Steel structure stair

Abstract

The utility model relates to the technical field of steel structures, in particular to a steel structure stair which comprises a stair frame, a plurality of stair plates are installed on the stair frame, each stair plate comprises a horizontally-arranged step plate and a vertically-arranged head-on plate, and the step plates and the head-on plate are integrated. The step plate and the head-on plate form a structure with an external corner outside, the lower surface of the step plate and the lower surface of the head-on plate form an internal corner structure, a penetrating pipe penetrating through the two sides of the lower surface of the step plate is arranged below the step plate, the penetrating strip is installed in the penetrating pipe and penetrates through the penetrating pipe to be connected, and bolts are arranged at the two ends of the penetrating strip. Mounting holes are formed in the stair frame, the bolts penetrate through the mounting holes to be connected, and nuts are mounted on the bolts. The utility model has the advantages of simple installation, strong bearing capacity and difficult deformation.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, specifically to steel structure staircases. Background Technology

[0002] The steel structure staircase includes a staircase frame on which multiple stair treads are installed. Each stair tread includes horizontally arranged steps and vertically arranged facing panels. The steps and facing panels are integrally formed, creating a structure with externally convex corners.

[0003] In existing technologies, the stair slabs on steel structure staircases are welded to the staircase frame. In addition, the stair slabs do not have reinforcing ribs, which has the disadvantages of troublesome installation, low load-bearing capacity, and easy deformation, thus affecting the use effect of steel structure staircases. Summary of the Invention

[0004] The purpose of this utility model is to address the above-mentioned shortcomings by providing a steel structure staircase that is easy to install, has strong load-bearing capacity, and is not easily deformed.

[0005] The technical solution of this utility model is implemented as follows: A steel structure staircase includes a staircase frame, on which multiple stair treads are installed. Each stair tread includes a horizontally arranged step tread and a vertically arranged facing tread. The step tread and facing tread are integral, forming an externally convex corner structure and an internally convex corner structure. The staircase is characterized by having a through-tube penetrating both sides of the underside of the step tread, and a through-strip installed in the through-tube. The through-strip passes through the through-tube and is connected. Bolts are present at both ends of the through-strip. The staircase frame has mounting holes, through which the bolts are connected, and nuts are installed on the bolts.

[0006] Furthermore, the aforementioned tubes include a central tube installed in the middle of the width direction of the step plate and a corner tube installed at the inside corner.

[0007] Furthermore, the tube is a square tube with a square exterior and a square interior, and the strip is a square structure that fits into the interior of the tube.

[0008] Furthermore, there is a lining board underneath the stair tread, and a layer of sound insulation cotton between the stair tread and the lining board.

[0009] The beneficial effects of this utility model are: such a steel structure staircase has the advantages of simple installation, strong load-bearing capacity, and resistance to deformation. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the steel structure staircase of this utility model.

[0011] Figure 2 yes Figure 1 A cross-sectional view along the A-A direction.

[0012] Figure 3 This is a structural schematic diagram of the stair tread of this utility model.

[0013] Figure 4 yes Figure 3 A schematic diagram of the structure in the B-B direction of one embodiment.

[0014] Figure 5 yes Figure 3 A cross-sectional view along the B-B direction of another embodiment.

[0015] The components include: 1. Staircase frame; 2. Staircase slab; 21. Step tread; 22. Front panel; 3. Through pipe; 4. Through strip; 41. Bolt; 5. Lining plate; 6. Sound insulation cotton. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] As shown in the figure, a steel structure staircase includes a staircase frame 1, on which multiple stair treads 2 are installed. Each stair tread includes a horizontally arranged step tread 21 and a vertically arranged facing tread 22. The step tread and facing tread are integrally formed, with an externally convex corner structure and an internally convex corner structure on the underside. The staircase is characterized by having a through-tube 3 penetrating both sides of the underside of the step tread, and a through-strip 4 installed in the through-tube. The through-strip passes through the through-tube and is connected to the through-tube. Bolts 41 are located at both ends of the through-strip. The staircase frame has mounting holes, through which the bolts are connected, and nuts are installed on the bolts.

[0018] During installation, the strip is passed through the mounting hole and the tube, and the bolts on the outside of the tube are tightened for installation. This utility model has the advantages of simple installation and strong load-bearing capacity because the tube is set under the step plate.

[0019] Furthermore, the aforementioned tubes include a central tube installed in the middle of the width direction of the step plate and a corner tube installed at the inside corner.

[0020] Furthermore, the tube is a square tube with a square exterior and a square interior, and the strip is a square structure that fits into the interior of the tube.

[0021] This design also has the advantage of maintaining stability on the step surface even after prolonged use.

[0022] Furthermore, there is a lining board 5 underneath the stair tread, and a layer of sound insulation cotton 6 between the stair tread and the lining board.

[0023] This design also has the advantage of better noise reduction.

[0024] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A steel structure stair comprising a stair frame on which a plurality of stair boards are installed, said stair boards comprising horizontally arranged tread boards and vertically arranged riser boards, said tread boards and riser boards being integrated, said tread boards and riser boards forming a structure with an external external angle, said tread boards and riser boards forming a structure with an internal internal angle below, characterized in that: The stair tread has a through tube extending through both sides of the bottom of the tread, and also includes a through strip installed in the through tube. The through strip passes through the through tube and is connected. The two ends of the through strip have bolts. The stair frame has mounting holes. The bolts pass through the mounting holes and are connected. Nuts are installed on the bolts. ​ 2. The steel structure stair according to claim 1, characterized by: The aforementioned tubes include a central tube installed in the middle of the width direction of the step board and a corner tube installed in the inside corner.

3. A steel structure stair according to claim 1 or 2, characterized in that: The tube is a square tube with a square exterior and a square interior, and the strip is a square structure that fits into the interior of the tube.

4. The steel structure stair according to claim 1 or 2, characterized by: The stair tread has a lining board underneath, and there is a layer of sound insulation cotton between the stair tread and the lining board.

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