Assembly type prefabricated building stair module platform structure

Abstract

The application discloses a kind of prefabricated building stair for assembly type mould platform structure, including two L-shaped plates, the upper surface of two L-shaped plates is equipped with limiting slot, the lower surface of one L-shaped plate is slidably connected in the inside of the limiting slot, the inside bottom wall of the limiting slot is provided with limiting plate, the lower surface of the limiting plate is welded with plate body and penetrates the inside bottom wall of the limiting slot;When assembling the stairs, one side of one L-shaped plate is placed in the inside of the limiting slot, one side of the first sliding block is slid to the inside of the fourth sliding groove, one L-shaped plate is fixed, when the slope of the stairs changes, pull the slide plate from the inside of the third sliding groove, adjust the length of the slide plate, at this time, the fixed block is rotated in the first screw hole by hand, so as to fix the slide plate, so that the L-shaped plate adapts to different slopes, avoids the phenomenon that the stairs shake when using by the way of adjusting hinge.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a formwork structure for a prefabricated building staircase. Background Technology

[0002] Prefabricated construction refers to transferring a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. Stairs are an essential part of prefabricated construction. During stair assembly, due to the varying heights of prefabricated buildings, the stair formwork needs to be adjusted to adapt to different building structures. Existing stair formwork structures, during assembly, feature rotatable connecting plates and rotatable step mounting seats on the prefabricated steps. When the angle of the step mounting frame changes, the connecting plates and step mounting seats can be rotated to adapt the prefabricated steps to the changing angle of the step mounting frame. However, the following problems still exist:

[0003] Since the rotating connecting plate is hinged to the step mounting base, when workers step on the steps, the rotating connecting plate can easily cause the steps to shake, resulting in unstable installation of the steps and rendering them unusable. This also greatly increases the threat to the personal safety of workers. Therefore, a prefabricated building staircase formwork structure is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a formwork structure for prefabricated building staircases to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated building staircase formwork structure, comprising two L-shaped plates, one of which has a limiting groove on its upper surface, and the other L-shaped plate has its lower surface slidably connected to the inside of the limiting groove. A limiting plate is provided on the inner bottom wall of the limiting groove, and the lower surface of the limiting plate penetrates the inner bottom wall of the limiting groove and is welded with a plate body. A first slider is welded to the upper surface of the limiting plate. A first sliding groove is provided on the inner side wall of the limiting groove. The first slider is slidably connected to the inside of the first sliding groove on the side away from one of the L-shaped plates. A third sliding groove is provided on one side of both L-shaped plates, and a sliding plate is slidably connected inside the third sliding groove. First threaded holes are provided on the front and rear surfaces of both L-shaped plates and the sliding plate. A screw is threaded into the first threaded hole, and a fixing block is welded to the end of the screw away from the sliding plate.

[0006] As a further preferred embodiment of this technical solution: hinge blocks are welded to the upper surfaces of both L-shaped plates, and hinge plates are hinged to the upper surfaces of the hinge blocks. Two fixing plates are symmetrically welded to the inner wall of one L-shaped plate, and the side of the hinge plate away from the hinge block is fixedly connected to the adjacent side of the two fixing plates.

[0007] As a further preferred embodiment of this technical solution: a second threaded hole is provided on each of the two adjacent sides of the fixing plates, and a fixing screw is connected to the internal thread of the second threaded hole.

[0008] As a further preferred embodiment of this technical solution: a first rubber pad is adhered to the inner bottom wall of the limiting groove.

[0009] As a further preferred embodiment of this technical solution: a fourth sliding groove is provided on the inner wall of one of the L-shaped plates, and the first slider is slidably connected to the inside of the fourth sliding groove on the side of the L-shaped plate closest to it.

[0010] As a further preferred embodiment of this technical solution: the inner wall of the fourth sliding groove is bonded with a second rubber pad.

[0011] As a further preferred embodiment of this technical solution: a second limiting spring is welded to the side of the slide plate near the two L-shaped plates, and the end of the second limiting spring away from the slide plate is welded to the inside of the third slide groove.

[0012] As a further preferred embodiment of this technical solution: the inner top wall and inner bottom wall of the third slide groove are both provided with second slide grooves, and the upper surface and lower surface of the slide plate are both welded with second sliders, which are slidably connected to the inside of the second slide groove.

[0013] As a further preferred embodiment of this technical solution: the inner bottom wall of the limiting groove is provided with a through groove, and the limiting plate is slidably connected to the inside of the through groove.

[0014] As a further preferred embodiment of this technical solution: a first limiting spring is welded to the side of the first slider away from one of the L-shaped plates, and the end of the first limiting spring away from the first slider is welded to the inside of the first groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When assembling the stairs, one side of an L-shaped plate is placed inside the limiting groove, and one side of the first slider slides into the fourth slide groove to fix the L-shaped plate. When the slope of the stairs changes, the sliding plate is pulled out from the third slide groove to adjust the length of the extended sliding plate. At this time, the hand-held fixing block drives the screw to rotate inside the first threaded hole, thereby fixing the sliding plate. This allows the L-shaped plate to adapt to different slopes and avoids the phenomenon of stairs shaking during use caused by adjusting by hinge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a side view of the L-shaped plate structure in this invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the third groove in this invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the limiting groove in this invention;

[0022] Figure 6 This is a schematic diagram of the connection structure between the fixed plate and the hinge plate in this invention.

[0023] In the diagram: 1. L-shaped plate; 2. Limiting groove; 3. Fixing block; 4. Slide plate; 5. First rubber pad; 6. Second rubber pad; 7. First slider; 8. First slide groove; 9. First limiting spring; 10. Second slider; 11. Second slide groove; 12. First threaded hole; 13. Third slide groove; 14. Second limiting spring; 15. Hinge block; 16. Hinge plate; 17. Fixing screw; 18. Fixing plate; 19. Limiting plate; 20. Plate body; 21. Through groove; 22. Fourth slide groove; 23. Second threaded hole; 24. Screw. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example

[0026] Please see Figure 1-6This invention provides a technical solution: a prefabricated building staircase formwork structure, comprising two L-shaped plates 1, each L-shaped plate 1 having a limiting groove 2 on its upper surface, and the lower surface of the other L-shaped plate 1 being slidably connected to the interior of the limiting groove 2. A limiting plate 19 is provided on the inner bottom wall of the limiting groove 2, and a plate body 20 is welded to the lower surface of the limiting plate 19 through the inner bottom wall of the limiting groove 2. A first slider 7 is welded to the upper surface of the limiting plate 19. A first sliding groove 8 is provided on the inner side wall of the limiting groove 2. The first slider 7 is slidably connected to the side away from one L-shaped plate 1 and inside the first sliding groove 8. A third sliding groove 13 is provided on one side of each of the two L-shaped plates 1, and a sliding plate 4 is slidably connected inside the third sliding groove 13. A first threaded hole 12 is provided on the front and rear surfaces of the two L-shaped plates 1 and the sliding plate 4. A screw 24 is threadedly connected inside the first threaded hole 12, and a fixing block 3 is welded to the end of the screw 24 away from the sliding plate 4.

[0027] In this embodiment, specifically: hinge blocks 15 are welded to the upper surfaces of both L-shaped plates 1, and hinge plates 16 are hinged to the upper surfaces of the hinge blocks 15. Two fixing plates 18 are symmetrically welded to the inner wall of one L-shaped plate 1. The side of the hinge plate 16 away from the hinge block 15 is fixedly connected to the adjacent side of the two fixing plates 18. Through the arrangement of the hinge blocks 15, hinge plates 16 and fixing plates 18, the hinge plate 16 is fixed to one side between the two fixing plates 18 through the hinge of the hinge blocks 15, thereby supporting one L-shaped plate 1 and preventing the L-shaped plate 1 from shaking during use.

[0028] In this embodiment, specifically: a second threaded hole 23 is provided on each of the two adjacent sides of the two fixing plates 18, and a fixing screw 17 is threaded inside the second threaded hole 23; by rotating the fixing screw 17 threaded inside the second threaded hole 23 through the setting of the second threaded hole 23 and the fixing screw 17, the hinge plate 16 can be fixed between the two fixing plates 18, so as to avoid the phenomenon that the hinge plate 16 will fall off and fail to support an L-shaped plate 1.

[0029] In this embodiment, specifically: a first rubber pad 5 is adhered to the inner bottom wall of the limiting groove 2; by setting the first rubber pad 5, when an L-shaped plate 1 slides inside the limiting groove 2, the first rubber pad 5 can protect an L-shaped plate 1, avoiding the phenomenon of one L-shaped plate 1 rubbing against another L-shaped plate 1 and causing damage.

[0030] In this embodiment, specifically: an L-shaped plate 1 has a fourth sliding groove 22 on its inner wall, and a first slider 7 is slidably connected to the inside of the fourth sliding groove 22 on the side close to the L-shaped plate 1; by setting the fourth sliding groove 22, after the first slider 7 slides into the inside of the fourth sliding groove 22, it can limit the L-shaped plate 1 and prevent the L-shaped plate 1 from shaking inside the limiting groove 2.

[0031] In this embodiment, specifically: a second rubber pad 6 is adhered to the inner wall of the fourth slide groove 22; by setting the second rubber pad 6, when the first slider 7 slides inside the fourth slide groove 22, one side of the first slider 7 and the fourth slide groove 22 are protected, so as to prevent the first slider 7 from deforming and thus being unable to limit the operation of an L-shaped plate 1.

[0032] In this embodiment, specifically: a second limiting spring 14 is welded to the side of the slide plate 4 near the two L-shaped plates 1, and the end of the second limiting spring 14 away from the slide plate 4 is welded to the inside of the third slide groove 13; by setting the second limiting spring 14, when the slide plate 4 slides inside the third slide groove 13, the slide plate 4 squeezes the second limiting spring 14, and the deformation of the second limiting spring 14 can buffer the slide plate 4.

[0033] In this embodiment, specifically: the inner top wall and inner bottom wall of the third slide groove 13 are provided with second slide grooves 11, and the upper surface and lower surface of the slide plate 4 are welded with second sliders 10, which are slidably connected to the inside of the second slide groove 11; through the setting of the second slide groove 11 and the second slider 10, when the slide plate 4 slides inside the third slide groove 13, the second slider 10 slides inside the second slide groove 11, thereby limiting and guiding the slide plate 4.

[0034] In this embodiment, specifically: a through groove 21 is provided on the inner bottom wall of the limiting groove 2, and the limiting plate 19 is slidably connected to the inside of the through groove 21; through the setting of the through groove 21, when the limiting plate 19 drives the first slider 7 to slide left and right, the limiting plate 19 slides inside the through groove 21, thereby playing a limiting role for the limiting plate 19.

[0035] In this embodiment, specifically: a first limiting spring 9 is welded to the side of the first slider 7 away from an L-shaped plate 1, and the end of the first limiting spring 9 away from the first slider 7 is welded to the inside of the first slide groove 8; by setting the first limiting spring 9, the first slider 7 slides inside the first slide groove 8 to squeeze the first limiting spring 9, and the first limiting spring 9 deforms to make the first slider 7 slide out of the inside of the first slide groove 8.

[0036] The working principle or structural principle is as follows: During use, the operator places one L-shaped plate 1 inside the limiting groove 2 on the upper surface of another L-shaped plate 1. Simultaneously, pulling the plate body 20 causes the limiting plate 19 to slide inside the through groove 21. The limiting plate 19 causes the first slider 7 to slide inside the first slide groove 8. The first slider 7 compresses the first limiting spring 9. After one L-shaped plate 1 is placed inside the limiting groove 2, the plate body 20 is released. The first limiting spring 9 deforms, causing the first slider 7 to slide out of the first slide groove 8, allowing the other side of the first slider 7 to slide into the fourth slide groove 22, thus fixing one L-shaped plate 1. The hand-held hinge plate 16 is then connected via the hinge block 15. The hinge plate 16 is fixed between two fixed plates 18 on the other side. The fixing screw 17 rotates inside the second threaded hole 23 to fix the hinge plate 16. The hinge plate 16 supports an L-shaped plate 1. When the L-shaped plate 1 needs to be adjusted, the slide plate 4 is pulled out of the third slide groove 13 and the second limit spring 14 is pulled. The second slider 10 slides inside the second slide groove 11 to limit and guide the slide plate 4. At this time, the hand-held fixing block 3 drives the screw 24 to rotate inside the first threaded hole 12 to fix the slide plate 4. By adjusting the length of the slide plate 4, the L-shaped plate 1 can be adapted to different slopes, which is convenient and practical.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building staircase formwork structure, comprising two L-shaped plates (1), characterized in that: A limiting groove (2) is formed on the upper surface of one L-shaped plate (1), and the lower surface of the other L-shaped plate (1) is slidably connected to the interior of the limiting groove (2). A limiting plate (19) is provided on the inner bottom wall of the limiting groove (2). The lower surface of the limiting plate (19) penetrates the inner bottom wall of the limiting groove (2) and is welded with a plate body (20). A first slider (7) is welded to the upper surface of the limiting plate (19). A first sliding groove (8) is formed on the inner side wall of the limiting groove (2). The first slider (7) is away from... One side of the L-shaped plate (1) is slidably connected to the inside of the first slide groove (8), and a third slide groove (13) is provided on one side of both L-shaped plates (1). A slide plate (4) is slidably connected inside the third slide groove (13). A first threaded hole (12) is provided on the front and rear surfaces of both L-shaped plates (1) and the slide plate (4). A screw (24) is threadedly connected inside the first threaded hole (12). A fixing block (3) is welded to the end of the screw (24) away from the slide plate (4). The upper surfaces of the two L-shaped plates (1) are each welded with a hinge block (15), and the upper surface of the hinge block (15) is hinged with a hinge plate (16). The inner wall of one L-shaped plate (1) is symmetrically welded with two fixing plates (18), and the side of the hinge plate (16) away from the hinge block (15) is fixedly connected to the adjacent side of the two fixing plates (18). Each of the two fixing plates (18) has a second threaded hole (23) on one side adjacent to the other, and a fixing screw (17) is connected to the inside of the second threaded hole (23); A fourth sliding groove (22) is provided on the inner wall of one of the L-shaped plates (1), and the first slider (7) is slidably connected to the inside of the fourth sliding groove (22) on the side of one of the L-shaped plates (1); A second limiting spring (14) is welded to one side of the slide plate (4) near the two L-shaped plates (1), and the end of the second limiting spring (14) away from the slide plate (4) is welded to the inside of the third slide groove (13); The inner top wall and inner bottom wall of the third slide groove (13) are provided with second slide grooves (11), and the upper surface and lower surface of the slide plate (4) are welded with second sliders (10), which are slidably connected to the inside of the second slide groove (11). The inner bottom wall of the limiting groove (2) is provided with a through groove (21), and the limiting plate (19) is slidably connected to the inside of the through groove (21); A first limiting spring (9) is welded to the side of the first slider (7) away from one of the L-shaped plates (1), and the end of the first limiting spring (9) away from the first slider (7) is welded to the inside of the first groove (8).

2. The formwork structure for a prefabricated building staircase according to claim 1, characterized in that: The inner bottom wall of the limiting groove (2) is bonded with a first rubber pad (5).

3. The formwork structure for a prefabricated building staircase according to claim 1, characterized in that: The inner wall of the fourth groove (22) is bonded with a second rubber pad (6).

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