Prefabricated structure of assembly type stair

Abstract

The utility model provides a preassembling structure of an assembling type stair, which belongs to the field of constructional engineering and comprises a preassembling structure, the preassembling structure is used for installing an installing plate on an installing platform, the preassembling structure comprises an installing groove formed in the upper end of the installing platform, a plurality of connecting ribs are fixed in the installing groove, hanging ribs connected with the connecting ribs are installed on the installing plate, through grooves allowing pouring ribs to penetrate through are formed in the installing plate and protrusions in a penetrating mode, and the through grooves are connected with the connecting ribs. When the protrusion is located in the connecting groove, the mounting plate abuts against the inner bottom of the mounting groove. The installation stability of the prefabricated staircase can be guaranteed in a triple connection mode, due to the fact that the hanging ribs are connected with the connecting ribs in a hanging mode, the protrusions are matched with the connecting grooves, and the pouring ribs penetrate through the through grooves, the installation plate and the prefabricated staircase can be limited, namely pre-installation is conducted, and the prefabricated staircase is prevented from moving when being poured and reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a pre-installed structure of an assembled staircase. Background Art

[0002] As the main vertical transportation and emergency evacuation channel of a building, stairs have an important impact on the normal use and emergency evacuation of the entire building. Prefabricated stairs are stairs that are prefabricated first and then installed on site, making the construction of stairs in a building more efficient.

[0003] For example, the Chinese patent number CN110847525A discloses an assembled staircase that is easy to disassemble and assemble, including a base frame, a top plate and a bottom plate are fixed at both ends of the base frame, a first platform and a second platform are fixedly installed on the top plate and the bottom plate, a plurality of equally spaced step plates are fixed on the top outer wall of the base frame, and positioning blocks corresponding to the step plates are fixed on the base frame. During installation, the top plate and the bottom plate are fixed to the first platform and the second platform respectively through positioning columns.

[0004] When using the above-mentioned prefabricated staircase, since the top plate and the bottom plate are only fixed on the first platform and the second platform by positioning columns, the strength of the connection structure between the staircase and the building after the overall installation is insufficient and needs to be improved; for this reason, the present application proposes a prefabricated structure of the prefabricated staircase. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pre-assembled structure of an assembled staircase.

[0006] The embodiment of the utility model provides a pre-assembled structure of an assembled staircase, comprising:

[0007] A prefabricated staircase, wherein both ends of the prefabricated staircase are connected with mounting plates;

[0008] Two mounting platforms located on either side of the precast staircase;

[0009] Pre-installation structure; the pre-installation structure is used to install the mounting plate on the mounting platform, the pre-installation structure includes a mounting groove arranged at the upper end of the mounting platform, a plurality of connecting ribs are fixed in the mounting groove, hanging ribs connected to the connecting ribs are installed on the mounting plate, two connecting grooves are sunken in the mounting groove, casting ribs are provided in the connecting grooves, a protrusion matching the connecting groove is fixed at the bottom of the mounting plate, a through groove for the casting ribs to pass through is penetrated on the mounting plate and the protrusion, and when the protrusion is located in the connecting groove, the mounting plate abuts against the bottom of the mounting groove.

[0010] Furthermore, the prefabricated staircase, the mounting plate and the protrusion are integrally formed by casting.

[0011] Furthermore, the hanging bar is cast in the mounting plate by pre-embedding, and the hanging bar is in an L-shape.

[0012] Furthermore, the connecting ribs are cast in the installation platform by pre-embedding, and when the installation plate is in the installation groove, the hanging ribs are hung on the connecting ribs.

[0013] Furthermore, the casting reinforcement includes a plurality of vertical reinforcements distributed in a ring shape, and a plurality of ring reinforcements are tied to the outside of the vertical reinforcements.

[0014] Furthermore, the vertical reinforcement is cast in the installation platform by pre-embedding.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model can ensure the stability of the installation of the prefabricated stairs through a triple connection method. Due to the hanging of the hanging reinforcement and the connecting reinforcement, the cooperation of the protrusion and the connecting groove, and the casting reinforcement passing through the through groove, the installation plate and the prefabricated stairs can be limited, that is, pre-installed, to avoid the movement of the prefabricated stairs when being cast and reinforced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preassembled structure of an assembled staircase described in an embodiment of the utility model.

[0018] Figure 2 It is a side view of the preassembled structure of an assembled staircase described in an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of an installation platform in a pre-assembled structure of an assembled staircase described in an embodiment of the utility model.

[0020] In the above drawings: 1 prefabricated stairs, 2 mounting plates, 3 through grooves, 4 protrusions, 5 mounting platforms, 6 hanging bars, 7 mounting grooves, 8 connecting bars, 9 casting bars, and 10 connecting grooves. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides a pre-assembled structure of an assembled staircase, comprising:

[0023] A prefabricated staircase 1, both ends of which are connected to mounting plates 2, and the prefabricated staircase 1, the mounting plates 2 and the protrusions 4 are integrally formed by casting;

[0024] Two mounting platforms 5 located on both sides of the prefabricated staircase 1;

[0025] Pre-installed structure; the pre-installed structure is used to install the mounting plate 2 on the mounting platform 5, and the pre-installed structure includes a mounting groove 7 arranged at the upper end of the mounting platform 5, and a plurality of connecting ribs 8 are fixed in the mounting groove 7, and the connecting ribs 8 are cast in the mounting platform 5 by pre-embedding. When the mounting plate 2 is in the mounting groove 7, a hanging rib 6 connected to the connecting rib 8 is installed on the mounting plate 2, and the hanging rib 6 is cast in the mounting plate 2 by pre-embedding, and the hanging rib 6 is L-shaped; the hanging rib 6 is hung on the connecting rib 8, and then tied with a wire, and the hanging rib 6 is hung on the connecting rib 8 to increase the stability between the prefabricated staircase 1 and the mounting platform 5, and then the hanging rib 6 and the vacant part of the connecting rib 8 are cast to connect the mounting plate 2 to the mounting platform 5;

[0026] The installation groove 7 is sunken and provided with two connecting grooves 10, and the connecting grooves 10 are provided with casting bars 9, and the casting bars 9 include a plurality of vertical bars distributed in a ring shape, and a plurality of ring bars are tied to the outside of the vertical bars. The vertical bars are cast in the installation platform 5 by pre-embedded method, so that the casting bars 9 are in a circular cage shape, and the mounting plate 2 can be stably limited by pouring concrete;

[0027] The bottom of the mounting plate 2 is fixed with a protrusion 4 that matches the connecting groove 10. The mounting plate 2 and the protrusion 4 are penetrated with a through groove 3 for the casting rib 9 to pass through. When the protrusion 4 is located in the connecting groove 10, the mounting plate 2 abuts against the bottom of the mounting groove 7, and the upper end of the casting rib 9 is flush with the upper end of the mounting plate 2.

[0028] The protrusion 4 is partially located in the connection groove 10, further increasing the stability between the mounting plate 2 and the mounting platform 5; then, concrete is poured into the casting ribs 9 through the through groove 3 and compacted, so that the stability between the mounting plate 2 and the mounting platform 5 can be further increased;

[0029] Due to the connection between the hanging bar 6 and the connecting bar 8, the cooperation between the protrusion 4 and the connecting groove 10, and the casting bar 9 passing through the through groove 3, the mounting plate 2 and the prefabricated staircase 1 can be limited, that is, pre-installed to prevent the prefabricated staircase 1 from moving when being cast and reinforced.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A prefabricated structure of an assembled staircase, characterized in that: include: A prefabricated staircase (1), wherein both ends of the prefabricated staircase (1) are connected to mounting plates (2); Two mounting platforms (5) located on both sides of the prefabricated staircase (1); A pre-installed structure; the pre-installed structure is used to install a mounting plate (2) on a mounting platform (5), the pre-installed structure comprising a mounting groove (7) arranged at the upper end of the mounting platform (5), a plurality of connecting ribs (8) being fixed in the mounting groove (7), a hanging rib (6) connected to the connecting rib (8) being installed on the mounting plate (2), two connecting grooves (10) being sunken in the mounting groove (7), casting ribs (9) being arranged in each of the connecting grooves (10), a protrusion (4) being fixed at the bottom of the mounting plate (2) and cooperating with the connecting groove (10), a through groove (3) for the casting rib (9) to pass through being penetrated through the mounting plate (2) and the protrusion (4), and when the protrusion (4) is located in the connecting groove (10), the mounting plate (2) abuts against the bottom of the mounting groove (7).

2. The prefabricated structure of an assembled staircase according to claim 1, characterized in that: in: The prefabricated staircase (1), the mounting plate (2) and the protrusion (4) are integrally formed by casting.

3. The prefabricated structure of an assembled staircase according to claim 1, characterized in that: in: The hanging rib (6) is cast in the mounting plate (2) by pre-embedding, and the hanging rib (6) is in an L-shape.

4. The prefabricated structure of an assembled staircase according to claim 1, characterized in that: in: The connecting ribs (8) are cast in the installation platform (5) by pre-embedding, and when the installation plate (2) is in the installation groove (7), the hanging ribs (6) are hung on the connecting ribs (8).

5. The prefabricated structure of an assembled staircase according to claim 1, characterized in that: in: The casting reinforcement (9) comprises a plurality of vertical reinforcements distributed in a ring shape, and a plurality of ring reinforcements are tied to the outside of the vertical reinforcements.

6. The prefabricated structure of an assembled staircase according to claim 5, characterized in that: in: The vertical reinforcement is cast in the installation platform (5) by pre-embedding.

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