Mounting structure and fabricated floor

Abstract

The application relates to the technical field of floor installation, and discloses an installation structure and a fabricated floor, wherein the installation structure comprises a support beam, a support unit used for connecting the support beam, the support unit comprises a first support rod and a second support rod, a rotating mechanism is arranged between the first support rod and the second support rod, and the first support rod and the second support rod are folded through the rotating mechanism; a support unit is installed on the support beam to form a frame structure, the support unit comprises a support frame, support plates are rotatably connected to the bottom of the two sides of the support frame, and the support plates are rotated to open to support the floor; the installation structure is arranged to install the floor, the installation structure can be folded and contracted to facilitate overall transportation, the installation structure is directly unfolded after reaching the installation position, the cumbersome operation caused by frequent installation operation behaviors is avoided, and meanwhile, the support unit and the support unit can be adjusted to enable the installation structure to adapt to floors of various sizes.

Description

Technical Field

[0001] This invention belongs to the field of floor slab installation technology, specifically, it relates to an installation structure and a prefabricated floor slab. Background Technology

[0002] In the construction field, the performance and construction efficiency of floor slabs and roof structures have always been core issues. Currently, traditional building structures suffer from functional defects and construction limitations in scenarios such as pitched roofs, the top floor of high-rise buildings, and ordinary floor slabs, as detailed below:

[0003] In the roof structure of pitched roof buildings, although traditional reinforced concrete (PC) roofs possess a certain degree of structural stability, they are insufficient in terms of sun protection, heat insulation, and waterproofing. In contrast, lightweight roofs, which consist of composite panels such as external corrugated steel and internal foam with tiles, can improve thermal insulation. However, to cope with heavy rain and strong winds and to control the roof's weight, it is necessary to densify and thicken the lightweight steel beams and columns, leading to increased material costs and construction complexity. At the same time, lightweight roofs have limited waterproofing and durability, and are prone to leakage and material aging problems after long-term use, making it difficult to meet the long-term needs of buildings.

[0004] In the roof structure of multi-story and high-rise buildings, whether reinforced concrete (PC) or all-steel structures are used, achieving sun protection, heat insulation, and waterproofing requires multiple complex processes: after the cast-in-place structure has naturally solidified, a slope must be manually created to allow water to drain, followed by the laying of an asphalt waterproof layer, filling with thermal insulation materials, and then leveling with mortar. Finally, a fine stone protective layer must be poured and decorative finishing completed. This process is not only cumbersome and costly in terms of labor, materials, and time, but the resulting roof slab can be up to three times thicker than a typical PC floor slab and more than twice as heavy, increasing the overall building load and placing higher demands on the building foundation and load-bearing structure.

[0005] In the field of conventional floor slabs, both traditional reinforced concrete and steel structures rely on on-site casting or semi-cast casting processes, resulting in low construction efficiency and significant susceptibility to environmental factors. To meet the demands of large loads, designs with "thick beams and columns" or multiple beams and columns are often adopted, leading to reduced space utilization and material waste. Even with prestressed floor slab technology, on-site casting is still required. For large-span prestressed floor slabs, to achieve ultra-long and ultra-wide areas, the slab thickness typically needs to be increased to 300-500mm, which not only increases the difficulty of manufacturing, unloading, transportation, and installation but also significantly increases costs, making widespread application in practical projects difficult.

[0006] Chinese Patent CN113550475B discloses a precast floor slab installation structure, including a beam body with several floor slab bodies mounted on it. Each floor slab body has a first insert block, and the beam body has a first slot for inserting the first insert block. A second insert block slides on the beam body, and the first insert block has a second slot for inserting the second insert block. The beam body has a driving mechanism for driving the second insert block to slide towards the second slot. The first insert block is inserted into the first slot, causing the floor slab body to fit against the beam body. The driving mechanism drives the second insert block to slide towards the second slot, causing it to insert into the second slot. This limits the vertical movement of the floor slab body, preventing it from detaching from the beam body, thereby improving the stability of the floor slab body and reducing the risk of displacement.

[0007] However, this technical solution still has at least the following drawbacks: In this solution, the precast floor slab installation structure can only achieve a secure installation of the floor slab to prevent it from detaching from the beams, but it cannot enable rapid installation of the floor slab, nor can it be adjusted according to the size of the floor slab. Therefore, this invention is proposed. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides an installation structure and a prefabricated floor slab. The installation structure is used to install the floor slab, and it can be folded and retracted for easy transport as a whole. Upon arrival at the installation location, it can be directly unfolded, avoiding the cumbersome process of frequent installation operations. Furthermore, the support units and bracket units are adjustable to accommodate floor slabs of various sizes. By layering the floor slab, it can be configured to have different functions. The load-bearing base layer has its thickness rationally distributed according to the stress conditions, allowing it to better cope with areas of concentrated stress.

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

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

[0011] Support beam;

[0012] A support unit is used to connect the support beam. The support unit includes a first support rod and a second support rod. A rotating mechanism is provided between the first support rod and the second support rod to realize the folding of the first support rod and the second support rod.

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

[0014] In 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. The fixed block is fixedly connected to a second support rod. A spring-opening mechanism is provided on the second support rod. The spring-opening 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] In a preferred embodiment of the present invention, the spring-opening mechanism includes a slide rod, which is movably inserted into both sides of the movable block. A first spring is movably sleeved on the slide rod. Grooves are formed on both sides of the inner wall of the second support rod. The two ends of the slide rod are fixedly installed on the inner walls of the grooves. When the rotating body is in the closed state, the first support rod and the second support rod rotate relative to each other to fold the support unit. When the rotating body is in the open state, the first support rod and the second support rod cannot rotate to keep the support unit in the unfolded state.

[0016] In a preferred embodiment of the present invention, the support unit further includes an adjustment mechanism, which includes an adjustment rod. Limiting plugs are fixedly installed at both ends of the adjustment rod, and both ends of the adjustment rod are movably inserted into the support frame. The adjustment mechanism realizes the length adjustment of the support unit by the relative sliding between 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 sliding groove is provided on the support beam. The positioning column is slidably connected to the sliding groove.

[0017] In a preferred embodiment of the present invention, a locking mechanism is provided on the support beam. The locking mechanism includes a locking plate rotatably connected to the side wall of the support beam, and the locking plate is provided with a toothed groove. A second spring is installed on one side of the locking plate. The elastic force of the second spring acts on the locking plate to make it open outward and drive the toothed groove to abut against the floor slab so that the floor slab remains locked.

[0018] A prefabricated floor slab, installed on the aforementioned installation structure, includes multi-layer components. The multi-layer components include a surface layer, an intermediate layer, and a base layer, wherein the base layer is used to bear the load of the floor slab. The multi-layer components are configured with a variable cross-section, and the thickness distribution of each part of the base layer is adjusted according to the stress requirements of the floor slab, increasing the thickness of the base layer at the stress-bearing areas and decreasing the thickness of the base layer at the non-stress-bearing areas.

[0019] In a preferred embodiment of the present invention, the base layer is configured such that the thickness decreases from the edge to the middle, and the surface layer is configured such that the thickness increases from the edge to the middle, with the decrease and increase being of the same magnitude. The thickness of each part of the intermediate layer is the same, and its upper and lower surfaces are aligned with the bottom of the surface layer and the top of the base layer, respectively.

[0020] In a preferred embodiment of the present invention, the surface layer is provided with a compressive strength pattern, which is used to enhance the compressive strength of the surface layer.

[0021] The surface layer, intermediate layer, and base layer are all equipped with stress-absorbing mechanisms, which include a helical skeleton. The rotation of the helical skeleton absorbs the stress generated inside the surface layer, intermediate layer, and base layer.

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

[0023] In a preferred embodiment of the present invention, the multi-layer component includes a surface layer and a lower layer, wherein 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 advantages:

[0025] This invention installs floor slabs by setting up an installation structure, which can be folded and retracted for overall transportation. Once it arrives at the installation location, it can be unfolded directly, avoiding the tediousness of frequent installation operations. At the same time, the bracket unit and support unit can be adjusted so that the installation structure can adapt to floor slabs of various sizes.

[0026] This invention uses layered materials for the floor slab to give it different functions. At the same time, the base layer used for load-bearing functions can have its thickness reasonably distributed according to the stress conditions, so that the base layer can better cope with areas of concentrated stress. Attached Figure Description

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

[0028] Figure 2 This is a schematic diagram of the unfolded installation structure of the present invention;

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

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

[0031] Figure 5 This is a schematic diagram of the support unit in the deployed state of the present invention;

[0032] Figure 6 This is an exploded view of the support unit of the present invention;

[0033] Figure 7This is a schematic diagram of the structure at 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 schematic diagram of the locking plate structure of the present invention;

[0037] Figure 11 This is a schematic diagram of the prefabricated floor slab structure in Embodiment 2 of the present invention;

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

[0039] Figure 13 This is a schematic diagram of the spiral skeleton structure of the present invention;

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

[0041] Figure label:

[0042] 100. Support beam;

[0043] 200. Support unit; 201. First support rod; 202. Second support rod; 203. Fixing block; 204. Groove; 205. Slide rod; 206. First spring; 207. Movable block; 208. Rotating body; 209. Moving slot;

[0044] 300. Support unit; 301. Support frame; 302. Support plate; 303. Positioning post; 304. Slide groove; 305. Adjusting rod; 306. Limiting plug;

[0045] 400. Locking plate; 401. Second spring; 402. Tooth groove;

[0046] 500, Surface layer; 501, Intermediate layer; 502, Base layer; 503, Compression-resistant pattern; 504, Spiral skeleton;

[0047] 600, top layer; 601, bottom layer. Detailed Implementation

[0048] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0049] Example 1

[0050] like Figures 1 to 10 As shown, an installation structure includes,

[0051] Support beam 100;

[0052] The support unit 200 is used to connect the support beam 100. The support unit 200 includes a first support rod 201 and a second support rod 202. A rotating mechanism is provided between the first support rod 201 and the second support rod 202 to realize the 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. Support plates 302 are rotatably connected to the bottom of both sides of the support frame 301. The support plates 302 can be rotated open to support the floor slab.

[0054] like Figures 4 to 7 As shown, in a specific embodiment, the rotating mechanism includes two symmetrically distributed rotating bodies 208. A fixed block 203 and a movable block 207 are fixedly installed at both ends of the two rotating bodies 208, respectively. The fixed block 203 is fixedly connected to the second support rod 202. A spring-loaded mechanism is provided on the second support rod 202 to apply elastic force to separate the two rotating bodies 208. A movable groove 209 is provided on the first support rod 201, and the rotating bodies 208 are movably connected within the movable groove 209. In this configuration, the rotating bodies 208 are semi-cylinders, and the combination of the two rotating bodies 208 forms a complete cylinder, which can serve as the rotation axis between the first support rod 201 and the second support rod 202, allowing rotation between them. When the two rotating bodies 208 separate, they have multiple contact points with the movable groove 209 in the first support rod 201, preventing the rotating bodies 208 from rotating within the first support rod 201.

[0055] like Figures 6 to 7 As shown, the spring-opening mechanism further includes a slide rod 205, which is movably inserted into both sides of the movable block 207. A first spring 206 is movably sleeved on the slide rod 205. Grooves 204 are formed on both sides of the inner wall of the second support rod 202. The two ends of the slide rod 205 are fixedly installed on the two ends of the inner wall 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 support 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 to keep the support unit 200 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. Limiting plugs 306 are fixedly installed at both ends of the adjustment rod 305. Both 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 between the support frame 301 and the adjustment rod 305. A positioning post 303 is fixedly installed at the bottom of one end of the support frame 301. A sliding groove 304 is provided on the support beam 100, and the positioning post 303 is slidably connected to the sliding groove 304. In this configuration, each adjustment rod 305 has a support frame 301 at both ends. When one end of the support frame 301 moves to a certain position from one end of the adjustment rod 305, it abuts against the limiting plug 306 at the end of the adjustment rod 305, preventing the support frame 301 from moving further and preventing the support frame 301 from detaching from the adjustment rod 305.

[0057] like Figure 10 As shown, a locking mechanism is further provided on the support beam 100. The locking mechanism includes a locking plate 400 rotatably connected to the side wall of the support beam 100, and the locking plate 400 has a toothed groove 402. 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 make it open outward, and drives the toothed groove 402 to abut against the floor slab to keep the floor slab in a locked state. In this configuration, when the floor slab is installed, the side wall of the floor slab abuts against the locking plate 400 and retracts inward. At the same time, the elastic force of the second spring 401 acts on the locking plate 400 to make it abut against the floor slab. Locking plates 400 are installed on both sides of the support beam 100 located in the middle part, and the two locking plates 400 share the second spring 401. Locking plates 400 are only provided on one side of the support beam 100 located on both sides.

[0058] The implementation principle of an installation structure in this embodiment is as follows: When the installation structure is unfolded, the support beam 100 is unfolded manually. At this time, the distance between two adjacent support beams 100 increases, which increases the distance between the first support rod 201 and the second support rod 202 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 abuts against the rotating body 208, so that the elastic force of the first spring 206 acts on the movable block 207, so that the two rotating bodies 208 are separated. At this time, the two rotating bodies 208 cannot be spliced ​​into a cylinder. They 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, thus 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 against 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 unfolds, it pulls the support frame 301 to be upright through the sliding groove 304 and the positioning column 303. At this time, the support plate 302 loses the support of the support beam 100 and rotates to unfold, thereby playing a supporting role for the floor slab. At the same time, the mutual sliding function of the support frame 301 and the adjusting rod 305 allows it to adapt and adjust according to the spacing of the support beam 100. By adjusting the position of the positioning column 303 in the sliding groove 304, the position of 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, a prefabricated floor slab is installed on an installation structure and includes multi-layer components. The multi-layer components include a surface layer 500, an intermediate layer 501, and a base layer 502. The multi-layer components are 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 stress requirements of the floor slab.

[0063] The surface layer 500 has a compressive strength pattern 503, which is used to enhance the compressive strength of the surface layer 500.

[0064] Stress-absorbing mechanisms are provided inside the surface layer 500, the intermediate layer 501, and the base layer 502. The stress-absorbing mechanism includes a spiral skeleton 504, which absorbs the stress generated inside the surface layer 500, the intermediate layer 501, and the base layer 502 through rotation.

[0065] The compressive strength pattern 503 on the surface layer 500 allows the surface layer 500 to absorb the pressure through the deformation capacity of the compressive strength pattern 503 when subjected to external force. The spiral skeleton 504 set inside each layer absorbs the stress through its own torsional deformation when each layer is subjected to stress, preventing stress from damaging 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 support the floor slab. The thickness of the base layer 502 decreases from the edge to the center, while the thickness of the surface layer 500 increases from the edge to the center, with the decrease and increase rates being consistent. The thickness of the intermediate layer 501 is consistent across all parts, 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 made of expanded clay concrete, the intermediate layer 501 is made of foamed ceramic, and the surface layer 500 is made of fiber-reinforced calcium silicate board.

[0067] Fiber-silica calcium board serves as the protective base layer, primarily composed of siliceous and calcareous materials, reinforced with plant or mineral fibers. It is manufactured through autoclaving, resulting in a hard surface, dense texture, and waterproof / seepage-proof properties. Foamed ceramics are made from crushed, batched, and high-temperature foamed ceramic waste, featuring a honeycomb-like closed-pore structure. This structure provides efficient thermal insulation, sound insulation, and noise reduction. The intermediate layer 501, composed of foamed ceramics, forms the core functional layer of the floor slab. Lightweight expanded clay concrete slabs use lightweight expanded clay aggregates mixed with cement and sand for casting. They exhibit high compressive strength, enabling them to bear heavy loads. Furthermore, the low density of expanded clay aggregates significantly reduces the overall weight of the floor slab, minimizing the load on other building structures. The base layer 502, composed of expanded clay concrete slabs, serves as the core load-bearing layer.

[0068] As the load-bearing layer of the floor slab, the base layer 502 is distributed at the edge of the base layer 502. The thickness of the edge is set to be greater than that of the middle part, which can effectively bear more load. As the core functional layer, the thickness of the middle layer 501 is set to be consistent throughout, so that the thermal insulation and sound insulation and noise reduction effects of the middle layer 501 are consistent throughout.

[0069] The prefabricated floor slab in this embodiment can be used for paving pitched roofs and roof floors. The base slab is made of expanded clay reinforced concrete, which is waterproof, seepage-proof, lightweight, and high-strength, with a density of 1.2-1.5 t / m³. 3 (The type and density of steel are determined based on the span and stress); the upper layer is a foamed ceramic board, which is waterproof, leak-proof, heat-insulating, and sound-insulating, with a density of 0.4 t / m³. 3 The surface is made of fiber-reinforced calcium silicate board, which is sturdy, durable, waterproof, and leak-proof.

[0070] Example 3

[0071] This embodiment uses a different approach than the embodiments described above.

[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-silica calcium raw materials with inorganic fibers and water, foaming and initially setting, then adding fine reinforcement, slicing, and sending it to a high-temperature and high-pressure autoclave. After 12 hours of steam curing, it becomes a strong, rigid, heat-insulating, and sound-insulating lightweight concrete slab, weighing 600-1000 kg / m². 3 The lower 601 layer is made of expanded clay concrete, which is produced by sorting and extracting tailings or waste ceramics, grinding them into powder, adding water to form a mud-like consistency, and then calcining it in a furnace at 1200℃ to create high-strength, ultra-lightweight, hollow, multi-layered granules. These granules replace hard stone and are mixed with cement and quartz sand for reinforcement, then cut into slabs. After being solidified in a factory at a constant temperature, the slabs have a density of 1000-1500 kg. Finally, the two types of slabs are bonded together with adhesive under high pressure. This floor slab combines the lightweight, easy-to-work, dense, and sturdy nature of the 600 surface layer with the high-strength, fire-resistant, lightweight, and smooth nature of the 601 lower layer. The common features of their composite are sound insulation, heat 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 it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An installation structure, characterized in that, include: Support beam (100); A support unit (200) is used to connect the support beam (100). The support unit (200) includes a first support rod (201) and a second support rod (202). A rotating mechanism is provided between the first support rod (201) and the second support rod (202) to realize the folding of the first support rod (201) and the second support rod (202). 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). Support plates (302) are rotatably connected to the bottom of both sides of the support frame (301). The support plates (302) are rotated open to support the floor slab. The rotating mechanism includes two symmetrically distributed rotating bodies (208), and fixed blocks (203) and movable blocks (207) are fixedly installed at both ends of the two rotating bodies (208), respectively. The fixed blocks (203) are fixedly connected to the second support rod (202). The second support rod (202) is provided with a spring-opening mechanism, which is used to apply elastic force to separate the two rotating bodies (208). The first support rod (201) is provided with a moving groove (209), and the rotating bodies (208) are movably connected in the moving groove (209). The spring-opening mechanism includes a slide rod (205), which is movably inserted into 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). The two ends of the slide rod (205) are fixedly installed on the two ends of the inner wall of the groove (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 support 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 to keep the support unit (200) in the unfolded state. The support unit (300) further includes an adjustment mechanism, which includes an adjustment rod (305). Limit plugs (306) are fixedly installed at both ends of the adjustment rod (305). Both ends of the adjustment rod (305) are movably inserted into the support frame (301). The adjustment mechanism realizes the length adjustment 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 sliding groove (304) is opened on the support beam (100). The positioning column (303) is slidably connected to the sliding groove (304). A locking mechanism is provided on the support beam (100). The locking mechanism includes a locking plate (400) rotatably connected to the side wall of the support beam (100). The locking plate (400) has a toothed groove (402). 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 make it open outward and drive the toothed groove (402) to abut against the floor to keep the floor locked.

2. A prefabricated floor slab, installed on the installation structure described in claim 1, characterized in that, The system includes a multi-layer component, comprising a surface layer (500), an intermediate layer (501), and a base layer (502). The base layer (502) is used to support the floor slab. The multi-layer component is configured with a variable cross-section, and the thickness distribution of each part of the base layer (502) is adjusted according to the stress requirements of the floor slab. The thickness of the base layer (502) is increased at the stress-bearing area and decreased at the non-stress-bearing area.

3. A prefabricated floor slab according to claim 2, characterized in that, The base layer (502) is configured such that the thickness decreases from the edge to the middle, and the surface layer (500) is configured such that the thickness increases from the edge to the middle, with the decrease and increase being of the same magnitude. The middle layer (501) has a uniform thickness in all parts, 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.

4. A prefabricated floor slab according to claim 3, characterized in that, The surface layer (500) is provided with a compressive strength pattern (503), which is used to enhance the compressive strength of the surface layer (500). The surface layer (500), intermediate layer (501) and base layer (502) are all provided with stress absorption mechanisms. The stress absorption mechanism includes a spiral skeleton (504), which absorbs the stress generated inside the surface layer (500), intermediate layer (501) and base layer (502) through the rotation of the spiral skeleton (504).

5. A prefabricated floor slab according to claim 4, characterized in that, The base layer (502) is made of expanded clay concrete board, the intermediate layer (501) is made of foamed ceramic, and the surface layer (500) is made of fiber calcium silicate board.

6. A prefabricated floor slab according to claim 5, characterized in that, 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 expanded clay fiber reinforced concrete.

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