Width-variable stair device

Abstract

The utility model relates to a stair device with variable width. Comprising a first inclined strut beam and a second inclined strut beam which are oppositely arranged, the upper ends of the first inclined strut beam and the second inclined strut beam are fixedly connected with the second-layer ground of the steel structure through top mounting plates, the lower ends of the first inclined strut beam and the second inclined strut beam are fixedly connected with the first-layer ground of the steel structure through bottom mounting plates, and a plurality of telescopic step assemblies are mounted between the first inclined strut beam and the second inclined strut beam in the length direction; the telescopic step assembly comprises two opposite root bases, the two root bases are detachably connected with the first inclined supporting beam or the second inclined supporting beam on the outer side correspondingly, and side inserting-connecting barrel bodies are arranged on the inner sides of the two root bases correspondingly. A middle connecting sleeve is arranged between the two side inserting connection barrels, the side inserting connection barrels are inserted into the middle connecting sleeve, the telescopic step assembly further comprises a plurality of step pedals which are fixedly laid, and the step pedals are fixedly connected with a main body part of the telescopic step assembly through assembling long bolts. The width of the stair device can be adjusted and set to a certain extent, the flexibility of installation and use of the stair device in steel structure spaces of different sizes is improved, the convenience of exhibition arrangement and exhibition removal is improved, and the project amount of exhibition arrangement and exhibition removal is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhibition facilities, and particularly relates to a stair device with variable width. Background Art

[0002] An exhibition is a scenario for exhibiting products and services to promote brand publicity and sales. Usually, multiple exhibition areas are divided within an exhibition building, and exhibition booths are arranged within the areas. Exhibitors rent booths and set them up. By constructing and creating a good atmosphere for the exhibition space, the exhibition experience of exhibitors can be influenced and the exhibition effect can be promoted. In the process of constructing exhibition booths, a steel structure system is usually used. The steel structure system forms a closed or semi-closed exhibition space at the exhibition site, and an exhibition atmosphere is created inside and outside the steel structure system. In some special exhibition scenarios, in order to make full use of the space at the exhibition site, exhibitors usually set up multiple layers of steel structure systems (usually two layers) at the obtained booth positions. Exhibits are placed in the lower exhibition space and an exhibition atmosphere is created for the exhibits. The upper layer can be used as a negotiation area, business area, experience area, etc. By reasonably using the booth space, the purpose of increasing exhibition revenue can be achieved. The aforementioned multi-layer steel structure system needs to be equipped with a stair device for use so that exhibitors can reach the upper activity area.

[0003] Therefore, the aforementioned stair device is important for the steel structure facilities on the booth. For exhibition facilities, different from permanent building facilities, people require exhibition facilities to have a more flexible usage method and certain adaptability and adjustment characteristics, so that exhibition facilities are more convenient for booth setup and dismantling and can adapt to the space requirements of different booths. Existing stair devices applied to steel structure type booth facilities usually do not have the aforementioned adaptability and adjustment characteristics. In some special scenarios, due to the different sizes of on-site booths, the sizes of steel structure booths change accordingly, and stair devices with different width sizes need to be installed, which increases the construction workload. Due to the lack of a stair device with a general adaptation size, it brings inconvenience to the booth setup and dismantling work at the exhibition site. In summary, it is necessary to develop and design a stair device with variable width to solve the aforementioned technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stair device with variable width. By enabling the width of the stair device to be adjusted and set to a certain extent, the flexibility of the stair device for installation and use in steel structure spaces of different sizes is improved, the convenience of booth setup and dismantling is enhanced, and the workload of booth setup and dismantling is reduced.

[0005] The technical solution adopted by the utility model is as follows: A staircase device with variable width, including a first diagonal brace beam and a second diagonal brace beam arranged oppositely. The upper ends of both are fixedly connected to the second-floor ground of the steel structure by a top mounting plate, and the lower ends of both are fixedly connected to the first-floor ground of the steel structure by a bottom mounting plate. A plurality of telescopic step assemblies are installed between the first diagonal brace beam and the second diagonal brace beam along the length direction; the telescopic step assembly includes two opposite root bases, and the two root bases are respectively detachably connected to the outer first diagonal brace beam or second diagonal brace beam. Side insertion cylinders are provided on the inner sides of the two root bases. A middle connecting sleeve is provided between the two side insertion cylinders, and the side insertion cylinders are inserted into the middle connecting sleeve. The telescopic step assembly also includes multiple step treads fixed by paving. The step treads are fixedly connected to the main body part of the telescopic step assembly by assembly long bolts.

[0006] Preferably, the root base, the side insertion cylinder, and the middle connecting sleeve are all in the shape of a cuboid. The cross-sectional contour shapes of the root base and the middle connecting sleeve are the same, and the cross-sectional contour of the side insertion cylinder is the same as the cross-sectional contour of the inner cavity of the middle connecting sleeve.

[0007] Preferably, assembly holes penetrating through the front and back are provided on the root base, and multiple groups of assembly holes penetrating through the front and back are provided on the side insertion cylinder and the middle connecting sleeve. Each assembly long bolt is respectively located in each assembly hole.

[0008] Preferably, the step tread includes a tread cross plate and a tread longitudinal plate, with an L-shaped cross-section. The tread cross plate rests on the root base and the middle connecting sleeve. The tread longitudinal plate is located behind the root base, the middle connecting sleeve, and the side insertion cylinder, and the tread longitudinal plate is fixedly connected to the main body part of the telescopic step assembly by the assembly long bolts. Anti-slip bumps or anti-slip ridges are provided on the surface of the tread cross plate of the step tread.

[0009] Preferably, a plurality of threaded holes are provided on the outer side of the root base, and connection holes are provided at corresponding positions on the first diagonal brace beam and the second diagonal brace beam. The root base is fixedly connected to the first diagonal brace beam or the second diagonal brace beam by mounting screws located in the threaded holes and the connection holes.

[0010] Preferably, the top mounting plate and the bottom mounting plate have the same structure, both including a mounting longitudinal plate and a mounting cross plate. The mounting longitudinal plate is fixedly connected to the end of the first diagonal brace beam or the second diagonal brace beam by bolts, and the mounting cross plate is fixedly connected to the second floor of the steel structure or the first floor of the steel structure by bolts.

[0011] Preferably, safety guardrails are also installed on the first diagonal bracing beam and / or the second diagonal bracing beam. The safety guardrails include handrails supported by a plurality of support rods. The lower ends of the support rods are fixedly connected to the corresponding diagonal bracing beam on this side by side mounting plates. Safety diagonal rods are also installed on the support rods, and the safety diagonal rods and the support rods are fixedly connected by adapters at the crossing positions.

[0012] Preferably, the adapter includes a first hoop for surrounding the support rod and a second hoop for surrounding the safety diagonal rod. Transverse through connection holes are provided on the first hoop, the second hoop, the support rod and the safety diagonal rod, and connecting long bolts are inserted into the connection holes.

[0013] The advantages and positive effects of the present utility model are as follows:

[0014] The present utility model provides a stair device with a reasonable structure design and variable width. Compared with the existing fixed stair devices applied at exhibition sites, in the stair device of the present utility model, a plurality of telescopic step assemblies are installed between the two diagonal bracing beams. When necessary, by setting the transverse length dimensions of the telescopic step assemblies, the width dimension of the stair device can be adjusted and set, enabling the stair device to have the ability of adaptive adjustment when facing different steel structure space dimensions at different application sites, improving the versatility of the stair device, enhancing the flexibility of installation and use of the stair device in steel structure spaces of different dimensions, improving the convenience of booth setup and dismantling, and reducing the workload of booth setup and dismantling. Description of the Drawings

[0015] Figure 1 is a schematic structural view of the present utility model, from the inner side perspective;

[0016] Figure 2 is a schematic structural view of the present utility model, from the outer side perspective;

[0017] Figure 3 is Figure 1 a top perspective structural view of the telescopic step assembly in

[0018] Figure 4 is Figure 3 a top perspective structural view of the main body part of the telescopic step assembly in

[0019] Figure 5 is Figure 3 a top structural view of the step tread in

[0020] Figure 6 is Figure 1 a structural view of the adapter in

[0021] In the figures:

[0022] 1. First diagonal bracing beam; 2. Telescopic step assembly; 2-1. Mounting screw; 2-2. Step pedal; 2-3. Assembly long bolt; 2-4. Middle connecting sleeve; 2-5. Side plug-in cylinder; 2-6. Root base; 3. Top mounting plate; 4. Second diagonal bracing beam; 5. Bottom mounting plate; 6. Support rod; 7. Handrail; 8. Safety diagonal bar; 9. Adapter; 9-1. First hoop; 9-2. Second hoop; 9-3. Connecting long bolt; 10. Side mounting plate. Detailed implementation mode

[0023] To further understand the content, features and effects of the present invention, the following embodiments are provided for detailed description.

[0024] Please refer to Figure 1 and Figure 2 , the variable-width staircase device of the present invention includes a first diagonal bracing beam 1 and a second diagonal bracing beam 4 which are oppositely arranged. The upper ends of the two are fixedly connected to the steel structure second floor ground by a top mounting plate 3, and the lower ends of the two are fixedly connected to the steel structure first floor ground by a bottom mounting plate 5.

[0025] The first diagonal bracing beam 1 and the second diagonal bracing beam 4 serve as the support framework of the staircase device and are installed between the steel structure second floor ground and the steel structure first floor ground.

[0026] In this embodiment, as shown in the figure, the structures of the top mounting plate 3 and the bottom mounting plate 5 are the same, both including a mounting longitudinal plate and a mounting transverse plate (formed by bending the same metal plate). The mounting longitudinal plate is fixedly connected to the end of the first diagonal bracing beam 1 or the second diagonal bracing beam 4 by bolts, and the mounting transverse plate is fixedly connected to the steel structure second floor or the steel structure first floor by bolts, which improves the convenience of disassembling and assembling the staircase device on the steel structure and ensures the stability of the staircase device after installation.

[0027] A plurality of telescopic step assemblies 2 are installed between the first diagonal bracing beam 1 and the second diagonal bracing beam 4 along the length direction. Each telescopic step assembly 2 can be adjusted by telescoping to change the width dimension of the staircase device, adapt to the requirements for the width of the staircase device in different application scenarios, and improve the versatility of the staircase device. Each telescopic step assembly 2 forms a ladder for walking, and people ascend from the steel structure first floor to the steel structure second floor or descend from the steel structure second floor to the steel structure first floor along the ladder.

[0028] Please refer to Figure 3 , Figure 4 and Figure 5 , it can be seen that:

[0029] The telescopic step assembly 2 includes two opposite root bases 2-6, and the two root bases 2-6 are respectively detachably connected to the outer first diagonal brace 1 or the second diagonal brace 4. In this embodiment, a plurality of threaded holes are provided on the outer side of the root base 2-6, and connection holes are provided at corresponding positions on the first diagonal brace 1 and the second diagonal brace 4. The root base 2-6 is fixedly connected to the first diagonal brace 1 or the second diagonal brace 4 by mounting screws 2-1 located in the threaded holes and the connection holes, so that the telescopic step assembly 2 is detachable from the skeleton of the stair device.

[0030] Side insertion cylinders 2-5 are provided on the inner sides of the two root bases 2-6, and a middle connection sleeve 2-4 is provided between the two side insertion cylinders 2-5, and the side insertion cylinders 2-5 are inserted into the middle connection sleeve 2-4. The outer end of the side insertion cylinder 2-5 is fixedly connected to the inner end of the root base 2-6 by welding. By making the two side insertion cylinders 2-5 enter or exit the middle connection sleeve 2-4 more or less, the adjustment and setting of the overall length are realized.

[0031] In this embodiment, the root base 2-6, the side insertion cylinder 2-5 and the middle connection sleeve 2-4 are all in the shape of a cuboid. The cross-sectional contour shapes of the root base 2-6 and the middle connection sleeve 2-4 are the same, and the cross-sectional contour of the side insertion cylinder 2-5 is the same as the cross-sectional contour of the inner cavity of the middle connection sleeve 2-4. The function of this structure is that the tops of the root base 2-6 and the middle connection sleeve 2-4 form a support surface at the same height. At the same time, since the cross-sectional contour of the inner cavity of the middle connection sleeve 2-4 is the same as the outer cross-sectional contour of the side insertion cylinder 2-5, the stability of the side insertion cylinder 2-5 when entering and exiting the middle connection sleeve 2-4 can be improved, and there will be no shaking.

[0032] The telescopic step assembly 2 further includes a plurality of step pedals 2-2 fixed by paving. The step pedals 2-2 are fixedly connected to the main body part of the telescopic step assembly 2 (the main body part is composed of two root bases 2-6, two side insertion cylinders 2-5 and a middle connection sleeve 2-4) by assembly long bolts 2-3. In this embodiment, assembly holes penetrating through the front and back are provided on the root base 2-6, and a plurality of groups of assembly holes penetrating through the front and back are provided on the side insertion cylinder 2-5 and the middle connection sleeve 2-4, and each assembly long bolt 2-3 is respectively located in each assembly hole.

[0033] Please refer to Figure 5 and it can be seen that:

[0034] The step pedal 2-2 includes a transverse pedal plate and a longitudinal pedal plate, and has an L-shaped cross-section. The step pedal 2-2 can be made by bending a single metal plate. The transverse pedal plate rests on the root base 2-6 and the middle connecting sleeve 2-4, and the longitudinal pedal plate is located behind the root base 2-6, the middle connecting sleeve 2-4 and the side plug-in cylinder 2-5. The longitudinal pedal plate of the step pedal is fixedly connected to the main body part of the telescopic step assembly 2 by using the assembly long bolt 2-3. Specifically, connection holes are provided on the longitudinal pedal plate of the step pedal 2-2, and the assembly long bolt 2-3 is passed through the connection holes.

[0035] Therefore, the outer assembly long bolt 2-3 fixedly connects the step pedal 2-2 to the root base 2-6, and the inner assembly long bolt 2-3 fixedly connects the step pedal 2-2 to the side plug-in cylinder 2-5 and the middle connecting sleeve 2-4. In addition to being used for installation and fixation, the longitudinal pedal plate of the step pedal 2-2 can also shield the main body part of the telescopic step assembly 2 (the main body part is composed of two root bases 2-6, two side plug-in cylinders 2-5 and a middle connecting sleeve 2-4).

[0036] In this embodiment, anti-slip bumps or anti-slip ridges are provided on the surface of the transverse pedal plate of the step pedal 2-2 to improve the anti-slip effect.

[0037] In this embodiment, a safety guardrail is also installed on the first diagonal brace 1 and / or the second diagonal brace 4. The safety guardrail is used to provide protection on the outside of the staircase device to prevent people from falling from the staircase device. Figure 1 and Figure 2 The structure form shown in is the safety guardrail installed on the second diagonal brace 4.

[0038] The safety guardrail includes a handrail 7 supported by a plurality of support rods 6. The lower ends of the support rods 6 are fixedly connected to the diagonal brace on this side by using side mounting plates 10. Safety diagonal rods 8 are also installed on the support rods 6. The safety diagonal rods 8 and the support rods 6 are fixedly connected by using connecting parts 9 at the intersection positions. As shown in Figure 2 In, the middle of the side mounting plate 10 has a protrusion and the lower end of the support rod 6 falls into the protrusion. The side mounting plate 10 is fixedly connected to the diagonal brace where it is located by using bolts. The function of setting the safety diagonal rods 8 is to reduce the hollow size between the handrail 7, the diagonal brace and the support rods 6, and further improve safety. Figure 2 In the structure form shown in, two safety diagonal rods 8 are provided between the handrail 7 and the second diagonal brace 4.

[0039] Please refer to Figure 6, it can be seen that: the adapter 9 includes a first hoop 9-1 for surrounding the support rod 6 and a second hoop 9-2 for surrounding the safety diagonal rod 8. Transverse through connection holes are provided on the first hoop 9-1, the second hoop 9-2, the support rod 6 and the safety diagonal rod 8, and a connecting long bolt 9-3 is inserted into the connection holes.

[0040] Installation and construction method:

[0041] This staircase device is usually transported to the exhibition site in a split form. After building the steel structure booth facilities, first install the first diagonal support beam 1 and the second diagonal support beam 4 between the second-floor ground and the first-floor ground of the steel structure. Then, install each telescopic step assembly 2 step by step from top to bottom or from bottom to top between the first diagonal support beam 1 and the second diagonal support beam 4. Specifically, place the main part of the telescopic step assembly 2 between the first diagonal support beam 1 and the second diagonal support beam 4, and use installation screws 2-1 to fixedly connect the two root bases 2-6 to the first diagonal support beam 1 and the second diagonal support beam 4 respectively. Since the side insertion cylinder 2-5 and the middle connection sleeve 2-4 are not fixed yet, after the root base 2-6 is installed, the length dimension of the telescopic step assembly 2 is determined. Then, set the step tread 2-2 on the main part of the telescopic step assembly 2, and fixedly connect the step tread 2-2, the root base 2-6, the side insertion cylinder 2-5 and the middle connection sleeve 2-4 with a plurality of assembly long bolts 2-3.

[0042] Then, install the handrail 7 supported by a plurality of support rods 6 on the diagonal support beam with the side mounting plate 10, and then install the safety diagonal rod 8 with the adapter 9.

Claims

1. A stair device with variable width, characterized in that: It includes a first diagonal bracing beam (1) and a second diagonal bracing beam (2) which are oppositely arranged. The upper ends of both are fixedly connected to the floor of the second floor of the steel structure by a top mounting plate (3), and the lower ends of both are fixedly connected to the floor of the first floor of the steel structure by a bottom mounting plate (5). A plurality of telescopic step assemblies (2) are installed between the first diagonal bracing beam (1) and the second diagonal bracing beam (2) along the length direction; the telescopic step assembly (2) includes two opposite root bases (2-6), and the two root bases (2-6) are respectively detachably connected to the outer first diagonal bracing beam (1) or the second diagonal bracing beam (2). Side insertion cylinders (2-5) are provided on the inner sides of the two root bases (2-6). A middle connecting sleeve (2-4) is provided between the two side insertion cylinders (2-5), and the side insertion cylinders (2-5) are inserted into the middle connecting sleeve (2-4). The telescopic step assembly (2) further includes a plurality of step pedals (2-2) fixed by paving. The step pedals (2-2) are fixedly connected to the main body part of the telescopic step assembly (2) by assembly long bolts (2-3).

2. The variable-width staircase device according to claim 1, characterized in that: The root base (2-6), the side insertion cylinder (2-5) and the middle connecting sleeve (2-4) are all in the shape of a cuboid. The cross-sectional contour shapes of the root base (2-6) and the middle connecting sleeve (2-4) are the same. The cross-sectional contour of the side insertion cylinder (2-5) is the same as the cross-sectional contour of the inner cavity of the middle connecting sleeve (2-4).

3. The variable-width staircase device according to claim 2, characterized in that: at Assembly holes running through from front to back are provided on the root base (2-6). Multiple groups of assembly holes running through from front to back are provided on the side insertion cylinder (2-5) and the middle connecting sleeve (2-4). Each assembly long bolt (2-3) is respectively located in each assembly hole.

4. The variable-width staircase device according to claim 3, characterized in that: The step pedal (2-2) includes a pedal cross plate and a pedal longitudinal plate, and its cross-section is in an L shape. The pedal cross plate rests on the root base (2-6) and the middle connecting sleeve (2-4). The pedal longitudinal plate is located behind the root base (2-6), the middle connecting sleeve (2-4) and the side insertion cylinder (2-5), and the pedal longitudinal plate is fixedly connected to the main body part of the telescopic step assembly (2) by the assembly long bolts (2-3). Anti-slip bumps or anti-slip ridges are provided on the surface of the pedal cross plate of the step pedal (2-2).

5. The variable-width staircase device according to claim 4, characterized in that: at A plurality of threaded holes are provided on the outer side of the root base (2-6). Connecting holes are provided at corresponding positions on the first diagonal bracing beam (1) and the second diagonal bracing beam (2). The root base (2-6) is fixedly connected to the first diagonal bracing beam (1) or the second diagonal bracing beam (2) by mounting screws (2-1) located in the threaded holes and the connecting holes.

6. The variable-width staircase device according to claim 5, characterized in that: The top mounting plate (3) and the bottom mounting plate (5) have the same structure, and both include a mounting longitudinal plate and a mounting cross plate. The mounting longitudinal plate is fixedly connected to the end of the first diagonal bracing beam (1) or the second diagonal bracing beam (2) by bolts. The mounting cross plate is fixedly connected to the second floor or the first floor of the steel structure by bolts.

7. The variable-width staircase device according to any one of claims 1 to 6, characterized in that: at A safety guardrail is also installed on the first diagonal bracing beam (1) and / or the second diagonal bracing beam (2). The safety guardrail includes a handrail (7) supported by a plurality of support rods (6). The lower ends of the support rods (6) are fixedly connected to the diagonal bracing beam on this side by side mounting plates (10). A safety diagonal rod (8) is also installed on each support rod (6), and the safety diagonal rod (8) and the support rod (6) are fixedly connected by a connecting piece (9) at the intersection position.

8. The variable-width staircase device according to claim 7, characterized in that: The connecting piece (9) includes a first hoop (9-1) for surrounding the support rod (6) and a second hoop (9-2) for surrounding the safety diagonal rod (8). Transversely penetrating connection holes are provided on the first hoop (9-1), the second hoop (9-2), the support rod (6) and the safety diagonal rod (8), and a connecting long bolt (9-3) is inserted into the connection holes.

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