Prefabricated cavity column and assembly type column body

By designing the precast hollow column as a split structure and using reinforcing bars and connectors to achieve stable fixation, the problem of inconvenient transportation and storage of precast hollow columns is solved, realizing convenient transportation and improving connection stability.

CN224134061UActive Publication Date: 2026-04-17FUJIAN MEIYI PREFABRICATED COMPONENTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN MEIYI PREFABRICATED COMPONENTS CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing precast hollow columns occupy a large area during production, are inconvenient to transport, and require a large storage space, leading to transportation difficulties.

Method used

The precast hollow column is designed as a split structure, connected by reinforcing bars. The base of the precast hollow column is stably fixed to the side plate using connectors, mounting screws and nuts, and connected by pouring concrete when necessary.

Benefits of technology

This technology enables the modular assembly of prefabricated hollow columns, reducing their volume, facilitating transportation and storage, and improving connection stability and overall strength.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224134061U_ABST
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Abstract

The utility model relates to the technical field of assembly type column bodies, and provides a prefabricated cavity column and an assembly type column body, the prefabricated cavity column comprises a prefabricated cavity column base and four cavity column side plates arranged on the upper side of the prefabricated cavity column base, a plurality of reinforcing ribs are arranged on the prefabricated cavity column base, and the reinforcing ribs are located among the four cavity column side plates. A connecting piece is arranged between the cavity column side plate and the prefabricated cavity column base; the connecting piece comprises a plurality of connecting nuts fixedly connected to the upper end of the prefabricated cavity column base, a mounting groove and a connecting groove are formed in the upper end and the lower end of the cavity column side plate correspondingly, a plurality of mounting screws are arranged in the mounting groove, and after the mounting screws are inserted into the cavity column side plate and rotated into the connecting nuts, the mounting screws are connected with the connecting nuts. The prefabricated hollow column base and the cavity column side plates are fixed, assembling and limiting are facilitated, shaking during pouring is prevented, the prefabricated hollow column is arranged to be in a split type, connection is conducted through the mounting screws, and transportation and storage are facilitated.
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Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated columns, and in particular to a prefabricated hollow column and a prefabricated column. Background Technology

[0002] Prefabricated columns refer to column structures that are prefabricated in a factory and then assembled on the construction site using connectors or grouting. Prefabricated hollow columns are a type of prefabricated column, which can reduce the overall weight of the main body, facilitate transportation, and also make it easy to assemble with other prefabricated components.

[0003] CN220928432U discloses a spatial fixing design for precast hollow columns. It mainly provides a retention device suitable for the reinforcing bars of precast hollow columns. This retention device includes two or more retention base plates, a positioning device for connecting the retention base plates to each other, and a retention sleeve fitted onto the reinforcing bar. Each retention base plate includes a retention hole for the reinforcing bar to pass through, and the retention sleeve is used to abut against the retention base plate to axially limit the reinforcing bar. This invention can provide a stable retention effect when the precast hollow column has long pre-reserved connecting reinforcing bars, avoiding rebar displacement caused by flowing concrete and potential impacts, thereby ensuring precise docking and installation with other precast hollow columns.

[0004] However, when precast hollow columns are produced, the steel bars, the base of the precast hollow column, and the side plates of the hollow column are usually directly cast into a whole. Precast hollow columns occupy a large area, and their large size makes them inconvenient to transport to the construction site. They also take up a lot of space when stored, making them inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated hollow column and an assembled column, which has the effect of setting the prefabricated hollow column as a split type and connecting it together by reinforcing bars, thereby reducing the volume and facilitating storage and transportation.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A precast hollow column and an assembled column include a precast hollow column base and four hollow column side plates disposed on its upper side. The precast hollow column base is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are evenly laid along the inner perimeter of the four hollow column side plates. A connecting member is provided between the hollow column side plates and the precast hollow column base.

[0008] The connector includes several connecting nuts that are fixedly connected to the upper end of the precast hollow column base. The upper and lower ends of the hollow column side plate are respectively provided with an installation groove and a connecting groove. Several installation screws are provided in the installation groove, and the installation screws movably pass through the inner top wall of the connecting groove and are threadedly connected to the connecting nuts.

[0009] In a preferred embodiment, the present invention can be further configured such that: a rectangular groove is provided at the upper end of the prefabricated hollow column base, and a mounting seat is provided on the inner bottom wall of the rectangular groove, and the reinforcing rib is provided at the upper end of the mounting seat.

[0010] In a preferred embodiment, the present invention can be further configured such that: a plurality of limiting screws are fixedly connected to the upper end of the mounting base, and the reinforcing rib is threadedly connected to the circumferential side of the limiting screws.

[0011] In a preferred embodiment, the present invention can be further configured such that: each of the reinforcing ribs is fixedly connected to a wire-threading limiting frame on its circumferential side, and a plurality of cross-shaped connecting ribs are provided above the mounting base.

[0012] In a preferred embodiment, the present invention can be further configured such that: each of the four ends of the cross-shaped connecting rib is provided with a threaded groove, a connecting screw is threadedly connected in the threaded groove, a connecting frame is provided on one side of the connecting screw, and the connecting frame is fixedly connected to the circumferential side of the reinforcing rib, and the connecting screw is threaded through one side wall of the connecting frame.

[0013] In a preferred embodiment, the present invention can be further configured such that: a lifting plate is fixedly connected to the center of the circumferential side of the cross connecting rib, and a lifting lug is fixedly connected to the upper end of the uppermost lifting plate.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. The system includes a precast hollow column base, hollow column side plates, mounting screws, connecting nuts, and connecting grooves. When assembling the hollow column side plates and the precast hollow column base, the hollow column side plates are placed on the upper side of the precast hollow column base, with the four hollow column side plates forming a hollow rectangle. To limit the position of the hollow column side plates and the precast hollow column base, the mounting screws are inserted into the hollow column side plates and rotated into the connecting nuts to fix the precast hollow column base and the hollow column side plates. This facilitates assembly and positioning, prevents shaking during pouring, and allows the precast hollow column to be designed as a split type, connected by mounting screws for easy transportation and storage.

[0016] 2. It is equipped with a mounting base, a rectangular groove, reinforcing ribs, and limiting screws. When installing the reinforcing ribs, the limiting screws are used to connect with the lower thread of the reinforcing ribs to fix them. The installed assembly is placed in the precast hollow column base through the mounting base and the rectangular groove. The connection between the mounting base and the precast hollow column base is made by casting the mounting base, which can facilitate the reinforcement of the precast hollow column base and improve the connection stability between the precast hollow column base and other assemblies. Attached Figure Description

[0017] Figure 1 This is a perspective view of this embodiment;

[0018] Figure 2 This is the first perspective sectional view of this embodiment;

[0019] Figure 3 This is the embodiment. Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is the second perspective sectional view of this embodiment;

[0021] Figure 5 This is the embodiment. Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 This is the third perspective sectional view of this embodiment;

[0023] Figure 7 This is the embodiment. Figure 6 Enlarged view of point C in the middle.

[0024] In the diagram, 1. Precast hollow column base; 2. Hollow column side plate; 3. Mounting groove; 4. Mounting screw; 6. Reinforcing rib; 7. Cross connecting rib; 8. Threaded groove; 9. Connecting screw; 10. Connecting frame; 11. Threaded limit frame; 12. Limiting screw; 13. Mounting seat; 14. Rectangular groove; 15. Connecting groove; 16. Connecting nut; 17. Lifting plate; 18. Lifting lug. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1-7 The present invention discloses a precast hollow column and an assembled column, including a precast hollow column base 1 and four hollow column side plates 2 disposed on its upper side. The precast hollow column base 1 is provided with a number of reinforcing ribs 6, and the multiple reinforcing ribs 6 are evenly laid along the inner perimeter direction of the four hollow column side plates 2. A connecting member is provided between the hollow column side plates 2 and the precast hollow column base 1.

[0028] The connector includes several connecting nuts 16 that are fixedly connected to the upper end of the precast hollow column base 1. The upper and lower ends of the hollow column side plate 2 are respectively provided with mounting grooves 3 and connecting grooves 15. Several mounting screws 4 are provided in the mounting groove 3, and the mounting screws 4 movably pass through the inner top wall of the connecting groove 15 and are threadedly connected to the connecting nuts 16.

[0029] In this embodiment, reference Figures 1 to 3 The position of the hollow column side plate 2: The hollow column side plate 2 is set at the upper edge of the precast hollow column base 1. The side of the hollow column side plate 2 and the side of the precast hollow column base 1 form a rectangular cavity, which constitutes a hollow column.

[0030] refer to Figure 3 The connecting groove 15 is located at the lower center of the cavity column side plate 2, and the depth of the connecting groove 15 is the same as or greater than the height of the connecting nut 16. When installing the cavity column side plate 2, the cavity column side plate 2 is fitted onto the surface of the connecting nut 16 through the connecting groove 15. A channel for the installation screw 4 to pass through is provided in the cavity column side plate 2, and the installation screw 4 is slidably connected in the channel.

[0031] Therefore, the specific installation method of the precast hollow column base 1 and the hollow column side plate 2 is as follows: place the hollow column side plate 2 on the upper end of the precast hollow column base 1, and after placing the connecting nut 16 in the connecting groove 15, insert the mounting screw 4 into the hollow column side plate 2 from the mounting groove 3 at the upper part of the hollow column side plate 2. After the lower end of the mounting screw 4 is inserted into the connecting nut 16, rotate the mounting screw 4 to connect the mounting screw 4 with the connecting nut 16. This can fix the precast hollow column base 1 and the hollow column side plate 2, improve the connection stability between the precast hollow column base 1 and the hollow column side plate 2, prevent shaking during assembly or pouring, and set the precast hollow column as a split type. It is connected by the mounting screw 4, which is convenient for transportation and storage.

[0032] Preferably, although not shown in the figure, the bottom of the circumferential side of the connecting nut 16 can fix the connecting plate. The connecting plate is located inside the precast hollow column base 1 and is integrally formed by casting during the production of the precast hollow column base 1. When this product is used alone, there will be a gap at the connection between the precast hollow column base 1 and the hollow column side plate 2. In order to improve the tightness between the precast hollow column base 1 and the hollow column side plate 2, concrete can be applied to the surface of the precast hollow column base 1 and the hollow column side plate 2 or to the connection gap.

[0033] For further details, please refer to Figure 4 and Figure 5 The upper end of the precast hollow column base 1 is provided with a rectangular groove 14, and the inner bottom wall of the rectangular groove 14 is provided with a mounting seat 13, and the reinforcing rib 6 is provided at the upper end of the mounting seat 13.

[0034] In this embodiment, when the prefabricated hollow column is in use, if it is necessary to improve the overall strength of the hollow body, the inside of the hollow column needs to be poured, or when the hollow column is assembled with other assemblies, cement can be laid in the rectangular groove 14, and the mounting base 13 can be placed in the rectangular groove 14 to achieve the connection between the mounting base 13 and the prefabricated hollow column base 1.

[0035] For further details, please refer to Figure 5 and Figure 6 The upper end of the mounting base 13 is fixedly connected with several limiting screws 12, and the reinforcing ribs 6 are threaded to the circumferential side of the limiting screws 12.

[0036] In this embodiment, reference Figure 6 The limiting screw 12 is fixed to the upper end of the mounting base 13, and the limiting screw 12 is fixed around the edge of the mounting base 13. Regarding the fixing method of the limiting screw 12 and the mounting base 13, you can refer to the connection method of the connecting nut 16 and the prefabricated hollow column base 1.

[0037] refer to Figure 5 The lower end of the reinforcing rib 6 is provided with a groove that matches the limiting screw 12. The connection between the reinforcing rib 6 and the limiting screw 12 is as follows: the lower end of the reinforcing rib 6 is placed above the limiting screw 12, and the reinforcing rib 6 is rotated so that the reinforcing rib 6 and the limiting screw 12 are threadedly fixed, thereby fixing the position of the reinforcing rib 6.

[0038] Preferably, when connecting the precast hollow column base 1 to the external assembly, the assembly can be placed at the upper center of the mounting base 13, and other assemblies can be connected to the reinforcing ribs 6 and the mounting base 13 by casting between the reinforcing ribs 6.

[0039] For further details, please refer to Figure 6 and Figure 7 Several reinforcing ribs 6 are fixedly connected to wire threading limit frames 11 on their circumferential sides, and several cross-shaped connecting ribs 7 are provided above the mounting base 13.

[0040] In this embodiment, reference Figure 6 and Figure 7 The wire threading limit frame 11 is provided in multiple sets. Each set includes multiple wire threading limit frames 11 fixed on the circumferential side of the reinforcing bar 6. They are on the same horizontal plane.

[0041] In practical use, the wire threading limiting frame 11 can be used to wrap the reinforcing wire around the surface of multiple reinforcing bars 6, pass through the wire threading limiting frame 11 and fix it to the reinforcing bars 6. Threading can improve the connection with concrete during pouring.

[0042] For further details, please refer to Figure 6 and Figure 7 The four ends of the cross-shaped connecting rib 7 are provided with threaded grooves 8, and connecting screws 9 are threadedly connected in the threaded grooves 8. A connecting frame 10 is provided on one side of the connecting screw 9, and the connecting frame 10 is fixedly connected to the circumferential side of the reinforcing rib 6. The connecting screw 9 is threaded through one side wall of the connecting frame 10.

[0043] In this embodiment, reference Figure 6 The cross-shaped connecting rib 7 is provided in multiple ways. The number of cross-shaped connecting ribs 7 can be selected according to the needs. The main function of the cross-shaped connecting rib 7 is to reinforce the center of the precast cavity column and improve the overall strength. The connecting frame 10 is provided with four ribs, which are fixed to the circumferential side of the four reinforcing ribs 6 at the center.

[0044] The cross-connecting rib 7 can be selectively installed. When the cross-connecting rib 7 is not needed, it can be disassembled and removed. The specific installation method of the cross-connecting rib 7 is as follows: place the cross-connecting rib 7 between the four connecting frames 10, rotate the connecting screw 9, and the thread of the connecting screw 9 is inserted into the connecting frame 10 and the thread is removed from the thread groove 8, thereby realizing the fixation between the cross-connecting rib 7 and the connecting frame 10 and the reinforcing rib 6.

[0045] For further details, please refer to Figure 1 A lifting plate 17 is fixedly connected to the center of the circumferential side of the cross connecting rib 7, and a lifting lug 18 is fixedly connected to the upper end of the uppermost lifting plate 17.

[0046] In this embodiment, when connecting the mounting base 13 to the prefabricated hollow column base 1, if the weight of the mounting base 13 is large, it can be installed by hoisting, and the hoisting can be carried out by connecting the hoisting lug 18 to the hoisting rope.

[0047] The implementation principle of the above embodiment is as follows: the hollow column side plate 2 is placed on the upper end of the precast hollow column base 1, and the connecting nut 16 is placed in the connecting groove 15. Then, the mounting screw 4 is inserted into the hollow column side plate 2 from the mounting groove 3 at the upper part of the hollow column side plate 2. When the lower end of the mounting screw 4 is inserted into the connecting nut 16, the mounting screw 4 is rotated to connect the mounting screw 4 and the connecting nut 16. This can fix the precast hollow column base 1 and the hollow column side plate 2, improve the connection stability between the precast hollow column base 1 and the hollow column side plate 2, prevent shaking during assembly or pouring, and set the precast hollow column as a split type. It is connected by the mounting screw 4, which facilitates transportation and storage.

[0048] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0049] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated cavity column, a fabricated column body, comprising a prefabricated cavity column base (1) and four cavity column side plates (2) arranged on the upper side of the prefabricated cavity column base (1), characterized in that: The precast hollow column base (1) is provided with a number of reinforcing ribs (6), and the multiple reinforcing ribs (6) are evenly laid along the inner perimeter of the four hollow column side plates (2). A connecting piece is provided between the hollow column side plates (2) and the precast hollow column base (1). The connector includes several connecting nuts (16) fixedly connected to the upper end of the precast hollow column base (1). The upper and lower ends of the hollow column side plate (2) are respectively provided with mounting groove (3) and connecting groove (15). Several mounting screws (4) are provided in the mounting groove (3), and the mounting screws (4) move through the inner top wall of the connecting groove (15) and are threaded into the connecting nuts (16).

2. A precast cavity column, fabricated column according to claim 1, characterized in that: The upper end of the prefabricated hollow column base (1) is provided with a rectangular groove (14), and the inner bottom wall of the rectangular groove (14) is provided with a mounting seat (13), and the reinforcing rib (6) is provided at the upper end of the mounting seat (13).

3. A precast cavity column, fabricated column according to claim 2, characterized in that: The upper end of the mounting base (13) is fixedly connected with several limiting screws (12), and the reinforcing rib (6) is threaded to the circumferential side of the limiting screws (12).

4. A precast cavity column, fabricated column according to claim 2, characterized in that: Several reinforcing ribs (6) are fixedly connected to wire threading limit frames (11) on their circumferential sides, and several cross-shaped connecting ribs (7) are provided above the mounting base (13).

5. A precast cavity column, fabricated column according to claim 4, characterized in that: The four ends of the cross connecting rib (7) are provided with threaded grooves (8), and a connecting screw (9) is threadedly connected in the threaded groove (8). A connecting frame (10) is provided on one side of the connecting screw (9), and the connecting frame (10) is fixedly connected to the circumferential side of the reinforcing rib (6). The connecting screw (9) is threaded through one side wall of the connecting frame (10).

6. A precast cavity column, fabricated column according to claim 4, characterized in that: A lifting plate (17) is fixedly connected to the center of the circumferential side of the cross connecting rib (7), and a lifting lug (18) is fixedly connected to the upper end of the uppermost lifting plate (17).

Citation Information

Patent Citations

  • Retention device suitable for prefabricated cavity column steel bars

    CN220928432U