Building outer frame cantilever device with pulling protection function

Abstract

The application discloses a building outer frame cantilever device with a pulling protection function, which is characterized in that the surface of the lower floor plate is uniformly provided with a plurality of cantilever horizontal rods, the outer end of the cantilever horizontal rod extends out of the outer side of the lower floor plate, a cross brace is fixed between the upper surfaces of the outer ends of the cantilever horizontal rods, and the scaffold is arranged between the cross braces; the main beam of the upper floor plate is uniformly provided with a plurality of rope penetrating holes, the number of the rope penetrating holes is the same as that of the cantilever horizontal rods and the positions of the rope penetrating holes correspond to those of the cantilever horizontal rods one by one, and a protection rope is connected between the corresponding rope penetrating holes and the protection rope; and the cantilever horizontal rods are locked on the surface of the floor plate through the combination of the screw rod and the pressing plate, so that the scaffold can be provided with powerful and reliable auxiliary supporting force; and the safety protection is formed by connecting the protection rope between the main beam of the upper floor plate and the outer end of the cantilever horizontal rod, so that the serious safety accidents caused by the falling of the scaffold due to the loss of the supporting force of the cantilever horizontal rod caused by the unexpected situation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a cantilevered scaffolding device with tension protection function. Background Technology

[0002] Construction scaffolding is an important construction tool in building projects. It primarily provides a platform for construction workers, solves vertical and horizontal transportation problems, and also provides support and protection for the building structure. Using steel pipes as the main material and connected by fasteners, it features high load-bearing capacity, good stability, and durability.

[0003] When erecting scaffolding, connectors are usually used to establish connections to assist in supporting the scaffolding and improve its safety and stability. For example, the invention patent with application number CN2008100993659 discloses a wall connector for scaffolding and a method for erecting a coupler-type steel pipe scaffolding. The steel bars of the connectors are fixed to the steel reinforcement of the building from the outer side of the building or directly embedded in the concrete of the building. This method requires pre-embedding the steel bars of the connectors during the pouring of the building, which affects the construction efficiency of concrete pouring. Alternatively, the anchoring construction of the connectors can be carried out on the outside of the building, which is difficult to operate and poses safety hazards, and needs to be improved. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a cantilevered building scaffolding device with tension protection function.

[0005] The technical solution of this utility model is as follows: a cantilevered scaffolding device with tension protection function, comprising an upper floor slab, a lower floor slab, cantilever crossbars, and protective ropes. The upper and lower floor slabs have the same shape and structure. Several cantilever crossbars are evenly distributed on the surface of the lower floor slab. The cantilever crossbars are I-beams, and their outer ends extend out of the outer surface of the lower floor slab. Horizontal bracing rods, also I-beams, are fixed between the upper surfaces of the outer ends of the cantilever crossbars. Their dimensions are the same as those of the cantilever crossbars. The scaffolding is erected between the horizontal bracing rods. Several rope holes are evenly distributed on the main beam of the upper floor slab. Plastic sleeves can be inserted into the rope holes to improve the passage of ropes. The number of rope holes is the same as the number of cantilever crossbars, and their positions correspond one-to-one. Protective ropes are connected between the corresponding upper and lower rope holes and the protective ropes.

[0006] Preferably, the upper end of the protective rope is provided with an upper annular sleeve, which is fitted into the rope hole, and the lower end is provided with a lower annular sleeve. The upper annular sleeve and the lower annular sleeve are both fixed and locked to the rope body by U-shaped locks, and the lower annular sleeve is fitted onto the end of the cantilever crossbar.

[0007] Preferably, the bottom surface of the outer end of the cantilever crossbar is provided with a limiting rib, which is welded and fixed to the cantilever crossbar, and the lower annular sleeve contacts the outer surface of the limiting rib.

[0008] Preferably, the limiting ribs are arranged along the width direction of the cantilever crossbar, and the length direction of the limiting ribs is consistent with the width direction of the cantilever crossbar, thereby increasing the contact area between the limiting ribs and the cantilever crossbar and thus improving its limiting support strength.

[0009] Preferably, a wooden pad is provided between the inner end of the cantilever crossbar and the lower floor slab. The length direction of the wooden pad is consistent with the width direction of the cantilever crossbar. Vertical screws anchored in the lower floor slab are provided on both sides of the cantilever crossbar. Pressure plates are fitted on the upper ends of the two vertical screws. The pressure plates press the entire upper surface of the cantilever crossbar. Nuts are provided on the upper part of the vertical screws and pressed against the surface of the pressure plates.

[0010] Preferably, a wooden upper pad is provided between the pressure plate and the upper surface of the cantilever crossbar, and the size of the wooden upper pad matches the size of the upper surface of the cantilever crossbar.

[0011] Preferably, the contact portion between the cantilever crossbar and the edge of the lower floor slab is provided with two vertical screws, and a pressure plate is provided between the upper ends of the two vertical screws. Both ends of the pressure plate are provided with through holes, which are connected between the two vertical screws and allow the tube to slide along the vertical screws. A nut is provided on the upper part of the vertical screw to press the pressure plate. A wooden pad is provided between the pressure plate and the cantilever crossbar, and the wooden pad is located between the two vertical screws.

[0012] The beneficial technical effects of this utility model are:

[0013] (1) This utility model sets up a cantilevered crossbar inside the floor slab and locks the cantilevered crossbar to the surface of the floor slab by a combination of screw and pressure plate. By setting up a wooden pad, a concave deformation can be generated to increase the locking force of the locking component on the cantilevered crossbar, which can provide a strong and reliable auxiliary support for the scaffolding. Furthermore, it has the advantage of high safety when performing installation work inside the floor slab, thus ensuring construction safety.

[0014] (2) This utility model forms a safety protection by connecting a protective rope between the main beam of the upper floor slab and the outer end of the cantilever crossbar, so as to avoid serious safety accidents such as the scaffold falling due to the loss of support of the cantilever crossbar in case of accidents. Attached Figure Description

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point a;

[0017] Figure 3yes Figure 1 Enlarged view of point b;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 5 This is the second three-dimensional structural schematic diagram of this utility model.

[0020] In the diagram, 1. Upper floor slab, 11. Main beam, 111. Rope hole, 2. Lower floor slab, 3. Cantilever crossbar, 31. Horizontal brace, 32. Limiting bar, 4. Protective rope, 41. Upper ring sleeve, 42. Lower ring sleeve, 5. Scaffolding, 61. Wooden lower pad, 62. Wooden upper pad, 63. Vertical screw, 64. Nut, 65. Pressure plate, 71. Vertical screw, 72. Pressure plate, 73. Nut, 74. Wooden pad. Detailed Implementation

[0021] Example 1, see appendix Figure 1 , 4 -5, a cantilevered scaffolding device with tension protection function, comprising an upper floor slab 1, a lower floor slab 2, cantilever crossbars 3, and protective ropes 4. Several cantilever crossbars 3 are evenly distributed on the surface of the lower floor slab 2. The outer ends of the cantilever crossbars 3 extend beyond the outer side of the lower floor slab 2, and the length of the extension is determined according to the position and size of the scaffolding 5. Horizontal bracing rods 31 are fixed between the upper surfaces of the outer ends of the cantilever crossbars 3, forming a support platform to support the scaffolding 5. The scaffolding 5 is erected between the horizontal bracing rods 31. Several rope holes 111 are evenly distributed on the main beam 11 of the upper floor slab 1. The size of the rope holes 111 is slightly larger than the size of the protective ropes 4. The rope holes 111 vertically penetrate the main beam 11. The number of rope holes 111 is the same as the number of cantilever crossbars 3, and their positions correspond one-to-one. Protective ropes 4, which are steel wire ropes, are connected between the corresponding upper and lower rope holes 111 and the protective ropes 4.

[0022] The upper end of the protective rope 4 is provided with an upper annular sleeve 41, which is fitted into the rope hole 111. The lower end is provided with a lower annular sleeve 42, which is fitted onto the end of the cantilever crossbar 3. The annular sleeve connection structure can withstand strong pulling force and avoid the phenomenon that the end of the protective rope 4 is pulled off due to accidental situations.

[0023] The protective rope 4 forms a safety protection on the cantilevered crossbar 3. When an accident occurs that causes the cantilevered crossbar 3 to lose its support, the protective rope 4 can pull the cantilevered crossbar 3 to prevent the serious safety accident of the scaffolding 5 falling due to the loss of support of the cantilevered crossbar 3.

[0024] The bottom surface of the outer end of the cantilever crossbar 3 is provided with a limiting rib 32. The lower annular sleeve 42 contacts the outer surface of the limiting rib 32. The limiting rib 32 is arranged along the width direction of the cantilever crossbar 3. The length direction of the limiting rib 32 is consistent with the width direction of the cantilever crossbar 3. Furthermore, the length of the limiting rib 32 is greater than the width of the lower annular sleeve 42, which can effectively block the lower annular sleeve 42 and prevent it from sliding inward along the cantilever crossbar 3 and losing its hook-up protection position.

[0025] In this embodiment, a cantilevered crossbar 3 is installed inside the floor slab, and the cantilevered crossbar 3 is locked to the surface of the floor slab by a combination of screws and pressure plates 65. This provides strong and reliable auxiliary support for the scaffolding 5, and the installation work inside the floor slab has the advantage of high safety, ensuring construction safety.

[0026] Example 2, see appendix Figure 1-3 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that: a wooden lower pad 61 is provided between the inner end of the cantilever crossbar 3 and the lower floor slab 2; vertical screws 63 anchored in the lower floor slab 2 are provided on both sides of the cantilever crossbar 3; pressure plates 65 are fitted on the upper ends of the two vertical screws 63; nuts 64 are provided on the upper part of the vertical screws 63 and pressed against the surface of the pressure plate 65; and a wooden upper pad 62 is provided between the pressure plate 65 and the upper surface of the cantilever crossbar 3.

[0027] In this embodiment, by tightening the nut 64 downwards to press the pressure plate 65, the pressure plate 65 is pressed tightly onto the surface of the wooden upper pad 62. The wooden upper pad 62 applies a clamping force to the cantilever crossbar 3, pressing the cantilever crossbar 3 onto the wooden lower pad 61 placed on the floor slab, thereby locking the cantilever crossbar 3 to the surface of the floor slab. By setting the wooden pad, it can produce a concave deformation when subjected to clamping force, increasing the friction between the cantilever crossbar 3 and the floor slab, and further improving the locking and fixing force of the cantilever crossbar 3.

[0028] Two vertical screws 63 are provided at the contact point between the cantilever crossbar 3 and the edge of the lower floor slab 2. A pressure plate 65 is provided between the upper ends of the two vertical screws 63. Nuts 64 are provided on the upper part of the vertical screws 63 to press the pressure plate 65. A wooden pad 74 is provided between the pressure plate 65 and the cantilever crossbar 3. The fixing and locking structure between the cantilever crossbar 3 and the edge of the lower floor slab 2 is the same as the locking structure at the inner end and the resulting technical effect is the same, and will not be described again.

Claims

1. A cantilevered scaffolding device for buildings with tension protection function, characterized in that: It includes an upper floor slab, a lower floor slab, cantilevered crossbars, and safety ropes; several cantilevered crossbars are evenly distributed on the surface of the lower floor slab, with the outer ends of the cantilevered crossbars extending beyond the outer side of the lower floor slab. Horizontal bracing is fixed between the upper surfaces of the outer ends of the cantilevered crossbars, and the scaffolding is erected between the horizontal bracing. Several rope holes are evenly distributed on the main beam of the upper floor slab, with the number of rope holes being the same as the number of cantilevered crossbars and their positions corresponding one-to-one. Safety ropes are connected between the corresponding upper and lower rope holes and the safety ropes.

2. The cantilevered scaffolding device with tension protection function according to claim 1, characterized in that: The upper end of the protective rope is provided with an upper annular sleeve, which fits into the rope hole, and the lower end is provided with a lower annular sleeve, which fits onto the end of the cantilever crossbar.

3. A cantilevered scaffolding device with tension protection function according to claim 2, characterized in that: The bottom surface of the outer end of the cantilever crossbar is provided with a limiting rib, and the lower annular sleeve contacts the outer surface of the limiting rib.

4. A cantilevered building scaffolding device with tension protection function according to claim 3, characterized in that: The limiting ribs are arranged along the width direction of the cantilever crossbar, and the length direction of the limiting ribs is consistent with the width direction of the cantilever crossbar.

5. A cantilevered building scaffolding device with tension protection function according to claim 1, characterized in that: A wooden pad is provided between the inner end of the cantilever crossbar and the lower floor slab. Vertical screws anchored in the lower floor slab are provided on both sides of the cantilever crossbar. Pressure plates are fitted on the upper ends of the two vertical screws, and nuts are provided on the upper part of the vertical screws and pressed against the surface of the pressure plates.

6. A cantilevered scaffolding device with tension protection function according to claim 5, characterized in that: A wooden upper pad is provided between the upper surfaces of the pressure plate and the cantilever crossbar.

7. A cantilevered building scaffolding device with tension protection function according to claim 1, characterized in that: Two vertical screws are provided at the contact point between the cantilever crossbar and the edge of the lower floor slab. A pressure plate is provided between the upper ends of the two vertical screws. A nut is provided on the upper part of the vertical screw to press the pressure plate. A wooden pad is provided between the pressure plate and the cantilever crossbar.

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