Prefabricated reinforced concrete plate type stair

Abstract

The utility model relates to the field of prefabricated stairs, in particular to a prefabricated reinforced concrete plate type stair which comprises a stair body, connecting structures are arranged on the outer walls of the bottoms of the two ends of the stair body, and an embedded structure is arranged on one side of the outer wall of the top of the stair body. The connecting structure comprises two sets of first pre-buried grooves formed in the two sides of the outer walls of the bottoms of the two ends of the stair body, rubber bases placed in the first pre-buried grooves, and connecting bases slidably connected to the centers of the rubber bases. The embedded structure comprises third embedded grooves formed in the outer wall of the top of the stair body at equal intervals and threaded pipes placed in the third embedded grooves. According to the stair body, the rubber seats and the connecting screws at the two ends are aligned to the connecting seats and the embedded pipes at the corresponding positions, the rubber seats are inserted into the connecting seats, the connecting screws are inserted into the embedded pipes, the connecting nuts are connected to the outer walls of the connecting screws in a screwed mode, the stair body is fixed in a building, assembling is convenient, punching or slotting is avoided, and the strength is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated stairs, in particular to a prefabricated reinforced concrete slab-type staircase. Background Art

[0002] Prefabrication is a popular manufacturing process. A commercial product is not produced from start to finish in one factory. Currently, more prefabricated concrete parts are used in the construction industry. They are made in advance and assembled to speed up construction while ensuring strength.

[0003] Some prefabricated stairs are connected with metal parts. Since no corresponding space is left during prefabrication, holes or grooves need to be drilled. Once the prefabricated parts are grooved or drilled, the overall strength will be reduced. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems and shortcomings and proposes a prefabricated reinforced concrete slab staircase: the rubber seats and connecting screws at both ends of the staircase body are aligned with the connecting seats and embedded pipes at corresponding positions, the rubber seats are inserted into the connecting seats, the connecting screws are inserted into the embedded pipes, and the connecting nuts are screwed on the outer walls of the connecting screws to fix the staircase body in the building, which is convenient for assembly, avoids drilling or grooving, ensures strength, and solves the problem of strength reduction caused by grooving.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A prefabricated reinforced concrete slab staircase comprises a staircase body, wherein the bottom outer walls at both ends of the staircase body are provided with connection structures, and a pre-embedded structure is provided at one side of the top outer wall of the staircase body; the connection structure comprises two sets of pre-embedded grooves 1 opened on both sides of the bottom outer walls at both ends of the staircase body, a rubber seat placed in the pre-embedded groove 1 and a connection seat slidably connected to the center of the rubber seat; the pre-embedded structure comprises pre-embedded grooves 3 opened at equal distances on the top outer wall of the staircase body, a threaded pipe placed in the pre-embedded groove 3 and a threaded rod threadedly connected to the threaded pipe.

[0007] Preferably, the outer walls at both ends of the bottom of the staircase body are provided with two embedded grooves distributed at equal distances, and a connecting screw is provided in the two embedded grooves, the outer wall of the connecting screw is slidably connected with the embedded pipe, and the outer wall of the connecting screw is threadedly connected with a connecting nut;

[0008] According to the above scheme: the rubber seats and connecting screws at both ends of the stair body are aligned with the connecting seats and embedded pipes at corresponding positions, the rubber seats are inserted into the connecting seats, the connecting screws are inserted into the embedded pipes, and the connecting nuts are screwed on the outer walls of the connecting screws to fix the stair body in the building, which is convenient for assembly, avoids drilling or grooving, and ensures strength.

[0009] Preferably, a support rod is welded to the top outer wall of the threaded rod, and a cross bar is installed on the top outer wall of the support rod.

[0010] Preferably, a steel reinforcement frame is provided inside the stair body.

[0011] Preferably, the cross section of the rubber seat is a "concave"-shaped structure, and the cross section of the connecting seat is a "convex"-shaped structure.

[0012] Preferably, the outer wall of the bottom end of the support rod is in contact with the outer wall of the top of the staircase body;

[0013] According to the above scheme: the support rod is screwed into the threaded tube through the threaded rod, and the cross bar is installed on the top of multiple support rods to complete the assembly of the stair body, which is convenient for the subsequent installation of stair protection and ensures the strength and safety of the stairs.

[0014] The beneficial effects of the utility model are:

[0015] 1. Align the rubber seats and connecting screws at both ends of the staircase body with the connecting seats and embedded pipes at the corresponding positions, insert the rubber seats into the connecting seats, insert the connecting screws into the embedded pipes, and screw the connecting nuts onto the outer walls of the connecting screws to fix the staircase body in the building, which is convenient for assembly, avoids drilling or grooving, and ensures strength;

[0016] 2. The support rod is screwed into the threaded tube through the threaded rod, and the cross bar is installed on the top of multiple support rods to complete the assembly of the stair body, which is convenient for the subsequent installation of stair protection and ensures the strength and safety of the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the bottom unfolded structure of a prefabricated reinforced concrete slab staircase proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded structure of the support rods of a prefabricated reinforced concrete slab staircase proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of one side of a prefabricated reinforced concrete slab staircase proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a prefabricated reinforced concrete slab staircase.

[0021] In the figure: 1 stair body, 2 connecting structure, 3 embedded structure, 4 steel frame, 5 embedded groove one, 6 rubber seat, 7 connecting seat, 8 embedded groove two, 9 connecting screw rod, 10 embedded pipe, 11 connecting nut, 12 embedded groove three, 13 threaded pipe, 14 threaded rod, 15 support rod, 16 cross bar. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment 1:

[0024] Reference Figure 1-4 A prefabricated reinforced concrete slab staircase comprises a staircase body 1, the bottom outer walls of both ends of the staircase body 1 are provided with a connecting structure 2, and a pre-buried structure 3 is provided at one side of the top outer wall of the staircase body 1;

[0025] The embedded structure 3 includes embedded grooves 12 equidistantly provided on the top outer wall of the staircase body 1, a threaded pipe 13 placed in the embedded grooves 12, and a threaded rod 14 threadedly connected to the threaded pipe 13;

[0026] The top outer wall of the threaded rod 14 is welded with a support rod 15, and the top outer wall of the support rod 15 is installed with a cross bar 16. The support rod 15 is screwed into the threaded tube 13 through the threaded rod 14, and the cross bar 16 is installed on the top of the plurality of support rods 15 to complete the assembly of the staircase body 1.

[0027] The outer wall of the bottom end of the support rod 15 is in contact with the outer wall of the top of the staircase body 1;

[0028] A steel reinforcement frame 4 is provided inside the staircase body 1 .

[0029] Embodiment 2:

[0030] Reference Figure 1-3 The connection structure 2 includes two sets of embedded grooves 5 on both sides of the bottom outer wall of the two ends of the staircase body 1, a rubber seat 6 placed in the embedded groove 5 and a connection seat 7 slidably connected to the center of the rubber seat 6. The staircase body 1 and the building are inserted into the embedded pipe 10 in the building through the connecting screw 9. The connecting nut 11 tightens the connecting screw 9. The rubber seat 6 and the connection seat 7 are compressed between the two, which is convenient for connection, and the staircase body 1 is convenient for weakening vibration, easy to use, ensuring strength, and avoiding grooving;

[0031] The outer walls at both ends of the bottom of the staircase body 1 are provided with two embedded grooves 8 distributed at equal distances, and a connecting screw 9 is provided in the embedded groove 8, the outer wall of the connecting screw 9 is slidably connected with an embedded pipe 10, and the outer wall of the connecting screw 9 is threadedly connected with a connecting nut 11, the rubber seat 6 and the connecting screw 9 at both ends are aligned with the connecting seat 7 and the embedded pipe 10 at the corresponding position, the rubber seat 6 is inserted into the connecting seat 7, the connecting screw 9 is inserted into the embedded pipe 10, and the connecting nut 11 is screwed on the outer wall of the connecting screw 9 to fix the staircase body 1 in the building;

[0032] The cross section of the rubber seat 6 is a "concave"-shaped structure, and the cross section of the connecting seat 7 is a "convex"-shaped structure. The staircase body 1 is connected to the building body to compress the rubber seat 6 and the connecting seat 7, so that the staircase body 1 weakens some vibrations.

[0033] Working principle: When using, when prefabricating the staircase body 1, fix the rubber seat 6, connecting screw 9 and threaded pipe 13 in the mold of the prefabricated staircase in advance, and then use concrete to cast. After drying and demoulding, the rubber seat 6, connecting screw 9 and threaded pipe 13 are integrated with the staircase body 1, and the connecting seat 7 and embedded pipe 10 are cast in the building at the connection position with the staircase body 1. When installing the staircase body 1, lift the staircase body 1 and align the rubber seats 6 and connecting screws 9 at both ends. The rubber seat 6 is inserted into the connecting seat 7 and the embedded pipe 10 in the corresponding position, the connecting screw 9 is inserted into the embedded pipe 10, and the connecting nut 11 is screwed on the outer wall of the connecting screw 9 to fix the stair body 1 in the building. The stair body 1 is connected to the building body and the rubber seat 6 and the connecting seat 7 are compressed, so that the stair body 1 weakens part of the vibration. Finally, the support rod 15 is screwed into the threaded pipe 13 through the threaded rod 14, and the cross bar 16 is installed on the top of the multiple support rods 15 to complete the assembly of the stair body 1.

[0034] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A prefabricated reinforced concrete slab staircase, comprising a staircase body (1), characterized in that: The bottom outer walls of both ends of the staircase body (1) are provided with connection structures (2), and one side of the top outer wall of the staircase body (1) is provided with a pre-buried structure (3); The connection structure (2) comprises two sets of embedded grooves (5) provided on both sides of the bottom outer wall of the two ends of the staircase body (1), a rubber seat (6) placed in the embedded groove (5), and a connection seat (7) slidably connected to the center of the rubber seat (6); The embedded structure (3) comprises embedded grooves (12) which are arranged at equal intervals on the top outer wall of the staircase body (1), threaded pipes (13) placed in the embedded grooves (12), and threaded rods (14) threadedly connected to the threaded pipes (13).

2. A prefabricated reinforced concrete slab staircase according to claim 1, characterized in that: The outer walls at both ends of the bottom of the staircase body (1) are provided with two equally spaced embedded grooves (8), and a connecting screw (9) is provided in the two embedded grooves (8). The outer wall of the connecting screw (9) is slidably connected to the embedded pipe (10), and the outer wall of the connecting screw (9) is threadedly connected to the connecting nut (11).

3. The prefabricated reinforced concrete slab staircase according to claim 1, characterized in that: A support rod (15) is welded to the outer wall of the top end of the threaded rod (14), and a cross bar (16) is installed on the outer wall of the top end of the support rod (15).

4. The prefabricated reinforced concrete slab staircase according to claim 1, characterized in that: A steel reinforcement frame (4) is provided inside the staircase body (1).

5. The prefabricated reinforced concrete slab staircase according to claim 1, characterized in that: The cross section of the rubber seat (6) is a "concave"-shaped structure, and the cross section of the connecting seat (7) is a "convex"-shaped structure.

6. The prefabricated reinforced concrete slab staircase according to claim 3, characterized in that: The outer wall of the bottom end of the support rod (15) is in contact with the outer wall of the top end of the staircase body (1).

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