Split type step structure for spiral staircase

Abstract

The split type step structure comprises a cylinder, a plurality of step plates, a bridge assembly and a connecting piece, the cylinder is vertically arranged, the number of the step plates is multiple, the adjacent step plates are assembled in an inserted connection mode, one end of each step plate is installed on the curved surface of the cylinder, and the other end of each step plate is installed on the bridge assembly. And the other end of the step plate is mounted on the bridge frame assembly through a connecting piece. According to the scheme, the two ends of the step plate are effectively fixed, and compared with the mode that only one side of the step plate is fixed in the prior art, the step plate is more stable in structure and higher in safety; according to the scheme, every two adjacent step plates are arranged in an inserted mode, installation is fast and convenient, positioning is convenient, the lower step plate can support the upper step plate, and the stability of the step plates is further improved.

Description

Technical Field

[0001] The utility model relates to the field of building decoration, in particular to a split step structure for a spiral staircase. Background Art

[0002] A spiral staircase usually includes a column and treads, wherein the treads are arranged in a spiral shape based on the axis of the column. Usually, only one end of the tread is fixed to the column, and the other end of the tread needs to be supported by a supporting structure to ensure the practical safety of the staircase. In the prior art, a supporting foot is usually used to support the other end of the tread, and each tread requires a separate supporting foot, which is time-consuming, labor-intensive, and wastes materials.

[0003] For example, the utility model patent with application number 200720095403.4, entitled "Spiral Staircase", uses support columns between adjacent steps. In this way, the steps are subjected to uneven force and have poor stability. Therefore, the technical problem to be solved by this application is: how to improve the stability of the steps in the spiral staircase. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses a split tread structure for a spiral staircase. The two ends of the tread are effectively fixed in the present invention. Compared with the method of only fixing one side of the tread in the prior art, the tread structure of the present invention is more stable and safer. The two adjacent treads in the present invention are plug-inly arranged, which has the advantages of quick installation and easy positioning, and the lower tread can support the upper tread, which further improves the stability of the tread.

[0005] Specifically, the utility model discloses a split tread structure for a spiral staircase, including a cylinder, a tread board, a bridge assembly and a connecting piece. The cylinder is vertically arranged, the number of the tread boards is multiple, and adjacent tread boards are plug-in assembled. One end of the tread board is installed on the curved surface of the cylinder, and the other end of the tread board is installed on the bridge assembly through a connecting piece.

[0006] Preferably, the plurality of treads are arranged in a spiral manner with the axis of the cylinder as a reference.

[0007] Preferably, the tread comprises a horizontal portion and a vertical portion, and two or more connecting members are installed on the lower surface of each horizontal portion.

[0008] Preferably, the connecting member is a screw rod.

[0009] Preferably, the bridge assembly comprises a plurality of square tubes, and two adjacent square tubes are connected via a rotating adjustment assembly.

[0010] Preferably, a clamp is installed on the square tube, and the screw rod is installed on the clamp.

[0011] Preferably, each of the rotation adjustment components comprises two connecting plates, which are hingedly arranged and used for mounting the square tube.

[0012] Preferably, each of the connecting plates has folded wings on both sides for inserting and installing the square tube.

[0013] Preferably, a strip-shaped opening is provided on the folding wing, and a first screw for locking the other tube is provided on the strip-shaped opening.

[0014] Preferably, two adjacent connecting plates are fastened by a second screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of the split step structure for the spiral staircase proposed in this embodiment;

[0017] Figure 2 is a schematic diagram of the three-dimensional structure of the rotation adjustment component in this embodiment;

[0018] Figure 3 It is a schematic diagram of the assembly between the step plates in this embodiment.

[0019] The reference numerals in the accompanying drawings are as follows:

[0020] 11-cylinder; 12-horizontal part; 13-vertical part; 14-screw rod; 15-square tube; 16-hoop; 17-connecting plate; 18-folded wing; 19-strip mouth; 20-first screw; 21-second screw; 22-plug-in slot; 23-first L-shaped member; 24-second L-shaped member. DETAILED DESCRIPTION

[0021] The technical solution of the present application is further described below in conjunction with specific embodiments, but the present application is not limited to these embodiments.

[0022] like Figures 1 to 3 As shown, this embodiment proposes a split tread structure for a spiral staircase, including a cylinder 11, a tread, a bridge assembly and a connector. The cylinder 11 is vertically arranged, and there are multiple treads. Adjacent treads are plug-in assembled. One end of the tread is installed on the curved surface of the cylinder 11, and the other end of the tread is installed on the bridge assembly through a connector.

[0023] This solution has the advantage of high stability. The two ends of the tread are effectively fixed respectively. Compared with the prior art method of fixing only one side of the tread, the tread structure of this solution is more stable and safer. The two adjacent treads in this solution are plug-in-connected, which is quick to install and easy to position. The lower tread can support the upper tread, which further improves the stability of the tread.

[0024] Furthermore, the plurality of treads are arranged in a spiral manner with the axis of the cylinder 11 as a reference.

[0025] As an implementation of this embodiment, the tread includes a horizontal portion 12 and a vertical portion 13 , and two or more connecting members are installed on the lower surface of each horizontal portion 12 .

[0026] Each horizontal portion 12 is provided with a plug-in slot 22 for plugging and installing the vertical portion 13. Between two adjacent treads, the vertical portion 13 in the upper tread is used to be plugged into the plug-in slot 22 of the lower tread.

[0027] As an implementation method of this embodiment, the connecting piece is a screw rod 14 or a smooth rod.

[0028] As an implementation of this embodiment, the bridge assembly includes a plurality of square tubes 15, and two adjacent square tubes 15 are connected via a rotation adjustment assembly.

[0029] As an implementation of this embodiment, a clamp 16 is installed on the square tube 15, and a screw rod 14 is installed on the clamp 16. The clamp 16 is provided with a threaded hole for installing the screw rod 14, and the screw rod 14 is further provided with a locking nut, which squeezes the clamp 16 to further lock the screw rod 14 and the clamp 16.

[0030] As an implementation of this embodiment, each rotation adjustment assembly includes two connecting plates 17, which are hingedly arranged and used to install the square tube 15. Furthermore, two adjacent connecting plates 17 are locked by a second screw 21.

[0031] This solution is used to flexibly install the treads, which can effectively improve the construction efficiency.

[0032] Since the treads in the spiral staircase are arranged in a spiral, when connecting the square tubes 15 at the lower ends of two adjacent treads, it is necessary to consider the distance between the two adjacent square tubes 15 and the offset angle, which requires a relatively high construction accuracy. The hinged arrangement of the two connecting plates 17 in this solution can solve the installation problem of the offset angle.

[0033] In addition, each connecting plate 17 has folded wings 18 on both sides for inserting and installing the square tube 15. The folded wings 18 are provided with strip-shaped openings 19, and the strip-shaped openings 19 are provided with first screws 20 for locking the square tube 15. The folded wings 18 can effectively accommodate the square tube 15 and are used to adjust the installation position of the square tube 15, effectively solving the installation problem of the distance between two adjacent square tubes 15.

[0034] Furthermore, the lower end surface of the tread is provided with a first L-shaped member 23 and a second L-shaped member 24, which are respectively arranged at the edges of both ends of the tread. The technical effect of this solution is to improve the structural strength of the corner of the tread.

[0035] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A split step structure for a spiral staircase, characterized in that: The utility model comprises a cylinder (11), a tread, a bridge assembly and a connecting piece, wherein the cylinder (11) is vertically arranged, the number of the treads is multiple, and adjacent treads are plug-in assembled, one end of the tread is installed on the curved surface of the cylinder (11), and the other end of the tread is installed on the bridge assembly through the connecting piece.

2. The split step structure for a spiral staircase according to claim 1, characterized in that: The plurality of treads are arranged in a spiral manner with the axis of the cylinder (11) as a reference.

3. The split step structure for a spiral staircase according to claim 2, characterized in that: The tread comprises a horizontal portion (12) and a vertical portion (13), and at least two connecting members are installed on the lower surface of each horizontal portion (12).

4. The split step structure for a spiral staircase according to claim 3, characterized in that: The connecting piece is a screw rod (14).

5. The split step structure for a spiral staircase according to claim 4, characterized in that: The bridge frame assembly comprises a plurality of square tubes (15), and two adjacent square tubes (15) are connected via a rotation adjustment assembly.

6. The split step structure for a spiral staircase according to claim 5, characterized in that: A clamp (16) is installed on the square tube (15), and the screw rod (14) is installed on the clamp (16).

7. The split step structure for a spiral staircase according to claim 5, characterized in that: Each of the rotation adjustment components comprises two connecting plates (17), the two connecting plates (17) are hingedly arranged, and the connecting plates (17) are used to install the square tube (15).

8. The split step structure for a spiral staircase according to claim 7, characterized in that: Each of the connecting plates (17) has folded wings (18) on both sides and is used for inserting and installing the square tube (15).

9. The split step structure for a spiral staircase according to claim 8, characterized in that: The folding wing (18) is provided with a strip-shaped opening (19), and the strip-shaped opening (19) is provided with a first screw (20) for locking the other tube (15).

10. The split step structure for a spiral staircase according to claim 7, characterized in that: Two adjacent connecting plates (17) are locked together by a second screw (21).

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