Cavity wall connecting joint structure

By setting extension ends and prefabricated connectors on the sides of the cavity module, a cross-shaped rib cage structure is formed, which solves the problem of insufficient strength of the modular cavity wall, improves the structural strength, and simplifies the construction steps.

CN224002156UActive Publication Date: 2026-03-17CCCC FOURTH HIGHWAY ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Modular cavity walls lack sufficient strength in unreinforced cage systems, leading to cumbersome construction procedures.

Method used

An extension end is provided on the side of the cavity module to form a semi-circular opening to constitute a prefabricated cavity area. Prefabricated ribs and connectors form a crisscrossing rib cage structure to connect the pre-laid layer and the inner wall panel.

Benefits of technology

It improves the overall structural strength of the cavity wall, simplifies the construction process, and enhances the flexibility and coordination of assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cavity wall connecting structures, in particular to a cavity wall connecting node structure, which solves the technical problem that the strength of modular cavity walls in the prior art is weak after the modular cavity walls are combined, and comprises a plurality of cavity modules which can be arranged in rows or columns to form a cavity wall surface; when the cavity modules are arranged in rows, the adjacent extending ends abut against each other to form a pouring area, and the corresponding first semicircular openings form a first prefabricated pipe cavity area. When the cavity modules are arranged in rows, the adjacent second semicircular openings form a second prefabricated pipe cavity area; ribs can be prefabricated in the second prefabricated pipe cavity area; connecting pieces can be prefabricated in the first prefabricated pipe cavity area, and the prefabricated connecting pieces are used for connecting the pre-laying layer and the inner wall plate. According to the technical scheme, the prefabricated ribs and the prefabricated connecting pieces which are staggered transversely and longitudinally are provided in the arrangement in rows and columns, and the prefabricated connecting pieces can be connected with the pre-laid layer and the inner wall plate, so that a stable supporting system similar to a rib cage is integrally formed, and the structural strength is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of cavity wall connection structure, and in particular to a cavity wall connection node structure. Background Technology

[0002] In the current approach, continuous cavity wall configuration has excellent thermal insulation and sound insulation performance, and has significant advantages in terms of lightweighting and prefabrication. The use of cavity wall isolation configuration in the building can effectively shorten the actual construction cycle. In other words, from the production end to the construction end and then to the application end, cavity wall is a better choice.

[0003] In existing technologies, prefabricated cavity walls are mainly available in two specifications: monolithic and modular. Monolithic walls are faster to assemble, but have poorer assembly flexibility and coordination. Modular prefabricated cavity walls, on the other hand, are mostly assembled using metal tie rods and precast reinforcement assemblies, followed by a series of construction processes such as grouting at the joints, and are configured in conjunction with other composite layers or external wall foundations. Therefore, the problem with modular cavity walls is that their own strength is insufficient due to the lack of a reinforcement cage system, requiring the use of auxiliary connectors, which leads to cumbersome construction steps. Utility Model Content

[0004] This invention aims to solve the technical problem of weak strength in the modular cavity wall assembly in the prior art, and provides a cavity wall connection node structure.

[0005] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0006] A cavity wall connection node structure, comprising:

[0007] Multiple cavity modules can be arranged in rows or columns to form a cavity wall;

[0008] The cavity module has two parallel extended ends on its side, and a first semi-circular opening is formed at the center of each extended end.

[0009] When the cavity modules are arranged in a row, adjacent extension ends abut to form an injection area, and the corresponding first semi-circular opening forms a first prefabricated cavity area.

[0010] The upper and lower ends of the extension end are formed with a second semi-circular opening, which can connect to the stacking surface of the adjacent cavity module.

[0011] When the cavity modules are arranged in a row, adjacent second semi-circular openings form a second prefabricated cavity area;

[0012] The second precast cavity area can be precast with reinforcing bars;

[0013] The first prefabricated cavity area can be prefabricated with connectors, which are used to connect the pre-laid layer and the inner wall panel.

[0014] Preferably, each cavity module has an inner cavity that extends through the stacking surface.

[0015] Preferably, the cavity module has extension ends on both sides.

[0016] Preferably, the cavity module has an extension end on one side.

[0017] Preferably, the cavity module is arranged between the pre-laid layer and the inner wall panel, and the outer wall layer is laid on the side of the pre-laid layer away from the inner wall panel.

[0018] Preferably, the precast reinforcing bars can be segmented, and adjacent precast reinforcing bars are connected by spot welding;

[0019] When arranged in a row, the cavity modules that are adjacent to each other on the upper and lower sides are plastered with masonry mortar.

[0020] Preferably, the prefabricated connector includes:

[0021] The prefabricated main tube is arranged on the first semi-circular opening, and an anchoring end is provided at one end.

[0022] The anchoring end is anchored within the pre-laid layer.

[0023] Preferably, it further includes: a threaded fastening end;

[0024] The threaded fastening end is located at the end of the precast main tube away from the anchoring end;

[0025] The threaded fastening end passes through a through hole configured on the inner wall panel;

[0026] The through hole connects to a limiting hole with a diameter larger than the through hole, and the threaded fastening end is partially exposed in the limiting hole so that a locking cap can be screwed onto the threaded fastening end;

[0027] The lock cap includes:

[0028] The threaded hole is used for screwing the threaded fastening end; and

[0029] The lock cap has an integrally formed internal hexagonal portion, which has an internal hexagonal hole.

[0030] This utility model has the following beneficial effects:

[0031] This technical solution provides interlaced precast ribs and precast connectors in row and column arrangements. The precast connectors can also connect the pre-laid layer and the inner wall panel, so that the whole forms a stable support system similar to a rib cage, which greatly improves the structural strength. Attached Figure Description

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] Figure 1 This is a schematic diagram of the arrangement of multiple cavity modules of this utility model;

[0034] Figure 2 This is a schematic diagram of the nodes arranged in rows for the cavity modules of this utility model;

[0035] Figure 3 A partially enlarged view of the anchoring end configuration of this utility model;

[0036] Figure 4 A partially enlarged view of the threaded fastening end configuration of this utility model;

[0037] Figure 5 This is one embodiment of the cavity module of this utility model;

[0038] Figure 6 This is a schematic diagram of the interface arrangement of multiple cavity modules of this utility model.

[0039] The reference numerals in the figure are:

[0040] Cavity module 10, cavity wall 1, extension end 101;

[0041] First semi-circular opening 110, injection area 102, first prefabricated cavity area 111;

[0042] Second semi-circular opening 120, stacked surface 2, second prefabricated cavity area 222;

[0043] 30 reinforcing bars, 40 prefabricated connectors, 3 pre-laid layers, and 4 interior wall panels;

[0044] Internal cavity 1001, outer wall 5;

[0045] Precast main pipe 41, anchoring end 42, threaded fastening end 43;

[0046] Through hole 401, limiting hole 402, lock cap 44;

[0047] Threaded hole portion 441, internal hexagonal portion 442. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. It should be noted that, for ease of description, in this application, "left side" is referred to as "first end", "right side" as "second end", "upper side" as "first end", and "lower side" as "second end" in the current view. The purpose of such description is to clearly express the technical solution and should not be construed as an improper limitation of the technical solution of this application.

[0049] This invention aims to address the technical problem of inherent weakness in the strength of modular cavity wall assemblies in existing technologies. It provides a cavity wall connection node structure. This weakness primarily manifests as insufficient strength in the absence of a reinforcing cage. Therefore, the improvement in this technical solution lies in configuring a strength configuration similar to reinforcing bars at the node positions of the modular cavity walls. For specific technical solutions, please refer to the appendix. Figure 1 , 2 As shown in Figure 6, it includes: multiple cavity modules 10, which can be arranged in rows or columns to form a cavity wall 1 to form a main body; the side of the cavity module 10 is provided with two parallel extended ends 101, and the center of the extended end 101 forms a first semi-circular opening 110.

[0050] When the cavity modules 10 are arranged in a row, adjacent extension ends 101 abut to form a grouting area 102, and the corresponding first semi-circular openings 110 form a first prefabricated cavity area 111; the upper and lower ends of the extension ends 101 form second semi-circular openings 120, which can connect to the stacking surface 2 of adjacent cavity modules 10; when the cavity modules 10 are arranged in a column, adjacent second semi-circular openings 120 form a second prefabricated cavity area 222; the second prefabricated cavity area 222 can prefabricate reinforcing bars 30; the first prefabricated cavity area 111 can prefabricate connectors 40, which are used to connect the pre-laid layer 3 and the inner wall panel 4;

[0051] With the above configuration, this technical solution provides interlaced precast reinforcing bars 30 and precast connectors 40 in row and column arrangements. The precast connectors 40 can also connect the pre-laid layer 3 and the inner wall panel 4, so that the whole forms a stable support system similar to a reinforcing cage, which greatly improves the structural strength.

[0052] In one specific embodiment, please refer to Figure 1 , 2As shown in Figures 5 and 6, each cavity module 10 has an inner cavity 1001, which penetrates the stacking surface 2. Optionally, each cavity module 10 can be configured with multiple inner cavities 1001.

[0053] In one embodiment, the cavity module 10 is in the middle position; please refer to [link / reference]. Figure 1 As shown; both sides of the cavity module 10 are provided with extension ends 101.

[0054] In another embodiment, as for the arrangement of the edges, please refer to... Figure 5 As shown, an extension end 101 is provided on one side of the cavity module 10.

[0055] In one specific embodiment, please refer to Figure 1 As shown, the cavity module 10 is arranged between the pre-laid layer 3 and the inner wall panel 4, and the outer wall 5 is laid on the side of the pre-laid layer 3 away from the inner wall panel 4.

[0056] First, the precast reinforcing bars 30 can be set in sections, using cylindrical reinforcing bars, and the length can be arbitrarily configured and cut. Adjacent precast reinforcing bars 30 are connected by spot welding. When arranged in rows, the upper and lower adjacent cavity modules 10 are plastered with masonry mortar to achieve stability in the longitudinal direction.

[0057] In one specific embodiment, please refer to Figure 2 , 3 As shown in Figure 4, the prefabricated connector 40 includes: a prefabricated main tube 41, which is arranged on the first semi-circular opening 110, and an anchoring end 42 is provided at one end; the anchoring end 42 is anchored in the pre-laid layer 3. It also includes: a threaded fastening end 43; the threaded fastening end 43 is provided at the end of the prefabricated main tube 41 away from the anchoring end 42; the threaded fastening end 43 passes through a through hole 401 provided on the inner wall panel 4; the through hole 401 is connected to a limiting hole 402 with a diameter larger than the through hole 401, and part of the threaded fastening end 43 is exposed in the limiting hole 402 so that a locking cap 44 can be screwed onto the threaded fastening end 43, so as to achieve stability in the thickness direction, that is, in the lateral direction.

[0058] In one specific embodiment, please refer to Figure 3 , 4 As shown, the lock cap 44 includes: a threaded hole portion 441 for threading the threaded fastening end 43; and an internal hexagonal portion 442 integrally formed with the lock cap 44, the internal hexagonal portion 442 having an internal hexagonal hole;

[0059] Anchoring can be achieved first, and the stability of the inner wall panel 4 can be ensured by the cooperation of the locking cap 44 and the limiting hole 402.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A cavity wall connection node structure, characterised in that, The utility model relates to a cavity module (10) for a cavity wall (1), comprising: a plurality of cavity modules (10) capable of being arranged in rows or columns to form a cavity wall (1); the side of the cavity module (10) is provided with two parallel arranged extension ends (101), the center of the extension end (101) is formed with a first semicircular port (110); when the cavity module (10) is arranged in rows, the adjacent extension ends (101) abut to form a pouring area (102), and the corresponding first semicircular port (110) forms a first prefabricated pipe cavity area (111); the upper and lower ends of the extension end (101) are formed with a second semicircular port (120), and the second semicircular port (120) can communicate the stacking surface (2) of the adjacent cavity module (10); when the cavity module (10) is arranged in columns, the adjacent second semicircular ports (120) form a second prefabricated pipe cavity area (222); the second prefabricated pipe cavity area (222) can prefabricate a reinforcing bar (30); the first prefabricated pipe cavity area (111) can prefabricate a connecting piece (40), and the prefabricated connecting piece (40) is used for connecting a pre-paved layer (3) and an inner wall panel (4).

2. The cavity wall connection node structure of claim 1, wherein, Each cavity module (10) has an inner cavity (1001) that penetrates the stacking surface (2).

3. The cavity wall connection node structure of claim 2, wherein, Both sides of the cavity module (10) are provided with the extension end (101).

4. The cavity wall connection node structure of claim 2, wherein, One side of the cavity module (10) is provided with the extension end (101).

5. The cavity wall connection node structure of claim 2, wherein, The cavity module (10) is arranged between the pre-paved layer (3) and the inner wall panel (4), and an outer wall (5) is paved on the side of the pre-paved layer (3) away from the inner wall panel (4).

6. The cavity wall connection node structure of claim 5, wherein, The prefabricated reinforcing bar (30) can be arranged in segments, and adjacent prefabricated reinforcing bars (30) are connected by spot welding; when arranged in columns, the upper and lower adjacent cavity modules (10) are faced with masonry mortar.

7. The cavity wall connection node structure of claim 5, wherein The prefabricated connecting piece (40) comprises: a prefabricated main pipe (41) arranged on the first semicircular port (110), one end of which is provided with an anchoring end (42); the anchoring end (42) is anchored in the pre-paved layer (3).

8. The cavity wall connection node structure of claim 7, wherein, Further comprising a threaded fastening end (43); the threaded fastening end (43) is arranged at the end of the prefabricated main pipe (41) away from the anchoring end (42); the threaded fastening end (43) passes through a through hole (401) arranged on the inner wall panel (4); the through hole (401) communicates with a limiting hole (402) with a larger diameter than the through hole (401), and the threaded fastening end (43) partially protrudes in the limiting hole (402), so that a lock cap (44) can be screwed on the threaded fastening end (43); the lock cap (44) comprises: a threaded hole portion (441) for screwing the threaded fastening end (43); and an internal hexagonal portion (442) integrally formed with the lock cap (44), the internal hexagonal portion (442) has an internal hexagonal hole.