Temporary stair in fabricated building

Abstract

The utility model discloses a temporary stair in a fabricated building. Comprising a single-section stair, the single-section stair comprises stair plates and stair columns, the stair plates are detachably connected between the stair columns, first fixing plates are arranged at the lower ends of the stair columns, bent sections are arranged at the upper ends of the stair columns, second fixing plates are arranged at the lower ends of the bent sections, the single-section stair and a building structure are fixed through the fixing plates, and folding edges are arranged on the two sides of the stair plates. The folding edges are fixed to the inner sides of the ladder columns through bolts so that the ladder plates can be detachably connected with the ladder columns. Components of the single-section staircase are all detachably connected, the construction speed is high, the single-section staircase can be repeatedly used, the single-section staircase can be used for another building after being detached, energy conservation and environmental protection are achieved, and the safety of the staircase is improved through the design of the supporting columns and the design of the fixing plates connected with the building structure.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building construction, in particular to a temporary staircase in a prefabricated building. Background Art

[0002] With the continuous advancement of construction technology, prefabricated buildings have been widely used as green building systems. In existing prefabricated buildings, the temporary stairs of this utility model must be installed after the current layer is poured and reaches 75% of the required design strength. That is, the installation of stairs belongs to the post-installation process, but according to the normal process, it is impossible to wait for the stairs to be installed before construction. In order to solve the problem of construction workers working on the upper floor, a temporary staircase device must be used. In order to meet the construction needs, the temporary stairs that need to be designed must fully consider the requirements of smooth personnel passage, durability, and multiple turnover. Utility Model Content

[0003] The utility model provides a temporary staircase in an assembled building, which effectively improves the efficiency of erecting the temporary staircase, is turnaroundable and highly safe.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a temporary staircase in an assembled building, including a single-section staircase, the single-section staircase including a stair tread and a stair column, the stair tread being detachably connected between the stair columns for convenient transportation and turnover, a first fixing plate being arranged at the lower end of the stair column, a bending section being arranged at the upper end of the stair column, a second fixing plate being arranged at the lower end of the bending section, the single-section staircase being fixed to the building structure by the fixing plate, folded edges being arranged on both sides of the stair tread, the folded edges being fixed to the inner side of the stair column by bolts to realize the detachable connection between the stair tread and the stair column.

[0005] Preferably, a cross bar is provided at the lower part of the ladder plate, and both ends of the cross bar are passed through and fixed on the ladder column.

[0006] Preferably, a guardrail is provided on at least one side ladder column.

[0007] Preferably, the single-section staircase is arranged up and down to form a double-tread staircase, and a support column is arranged between the outer stair columns of the upper and lower stairs, the upper end of the support column is lifted and fixed to the stair column of the upper staircase, and the lower end of the support column is pulled up and fixed to the stair column of the lower staircase.

[0008] Preferably, the ladder column is made of I-shaped steel.

[0009] Preferably, one side of the upper end of the support column has a first snap-fitting portion opening upward, and the lower edge of the ladder column is snap-fitted into the first snap-fitting portion. The opposite side of the lower end of the support column has a second snap-fitting portion opening downward, and the lower edge of the ladder column is snap-fitted into the second snap-fitting portion, thereby forming an upward and downward pulling effect of the support column on the two sections of stairs, which is safer.

[0010] Preferably, the first fixing plate has an opening that matches the shape and size of the lower end of the ladder post and is used to accommodate the lower end of the ladder post.

[0011] Preferably, the opening of the first fixing plate has a folded edge, and the folded edge is fixed to the ladder column bolt.

[0012] Preferably, the second fixing plate has a slot matching the shape and size of the upper end of the ladder post, for accommodating the lower end of the ladder post.

[0013] Preferably, the slot of the second fixing plate has a bolt hole for fixing with a ladder column bolt.

[0014] Beneficial effects:

[0015] The utility model adopts the above technical solution. The components of a single-section staircase are all detachably connected, the construction speed is fast, and the staircase can be reused. After being dismantled, the staircase can be used in another building, which is energy-saving and environmentally friendly. The design of the support column and the design of the fixed plate connected to the building structure both increase the safety of the staircase. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation mode of the utility model and the beneficial effects of the utility model, the drawings required for use in the implementation mode or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some implementation modes of the utility model. For ordinary technicians in this field, other structures can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 The three-dimensional embodiment of the utility model Figure 1 ;

[0019] Figure 3 The three-dimensional embodiment of the utility model Figure 2 ;

[0020] Figure 4 for Figure 1 or Figure 2 Structural diagram of the middle ladder plate

[0021] Figure 5 for Figure 1 or Figure 2 Schematic diagram of the structure of the middle support column;

[0022] Figure 6 This is a schematic structural diagram of a first fixing plate at the lower end of a ladder column according to an embodiment of the utility model;

[0023] Figure 7It is a schematic diagram of the structure of the second fixing plate at the upper end of the ladder column in an embodiment of the utility model.

[0024] Description of the accompanying drawings: ladder board 1, ladder column 2, bending section 21, first fixing plate 3, opening 31, folded edge 32, second fixing plate 4, cross bar 5, guardrail 6, support column 7, first clamping part 71, second clamping part 72, main structure 8. DETAILED DESCRIPTION

[0025] Specific embodiments of the utility model:

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 A temporary staircase in an assembled building of the present embodiment includes a double-tread staircase formed by a single-section staircase, the single-section staircase includes a stair tread 1 and a stair column 2, the stair tread is detachably connected between the stair columns for convenient transportation and turnover, a first fixing plate 3 is arranged at the lower end of the stair column, a bending section 21 is arranged at the upper end of the stair column, a second fixing plate 4 is arranged at the lower end of the bending section, the single-section staircase is fixed to the building structure by the fixing plate, folding edges 11 are arranged on both sides of the stair tread, and the folding edges are fixed to the inner side of the stair column by bolts to realize the detachable connection between the stair tread and the stair column.

[0027] In this embodiment, a cross bar 5 is arranged at the lower part of the ladder board, and both ends of the cross bar are passed through and fixed on the ladder column.

[0028] In this embodiment, a guardrail 6 is provided on the ladder column.

[0029] In this embodiment, a support column 7 is arranged between the outer staircase columns of the upper and lower stairs of the double-tread staircase, the upper end of the support column is lifted and fixed to the staircase column of the upper staircase, and the lower end of the support column is pulled up and fixed to the staircase column of the lower staircase.

[0030] The ladder columns described in this embodiment are made of I-shaped steel.

[0031] The upper end of the support column of this embodiment has a first engaging portion 71 opening upward, and the lower edge of the ladder column is engaged in the first engaging portion. The lower end of the support column has a second engaging portion 72 opening downward on the opposite side, and the lower edge of the ladder column is engaged in the second engaging portion, so that the support column can lift and pull down the two sections of stairs, which is safer.

[0032] In this embodiment, the first fixing plate has an opening 31 that matches the shape and size of the lower end of the ladder post and is used to accommodate the lower end of the ladder post.

[0033] In this embodiment, the opening of the first fixing plate is provided with a folded edge 32, and the folded edge is fixed to the ladder column bolts.

[0034] In this embodiment, the second fixing plate has a groove that matches the shape and size of the upper end of the ladder post and is used to accommodate the bent section of the ladder post.

[0035] In this embodiment, bolt holes for fixing with ladder column bolts are arranged at the groove of the second fixing plate.

[0036] The temporary staircase of the utility model is efficiently assembled by stair treads and stair columns. It is made in a factory, and the stair columns are connected to the main structure 8 by bolts, so the construction speed is fast. It can also be reused and used in another building after being dismantled, which is energy-saving and environmentally friendly.

[0037] The ladder column adopts steel structure, which has good structural ductility and will not be brittle. Fixed plates are set at both ends of the ladder column, and limit bayonet is set on the fixed plate to effectively prevent slippage.

[0038] Fully bolted connection, free assembly.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A temporary staircase in a prefabricated building, characterized in that: The invention comprises a single-section staircase, which comprises a stair tread and a stair column. The stair tread is detachably connected between the stair columns. A first fixing plate is arranged at the lower end of the stair column, a bending section is arranged at the upper end of the stair column, and a second fixing plate is arranged at the lower end of the bending section. The single-section staircase is fixed to the building structure by the fixing plate. Folding edges are arranged on both sides of the stair tread. The folding edges are fixed to the inner side of the stair column by bolts to realize the detachable connection between the stair tread and the stair column.

2. The temporary staircase in the prefabricated building according to claim 1, characterized in that: A cross bar is arranged at the lower part of the ladder plate, and two ends of the cross bar are passed through and fixed on the ladder column.

3. The temporary staircase in the prefabricated building according to claim 1, characterized in that: A guardrail is provided on at least one side of the ladder column.

4. The temporary staircase in the prefabricated building according to claim 1, characterized in that: The single-stage staircase is arranged up and down to form a double-tread staircase, and a support column is arranged between the outer staircase columns of the upper and lower stairs. The upper end of the support column is lifted and fixed to the staircase column of the upper staircase, and the lower end of the support column is pulled up and fixed to the staircase column of the lower staircase.

5. The temporary staircase in the prefabricated building according to claim 4, characterized in that: The ladder column is made of I-shaped steel.

6. The temporary staircase in the prefabricated building according to claim 5, characterized in that: The upper end of the support column has a first engaging portion opening upward, and the lower edge of the ladder column is engaged in the first engaging portion. The lower end of the support column has a second engaging portion opening downward on the opposite side, and the lower edge of the ladder column is engaged in the second engaging portion.

7. The temporary staircase in the prefabricated building according to claim 6, characterized in that: The first fixing plate has an opening which matches the shape and size of the lower end of the ladder post and is used to accommodate the lower end of the ladder post.

8. The temporary staircase in the prefabricated building according to claim 7, characterized in that: The opening of the first fixing plate is provided with a folded edge, and the folded edge is fixed to the ladder column bolt.

9. The temporary staircase in the prefabricated building according to claim 8, characterized in that: The second fixing plate has a slot that matches the shape and size of the upper end of the ladder post and is used to accommodate the lower end of the ladder post.

10. The temporary staircase in the prefabricated building according to claim 9, characterized in that: Bolt holes are arranged at the slots of the second fixing plate.

Images