A prefabricated wall structure for dry connection

Abstract

The utility model discloses a kind of prefabricated wall structures for dry type connection, including prefabricated main wall, the back surface of the prefabricated main wall is fixedly connected with prefabricated auxiliary wall, the outer surface of the prefabricated auxiliary wall is fixedly connected with multiple fixed plates, the outer surface of each described fixed plate is equipped with multiple bolt holes, the outer surface of the prefabricated auxiliary wall is fixedly connected with multiple with mouth connecting plates, the inside of each described with mouth connecting plate is provided with fastening bolt, the outer surface of the prefabricated main wall and the outer surface of prefabricated auxiliary wall are fixedly connected with multiple side with mouth inserting plate. The cooperation of the bolt hole of the fixed plate, the fastening bolt of the with mouth connecting plate and the side with mouth inserting plate and side inserting rod, realize the mechanical connection of prefabricated main wall and prefabricated auxiliary wall, without wet operation such as grouting, only need bolt fastening and plug-in operation when construction, not affected by weather, installation speed is significantly improved compared with traditional wet type connection, especially suitable for project with tight schedule.

Description

Technical Field

[0001] This utility model relates to the field of building structures, and in particular to a prefabricated wall structure for dry connection. Background Technology

[0002] In the development of the construction industry, precast walls have been increasingly widely used due to their advantages such as fast construction speed, controllable quality, environmental protection and energy saving. Precast walls refer to building wall components that are pre-produced in factories. They are usually made of materials such as concrete and steel bars and are assembled on site. Dry-connected precast wall structures mainly achieve structural integrity through mechanical connection or prestressed connection between precast components, without the need for on-site concrete pouring.

[0003] Dry connection has emerged as a solution to these problems, allowing precast components to be connected on-site without concrete pouring, significantly shortening the construction cycle and reducing on-site wet work. However, in practical applications, it still reveals many issues. Traditional precast wall connections rely heavily on wet operations such as grouting and plastering, which have obvious drawbacks. Construction requires waiting for the mortar or concrete to solidify, resulting in long construction periods and significant environmental impacts, such as low temperatures and rainy weather, which can easily lead to insufficient strength. The large amount of on-site wet work also causes serious dust and noise pollution. Therefore, we propose a precast wall structure for dry connection to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a prefabricated wall structure for dry connection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A prefabricated wall structure for dry connection includes a prefabricated main wall, a prefabricated secondary wall fixedly connected to the back of the prefabricated main wall, a plurality of fixing plates fixedly connected to the outer surface of the prefabricated secondary wall, each fixing plate having a plurality of bolt holes on its outer surface, a plurality of connecting plates with openings fixedly connected to the outer surface of the prefabricated secondary wall, each connecting plate with openings having a fastening bolt inside, a plurality of side-mounted insert plates fixedly connected to the outer surfaces of the prefabricated main wall and the prefabricated secondary wall, and a plurality of side-mounted rods adapted to the side-mounted insert plates fixedly connected to the outer surface of the prefabricated secondary wall.

[0007] In a further embodiment, the outer surfaces of the precast main wall and the precast secondary wall are jointly fixedly connected with a plurality of reinforcing ribs, and a sealing ring is fixedly connected to the back of the precast main wall.

[0008] In a further embodiment, a plurality of lifting rings are fixedly connected to the upper surface of the prefabricated sub-wall.

[0009] In a further embodiment, the upper surface of the prefabricated sub-wall is fixedly connected with a plurality of positioning pins, the bottom surface of the prefabricated sub-wall is provided with a plurality of positioning pin holes, and the outer surface of the prefabricated sub-wall is fixedly connected with a plurality of indicator marks corresponding to the positioning pin holes.

[0010] In a further embodiment, a plurality of reinforcing plates are fixedly connected to the back of the prefabricated main wall, and the outer surface of each reinforcing plate is fixedly connected to the outer surface of the connecting plate with the opening.

[0011] In a further embodiment, the interior of the prefabricated main wall is provided with a sound-absorbing material filling layer, which is made of glass wool or rock wool.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device achieves mechanical connection between prefabricated main walls and prefabricated secondary walls through the bolt holes of the fixed plate, the fastening bolts of the connecting plate with openings, and the cooperation of the side-mounted insert plate and side-mounted rod. It eliminates the need for wet operations such as grouting, and only requires bolt tightening and insertion during construction. It is not affected by the weather and the installation speed is significantly improved compared to traditional wet connections. It is especially suitable for projects with tight schedules. Moreover, the side-mounted insert plate and side-mounted rod provide precise positioning to ensure that the wall is aligned correctly during connection. The bolt connection between the fastening bolts and the fixed plate forms a rigid fixation. With the help of the reinforcing ribs and reinforcing plates, the stress on the wall is distributed, improving the overall shear and seismic resistance. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a prefabricated wall structure used for dry connection;

[0015] Figure 2 A schematic diagram of the combined structure of the precast main wall in a precast wall structure used for dry connection;

[0016] Figure 3 This is a rear view of the precast main wall in a precast wall structure used for dry connection.

[0017] Figure 4 A bottom view of the precast main wall in a precast wall structure used for dry connection.

[0018] Figure 5 This is a left-view schematic diagram of the precast main wall in a precast wall structure used for dry connection.

[0019] In the diagram: 1. Precast main wall; 2. Precast secondary wall; 3. Sealing ring; 4. Positioning pin; 5. Positioning pin hole; 6. Indicator; 7. Lifting ring; 8. Sound-absorbing material filling layer; 9. Reinforcing rib; 10. Connecting plate with opening; 11. Fastening bolt; 12. Fixing plate; 13. Side plate with opening; 14. Side rod; 15. Reinforcing plate; 16. Bolt hole. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figure 1-5In this utility model, a prefabricated wall structure for dry connection includes a prefabricated main wall 1, a prefabricated secondary wall 2 fixedly connected to the back of the prefabricated main wall 1, a plurality of fixing plates 12 fixedly connected to the outer surface of the prefabricated secondary wall 2, each fixing plate 12 having a plurality of bolt holes 16 on its outer surface, a plurality of connecting plates 10 with openings fixedly connected to the outer surface of the prefabricated secondary wall 2, each connecting plate 10 with openings having a fastening bolt 11 inside, and a plurality of side-mounted insert plates 13 fixedly connected to both the outer surface of the prefabricated main wall 1 and the outer surface of the prefabricated secondary wall 2. The outer surface of the precast secondary wall 2 is fixedly connected with multiple side inserts 14 that are compatible with the side-mounted insert plate 13. The side-mounted insert plate 13 and the side inserts 14 are pre-positioned, and the bolts are rigidly fixed to the connecting plate 10. The wall connection can be completed without wet work, which solves the problems of low efficiency and great influence of the environment in traditional connection. The connecting components of the precast main wall 1 and the precast secondary wall 2, such as the connecting plate 10 and the side inserts 14, are precisely processed in the factory with small dimensional errors. Only assembly is required on site, which reduces the impact of human operation on quality, such as avoiding hollowing caused by insufficient grouting.

[0024] Multiple reinforcing ribs 9 are fixedly connected to the outer surfaces of the precast main wall 1 and the precast secondary wall 2. A sealing ring 3 is fixedly connected to the back of the precast main wall 1. The reinforcing ribs 9 enhance the integrity of the main and secondary walls, improve shear strength, and prevent cracking at the connection. The sealing ring 3 fills the gaps in the walls, preventing rainwater and dust from seeping in and solving the problem of insufficient sealing that may exist in dry connections. Multiple lifting rings 7 are fixedly connected to the upper surface of the precast secondary wall 2. The lifting rings 7 facilitate the lifting operation of the precast wall in the factory, transportation, and on-site, eliminating the need for temporary welding of lifting points, avoiding damage to the wall structure, and improving the safety and efficiency of lifting.

[0025] Multiple positioning pins 4 are fixedly connected to the upper surface of the precast secondary wall 2, and multiple positioning pin holes 5 are opened on the bottom surface of the precast secondary wall 2. Multiple indicator marks 6 corresponding to the positioning pin holes 5 are fixedly connected to the outer surface of the precast secondary wall 2. The positioning pins 4 and positioning pin holes 5 enable quick alignment of the upper and lower precast walls. The indicator marks 6 help workers visually identify the insertion position, reducing installation deviation. The pin connection enhances the vertical integrity and prevents the wall from shifting under vertical load. Multiple reinforcing plates 15 are fixedly connected to the back of the precast main wall 1. The outer surface of each reinforcing plate 15 is connected to the connecting plate 1 with a slot. The outer surface of the 0 is fixedly connected, and the reinforcement plate 15 enhances the connection strength between the connecting plate 10 with the precast main wall 1, preventing the connecting plate from falling off the wall surface due to excessive force such as the wall's own weight or lateral force, thus extending the service life of the structure. The interior of the precast main wall 1 is equipped with a sound-absorbing material filling layer 8, which is made of glass wool or rock wool. The sound-absorbing material filling layer 8 can be filled with glass wool or rock wool to improve the sound insulation performance of the wall, reduce the transmission of indoor and outdoor noise, and improve the living or office environment. The material is embedded during factory prefabrication to avoid unevenness in on-site laying and ensure stable sound insulation effect.

[0026] The working principle of this utility model is as follows:

[0027] When assembling the precast main wall 1, the side insert rod 14 of the precast secondary wall 2 can be aligned with the side insert plate 13 of the precast main wall 1 and inserted. Then the connecting plate 10 with the opening will naturally align with the fixing plate 12. Then, the fastening bolt 11 is passed through the corresponding screw hole for fixing, and further reinforcement is achieved through the bolt hole 16 of the fixing plate 12. The connection of a section of the wall can be completed without waiting for solidification, and the next process can be carried out directly.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A prefabricated wall structure for dry connection, characterized in that: The system includes a prefabricated main wall (1), a prefabricated secondary wall (2) fixedly connected to the back of the prefabricated main wall (1), a plurality of fixing plates (12) fixedly connected to the outer surface of the prefabricated secondary wall (2), a plurality of bolt holes (16) being provided on the outer surface of each fixing plate (12), a plurality of connecting plates (10) with openings fixedly connected to the outer surface of the prefabricated secondary wall (2), a fastening bolt (11) being provided inside each connecting plate (10), a plurality of side insert plates (13) fixedly connected to the outer surface of the prefabricated main wall (1) and the outer surface of the prefabricated secondary wall (2), and a plurality of side insert rods (14) adapted to the side insert plates (13) fixedly connected to the outer surface of the prefabricated secondary wall (2).

2. A prefabricated wall structure for dry connection according to claim 1, characterized in that: The outer surface of the precast main wall (1) and the outer surface of the precast secondary wall (2) are jointly fixedly connected with a number of reinforcing ribs (9), and a sealing ring (3) is fixedly connected to the back of the precast main wall (1).

3. A prefabricated wall structure for dry connection according to claim 1, characterized in that: The upper surface of the prefabricated sub-wall (2) is fixedly connected with multiple lifting rings (7).

4. A prefabricated wall structure for dry connection according to claim 1, characterized in that: The upper surface of the prefabricated sub-wall (2) is fixedly connected with multiple positioning pins (4), the bottom surface of the prefabricated sub-wall (2) is provided with multiple positioning pin holes (5), and the outer surface of the prefabricated sub-wall (2) is fixedly connected with multiple indicator marks (6) corresponding to the positioning pin holes (5).

5. A prefabricated wall structure for dry connection according to claim 1, characterized in that: The back of the prefabricated main wall (1) is fixedly connected with a plurality of reinforcing plates (15), and the outer surface of each reinforcing plate (15) is fixedly connected to the outer surface of the connecting plate (10) with opening.

6. A prefabricated wall structure for dry connection according to claim 1, characterized in that: The prefabricated main wall (1) is provided with a sound-absorbing material filling layer (8), which is made of glass wool or rock wool.

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