Spiral stair

Abstract

The utility model relates to the technical field of steel structure stairs, in particular to a spiral stair, a rubber layer is arranged at one end of double-layer ultra-white frosted glass, and a nine-centimeter plate is fixedly installed on the surface of the top end of a third steel plate. The end, extending out of the third steel plate, of the double-layer ultra-white frosted glass is fixedly connected with the third steel plate located on the lower portion through a stainless steel plate, the inner top and the inner bottom of the stainless steel plate are bonded with the double-layer ultra-white frosted glass and the 9-millimeter plate correspondingly, and penetrating openings are vertically formed in the lower surface of the stainless steel plate, the 9-millimeter plate and the frosted rubber gasket correspondingly. Threaded grooves are formed in the lower surfaces of the mounting blocks, bolts are mounted in the threaded grooves in a threaded mode, and bolts are mounted in the threaded grooves in a threaded mode. By means of the structure, the glue line between the steel frame and the glass step can be extremely small, meanwhile, the stainless steel plate can cover the glue line, the stainless steel plate can be fixed by installing bolts at the bottom of the stainless steel plate, connection firmness is enhanced, the bolts are hidden, and attractiveness is guaranteed.

Description

Technical Field

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

[0002] In order to facilitate the traffic between upper and lower floors, a steel spiral staircase is often set up to solve the traffic problem between the upper and lower floors. The steel spiral staircase is fast to install and has high firmness, and is widely used.

[0003] The nodes between the steel frame and the glass steps in the existing steel structure spiral staircase are usually fixed by gluing or fixings such as screws and nuts. Gluing will have a large glue gap and poor stability, while fixings such as screws and nuts will affect the overall aesthetics. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the nodes between the steel frame and the glass steps in the existing steel structure spiral staircase are usually fixed by gluing or fixings such as screws and nuts. Gluing will have a large glue seam and poor stability, while using screw and nut fixings will affect the overall aesthetics. A spiral staircase is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spiral staircase, comprising a plate body and a circular tube, wherein two pieces of ultra-white tempered glass are symmetrically fixedly installed on the upper surface of the plate body, the circular tube is fixedly connected to the plate body, a plurality of first steel plates are fixedly installed on the surface of the circular tube, a second steel plate is fixedly installed on one end of the plurality of first steel plates away from the circular tube, a double-layer ultra-white frosted glass is fixedly installed on the surface of the second steel plate, two vertically adjacent pieces of the double-layer ultra-white frosted glass are fixedly connected via a Z-shaped third steel plate, a fourth steel plate is fixedly installed on one end of the plurality of double-layer ultra-white frosted glass away from the second steel plate, and a stainless steel handrail is fixedly installed on the surface of the fourth steel plate and the circular tube;

[0007] Frosted rubber gaskets are bonded to both ends of the lower surface of the double-layer ultra-white frosted glass, one end of the double-layer ultra-white frosted glass is provided with a rubber layer, a 9-cm plate is fixedly installed on the surface of the top end of the third steel plate, one end of the double-layer ultra-white frosted glass extending out of the third steel plate is fixedly connected to the third steel plate located below through a U-shaped stainless steel plate, the stainless steel plate covers the 9-cm plate and the frosted rubber gasket, the top and bottom of the stainless steel plate are respectively bonded to the double-layer ultra-white frosted glass and the 9-cm plate, the lower surface of the stainless steel plate, the 9-cm plate and the frosted rubber gasket are vertically opened with through-holes, the diameter of the through-holes on the lower surface of the stainless steel plate is larger than the sizes of the other through-holes, a mounting block is bonded to the lower surface of the double-layer ultra-white frosted glass, the lower surface of the mounting block is provided with threaded grooves corresponding to multiple through-hole positions, and bolts are threadedly installed in the threaded grooves.

[0008] Preferably, the surface of the stainless steel plate is titanium-plated and provided with anti-slip patterns.

[0009] Preferably, the surfaces of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are all coated with black anti-rust fluorocarbon paint.

[0010] Preferably, the distance between the upper surface of the stainless steel plate and the upper surface of the double-layer ultra-white frosted glass located below the stainless steel plate is millimeters.

[0011] Preferably, the surface of the stainless steel handrail is matte brushed.

[0012] Preferably, a plurality of strip-shaped flat irons are provided on the surface of the fourth steel plate, and the plurality of flat irons are arranged at equal distances.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Through the coordination between the 9cm board and the Z-shaped third steel plate, the glue seam between the steel frame and the glass step can be made extremely small. At the same time, the stainless steel plate can cover the glue seam, and bolts are arranged at the bottom of the stainless steel plate. During gluing, the bolts can be used to fix it, thereby enhancing the firmness of the connection. The bolts are hidden and cannot be seen from the outside, thus ensuring the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front three-dimensional structural schematic diagram of a spiral staircase proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of a spiral staircase proposed by the utility model;

[0017] Figure 3 This is a partial structural cross-sectional diagram of the double-layer ultra-white frosted glass and the third steel plate in a spiral staircase proposed by the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure in the middle.

[0019] In the figure: 1 plate body, 2 round tube, 3 first steel plate, 4 second steel plate, 5 double-layer ultra-white frosted glass, 6 third steel plate, 7 fourth steel plate, 8 stainless steel handrail, 9 frosted rubber gasket, 10 rubber layer, 11 9 cm plate, 12 stainless steel plate, 13 flat iron, 14 threaded groove, 15 bolt, 16 through-hole, 17 ultra-white tempered glass, 18 mounting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0022] Reference Figure 1-Figure 4 A spiral staircase comprises a plate body 1 and a circular tube 2, two ultra-white tempered glasses 17 are symmetrically fixedly installed on the upper surface of the plate body 1, the circular tube 2 is fixedly connected to the plate body 1, a plurality of first steel plates 3 are fixedly installed on the surface of the circular tube 2, a second steel plate 4 is fixedly installed on one end of the plurality of first steel plates 3 away from the circular tube 2, a double-layer ultra-white frosted glass 5 is fixedly installed on the surface of the second steel plate 4, two vertically adjacent double-layer ultra-white frosted glasses 5 are fixedly connected by a Z-shaped third steel plate 6, a fourth steel plate 7 is fixedly installed on one end of the plurality of double-layer ultra-white frosted glasses 5 away from the second steel plate 4, and a stainless steel handrail 8 is fixedly installed on the surface of the fourth steel plate 7 and the circular tube 2;

[0023] Both ends of the lower surface of the double-layer ultra-white frosted glass 5 are bonded with frosted rubber gaskets 9, one end of the double-layer ultra-white frosted glass 5 is provided with a rubber layer 10, a nine-centimeter plate 11 is fixedly installed on the surface of the top of the third steel plate 6, and one end of the double-layer ultra-white frosted glass 5 extending out of the third steel plate 6 is fixedly connected to the third steel plate 6 located below through a U-shaped stainless steel plate 12, the stainless steel plate 12 covers the nine-centimeter plate 11 and the frosted rubber gasket 9, and the top and bottom of the stainless steel plate 12 are bonded to the double-layer ultra-white frosted glass 5 and the nine-centimeter plate 11 respectively, and the lower surface of the stainless steel plate 12, the nine-centimeter plate 11 and the frosted rubber gasket 9 are vertically opened with through-holes 16, and the diameter of the through-hole 16 on the lower surface of the stainless steel plate 12 is larger than the size of the other through-holes 16, and a mounting block 18 is glued to the lower surface of the double-layer ultra-white frosted glass 5, and the lower surface of the mounting block 18 is provided with threaded grooves 14 corresponding to the positions of the plurality of through-holes 16, and bolts 15 are installed with the inner threads of the threaded grooves 14;

[0024] When it is necessary to install the double-layer ultra-white frosted glass 5, first, its lower surface is placed on two third steel plates 6, and the lower surface of the double-layer ultra-white frosted glass 5 extending out of the third steel plate 6 is glued to the upper surface of the third steel plate 6, and the glue seam is small, and then the stainless steel plate 12 is clamped on one end of the double-layer ultra-white frosted glass 5 extending out of the third steel plate 6 and the nine-centimeter plate 11 on the surface of the third steel plate 6 below it. At this time, the positions of the multiple through-holes 16 will correspond, and then the stainless steel plate 12 is glued to the double-layer ultra-white frosted glass 5 and the third steel plate 6, and finally the bolt 15 is vertically passed through the multiple through-holes 16, and then threadedly installed in the thread groove 14 until the end of the bolt 15 with a larger diameter is located in the through-hole 16 on the lower surface of the stainless steel plate 12. In this way, the bolt 15 can be hidden and cannot be seen from the outside, thereby ensuring the aesthetics and a stable connection.

[0025] The surface of the stainless steel plate 12 is titanium-plated and has anti-slip patterns;

[0026] Titanium plating uses the glow discharge of inert gas to ionize metal or alloy vapor. The ions are accelerated by the electric field and deposited on the negatively charged stainless steel plate 12, thereby forming a metal film with rich and bright colors. It has strong corrosion and oxidation resistance and good durability. The anti-slip pattern can increase the friction between the sole and its contact surface.

[0027] The surfaces of the first steel plate 3, the second steel plate 4, the third steel plate 6 and the fourth steel plate 7 are all coated with black anti-rust fluorocarbon paint, which has extraordinary weather resistance, anti-pollution, anti-corrosion, anti-rust and high decorative properties.

[0028] The distance between the upper surface of the stainless steel plate 12 and the upper surface of the double-layer ultra-white frosted glass 5 located below the stainless steel plate 12 is 189 mm;

[0029] The double-layer ultra-white frosted glass 5 has a depth of 189 mm, which conforms to human mechanics and improves walking comfort.

[0030] The surface of the stainless steel handrail 8 is treated with matte brushing to improve the aesthetics and reduce rust during use. The overall use value will also be relatively improved, extending the future service life. It will be more durable and its widespread use will be enhanced.

[0031] A plurality of strip-shaped flat irons 13 are provided on the surface of the fourth steel plate 7 , and the plurality of flat irons 13 are arranged at equal distances. The plurality of flat irons 13 can enhance the stability of the fourth steel plate 7 while improving the aesthetics.

[0032] In the utility model, when it is necessary to install the double-layer ultra-white frosted glass 5, first, its lower surface is placed on two third steel plates 6, and the lower surface of the double-layer ultra-white frosted glass 5 extending out of the third steel plate 6 is glued to the upper surface of the third steel plate 6, and the glue seam is small, and then the stainless steel plate 12 is clamped on one end of the double-layer ultra-white frosted glass 5 extending out of the third steel plate 6 and the nine-centimeter plate 11 on the surface of the third steel plate 6 below it. At this time, the positions of the multiple through-holes 16 will correspond, and then the stainless steel plate 12 is glued to the double-layer ultra-white frosted glass 5 and the third steel plate 6, and finally the bolt 15 is vertically passed through the multiple through-holes 16, and then threadedly installed in the thread groove 14 until the end of the bolt 15 with a larger diameter is located in the through-hole 16 on the lower surface of the stainless steel plate 12. In this way, the bolt 15 can be hidden and cannot be seen from the outside, thereby ensuring aesthetics and a stable connection.

[0033] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spiral staircase, comprising a plate body (1) and a circular tube (2), characterized in that: Two pieces of ultra-white tempered glass (17) are symmetrically fixedly mounted on the upper surface of the plate body (1); the circular tube (2) and the plate body (1) are fixedly connected; a plurality of first steel plates (3) are fixedly mounted on the surface of the circular tube (2); a second steel plate (4) is fixedly mounted on one end of the plurality of first steel plates (3) away from the circular tube (2); a double layer of ultra-white frosted glass (5) is fixedly mounted on the surface of the second steel plate (4); two vertically adjacent pieces of the double layer of ultra-white frosted glass (5) are fixedly connected via a Z-shaped third steel plate (6); a fourth steel plate (7) is fixedly mounted on one end of the plurality of double layer of ultra-white frosted glass (5) away from the second steel plate (4); and a stainless steel handrail (8) is fixedly mounted on the surface of both the fourth steel plate (7) and the circular tube (2); Both ends of the lower surface of the double-layer ultra-white frosted glass (5) are bonded with frosted rubber gaskets (9); one end of the double-layer ultra-white frosted glass (5) is provided with a rubber layer (10); a nine-centimeter plate (11) is fixedly mounted on the surface of the top of the third steel plate (6); one end of the double-layer ultra-white frosted glass (5) extending out of the third steel plate (6) is fixedly connected to the third steel plate (6) located below via a U-shaped stainless steel plate (12); the stainless steel plate (12) covers the nine-centimeter plate (11) and the frosted rubber gasket (9); the top and bottom portions of the stainless steel plate (12) are The stainless steel plate (12) is bonded to the double-layer ultra-white frosted glass (5) and the nine-centimeter plate (11), and the lower surface of the stainless steel plate (12), the nine-centimeter plate (11) and the frosted rubber gasket (9) are vertically provided with through-holes (16). The diameter of the through-hole (16) on the lower surface of the stainless steel plate (12) is larger than the diameter of the other through-holes (16). A mounting block (18) is bonded to the lower surface of the double-layer ultra-white frosted glass (5). The lower surface of the mounting block (18) is provided with thread grooves (14) corresponding to the positions of the plurality of through-holes (16), and bolts (15) are installed in the inner threads of the thread grooves (14).

2. A spiral staircase according to claim 1, characterized in that: The surface of the stainless steel plate (12) is titanium-plated and provided with anti-slip grooves.

3. A spiral staircase according to claim 1, characterized in that: The surfaces of the first steel plate (3), the second steel plate (4), the third steel plate (6) and the fourth steel plate (7) are all coated with black anti-rust fluorocarbon paint.

4. The spiral staircase according to claim 1, characterized in that: The distance between the upper surface of the stainless steel plate (12) and the upper surface of the double-layer ultra-white frosted glass (5) located below the stainless steel plate (12) is 189 millimeters.

5. The spiral staircase according to claim 1, characterized in that: The surface of the stainless steel handrail (8) is subjected to matte brushing treatment.

6. The spiral staircase according to claim 1, characterized in that: A plurality of strip-shaped flat irons (13) are provided on the surface of the fourth steel plate (7), and the plurality of flat irons (13) are arranged at equal distances.

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