Steel stair structure for bearing steel beam construction

Abstract

The utility model relates to the technical field, in particular to a steel stair structure for bearing steel beam construction. The device comprises a platform and a fixing plate, the bottom of the platform is movably connected with four bearing columns, the bottoms of the four bearing columns are provided with a connecting plate, the surface of the connecting plate is in threaded connection with a plurality of bolts, the bottom of the connecting plate is provided with a bearing table, and the bottom of the bearing table is provided with a bearing frame; the bottom of the bearing frame is rotationally connected with a plurality of foundation bolts, the surfaces of the foundation bolts are in threaded connection with nuts, and the bottoms of the foundation bolts are fixedly connected with antiskid plates. All the components are connected through the bolts, the steel staircase is of a folding telescopic structure, and the solid wheels and the foundation bolts are installed at the bottom of the steel staircase so that the steel staircase can be conveniently moved, and therefore the problems that disassembly is inconvenient and the steel staircase cannot be moved to the needed position at any time are solved.

Description

Technical Field

[0001] The utility model relates to the field of load-bearing steel beam construction, in particular to a steel staircase structure used for load-bearing steel beam construction. Background Art

[0002] Before the stairs are cast at the building construction site, workers generally use steel pipe ladders or bamboo springboard ladders as stairs. Since the ladders need to be laid almost vertically on the ground and are temporarily set up, the connections between the setting materials are not firm, which can easily lead to safety hazards when technicians go up and down. Therefore, more and more construction sites use steel stairs to ensure the personal safety of technicians.

[0003] In the prior art, for example, the Chinese utility model patent document with the Chinese patent publication number CN114215293A discloses a truss steel structure staircase, including an I-beam main beam, which is vertically fixed to the floor in sequence, and there are four I-beam main beams arranged in a square shape. The front and rear ends of the top surface of the I-beam main beam are horizontally aligned and welded with an I-beam cross beam, and the left and right ends of the top surface of the I-beam main beam are horizontally aligned and welded with an I-beam longitudinal beam. The I-beam cross beam and the I-beam longitudinal beam form a rectangular structure, and a platform is installed on the top surface of the rectangle, and the three side walls of the platform are all in contact with the surrounding side of the staircase. The height of the I-beam main beam is evenly divided into sections and welded with cross bars, and oblique bars are welded diagonally between the cross bars. A staircase structure is provided at the right end of the I-beam cross beam, and the staircase structure includes a first connecting plate, which is welded to the side of the platform that is in contact with the stair entrance. The first connecting plate is away from the side connected to the platform, and the front and rear ends are horizontally aligned, and the first truss staircase and the second truss staircase are installed in sequence. The second connecting plate is installed at the end of the first truss staircase and the second truss staircase, and the second connecting plate is fixedly installed on the floor. Stair plates are installed in sequence horizontally between the first truss staircase and the second truss staircase.

[0004] However, since multiple positions of the load-bearing steel beams need to be operated during the construction process, and the installed staircase structure can generally only be used in one location and cannot be moved to the required position at any time, and because it is a welded fixed structure, it will be inconvenient to disassemble after the construction is completed. In view of this, we propose a steel staircase structure for load-bearing steel beam construction. Utility Model Content

[0005] The utility model aims to provide a steel staircase structure for construction with load-bearing steel beams, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel staircase structure for load-bearing steel beam construction, including a platform and a fixed plate, the bottom of the platform is movably connected to four load-bearing columns, the bottoms of the four load-bearing columns are provided with connecting plates, the surfaces of the connecting plates are threadedly connected with a plurality of bolts, the bottom of the connecting plates is provided with a load-bearing platform, the bottom of the load-bearing platform is provided with a load-bearing frame, the bottom of the load-bearing frame is rotatably connected with a plurality of anchor bolts, the surfaces of the anchor bolts are threadedly connected with nuts, and the bottoms of the anchor bolts are fixedly connected with anti-slip plates.

[0007] As a further improvement of the present technical solution, a plurality of fixed hinges are arranged on the side of the fixed plate away from the platform, the fixed hinges are movably connected to the first support plate, one end of the first support plate away from the fixed hinge is movably connected to the second support plate and the third support plate, and one end of the second support plate away from the first support plate is movably connected to the fixed hinge.

[0008] As a further improvement of the present technical solution, a pedal is provided on the side of the fixed hinge away from the first support plate, and the second connecting plates are fixedly connected on both sides of the pedal, and the end of the second connecting plate away from the fixed hinge is movably connected to the first connecting plate, the center of the first connecting plate is movably connected to the center of the second connecting plate, the second connecting plate is movably connected to the third connecting plate at the center position of one side close to the fixed hinge, and the end of the first connecting plate away from the pedal is movably connected to the end of the third support plate away from the first support plate.

[0009] As a further improvement of the technical solution, a plurality of fixed wing plates are fixedly connected to the bottom of the load-bearing frame, and the fixed wing plates are all movably connected to solid wheels.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The steel staircase structure used for the construction of the load-bearing steel beam is connected by bolts at all parts. The staircase adopts a telescopic and folding structure, which is convenient for disassembly after the construction is completed. Four solid wheels are installed at the bottom, which can be moved to the required position through the solid wheels when construction is carried out at different positions. However, since it is necessary to stand on the platform through the stairs during construction, and the solid wheels are prone to instability during this process, six anchor bolts are set at the bottom. When the staircase needs to be fixed in a position, the anchor bolts are rotated clockwise and stop at a position exceeding the height of the solid wheels. The nuts are then rotated clockwise until they fit the bottom surface of the load-bearing frame and are tightened to fix them, thereby solving the problems of inconvenient disassembly and inability to move to the required position at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the staircase structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the mobile component of the utility model;

[0015] Figure 4 This is a disassembled diagram of the mobile component structure of the utility model.

[0016] The meaning of each number in the figure is:

[0017] 1. Platform; 11. Load-bearing column; 12. Connecting plate; 13. Bolt; 14. Load-bearing platform; 2. Fixed plate; 21. Pedal; 22. Fixed hinge; 23. First support plate; 24. Second support plate; 25. Third support plate; 26. First connecting plate; 27. Second connecting plate; 28. Third connecting plate; 3. Load-bearing frame; 31. Anchor bolt; 32. Anti-skid plate; 33. Fixed wing plate; 34. Solid wheel; 35. Nut. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, in the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0021] See also Figure 1As shown, the utility model provides a steel staircase structure for load-bearing steel beam construction, including a platform 1 and a fixed plate 2, the bottom of the platform 1 is movably connected to four load-bearing columns 11 by bolts 13, a connecting plate 12 is provided at the bottom of the four load-bearing columns 11, a plurality of bolts 13 are threadedly connected to the surface of the connecting plate 12, a load-bearing platform 14 is provided at the bottom of the connecting plate 12, a load-bearing frame 3 is provided at the bottom of the load-bearing platform 14, a plurality of anchor bolts 31 are rotatably connected to the bottom of the anchor bolts 31, a nut 35 is threadedly connected to the surface of the anchor bolts 31, and an anti-skid plate 32 is fixedly connected to the bottom of the anchor bolts 31.

[0022] See also Figure 3-Figure 4 As shown, in this embodiment, a plurality of fixed wing plates 33 are fixedly connected to the bottom of the load-bearing frame 3, and the fixed wing plates 33 are movably connected to solid wheels 34. During construction, the solid wheels 34 can be used to move the platform 1 to the required position. However, since the platform 1 needs to be stood on by stairs during construction, and the solid wheels 34 are prone to slide during this process, causing the platform 1 to be unstable, six anchor bolts 31 are fixedly installed at the bottom. When the staircase needs to be fixed at a position, the anchor bolts 31 are rotated clockwise and stop at a position exceeding the height of the solid wheels 34, and then the nuts 35 are rotated clockwise to fit the bottom surface of the load-bearing frame 3, that is, tightened and fixed. The anti-slip plate 32 at the bottom of the anchor bolts 31 further ensures the stability of the staircase during construction.

[0023] See also Figure 2 As shown, further, four fixed hinges 22 are provided on the side of the fixed plate 2 away from the platform 1, and one side of the four fixed hinges 22 are fixedly connected to the side of the fixed plate 2 away from the platform 1 by bolts 13, and the fixed hinge 22 is movably connected to the first support plate 23, and one end of the first support plate 23 away from the fixed hinge 22 is movably connected to the second support plate 24 and the third support plate 25, and one end of the second support plate 24 away from the first support plate 23 is movably connected to the fixed hinge 22.

[0024] See also Figure 2 As shown, specifically, a pedal 21 is provided on the side of the fixed hinge 22 away from the first support plate 23, and one end of the topmost pedal 21 is movably connected to the fixed hinge 22, the other end of the lowest pedal 21 is movably connected to the third connecting plate 28, and the two ends of the remaining pedals 21 are respectively movably connected to the first connecting plate 26, and the second connecting plate 27 is fixedly connected to both sides of the pedal 21, and the end of the second connecting plate 27 away from the fixed hinge 22 is movably connected to the first connecting plate 26, the center of the first connecting plate 26 is movably connected to the center of the second connecting plate 27, and the second connecting plate 27 is movably connected to a third connecting plate 28 at the center position of the side close to the fixed hinge 22, and the end of the first connecting plate 26 away from the pedal 21 is movably connected to the end of the third support plate 25 away from the first support plate 23.

[0025] See also Figure 1-Figure 4 As shown, in addition, after the construction is completed, it can be disassembled by bolts 13. It is not necessary to disassemble each structure. It is only necessary to disassemble the platform 1 and the load-bearing column 11. When there are no special circumstances, the stairs can be folded and contracted to the fixed plate 2 by bolts 13. If it needs to be disassembled, it can be disassembled by bolts 13, and the disassembled components can be placed on the load-bearing platform 14 and easily transported by solid wheels 34.

[0026] In summary, the working principle of this scheme is as follows:

[0027] When construction is required at different positions, the four solid wheels 34 installed can be used to move it to the required construction position. Workers will pass through the stair walkway platform 1, but since the solid wheels 34 are prone to slip during this process, causing the platform 1 to be unstable, six anchor bolts 31 are added at the bottom. The anchor bolts 31 are rotated clockwise and stop at a position that exceeds the height of the solid wheels 34. The nuts 35 are then rotated clockwise to fit the bottom surface of the load-bearing frame 3 and tightened to fix it. After the construction is completed, only the platform 1 and the load-bearing column 11 need to be disassembled, and the stairs are folded and retracted to a position close to the fixed plate 2 by bolts 13, and then the disassembled components and the retracted stairs are placed on the load-bearing platform 14.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel staircase structure for load-bearing steel beam construction, comprising a platform (1) and a fixing plate (2), characterized in that: The bottom of the platform (1) is movably connected to four load-bearing columns (11), the bottom of the four load-bearing columns (11) is provided with a connecting plate (12), the surface of the connecting plate (12) is threadedly connected to a plurality of bolts (13), the bottom of the connecting plate (12) is provided with a load-bearing platform (14), the bottom of the load-bearing platform (14) is provided with a load-bearing frame (3), the bottom of the load-bearing frame (3) is rotatably connected to a plurality of anchor bolts (31), the surface of the anchor bolts (31) is threadedly connected to a nut (35), and the bottom of the anchor bolts (31) is fixedly connected to an anti-slip plate (32).

2. The steel staircase structure for load-bearing steel beam construction according to claim 1 is characterized in that: A plurality of fixed hinges (22) are arranged on a side of the fixed plate (2) away from the platform (1), the fixed hinge (22) is movably connected to a first support plate (23), and an end of the first support plate (23) away from the fixed hinge (22) is movably connected to a second support plate (24) and a third support plate (25), wherein: One end of the second support plate (24) away from the first support plate (23) is movably connected to the fixed hinge (22).

3. The steel staircase structure for load-bearing steel beam construction according to claim 2 is characterized in that: A pedal (21) is provided on one side of the fixed hinge (22) away from the first support plate (23), and second connecting plates (27) are fixedly connected to both sides of the pedal (21), and one end of the second connecting plate (27) away from the fixed hinge (22) is movably connected to the first connecting plate (26), the center of the first connecting plate (26) is movably connected to the center of the second connecting plate (27), and the center position of the second connecting plate (27) close to the fixed hinge (22) is movably connected to the third connecting plate (28), wherein: One end of the first connecting plate (26) away from the pedal (21) is movably connected to one end of the third supporting plate (25) away from the first supporting plate (23).

4. The steel staircase structure for load-bearing steel beam construction according to claim 1 is characterized in that: A plurality of fixed wing plates (33) are fixedly connected to the bottom of the load-bearing frame (3), and each of the fixed wing plates (33) is movably connected to a solid wheel (34).

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