Prefabricated stair of fabricated building

Abstract

The utility model relates to a prefabricated stair of an assembly type building, which belongs to the technical field of assembly type buildings and comprises a prefabricated stair, and prefabricated connecting plates and prefabricated abutting plates are arranged on the left side and the right side of the prefabricated stair. According to the prefabricated staircase of the fabricated building, by arranging the mounting structures, the mounting structures are assembled on the prefabricated connecting plates and the prefabricated abutting plates on the left side and the right side of the prefabricated staircase, so that during assembling, a connecting column can be inserted into an abutting groove of a second-floor floor, and an annular locking plate is rotated through an annular handle; the annular locking plate is controlled to move upwards and be inserted into a fixing groove formed in the butt joint groove, so that the position of the connecting column is limited, a second floor slab and the prefabricated connecting plate are firmly installed through the two connecting columns, then the prefabricated stair is more convenient and faster to install, the problem that bolts need to be embedded in the floor slab during installation of the prefabricated stair is solved, and the installation efficiency of the prefabricated stair is improved. The labor intensity of workers is reduced.

Description

Technical Field

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

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories such as floor slabs, wall panels, stairs, balconies, etc. are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connections. Prefabricated buildings mainly include prefabricated concrete structures, steel structures, modern wooden structures, etc., and are representatives of modern industrialized production methods because of their standardized design, factory production, assembly construction, information management, and intelligent applications. Prefabricated stairs are a major component of prefabricated buildings.

[0003] In the current existing technology, prefabricated stairs are components prefabricated in factories, which are transported to the construction site by special transport vehicles and then installed. This not only avoids the existence of cracks and gaps, but also shortens the construction period and meets its functional requirements. When installing the prefabricated stairs, it is necessary to embed pins in the floor slab, align the docking holes at one end of the prefabricated stairs with the pins and sleeve them on the pins, and then fill them with concrete, which makes the installation of the prefabricated stairs more troublesome. Therefore, a prefabricated staircase for assembled buildings is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a prefabricated staircase for an assembled building, which has the advantage of being easy to install. It solves the problem that when installing the prefabricated staircase, it is necessary to embed pins in the floor slab, align the docking holes at one end of the prefabricated staircase with the pins and sleeve them on the pins, and then fill them with concrete, which makes the installation of the prefabricated staircase more troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated staircase of an assembled building, comprising a prefabricated staircase, wherein the left and right sides of the prefabricated staircase are both provided with a prefabricated connecting plate and a prefabricated abutting plate, the left and right sides of the prefabricated staircase are both provided with a second floor slab and a first floor slab, and the prefabricated connecting plate is provided with a mounting structure;

[0006] The installation structure includes a storage groove opened inside the prefabricated connecting plate, the prefabricated connecting plate is fixedly installed with an embedded column that penetrates into the storage groove, a connecting tube is rotatably installed on the embedded column, a connecting component for supporting the rotation of the connecting tube is provided on the outer surface of the embedded column, a connecting column for connecting the prefabricated connecting plate and the second floor slab is fixedly installed on the bottom of the connecting tube, a docking groove for docking the embedded column is opened inside the second floor slab, and a locking structure for fixing is provided on the outer surface of the connecting column.

[0007] Furthermore, the locking structure includes an annular locking plate, which is threadedly mounted on the outer surface of the connecting column, and an annular handle for controlling the rotation of the annular locking plate is fixedly connected to the bottom of the annular locking plate.

[0008] Furthermore, the prefabricated connecting plate and the prefabricated abutting plate are respectively fixedly installed on the left and right sides of the prefabricated staircase, the second floor slab is located on the left side of the prefabricated connecting plate, and the first floor slab is located on the right side of the prefabricated abutting plate.

[0009] Furthermore, the connection assembly includes two bearings, both of which are fixedly mounted on the outer surface of the embedded column, and the outer peripheral walls of the two bearings are fixedly connected to the inner peripheral wall of the connection tube.

[0010] Furthermore, the number of the storage grooves is two and both are opened inside the prefabricated connecting plate, the number of the docking grooves is the same as the number of the storage grooves, and the number of the embedded columns, connecting components, connecting tubes, docking grooves, connecting columns and locking structures are two and are respectively installed inside the two storage grooves.

[0011] Furthermore, the docking groove includes a through groove and a locking groove, the through groove is opened on the right side of the second floor slab, the locking groove is opened at the bottom of the second floor slab, the through groove and the locking groove are connected, and the size of the locking groove is adapted to the size of the annular locking plate.

[0012] Furthermore, the annular handle includes a connecting ring and a connecting rod, one end of the connecting rod is fixedly mounted on the bottom of the annular locking plate, and the other end of the connecting rod is fixedly connected to the outer surface of the connecting ring.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The prefabricated staircase of the assembled building is provided with an installation structure, which realizes the assembly of the installation structure on the prefabricated connecting plates and the prefabricated abutment plates on the left and right sides of the prefabricated staircase, so that during assembly, the connecting column can be used to insert into the docking groove of the second floor slab, and the annular locking plate can be rotated by using the annular handle to control the annular locking plate to move up and insert into the fixing groove opened in the docking groove, so as to limit the position of the connecting column, so that the second floor slab and the prefabricated connecting plate are firmly installed through the two connecting columns, thereby making the installation of the prefabricated staircase more convenient and quick, solving the problem of the need to pre-embed pins on the floor slab during the installation of the prefabricated staircase, reducing the labor intensity of the staff, and enhancing the practicality of the prefabricated staircase of the assembled building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 A in the enlarged view;

[0017] Figure 3 It is a three-dimensional schematic diagram of the prefabricated staircase and the second floor slab of the utility model structure.

[0018] In the figure: 1. Prefabricated stairs; 2. Second floor slab; 3. Prefabricated connecting plate; 4. Prefabricated abutment plate; 5. First floor slab; 61. Storage groove; 62. Embedded column; 63. Connection assembly; 64. Connecting tube; 65. Docking groove; 66. Connecting column; 67. Ring locking plate; 68. Ring handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A prefabricated staircase of an assembled building in this embodiment includes a prefabricated staircase 1, and a prefabricated connecting plate 3 and a prefabricated abutment plate 4 are arranged on the left and right sides of the prefabricated staircase 1. A second floor slab 2 and a first floor slab 5 are arranged on the left and right sides of the prefabricated staircase 1. A mounting structure is arranged on the prefabricated connecting plate 3. The prefabricated connecting plate 3 and the prefabricated abutment plate 4 are fixedly installed on the left and right sides of the prefabricated staircase 1 respectively. The second floor slab 2 is located on the left side of the prefabricated connecting plate 3, and the first floor slab 5 is located on the right side of the prefabricated abutment plate 4.

[0021] In addition, there are two mounting structures, which are respectively mounted on the prefabricated connecting plate 3 and the prefabricated abutting plate 4 , thereby facilitating the installation on the left and right sides of the prefabricated staircase 1 .

[0022] In the implementation of this example, the installation structure includes a storage groove 61 opened in the interior of the prefabricated connecting plate 3, and the prefabricated connecting plate 3 is fixedly installed with an embedded column 62 that penetrates into the interior of the storage groove 61. A connecting tube 64 is rotatably installed on the embedded column 62, so that the embedded column 62 is firmly connected to the prefabricated connecting plate 3, and the outer surface of the embedded column 62 is provided with a connecting component 63 for supporting the rotation of the connecting tube 64, which is convenient for supporting the rotation of the connecting tube 64. The connecting component 63 includes two bearings, both of which are fixedly installed on the outer surface of the embedded column 62, and the outer peripheral walls of the two bearings are fixedly connected to the inner peripheral wall of the connecting tube 64, which is convenient for supporting the rotation of the connecting tube 64. A connecting column 66 for connecting the prefabricated connecting plate 3 and the second floor slab 2 is fixedly installed at the bottom of the connecting tube 64, and a docking groove 65 for docking the embedded column 62 is opened inside the second floor slab 2. The outer surface of the connecting column 66 is provided with a locking structure for fixing, which is convenient for locking the position of the connecting column 66.

[0023] Among them, the number of storage grooves 61 is two and both are opened inside the prefabricated connecting plate 3, the number of docking grooves 65 is the same as the number of storage grooves 61, the number of embedded columns 62, connecting components 63, connecting tubes 64, docking grooves 65, connecting columns 66 and locking structures are all two and are respectively installed inside the two storage grooves 61, so as to facilitate the stable connection between the second floor slab 2 and the prefabricated staircase 1 through two connecting columns 66 and two locking structures.

[0024] By adopting the above technical solution, the connecting column 66 is rotated so that the connecting column 66 is perpendicular to the second floor slab 2, and the prefabricated staircase 1 is lifted to one side, so that the connecting column 66 is inserted into the docking groove 65 opened on the second floor slab 2, and then the position of the connecting column 66 is fixed by the locking structure, so as to quickly install one side of the prefabricated staircase 1.

[0025] In the implementation of this example, the locking structure includes an annular locking plate 67, which is convenient for fixing the position of the connecting column 66. The annular locking plate 67 is threadedly installed on the outer surface of the connecting column 66. The bottom of the annular locking plate 67 is fixedly connected with an annular handle 68 for controlling the rotation of the annular locking plate 67. The annular handle 68 includes a connecting ring and a connecting rod. One end of the connecting rod is fixedly installed on the bottom of the annular locking plate 67, and the other end of the connecting rod is fixedly connected to the outer surface of the connecting ring, which is convenient for rotating the annular handle 68 and driving the annular locking plate 67 to rotate.

[0026] Among them, the docking groove 65 includes a through groove and a locking groove. The through groove is opened on the right side of the second floor slab 2, and the locking groove is opened at the bottom of the second floor slab 2. The through groove and the locking groove are connected. The size of the locking groove is compatible with the size of the annular locking plate 67, which is convenient for inserting the annular locking plate 67 into the locking groove to fix the position of the connecting column 66.

[0027] By adopting the above technical solution, it is possible to control the synchronous rotation of the annular locking plate 67, thereby moving the annular locking plate 67 upward until the annular locking plate 67 is inserted into the locking groove in the docking groove 65, and then repeat the above steps to insert the second annular locking plate 67 into the locking groove in the docking groove 65, thereby achieving the rapid installation of one side of the prefabricated staircase 1, and finally the prefabricated staircase 1 and the first floor slab 5 are installed by the same method.

[0028] The working principle of the above embodiment is:

[0029] When the prefabricated staircase of the assembled building is in use, the connecting column 66 is rotated so that the connecting column 66 is perpendicular to the second floor slab 2, and the prefabricated staircase 1 is lifted to one side so that the connecting column 66 is inserted into the docking groove 65 opened on the second floor slab 2, and then the annular handle 68 is rotated to control the synchronous rotation of the annular locking plate 67, so that the annular locking plate 67 moves upward until the annular locking plate 67 is inserted into the locking groove in the docking groove 65, and then the above steps are repeated to insert the second annular locking plate 67 into the locking groove in the docking groove 65, so as to quickly install one side of the prefabricated staircase 1, and finally the prefabricated staircase 1 and the first floor slab 5 are installed in the same way.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] 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. A prefabricated staircase for an assembled building, comprising a prefabricated staircase (1), characterized in that: The left and right sides of the prefabricated staircase (1) are both provided with prefabricated connecting plates (3) and prefabricated abutting plates (4), the left and right sides of the prefabricated staircase (1) are both provided with second floor slabs (2) and first floor slabs (5), and the prefabricated connecting plates (3) are provided with mounting structures; The installation structure comprises a receiving groove (61) provided inside the prefabricated connecting plate (3); the prefabricated connecting plate (3) is fixedly provided with an embedded column (62) penetrating into the receiving groove (61); a connecting tube (64) is rotatably installed on the embedded column (62); a connecting assembly (63) for supporting the rotation of the connecting tube (64) is provided on the outer surface of the embedded column (62); a connecting column (66) for connecting the prefabricated connecting plate (3) and the second floor slab (2) is fixedly provided at the bottom of the connecting tube (64); a docking groove (65) for docking the embedded column (62) is provided inside the second floor slab (2); and a locking structure for fixing is provided on the outer surface of the connecting column (66).

2. The prefabricated staircase for an assembled building according to claim 1, characterized in that: The locking structure comprises an annular locking plate (67), wherein the annular locking plate (67) is threadedly mounted on the outer surface of the connecting column (66), and an annular handle (68) for controlling the rotation of the annular locking plate (67) is fixedly connected to the bottom of the annular locking plate (67).

3. The prefabricated staircase for an assembled building according to claim 1, characterized in that: The prefabricated connecting plate (3) and the prefabricated abutting plate (4) are respectively fixedly installed on the left and right sides of the prefabricated staircase (1); the second floor slab (2) is located on the left side of the prefabricated connecting plate (3); and the first floor slab (5) is located on the right side of the prefabricated abutting plate (4).

4. The prefabricated staircase for an assembled building according to claim 1, characterized in that: The connection assembly (63) includes two bearings, the two bearings are fixedly mounted on the outer surface of the embedded column (62), and the outer peripheral walls of the two bearings are fixedly connected to the inner peripheral wall of the connection tube (64).

5. The prefabricated staircase for an assembled building according to claim 1, characterized in that: The number of the receiving grooves (61) is two and both are opened inside the prefabricated connecting plate (3); the number of the docking grooves (65) is the same as the number of the receiving grooves (61); the number of the embedded columns (62), the connecting components (63), the connecting tubes (64), the docking grooves (65), the connecting columns (66) and the locking structures are two and are respectively installed inside the two receiving grooves (61).

6. The prefabricated staircase for an assembled building according to claim 2, characterized in that: The docking groove (65) includes a through groove and a locking groove, wherein the through groove is arranged on the right side of the second floor slab (2), and the locking groove is arranged on the bottom of the second floor slab (2). The through groove and the locking groove are connected, and the size of the locking groove is adapted to the size of the annular locking plate (67).

7. The prefabricated staircase for an assembled building according to claim 2, characterized in that: The annular handle (68) comprises a connecting ring and a connecting rod, one end of the connecting rod is fixedly mounted on the bottom of the annular locking plate (67), and the other end of the connecting rod is fixedly connected to the outer surface of the connecting ring.

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