Steel structure spiral stair connecting structure

Abstract

A steel structure spiral stair connecting structure belongs to the technical field of steel structure spiral stairs and comprises a supporting column, a fixing frame, a spiral stair, a fixing sleeve, a connecting structure and a mounting sleeve, the fixing sleeve, the mounting sleeve and the fixing frame are sequentially and fixedly mounted on the supporting column from bottom to top, and the connecting structure comprises a supporting rod, a connecting frame, a first inclined frame and a second inclined frame. The connecting frame is arranged on one side of the mounting sleeve, the second inclined frame is arranged at the top end of the connecting frame, the top end of the second inclined frame is connected with the bottom end of the fixing frame, the first inclined frame is arranged on one side of the second inclined frame, the bottom end of the first inclined frame is connected with the top end of the connecting frame, and a triangular structure is formed between the second inclined frame and the first inclined frame. One end of the supporting rod is connected with one side of the fixing sleeve, and the spiral staircase is fixedly installed on the fixing frame. By means of the connecting structure, the defect that an existing steel structure spiral stair connecting structure is bent and even fractured when the bearing weight is increased can be overcome.

Description

Technical Field

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

[0002] The steel spiral staircase is a curved staircase with steel components as the main structural support. This type of staircase is very strong and not easy to deform. It has the characteristics of high strength, high hardness and structural stability. Therefore, it has a strong bearing capacity and a fixed cross-section. In addition, it has a wide range of applications and can be used indoors, outdoors, in exhibition halls and other places, and is not easily affected by other building structures.

[0003] When installing a steel spiral staircase, due to its long length, it is generally installed in sections on the supporting columns. During the installation, a connecting structure is required to connect it. However, when the traditional connecting structure supports the overall weight of the steel spiral staircase, it is easy to bend or even break due to the increase in the load-bearing weight on the steel spiral staircase. Therefore, it is urgent to study a new steel spiral staircase connecting structure to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel structure spiral staircase connection structure for solving the defect that the existing steel structure spiral staircase connection structure bends or even breaks when the load-bearing weight increases.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a steel structure spiral staircase connection structure, including a support column, a fixing sleeve, a connection structure, a fixing frame, a spiral staircase and a mounting sleeve, the fixing sleeve, the mounting sleeve and the fixing frame are fixedly installed on the support column in sequence from bottom to top, the connection structure includes a support rod, a connecting frame, a first inclined frame and a second inclined frame, the connecting frame is arranged on one side of the mounting sleeve, the second inclined frame is arranged on the top of the connecting frame, the top of the second inclined frame is connected to the bottom end of the fixing frame, the first inclined frame is arranged on one side of the second inclined frame, the bottom end of the first inclined frame is connected to the top of the connecting frame, the second inclined frame and the first inclined frame form a triangular structure, the support rod is arranged at the bottom end of the connecting frame, one end of the support rod is connected to one side of the fixing sleeve, and the spiral staircase is fixedly installed on the fixing frame.

[0006] Furthermore, there are two groups of triangular structures formed by the second oblique frame and the first oblique frame, which are symmetrically distributed on the top of the connecting frame.

[0007] Furthermore, the fixing sleeve, the mounting sleeve and the fixing frame are respectively connected to the supporting column by welding.

[0008] Furthermore, the connecting frame is welded to the mounting sleeve, the second oblique frame is welded to the fixed frame and the connecting frame, the first oblique frame is welded to the second oblique frame and the connecting frame, and the support rod is welded to the connecting frame and the fixed sleeve.

[0009] Furthermore, a fixing structure is provided at the top of the spiral staircase, and the fixing structure includes a mounting groove, a mounting bolt and a fixing hole. The mounting groove is opened inside the spiral staircase, and the fixing hole is opened inside the top of the fixing frame. The mounting bolt passes through the mounting groove and is inserted into the fixing hole, and the mounting bolt is threadedly connected to the fixing hole.

[0010] Furthermore, there are two groups of the fixing structures, which are respectively arranged on both sides of the end of the spiral staircase.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting up the fixed frame, the spiral staircase can be supported, and by the cooperation of the first inclined frame, the second inclined frame and the connecting frame, a triangular structure can be formed, thereby providing a reinforced support for the fixed frame, so that the fixed frame can bear a larger weight, and by using the support rod, the connecting frame can be supported. Therefore, by setting up the above structure, the overall strength of the fixed frame can be strengthened, making it stronger when in use and less prone to breakage and bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the embodiment shown in another angle;

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 4 for Figure 1 A schematic diagram of a partial top view of the structure of the embodiment shown;

[0017] Figure 5 for Figure 1 A partial bottom view of the structure of the embodiment shown;

[0018] Explanation of the reference numerals: 1. Support column; 2. Fixing sleeve; 3. Connection structure; 301. Support rod; 302. Connecting frame; 303. First inclined frame; 304. Second inclined frame; 4. Fixing frame; 5. Spiral staircase; 6. Mounting sleeve; 7. Fixing structure; 701. Mounting groove; 702. Mounting bolt; 703. Fixing hole. DETAILED DESCRIPTION

[0019] 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.

[0020] Reference Figures 1 to 5 A steel structure spiral staircase connection structure, comprising a support column 1, a fixing sleeve 2, a connection structure 3, a fixing frame 4, a spiral staircase 5 and an installation sleeve 6, wherein the fixing sleeve 2, the installation sleeve 6 and the fixing frame 4 are fixedly installed on the support column 1 in sequence from bottom to top, the connection structure 3 comprises a support rod 301, a connecting frame 302, a first oblique frame 303 and a second oblique frame 304, the connecting frame 302 is arranged at one side of the installation sleeve 6, the second oblique frame 304 is arranged at the top of the connecting frame 302, the top of the second oblique frame 304 is connected to the bottom end of the fixing frame 4, the first oblique frame 303 is arranged at one side of the second oblique frame 304, the bottom end of the first oblique frame 303 is connected to the top of the connecting frame 302, and a triangular structure is formed between the second oblique frame 304 and the first oblique frame 303, the support rod 301 is arranged at the bottom end of the connecting frame 302, one end of the support rod 301 is connected to one side of the fixing sleeve 2, and the spiral staircase 5 is fixedly installed on the fixing frame 4.

[0021] In this embodiment, there are two groups of triangular structures formed by the second oblique frames 304 and the first oblique frames 303 , which are symmetrically distributed on the top of the connecting frame 302 .

[0022] In this embodiment, the fixing sleeve 2, the installation sleeve 6 and the fixing frame 4 are respectively connected to the supporting column 1 by welding.

[0023] In this embodiment, the connecting frame 302 is welded to the mounting sleeve 6, the second oblique frame 304 is welded to the fixed frame 4 and the connecting frame 302, the first oblique frame 303 is welded to the second oblique frame 304 and the connecting frame 302, and the support rod 301 is welded to the connecting frame 302 and the fixed sleeve 2.

[0024] In this embodiment, a fixing structure 7 is provided at the top of the spiral staircase 5, and the fixing structure 7 includes a mounting groove 701, a mounting bolt 702 and a fixing hole 703. The mounting groove 701 is provided inside the spiral staircase 5, and the fixing hole 703 is provided inside the top of the fixing frame 4. The mounting bolt 702 passes through the mounting groove 701 and is inserted into the fixing hole 703. The mounting bolt 702 is threadedly connected with the fixing hole 703 to fasten the spiral staircase 5. The fixing structure 7 has two groups, which are respectively provided at both sides of the end of the spiral staircase 5.

[0025] Installation process and working principle:

[0026] When installing the spiral staircase 5, the spiral staircase 5 is installed on the top of the fixing frame 4. After the installation is completed, one end of the installation bolt 702 is inserted into the fixing hole 703 through the installation groove 701. After the insertion is completed, the installation bolt 702 is rotated. With the rotation between the installation bolt 702 and the fixing hole 703, the spiral staircase 5 is installed, so that the spiral staircase 5 is installed on the top of the fixing frame 4 and is not easy to fall off, thereby completing the installation work;

[0027] After the spiral staircase 5 is installed, the setting of the fixing frame 4 can support the spiral staircase 5, and through the cooperation of the first inclined frame 303, the second inclined frame 304 and the connecting frame 302, a triangular structure can be formed to support the fixing frame 4, so that the fixing frame 4 can bear a larger weight and is not easy to bend, and through the use of the support rod 301, the connecting frame 302 can be supported. Therefore, through the setting of the above structure, the overall strength of the fixing frame 4 can be strengthened, making it stronger when in use and not easy to break and bend.

[0028] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel structure spiral staircase connection structure, comprising a support column, a fixing frame and a spiral staircase, characterized in that: A fixing sleeve, a connecting structure and an installation sleeve are also provided, and the fixing sleeve, the installation sleeve and the fixing frame are fixedly installed on the supporting column in sequence from bottom to top, and the connecting structure includes a supporting rod, a connecting frame, a first inclined frame and a second inclined frame, the connecting frame is arranged on one side of the installing sleeve, the second inclined frame is arranged on the top end of the connecting frame, the top end of the second inclined frame is connected to the bottom end of the fixing frame, the first inclined frame is arranged on one side of the second inclined frame, the bottom end of the first inclined frame is connected to the top end of the connecting frame, and a triangular structure is formed between the second inclined frame and the first inclined frame, the supporting rod is arranged at the bottom end of the connecting frame, one end of the supporting rod is connected to one side of the fixing sleeve, and the spiral staircase is fixedly installed on the fixing frame.

2. The steel spiral staircase connection structure according to claim 1, characterized in that: There are two groups of triangular structures formed by the second oblique frame and the first oblique frame, which are symmetrically distributed on the top of the connecting frame.

3. The steel spiral staircase connection structure according to claim 1 or 2, characterized in that: The fixing sleeve, the installation sleeve and the fixing frame are respectively connected to the supporting column by welding.

4. The steel spiral staircase connection structure according to claim 1 or 2, characterized in that: The connecting frame is welded to the mounting sleeve, the second oblique frame is welded to the fixed frame and the connecting frame, the first oblique frame is welded to the second oblique frame and the connecting frame, and the supporting rod is welded to the connecting frame and the fixed sleeve.

5. The steel spiral staircase connection structure according to claim 1 or 2, characterized in that: A fixing structure is provided at the top of the spiral staircase, and the fixing structure includes a mounting groove, a mounting bolt and a fixing hole. The mounting groove is opened inside the spiral staircase, and the fixing hole is opened inside the top of the fixing frame. The mounting bolt passes through the mounting groove and is inserted into the fixing hole, and the mounting bolt is threadedly connected to the fixing hole.

6. The steel spiral staircase connection structure according to claim 5, characterized in that: There are two groups of fixed structures, which are respectively arranged on both sides of the end of the spiral staircase.

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