Building floor opening protection device

Abstract

The invention discloses a building floor opening protection device, and relates to the technical field of building construction safety protection. Comprising a sliding block, the sliding block is located in the sliding groove and slidably connected with the square plate through the sliding groove, a guide rod penetrates through the sliding block, a compression spring is fixedly connected to the outer side of the sliding block, and a through hole is formed in the bottom of the sliding block. According to the building floor hole protection device, the sliding blocks make close contact with the inner wall of the hole, a stable supporting structure can be formed, the structure can effectively prevent the protection device from shaking, toppling or shifting when the protection device is impacted by external force, it is ensured that the protection device is kept at the correct position all the time, reliable protection is provided for the hole, and the service life of the hole is prolonged. And meanwhile, the contact between the bottom and the side of the hole can uniformly disperse the pressure to the structure around the hole, so that the protection device can be prevented from being damaged due to overlarge local stress, the pressure borne by the hole structure is reduced, and the building structure around the hole is protected from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction safety protection, and specifically relates to a protection device for building floor openings. Background Technique

[0002] Building floors are the horizontal layers inside a building, usually consisting of one or more rooms, corridors, and public spaces. Floors are the partition components used to divide space in a building. They divide the building into several parts vertically. During the floor construction process, openings need to be reserved in advance for uses such as cable tray holes through the floor slab, water pipe holes through the floor slab and wall, fire hydrant holes, reserved holes for distribution boxes, toilet exhaust holes, layout holes, construction channels, and scaffolding tie holes.

[0003] After pouring concrete, a protective structure needs to be set at these openings to ensure construction safety. The traditional floor opening protective structure is operated after the concrete is poured. Specifically, expansion bolts are driven into the concrete floor slab that has reached the strength, and the protective structure is installed. Due to the installation method, the traditional protective structure has a small number of usable times, high manufacturing costs, and high labor costs for installation. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A protection device for building floor openings includes a fixing component, which is used to prevent people from falling from the opening, and the number of fixing components is two; A protection component, which is fixedly installed at the outer edge of the fixing component; An intermediate plate, which is fixedly connected to the fixing component. The two fixing components are fixedly connected through the intermediate plate, and squares are provided on both sides of the intermediate plate; Among them, the fixing component is mainly composed of a support member and a limiting member; The support member includes a square plate, and four chutes are opened at the bottom of the square plate. The four chutes are evenly distributed at the bottom of the square plate, and a guide rod is fixedly connected inside the chute; Preferably, the limiting member includes a slider. The slider is located inside the sliding groove. The slider is slidably connected to the square plate through the sliding groove. Place the square plate on the hole opening. Utilizing the elastic property of the compression spring, the slider moves along the guide rod on the inner wall of the sliding groove towards the side of the hole opening, causing the slider to be in close contact with the inner wall of the hole opening, and a stable support structure can be formed. This structure can effectively prevent the protective device from shaking, toppling, or shifting when subjected to external impact, ensuring that it always remains in the correct position, providing reliable protection for the hole opening. At the same time, the contact between the bottom and the side of the hole opening can evenly disperse the pressure to the structure around the hole opening, which can avoid excessive local stress on the protective device and damage, and also reduce the pressure borne by the hole opening structure, protecting the building structure around the hole opening from being damaged. The guide rod penetrates through the slider, and a compression spring is fixedly connected to the outer side of the slider.

[0005] Preferably, the fixing assembly includes a rotating disk. The rotating disk rotates with the square plate. A rotating shaft is fixedly connected to the bottom of the rotating disk. The rotating shaft penetrates through the square plate. A fixing plate is fixedly connected to the bottom of the rotating shaft. A connecting rod is fixedly connected to the outer side of the fixing plate. The number of connecting rods is four, and the four connecting rods are evenly distributed at the edge of the fixing plate. The end of the connecting rod away from the fixing plate is fixedly connected to an arc rod. A circular groove is opened on the side of the fixing plate close to the rotating shaft. In the initial state, the arc rod is located inside the through hole, and the slider is located on the side close to the fixing plate. Place the square plate on the hole opening and rotate the rotating disk, so that the rotating disk drives the fixing plate to rotate through the rotating shaft. The fixing plate drives the connecting rod and the arc rod to rotate, causing the arc rod to rotate inside the through hole. Under the elastic force of the return spring, the fixing rod comes into contact with the side of the hole opening, which can flexibly adapt to various hole sizes. The adjustment process is relatively simple and fast, without the need to replace the entire protective device, improving the versatility and use efficiency of the protective device, reducing costs. A return spring is fixedly connected inside the circular groove. A fixing ring is fixedly connected to the side of the return spring close to the rotating shaft. The fixing ring is sleeved on the outer side of the rotating shaft. A plurality of grooves are opened on the side of the fixing ring away from the fixing plate. The plurality of grooves are evenly distributed on the fixing ring. A V-shaped plate is fixedly connected to the outer edge of the support member. The square plate is located inside the hole opening. The connecting block and the fixing frame are located at the top of the hole opening edge. The square plate and the top fixing frame are integrally designed in a T shape. The horizontal part of the T-shaped cover plate can cover the surface of the hole opening, providing a large area of protection to prevent people and objects from falling. Its vertical part is inserted into the hole opening edge, increasing the contact area and friction between the cover plate and the hole opening, making the cover plate not easy to move or slide in the horizontal direction. By setting the V-shaped plate, the V-shaped plate closely cooperates with the hole opening edge and the T-shaped cover plate, further filling the possible gap between the cover plate and the hole opening. The two sides of the V-shaped plate can be in close contact with the side of the hole opening edge and the T-shaped cover plate respectively, forming a relatively closed space, improving the sealing performance of the hole opening protection and helping to prevent the influence of external factors on the space below the hole opening.

[0006] Preferably, a circular ring is fixedly connected to the bottom of the square plate, and a convex block is fixedly connected to the bottom of the circular ring. There are multiple convex blocks, and the multiple convex blocks are evenly distributed on the circular ring. The convex blocks are located inside the grooves. The circular ring and the fixed ring are clamped through the grooves and the convex blocks. A connecting block is fixedly connected to the top of the square plate. The rotating shaft drives the fixed plate to rotate, and the fixed plate drives the fixed ring to rotate, so that the convex blocks on the circular ring contact and squeeze the fixed ring. The return spring is compressed under force, so that the fixed ring moves in the circular groove towards the fixed plate, causing the fixed plate to rotate. When the rotation stops, under the elastic force of the return spring, the circular ring and the fixed ring are clamped, playing a self-locking role, enabling the fixing rod to be firmly fixed on the side of the hole, preventing it from shifting or loosening due to external force. The self-locking device can ensure that the fixing rod remains in close contact with the side of the hole when subjected to external force, maintaining the accuracy of its protective position, and effectively avoiding the problem of protective failure caused by the displacement of the fixing rod. There are four connecting blocks, and the four connecting blocks are evenly distributed at the corners of the square plate. A fixed frame is fixedly connected to the side of the connecting block away from the square plate. The square plate and the connecting block are located inside the fixed frame. A circular hole is opened in the middle of the top of the connecting block, and a card slot is opened on the outside of the square plate. The square block on the outside of the middle plate is located inside the card slot, enabling adjacent two square plates to be connected through the middle plate. The square block on the outside of the middle plate is located inside the card slot.

[0007] A through hole is opened at the bottom of the slider. One end of the slider away from the compression spring is fixedly connected to a fixing rod. The side of the fixing rod away from the compression spring is arc-shaped. The arc rod is located inside the through hole and on the side of the fixing rod close to the compression spring.

[0008] Preferably, the protection component includes columns. There are multiple columns, and the multiple columns are evenly distributed at the corners of the square plate. The columns are located inside the round holes. Rubber pads are provided at the bottoms of the columns. An intermediate column is fixedly connected to the outside of the columns. Trapezoidal grooves are formed on the outside of the intermediate column. There are multiple trapezoidal grooves, and the multiple trapezoidal grooves are evenly distributed on the outer surface of the intermediate column. Square holes are formed in the middle of the bottoms of the trapezoidal grooves. An intermediate block is arranged on the outside of the intermediate column. Place the columns in the round holes on the connecting blocks, and then place the mesh plate inside the trapezoidal grooves on the adjacent intermediate columns, so as to form a guardrail at the edge of the square plate. The splicing method makes the installation process of the guardrail simpler and faster. Construction workers can assemble each splicing component on site without complex tools and professional skills. Compared with the integral guardrail, the spliced guardrail is easier to carry and operate, can effectively improve the installation efficiency, save construction time and labor costs. The intermediate block is located at the interval between two square plates. The two columns are connected through the intermediate block, the square hole and the trapezoidal groove. A connecting plate is fixedly connected to the side of the column close to the intermediate column. A V-shaped block is fixedly connected to the bottom of the connecting plate. By setting the V-shaped block, the V-shaped block can effectively disperse the action of force, reduce the possibility of the column shaking or displacing on the connecting block, make the guardrail more stable. At the same time, the V-shaped block can absorb part of the impact force through its own deformation or elasticity, reduce the energy transmitted to the cover plate and other components of the guardrail, thereby reducing the risk of damage caused by impact and extending the service life of the guardrail and the cover plate. The V-shaped block is perpendicular to the connecting plate. A mesh plate is slidably connected inside the trapezoidal groove.

[0009] The present invention provides a protection device for building floor openings. It has the following beneficial effects: First, in this protection device for building floor openings, by closely contacting the inner wall of the opening through the slider, a stable support structure can be formed. This structure can effectively prevent the protection device from shaking, tipping or shifting when subjected to external impact, ensuring that it always remains in the correct position and providing reliable protection for the opening.

[0010] Second, in this protection device for building floor openings, by rotating the arc rod inside the through hole and under the elastic force of the return spring, the fixed rod contacts the side of the opening, which can flexibly adapt to various opening sizes. The adjustment process is relatively simple and fast, without replacing the entire protection device, improving the versatility and use efficiency of the protection device and reducing the cost.

[0011] Third, in this protection device for building floor openings, by setting the V-shaped plate, the V-shaped plate closely cooperates with the edge of the opening and the T-shaped cover plate, further filling the possible gap between the cover plate and the opening. The two sides of the V-shaped plate can be in close contact with the edge of the opening and the side of the T-shaped cover plate respectively, forming a relatively closed space, improving the sealing performance of the opening protection and helping to prevent the influence of external factors on the space below the opening.

[0012] IV. The floor opening protection device of the building is clamped by a circular ring and a fixed ring to play a self-locking role, enabling the fixing rod to be firmly fixed on the side of the opening, preventing it from shifting or loosening due to external forces. The self-locking device can ensure that the fixing rod remains in close contact with the side of the opening when subjected to external forces, maintaining the accuracy of its protection position, and effectively avoiding the problem of protection failure caused by the displacement of the fixing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic structural diagram of the bottom view of the present invention; Figure 3 is a schematic structural diagram of the fixing component of the present invention; Figure 4 is a schematic structural diagram of the bottom view of the fixing component of the present invention; Figure 5 is a schematic structural diagram of a part of the fixing component of the present invention; Figure 6 is a schematic structural diagram of a partial cross-sectional view of the fixing component of the present invention; Figure 7 is a schematic structural diagram of the support member of the present invention; Figure 8 is a schematic structural diagram of the limiting member of the present invention; Figure 9 is a schematic structural diagram of the protection component of the present invention; Figure 10 is a schematic structural diagram of a part of the protection component of the present invention.

[0014] In the figures: 1. Protection component; 11. Support pillar; 12. Intermediate pillar; 13. Mesh plate; 14. V-shaped block; 15. Intermediate block; 16. Connecting plate; 17. Trapezoidal groove; 18. Square hole; 2. Fixing component; 21. Rotating disk; 22. Support member; 221. Square plate; 222. Connecting block; 223. Fixed frame; 224. Round hole; 225. Sliding groove; 226. Guide rod; 227. Card slot; 228. Circular ring; 229. Convex block; 23. V-shaped plate; 24. Limiting member; 241. Slider; 242. Through hole; 243. Fixing rod; 244. Compression spring; 25. Rotating shaft; 26. Fixed plate; 27. Arc rod; 28. Fixed ring; 29. Groove; 210. Round groove; 211. Return spring; 212. Connecting rod; 3. Intermediate plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] The first embodiment is as follows Figures 1 to 8 As shown, the present invention provides a technical solution: a building floor opening protection device, including a fixing component 2, which is used to prevent people from falling from the opening. The number of the fixing components 2 is two; A protection component 1, which is fixedly installed at the outer edge of the fixing component 2; An intermediate plate 3, which is fixedly connected to the fixing component 2. The two fixing components 2 are fixedly connected through the intermediate plate 3. Blocks are provided on both sides of the intermediate plate 3; Among them, the fixing component 2 is mainly composed of a support member 22 and a limiting member 24; The support member 22 includes a square plate 221. A chute 225 is opened at the bottom of the square plate 221. The number of the chutes 225 is four, and the four chutes 225 are evenly distributed at the bottom of the square plate 221. A guide rod 226 is fixedly connected inside the chute 225; The limiting member 24 includes a slider 241. The slider 241 is located inside the chute 225. The slider 241 is slidably connected to the square plate 221 through the chute 225. The square plate 221 is placed on the opening. Utilizing the elastic performance of the compression spring 244, the slider 241 moves along the guide rod 226 on the inner wall of the chute 225 towards the side of the opening, so that the slider 241 is in close contact with the inner wall of the opening, and a stable support structure can be formed. This structure can effectively prevent the protection device from shaking, toppling or shifting when subjected to external force impacts, ensure that it always remains in the correct position, provide reliable protection for the opening. At the same time, the contact at the bottom with the side of the opening can evenly disperse the pressure to the structures around the opening. In this way, it can avoid excessive local stress on the protection device and damage, and at the same time reduce the pressure borne by the opening structure, protecting the building structures around the opening from damage. The guide rod 226 penetrates through the slider 241, and a compression spring 244 is fixedly connected to the outside of the slider 241.

[0017] The second embodiment is based on the first embodiment. Please refer to Figures 3 to 8As shown, the fixing component 2 includes a rotating disk 21. The rotating disk 21 rotates with the square plate 221. A rotating shaft 25 is fixedly connected to the bottom of the rotating disk 21. The rotating shaft 25 penetrates through the square plate 221. A fixing plate 26 is fixedly connected to the bottom of the rotating shaft 25. A connecting rod 212 is fixedly connected to the outer side of the fixing plate 26. The number of the connecting rods 212 is four. The four connecting rods 212 are evenly distributed at the edge of the fixing plate 26. One end of the connecting rod 212 away from the fixing plate 26 is fixedly connected to an arc rod 27. A circular groove 210 is formed on one side of the fixing plate 26 close to the rotating shaft 25. In the initial state, the arc rod 27 is located inside the through hole 242, and the slider 241 is located on the side close to the fixing plate 26. Place the square plate 221 on the hole opening, and rotate the rotating disk 21, so that the rotating disk 21 drives the fixing plate 26 to rotate through the rotating shaft 25. The fixing plate 26 drives the connecting rod 212 and the arc rod 27 to rotate, so that the arc rod 27 rotates inside the through hole 242. Under the elastic force of the return spring 211, the fixing rod 243 contacts the side of the hole opening, which can flexibly adapt to various hole sizes. The adjustment process is relatively simple and fast, without replacing the entire protection device, improving the versatility and use efficiency of the protection device, reducing the cost. A return spring 211 is fixedly connected inside the circular groove 210. A fixing ring 28 is fixedly connected to one side of the return spring 211 close to the rotating shaft 25. The fixing ring 28 is sleeved on the outer side of the rotating shaft 25. A groove 29 is formed on one side of the fixing ring 28 away from the fixing plate 26. The number of the grooves 29 is multiple. The multiple grooves 29 are evenly distributed on the fixing ring 28. A V-shaped plate 23 is fixedly connected to the outer edge of the support member 22. The square plate 221 is located inside the hole opening. The connecting block 222 and the fixing frame 223 are located at the top of the hole edge. The square plate 221 and the top fixing frame 223 are integrally designed in a T shape. The horizontal part of the T-shaped cover plate can cover the hole surface, providing a large area of protection to prevent people and objects from falling. Its vertical part is inserted into the hole edge, increasing the contact area and friction between the cover plate and the hole opening, making the cover plate not easy to move or slide in the horizontal direction. By setting the V-shaped plate 23, the V-shaped plate 23 closely cooperates with the hole edge and the T-shaped cover plate, further filling the possible gap between the cover plate and the hole opening. The two sides of the V-shaped plate 23 can be in close contact with the hole edge and the side surface of the T-shaped cover plate respectively, forming a relatively closed space, improving the sealing performance of the hole opening protection and helping to prevent the influence of external factors on the space below the hole opening.

[0018] A circular ring 228 is fixedly connected to the bottom of the square plate 221. A convex block 229 is fixedly connected to the bottom of the circular ring 228. The number of the convex blocks 229 is multiple, and the multiple convex blocks 229 are evenly distributed on the circular ring 228. The convex block 229 is located inside the groove 29. The circular ring 228 and the fixed ring 28 are clamped through the groove 29 and the convex block 229. A connecting block 222 is fixedly connected to the top of the square plate 221. The rotating shaft 25 drives the fixed plate 26 to rotate, and the fixed plate 26 drives the fixed ring 28 to rotate, so that the convex block 229 on the circular ring 228 contacts and presses against the fixed ring 28. The return spring 211 is compressed under force, so that the fixed ring 28 moves in the direction of the fixed plate 26 in the circular groove 210, causing the fixed plate 26 to rotate. When the rotation stops, under the elastic force of the return spring 211, the circular ring 228 and the fixed ring 28 are clamped, playing a self-locking role, enabling the fixing rod 243 to be firmly fixed on the side of the hole, preventing it from shifting or loosening due to external forces. The self-locking device can ensure that the fixing rod 243 is still in close contact with the side of the hole when subjected to external forces, maintaining the accuracy of its protective position, and effectively avoiding the problem of protective failure caused by the displacement of the fixing rod 243. The number of the connecting blocks 222 is four, and the four connecting blocks 222 are evenly distributed at the corners of the square plate 221. A fixing frame 223 is fixedly connected to the side of the connecting block 222 away from the square plate 221. The square plate 221 and the connecting block 222 are located inside the fixing frame 223. A round hole 224 is opened at the middle of the top of the connecting block 222. A clamping groove 227 is opened on the outer side of the square plate 221. The square block on the outer side of the middle plate 3 is located inside the clamping groove 227, enabling two adjacent square plates 221 to be connected through the middle plate 3. The square block on the outer side of the middle plate 3 is located inside the clamping groove 227.

[0019] A through hole 242 is opened at the bottom of the slider 241. A fixing rod 243 is fixedly connected to the end of the slider 241 away from the compression spring 244. The side of the fixing rod 243 away from the compression spring 244 is arc-shaped. The arc rod 27 is located inside the through hole 242, and the arc rod 27 is located on the side of the fixing rod 243 close to the compression spring 244.

[0020] Third Embodiment. On the basis of the first and second embodiments, please refer to Figures 9 to 10As shown in the figure, the protection component 1 includes struts 11. There are multiple struts 11, and the multiple struts 11 are evenly distributed at the corners of the square plate 221. The struts 11 are located inside the round holes 224. A rubber pad is provided at the bottom of the struts 11. An intermediate column 12 is fixedly connected to the outside of the struts 11. Trapezoidal grooves 17 are provided on the outside of the intermediate column 12. There are multiple trapezoidal grooves 17, and the multiple trapezoidal grooves 17 are evenly distributed on the outer surface of the intermediate column 12. A square hole 18 is provided at the middle of the bottom of the trapezoidal groove 17. An intermediate block 15 is provided on the outside of the intermediate column 12. Place the struts 11 in the round holes 224 on the connecting block 222, and then place the mesh plate 13 inside the trapezoidal grooves 17 on the adjacent intermediate columns 12, so as to form a guardrail at the edge of the square plate 221. The splicing method makes the installation process of the guardrail simpler and faster. Construction workers can assemble each splicing component on site without complex tools and professional skills. Compared with the integral guardrail, the spliced guardrail is easier to carry and operate, can effectively improve the installation efficiency, save construction time and labor costs. The intermediate block 15 is located at the interval between two square plates 221. The two struts 11 are connected through the intermediate block 15, the square hole 18 and the trapezoidal groove 17. A connecting plate 16 is fixedly connected to the side of the strut 11 close to the intermediate column 12. A V-shaped block 14 is fixedly connected to the bottom of the connecting plate 16. By setting the V-shaped block 14, the V-shaped block 14 can effectively disperse the action of force, reduce the possibility of the strut 11 shaking or displacing on the connecting block 222, make the guardrail more stable. At the same time, the V-shaped block 14 can absorb part of the impact force through its own deformation or elasticity, reduce the energy transmitted to the cover plate and other components of the guardrail, thereby reducing the damage risk caused by impact and extending the service life of the guardrail and the cover plate. The V-shaped block 14 is perpendicular to the connecting plate 16. The mesh plate 13 is slidably connected inside the trapezoidal groove 17.

[0021] When in use, place the square plate 221 on the hole, rotate the rotating disc 21, so that the rotating disc 21 drives the fixed plate 26 to rotate through the rotating shaft 25. The fixed plate 26 drives the connecting rod 212 and the arc rod 27 to rotate, so that the arc rod 27 rotates inside the through hole 242. Under the elastic force of the return spring 211, the fixed rod 243 contacts the side of the hole, and a stable support structure can be formed, which can flexibly adapt to various hole sizes.

[0022] The rotating shaft 25 drives the fixed plate 26 to rotate. The fixed plate 26 drives the fixed ring 28 to rotate, so that the convex block 229 on the ring 228 contacts and presses the fixed ring 28. The return spring 211 is compressed by force, so that the fixed ring 28 moves in the circular groove 210 towards the fixed plate 26, driving the fixed plate 26 to rotate. When the rotation stops, under the elastic force of the return spring 211, the ring 228 is clamped with the fixed ring 28, playing a self-locking role.

[0023] Place the support column 11 in the round hole 224 on the connecting block 222, and then place the mesh plate 13 inside the trapezoidal groove 17 on the adjacent middle column 12, so as to form a guardrail at the edge of the square plate 221.

[0024] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building floor opening protection device, characterized in that, Including: Fixing components (2) for preventing people from falling from the hole, and the number of the fixing components (2) is two; A protection component (1) fixedly installed at the outer edge of the fixing component (2); An intermediate plate (3) fixedly connected to the fixing component (2), and the two fixing components (2) are fixedly connected through the intermediate plate (3). Squares are provided on both sides of the intermediate plate (3); Among them, the fixing component (2) is mainly composed of a support member (22) and a limiting member (24); The support member (22) includes a square plate (221), and a chute (225) is opened at the bottom of the square plate (221). The number of the chutes (225) is four, and the four chutes (225) are evenly distributed at the bottom of the square plate (221). A guide rod (226) is fixedly connected inside the chute (225); The limiting member (24) includes a slider (241). The slider (241) is located inside the chute (225). The slider (241) is slidably connected to the square plate (221) through the chute (225). The guide rod (226) penetrates through the slider (241), and a compression spring (244) is fixedly connected to the outside of the slider (241).

2. The building floor opening protection device according to claim 1, characterized in that: The fixing component (2) includes a rotating disk (21). The rotating disk (21) rotates with the square plate (221). A rotating shaft (25) is fixedly connected to the bottom of the rotating disk (21). The rotating shaft (25) penetrates through the square plate (221). A fixing plate (26) is fixedly connected to the bottom of the rotating shaft (25). A connecting rod (212) is fixedly connected to the outside of the fixing plate (26). The number of the connecting rods (212) is four, and the four connecting rods (212) are evenly distributed at the edge of the fixing plate (26).

3. The building floor opening protection device according to claim 2, characterized in that: One end of the connecting rod (212) far from the fixing plate (26) is fixedly connected to an arc rod (27). A circular groove (210) is opened on one side of the fixing plate (26) close to the rotating shaft (25). A return spring (211) is fixedly connected inside the circular groove (210). A fixing ring (28) is fixedly connected to one side of the return spring (211) close to the rotating shaft (25).

4. The building floor opening protection device according to claim 3, characterized in that: The fixing ring (28) is sleeved on the outside of the rotating shaft (25). A groove (29) is opened on one side of the fixing ring (28) far from the fixing plate (26). The number of the grooves (29) is multiple, and the multiple grooves (29) are evenly distributed on the fixing ring (28). A V-shaped plate (23) is fixedly connected to the outer edge of the support member (22).

5. The building floor opening protection device according to claim 4, wherein: A circular ring (228) is fixedly connected to the bottom of the square plate (221). A convex block (229) is fixedly connected to the bottom of the circular ring (228). The number of the convex blocks (229) is multiple, and the multiple convex blocks (229) are evenly distributed on the circular ring (228). The convex block (229) is located inside the groove (29). The circular ring (228) and the fixing ring (28) are clamped through the groove (29) and the convex block (229).

6. The building floor opening protection device according to claim 5, wherein: A connecting block (222) is fixedly connected to the top of the square plate (221). There are four connecting blocks (222), and the four connecting blocks (222) are evenly distributed at the corners of the square plate (221). A fixing frame (223) is fixedly connected to the side of the connecting block (222) away from the square plate (221). The square plate (221) and the connecting block (222) are located inside the fixing frame (223). A round hole (224) is formed in the middle of the top of the connecting block (222). A clamping groove (227) is formed on the outer side of the square plate (221). The square block on the outer side of the middle plate (3) is located inside the clamping groove (227).

7. The building floor opening protection device according to claim 6, characterized in that: A through hole (242) is formed in the bottom of the slider (241). A fixing rod (243) is fixedly connected to one end of the slider (241) away from the compression spring (244). The side of the fixing rod (243) away from the compression spring (244) is arc-shaped. The arc rod (27) is located inside the through hole (242), and the arc rod (27) is located on the side of the fixing rod (243) close to the compression spring (244).

8. The building floor opening protection device according to claim 7, characterized in that: The protection assembly (1) includes columns (11). There are multiple columns (11), and the multiple columns (11) are evenly distributed at the corners of the square plate (221). The columns (11) are located inside the round holes (224). A rubber pad is provided at the bottom of the columns (11). An intermediate column (12) is fixedly connected to the outer side of the columns (11).

9. The building floor opening protection device according to claim 8, characterized in that: A trapezoidal groove (17) is formed on the outer side of the intermediate column (12). There are multiple trapezoidal grooves (17), and the multiple trapezoidal grooves (17) are evenly distributed on the outer surface of the intermediate column (12). A square hole (18) is formed in the middle of the bottom of the trapezoidal groove (17). An intermediate block (15) is arranged on the outer side of the intermediate column (12).

10. A building floor opening protection device according to claim 9, characterized in that: The intermediate block (15) is located at the interval between two square plates (221). The two columns (11) are connected through the intermediate block (15), the square hole (18) and the trapezoidal groove (17). A connecting plate (16) is fixedly connected to the side of the column (11) close to the intermediate column (12). A V-shaped block (14) is fixedly connected to the bottom of the connecting plate (16). The V-shaped block (14) is perpendicular to the connecting plate (16). A mesh plate (13) is slidably connected inside the trapezoidal groove (17).

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