Novel prefabricated stair anchoring device

Abstract

The novel prefabricated stair anchoring device comprises a stair plate, a supporting plate is fixedly installed on the surface of the bottom of the stair plate, an anchoring plate is fixedly welded to one end of the supporting plate, anchoring through holes are formed in the surface of the anchoring plate, a first supporting plate is fixedly welded to the middle of the surface of the anchoring plate, and a second supporting plate is fixedly welded to the middle of the surface of the first supporting plate. An inclined framework is fixedly welded to the surface of one side of the first supporting plate, a second supporting plate is fixedly welded to one end of the inclined framework, the surface of one side of the second supporting plate is fixedly welded to one end of the lower surface of a supporting plate, and an arc-shaped framework is fixedly welded to one side of the inclined framework; the arc-shaped framework is located at the corner position of the lower surface of the stair plate, the two ends of the supporting plate are provided with combination holes, embedded screws are fixedly installed in the combination holes, multiple layers can be connected and supported, efficient installation and fixation are facilitated, the structural strength and stability are improved, and installation and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated stairs, and more specifically, to a novel prefabricated stair anchoring device. Background Technology

[0002] Precast stairs are one of the commonly used components in prefabricated buildings. They are produced in component factories and then transported to the construction site for installation. After installation, they can be used as on-site construction passages immediately, which is convenient and quick. In the production of precast stairs, the handrail embedded parts can be embedded in advance, and the anti-slip strips, drip lines and other structures are formed by casting in one go through fixed mold production, reducing the secondary processing of stairs on site. After forming, on-site anchoring and positioning are required.

[0003] The utility model patent with authorization announcement number CN 222375671 U discloses a novel precast staircase anchoring device, including a stair beam and an anchor rod. The surface of the stair beam has a mortar groove, and the interior of the mortar groove contains a support assembly and a vertical rod. The support assembly includes a support, a sliding table, an adjusting mechanism, a threaded sleeve, and a stud. One end of the vertical rod is welded to the bottom end of the support. A sleeve is fitted onto the surface of the vertical rod, and a pre-embedded component is connected to the bottom end of the sleeve. The pre-embedded component includes a protective cover, a reinforcing bar, and a reinforcing ring. A sliding table is slidably connected inside the support, and an anchor rod is welded to the top of the sliding table. An adjusting component is provided in the middle of the sliding table. The sleeve prevents direct contact between the vertical rod and the stair beam, allowing the vertical rod to rotate and adjust the position of the anchor rod. The adjusting component drives the sliding table, allowing adjustment of the sliding table's rotation radius. When there are installation errors in the precast staircase's mounting holes, the anchor rod can be adjusted to connect to the mounting holes of the precast staircase. The operation is simple.

[0004] In the aforementioned disclosed structure, the strength of the staircase structure is affected by setting grooves inside the stair beams and then combining them with threaded components for adjustment and alignment. The adjustment and alignment structure is relatively complex, which is not conducive to efficient adjustment. Furthermore, the bottom lacks support and anchoring structures, making it impossible to directly align with the side of the wall for fixed installation. This results in poor adaptability and needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel prefabricated staircase anchoring device. By connecting the stair slab base plate and the anchoring plate, it can be assembled and installed separately, thus directly aligning with the wall for anchoring. Furthermore, by welding inclined and arc-shaped frames at the bottom, it can ensure the support strength of a single-layer structure, and can also connect and support multiple layers, which is conducive to efficient installation and fixing, improves structural strength and stability, and facilitates installation and use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A novel prefabricated stair anchoring device includes a stair slab, a support plate fixedly installed on the bottom surface of the stair slab, an anchoring plate fixedly welded to one end of the support plate, an anchoring through hole on the surface of the anchoring plate, a first support plate fixedly welded to the middle position of the surface of the anchoring plate, an inclined frame fixedly welded to one side surface of the first support plate, a second support plate fixedly welded to one end of the inclined frame, a side surface of the second support plate fixedly welded to one end of the lower surface of the support plate, an arc-shaped frame fixedly welded to one side of the inclined frame, the arc-shaped frame being located at the corner of the lower surface of the stair slab, and combination holes provided at both ends of the support plate, with pre-embedded screws fixedly installed inside the combination holes at both ends of the support plate.

[0008] Furthermore, one end of the pre-embedded screw is threaded with a combination nut, which is pressed and connected to the lower surface of the support plate.

[0009] Furthermore, one end of the pre-embedded screw is fixedly connected to a pre-embedded head, which is fixedly embedded inside the stair tread.

[0010] Furthermore, the tray is connected in layers to the lower surface of the stair tread, and the anchor plate is perpendicular to one end of the tray. It is connected to the nut and the embedded head by pre-embedded screws, which can be embedded and fixed during the casting process, and then assembled separately to improve the stability of the tray connection, making it convenient and efficient.

[0011] Furthermore, the inclined frame is located directly below the stair tread, and the inclined angle is between 20 and 30 degrees.

[0012] Furthermore, the arc-shaped frame is fixedly welded to one end surface of the inclined frame, and is staggered and distributed on the side of the inclined frame.

[0013] Furthermore, the support plate is aligned with the bottom surface of the stair slab, and the anchor plate is located at the lower end of the stair slab. The inclined frame provides auxiliary support at both ends. Combined with the staggered arc-shaped frame, the multi-layer structure can be connected to each other, ensuring the strength of the support and reinforcement, and improving safety and stability.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution connects the support plate and anchor plate at the bottom of the stair slab, which can be assembled separately and installed directly to the wall for anchoring. Furthermore, by welding the inclined frame and arc frame at the bottom, the support strength of the single-layer structure can be guaranteed, and multiple layers can be connected and supported to facilitate efficient installation and fixation, improve structural strength and stability, and facilitate installation and use.

[0016] (2) By connecting the pre-embedded screws to the combined nuts and pre-embedded heads, they can be embedded and fixed during the casting process, and then assembled separately, which improves the stability of the tray connection and is convenient and efficient.

[0017] (3) By tilting the frame for positioning, auxiliary support can be provided at both ends. Combined with the staggered arc frame, the multi-layer structure can be connected to each other, ensuring the strength of the support reinforcement and improving safety and stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the connection between the support plate and the pre-embedded screws of this utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of this utility model;

[0022] Figure 5 This is a side view of the connection between the support plate and the anchor plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Stair tread, 11. Support plate, 12. Anchor plate, 13. Anchor through hole, 14. First support plate, 15. Inclined frame, 16. Second support plate, 17. Curved frame, 2. Combined hole, 21. Embedded screw, 22. Combined nut, 23. Embedded head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 and Figure 5A novel prefabricated stair anchoring device includes a stair slab 1. A support plate 11 is fixedly installed on the bottom surface of the stair slab 1. An anchoring plate 12 is fixedly welded to one end of the support plate 11. An anchoring through hole 13 is provided on the surface of the anchoring plate 12. By installing the support plate and the anchoring plate 12 at the bottom of the stair slab 1, they can be installed and fixed separately for convenient anchoring. A first support plate 14 is fixedly welded to the middle position of the surface of the anchoring plate 12. An inclined frame 15 is fixedly welded to one side of the surface of the first support plate 14. A second support plate 16 is fixedly welded to one end of the inclined frame 15. Welding the inclined frame 15 at the bottom can support the far end of the stair slab 1 to a position closer to the wall. On the anchor plate 12, the support strength can be improved and the safety and stability can be guaranteed. One side surface of the second support plate 16 is fixedly welded to one end of the lower surface of the support plate 11. An arc-shaped frame 17 is fixedly welded to one side of the inclined frame 15. The arc-shaped frame 17 is located at the corner of the lower surface of the stair slab 1. The two ends of the support plate 11 are provided with combination holes 2. The pre-embedded screws 21 are fixedly installed inside the combination holes 2. The pre-embedded screws 21 are fixedly installed at both ends of the support plate 11. When the stair slab 1 is cast, the pre-embedded head 23 can be directly embedded inside for forming and positioning, and the pre-embedded screws 21 flow out to facilitate the alignment and installation of the support plate 11, thereby improving the structural strength and stability.

[0027] Please see Figure 2 and Figure 4 One end of the pre-embedded screw 21 is threaded with a combination nut 22, which is pressed and connected to the lower surface of the support plate 11. One end of the pre-embedded screw 21 is fixedly connected with a pre-embedded head 23, which is fixedly embedded inside the stair tread 1. The support plate 11 is connected in layers to the lower surface of the steps of the stair tread 1. The anchor plate 12 is perpendicular to one end of the support plate 11. The combination nut and the pre-embedded head are connected by the pre-embedded screw, which can be embedded and fixed during the casting process, and then assembled separately to improve the stability of the support plate connection. This is convenient and efficient. When installing the support plate 11, the combination hole 2 is fitted onto the pre-embedded screw 21, and then the combination nut 22 is threaded and locked to install and fix it. This positions the support plate 11 and the anchor plate 12 under each stair tread, which is conducive to separate installation and fixing. Then, the bolts are aligned with the anchoring through hole 13 to the wall for anchoring installation. Each layer can be individually positioned to the wall, improving safety and stability and facilitating connection and use.

[0028] Please see Figure 1 , Figure 2 and Figure 4The inclined frame 15 is located directly below the stair tread 1, with an inclination angle of 20 to 30 degrees. The arc-shaped frame 17 is fixedly welded to one end surface of the inclined frame 15 and is staggered on the side of the inclined frame 15. The support plate 11 is aligned with the bottom surface of the stair tread 1, and the anchor plate 12 is located at the lower end of the stair tread 1. By positioning the inclined frame, auxiliary support can be provided at both ends. Combined with the staggered arc-shaped frame, the multi-layer structure can be connected to each other, ensuring the strength of the support and reinforcement, and improving safety and stability. First, the support plate 11 is positioned below the stair tread 1, and then it is anchored to the wall through the anchor plate 12. The stair tread 1 can be installed in layers. Then, the arc-shaped frame 17 is welded between adjacent inclined frames 15, which can be connected and positioned to provide auxiliary support, ensuring the strength of the support and improving the safety of use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A novel prefabricated stair anchoring device, comprising a stair slab (1), wherein a support plate (11) is fixedly installed on the bottom surface of the stair slab (1), and an anchoring plate (12) is fixedly welded to one end of the support plate (11), characterized in that: The surface of the anchor plate (12) is provided with an anchoring through hole (13). A first support plate (14) is fixedly welded to the middle position of the surface of the anchor plate (12). An inclined frame (15) is fixedly welded to one side of the first support plate (14). A second support plate (16) is fixedly welded to one end of the inclined frame (15). One side of the second support plate (16) is fixedly welded to one end of the lower surface of the support plate (11). An arc-shaped frame (17) is fixedly welded to one side of the inclined frame (15). The arc-shaped frame (17) is located at the corner of the lower surface of the stair tread (1). The two ends of the support plate (11) are provided with combination holes (2). Pre-embedded screws (21) are fixedly installed inside the combination holes (2). The pre-embedded screws (21) are fixedly installed at both ends of the support plate (11).

2. A new precast stair anchoring device according to claim 1, characterized in that: One end of the pre-embedded screw (21) is threaded with a combination nut (22), which is pressed and connected to the lower surface of the support plate (11).

3. A new precast stair anchoring device as claimed in claim 1, wherein: One end of the pre-embedded screw (21) is fixedly connected to a pre-embedded head (23), which is fixedly embedded in the interior of the stair tread (1).

4. A new precast stair anchoring device as claimed in claim 1, wherein: The support plate (11) is connected in layers to the lower surface of the stair slab (1), and the anchor plate (12) is perpendicular to one end of the support plate (11).

5. A new precast stair anchoring device as claimed in claim 1, wherein: The inclined frame (15) is located directly below the stair slab (1) and the inclined angle is between 20 and 30 degrees.

6. A new precast stair anchoring device as claimed in claim 1, wherein: The arc-shaped frame (17) is fixedly welded to one end surface of the inclined frame (15) and is distributed on the side of the inclined frame (15) in a staggered manner.

7. A new precast stair anchoring device as claimed in claim 1, wherein: The support plate (11) is aligned with the bottom surface of the stair slab (1), and the anchor plate (12) is located at the lower end of the stair slab (1).

Images