Cantilever layer closed protection device and building construction protection frame

Abstract

The utility model discloses a cantilever layer sealing protection device and a building construction protection frame, and belongs to the technical field of building construction protection, the cantilever layer sealing protection device comprises a scaffold and a sealing plate assembly, and the scaffold comprises a supporting transverse rod, a supporting vertical rod and a connecting transverse rod assembly; the sealing plate assembly comprises a plurality of sealing plates and vertical connecting pieces, the plurality of sealing plates are sequentially connected to form an integral supporting bottom plate, each sealing plate is provided with the plurality of vertical connecting pieces, the plurality of vertical connecting pieces are vertically arranged on each sealing plate in an array mode, and the plurality of vertical connecting pieces are connected with the connecting cross rod assembly on the bottommost layer; the sealing plates are directly connected with the scaffold through the vertical connecting pieces, the sealing plates are connected to form the whole supporting bottom plate, an additional supporting structure does not need to be designed, the self weight is effectively reduced, splicing forming is fast, and the overall construction efficiency is high.

Description

Technical Field

[0001] This application relates to the field of construction safety technology, and in particular, to a cantilever floor enclosure and protection device. Furthermore, this application also relates to a construction safety frame including the aforementioned cantilever floor enclosure and protection device. Background Technology

[0002] The information provided in this section is for the purpose of generally presenting the background of this application. To the extent described in this section, the work of the currently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art of this application.

[0003] During construction, protective scaffolding needs to be erected. When constructing cantilevered scaffolding, issues related to the structural stability of the cantilevered section, connection reliability, protective measures, construction difficulty, and material selection must be addressed. This ensures the cantilevered section's resistance to overturning and deformation under various loads, requiring precise calculation of the cantilever length at support points and material strength. The connection between the cantilevered section and the main structure must be secure to prevent loosening and detachment. Appropriate safety measures must be implemented, including the installation of toe boards, guardrails, and safety nets according to regulations, to prevent falling objects and personnel from heights.

[0004] For example, Chinese patent publication number CN115749228A discloses a combined structure and construction method of safety netting and cantilevered scaffolding. The cantilevered I-beams are horizontally spaced and fixed to structural beams or walls via cantilever beam connectors. Steel pipe bases are installed on the cantilevered I-beams, and the bottom of the scaffolding is installed within the steel pipe bases. Connectors are installed on the cantilevered I-beams, avoiding the position of the steel pipe bases. One end of a basket brace is connected to the connector, and the other end is connected to the structural beam or wall. The bottom of the safety netting diagonal brace is connected to the end of the cantilevered I-beam, and one end of a telescopic brace is connected to the scaffolding, and the other end is connected to the middle of the safety netting diagonal brace. The safety netting is installed on the safety netting diagonal brace. This solution enables rapid installation and dismantling of the cantilevered scaffolding, facilitates the removal of debris from the safety netting, and ensures construction quality and safety.

[0005] However, due to the high requirements of high-altitude cantilever operations, both installation and dismantling must strictly adhere to safety regulations, making installation difficult. Traditional cantilever protection methods involve wooden barriers, which, while offering some protection against falling objects, suffer from poor durability, heavy weight, and weak strength and splicing ability. For worker safety, the cantilever and its protection system must balance lightweight design with high strength, reducing weight while maintaining load-bearing capacity, and also enabling rapid installation to improve work efficiency.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] In view of at least one of the above technical problems, this application provides a cantilever floor enclosure protection device, which uses enclosure panels to be directly connected to the scaffolding through vertical connectors. The enclosure panels are connected to each other to form a whole support base plate, eliminating the need for additional support structures, effectively reducing self-weight, and allowing for quick assembly and high overall construction efficiency.

[0008] This application also provides a construction protection frame that includes the aforementioned cantilever layer enclosure protection device.

[0009] According to one aspect of this application, a cantilever floor enclosure protection device is provided, including scaffolding, enclosure panel assembly and safety net. The scaffolding includes support horizontal bars, support vertical bars and connecting horizontal bar assembly. The first end of the support horizontal bar is used to connect to the building platform, and the second end of the support horizontal bar is used to extend out of the building platform and connect to the support vertical bar. Multiple support horizontal bars are provided and arranged in an array. Multiple support vertical bars are provided and arranged in an array. The support vertical bars are interconnected by a multi-layer connecting horizontal bar assembly.

[0010] The enclosed panel assembly includes enclosed panels and vertical connectors. The enclosed panels are provided in multiple pieces, and the multiple enclosed panels are connected in sequence to form a whole support base plate. Each enclosed panel is provided with multiple vertical connectors, which are arranged in a vertical array on each enclosed panel. The multiple vertical connectors are connected to the bottom connecting crossbar assembly.

[0011] The safety net is installed on the side of the scaffold away from the building platform, and the bottom end of the safety net is connected to the supporting base plate.

[0012] In some embodiments of this application, the cantilever layer enclosure protection device further includes a protective plate, which is vertically disposed on the support base plate and is used to enclose and protect the upper part of the support base plate and the bottom of the scaffold.

[0013] In some embodiments of this application, the protective plate is located on the side of the safety net away from the building platform.

[0014] In some embodiments of this application, the protective plate includes a first protective plate and a second protective plate, both of which are vertically disposed on the supporting base plate. The first protective plate is disposed parallel to the safety net, and the two second protective plates are disposed at opposite ends of the first protective plate and are both perpendicular to the safety net, so as to enclose a protective area with an opening near the building platform on the supporting base plate.

[0015] In some embodiments of this application, multiple enclosure plates are connected to each other by locking elements, which include at least one of bolts, screws, and pins.

[0016] In some embodiments of this application, the connecting crossbar assembly includes a first connecting crossbar and a second connecting crossbar, which are perpendicularly connected to each other, and both the first connecting crossbar and the second connecting crossbar are connected to each supporting vertical bar.

[0017] In some embodiments of this application, there are multiple first connecting crossbars, which are connected end to end to form a first long bar. The first long bar is divided into two groups and spaced apart. Both groups of first long bars are arranged parallel to the edge line of the building platform. There are multiple second connecting crossbars, and the two ends of each second connecting crossbar are connected to the two groups of first long bars respectively. Each second connecting crossbar is arranged perpendicular to the edge line of the building platform.

[0018] In some embodiments of this application, the first long rod is connected to the vertical connector by fasteners, including at least one of clamps, wire ropes, cable ties, or buckles.

[0019] In some embodiments of this application, the scaffolding also includes pressure bars, arrayed on support crossbars, which are used to connect adjacent support crossbars.

[0020] According to another aspect of this application, a construction safety frame is also provided. It includes the aforementioned cantilevered layer enclosure protection device.

[0021] This application has the following beneficial effects:

[0022] This application presents a cantilevered layer enclosure and protection device. The device connects to the building platform via supporting horizontal members of the scaffolding. These horizontal members act as supports, and are connected to multiple layers of connecting horizontal member assemblies via supporting vertical members to form the overall scaffolding structure. Simultaneously, vertical connectors are arrayed on the enclosure panels of the enclosure assembly, connecting to the bottom layer of the scaffolding's connecting horizontal member assembly. This eliminates the need for additional supporting components, simplifying the structure and reducing the device's weight. Furthermore, the enclosure panels connect to form an integral supporting base plate, eliminating the need for on-site cutting and allowing for direct assembly. This reduces reliance on workers' experience in cutting and adjusting, lowering labor costs, shortening the cycle time, facilitating reuse, increasing component reusability, and further reducing construction and procurement costs.

[0023] This application relates to a construction safety frame. It also possesses the aforementioned beneficial effects, and further includes reduced material waste through modular splicing design, recyclability, and eliminates the need for repeated procurement and replacement, thus meeting the requirements of green construction.

[0024] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above simultaneously. In addition to the purposes, features, and advantages described above, this application also has other purposes, features, and advantages. The application will be further described in detail below with reference to figures. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the enclosed plate assembly according to a preferred embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the interconnection of the closed plates according to a preferred embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the installation position of the protective plate according to a preferred embodiment of this application;

[0030] Figure 5 This is a schematic diagram of a preferred embodiment of the present application applied to a multi-story building platform.

[0031] Legend: 100, scaffolding; 101, supporting horizontal bar; 102, pressure bar; 103, supporting vertical bar; 104, first connecting horizontal bar; 105, second connecting horizontal bar; 200, enclosure panel assembly; 201, enclosure panel; 202, vertical connector; 203, locking component; 300, safety net; 400, protective plate; 500, construction platform. Detailed Implementation

[0032] The embodiments of this application are described in detail below with reference to the accompanying drawings; however, this application may be implemented in a variety of different ways as defined and covered below.

[0033] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application; Figure 2 This is a schematic diagram of the structure of the enclosed plate assembly according to a preferred embodiment of this application; Figure 3 This is a schematic diagram of the interconnection of the closed plates according to a preferred embodiment of this application; Figure 4 This is a schematic diagram of the installation position of the protective plate according to a preferred embodiment of this application; Figure 5 This is a schematic diagram of a preferred embodiment of the present application applied to a multi-story building platform.

[0034] A cantilever floor enclosure protection device includes scaffolding 100, enclosure panel assembly 200, and safety net 300. The scaffolding 100 includes supporting horizontal bars 101, supporting vertical bars 103, and connecting horizontal bar assembly. The first end of the supporting horizontal bar 101 is used to connect to the building platform 500, and the second end of the supporting horizontal bar 101 is used to extend out of the building platform 500 and connect to the supporting vertical bar 103. Multiple supporting horizontal bars 101 are provided and arranged in an array. Multiple supporting vertical bars 103 are provided and arranged in an array. The supporting vertical bars 103 are interconnected by a multi-layer connecting horizontal bar assembly.

[0035] The enclosed panel assembly 200 includes an enclosed panel 201 and vertical connectors 202. The enclosed panel 201 is provided in multiple pieces, and the multiple enclosed panels 201 are connected in sequence to form a whole support base plate. Each enclosed panel 201 is provided with multiple vertical connectors 202. The multiple vertical connectors 202 are arranged in a vertical array on each enclosed panel 201, and the multiple vertical connectors 202 are connected to the bottommost connecting crossbar assembly.

[0036] Safety net 300 is installed on the side of scaffold 100 away from building platform 500, and the bottom end of safety net 300 is connected to the supporting base plate.

[0037] Here, "vertical connector 202" refers to a structure vertically mounted on the enclosure plate 201. In some embodiments, the vertical connector 202 is a hollow tube structure, which can further reduce the overall weight of the enclosure plate assembly 200. Specifically, the vertical connector 202 is connected to the upper surface of the enclosure plate 201 by welding or bolting.

[0038] Here, "enclosure panel 201" refers to a plate-like structure that encloses and supports the bottom of the scaffolding 100. In some embodiments, the enclosure panel 201 is a metal sheet other than wood or bamboo panels, preferably a color steel plate. The color steel plate is a standard prefabricated component that can be assembled by horizontally connecting it with bolts, eliminating the need for on-site cutting or welding, thus significantly shortening the construction period. Although the initial investment is higher, the color steel plate has a long lifespan and low maintenance costs, resulting in better long-term economic benefits than the multiple purchases and replacements of wooden panels. Traditional wooden panels require on-site processing, which is inefficient and relies on manual experience. Furthermore, the standardized color steel plate can be disassembled and reused multiple times, while wooden panels are easily damaged and have a low reuse rate. The high strength of the color steel plate, combined with the vertical steel pipe support system, can effectively resist the impact of falling objects from heights, providing far superior protection compared to wooden panels.

[0039] It should be noted that in previous cantilever floor protection methods, wooden baffles were installed on the cantilever floor. While this could prevent falling objects from heights to some extent, wooden baffles have poor durability, poor overall integrity when spliced ​​together, and require frequent replacement, increasing maintenance costs. Furthermore, the installation process of wooden baffles is complex, requiring significant manpower and resources, and the heavy materials may place additional strain on the cantilever structure. The limited strength of wooden baffles makes them unable to fully withstand the impact of large or high-speed falling objects, resulting in limited protective effectiveness. Therefore, the use of engineered wood panels has been eliminated in the enclosure panel 201 of this application.

[0040] This application connects the supporting horizontal bars 101 of the scaffolding 100 to the building platform 500. The supporting horizontal bars 101 serve as supports, and are connected to multiple layers of connecting horizontal bar assemblies via supporting vertical bars 103 to form the scaffolding 100 as a whole. Simultaneously, vertical connectors 202 are arrayed on the closed plates 201 of the closed plate assembly 200, connecting to the bottommost connecting horizontal bar assembly of the scaffolding 100. This eliminates the need for additional supporting components, simplifying the structure and reducing the device's weight. Furthermore, the closed plates 201 are interconnected to form an integral supporting base plate, allowing for direct assembly without on-site cutting. This reduces reliance on workers' experience in cutting and adjusting, lowering labor costs, shortening the cycle time, facilitating reuse, increasing the reusability of components, and further reducing construction procurement costs.

[0041] In addition, this application provides overall protection for the scaffold 100 and the enclosed panel assembly 200 by means of a safety net 300 on the side of the scaffold 100 away from the building platform 500. The safety net 300 is preferably a lightweight protective net to avoid adding extra weight to the overall protective device and to facilitate the height arrangement of the scaffold 100.

[0042] Preferably, please refer to Figure 4 and 5 As shown, the cantilever layer enclosure protection device also includes a protective plate 400, which is vertically installed on the support base plate. The protective plate 400 is used to enclose and protect the upper part of the support base plate and the bottom of the scaffold 100.

[0043] Understandably, by setting up the protective plate 400, small tools or fragments can be prevented from falling through the edge gaps of the closed plate 201, and the potential hazards of gaps easily left in traditional wooden baffles can also be addressed.

[0044] In this preferred embodiment, please refer to Figure 4 As shown, the protective plate 400 is located on the side of the safety net 300 away from the building platform 500.

[0045] Understandably, the protective plate 400 is located on the outermost layer away from the building platform 500. The protective plate 400 can simultaneously shield and protect the safety net 300 and the bottom of the scaffolding 100, as well as protect the supporting base plate, thus achieving a good protective effect and also helping to improve the overall wind load resistance of the device.

[0046] In addition, since the protective plate 400 is located on the outermost layer away from the building platform 500, DIY safety slogans can be pasted or painted on the outer surface of the protective plate 400, which facilitates standardized management of the construction site. When the enclosure plate 201 is made of color steel plate, the protective plate 400 can be made of the same color steel plate as the enclosure plate 201, which helps to ensure the overall appearance of the protective device is neat. However, wooden baffles are of different specifications and can easily affect the image of the construction site.

[0047] It should be noted that the protective plate 400 preferably uses multiple pieces spliced ​​together with bolts to form a single long plate, which allows for easy length adjustment to adapt to different working conditions.

[0048] Optionally, the protective plate 400 includes a first protective plate and a second protective plate, both of which are vertically disposed on the supporting base plate. The first protective plate is disposed parallel to the safety net 300, and the two second protective plates are disposed at opposite ends of the first protective plate and are both vertically disposed relative to the safety net 300, so as to enclose a protective area with an opening on the side of the building platform 500 on the supporting base plate.

[0049] Understandably, the protective plate 400 consists of three pieces, which are connected perpendicularly to each other in sequence. They are arranged on the support base plate except for the side near the building platform 500, thereby forming a protective area with an opening on the side near the building platform 500 on the support base plate. This can enhance the protection of the upper part of the support base plate from multiple sides and prevent tools or other foreign objects from falling from the edge of the support base plate.

[0050] Preferably, please refer to Figure 3 As shown, multiple closed plates 201 are connected to each other by locking members 203, which include at least one of bolts, screws and pins.

[0051] Understandably, the closed panels 201 are interconnected via locking components 203, enabling rapid assembly. Rapid erection is achieved through modular, segmented assembly, and the entire construction process utilizes bolted connections, eliminating traditional welding operations. This design features reversible construction characteristics, embodying the concept of green construction.

[0052] Specifically, the side of the enclosure plate 201 is provided with an overlapping part, and the overlapping part is provided with a screw hole, so that adjacent enclosure plates 201 can be spliced ​​by bolts or screws. Alternatively, a protrusion or ridge can be provided on the side of the enclosure plate 201 so that the protrusions or ridges of adjacent enclosure plates 201 can be connected to each other and fastened by bolts or screws.

[0053] In some embodiments, the enclosure panel 201 is made of color steel plate. Specifically, the material is selected to meet the requirements for strength, corrosion resistance, and impact resistance. The thickness is 10mm, effectively resisting the impact of falling objects from heights. The gaps between panels are ≤3mm, and toe boards are installed and sealed at the edges. Lightning protection grounding measures are also implemented, and the panel is painted with colored paint. The high strength of the color steel plate, combined with the vertical connector 202 and the connecting horizontal bar assembly of the scaffolding 100, effectively resists the impact of falling objects from heights, providing far superior protection compared to wooden panels.

[0054] Preferably, please refer to Figure 1 As shown, the connecting crossbar assembly includes a first connecting crossbar 104 and a second connecting crossbar 105. The first connecting crossbar 104 and the second connecting crossbar 105 are connected perpendicularly to each other, and both the first connecting crossbar 104 and the second connecting crossbar 105 are connected to each supporting vertical bar 103.

[0055] In this preferred embodiment, there are multiple first connecting crossbars 104, which are connected end to end to form a first long bar. The first long bar is divided into two groups and spaced apart. Both groups of first long bars are arranged parallel to the edge line of the building platform 500. There are multiple second connecting crossbars 105, and the two ends of each second connecting crossbar 105 are respectively connected to the two groups of first long bars. Each second connecting crossbar 105 is arranged perpendicular to the edge line of the building platform 500.

[0056] It is understandable that the first connecting horizontal bar 104 and the second connecting horizontal bar 105 are arranged perpendicularly to each other to form a frame shape, and then connected to the supporting vertical bar 103 to form the main frame of the scaffold 100. The connecting horizontal bar assembly has multiple layers, and the number of layers can be arranged according to the overall height of the scaffold 100 to ensure the overall strength and stability of the scaffold 100 and adapt to the construction needs of building platforms 500 with different layers.

[0057] Preferably, please refer to Figure 1 As shown, the first long rod is connected to the vertical connector 202 by fasteners, which include at least one of clamps, wire ropes, cable ties or buckles.

[0058] Understandably, the closed panel assembly 200 is connected to the first long pole via the vertical connector 202 on the closed panel 201 through fasteners. The overall tensile force of the scaffolding 100 is used to improve the load-bearing performance of the color steel plate. This design avoids the need for additional support structures, reducing material usage and construction complexity.

[0059] Preferably, please refer to Figure 1 As shown, the scaffolding 100 also includes pressure bars 102, which are arranged in an array on the support crossbars 101. The pressure bars 102 are used to connect adjacent support crossbars 101.

[0060] It is understandable that the pressure bar 102 can strengthen the connection stability of the horizontal bar 101, and can also be used as a support point for the vertical bar 103 to achieve a layered support effect and ensure the stability of the support structure.

[0061] According to another aspect of this application, a construction safety frame is also provided. It includes the aforementioned cantilevered layer enclosure protection device.

[0062] In one specific embodiment of the construction safety frame used in this application, the installation sequence is as follows:

[0063] ① Construction preparation and surveying positioning

[0064] Inspect the quality of materials such as the enclosure panel 201 (preferably made of color steel plate), vertical connectors 202, and bolts to ensure there is no deformation or damage. Erect scaffolding 100 and inspect its stability. Measure and lay out the lines according to the plan, marking the installation positions and connection points of the color steel plates.

[0065] ② Erection and temporary fixing of color steel plates

[0066] Use tower cranes or lifting equipment to hoist the color steel plates to the designed location, and initially fix them with temporary supports or ropes to prevent tilting.

[0067] ③ Installation of vertical load-bearing system

[0068] Align the vertical connector 202 on the color steel plate with the first connecting horizontal bar 104 of the scaffold 100, connect them with fasteners, and tighten them in stages. Adjust the verticality of the color steel plate and fix it by pulling it up with the tension of the first connecting horizontal bar 104 of the scaffold 100 to ensure that the overall force is evenly distributed.

[0069] ④ Horizontal integral connection

[0070] After adjacent color steel panels are in place, they are horizontally connected by bolts to form a continuous whole. Anti-loosening washers must be added to the bolts, the torque must meet the standard, and sealant can be filled at the joints to enhance airtightness.

[0071] ⑤ Installation of edge fall arresters

[0072] A protective plate 400 of the same material as the enclosure plate 201 is added to the outer edge of the structure as a fall arrestor, and is fixed to the side of the color steel plate with bolts.

[0073] ⑥ Comprehensive inspection and reinforcement

[0074] Check the tightness of each vertical fastener / bolt, horizontal joint, and fall arrestor plate, paying particular attention to areas of stress concentration. Adjust the flatness of the color steel plate, remove installation residue, and repair any damaged coating.

[0075] In summary, the construction safety frame proposed in this application improves safety and offers higher construction efficiency and convenience. Although the initial investment is higher, the long lifespan and low maintenance cost of the color steel plates result in better long-term economic benefits than the multiple purchases and replacements of wooden baffles, leading to a lower overall cost. Furthermore, the protective effect is upgraded, with better overall airtightness. The horizontal bolted connections form a continuous closed surface, completely eliminating protective gaps caused by the splicing seams of traditional wooden baffles. Compared to wooden baffles, which are prone to moisture and warping, and whose protective effect decreases over time, the rigid structure of the 201 color steel plate enclosure is not easily bent or deformed and can maintain its flatness even after long-term use.

[0076] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0077] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make various improvements, modifications, or variations without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered as protected by this application.

Claims

1. A cantilevered layer closure guard, characterized in that, The overhanging layer closing protection device comprises a scaffold (100), a closing plate assembly (200) and a safety net (300), the scaffold (100) comprises support crossbars (101), support vertical bars (103) and connecting crossbar assemblies, the first end of the support crossbar (101) is used for being connected with a building platform (500), the second end of the support crossbar (101) is used for extending outside the building platform (500) and being connected with the support vertical bar (103), the support crossbar (101) is provided with a plurality of support crossbars (101), the plurality of support crossbars (101) are arranged in an array, the support vertical bar (103) is provided with a plurality of support vertical bars (103), the plurality of support vertical bars (103) are arranged in an array, and the support vertical bars (103) are connected with each other through a plurality of connecting crossbar assemblies. The closing plate assembly (200) comprises closing plates (201) and vertical connecting pieces (202), the closing plate (201) is provided with a plurality of closing plates (201), the plurality of closing plates (201) are sequentially connected to form an integral support bottom plate, each closing plate (201) is provided with a plurality of vertical connecting pieces (202), the plurality of vertical connecting pieces (202) are vertically arranged on each closing plate (201), and the plurality of vertical connecting pieces (202) are connected with the connecting crossbar assembly of the bottom layer. The safety net (300) is arranged on the side, away from the building platform (500), of the scaffold (100), and the bottom end of the safety net (300) is connected with the support bottom plate.

2. A cantilevered layer closure guard according to claim 1, wherein, The overhanging layer closing protection device further comprises a protection plate (400), the protection plate (400) is vertically arranged on the support bottom plate, and the protection plate (400) is used for enclosing and protecting the upper part of the support bottom plate and the bottom part of the scaffold (100).

3. A cantilevered layer closure guard according to claim 2, wherein, The protection plate (400) is located on the side, away from the building platform (500), of the safety net (300).

4. The overhang enclosure guard of claim 2, wherein, The protection plate (400) comprises a first protection plate and a second protection plate, both of which are vertically arranged on the support bottom plate, the first protection plate is arranged in parallel with the safety net (300), and the two second protection plates are arranged at opposite ends of the first protection plate and are arranged perpendicularly to the safety net (300), so as to enclose a protection area on the support bottom plate, the protection area being open on the side close to the building platform (500).

5. The overhang enclosure guard of claim 1, wherein, The plurality of closing plates (201) are connected with each other through a locking piece (203), and the locking piece (203) comprises at least one of a bolt, a screw rod and a pin.

6. The overhang enclosure guard of claim 1, wherein, The connecting crossbar assembly comprises a first connecting crossbar (104) and a second connecting crossbar (105), the first connecting crossbar (104) and the second connecting crossbar (105) are connected perpendicularly with each other, and the first connecting crossbar (104) and the second connecting crossbar (105) are connected with the support vertical bars (103).

7. A cantilevered layer closure guard according to claim 6, wherein, The first connecting crossbar (104) is provided with a plurality of first connecting crossbars (104), the plurality of first connecting crossbars (104) are connected head to tail to form a first long bar, the first long bar is divided into two groups and arranged in an interval, the two groups of first long bars are arranged in parallel with the edge line of the building platform (500), the second connecting crossbar (105) is provided with a plurality of second connecting crossbars (105), the two ends of each second connecting crossbar (105) are connected with the two groups of first long bars, and each second connecting crossbar (105) is arranged perpendicularly to the edge line of the building platform (500).

8. A cantilevered layer closure guard according to claim 7, wherein, The first long rod is connected to the vertical connecting member (202) by a fastener comprising at least one of a clamp, a wire, a tie, or a carabiner.

9. The overhang enclosure guard of claim 1, wherein, The scaffold (100) further comprises compression bars (102) arranged in an array on the support ledgers (101), the compression bars (102) for connecting adjacent support ledgers (101).

10. A construction protection frame, characterized in that, A cantilevered floor enclosure comprising the cantilevered floor enclosure guard of any one of claims 1-9.

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