Fabricated stair for housing construction

Abstract

The utility model relates to the technical field of assembly type staircases, in particular to an assembly type staircase for housing construction, which comprises a staircase foundation and a prefabricated staircase, the staircase foundation is provided with a mounting groove for placing the prefabricated staircase, a metal fixing plate is pre-buried on the bottom surface of the mounting groove, two metal sliding plates are arranged on the metal fixing plate in a sliding manner, and the metal sliding plates are arranged on the mounting groove. The metal sliding plates are relatively fixed through fixing pieces, a positioning rod is fixedly connected to each metal sliding plate, and a positioning hole for the positioning rod to penetrate through is formed in the prefabricated stair. According to the assembly type stair for housing construction, the metal fixing plate is embedded in the bottom face of the mounting groove, the metal sliding plate can slide on the metal fixing plate so as to adjust the position of the positioning rod, and after the position of the positioning rod is determined, the metal fixing plate and the metal sliding plate are fixed through the fixing piece; and therefore, it is ensured that the positioning rods can be accurately matched with the positioning holes, and assembling of the prefabricated staircase is achieved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated staircase technology, and in particular to a prefabricated staircase for building construction. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to the construction site, and assembled and installed on-site using reliable connection methods.

[0003] During the installation of prefabricated stairs, two positioning rods are usually reserved in the foundation, and two positioning holes are reserved on the prefabricated stairs for the positioning rods to be inserted. After the positioning rods are inserted into the positioning holes, concrete is poured into the positioning holes to ensure the reliability of the connection between the foundation and the prefabricated stairs.

[0004] However, due to limitations in site management and construction equipment, the position of the pre-embedded positioning rods is often prone to deviation, or the positioning holes on the prefabricated stairs may be incorrectly prefabricated in the factory, which can make it difficult to assemble the prefabricated stairs. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to solve the technical problems in the prior art, this utility model provides a prefabricated staircase for building construction.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a prefabricated staircase for building construction, including a staircase foundation and a prefabricated staircase. The staircase foundation has an installation groove for placing the prefabricated staircase. A metal fixing plate is pre-embedded on the bottom surface of the installation groove. Two metal sliding plates slide on the metal fixing plate. Each metal sliding plate is relatively fixed to the other metal sliding plate by a fixing member. A positioning rod is fixedly connected to each metal sliding plate. The prefabricated staircase is provided with a positioning hole for the positioning rod to pass through.

[0007] This utility model relates to a prefabricated staircase for building construction. By pre-embedding a metal fixing plate on the bottom surface of the installation groove, a metal sliding plate can slide on the metal fixing plate to adjust the position of the positioning rod. After the position of the positioning rod is determined, the metal fixing plate and the metal sliding plate are fixed by a fastener, thereby ensuring that the positioning rod can accurately match the positioning hole and realize the assembly of the prefabricated staircase.

[0008] Furthermore, the fixing method of the fastener is to weld the metal fixing plate to the metal sliding plate.

[0009] Furthermore, a groove is provided on the metal fixing plate along its own length, and the metal sliding plate slides in the groove.

[0010] Furthermore, the metal fixing plate is provided with a first rubber pad for contacting the prefabricated staircase.

[0011] Furthermore, a second rubber pad for contacting the prefabricated staircase is provided on the side wall of the mounting groove.

[0012] Furthermore, a reinforcing sleeve is fitted onto the positioning rod, and the maximum outer diameter of the reinforcing sleeve is smaller than the inner diameter of the positioning hole.

[0013] Furthermore, the reinforcing sleeve is fixedly connected with reinforcing spikes, and the reinforcing spikes are arranged in multiple groups along the circumference of the reinforcing sleeve, and each group of reinforcing spikes is arranged in multiple groups along the axial direction of the reinforcing sleeve.

[0014] Furthermore, the reinforcing spikes are inclined toward the metal sliding plate.

[0015] Furthermore, the reinforcing sleeve is threadedly connected to the positioning rod.

[0016] Furthermore, the fastener is a bolt.

[0017] The beneficial effects of this utility model are:

[0018] 1. By pre-embedding a metal fixing plate on the bottom surface of the installation groove, the metal sliding plate can slide on the metal fixing plate to adjust the position of the positioning rod. After the position of the positioning rod is determined, the metal fixing plate and the metal sliding plate are fixed by the fastener, thereby ensuring that the positioning rod can accurately match the positioning hole and realize the assembly of the prefabricated staircase.

[0019] 2. The reinforcing spikes and reinforcing sleeves can increase the contact area with the concrete when the positioning hole is filled with concrete, thereby improving the reliability of the connection between the positioning rod and the precast staircase. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram illustrating the overall structure of the prefabricated staircase used in building construction in this utility model.

[0022] Figure 2 This is a schematic diagram illustrating the reinforcing sleeve and the sliding groove in this utility model.

[0023] In the diagram: 1. Staircase foundation; 11. Metal fixing plate; 111. Slide groove; 12. Metal sliding plate; 13. First rubber pad; 14. Second rubber pad; 15. Positioning rod; 16. Reinforcing sleeve; 161. Reinforcing spike; 2. Precast staircase; 21. Positioning hole. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] This utility model discloses a prefabricated staircase for building construction.

[0027] Reference Figure 1 and Figure 2 A prefabricated staircase for building construction includes a staircase foundation 1 and a prefabricated staircase 2. The staircase foundation 1 has an installation groove for placing the prefabricated staircase 2. A metal fixing plate 11 is embedded in the bottom surface of the installation groove. Two metal sliding plates 12 slide on the metal fixing plate 11. Each metal sliding plate 12 is relatively fixed to the other metal sliding plate 12 by a fastener. A positioning rod 15 is fixedly connected to each metal sliding plate 12. The prefabricated staircase 2 has a positioning hole 21 for the positioning rod 15 to pass through. By embedding the metal fixing plate 11 in the bottom surface of the installation groove, the metal sliding plates 12 can slide on the metal fixing plate 11 to adjust the position of the positioning rod 15. After the position of the positioning rod 15 is determined, the metal fixing plate 11 and the metal sliding plates 12 are fixed by the fastener, thereby ensuring that the positioning rod 15 can accurately fit with the positioning hole 21, realizing the assembly of the prefabricated staircase 2.

[0028] Specifically, the fastener is fixed by welding the metal fixing plate 11 to the metal sliding plate 12. In another embodiment, the fastener can also be a bolt, which can improve construction efficiency.

[0029] A groove 111 is provided on the metal fixing plate 11 along its own length direction. The metal sliding plate 12 slides in the groove 111. The groove 111 facilitates the sliding of the metal sliding plate 12. At the same time, the side wall of the groove 111 is welded to the metal sliding plate 12, so that in addition to adjusting the position, the angle of the metal sliding plate 12 can also be adjusted by adding a pad under the metal sliding plate 12 to ensure that the positioning rod 15 can perfectly match the positioning hole 21.

[0030] The metal fixing plate 11 is provided with a first rubber pad 13 for contacting the prefabricated staircase 2. In another embodiment, a concrete layer can be provided between the metal fixing plate 11 and the first rubber pad 13, that is, after the metal sliding plate 12 is welded to the metal fixing plate 11, a layer of concrete is poured on the metal fixing plate 11 to further improve the reliability of the connection between the metal sliding plate 12 and the metal fixing plate 11.

[0031] In addition, a second rubber pad 14 is provided on the side wall of the mounting groove for contact with the prefabricated staircase 2.

[0032] Specifically, a reinforcing sleeve 16 is threaded onto the positioning rod 15, and the maximum outer diameter of the reinforcing sleeve 16 is smaller than the inner diameter of the positioning hole 21. Reinforcing spikes 161 are fixedly connected to the reinforcing sleeve 16, with multiple sets of the reinforcing spikes 161 arranged circumferentially along the reinforcing sleeve 16, and multiple sets of the reinforcing spikes 161 arranged axially along the reinforcing sleeve 16. The reinforcing spikes 161 are inclined towards the metal sliding plate 12. The reinforcing spikes 161 and the reinforcing sleeve 16 increase the contact area with concrete when concrete is poured into the positioning hole 21, thereby improving the connection reliability between the positioning rod 15 and the precast staircase 2.

[0033] Working principle: By pre-embedding a metal fixing plate 11 on the bottom surface of the mounting groove, the metal sliding plate 12 can slide on the metal fixing plate 11 to adjust the position of the positioning rod 15. After the position of the positioning rod 15 is determined, the metal fixing plate 11 and the metal sliding plate 12 are fixed by the fastener, thereby ensuring that the positioning rod 15 can accurately match the positioning hole 21 and realize the assembly of the prefabricated staircase 2.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A prefabricated staircase for building construction, characterized in that, The system includes a stair base (1) and a prefabricated staircase (2). The stair base (1) has an installation groove for placing the prefabricated staircase (2). A metal fixing plate (11) is embedded in the bottom surface of the installation groove. Two metal sliding plates (12) slide on the metal fixing plate (11). Each metal sliding plate (12) is relatively fixed to the other metal sliding plate (12) by a fastener. A positioning rod (15) is fixedly connected to each metal sliding plate (12). The prefabricated staircase (2) is provided with a positioning hole (21) for the positioning rod (15) to pass through.

2. The prefabricated staircase for building construction according to claim 1, characterized in that, The fixing method of the fastener is to weld the metal fixing plate (11) to the metal sliding plate (12).

3. The prefabricated staircase for building construction according to claim 1, characterized in that, The metal fixing plate (11) has a groove (111) along its own length direction, and the metal sliding plate (12) slides in the groove (111).

4. The prefabricated staircase for building construction according to claim 1, characterized in that, The metal fixing plate (11) is provided with a first rubber pad (13) for contacting the prefabricated staircase (2).

5. The prefabricated staircase for building construction as described in claim 1, characterized in that, The side wall of the mounting groove is provided with a second rubber pad (14) for contacting the prefabricated staircase (2).

6. The prefabricated staircase for building construction as described in claim 1, characterized in that, A reinforcing sleeve (16) is fitted on the positioning rod (15), and the maximum outer diameter of the reinforcing sleeve (16) is smaller than the inner diameter of the positioning hole (21).

7. The prefabricated staircase for building construction as described in claim 6, characterized in that, The reinforcing sleeve (16) is fixedly connected with reinforcing spikes (161), and there are multiple sets of reinforcing spikes (161) arranged circumferentially along the reinforcing sleeve (16), and each set of reinforcing spikes (161) is arranged axially along the reinforcing sleeve (16).

8. The prefabricated staircase for building construction as described in claim 7, characterized in that, The reinforcing spikes (161) are inclined toward the metal sliding plate (12).

9. The prefabricated staircase for building construction as described in claim 6, characterized in that, The reinforcing sleeve (16) is threadedly connected to the positioning rod (15).

10. The prefabricated staircase for building construction as described in claim 1, characterized in that, The fastener is a bolt.

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