Steel structure stair convenient to disassemble and assemble

Abstract

The steel structure stair comprises two side supports, two mounting beams, two second guardrails, a plurality of first guardrails and a plurality of pedals, each side support comprises a plurality of side plates, the adjacent side plates are detachably connected through a plurality of first bolt and nut assemblies, and the second guardrails are connected with the first guardrails through a plurality of second bolt and nut assemblies. One end of each mounting beam is detachably connected with a side plate at the top end of the corresponding side support through a plurality of first bolt and nut assemblies, and each second guardrail is fixedly mounted at the top of the corresponding mounting beam; by arranging the connecting base, the screw rod, the supporting pipe, the internal thread pipe, the supporting plate and the like, auxiliary supporting can be carried out on the bottom of the steel structure stair, so that the stability of the steel structure stair in use is effectively improved, and by arranging the first guardrail and the second guardrail, the two sides of the steel structure stair can be surrounded and blocked, so that the safety of the steel structure stair is improved. And the first inclined rods and the second inclined rods on the first guardrails can be used as handrails, so that the weak can conveniently go up and down the stairs.

Description

Technical Field

[0001] This utility model relates to a staircase, specifically a steel structure staircase that is easy to assemble and disassemble. Background Technology

[0002] Steel structure staircases are staircases made of steel components and are generally used as temporary staircases in places such as large event sites and construction sites.

[0003] A search revealed that patent CN221422499U discloses a steel structure staircase. This staircase, with its storage groove, telescopic column, base plate, baffle, retaining ring, adjustment hole, and first bolt, allows for adjustment of the staircase's length. First, a storage groove is formed on one side of the staircase, with a telescopic column slidably connected to its inner surface. The telescopic column can then slide within the storage groove. Next, a base plate is fixedly connected to the lower surface of the telescopic column, and a retaining ring is fixedly connected to the upper surface of the staircase. The retaining ring and base plate prevent the telescopic column from detaching from the storage groove. Finally, rotating the first bolt through the storage groove and threadedly connecting the telescopic column secures it in its current position.

[0004] While the above solution allows for length adjustment, it lacks a supporting structure at the bottom when used as a staircase. This causes the staircase to wobble and become unstable when pedestrians walk on it. Furthermore, the lack of guardrails on both sides of the staircase poses a significant safety hazard and requires improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a steel structure staircase that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A steel structure staircase that is easy to assemble and disassemble includes two side supports, two mounting beams, two second guardrails, several first guardrails, and several treads. Each side support includes several side plates, adjacent side plates being detachably connected by multiple first bolt and nut assemblies. One end of each mounting beam is detachably connected to a side plate at the top of the side support via multiple first bolt and nut assemblies. The second guardrails are fixedly installed on the top of their corresponding mounting beams. Mounting plates are fixedly installed on both outer walls of each mounting beam, and mounting holes are provided through the mounting plates. Multiple positioning strips are fixedly installed on both outer walls of each side plate. The treads... Both ends of the pedal are provided with slots that are compatible with the positioning strip. Both ends of the pedal are fixedly connected to the corresponding side plate by the first locking bolt. The first guardrail is detachably installed on the corresponding side plate. The side support also includes several auxiliary support rods. Each auxiliary support rod includes a support plate and at least one support tube. The top of the support plate is rotatably mounted with an internally threaded tube through a bearing seat. The top of the support tube is fixedly mounted with a nut. The middle of the side wall of the side plate is fixedly mounted with a connecting seat. The bottom of the connecting seat and the bottom of the support tube are both fixedly mounted with screws. The nut and the internally threaded tube are both compatible with the screws.

[0008] As a further embodiment of this utility model: multiple levers are fixedly installed on the outer wall of the internally threaded tube, and multiple mounting holes are also provided through the top of the support plate.

[0009] As a further embodiment of this utility model: the bottom end of the side plate is a right-angled V-shape, the top end of the side plate is provided with a V-shaped groove that matches the bottom end, an L-shaped connecting plate is fixedly installed in the V-shaped groove at the top end of the side plate, an L-shaped groove is provided at the bottom end of the side plate and one end of the mounting beam, the L-shaped connecting plate matches the L-shaped groove, and a through hole for inserting the first bolt and nut assembly is provided through the L-shaped connecting plate and the L-shaped groove.

[0010] As a further embodiment of this utility model: the first guardrail includes two vertical bars, the top ends of the two vertical bars are fixedly connected to a first diagonal bar, the outer walls of the two vertical bars are fixedly connected to a second diagonal bar, the bottom ends of the vertical bars are fixedly connected to a U-shaped seat, the U-shaped seat is sleeved on the corresponding side plate, and the U-shaped seat and the side plate are fixedly connected by a plurality of second bolt and nut assemblies.

[0011] As a further embodiment of this utility model: the first locking bolt is installed through the side plate, and both ends of the pedal are provided with threaded holes that are compatible with the first locking bolt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model provides auxiliary support for the bottom of a steel structure staircase by setting up a connecting seat, screw, support pipe, internal threaded pipe, support plate, etc., thereby effectively improving the stability of the steel structure staircase during use. The setting of the first and second guardrails can enclose the two sides of the steel structure staircase to effectively improve the safety of the staircase. In addition, the first and second diagonal bars on the first guardrail can be used as handrails to facilitate the use of stairs by people with weak physical abilities. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a steel staircase that is easy to assemble and disassemble.

[0015] Figure 2 This is a structural diagram of a U-shaped base in a steel structure staircase that is easy to assemble and disassemble.

[0016] Figure 3 This is a schematic diagram of the treads in a steel staircase that is easy to assemble and disassemble.

[0017] Figure 4 This is a cross-sectional view of the support pipe in a steel structure staircase that is easy to assemble and disassemble.

[0018] The components include: side plate 1, L-shaped connecting plate 2, L-shaped groove 3, first bolt and nut assembly 4, pedal 5, slot 6, positioning strip 7, first locking bolt 8, connecting seat 9, screw 10, support tube 11, nut 12, first guardrail 13, vertical bar 14, first diagonal bar 15, second diagonal bar 16, U-shaped seat 17, second bolt and nut assembly 18, mounting beam 19, mounting plate 20, second guardrail 21, internal threaded tube 22, support plate 23, and lever 24. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4In this embodiment of the present invention, a steel structure staircase that is easy to assemble and disassemble includes two side supports, two mounting beams 19, two second guardrails 21, several first guardrails 13, and several treads 5. The side supports include several side plates 1, adjacent side plates 1 are detachably connected by multiple first bolt and nut assemblies 4. One end of each mounting beam 19 is detachably connected to the side plate 1 at the top of the side support by multiple first bolt and nut assemblies 4. The second guardrails 21 are fixedly installed on the top of the corresponding mounting beams 19. Mounting plates 20 are fixedly installed on both outer walls of each mounting beam 19, and mounting holes are provided through the mounting plates 20. Multiple positioning strips 7 are fixedly installed on both outer walls of each side plate 1. Both ends of the plate 5 are provided with slots 6 that are adapted to the positioning strip 7. Both ends of the pedal 5 are fixedly connected to the corresponding side plate 1 by the first locking bolt 8. The first guardrail 13 is detachably installed on the corresponding side plate 1. The side support also includes several auxiliary support rods. The auxiliary support rods include a support plate 23 and at least one support tube 11. The top of the support plate 23 is rotatably mounted with an internal threaded tube 22 through a bearing seat. The top of the support tube 11 is fixedly mounted with a nut 12. The middle of the side wall of the side plate 1 is fixedly mounted with a connecting seat 9. The bottom of the connecting seat 9 and the bottom of the support tube 11 are both fixedly mounted with a screw 10. The nut 12 and the internal threaded tube 22 are both adapted to the screw 10.

[0021] By adopting the above-described scheme, during installation, the two ends of the tread 5 are fitted onto the positioning strips 7 on the two side plates 1 through the slots 6. The tread 5 and the positioning strips 7 are then locked together by the first locking bolts 8, forming a stair section. Then, the adjacent stair sections are locked together by the first bolt and nut assembly 4. After the top of the uppermost side plate 1 is fixed to the corresponding mounting beam 19 by the first bolt and nut assembly 4, the mounting plates 20 on both sides of the mounting beam 19 are fixed to the target floor by the cooperation of bolts and mounting holes, thus fixing the staircase. Then, the first guardrail 13 is installed on each side plate 1. After the required number of support pipes 11 are installed under some connecting seats 9 by the cooperation of screws 10 and nuts 12, the support plate 23 is installed at the bottom end of the lowest support pipe 11 by the cooperation of screws 10 and internal threaded pipes 22. The internal threaded pipe 22 is rotated relative to the screws 10 so that the support plate 23 contacts the ground. Finally, the support plate 23 is fixed to the ground, thus providing stable support for the staircase and greatly improving the stability of the staircase during use.

[0022] Specific combination Figure 1In one embodiment of this utility model, a plurality of levers 24 are fixedly installed on the outer wall of the internally threaded tube 22. The arrangement of the plurality of levers 24 facilitates the rotation of the internally threaded tube 22. The top of the support plate 23 is also provided with a plurality of mounting holes. The mounting holes are provided so that expansion bolts can be used to cooperate with the mounting holes, making it easier to fix the support plate 24 on the ground.

[0023] Specific combination Figures 1-3 In one embodiment of the present invention, the bottom end of the side plate 1 is a right-angled V-shape, and the top end of the side plate 1 is provided with a V-shaped groove that matches the bottom end. An L-shaped connecting plate 2 is fixedly installed in the V-shaped groove at the top end of the side plate 1. An L-shaped groove 3 is provided at the bottom end of the side plate 1 and one end of the mounting beam 19. The L-shaped connecting plate 2 matches the L-shaped groove 3, and a through hole for inserting the first bolt and nut assembly 4 is provided through the L-shaped connecting plate 2 and the L-shaped groove 3.

[0024] The combination of V-groove, L-groove 3 and L-shaped connecting plate 2 facilitates quick docking of adjacent side plates 1 and makes it easy to connect the mounting beam 19 to the side plate 1, making the operation simple and convenient.

[0025] Specific combination Figure 1 In one embodiment of the present invention, the first guardrail 13 includes two vertical bars 14, the top ends of the two vertical bars 14 are fixedly connected to a first diagonal bar 15, the outer walls of the two vertical bars 14 are fixedly connected to a second diagonal bar 16, and the bottom ends of the vertical bars 14 are fixedly connected to a U-shaped seat 17. The U-shaped seat 17 is sleeved on the corresponding side plate 1, and the U-shaped seat 17 and the side plate 1 are fixedly connected by a plurality of second bolt and nut assemblies 18.

[0026] The first guardrail 13 can be used to enclose both sides of the steel structure staircase, thereby effectively improving the safety of the staircase. The first diagonal bar 15 and the second diagonal bar 16 on the first guardrail 13 can be used as handrails to facilitate the movement of people with weak constitutions up and down the stairs. The U-shaped seat 17 and the second bolt and nut assembly 18 facilitate the disassembly and assembly of the first guardrail 13 on the side plate 1.

[0027] Specific combination Figure 1 and Figure 3 In one embodiment of the present invention, the first locking bolt 8 is installed through the side plate 1, and both ends of the pedal 5 are provided with threaded holes that are compatible with the first locking bolt 8, so as to facilitate the disassembly and assembly of the side plate 1 at both ends of the pedal 5.

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

Claims

1. A steel structure staircase that is easy to assemble and disassemble, characterized in that: The device includes two side supports, two mounting beams (19), two second guardrails (21), several first guardrails (13), and several pedals (5). The side supports include several side plates (1), and adjacent side plates (1) are detachably connected by multiple first bolt and nut assemblies (4). One end of the mounting beam (19) is detachably connected to the side plate (1) at the top of the side support by multiple first bolt and nut assemblies (4). The second guardrails (21) are fixedly installed on the top of the corresponding mounting beam (19). Mounting plates (20) are fixedly installed on both outer walls of the mounting beam (19). Mounting holes are provided through the mounting plates (20). Multiple positioning strips (7) are fixedly installed on both outer walls of the side plates (1). Both ends of the pedals (5) are provided with positioning strips (7). The two ends of the pedal (5) are fixedly connected to the corresponding side plate (1) by the first locking bolt (8). The first guardrail (13) is detachably installed on the corresponding side plate (1). The side support also includes several auxiliary support rods. The auxiliary support rods include a support plate (23) and at least one support tube (11). The top of the support plate (23) is rotatably installed with an internal thread tube (22) through a bearing seat. The top of the support tube (11) is fixedly installed with a nut (12). The middle of the side wall of the side plate (1) is fixedly installed with a connecting seat (9). The bottom of the connecting seat (9) and the bottom of the support tube (11) are fixedly installed with a screw (10). The nut (12) and the internal thread tube (22) are both compatible with the screw (10).

2. The steel structure staircase that is easy to assemble and disassemble according to claim 1, characterized in that: Multiple levers (24) are fixedly installed on the outer wall of the internally threaded tube (22), and multiple mounting holes are also provided through the top of the support plate (23).

3. The steel structure staircase that is easy to assemble and disassemble according to claim 1, characterized in that: The bottom end of the side plate (1) is a right-angled V-shape. The top end of the side plate (1) is provided with a V-shaped groove that matches the bottom end. An L-shaped connecting plate (2) is fixedly installed in the V-shaped groove at the top end of the side plate (1). An L-shaped groove (3) is provided at the bottom end of the side plate (1) and at one end of the mounting beam (19). The L-shaped connecting plate (2) matches the L-shaped groove (3). A through hole for inserting the first bolt and nut assembly (4) is provided through the L-shaped connecting plate (2) and the L-shaped groove (3).

4. The steel structure staircase that is easy to assemble and disassemble according to claim 1, characterized in that: The first guardrail (13) includes two vertical bars (14), the top ends of the two vertical bars (14) are fixedly connected to a first diagonal bar (15), the outer walls of the two vertical bars (14) are fixedly connected to a second diagonal bar (16), the bottom ends of the vertical bars (14) are fixedly connected to a U-shaped seat (17), the U-shaped seat (17) is sleeved on the corresponding side plate (1), and the U-shaped seat (17) and the side plate (1) are fixedly connected by a plurality of second bolt and nut assemblies (18).

5. A steel structure staircase that is easy to assemble and disassemble according to claim 1, characterized in that: The first locking bolt (8) is installed on the side plate (1), and both ends of the pedal (5) are provided with threaded holes that are compatible with the first locking bolt (8).

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