Anti-falling device for attached lifting scaffold

Abstract

The anti-falling device comprises a steel frame, a steel plate, a fastener and a steel wire rope, the lower plate face of the steel plate is attached and fixed to the upper surface of the steel frame, and one side of the upper plate face of the steel plate is hinged to a scaffold board of the attached lifting scaffold; the fastener is fixed to the side, away from the scaffold board, of the steel plate. One end of the steel wire rope is fixed with the fastener, and the other end is fixed with the top end of the vertical rod of the attached lifting scaffold. According to the anti-falling device provided by the utility model, the steel plate and the steel frame form the turning plate, and the turning plate covers the main body structure, so that the accidents of object falling and personnel falling can be prevented; the turnover plate can be folded by pulling up the steel wire rope before climbing of the attached lifting scaffold, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction safety protection, and more specifically to an anti-falling device for an attached lifting scaffold. Background Art

[0002] The attached lifting scaffold is a kind of high-rise building external protective scaffolding with its own lifting power, which slowly climbs or descends along the facade of the building structure. It mainly includes wall-attached supports, guide rails and protective frames, lifting systems and control systems, etc. It turns high-altitude operations into low-altitude operations, and turns suspended operations into operations inside the frame. It is divided into integral and segmented types, and has significant low-carbon, high-tech content, and is more economical, safer, and more convenient.

[0003] In recent years, with the rapid development of urbanization, the number of high-rise building projects has increased significantly. Attached lifting scaffolding is widely used in construction due to its low carbon, economical, safe, anti-overturning and anti-falling characteristics. Due to the need for reasonable construction space, there is a certain distance between the scaffolding board and the edge of the main structure and the edge of the cantilever structure. Therefore, the flap component is born, and the function of the flap is to prevent people and materials from falling.

[0004] Since the building structure may also change in standard floors, for example, the exterior eaves structure and length of odd-numbered floors and even-numbered floors are different. In this case, ordinary flaps cannot meet the construction requirements, facing problems such as insufficient length, and there are risks in terms of safety. At present, the flaps of attached lifting scaffolds are relatively thin and are not suitable for standard-story buildings with structural changes. Safety cannot be fully guaranteed, resulting in safety hazards and risks, while affecting construction efficiency.

[0005] Therefore, how to provide a fall prevention device for an attached lifting scaffold, improve the safety performance of the attached lifting scaffold flap, and adapt to changes in the outer eaves structure and length of the standard layer of the main structure is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0006] In view of this, the utility model provides an anti-falling device for an attached lifting scaffold, aiming to solve the above technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A fall prevention device for an attached lifting scaffold, comprising:

[0009] Steel frame,

[0010] A steel plate, wherein the lower plate surface of the steel plate is fixedly attached to the upper surface of the steel frame, and one side of the upper plate surface of the steel plate is hinged to the scaffolding board of the attached lifting scaffolding;

[0011] A fastener, the fastener being fixed to a side of the steel plate away from the scaffolding board;

[0012] A steel wire rope, one end of which is tied and fixed to the fastener, and the other end of which is tied and fixed to the top end of the vertical pole of the attached lifting scaffold.

[0013] The beneficial effect of the above technical solution is that when the attached lifting scaffold is in use, the steel wire rope is loosened so that the flap formed by the steel plate and the steel frame is in a horizontal state, and the flap covers the main structure, which can prevent objects from falling and people from falling accidents; the steel wire rope can be pulled up before the attached lifting scaffold climbs, and the flap is in a vertical state, providing sufficient space for the attached lifting scaffold to climb. After the climbing is completed, the steel wire rope can be loosened to play a safety protection role.

[0014] Preferably, the steel frame is welded from square tubes, including transverse tubes and longitudinal tubes. The number of transverse tubes is two and they are arranged symmetrically. The number of longitudinal tubes is multiple and they are arranged perpendicular to the transverse tubes. The multiple longitudinal tubes are evenly arranged between the two transverse tubes, and their two ends are respectively fixed to the two side walls opposite to the two transverse tubes. The transverse rod is used to fix the steel plate, and the longitudinal tube is used as the back rib of the steel plate to provide sufficient load-bearing capacity for the steel plate.

[0015] Preferably, the distance between the two transverse tubes is the distance between the outer wall of the attached lifting scaffold and the structure, the steel plate completely covers the upper surface of the steel frame, and the axis of the transverse tube is parallel to the length direction of the scaffolding board. It is ensured that the flap can completely cover the gap between the attached lifting scaffold and the main structure, thereby improving the safety factor during the operation.

[0016] Preferably, the number of the fasteners is multiple and they are made of screws, the screws are evenly distributed along the side of the steel plate away from the upper surface of the scaffolding board, the screws have nuts and bolts, the nuts are fixed to the upper surface of the steel plate, the screws are arranged perpendicular to the upper surface of the steel plate and one end away from the nut is provided with a through hole, one end of the steel wire rope is wound around the through hole and fastened to the bolt. By using the screw with holes to tie the steel wire rope, the steel wire rope can reduce the load brought by the flap and play a fixing role at the same time.

[0017] Preferably, the steel plate is hinged to the scaffolding board by a plurality of hinges, and the length of the steel plate is the same as the length of the scaffolding board. The steel plate and the scaffolding board are hinged to each other by hinges, and a 90° folding can be achieved between the steel plate and the scaffolding board.

[0018] Preferably, the steel plate includes a first steel plate and a second steel plate, wherein the first steel plate is fixed to the upper surface of the steel frame near the scaffolding board, and the panel of the second steel plate is slidably connected to the panel of the steel plate near the scaffolding board. When the gap between the attached lifting scaffolding and the main structure changes, the width of the flap is adjusted by relative sliding of the two steel plates to ensure that the steel plate completely covers the gap between the attached lifting scaffolding and the main structure.

[0019] Preferably, a limit card is provided between the panels of the two steel plates. The limit card limits the relative sliding between the two steel plates, ensuring that the gap between the attached lifting scaffold and the main structure is completely covered during the operation, and no empty surface will appear during the operation due to the relative sliding of the two steel plates.

[0020] Preferably, the diameter of the steel wire rope is not less than 6.2 mm, and the breaking force is not less than 20 KN. The number of steel wire ropes is equal to the number of fasteners. The steel wire ropes provide sufficient tension during the use of the flap, and when an accident occurs, the flap will not break due to the breakage of the steel wire rope, causing a safety accident.

[0021] Preferably, the thickness of the steel plate is not less than 6 mm, so as to ensure that the steel plate has a certain strength and will not be penetrated by falling objects.

[0022] Preferably, the cross-sectional size of the square tube is not less than 20*20 mm, and the wall thickness is not less than 3 mm. The steel frame composed of square tubes serves as the keel support of the flap and has sufficient bearing capacity.

[0023] It can be seen from the above technical scheme that, compared with the prior art, the utility model discloses a fall prevention device for an attached lifting scaffold. When the attached lifting scaffold faces changes in the standard layers of the main structure, the fall prevention device can effectively reduce safety hazards during the construction process, prevent the falling of materials and construction personnel, ensure construction safety, and improve work efficiency. The installation and structure are simple, there is no construction complexity, and the installation and disassembly are convenient. The wire rope and the flap can be folded up before lifting, and put down after the lifting is completed. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A side view of the installation of the anti-fall device provided by the utility model;

[0026] Figure 2 for Figure 1 A magnified schematic diagram of part A in FIG.

[0027] Figure 3 A schematic diagram of a steel frame provided by the utility model;

[0028] Figure 4 A schematic diagram of the connection between the flap and the scaffolding provided by the utility model;

[0029] Figure 5 A schematic diagram of the installation of the anti-fall device provided by the utility model;

[0030] Figure 6 for Figure 5 An enlarged schematic diagram of part B in FIG.

[0031] in,

[0032] 1- steel frame; 11- horizontal tube; 12- vertical tube; 2- steel plate; 3- hinge; 4- fastener; 5- steel wire rope; 6- scaffolding board; 7- vertical pole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See attached Figures 1 to 6 The utility model embodiment discloses a fall prevention device for an attached lifting scaffold, comprising:

[0035] Steel frame 1,

[0036] Steel plate 2, the lower plate surface of the steel plate 2 is fitted and fixed on the upper surface of the steel frame 1, and one side of the upper plate surface of the steel plate 2 is hinged to the scaffolding board 6 of the attached lifting scaffolding;

[0037] A fastener 4 is fixed to the upper plate surface of the steel plate 2 away from the scaffolding plate 6;

[0038] A steel wire rope 5, one end of which is tied and fixed to the fastener 4, and the other end of which is tied and fixed to the top end of the vertical pole 7 of the attached lifting scaffold.

[0039] Due to the changes in the building structure at the standard level, when the attached lifting scaffolding encounters these changes, it cannot meet the construction requirements. First, the steel frame structure size is determined according to the span of the main structure and the distance from the attached lifting scaffolding to the main body. Then, steel plates are laid and welded on the upper surface of the steel frame to form a flap. The steel plates and scaffolding boards are hinged, and eye nuts are installed on the other end of the steel plates. Wire ropes are passed through the eye nuts and tied to the vertical poles. Before the attached lifting scaffolding climbs, the wire ropes are pulled up to retract the flap. After the lifting is completed, the wire ropes are lowered and the flap covers the main structure.

[0040] In order to further optimize the above technical solution and ensure that the flap has sufficient strength and supporting force, the steel frame 1 is welded from square tubes, including a transverse tube 11 and a longitudinal tube 12. There are two transverse tubes 11 and they are arranged symmetrically. There are multiple longitudinal tubes 12 and they are arranged perpendicular to the transverse tubes 11. Multiple longitudinal tubes 12 are evenly arranged between the two transverse tubes 11, and their two ends are respectively fixed to the opposite side walls of the two transverse tubes 11.

[0041] In order to further optimize the above technical solution, the flap is capable of covering the gap between the attached lifting scaffolding and the main structure, the distance between the two transverse tubes 11 is the distance between the outer wall of the attached lifting scaffolding and the structure, the steel plate 2 completely covers the upper surface of the steel frame 1, and the axis of the transverse tube 11 is parallel to the length direction of the scaffolding board 6.

[0042] In order to further optimize the above technical solution and ensure that the flap can be easily folded 90°, the steel plate 2 and the scaffolding board 6 are hinged by multiple hinges 3, and the length of the steel plate 2 is the same as the length of the scaffolding board 6.

[0043] In order to further optimize the above technical solution and facilitate the folding and lowering of the flap, there are multiple fasteners 4 made of screws, which are evenly distributed along the side of the steel plate 2 away from the upper surface of the scaffolding board 6. The screws have nuts and bolts, and the nuts are fixed to the upper surface of the steel plate 2. The screws are arranged vertically on the upper surface of the steel plate 2 and a through hole is provided at one end away from the nut. One end of the steel wire rope 5 is wrapped around the through hole and fastened with the bolt.

[0044] In order to further optimize the above technical solution and ensure sufficient tensile stress of the steel wire rope, the diameter of the steel wire rope 5 is not less than 6.2 mm, and the breaking tension is not less than 20 KN.

[0045] In order to further optimize the above technical solution and ensure the load-bearing capacity of the steel plate, the thickness of the steel plate 2 is not less than 6 mm.

[0046] In order to further optimize the above technical solution, ensure sufficient strength of the flap and meet the lightweight requirements, the cross-sectional size of the square tube shall not be less than 20*20mm and the wall thickness shall not be less than 3mm.

[0047] Embodiment 2:

[0048] The embodiment of the utility model discloses a fall prevention device for an attached lifting scaffold. The difference from embodiment 1 is that the steel plate 2 includes a first steel plate and a second steel plate. The first steel plate is fixed to the upper surface of the steel frame 1 near the scaffolding board 6, and the panel of the second steel plate is slidably connected to the panel of the steel plate 2 near the scaffolding board 6.

[0049] By sliding the second steel plate relative to the first steel plate, the change of the gap between the attached lifting scaffold and the main structure can be adapted to ensure that the flap completely covers the gap.

[0050] In order to further optimize the above technical solution and prevent the second steel plate from sliding relative to the first steel plate during use to produce an empty surface, a limit card is provided between the panels of the two steel plates 2.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fall prevention device for an attached lifting scaffold, characterized in that: include: Steel frame (1), A steel plate (2), wherein the lower plate surface of the steel plate (2) is fixedly attached to the upper surface of the steel frame (1), and one side of the upper plate surface of the steel plate (2) is hingedly connected to a scaffolding board (6) of an attached lifting scaffold; A fastener (4), wherein the fastener (4) is fixed to a side of the steel plate (2) away from the scaffolding board (6); A steel wire rope (5), one end of which is tied and fixed to the fastener (4), and the other end of which is tied and fixed to the top of the vertical pole (7) of the attached lifting scaffold.

2. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: The steel frame (1) is welded from square tubes and comprises a transverse tube (11) and a longitudinal tube (12). The transverse tubes (11) are provided in two numbers and are symmetrically arranged. The longitudinal tubes (12) are provided in a plurality and are arranged perpendicular to the transverse tubes (11). The plurality of longitudinal tubes (12) are evenly arranged between the two transverse tubes (11), and the two ends of the longitudinal tubes (12) are respectively fixed to the opposite side walls of the two transverse tubes (11).

3. The anti-falling device for an attached lifting scaffold according to claim 2, characterized in that: The distance between the two transverse tubes (11) is the distance between the outer wall of the attached lifting scaffold and the structure, the steel plate (2) completely covers the upper surface of the steel frame (1), and the axis of the transverse tube (11) is parallel to the length direction of the scaffolding board (6).

4. The anti-falling device for an attached lifting scaffold according to claim 3, characterized in that: The number of the fasteners (4) is multiple and they are made of screw rods. The screw rods are evenly distributed along the side of the steel plate (2) away from the upper surface of the scaffolding board (6). The screw rods have nuts and bolts. The nuts are fixed to the upper surface of the steel plate (2). The screw rods are arranged perpendicular to the upper surface of the steel plate (2) and have a through hole at one end away from the nut. One end of the steel wire rope (5) is wrapped around the through hole and is fastened to the bolt.

5. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: The steel plate (2) and the scaffolding board (6) are hingedly connected via a plurality of hinges (3), and the length of the steel plate (2) is the same as that of the scaffolding board (6).

6. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: The steel plate (2) comprises a first steel plate and a second steel plate, wherein the first steel plate is fixed to the upper surface of the steel frame (1) close to the scaffolding board (6), and the panel of the second steel plate is slidably connected to the panel of the steel plate (2) close to the scaffolding board (6).

7. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: A limit card is provided between the panels of the two steel plates (2).

8. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: The diameter of the steel wire rope (5) is not less than 6.2 mm, and the breaking force is not less than 20 KN.

9. The anti-falling device for an attached lifting scaffold according to claim 1, characterized in that: The thickness of the steel plate (2) is not less than 6 mm.

10. The anti-falling device for an attached lifting scaffold according to claim 2, characterized in that: The cross-sectional size of the square tube is not less than 20*20 mm, and the wall thickness is not less than 3 mm.

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