Modularized stair structure and mounting method thereof

Abstract

The invention relates to the technical field of modular building structures, and discloses a modular stair structure and an installation method thereof.The modular stair structure comprises stair beams, step plates, fixing pieces and handrail pieces; a fixing piece is arranged in a step plate, the step plate is arranged on a ladder beam, the fixing piece comprises a horizontal section and a vertical section which are connected, the horizontal section is arranged in the step plate, the vertical section extends downwards to be fixedly connected with the ladder beam, and a vertical rod of a handrail piece penetrates through the step plate to extend to be fixedly connected with the horizontal section. According to the modularized stair structure, through the arrangement of the fixing pieces, the vertical rods are fixed, the situation that the stability of the vertical rods is affected due to the fact that the vertical rods are directly fixed to the step plates is avoided, meanwhile, damage to the step plates by the fastening pieces is avoided, and the integrity and attractiveness of the structure are improved.

Description

Technical Field

[0001] The invention relates to the technical field of modular building structures, and in particular to a modular staircase structure and an installation method thereof. Background Art

[0002] Composite steel stair railing construction is an important part of building stair construction, especially in steel structure buildings. As one of the key components of the staircase, the composite steel stair railing not only needs to meet the decorative effect, but also ensures that it has sufficient stability and load-bearing capacity to effectively ensure safety.

[0003] However, in the prior art, the railing uprights are usually fixed directly to the stair treads. For traditional steel or concrete tread structures, this fixing method can meet the force requirements. However, in composite steel structures, the treads are mostly made of FRP (fiber reinforced plastic) plates. Since FRP plates have low strength and rigidity, directly fixing the railing uprights may cause damage to the treads or loosening of the railings, and cannot provide sufficient stability. Summary of the invention

[0004] In view of this, the present invention provides a modular staircase structure and an installation method thereof to solve the problem of poor connection stability between stair railings and treads in the prior art.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In the first aspect, the present invention provides a modular staircase structure, comprising: a ladder beam, a tread, a fixing member and a railing member; the tread is arranged on the ladder beam; the fixing member comprises a vertical section and a horizontal section connected to each other, the horizontal section is arranged between the treads and located at the end of the tread, the vertical section extends downward and one side is in contact with the ladder beam; the railing member comprises a vertical rod, the vertical rod is passed through the tread to extend to be fixedly connected to the horizontal section.

[0007] The invention has the following advantages: by setting a fixing piece in the tread, the tread is set on the ladder beam, the fixing piece includes a horizontal section and a vertical section connected to each other, the horizontal section is set in the tread, the vertical section extends downward to be fixedly connected with the ladder beam, and the vertical rod of the railing member is passed through the tread to extend to be fixedly connected with the horizontal section. The modular staircase structure realizes the fixing of the vertical rod by setting the fixing piece, avoids the vertical rod being directly fixed to the tread, and affects the stability of the vertical rod, and avoids the damage of the fastener to the tread, thereby improving the integrity and aesthetics of the structure.

[0008] According to the first aspect of the present invention, the tread comprises a stacked FRP pedal and a solid wood pedal; the FRP pedal is arranged on the ladder beam, the solid wood pedal is located above the FRP pedal, and the horizontal section is located between the FRP pedal and the solid wood pedal.

[0009] According to the first aspect of the embodiment of the present invention, the modular staircase structure also includes a first flame retardant base layer, which is arranged between the FRP pedal and the solid wood pedal. The first flame retardant base layer is provided with a first accommodating groove. The horizontal section is arranged in the first accommodating groove. The thickness of the first flame retardant base layer is consistent with the thickness of the horizontal section.

[0010] According to the first aspect of the present invention, the solid wood pedal is provided with a mounting hole, and the mounting hole is arranged opposite to the fixing member so that the horizontal section is located under the projection area of ​​the mounting hole, and the vertical rod is suitable for passing through the mounting hole to be fixedly connected with the horizontal section.

[0011] According to the first aspect of the present invention, the number of the vertical poles is consistent with the number of the fixing members, and the vertical poles and the fixing members are both made of steel structure material.

[0012] According to an embodiment of the first aspect of the present invention, the area of ​​the horizontal segment is larger than the projected area of ​​the mounting hole.

[0013] According to the first aspect of the present invention, the modular staircase structure further comprises a second flame retardant base layer, the second flame retardant base layer is arranged on the side of the ladder beam, the second flame retardant base layer is provided with a second receiving groove, the vertical section is located in the second receiving groove, and the thickness of the second flame retardant base layer is consistent with the thickness of the vertical section;

[0014] A galvanized square tube is provided at the bottom of the side of the ladder beam, and the galvanized square tube is flush with the side of the ladder beam. The upper part of the second flame retardant base layer is fixedly connected to the first flame retardant base layer, and the lower part of the second flame retardant base layer is fixedly connected to the galvanized square tube.

[0015] According to an embodiment of the first aspect of the present invention, a decorative coating is provided on the outer surface of the second flame retardant base layer.

[0016] In a second aspect, the present invention further provides a method for installing a modular staircase structure, comprising the following steps:

[0017] An FRP pedal is arranged on the ladder beam, and a fixing piece is installed on the FRP according to the position of the upright of the handrail, so that the horizontal section of the fixing piece is fixedly connected to the FRP pedal, and the vertical section of the fixing piece is fixedly connected to the side of the ladder beam;

[0018] The horizontal section is opposite to the first receiving groove of the first flame retardant base layer, the first flame retardant base layer is placed on the FRP pedal, a mounting hole is opened on the solid wood pedal, and the solid wood pedal is bonded to the first flame retardant base layer, and the mounting hole, the first receiving groove and the horizontal section are arranged opposite to each other in sequence along the vertical direction;

[0019] The vertical rod of the railing member is inserted into the mounting hole and the first receiving groove to be welded and fixed to the horizontal section;

[0020] A galvanized square tube is arranged at the bottom of the side of the ladder beam, and the upper part of the second flame retardant base layer is fixedly connected to the first flame retardant base layer, and the lower part of the second flame retardant base layer is fixedly connected to the galvanized square tube;

[0021] A decorative coating is disposed on the outer surface of the second flame retardant base layer.

[0022] According to the second aspect of the present invention, the mounting hole is shielded. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a modular staircase structure according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A local schematic diagram is shown.

[0026] Description of reference numerals:

[0027] 1. Ladder beam; 11. Galvanized square tube; 2. Tread; 21. FRP pedal; 22. Solid wood pedal; 23. First flame retardant base layer; 221. Mounting hole; 231. First receiving groove; 3. Fixing piece; 31. Vertical section; 32. Horizontal section; 4. Railing; 41. Vertical pole; 5. Second flame retardant base layer; 51. Second receiving groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figure 1 and Figure 2 As shown, in the first aspect of the present invention, the present invention provides a modular staircase structure, comprising: a ladder beam 1, a tread 2, a fixing member 3 and a handrail member 4; the tread 2 is arranged on the ladder beam 1; the fixing member 3 comprises a vertical section 31 and a horizontal section 32 connected to each other, the horizontal section 32 is arranged between the treads 2 and located at the end of the tread 2, the vertical section 31 extends downward and one side is in contact with the ladder beam 1; the handrail member 4 comprises a vertical rod 41, the vertical rod 41 is passed through the tread 2 to extend to be fixedly connected with the horizontal section 32.

[0033] Specifically, by setting the fixing member 3 in the tread 2, the tread 2 is set on the ladder beam 1, the fixing member 3 includes a horizontal section 32 and a vertical section 31 connected to each other, the horizontal section 32 is set in the tread 2, the vertical section 31 extends downward to be fixedly connected with the ladder beam 1, and the vertical rod 41 of the handrail member 4 is passed through the tread 2 to extend to be fixedly connected with the horizontal section 32. The modular staircase structure realizes the fixing of the vertical rod 41 through the setting of the fixing member 3, avoids the vertical rod 41 being directly fixed to the tread 2, and affects the stability of the vertical rod 41, and at the same time avoids the damage of the fastener to the tread 2, thereby improving the integrity and aesthetics of the structure.

[0034] It is understandable that the ladder beam 1, as the main supporting component of the stairs, is made of high-strength steel or aluminum alloy to ensure its bearing capacity. The tread 2 is fixed on the ladder beam 1 for people to walk on. The fixing member 3 has two parts: a vertical section 31 and a horizontal section 32. The horizontal section 32 is located between the treads 2 and close to the ends of the treads 2. The horizontal section 32 is connected to the vertical rod 41 to provide support for the railing member 4. The vertical section 31 extends downward from the horizontal section 32 and fits with one side of the ladder beam 1, thereby achieving a fixed connection with the ladder beam 1.

[0035] In the first aspect embodiment of the present invention, the tread 2 includes a stacked FRP pedal 21 and a solid wood pedal 22; the FRP pedal 21 is arranged on the ladder beam 1, the solid wood pedal 22 is located above the FRP pedal 21, and the horizontal section 32 is located between the FRP pedal 21 and the solid wood pedal 22.

[0036] Specifically, the tread 2 is composed of FRP (fiber reinforced plastic) and solid wood laminated together. The FRP pedal 21 is tightly mounted on the ladder beam 1 to play a role of bearing and anti-slip, and the solid wood pedal 22 is located above the FRP pedal 21 to improve the aesthetics and comfort. The horizontal section 32 is arranged between the FRP pedal 21 and the solid wood pedal 22, and the vertical rod 41 is passed through the solid wood pedal 22 to be fixedly connected with the horizontal section 32.

[0037] It is understandable that the vertical rod 41 and the fixing member 3 are both made of high-strength steel or aluminum alloy, and the vertical rod 41 and the horizontal section 32 are fixed by welding to achieve a stable connection. The vertical rod 41 passes through the step board 2 and extends to the horizontal section 32 of the fixing member 3, and is fixedly connected to the horizontal section 32 by welding or other means to provide support for the railing. The vertical rod 41 and the fixing member 3 are both made of steel structure materials, which ensures the durability and corrosion resistance of the structure.

[0038] In the first aspect embodiment of the present invention, the modular staircase structure also includes a first flame retardant base layer 23, which is arranged between the FRP pedal 21 and the solid wood pedal 22. The first flame retardant base layer is provided with a first accommodating groove 231, and the horizontal section 32 is arranged in the first accommodating groove 231. The thickness of the first flame retardant base layer 23 is consistent with the thickness of the horizontal section 32.

[0039] Specifically, a first flame retardant base layer 23 is further provided between the FRP pedal 21 and the solid wood pedal 22, and the first flame retardant base layer 23 is provided with a first receiving groove 231 for accommodating the horizontal section 32 of the fixing member 3. The thickness of the first flame retardant base layer 23 is consistent with the horizontal section 32 of the fixing member 3, so that when the solid wood pedal 22 is installed on the first flame retardant base layer 23, the first flame retardant base layer 23 and the horizontal section 32 can be pressed tightly to ensure a compact and stable structure.

[0040] In the first embodiment of the present invention, the solid wood pedal 22 is provided with a mounting hole 221, and the mounting hole 221 is arranged opposite to the fixing member 3 so that the horizontal section 32 is located under the projection area of ​​the mounting hole 221, and the vertical rod 41 is suitable for penetrating the mounting hole 221 to be fixedly connected with the horizontal section 32.

[0041] Specifically, the solid wood pedal 22 is provided with a mounting hole 221 , and the vertical rod 41 is passed through the mounting hole 221 to be fixedly connected with the horizontal section 32 . The horizontal section 32 is located under the projection area of ​​the mounting hole 221 , thereby ensuring that the vertical rod 41 is firmly connected with the horizontal section 32 .

[0042] In the first embodiment of the present invention, the number of the vertical poles 41 is consistent with the number of the fixing members 3, and the vertical poles 41 and the fixing members 3 are both made of steel structure material.

[0043] Specifically, the railing member 4 is installed on the step board 2, and includes a plurality of vertical rods 41. The number of the vertical rods 41 is consistent with the number of the fixing members 3, and they are relatively arranged to ensure that each vertical rod 41 is passed through the solid wood pedal 22 to be fixedly connected to the horizontal section 32.

[0044] In the first embodiment of the present invention, the area of ​​the horizontal section 32 is larger than the projected area of ​​the mounting hole 221 .

[0045] In the first embodiment of the present invention, the modular staircase structure further includes a second flame retardant base layer 5, which is arranged on the side of the ladder beam 1, and the second flame retardant base layer 5 is provided with a second accommodating groove 51, and the vertical section 31 is located in the second accommodating groove 51, and the thickness of the second flame retardant base layer 5 is consistent with the thickness of the vertical section 31;

[0046] A galvanized square tube 11 is provided at the bottom of the side of the ladder beam 1, and the galvanized square tube 11 is flush with the side of the ladder beam 1. The upper part of the second flame retardant base layer 5 is fixedly connected to the first flame retardant base layer 23, and the lower part of the second flame retardant base layer 5 is fixedly connected to the galvanized square tube 11.

[0047] Specifically, a second flame retardant base layer 5 is installed on the side of the ladder beam 1 to play a role in fire isolation. The second flame retardant base layer 5 is flush with the galvanized square tube 11 on the side of the ladder beam 1 and is connected in a fixed manner to ensure that the spread of fire can be delayed in the event of a fire. The upper part of the second flame retardant base layer 5 is fixedly connected to the first flame retardant base layer 23 by an adhesive or bolt, and the lower part is fixedly connected to the galvanized square tube 11, further enhancing the rigidity and stability of the overall structure.

[0048] In the first embodiment of the present invention, a decorative coating is provided on the outer surface of the second flame retardant base layer 5 .

[0049] Specifically, in order to ensure aesthetics, a decorative coating is applied on the outer surface of the second flame retardant base layer 5 .

[0050] In a second aspect, the present invention further provides a method for installing a modular staircase structure, comprising the following steps:

[0051] An FRP pedal 21 is arranged on the ladder beam 1, and a fixing member 3 is installed on the FRP according to the position of the upright 41 of the handrail member 4, so that the horizontal section 32 of the fixing member 3 is fixedly connected to the FRP pedal 21, and the vertical section 31 of the fixing member 3 is fixedly connected to the side of the ladder beam 1;

[0052] The horizontal section 32 is opposite to the first receiving groove 231 of the first flame retardant base layer 23. The first flame retardant base layer 23 is placed on the FRP pedal 21. A mounting hole 221 is opened on the solid wood pedal 22. The solid wood pedal 22 is bonded to the first flame retardant base layer 23. The mounting hole 221, the first receiving groove 231 and the horizontal section 32 are arranged opposite to each other in sequence along the vertical direction.

[0053] The vertical rod 41 of the railing member 4 is inserted into the mounting hole 221 and the first receiving groove 231 to be welded and fixed to the horizontal section 32;

[0054] A galvanized square tube 11 is provided at the bottom of the side of the ladder beam 1, and the upper part of the second flame retardant base layer 5 is fixedly connected to the first flame retardant base layer 23, and the lower part of the second flame retardant base layer 5 is fixedly connected to the galvanized square tube 11;

[0055] A decorative coating is provided on the outer surface of the second flame retardant base layer 5 .

[0056] Specifically, the fixing member 3 is a pre-processed part, which is formed in one piece by pressing or casting a galvanized steel plate; the FRP pedal 21 is installed on the ladder beam 1, and after the installation position of the fixing member 3 is determined according to the size of the railing member 4, the horizontal section 32 of the fixing member 3 is centrally fixed to the end of the FRP pedal 21, and the vertical section 31 is abutted and fixed on one side of the ladder beam 1; the vertical section 31 is fixedly connected to the ladder beam 1 by welding, and anti-rust paint is evenly applied on the welding position;

[0057] Select the first flame retardant base layer 23, and bond the first flame retardant base layer 23 to the FRP pedal 21. During the bonding process, the receiving groove and the horizontal section 32 need to be opposite to each other to ensure that the horizontal section 32 is located in the receiving groove;

[0058] According to the position of the horizontal section 32, a mounting hole 221 is opened on the corresponding solid wood pedal 22, and then the mounting hole 221 is aligned with the horizontal section 32, and the solid wood pedal 22 is bonded to the first flame retardant base layer 23;

[0059] The vertical pole 41 is inserted into the mounting hole 221 to be welded and fixed to the horizontal section 32. To ensure the strength and integrity of the welding, the size of the mounting hole 221 must be larger than the size of the column, and the area of ​​the horizontal section 32 must be larger than the projected area of ​​the mounting hole 221, so as to ensure that the vertical pole 41 is completely welded to the horizontal section 32. After welding, anti-rust paint must be applied to the welding point to ensure the structural strength.

[0060] A welded galvanized square tube 11 is installed at the bottom of the side of the ladder beam 1 to provide an installation foundation for the second flame retardant base layer 5. It should be noted that the outer side of the galvanized square tube 11 must be flush with the side of the ladder beam 1. The second flame retardant base layer 5 is provided with a second accommodating groove 51 according to the position of the fixing member 3 to avoid the vertical section 31 to ensure a compact and fixed structure. The upper part of the second flame retardant base layer 5 is fixed to the first flame retardant base layer 23, and the lower part is fixedly connected to the galvanized square tube 11. Both the upper and lower parts are fixed by fasteners, which are self-tapping fasteners. After completing the installation of the second flame retardant base layer 5, a decorative coating is installed on the side of the ladder beam 1. Specifically, fix the paper-faced gypsum board on the second flame-retardant base layer 5 through self-tapping screws, apply anti-rust paint on the self-tapping screws, level the uneven parts on the nail holes painted with anti-rust paint, smooth them with sandpaper after the putty is dry, and sweep away the dust; stick the gypsum board joints with elastic bandages, and fill and smooth them horizontally and vertically during operation, and remove excess putty. If there are still potholes and uneven places, apply another layer of gypsum putty; apply putty twice, and use sandpaper after each layer of putty is dry to smooth the putty, and clean up the dust after grinding; apply two coats of latex paint.

[0061] In the second embodiment of the present invention, the mounting hole 221 is shielded.

[0062] Specifically, the shielding member is covered on the mounting hole 221 to shield the mounting hole 221 .

[0063] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A modular staircase structure, characterized in that: include: Ladder beam (1); Treads (2); provided on the ladder beam (1); A fixing member (3) comprising a vertical section (31) and a horizontal section (32) connected to each other, wherein the horizontal section (32) is arranged between the treads (2) and located at the end of the treads (2), and the vertical section (31) extends downward and one side is in contact with the ladder beam (1); A railing member (4), the railing member (4) comprising a vertical rod (41), the vertical rod (41) passing through the step board (2) to extend to be fixedly connected to the horizontal section (32).

2. The modular staircase structure according to claim 1, characterized in that The tread plate (2) comprises a stacked FRP pedal (21) and a solid wood pedal (22); the FRP pedal (21) is arranged on the ladder beam (1), the solid wood pedal (22) is located above the FRP pedal (21), and the horizontal section (32) is located between the FRP pedal (21) and the solid wood pedal (22).

3. The modular staircase structure according to claim 2, characterized in that It also includes a first flame retardant base layer (23) disposed between the FRP pedal (21) and the solid wood pedal (22); the first flame retardant base layer is provided with a first receiving groove (231); the horizontal section (32) is disposed in the first receiving groove (231); and the thickness of the first flame retardant base layer (23) is consistent with the thickness of the horizontal section (32).

4. The modular staircase structure according to claim 3, characterized in that: The solid wood pedal (22) is provided with a mounting hole (221), and the mounting hole (221) is arranged opposite to the fixing member (3) so that the horizontal section (32) is located below the projection area of ​​the mounting hole (221), and the vertical rod (41) is suitable for penetrating the mounting hole (221) to be fixedly connected with the horizontal section (32).

5. The modular staircase structure according to claim 1, characterized in that The number of the vertical poles (41) is consistent with the number of the fixing members (3), and the vertical poles (41) and the fixing members (3) are both made of steel structure material.

6. The modular staircase structure according to claim 4, characterized in that The area of ​​the horizontal section (32) is larger than the projected area of ​​the mounting hole (221).

7. The modular staircase structure according to claim 3, characterized in that: It also includes a second flame retardant base layer (5), the second flame retardant base layer (5) is arranged on the side of the ladder beam (1), the second flame retardant base layer (5) is provided with a second containing groove (51), the vertical section (31) is located in the second containing groove (51), and the thickness of the second flame retardant base layer (5) is consistent with the thickness of the vertical section (31); A galvanized square tube (11) is provided at the bottom of the side of the ladder beam (1), and the galvanized square tube (11) is flush with the side of the ladder beam (1); the upper part of the second flame retardant base layer (5) is fixedly connected to the first flame retardant base layer (23), and the lower part of the second flame retardant base layer (5) is fixedly connected to the galvanized square tube (11).

8. The modular staircase structure according to claim 7, characterized in that The outer surface of the second flame retardant base layer (5) is provided with a decorative coating.

9. A method for installing a modular staircase structure, characterized in that: The following steps are involved: An FRP pedal (21) is arranged on the ladder beam (1), and a fixing member (3) is installed on the FRP according to the position of the upright pole (41) of the handrail member (4), so that the horizontal section (32) of the fixing member (3) is fixedly connected to the FRP pedal (21), and the vertical section (31) of the fixing member (3) is fixedly connected to the side of the ladder beam (1); The horizontal section (32) is opposite to the first receiving groove (231) of the first flame retardant base layer (23), the first flame retardant base layer (23) is placed on the FRP pedal (21), a mounting hole (221) is opened on the solid wood pedal (22), and the solid wood pedal (22) is bonded to the first flame retardant base layer (23), and the mounting hole (221), the first receiving groove (231) and the horizontal section (32) are arranged opposite to each other in sequence along the vertical direction; The vertical rod (41) of the railing member (4) is passed through the mounting hole (221) and the first receiving groove (231) to be welded and fixed to the horizontal section (32); A galvanized square tube (11) is arranged at the bottom of the side of the ladder beam (1), and the upper part of the second flame retardant base layer (5) is fixedly connected to the first flame retardant base layer (23), and the lower part of the second flame retardant base layer (5) is fixedly connected to the galvanized square tube (11); A decorative coating is provided on the outer surface of the second flame retardant base layer (5).

10. The method for installing a modular staircase structure according to claim 9, characterized in that: The mounting hole (221) is shielded.

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