Assembly type steel structure spiral stair structure

Abstract

The utility model discloses an assembly type steel structure spiral staircase structure which comprises a plurality of groups of steel structure spiral staircase modules which are sequentially combined and installed from bottom to top and fixing and locking mechanisms matched with the steel structure spiral staircase modules. Any one of the multiple sets of steel structure spiral stair modules which are sequentially combined and installed from bottom to top is formed by combining a set of center stand columns, multiple sets of spirally-arranged stair steps and a set of rotating shell, an upper assembling groove is formed in the side face of the top end of the rotating shell, and a lower assembling base is fixedly installed on the side face of the bottom end of the rotating shell. The upper assembling groove is fixedly connected with the lower assembling base on the side face of the bottom end of the adjacent rotating shell through a fixing and locking mechanism. Compared with a traditional steel structure spiral stair assembling mode, the whole spiral stair assembling device is lower in time and labor cost, shorter in assembling period, higher in efficiency and lower in assembling difficulty coefficient.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure spiral staircases, in particular to an assembled steel structure spiral staircase structure. Background Art

[0002] A spiral staircase is a revolving staircase, commonly called a spiral or spiral staircase. It is usually arranged around a single column and is popular because of its beautiful and elegant streamlined shape and space saving.

[0003] At present, spiral staircases are divided into concrete spiral staircases and steel spiral staircases. Concrete spiral staircases need to be molded and cast on site, and cannot have complex shapes. At this time, steel spiral staircases make up for the defects of concrete spiral staircases. They can be made into complex shapes and have certain decorative effects. They are not as dull as concrete stairs. However, there are also certain defects and deficiencies that need to be improved. Specifically, the steel spiral staircase needs to be welded on site according to the shape, which leads to high time and labor costs, long assembly cycle, and high assembly difficulty coefficient.

[0004] Therefore, it is particularly important to design an assembled steel spiral staircase structure to solve the above-mentioned defects. Utility Model Content

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the utility model designs an assembled steel spiral staircase structure, which solves the technical problems in the prior art that the steel spiral staircase needs to be welded on-site according to the shape, resulting in high time and labor costs, long assembly cycle, and high assembly difficulty coefficient.

[0007] 2) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An assembled steel spiral staircase structure comprises a plurality of groups of steel spiral staircase modules assembled and installed in sequence from bottom to top and a corresponding fixing and locking mechanism, wherein any one of the plurality of groups of steel spiral staircase modules assembled and installed in sequence from bottom to top is composed of a group of central columns, a plurality of groups of spirally arranged stair steps and a group of rotating shells, an upper assembly groove is provided on the top side of the rotating shell, a lower assembly seat is fixedly installed on the bottom side of the rotating shell, and the upper assembly groove is fixedly connected to the lower assembly seat on the bottom side of an adjacent group of rotating shells through a fixing and locking mechanism.

[0010] As a preferred solution of the utility model, a first upper transverse connecting screw hole, a first lower transverse connecting screw hole, and a first central transverse connecting screw hole are respectively opened on both sides of the inner wall of the upper assembly groove near the top end, the bottom end, and the center, and a second upper transverse connecting screw hole, a second lower transverse connecting screw hole, and a second central transverse connecting screw hole corresponding to the first upper transverse connecting screw hole, the first lower transverse connecting screw hole, and the first central transverse connecting screw hole are respectively opened near the top end, the bottom end, and the center of the lower assembly seat.

[0011] As a preferred solution of the utility model, a first longitudinal limiting screw hole is formed through the inner bottom surface of the upper assembly groove, and second longitudinal limiting screw holes are formed on both upper and lower end surfaces of the lower assembly seat.

[0012] As a preferred solution of the utility model, the fixed locking mechanism is composed of an upper connecting locking assembly, a lower connecting locking assembly and a central connecting screw, and the upper connecting locking assembly and the lower connecting locking assembly are symmetrically distributed on the upper assembly groove and the upper and lower sides of an adjacent group of lower assembly seats, and the upper connecting locking assembly and the lower connecting locking assembly are both composed of an improved connecting screw and a longitudinal limit screw.

[0013] As a preferred solution of the utility model, the improved connecting screw includes a small diameter cross bar, and the two ends of the small diameter cross bar are respectively fixedly connected with a first large diameter screw head and a second large diameter screw head. One end face of the improved connecting screw is provided with a rotating groove, and one end face of the longitudinal limiting screw is provided with a cross rotating groove.

[0014] As a preferred solution of the utility model, a third longitudinal limiting screw hole adapted to the longitudinal limiting screw rod is provided through the center of the small-diameter cross bar.

[0015] As a preferred solution of the utility model, the central column is installed through the center of the rotating shell, and the outer surface of the central column and the inner wall of the rotating shell are fixedly connected by a plurality of groups of spirally arranged stair steps, a lower special-shaped plug rod is fixedly connected to the center of the bottom end of the central column, and an upper special-shaped slot matching the lower special-shaped plug rod is provided at the inner top end of the central column.

[0016] 3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a plurality of groups of steel structure spiral staircase modules which are assembled and installed in sequence from bottom to top and a matching fixing and locking mechanism, so that the steel structure spiral staircase can be decomposed into a plurality of modules which are directly produced and formed, and the modules can be quickly assembled and fixed by the matching fixing and locking mechanism. Compared with the assembly method of the traditional steel structure spiral staircase, the utility model has lower time and labor costs, shorter assembly cycle, higher efficiency and lower assembly difficulty coefficient, thereby effectively solving the technical problems in the prior art that the steel structure spiral staircase needs to be welded on site according to the shape, resulting in high time and labor costs, long assembly cycle and high assembly difficulty coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 It is a three-dimensional perspective structural diagram of the central column in the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper assembly groove and the lower assembly seat in the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the fixing and locking mechanism in the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the upper and lower connecting locking components in the utility model;

[0024] In the figure: 1. Steel structure spiral staircase module; 11. Center column; 111. Lower special-shaped plug rod; 112. Upper special-shaped slot; 12. Stair step; 13. Rotating shell; 131. Upper assembly slot; 1311. First upper horizontal connecting screw hole; 1312. First lower horizontal connecting screw hole; 1313. First central horizontal connecting screw hole; 1314. First longitudinal limiting screw hole; 132. Lower assembly seat; 1321. Second upper horizontal connecting screw hole; 1322. Two lower transverse connecting screw holes; 1323, second central transverse connecting screw hole; 1324, second longitudinal limiting screw hole; 2, fixed locking mechanism; 21, upper connecting locking assembly; 22, lower connecting locking assembly; 23, central connecting screw; 24, improved connecting screw; 241, small diameter cross bar; 2411, third longitudinal limiting screw hole; 242, first large diameter screw head; 243, second large diameter screw head; 25, longitudinal limiting screw; 251, cross groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] The utility model provides an assembled steel spiral staircase structure, which solves the technical problems in the prior art that the steel spiral staircase needs to be welded on site according to the shape, resulting in high time and labor costs, long assembly cycle, and high assembly difficulty coefficient;

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: an assembled steel spiral staircase structure, comprising a plurality of groups of steel spiral staircase modules 1 assembled and installed in sequence from bottom to top and a corresponding fixing and locking mechanism 2, wherein any group of the plurality of groups of steel spiral staircase modules 1 assembled and installed in sequence from bottom to top is composed of a group of central columns 11, a plurality of groups of spirally arranged stair steps 12 and a group of rotating shells 13, an upper assembly groove 131 is provided on the top side of the rotating shell 13, a lower assembly seat 132 is fixedly installed on the bottom side of the rotating shell 13, and the upper assembly groove 131 is fixedly connected to the lower assembly seat 132 on the bottom side of an adjacent group of rotating shells 13 through a fixing and locking mechanism 2.

[0029] Among them, the inner wall of the upper assembly groove 131 is respectively provided with a first upper transverse connecting screw hole 1311, a first lower transverse connecting screw hole 1312, and a first central transverse connecting screw hole 1313 near the top, the bottom, and the center, and the lower assembly seat 132 is respectively penetrated with a second upper transverse connecting screw hole 1321, a second lower transverse connecting screw hole 1322, and a second central transverse connecting screw hole 1323 corresponding to the first upper transverse connecting screw hole 1311, the first lower transverse connecting screw hole 1312, and the first central transverse connecting screw hole 1313 near the top, the bottom, and the center; the inner bottom surface of the upper assembly groove 131 is penetrated with a first longitudinal limiting screw hole 13 14, the lower assembly seat 132 has a second longitudinal limit screw hole 1324 on both upper and lower end surfaces; the fixed locking mechanism 2 is composed of an upper connection locking component 21, a lower connection locking component 22 and a central connection screw 23, and the upper connection locking component 21 and the lower connection locking component 22 are symmetrically distributed on the upper assembly groove 131 and the upper and lower sides of an adjacent group of lower assembly seats 132, and the upper connection locking component 21 and the lower connection locking component 22 are composed of an improved connection screw 24 and a longitudinal limit screw 25. When assembling, the steel structure spiral staircase modules 1 of the two adjacent groups are arranged up and down, and gradually approached until the upper assembly groove 131 and the adjacent lower assembly seat 1 32 clamping, at this time, the first upper transverse connecting screw hole 1311, the first lower transverse connecting screw hole 1312, and the first central transverse connecting screw hole 1313 correspond to the second upper transverse connecting screw hole 1321, the second lower transverse connecting screw hole 1322, and the second central transverse connecting screw hole 1323, and the first longitudinal limiting screw hole 1314 corresponds to the second longitudinal limiting screw hole 1324 located at the bottom end surface of the lower assembly seat 132, and the two sets of improved connecting screws 24 are screwed into the interior of the upper transverse connecting screw hole and the lower transverse connecting screw, and a set of central connecting screws 23 is screwed into the interior of the central transverse connecting screw hole, and the two sets of longitudinal limiting screws are screwed into the inner side of the central transverse connecting screw hole. The screw rod 25 is respectively installed inwardly from the upper and lower ends of the lower assembly seat 132 until the longitudinal limit screw rod 25 enters the center of the improved connecting screw rod 24, and the above assembly process is continuously repeated until the overall steel structure spiral staircase is assembled. By setting a plurality of groups of steel structure spiral staircase modules 1 and a matching fixing and locking mechanism 2 that are sequentially assembled and installed from bottom to top, the steel structure spiral staircase can be decomposed into a plurality of modules that are directly produced and formed, and quickly assembled and fixed by the matching fixing and locking mechanism 2. Compared with the traditional steel structure spiral staircase assembly method, the time and labor cost is lower, the assembly cycle is shorter, the efficiency is higher, and the assembly difficulty coefficient is lower;

[0030] In addition, in this embodiment, please refer to Figure 5The improved connecting screw 24 includes a small-diameter cross bar 241, and the two ends of the small-diameter cross bar 241 are respectively fixedly connected with a first large-diameter screw head 242 and a second large-diameter screw head 243. A rotation groove is provided on one end surface of the improved connecting screw 24, and a cross rotation groove 251 is provided on one end surface of the longitudinal limit screw 25; a third longitudinal limit screw hole 2411 adapted to the longitudinal limit screw 25 is provided through the center of the small-diameter cross bar 241, and the improved connecting screw 24, the third longitudinal limit screw hole 2411 and the longitudinal limit screw 25 can be fixed and locked by using the horizontal and vertical staggered fixation, which greatly improves the overall structural stability, and the rotation groove and the cross rotation groove 251 are arranged to make it easier to install and fix;

[0031] In addition, in this embodiment, please refer to Figure 2 The central column 11 is installed through the center of the rotating shell 13, and the outer surface of the central column 11 and the inner wall of the rotating shell 13 are fixedly connected by a plurality of groups of spirally arranged stair steps 12. A lower special-shaped plug rod 111 is fixedly connected to the center of the bottom end of the central column 11. An upper special-shaped slot 112 adapted to the lower special-shaped plug rod 111 is provided at the top of the inner part of the central column 11. The lower special-shaped plug rod 111 and the matching upper special-shaped slot 112 can not only perform preliminary limited assembly to ensure the accurate docking of the upper assembly groove 131 and the lower assembly seat 132, but also effectively prevent self-rotation;

[0032] The working process of the utility model is as follows: during assembly, the two adjacent groups of steel structure spiral staircase modules 1 are arranged up and down, and gradually approached until the upper assembly groove 131 is clamped with the adjacent lower assembly seat 132. At this time, the first upper transverse connecting screw hole 1311, the first lower transverse connecting screw hole 1312, and the first central transverse connecting screw hole 1313 correspond to the second upper transverse connecting screw hole 1321, the second lower transverse connecting screw hole 1322, and the second central transverse connecting screw hole 1323. At the same time, the first longitudinal limiting screw hole 1314 corresponds to the second longitudinal limiting screw hole 1324 located at the bottom end surface of the lower assembly seat 132. At the same time, the two groups of improved The connecting screws 24 are screwed into the upper transverse connecting screw holes and the lower transverse connecting screws respectively, and a group of central connecting screws 23 are screwed into the central transverse connecting screw holes, and two groups of longitudinal limiting screws 25 are screwed inward from the upper and lower ends of the lower assembly seat 132 respectively until the longitudinal limiting screws 25 enter the center of the improved connecting screws 24. The above assembly process is repeated until the overall steel structure spiral staircase is assembled. During the entire fixing process, all the screws are hidden inside the shell, and the fixed nodes are sprayed after the assembly is completed. On the one hand, it is anti-corrosive, and on the other hand, it is more beautiful and more consistent as a whole.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled steel spiral staircase structure, comprising a plurality of steel spiral staircase modules (1) assembled and installed in sequence from bottom to top and a corresponding fixing and locking mechanism (2), characterized in that: Any one of the plurality of groups of steel structure spiral staircase modules (1) assembled and installed in sequence from bottom to top is composed of a group of central columns (11), a plurality of groups of spirally arranged stair steps (12) and a group of rotating shells (13); an upper assembly groove (131) is provided on the top side of the rotating shell (13); a lower assembly seat (132) is fixedly installed on the bottom side of the rotating shell (13); the upper assembly groove (131) is fixedly connected to the lower assembly seat (132) on the bottom side of an adjacent group of rotating shells (13) via a fixed locking mechanism (2).

2. The assembled steel spiral staircase structure according to claim 1, characterized in that: A first upper transverse connecting screw hole (1311), a first lower transverse connecting screw hole (1312), and a first central transverse connecting screw hole (1313) are respectively provided on both sides of the inner wall of the upper assembly groove (131) near the top end, the bottom end, and the center; a second upper transverse connecting screw hole (1321), a second lower transverse connecting screw hole (1322), and a second central transverse connecting screw hole (1323) are respectively provided through the lower assembly seat (132) near the top end, the bottom end, and the center, which correspond to the first upper transverse connecting screw hole (1311), the first lower transverse connecting screw hole (1312), and the first central transverse connecting screw hole (1313).

3. The assembled steel spiral staircase structure according to claim 2 is characterized by: A first longitudinal limiting screw hole (1314) is formed through the inner bottom surface of the upper assembly groove (131), and second longitudinal limiting screw holes (1324) are formed on both upper and lower end surfaces of the lower assembly seat (132).

4. The assembled steel spiral staircase structure according to claim 1, characterized in that: The fixing locking mechanism (2) is composed of an upper connecting locking assembly (21), a lower connecting locking assembly (22) and a central connecting screw (23), and the upper connecting locking assembly (21) and the lower connecting locking assembly (22) are symmetrically distributed on the upper and lower sides of the upper assembly groove (131) and an adjacent group of lower assembly seats (132), and the upper connecting locking assembly (21) and the lower connecting locking assembly (22) are both composed of an improved connecting screw (24) and a longitudinal limiting screw (25).

5. The assembled steel spiral staircase structure according to claim 4 is characterized by: The improved connecting screw (24) comprises a small diameter cross bar (241), and the two ends of the small diameter cross bar (241) are respectively fixedly connected with a first large diameter screw head (242) and a second large diameter screw head (243). One end surface of the improved connecting screw (24) is provided with a rotation groove, and one end surface of the longitudinal limiting screw (25) is provided with a cross rotation groove (251).

6. The assembled steel spiral staircase structure according to claim 5, characterized in that: A third longitudinal limiting screw hole (2411) adapted to the longitudinal limiting screw rod (25) is provided through the center of the small-diameter cross rod (241).

7. The assembled steel spiral staircase structure according to claim 1, characterized in that: The central column (11) is installed through the center of the rotating shell (13), and the outer surface of the central column (11) and the inner wall of the rotating shell (13) are fixedly connected via a plurality of groups of spirally arranged stair steps (12). A lower special-shaped plug rod (111) is fixedly connected to the center of the bottom end of the central column (11), and an upper special-shaped slot (112) adapted to the lower special-shaped plug rod (111) is provided at the inner top end of the central column (11).

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