Fabricated stair

Abstract

The utility model relates to the technical field of assembly type buildings, in particular to an assembly type stair which comprises a stair body, an upper platform fixed to the top of the stair body and a lower platform fixed to the bottom of the stair body, a plurality of steel bar frames are fixed to the side wall of the upper platform, and inserting grooves matched with the steel bar frames are formed in the side wall of the lower platform. The inserting groove of the upper staircase is inserted into the reinforcing steel bar frame of the lower staircase; a plurality of reinforcing frames are fixed to the periphery of the steel bar frame, a U-shaped clamping groove is fixed to the side wall of the upper platform, a U-shaped clamping plate matched with the U-shaped clamping groove is fixed to the side wall of the lower platform, the upper platform and the lower platform are connected through the horizontal upper platform, and the top of the lower platform is provided with a sprue gate. And the effect of conveniently pouring cement is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to an assembled staircase. Background Art

[0002] Prefabricated stairs have the advantages of high installation efficiency and fast construction speed, and are usually used in building construction.

[0003] The Chinese utility model patent with announcement number CN217420288U, announced on September 13, 2022, discloses a prefabricated component suitable for assembled stairs. Reinforced platforms are added to the upper and lower platforms of the stair prefabricated components, and staggered reinforcing ribs are extended outside the reinforced platforms to connect the upper and lower prefabricated components of the stairs. At the same time, the beveled surface of the reinforcing platform increases the contact area between the staggered reinforcing ribs. The installation is simple and the structural strength of the stairwell is improved as a whole. However, the contact surface of the reinforcement platform of the prefabricated component is an inclined surface, which is not convenient for pouring cement to connect the upper and lower prefabricated components of the stairs, and is more troublesome to use. Utility Model Content

[0004] In view of the above problems, the utility model provides an assembled staircase, which is connected by a horizontal upper platform and a lower platform, and a pouring port is provided on the top of the lower platform to facilitate the pouring of cement.

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

[0006] An assembled staircase comprises a staircase body, an upper platform fixed to the top of the staircase body and a lower platform fixed to the bottom of the staircase body, a plurality of steel bars fixed to the side wall of the upper platform, a plug-in groove matching the steel bars provided on the side wall of the lower platform, the plug-in groove of the upper staircase is plugged into the steel bars of the lower staircase; a pouring port is provided at the top of the plug-in groove, and adjacent staircases are fixed by grouting through the pouring port.

[0007] Furthermore, a plurality of reinforcement frames are fixed on the outer periphery of the steel reinforcement frame.

[0008] Furthermore, a U-shaped slot is fixed on the side wall of the upper platform, and a U-shaped card plate matching the U-shaped slot is fixed on the side wall of the lower platform.

[0009] Furthermore, the U-shaped bracket is a steel plate.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model is connected by a horizontal upper platform and a lower platform, and a pouring port is provided on the top of the lower platform, so as to facilitate the pouring of cement.

[0012] 2. The utility model can complete the connection between two prefabricated staircase components by inserting the steel bar frame into the plug-in groove at the adjacent position, pouring concrete into the plug-in groove through the pouring port, and then fixing the steel bar frame inside the plug-in groove.

[0013] 3. The utility model can prevent concrete from dripping from the gap between the adjacent upper platform and lower platform by inserting the U-shaped card plate into the inside of the U-shaped card groove, which is beneficial to increase the connection strength between the prefabricated components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the middle A area;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the middle B area;

[0017] Figure 4 This is a schematic diagram of the staircase split structure;

[0018] Figure 5 This is a schematic diagram of the stair connection structure.

[0019] The accompanying drawings are marked as:

[0020] 1. Staircase body; 2. Upper platform; 21. Steel bar frame; 22. Reinforcement frame; 23. U-shaped slot; 3. Lower platform; 31. Connecting slot; 32. Casting port; 33. U-shaped pallet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1-Figure 5 As shown, the assembled staircase of this embodiment includes a staircase body 1, an upper platform 2 fixed to the top of the staircase body 1, and a lower platform 3 fixed to the bottom of the staircase body 1, a plurality of steel frames 21 are fixed to the side wall of the upper platform 2, and a plug-in groove 31 matching the steel frames 21 is opened on the side wall of the lower platform 3, and the plug-in groove 31 of the upper staircase is plugged into the steel frames 21 of the lower staircase; a pouring port 32 is opened on the top of the plug-in groove 31, and adjacent stairs are grouting and fixed through the pouring port 32.

[0023] Concrete is poured in the plug-in groove 31 between the adjacent upper platform 2 and lower platform 3, and the steel bar frame 21 is plugged into the concrete layer inside the plug-in groove 31. The steel bar frame 21 is fixedly connected to the steel bars inside the upper platform 2. By inserting the steel bar frame 21 into the plug-in groove 31 at the adjacent position, and then pouring concrete into the plug-in groove 31 through the pouring port 32, and then fixing the steel bar frame 21 inside the plug-in groove 31, the connection between the two prefabricated stair components can be completed, achieving the purpose of facilitating the pouring of concrete into the plug-in groove 31. The operation method is simple and convenient, which improves the efficiency of connecting prefabricated components and solves the problem that the contact surface of the reinforcement platform of the existing device is an inclined surface, which is not convenient for pouring cement to connect the upper and lower stair prefabricated components together and is more troublesome to use.

[0024] Furthermore, a plurality of reinforcement frames 22 are fixed to the outer periphery of the reinforcement frame 21 .

[0025] Furthermore, a U-shaped slot 23 is fixed to the side wall of the upper platform 2 , and a U-shaped clamping plate 33 matching the U-shaped slot 23 is fixed to the side wall of the lower platform 3 .

[0026] The U-shaped clip 33 is fixedly connected to the steel bars inside the lower platform 3. By inserting the U-shaped clip 33 into the U-shaped slot 23, it is possible to prevent concrete from dripping from the gap between the adjacent upper platform 2 and lower platform 3, which is beneficial to increasing the connection strength between the prefabricated components.

[0027] Furthermore, the U-shaped clamping plate 33 is a steel plate.

[0028] The method of using the utility model is:

[0029] When in use, the steel bar frame 21 is inserted into the plug-in groove 31 at the adjacent position, and then concrete is poured into the plug-in groove 31 through the pouring port 32. The U-shaped clip 33 is fixedly connected to the steel bars inside the lower platform 3. By inserting the U-shaped clip 33 into the U-shaped clip 33, concrete can be prevented from dripping from the gap between the adjacent upper platform 2 and lower platform 3, which is beneficial to increase the connection strength between the prefabricated components. Then, the steel bar frame 21 is fixed inside the plug-in groove 31 to complete the connection between the two prefabricated stair components.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled staircase, comprising a staircase body (1), an upper platform (2) fixed to the top of the staircase body (1), and a lower platform (3) fixed to the bottom of the staircase body (1), characterized in that: A plurality of steel bars (21) are fixed to the side wall of the upper platform (2); a plug-in groove (31) matching the steel bars (21) is provided on the side wall of the lower platform (3); the plug-in groove (31) of the upper staircase is plugged into the steel bars (21) of the lower staircase; a pouring port (32) is provided at the top of the plug-in groove (31); adjacent staircases are fixed by grouting through the pouring port (32).

2. The assembled staircase according to claim 1, characterized in that: A plurality of reinforcement frames (22) are fixed on the outer periphery of the steel bar frame (21).

3. The assembled staircase according to claim 1, characterized in that: A U-shaped card slot (23) is fixed on the side wall of the upper platform (2), and a U-shaped card plate (33) matching the U-shaped card slot (23) is fixed on the side wall of the lower platform (3).

4. The assembled staircase according to claim 3, characterized in that: The U-shaped clamping plate (33) is a steel plate.

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