Fabricated building stair clamping column fixing device

Abstract

The utility model relates to an assembly type building stair clamping column fixing device, which belongs to the technical field of assembly type buildings and comprises a fixing plug, a fixing bottom plate and a fixing column, the fixing bottom plate is embedded into a building main body, the fixing column is embedded into a prefabricated stair, and a stair fixing mechanism is arranged among the fixing bottom plate, the fixing column and the fixing plug. According to the fabricated building stair clamping column fixing device, the threaded rods and the fixing sleeves are arranged on the fixing bottom plate, the fixing grooves are formed in the fixing columns, and the threaded cylinders, the vertical pouring holes and the transverse pouring holes are formed in the fixing plugs, so that the fixing columns can be clamped together through the fixing sleeves when the fabricated building stair clamping column fixing device is used; the connection between the building main body and the prefabricated stair is more stable, the fixing plugs can be fixed in the fixing grooves through the threaded rods and the threaded cylinders, the fixing grooves are filled with the fixing plugs, gaps in the fixing grooves can be reduced through the conical structures of the fixing plugs and the fixing grooves, and then the pouring amount of cement paste can be reduced; the solidification speed of the cement paste can be conveniently accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a stair column fixing device for assembled buildings. Background Art

[0002] Prefabricated building stairs refer to a construction method in which stairs are made using prefabricated components and then assembled and installed on site. Compared with traditional on-site cast-in-place concrete stairs, prefabricated building stairs have the advantages of fast construction speed, controllable quality, environmental protection and energy saving.

[0003] When installing existing prefabricated stairs, a bolt rod is generally fixed at a designated installation position of the main body of the building, a round hole is opened on the prefabricated staircase, the bolt rod is aligned with the round hole during installation, the stairs and the bolt rod are fixed with nuts, and then the bolts and nuts are cast with cement slurry. In order to facilitate the passage of the bolt rod through the round hole, the diameter of the round hole is generally larger than the diameter of the bolt rod. After installation, there is a large gap between the bolt rod and the round hole. A large amount of cement slurry is required to fill the gap during casting. When there is too much cement slurry, it is easy to cause the cement slurry to solidify slowly, resulting in low assembly efficiency of the stairs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fixing device for the stair column of an assembled building, which has the advantage of high transfer efficiency and solves the problem that the existing assembled stairs are generally installed by fixing a bolt rod at a designated installation position of the building body, opening a round hole on the stair prefabricated part, aligning the bolt rod with the round hole during installation, and then fixing the stairs and the bolt rod with nuts, and then pouring the bolt and the nut with cement slurry. In order to facilitate the passage of the bolt rod through the round hole, the diameter of the round hole is generally larger than the diameter of the bolt rod. After installation, a large gap exists between the bolt rod and the round hole. During pouring, a large amount of cement slurry is needed to fill the gap. When there is more cement slurry, it is easy to cause the cement slurry to solidify slowly, resulting in low assembly efficiency of the stairs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated building stair column fixing device, comprising a fixing plug, a fixing base plate embedded in the building body and a fixing column embedded in the prefabricated staircase, wherein a staircase fixing mechanism is provided between the fixing base plate, the fixing column and the fixing plug;

[0006] The stair fixing mechanism includes a fixing sleeve and a threaded rod fixedly installed on the upper surface of the fixing base plate, a fixing groove connected to the upper surface of the fixing column is opened inside the fixing column, a circular hole connected to the lower surface of the fixing column is opened on the inner surface of the fixing groove, a threaded barrel is fixedly installed inside the fixing plug, a nut extending to the upper surface of the fixing plug is fixedly installed on the top of the threaded barrel, and a casting vertical hole and a casting horizontal hole are opened inside the fixing plug.

[0007] Furthermore, an anti-slip ring plate is fixedly mounted on the side surface of the fixing column, and stabilizing rods are fixedly mounted on the upper and lower surfaces of the anti-slip ring plate.

[0008] Furthermore, the inner shape of the fixing groove is matched with the outer shape of the fixing plug, the inner shape of the fixing groove and the outer shape of the fixing plug are both conical, and the maximum diameter inside the fixing groove is greater than the maximum diameter outside the fixing plug.

[0009] Furthermore, the diameter of the circular hole is larger than the diameter of the threaded rod, and the external shape and size of the threaded rod are matched with the internal shape and size of the threaded barrel.

[0010] Furthermore, the internal cross-sectional shape of the fixing sleeve and the cross-sectional shape of the fixing column are both circular, and the internal diameter of the fixing sleeve matches the external diameter of the fixing column.

[0011] Furthermore, the vertical casting hole is connected to the upper surface of the fixing plug, and the horizontal casting hole is connected to the vertical casting hole. The number of the vertical casting holes and the horizontal casting holes are both multiple.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The prefabricated building stair column fixing device is provided with a threaded rod and a fixing sleeve on a fixing bottom plate, a fixing groove on the fixing column, and a threaded tube, a casting vertical hole and a casting horizontal hole on the fixing plug. When in use, the fixing sleeve can be used to clamp the fixing columns together, so that the connection between the building body and the prefabricated staircase is more stable, the threaded rod and the threaded tube can be used to fix the fixing plug in the fixing groove, and the fixing groove is filled with the fixing plug. The conical structure of the fixing plug and the fixing groove can reduce the gap in the fixing groove, thereby reducing the pouring amount of cement slurry, facilitating the acceleration of the solidification speed of the cement slurry, and improving the fixation of the prefabricated staircase. The improvement of installation efficiency solves the problem that the existing assembled stairs are generally installed by fixing a bolt rod at the designated installation position of the building body, opening a round hole on the stair prefabricated part, aligning the bolt rod with the round hole during installation, fixing the stairs and the bolt rod with nuts, and then pouring the bolts and nuts with cement slurry. In order to facilitate the passage of the bolt rod through the round hole, the diameter of the round hole is generally larger than the diameter of the bolt rod. After installation, there is a large gap between the bolt rod and the round hole. A large amount of cement slurry is needed to fill the gap during pouring. When there is too much cement slurry, it is easy to cause the cement slurry to solidify slowly, resulting in low assembly efficiency of the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection between the fixed base plate and the fixed column of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structural fixing column of the utility model;

[0016] Figure 3 This is a schematic diagram of a fixed bottom plate of the utility model structure;

[0017] Figure 4 This is a schematic diagram of the structural fixing plug of the utility model.

[0018] In the figure: 1. Fixed base plate; 2. Fixed column; 3. Fixed plug; 4. Fixed sleeve; 5. Threaded rod; 6. Fixed groove; 7. Round hole; 8. Threaded tube; 9. Nut; 10. Casting vertical hole; 11. Casting horizontal hole; 12. Anti-slip ring plate; 13. Stabilizing rod. 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 1-4 In the present embodiment, a prefabricated building stair column fixing device comprises a fixing plug 3, a fixing base plate 1 embedded in the main body of the building and a fixing column 2 embedded in the prefabricated staircase. An anti-slip annular plate 12 is fixedly installed on the side surface of the fixing column 2. A stabilizing rod 13 is fixedly installed on the upper and lower surfaces of the anti-slip annular plate 12. The anti-slip annular plate 12 and the stabilizing rod 13 can improve the connection stability between the fixing column 2 and the prefabricated staircase, which is beneficial to prevent the fixing column 2 from detaching from the inside of the prefabricated staircase. A staircase fixing mechanism is provided between the fixing base plate 1, the fixing column 2 and the fixing plug 3. The staircase fixing mechanism comprises a fixing sleeve 4 and a threaded rod 5 fixedly installed on the upper surface of the fixing base plate 1. The internal cross-sectional shape of the fixing sleeve 4 is circular, and the internal diameter of the fixing sleeve 4 is adapted to the external diameter of the fixing column 2, so that the fixing column 2 can be easily inserted into the fixing sleeve 4. The fixing column 2 has an internal opening There is a fixing groove 6 connected to the upper surface of the fixing column 2, the internal shape of the fixing groove 6 is adapted to the external shape of the fixing plug 3, the internal shape of the fixing groove 6 and the external shape of the fixing plug 3 are both conical, the maximum diameter inside the fixing groove 6 is larger than the maximum diameter outside the fixing plug 3, a circular hole 7 connected to the lower surface of the fixing column 2 is opened on the inner cavity surface of the fixing groove 6, a threaded barrel 8 is fixedly installed inside the fixing plug 3, the diameter of the circular hole 7 is larger than the diameter of the threaded rod 5, the external shape and size of the threaded rod 5 are adapted to the internal shape and size of the threaded barrel 8, so as to facilitate the threaded connection of the threaded barrel 8 to the threaded rod 5, a nut 9 extending to the upper surface of the fixing plug 3 is fixedly installed on the top of the threaded barrel 8, a casting vertical hole 10 and a casting horizontal hole 11 are opened inside the fixing plug 3, the casting vertical hole 10 is connected to the upper surface of the fixing plug 3, the casting horizontal hole 11 is connected to the casting vertical hole 10, and the number of the casting vertical hole 10 and the casting horizontal hole 11 are both multiple.

[0021] It should be noted that the fixed base plate 1, the fixed column 2, the fixed sleeve 4, the threaded rod 5, the threaded tube 8, the nut 9, the anti-dropping annular plate 12 and the stabilizing rod 13 in this embodiment are all made of metal materials.

[0022] It should be noted that the fixing plug 3 in this embodiment is a prefabricated concrete component.

[0023] The working principle of the above embodiment is:

[0024] When in use, the fixed base plate 1 is fixed to the designated position of the building body for installing the prefabricated stairs, so that the top of the fixing sleeve 4 is flush with the installation surface, and the fixing column 2 is installed inside the prefabricated building, so that the top surface of the fixing column 2 is flush with the installation surface of the prefabricated building, and the bottom of the fixing column 2 protrudes from the surface of the prefabricated building. During installation, the bottom of the fixing column 2 is first inserted into the fixing sleeve 4, and the threaded rod 5 is inserted into the fixing groove 6 through the round hole 7, and then the fixing plug 3 is placed in the fixing groove 6, so that the threaded tube 8 is aligned with the threaded rod 5, and the threaded tube 8 is threadedly connected to the threaded rod 5 by means of a tool and a nut 9, until the bottom of the fixing plug 3 contacts the bottom of the inner cavity of the fixing groove 6, at this time, the top surface of the fixing plug 3 is lower than the top surface of the fixing column 2, and then cement slurry is injected into the fixing groove 6, and the cement slurry flows to the gap between the fixing plug 3 and the fixing groove 6 through the casting vertical hole 10 and the casting horizontal hole 11, thereby completing the installation of the prefabricated stairs.

[0025] 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.

[0026] 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 fixing device for staircase columns in an assembled building, comprising a fixing plug (3), a fixing base plate (1) embedded in the main body of the building, and a fixing column (2) embedded in the prefabricated staircase, characterized in that: A staircase fixing mechanism is provided between the fixing base plate (1), the fixing column (2) and the fixing plug (3); The staircase fixing mechanism comprises a fixing sleeve (4) and a threaded rod (5) fixedly mounted on the upper surface of a fixing base plate (1); a fixing groove (6) communicating with the upper surface of the fixing column (2) is provided inside the fixing column (2); a circular hole (7) communicating with the lower surface of the fixing column (2) is provided on the inner surface of the fixing groove (6); a threaded cylinder (8) is fixedly mounted inside the fixing plug (3); a nut (9) extending to the upper surface of the fixing plug (3) is fixedly mounted on the top of the threaded cylinder (8); and a casting vertical hole (10) and a casting horizontal hole (11) are provided inside the fixing plug (3).

2. The assembly type building stair column fixing device according to claim 1 is characterized in that: An anti-slip annular plate (12) is fixedly mounted on the side surface of the fixed column (2), and a stabilizing rod (13) is fixedly mounted on the upper and lower surfaces of the anti-slip annular plate (12).

3. The assembly type building stair column fixing device according to claim 1 is characterized in that: The internal shape of the fixing groove (6) is compatible with the external shape of the fixing plug (3); both the internal shape of the fixing groove (6) and the external shape of the fixing plug (3) are conical; and the maximum diameter inside the fixing groove (6) is greater than the maximum diameter outside the fixing plug (3).

4. The assembly type building stair column fixing device according to claim 1 is characterized in that: The diameter of the circular hole (7) is greater than the diameter of the threaded rod (5), and the external shape and size of the threaded rod (5) are compatible with the internal shape and size of the threaded barrel (8).

5. The assembly type building stair column fixing device according to claim 1 is characterized in that: The internal cross-sectional shape of the fixing sleeve (4) and the cross-sectional shape of the fixing column (2) are both circular, and the internal diameter of the fixing sleeve (4) matches the external diameter of the fixing column (2).

6. The assembly type building stair column fixing device according to claim 1 is characterized in that: The vertical casting hole (10) is connected to the upper surface of the fixing plug (3), and the horizontal casting hole (11) is connected to the vertical casting hole (10). The number of the vertical casting holes (10) and the horizontal casting holes (11) are both multiple.

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