Prefabricated part of cavity wall

Abstract

The utility model relates to the technical field of prefabricated parts, and discloses a cavity wall prefabricated part which comprises an A-face prefabricated wall body, a B-face prefabricated wall body and a connecting structure for connecting the A-face prefabricated wall body and the B-face prefabricated wall body. A post-pouring area is formed between the A-side prefabricated wall body and the B-side prefabricated wall body; the A-face prefabricated wall body and the B-face prefabricated wall body are fixedly provided with through line and through pipe prefabricated boxes in a prefabricated mode, and the middle portions of the through line and through pipe prefabricated boxes penetrate through the post-pouring area. The through line and through pipe prefabricated box is prefabricated in the prefabricated wall body, so that later pipeline installation can be facilitated, and the trouble of secondary wall chiseling and the risk caused by secondary wall chiseling are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated components, in particular to a cavity wall prefabricated component. Background Art

[0002] The structure of the cavity wall generally includes two precast concrete panels and a cavity formed between the two precast concrete panels, and the two precast concrete panels are connected by steel bars. Among them, the cavity is used for cast-in-place concrete, and the cast-in-place concrete and precast concrete together form a complete wall structure. The cavity wall structure has the advantages of light weight, easy transportation and hoisting. However, the two precast concrete panels of the existing cavity wall are generally set up as entities, and later it is necessary to chisel out the cavity for passing the wires and pipes by chiseling the wall. The secondary chiseling of the wall is troublesome and easily affects the strength of the existing cavity wall. At the same time, in the later hoisting process of the existing cavity wall, it is difficult to align the two adjacent cavity walls, which brings certain difficulties to the assembly. Utility Model Content

[0003] The utility model aims to provide a cavity wall prefabricated component, which can facilitate the installation of pipelines in the later stage by prefabricating a prefabricated box for passing wires and pipes in the prefabricated wall, avoiding the trouble of secondary wall chiseling and the risks caused by secondary wall chiseling; and can facilitate the alignment and connection of the cavity wall in the later stage by arranging a connecting groove and an internal thread connecting sleeve.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A cavity wall prefabricated component comprises an A-side prefabricated wall, a B-side prefabricated wall and a connecting structure connecting the A-side prefabricated wall and the B-side prefabricated wall; a post-casting area is formed between the A-side prefabricated wall and the B-side prefabricated wall; a wire and pipe passing prefabricated box is prefabricated and fixed on the A-side prefabricated wall and the B-side prefabricated wall, and the middle part of the wire and pipe passing prefabricated box passes through the post-casting area; the wire and pipe passing prefabricated box is fixedly connected to the connecting structure by binding.

[0006] The general production process of the cavity wall prefabricated component is to first place a part of the connection structure in the mold of the A-side prefabricated wall, then add concrete into the mold of the A-side prefabricated wall, and after the concrete of the A-side prefabricated wall reaches the strength requirement, turn over the A-side prefabricated wall and place the other part of the connection structure in the mold of the B-side prefabricated wall. At this time, the mold of the B-side prefabricated wall has just been filled with concrete, and then insert the connection structure into the concrete in the mold of the B-side prefabricated wall, and after the concrete in the mold of the B-side prefabricated wall solidifies, the cavity wall prefabricated component is obtained;

[0007] By prefabricating prefabricated boxes for passing cables and pipes in the prefabricated walls on the A side and the B side, the installation of pipelines in the later stage can be facilitated, and the trouble of secondary wall chiseling and the influence of secondary wall chiseling on the wall can be avoided.

[0008] The utility model is further configured as follows: both side ends of the prefabricated wall of the A surface are formed with connecting grooves with outer openings, and the inner ends of the connecting grooves are prefabricated with internal threaded connecting sleeves.

[0009] Through the above technical solution, the inner side and outer side of the cavity wall prefabricated component can be easily distinguished through the connecting groove, and the A-side prefabricated wall with the connecting groove is generally set as the inner wall;

[0010] A connecting plate can be placed in the connecting groove of two adjacent cavity wall prefabricated components, and the connecting plate is fixed to the internal thread connecting sleeve by screws, so that the two adjacent cavity wall prefabricated components can be connected conveniently, and the inner and outer walls of the two cavity wall prefabricated components can be aligned conveniently; after alignment, the pouring work in the later pouring area is convenient.

[0011] The utility model is further configured that: a convex ring is formed on the end of the internal thread connection sleeve extending into the post-casting area.

[0012] Through the above technical solution, the convex ring can play a blocking role to prevent the internal threaded connecting sleeve from being driven axially when tightening the screw.

[0013] The utility model is further configured as follows: a plurality of irregular protrusions and irregular grooves are formed on one side wall of the A-side prefabricated wall and the B-side prefabricated wall facing the rear pouring area, and the irregular protrusions and irregular grooves can be roughened before the initial setting of the concrete.

[0014] Through the above technical solution, the irregular protrusions and irregular grooves can increase the collective force between the post-cast concrete and the prefabricated wall on the A side and the prefabricated wall on the B side, thereby increasing the overall strength and structural stability of the cavity wall after casting.

[0015] The utility model is further configured as follows: the connection structure includes a steel mesh A prefabricated in the prefabricated wall on the A side, a steel mesh B fixedly connected to the prefabricated wall on the B side, and a plurality of evenly distributed annular ribs A connecting the steel mesh A and the steel mesh B; the middle portion of the annular ribs A is exposed in the post-casting area.

[0016] Through the above technical solution, the steel mesh can increase the connection stability with the prefabricated wall.

[0017] A plurality of annular ribs B are provided in the post-casting area, and the four ends of the annular ribs B are fixed on four adjacent annular ribs A;

[0018] The annular rib A and the annular rib B are arranged perpendicularly.

[0019] The provision of annular reinforcement B can increase the bonding strength of the concrete in the post-casting area, and can also increase the structural strength of the middle portion of the annular reinforcement A.

[0020] The outstanding effects of the utility model are:

[0021] Compared with the prior art, by prefabricating a prefabricated box for passing wires and pipes in the prefabricated wall, the installation of pipelines in the later stage can be facilitated, and the trouble of secondary wall chiseling and the risks caused by secondary wall chiseling can be avoided;

[0022] The connection groove and the internal thread connection sleeve can be provided to facilitate the alignment and connection of the cavity wall in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a front view of the utility model;

[0025] Figure 3 for Figure 2 Right side view;

[0026] Figure 4 for Figure 3 About the cross-sectional view of AA;

[0027] Figure 5 for Figure 4 A partial enlarged view of B;

[0028] Figure 6 It is a schematic diagram of the assembly of the connection structure and the annular rib B of the utility model.

[0029] Reference numerals: 10, prefabricated wall on the A surface; 101, connecting groove; 11, internal thread connecting sleeve; 111, convex ring;

[0030] 1000, post-casting area; 1001, prefabricated box for wire and pipe;

[0031] 20. Prefabricated wall on side B;

[0032] 30. Connection structure; 301. Steel mesh A; 302. Steel mesh B; 303. Annular rib A;

[0033] 40. Annular rib B. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] The following references Figures 1 to 6 The utility model is described as follows:

[0036] A prefabricated cavity wall component, such as Figure 1 , Figure 2As shown, it includes a prefabricated wall 10 on the A side, a prefabricated wall 20 on the B side, and a connecting structure 30 connecting the prefabricated wall 10 on the A side and the prefabricated wall 20 on the B side; a post-casting area 1000 is formed between the prefabricated wall 10 on the A side and the prefabricated wall 20 on the B side; a prefabricated box 1001 for passing wires and pipes is prefabricated and fixed on the prefabricated wall 10 on the A side and the prefabricated wall 20 on the B side, and the middle part of the prefabricated box 1001 for passing wires and pipes passes through the post-casting area 1000; the prefabricated box for passing wires and pipes is fixedly connected to the connecting structure by binding.

[0037] The general production process of the cavity wall prefabricated component is to first place a part of the connection structure in the mold of the A-side prefabricated wall 10, and then add concrete to the mold of the A-side prefabricated wall 10. After the concrete of the A-side prefabricated wall reaches the strength requirement, turn over the A-side prefabricated wall and place the other part of the connection structure in the mold of the B-side prefabricated wall 20. At this time, the mold of the B-side prefabricated wall 20 has just been filled with concrete. Then, the connection structure is inserted into the concrete in the mold of the B-side prefabricated wall 20. After the concrete in the mold of the B-side prefabricated wall 20 solidifies, the cavity wall prefabricated component is obtained.

[0038] By prefabricating prefabricated boxes for passing wires and pipes in the prefabricated wall 10 on the A side and the prefabricated wall 20 on the B side, the installation of pipelines in the later stage can be facilitated, and the trouble of secondary wall chiseling and the impact of secondary wall chiseling on the wall can be avoided.

[0039] like Figure 3 , Figure 5 As shown, both side ends of the A-side prefabricated wall 10 are formed with connecting grooves 101 with outer openings, and the inner ends of the connecting grooves 101 are prefabricated and fixed with internal thread connecting sleeves 11 .

[0040] The inner side and outer side of the cavity wall prefabricated component can be easily distinguished by the connection groove. Generally, the A-side prefabricated wall with the connection groove is set as the inner wall;

[0041] A connecting plate can be placed in the connecting groove of two adjacent cavity wall prefabricated components, and the connecting plate is fixed to the internal thread connecting sleeve by screws, so that the two adjacent cavity wall prefabricated components can be connected conveniently, and the inner and outer walls of the two cavity wall prefabricated components can be aligned conveniently; after alignment, the pouring work in the later pouring area is convenient.

[0042] like Figure 5 As shown, a convex ring 111 is formed on the end of the internal threaded connection sleeve 11 extending into the post-casting area 1000 .

[0043] The convex ring can play a blocking role to prevent the internal thread connection sleeve from being driven axially when the screw is tightened.

[0044] A plurality of irregular protrusions and irregular grooves 1002 are formed on one side wall of the A-side prefabricated wall 10 and the B-side prefabricated wall 20 facing the post-casting area 1000. The irregular protrusions and irregular grooves can be roughened before the initial setting of the concrete.

[0045] The irregular protrusions and irregular grooves can increase the collective force between the post-cast concrete and the A-side precast wall 10 and the B-side precast wall 20, thereby increasing the overall strength and structural stability of the cavity wall after casting.

[0046] like Figure 2 , Figure 6 As shown, the connection structure 30 includes a steel mesh A301 prefabricated in the prefabricated wall 10 on the A side, a steel mesh B302 fixedly connected to the prefabricated wall 20 on the B side, and a plurality of evenly distributed annular ribs A303 connecting the steel mesh A301 and the steel mesh B302; the middle portion of the annular ribs A303 are exposed in the post-casting area 1000.

[0047] Steel mesh can increase the stability of the connection with the precast wall.

[0048] A plurality of annular ribs B40 are provided in the post-casting area 1000, and the four ends of the annular ribs B40 are fixed on four adjacent annular ribs A303;

[0049] The annular rib A303 is arranged perpendicular to the annular rib B40.

[0050] The provision of the annular rib B can increase the bonding strength of the concrete in the post-casting area 1000 and can also increase the structural strength of the middle portion of the annular rib A.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A cavity wall prefabricated component, comprising an A-side prefabricated wall (10), a B-side prefabricated wall (20), and a connecting structure (30) connecting the A-side prefabricated wall (10) and the B-side prefabricated wall (20); characterized in that: A post-casting area (1000) is formed between the A-side prefabricated wall (10) and the B-side prefabricated wall (20); a prefabricated box (1001) for passing wires and pipes is prefabricated and fixedly provided on the A-side prefabricated wall (10) and the B-side prefabricated wall (20), and the middle part of the prefabricated box (1001) for passing wires and pipes passes through the post-casting area (1000).

2. The prefabricated cavity wall component according to claim 1, characterized in that: The two side ends of the A-side prefabricated wall (10) are formed with connecting grooves (101) with outer openings, and the inner ends of the connecting grooves (101) are prefabricated with internal threaded connecting sleeves (11).

3. The prefabricated cavity wall component according to claim 2, characterized in that: The end of the internal thread connection sleeve (11) extending into the post-casting area (1000) is formed with a convex ring (111).

4. The prefabricated cavity wall component according to claim 1, characterized in that: A plurality of irregular protrusions and irregular grooves (1002) are formed on one side wall of the A-side prefabricated wall (10) and the B-side prefabricated wall (20) facing the post-casting area (1000).

5. The prefabricated cavity wall component according to claim 4, characterized in that: The connection structure (30) comprises a steel mesh A (301) prefabricated in the prefabricated wall (10) on the A side, a steel mesh B (302) fixedly connected to the prefabricated wall (20) on the B side, and a plurality of evenly distributed annular ribs A (303) connecting the steel mesh A (301) and the steel mesh B (302); the middle portion of the annular ribs A (303) is exposed in the post-casting area (1000).

6. The prefabricated cavity wall component according to claim 5, characterized in that: A plurality of annular ribs B (40) are provided in the post-casting area (1000), and four ends of the annular ribs B (40) are fixedly mounted on four adjacent annular ribs A (303); The annular rib A (303) and the annular rib B (40) are arranged perpendicularly.

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