Fabricated steel structure stair

Abstract

The utility model discloses an assembly type steel structure stair which comprises a first frame and a second frame, an assembly component is arranged between the first frame, and a connecting component is arranged between the first frame and the second frame. The assembling assembly comprises supporting blocks fixedly installed on one side of the first frame and one side of the second frame, limiting grooves are formed in the front sides of the supporting blocks, a pedal is arranged between the supporting blocks, a sliding groove is formed in one side of the pedal, first clamping blocks are slidably installed in the sliding groove, first clamping grooves are formed in the limiting grooves, and first springs are fixedly installed between the first clamping blocks. According to the steel structure stair assembly device, the pedals can be limited and fixed through the assembly assemblies, meanwhile, workers can conveniently and rapidly assemble and install the pedals, and therefore the situation that steel structure stair parts need to be cut and welded again in the next building engineering project is avoided, and the assembly efficiency of a steel structure stair is improved.

Description

Technical Field

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

[0002] In construction projects, temporary prefabricated houses are usually built for construction workers to live in. Two-story prefabricated houses are set up for workers to live in. To facilitate workers to enter the prefabricated houses for rest, a staircase made of welded steel structure is built next to the prefabricated houses.

[0003] Existing steel structure staircases consist of components such as frames, treads, railings, connectors, and support legs.

[0004] Because steel structure staircase components require extensive on-site assembly and welding, and the quantity of these components is large, the welding time is lengthy. When moving to the next construction project, the steel structure staircase components need to be cut and re-welded, which is inconvenient. Therefore, there is an urgent need to design a prefabricated steel structure staircase to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated steel structure staircase to address the aforementioned shortcomings in the prior art.

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

[0007] It includes a first frame and a second frame, with an assembly component provided between the first frame and a connecting component provided between the first frame and the second frame;

[0008] The assembly includes a support block fixedly installed on one side of the first frame and the second frame. A limit groove is formed on the front side of the support block. A pedal is provided between the support blocks. A sliding groove is formed on one side of the pedal. A first locking block is slidably installed in the sliding groove. A first locking slot is formed in the limit groove. A first spring is fixedly installed between the first locking blocks.

[0009] The assembly components can limit and fix the treads while facilitating quick assembly and installation by workers. This prevents the need to cut and re-weld steel structure stair components in the next construction project, thereby increasing the assembly efficiency of steel structure staircases.

[0010] A first gear is rotatably installed inside the slide groove, a connecting plate is fixedly installed on one side of the first locking block, and a first rack is fixedly installed on one side of the connecting plate.

[0011] A square groove is provided at the bottom of the pedal, and a square plate is slidably installed in the square groove. A second rack is fixedly installed on one side of the square plate.

[0012] Both the first frame and the second frame have support legs bolted to one side, and both the first frame and the second frame have guardrails bolted to the top.

[0013] The connecting assembly includes a dovetail plate, a second locking block, a second spring, a second gear, a third rack, and a baffle. A dovetail groove is provided on one side of the second frame, and the baffle is fixedly installed in the dovetail groove. A second locking slot is provided in the dovetail groove.

[0014] The dovetail plate is fixedly installed on one side of the first frame. A groove is provided between the dovetail plate and the first frame. The second locking block is slidably installed in the groove. The second spring is fixedly installed between the second locking block and the first frame. A circular groove is provided on one side of the dovetail plate. The second gear is rotatably installed in the circular groove. The third rack is fixedly installed on one side of the second locking block. A prismatic groove is provided on one side of the second gear.

[0015] In the above technical solution, the prefabricated steel structure staircase provided by this utility model has the following beneficial effects:

[0016] The assembly components can limit and fix the treads while facilitating quick assembly and installation by workers. This prevents the need to cut and re-weld steel structure stair components in the next construction project, thereby increasing the assembly efficiency of steel structure staircases.

[0017] The square groove can guide and limit the square plate, thereby improving the stability of the steel structure staircase during use.

[0018] The connecting components make it easier for workers to connect and fix the first and second frames, thereby improving the assembly efficiency of the steel structure staircase. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of a prefabricated steel structure staircase according to an embodiment of the present invention.

[0021] Figure 2This is a schematic diagram of the dovetail plate structure provided for an embodiment of a prefabricated steel structure staircase according to this utility model.

[0022] Figure 3 This is a schematic diagram of the assembly components provided for an embodiment of a prefabricated steel structure staircase according to the present invention.

[0023] Figure 4 This is a schematic diagram of the connection component structure provided for an embodiment of a prefabricated steel structure staircase according to this utility model.

[0024] 1. First frame; 2. Second frame; 3. Assembly component; 4. Connecting component; 5. Support block; 6. Limiting groove; 7. Pedal; 8. Slide groove; 9. First locking block; 10. First locking groove; 11. First spring; 12. First gear; 13. Connecting plate; 14. First rack; 15. Square groove; 16. Square plate; 17. Second rack; 18. Support leg; 19. Guardrail; 20. Dovetail plate; 21. Second locking block; 22. Second spring; 23. Second gear; 24. Third rack; 25. Baffle; 26. Dovetail groove; 27. Groove; 28. Second locking groove; 29. ​​Circular groove; 30. Prismatic groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown in the figure, this utility model provides a prefabricated steel structure staircase.

[0027] It includes a first frame 1 and a second frame 2, with an assembly component 3 provided between the first frame 1 and a connecting component 4 provided between the first frame 1 and the second frame 2;

[0028] Assembly component 3 includes a support block 5 fixedly installed on one side of the first frame 1 and the second frame 2. A limiting groove 6 is opened on the front side of the support block 5. A pedal 7 is provided between the support blocks 5. A sliding groove 8 is opened on one side of the pedal 7. A first locking block 9 is slidably installed in the sliding groove 8. A first locking groove 10 is opened in the limiting groove 6. A first spring 11 is fixedly installed between the first locking blocks 9. When the pedal 7 is held and the square plate 16 is pressed, the square plate 16 drives the connecting plate 13 to move through the second rack 17, the first gear 12 and the first rack 14. The connecting plate 13 drives the first locking block 9 to retract. The first locking block 9 presses the first spring 11, inserting the pedal 7 into the limiting groove 6 between the support blocks 5. When the square plate 16 is released, referring to the above steps, the first spring 11 presses the first locking block 9, causing the first locking block 9 to be inserted into the first locking groove 10, so that it is fixedly connected to the support block 5, and the pedal 7, the first frame 1 and the second frame 2 are assembled and fixed.

[0029] Assembly component 3 can limit and fix the tread 7 while facilitating workers to quickly assemble and install it, thereby preventing the need to cut and re-weld the steel structure staircase components in the next construction project, thus increasing the assembly efficiency of the steel structure staircase.

[0030] Reference Figure 3 In this embodiment, a first gear 12 is rotatably installed in the slide groove 8, a connecting plate 13 is fixedly installed on one side of the first locking block 9, and a first rack 14 is fixedly installed on one side of the connecting plate 13.

[0031] A square groove 15 is provided at the bottom of the pedal 7, and a square plate 16 is slidably installed in the square groove 15. A second rack 17 is fixedly installed on one side of the square plate 16.

[0032] The square groove 15 can guide and limit the square plate 16, thereby improving the stability of the steel structure staircase during use.

[0033] Both the first frame 1 and the second frame 2 have support legs 18 bolted to one side, and guardrails 19 bolted to the top of both the first frame 1 and the second frame 2.

[0034] Reference Figure 4 The connecting component 4 in this embodiment includes a dovetail plate 20, a second locking block 21, a second spring 22, a second gear 23, a third rack 24, and a baffle 25. A dovetail groove 26 is provided on one side of the second frame 2. The baffle 25 is fixedly installed in the dovetail groove 26. A second locking groove 28 is provided in the dovetail groove 26. When a tool is inserted into the prismatic groove 30 through the circular groove 29 and rotated, it drives the second gear 23 to rotate. The second gear 23 drives the second locking block 21 to retract through the third rack 24. The second locking block 21 presses against the second spring 22, inserting the dovetail plate 20 into the dovetail groove 26 and releasing the second gear 23. The second spring 22 presses against the second locking block 21, causing the second locking block 21 to insert into the second locking groove 28, thereby limiting and fixing the first frame 1 and the second frame 2.

[0035] The connecting component 4 facilitates the connection and fixation of the first frame 1 and the second frame 2 by workers, thereby improving the assembly efficiency of the steel structure staircase.

[0036] The dovetail plate 20 is fixedly installed on one side of the first frame 1. A groove 27 is provided between the dovetail plate 20 and the first frame 1. The second locking block 21 is slidably installed in the groove 27. The second spring 22 is fixedly installed between the second locking block 21 and the first frame 1. A circular groove 29 is provided on one side of the dovetail plate 20. The second gear 23 is rotatably installed in the circular groove 29. The third rack 24 is fixedly installed on one side of the second locking block 21. A prismatic groove 30 is provided on one side of the second gear 23.

[0037] Working principle: First, insert the tool into the prismatic groove 30 through the circular groove 29 and rotate it, causing the second gear 23 to rotate. The second gear 23 drives the second locking block 21 to retract through the third rack 24. The second locking block 21 compresses the second spring 22, inserting the dovetail plate 20 into the dovetail groove 26 and releasing the second gear 23. The second spring 22 compresses the second locking block 21, causing the second locking block 21 to insert into the second locking groove 28, thus limiting and fixing the first frame 1 and the second frame 2. Hold the pedal 7 and position it on the square plate 1. 6. When the square plate 16 is pressed, the connecting plate 13 is moved by the second rack 17, the first gear 12 and the first rack 14. The connecting plate 13 causes the first locking block 9 to retract. The first locking block 9 presses against the first spring 11, inserting the pedal 7 into the limiting groove 6 between the support blocks 5. The square plate 16 is released. Referring to the above steps, the first spring 11 presses against the first locking block 9, causing the first locking block 9 to be inserted into the first locking groove 10, so that it is fixedly connected to the support block 5, and the pedal 7, the first frame 1 and the second frame 2 are assembled and fixed.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated steel structure staircase, comprising a first frame (1) and a second frame (2), characterized in that, An assembly component (3) is provided between the first frame (1), and a connecting component (4) is provided between the first frame (1) and the second frame (2). The assembly component (3) includes a support block (5) fixedly installed on one side of the first frame (1) and the second frame (2). A limit groove (6) is opened on the front side of the support block (5). A pedal (7) is provided between the support blocks (5). A sliding groove (8) is opened on one side of the pedal (7). A first locking block (9) is slidably installed in the sliding groove (8). A first locking slot (10) is opened in the limit groove (6). A first spring (11) is fixedly installed between the first locking blocks (9).

2. The prefabricated steel structure staircase according to claim 1, characterized in that, The first gear (12) is rotatably installed in the slide (8), and a connecting plate (13) is fixedly installed on one side of the first locking block (9). A first rack (14) is fixedly installed on one side of the connecting plate (13).

3. The prefabricated steel structure staircase according to claim 1, characterized in that, The bottom of the pedal (7) is provided with a square groove (15), and a square plate (16) is slidably installed in the square groove (15). A second rack (17) is fixedly installed on one side of the square plate (16).

4. A prefabricated steel structure staircase according to claim 1, characterized in that, Both the first frame (1) and the second frame (2) are bolted with support legs (18) on one side, and both the first frame (1) and the second frame (2) are bolted with guardrails (19) on the top.

5. A prefabricated steel structure staircase according to claim 1, characterized in that, The connecting component (4) includes a dovetail plate (20), a second locking block (21), a second spring (22), a second gear (23), a third rack (24), and a baffle (25). A dovetail groove (26) is provided on one side of the second frame (2). The baffle (25) is fixedly installed in the dovetail groove (26). A second locking groove (28) is provided in the dovetail groove (26).

6. A prefabricated steel structure staircase according to claim 5, characterized in that, The dovetail plate (20) is fixedly installed on one side of the first frame (1). A groove (27) is provided between the dovetail plate (20) and the first frame (1). The second locking block (21) is slidably installed in the groove (27). The second spring (22) is fixedly installed between the second locking block (21) and the first frame (1). A circular groove (29) is provided on one side of the dovetail plate (20). The second gear (23) is rotatably installed in the circular groove (29). The third rack (24) is fixedly installed on one side of the second locking block (21). A prismatic groove (30) is provided on one side of the second gear (23).

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