Prefabricated reversibly assembled multifunctional lattice infilled wall and installation method thereof

Abstract

The present application belongs to the field of fabricated building engineering, and particularly relates to a prefabricated reversible assembled multifunctional lattice filling wall and a mounting method thereof, which comprises a prefabricated lattice frame wall unit, connecting anchor bolts, a hard rubber sheet and a groove-shaped self-adhesive cover plate. The prefabricated lattice frame wall unit is provided with a plurality of reserved holes and reserved hole grooves, and adjacent prefabricated lattice frame wall units are connected through bolts. The connecting anchor bolts are connected with the outer wall beam columns through the reserved holes of the prefabricated lattice frame wall unit. The groove-shaped self-adhesive cover plate is arranged on the reserved hole groove, and the hard rubber sheet is arranged at the gap between the prefabricated lattice frame wall unit and the outer wall beam column. The present application is transported to the indoor by the elevator, is simple to assemble, has small decoration noise and low construction difficulty, and meets the multiple requirements of residents for flexible space layout, simplicity and reversible construction.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building engineering, specifically relating to a prefabricated reversible prefabricated multifunctional grid infill wall and its installation method. Background Technology

[0002] With the comprehensive development of modern society and the improvement of people's living standards, the demands for living environment, building quality, and housing safety and comfort are constantly increasing. The existing planning concepts and design levels are vastly different from the needs of modern lifestyles, and the gradual aging of structures over time has resulted in existing housing far from meeting people's needs. To adapt to the ever-changing needs of the people and improve the urban environment and functions, urban renewal has become one of the national development strategies. Therefore, researching reversible, multifunctional structural systems with sustainable development characteristics, aimed at meeting the people's ever-increasing needs for a better life, is an inevitable trend in the development of the construction industry.

[0003] Building walls are the components that have the greatest impact on structural performance and building function. They not only significantly affect the vertical and horizontal load-bearing capacity and lateral stiffness of the structure, but also have a decisive influence on the flexibility of usable space, the sound and heat insulation performance of rooms, and the ease of laying equipment pipelines.

[0004] Nowadays, residents' needs for residential space are becoming increasingly diversified and personalized. In order to expand the usable space of their homes, or even change the layout of their homes to meet their own requirements, some people choose to demolish parts of the walls during the renovation stage. The construction process is time-consuming and laborious, and it disturbs the normal lives of other residents. In some cases, load-bearing walls are even demolished, which seriously affects the safety of the building and may even lead to construction accidents.

[0005] Furthermore, with the implementation of green building standards, the sound insulation capabilities of residential building walls against environmental and impact noise have attracted increasing attention. Therefore, improving building sound insulation performance has become a crucial demand for the public. Common methods for improving the sound insulation of residential buildings include: 1. Constructing heavy walls for environmental sound insulation, using thick and dense wall materials to enhance sound insulation. This method is simple and efficient, but excessively thick heavy walls occupy usable space, and the weight of the brick walls increases the load on the building, requiring higher load-bearing capacity. Moreover, the wall construction process involves wet work, resulting in only moderate sound insulation against impact noise. 2. Constructing lightweight walls, such as the most common lightweight steel frame gypsum board walls. This method results in lighter walls and shorter construction time, but the sound insulation, heat insulation, and load-bearing capacity of the walls are relatively weak. 3. Constructing composite walls combining heavy and lightweight walls, typically by adding a lightweight sound-absorbing layer to the existing solid wall to enhance sound insulation. This method can achieve good sound insulation and is the most widely used, but the placement of soundproof walls needs to be based on the location of the original walls and cannot be flexibly arranged, thus failing to meet people's needs for flexible spatial layout.

[0006] In home renovation projects, the rational layout and construction methods of equipment pipelines directly affect the labor intensity, noise and dust pollution levels during construction, and the ease of use after delivery. Common pipeline installation methods include: 1. Directly laying pipes on the floor slab: This is the simplest method, with a shorter laying length, resulting in lower costs. However, pipeline inspection and maintenance are inconvenient, requiring the removal of floor space, leading to economic losses. 2. Laying pipes in grooves in the wall: This method is also relatively inexpensive and convenient for inspection and maintenance. However, the noise pollution from cutting grooves is severe, and it can damage existing walls, affecting the load-bearing capacity and seismic resistance of load-bearing walls. Horizontal grooves within walls are prohibited by relevant regulations. 3. Suspending pipes under the building: This method facilitates pipe inspection and maintenance, and problems are easily detected. However, it is difficult and expensive to install, reduces the usable floor height of the residence, and overhead pipe installation is unsightly, often requiring a suspended ceiling. To address these issues, pre-drilling pipe trenches within the wall may be a feasible solution.

[0007] Currently, prefabricated buildings are being vigorously promoted in China, with prefabricated walls divided into load-bearing walls and infill walls. Load-bearing concrete walls are large and heavy, making flexible assembly and arrangement difficult. They also have limited functionality and poor sound and heat insulation. Although they are prefabricated, they lack sustainable and reversible retrofitting capabilities and cannot meet users' requirements for flexible spatial layout. For prefabricated infill walls, several mature products are available, offering advantages such as lightweight construction, good heat and sound insulation, and easy installation, including ALC wall panels, polystyrene boards, paper honeycomb multi-functional panels, and various sandwich multi-functional panels. However, these wall panels contribute little to the structural load-bearing capacity and are insufficient to meet the needs for low-cost reversible adjustment and convenient pipeline installation and maintenance.

[0008] Therefore, developing a reversible prefabricated multifunctional wall panel that can simultaneously achieve load-bearing reinforcement, sound and heat insulation, flexible space adjustment, and convenient pipeline layout and maintenance is of great practical significance for the continuous improvement of the function of the building itself and the environment, as well as the sustainable development of urban and rural construction. Summary of the Invention

[0009] To address the problems existing in the prior art, this invention discloses a prefabricated reversible assembled multifunctional grid infill wall and its installation method, and specifically discloses the following technical solutions:

[0010] A prefabricated reversible modular multi-functional grid infill wall includes prefabricated grid frame wall units, connecting anchors, hard rubber sheets, and grooved self-adhesive cover plates. The prefabricated grid frame wall units are provided with a number of reserved holes and reserved hole grooves. Adjacent prefabricated grid frame wall units are connected by bolts. The connecting anchors pass through the reserved holes of the prefabricated grid frame wall units and are connected to the external wall beams and columns. The grooved self-adhesive cover plates are placed on the reserved hole grooves. The hard rubber sheets are placed in the gaps between the prefabricated grid frame wall units and the external wall beams and columns.

[0011] Furthermore, it also includes a sound and heat insulation partition, which is set on one side of the prefabricated lattice frame wall unit or between two prefabricated lattice frame wall units. The sound and heat insulation partition is made of a whole metal plate or a sandwich sound insulation material plate.

[0012] Furthermore, it also includes sound and heat insulation filling blocks, which are installed in the lattice of the prefabricated lattice frame wall unit.

[0013] Furthermore, the prefabricated lattice frame wall unit includes a common frame wall unit, which is composed of left and right columns and multiple layers of horizontal beams. The reserved slots are set on the surfaces of the left and right columns and horizontal beams, and the reserved holes are set in the reserved slots. The reserved holes are countersunk holes.

[0014] Furthermore, the height of the ordinary frame wall unit is 1 / 3 to 2 / 3 of the floor height; the thickness is ≥80mm, less than the column width, and the width is 0.6m to 1.5m.

[0015] Furthermore, the width of the left and right uprights is 80mm to 300mm, and the height of the crossbeam is 60mm to 120mm.

[0016] Furthermore, it also includes a door frame unit and a window frame unit. The door frame unit has reserved door and window openings. The door frame unit and the window frame unit are fitted into the door and window openings. The window frame unit is a rectangular frame with reserved holes on the frame. The door frame unit is a П-shaped frame with the bottom sealed by a metal plate. The metal plate has reserved holes for fixing bolts.

[0017] Furthermore, the materials used for the prefabricated lattice frame wall units are fiber concrete, reinforced concrete, steel profiles, aluminum alloys, or wood.

[0018] Furthermore, the grooved self-adhesive cover plate is equipped with a cable conduit inside. The grooved opening size of the grooved self-adhesive cover plate is larger than the diameter of the conduit. Self-adhesive is provided at both ends of the grooved opening. After the conduit is inserted into the conduit in the reserved hole, the grooved self-adhesive cover plate is pasted onto the crossbeam at the grid space, thus turning the conduit from visible to concealed.

[0019] An installation method for a prefabricated reversible modular multi-functional grid infill wall includes the following steps:

[0020] S01. Transport the prefabricated lattice frame wall unit indoors and assemble it according to the usage requirements of the prefabricated multi-functional lattice infill wall.

[0021] S02. Drill holes in the corresponding parts of the beams and columns of the room according to the location and size of the reserved holes in the prefabricated lattice frame wall unit;

[0022] S03. Move the prefabricated lattice frame wall unit to the predetermined position, bolt it at the connection position using connecting anchors, insert pipes and pipelines at the reserved hole positions, and attach the grooved self-adhesive cover plate.

[0023] S04. Further construction of the assembled prefabricated lattice frame wall is carried out based on actual usage conditions:

[0024] A. When a grid space is needed, only the surface layer of the prefabricated grid frame wall unit is decorated, and no further filling is required;

[0025] B. When it is necessary to improve the sound insulation and heat insulation performance, apply non-polluting inorganic adhesive to the inner wall of the grid, and then fill it with sound insulation and heat insulation filler blocks of the same thickness.

[0026] C. When the infill wall only needs to hang relatively light items, foamed concrete should be used for infill;

[0027] D. When the infill wall needs to hang wall cabinets or other heavy items, it can be directly anchored through the reserved holes, or solid bricks can be locally laid in the grid space to improve its load-bearing capacity.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. This invention uses prefabricated grid-type frame wall units for assembly, which are lightweight and small in size. They can be transported indoors by convenient means such as elevators. The walls are assembled and installed indoors by bolting, resulting in less noise during decoration and lower construction difficulty, effectively reducing safety hazards during transportation and assembly.

[0030] 2. Wall units can be flexibly assembled according to actual project needs, and can be flexibly reinforced for parts of new buildings and existing buildings with insufficient load-bearing capacity, thereby improving the load-bearing capacity and seismic resistance of the structure;

[0031] 3. The prefabricated multi-functional grid infill wall described in this invention can select different sound insulation and heat insulation measures as needed to achieve the required sound insulation and heat insulation effects, giving full play to the advantages of lightweight sound insulation walls, heavy-duty sound insulation walls, and combined sound insulation walls; and the reserved holes on it can be used for the connection and assembly of the wall, or for the laying of water and electricity pipes, reducing the design difficulty, construction difficulty and construction cost of water and electricity pipe laying, and facilitating the later inspection and maintenance of the pipes. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the prefabricated reversible assembled multifunctional lattice infill wall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the assembly of a common frame wall unit of the present invention;

[0034] Figure 3 This is a schematic diagram of the assembly of the door frame unit, window frame unit, and ordinary frame wall unit of the present invention into a complete wall;

[0035] Figure 4 This is a schematic diagram of a two-story, one-span ordinary frame wall unit of the present invention;

[0036] Figure 5 This is a sectional view of the anchorage connection between ordinary frame wall units of the present invention;

[0037] Figure 6 This is a sectional view of the prefabricated lattice frame wall unit and its anchorage connection with beams and columns according to the present invention;

[0038] Figure 7 This is a schematic diagram of the installation of the groove-shaped self-adhesive cover plate of the present invention;

[0039] Figure 8 This is a side view of the installation section of the groove-shaped self-adhesive cover plate of the present invention;

[0040] Figure 9 This is a side view of the single-layer narrow partition fully soundproof and heat-insulating filler block wall of the present invention;

[0041] Figure 10 This is a side view of the sound and heat insulation filling block wall of the single-layer wide partition section of the present invention;

[0042] Figure 11 This is a side view of the double-layer sandwich non-soundproof and heat-insulating filling block partition wall of the present invention;

[0043] Figure 12 This is a side view of the single-layer frame wall with single-layer core board partition and no sound insulation or heat insulation filling block of the present invention.

[0044] Among them, 1. Prefabricated multi-functional grid infill wall; 2. Prefabricated grid frame wall unit; 3. Connecting anchor bolts; 4. Sound and heat insulation partition; 5. Sound and heat insulation filling block; 6. Hard rubber sheet; 7. Groove self-adhesive cover plate; 8. Self-adhesive; 2-1. Ordinary frame wall unit; 3-1. Door frame unit; 3-2. Window frame unit; 3-3. Metal plate; 4-1. Column; 4-2. Beam; 4-3. Reserved hole; 5-1. Connecting bolt; 5-2. Bolt washer; 6-1. Wall hole. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1

[0047] See attached document Figure 1-8 This embodiment discloses a prefabricated reversible assembled multi-functional lattice infill wall, including a prefabricated lattice frame wall unit 2, connecting anchors 3, sound and heat insulation partitions 4, sound and heat insulation filling blocks 5, hard rubber sheets 6, and grooved self-adhesive covers 7. The prefabricated lattice frame wall units 2 are arranged in pairs, with the sound and heat insulation partitions 4 arranged between the prefabricated lattice frame wall units 2. The prefabricated lattice frame wall units 2 are provided with a number of reserved holes 4-3 and reserved hole grooves. The reserved holes 4-3 are used for both anchor bolt connection and pipeline passage. The connecting anchors 3 pass through the reserved holes 4-3 of the prefabricated lattice frame wall units 2 and connect to the external wall beams and columns. The grooved self-adhesive covers 7 are arranged on the reserved hole grooves. The sound and heat insulation filling blocks 5 are arranged in the lattice of the prefabricated lattice frame wall units 2. The hard rubber sheets 6 are arranged in the gaps between the prefabricated lattice frame wall units 2 and the external wall beams and columns.

[0048] The prefabricated lattice frame wall unit 2 can be transported to each floor via convenient methods such as elevators. The prefabricated lattice frame wall unit 2 includes a standard frame wall unit 2-1. To facilitate assembly and elevator transport, the dimensions and weight of the frame wall units are controlled. The height of the standard frame wall unit 2-1 should be 1 / 3 to 2 / 3 of the floor height, typically in a two-story, one-span or three-story, two-span configuration; the thickness should be selected from 80mm to the column width based on the wall's function; the width should be 0.6m to 1.5m. The standard frame wall unit 2-1 consists of left and right columns 4-1 and multiple layers of horizontal beams 4-2. The width of the left and right columns 4-1 should be 80mm to 300mm, and the height of the horizontal beams 4-2 should be 60mm to 120mm.

[0049] The prefabricated lattice frame wall unit 2 of this invention is simply, conveniently, and reliably connected to the main frame of the building and to other frame wall units via bolts inserted through pre-drilled holes 4-3. Pre-drilled slots are located on the surfaces of the left and right columns 4-1 and the beams 4-2. Pre-drilled holes 4-3 are located within these slots and are countersunk. Each pre-drilled hole 4-3 has a cylindrical recess with a diameter of 40mm-50mm and a depth of 20mm at its inner end within the lattice opening, facilitating the insertion of nuts and washers for concealed connection. Adjacent ordinary frame wall units 2-1 are connected by bolts.

[0050] As a preferred embodiment of the present invention, it further includes a door frame unit 3-1 and a window frame unit 3-2. The door frame unit 3-1 has a reserved door and window opening. The door frame unit 3-1 and the window frame unit are fitted into the door and window opening. The window frame unit 3-2 is a rectangular frame with a reserved hole 4-3 on the frame. It is used in combination with a suitable ordinary frame wall unit 2-1 on the upper and lower parts. The door frame unit 3-1 is a П-shaped frame. The lower part is sealed by a metal plate 3-3. The metal plate 3-3 has reserved fixing bolt holes. The upper part is combined with a suitable ordinary frame wall unit 2-1. The door frame unit 3-1 and the window frame unit 3-2 are determined according to the design size of the door and window opening. The width should not be greater than 1.5m.

[0051] To prevent damage to the door frame unit 3-1 and window frame unit 3-2 due to insufficient local rigidity during transportation and installation, X-shaped cross cables can be inserted into the diagonally reserved holes 4-3.

[0052] The aforementioned precast lattice frame wall unit 2 can be selected in different sizes and materials, as well as the number of open spaces, according to design objectives, stiffness requirements, and spatial conditions. The materials used for the precast lattice frame wall unit 2 can be fiber-reinforced concrete, reinforced concrete, structural steel, aluminum alloy, or wood. When concrete is used, the concrete strength grade should not be lower than C20. When reinforced concrete is used, the main reinforcement can be 3mm-5mm steel wire, and the stirrups can be closed steel hoops or welded bolted stirrups. When metal plate is used, the wall thickness should not be less than 2mm.

[0053] In a preferred embodiment of the present invention, the diameter of the connecting anchor 3 is selected as M20-M25, and a bolt washer 5-2 is provided on the outside of the connecting bolt 5-1, with a thickness of not less than 4mm. According to the position and size of the reserved hole 4-3 of the prefabricated lattice frame wall unit 2, wall holes 6-1 are drilled in the corresponding parts of the beams and columns of the room to realize the bolt connection between the infill wall and the frame as a whole.

[0054] In a preferred embodiment of the present invention, the sound and heat insulation partition 4 can be a single solid metal plate, a common sandwich sound insulation material board, or a conventional lightweight wall. The sound and heat insulation filling block 5 is made of conventional sound and heat insulation porous material.

[0055] As a preferred embodiment of the present invention, a hard rubber sheet 6 is placed at the bolt connection gap of the prefabricated lattice frame wall unit 2. The width is equal to the thickness of the ordinary frame wall unit 2-1, and the thickness is preferably 2-10mm. The connection method of bolt + rubber sheet pad not only helps to seal the gap and improve the environmental sound insulation performance, but also significantly improves the energy dissipation capacity of the structure under seismic action. At the same time, the wall is easy to disassemble, which facilitates reversible assembly and position adjustment.

[0056] The self-adhesive channel cover 7 houses the wiring conduit. The channel opening of the self-adhesive channel cover 7 should be larger than the conduit diameter. Self-adhesive strips 8 are installed at both ends of the channel opening. After the conduit is inserted into the pipe within the pre-drilled hole 4-3, the self-adhesive channel cover 7 is attached to the crossbeam 4-2 at the grid space, thus concealing the conduit. The self-adhesive strips 8 on the channel cover allow for a modified cover design with one-sided compartments and a flip-top mechanism, facilitating pipe maintenance and inspection, reducing the design complexity of internal pipework in residential buildings, enabling flexible pipe layout, reducing the labor intensity and construction difficulty of inserting conduits, and also facilitating future pipe maintenance and repair.

[0057] In the above technical solution, the prefabricated multi-functional grid infill wall can be customized and assembled with different materials and sizes to achieve functions such as load-bearing capacity reinforcement, improved seismic performance, heat insulation and sound insulation, and partial use of space in new construction and renovation projects. If the inter-story lateral stiffness is insufficient, several grid walls can be added for reinforcement. If the required stiffness increase is too large, the stiffness requirements can be met by adjusting the column width and the number of beams. For reinforcement situations where the load-bearing capacity of local beams is insufficient, if the load-bearing capacity of the upper beam is insufficient, the prefabricated multi-functional grid infill wall 1 can be directly installed under the beam for support; if the load-bearing capacity of the lower beam is insufficient, a high-strength concrete continuous slab with a height of 100mm-200mm should be pasted first, and then the prefabricated multi-functional grid infill wall of appropriate size should be installed. The selection of the wall and its size allows for flexible selection of reinforcement schemes.

[0058] like Figure 9-12 As shown, if a prefabricated multi-functional grid infill wall 1 is used for the entire wall, the choice can be flexibly made according to actual needs such as structural lateral stiffness reinforcement requirements, space utilization requirements, and sound and heat insulation requirements:

[0059] like Figure 9 As shown, an embodiment of a single-layer narrow partition wall with full sound and heat insulation filling blocks is given. The prefabricated grid frame wall unit 2 is completely filled with sound and heat insulation filling blocks 5. The single-layer narrow partition wall in this embodiment is relatively thin, which can serve as a lightweight partition and decoration, and also has a certain rigidity.

[0060] like Figure 10 As shown, an embodiment of a single-layer wide partition wall with partial sound and heat insulation filling blocks is given. The wall is partially filled with sound and heat insulation filling blocks 5 inside the prefabricated grid frame wall unit 2. The single-layer wide partition wall in this embodiment is relatively thick, which can effectively improve the load-bearing capacity and seismic resistance of the structure.

[0061] like Figure 11As shown, an embodiment of a double-layer sandwich partition wall without sound insulation and heat insulation filler blocks is given. It does not have sound insulation and heat insulation filler blocks 5. The double-layer sandwich partition wall is composed of two prefabricated grid frame wall units 2 with sound insulation and heat insulation partitions 4 added between them, which further improves the sound insulation and heat insulation capabilities of the wall.

[0062] like Figure 12 As shown, an embodiment of a single-layer framed wall with a single-layer core panel partition and no sound or heat insulation filling block is presented. This single-layer framed wall with a single-layer core panel partition consists of a prefabricated lattice-type framed wall unit 2 and a sound and heat insulation partition 4. It provides good sound and heat insulation while being thinner and lighter. In practical projects, owners and developers can flexibly choose the function of the wall according to different needs. For example, a high-strength double-layer sandwich partition wall can be used in the partition walls of newly built structures, providing good heat and sound insulation.

[0063] Example 2

[0064] When prefabricated frame wall units are needed to improve the load-bearing capacity and seismic resistance of structures and components, a suitable prefabricated lattice frame wall unit 2 reinforcement scheme can be selected according to the actual reinforcement requirements. For example, if the inter-story lateral stiffness is insufficient, several lattice walls can be added for reinforcement. If the required stiffness increase is too large, the stiffness requirements can be met by adjusting the width of the columns 4-1 and the number of beams 4-2. For reinforcement situations where the load-bearing capacity of local beams is insufficient, if the load-bearing capacity of the upper beam is insufficient, the prefabricated assembled multi-functional lattice infill wall can be directly installed under the beam for support; if the load-bearing capacity of the lower beam is insufficient, a high-strength concrete continuous slab with a height of 100mm-200mm should be pasted first, and then the prefabricated assembled multi-functional lattice infill wall of appropriate size should be installed.

[0065] Example 3

[0066] This embodiment discloses an installation method for a prefabricated reversible assembled multifunctional grid infill wall, including the following steps:

[0067] S01. Transport the prefabricated grid frame wall unit 2 indoors and assemble it according to the usage requirements of the prefabricated multi-functional grid infill wall;

[0068] S02. Based on the location and size of the reserved holes 4-3 in the prefabricated lattice frame wall unit 2, drill holes 6-1 in the corresponding parts of the beams and columns of the room;

[0069] S03. Move the prefabricated lattice frame wall unit 2 to the predetermined position, bolt it at the connection position using the connecting anchor bolt 3, insert the pipe line at the reserved hole 4-3 position, and attach the grooved self-adhesive cover plate 7.

[0070] S04. Further construction of the assembled prefabricated lattice frame wall is carried out based on actual usage conditions:

[0071] A. When the grid space is needed, only the surface layer of the ordinary frame wall unit 2-1 is decorated, and no further filling is required;

[0072] B. When it is necessary to improve the sound insulation and heat insulation performance, apply non-polluting inorganic adhesive to the inner wall of the grid, and then fill it with sound insulation and heat insulation filler blocks 5 of the same thickness;

[0073] C. When the infill wall only needs to hang relatively light items, foamed concrete should be used for infill;

[0074] D. When the infill wall needs to hang heavy items such as wall cabinets, it can be anchored directly through the reserved holes 4-3, or solid bricks can be locally built in the grid space to improve its load-bearing capacity.

[0075] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A prefabricated reversible assembled multi-functional grid infill wall, characterized in that, The system includes prefabricated lattice frame wall units, connecting anchors, hard rubber sheets, and grooved self-adhesive cover plates. Each prefabricated lattice frame wall unit has several reserved holes and reserved hole slots. Adjacent prefabricated lattice frame wall units are connected by bolts. The connecting anchors pass through the reserved holes of the prefabricated lattice frame wall units and are connected to the external wall beams and columns. The grooved self-adhesive cover plates are placed on the reserved hole slots. The hard rubber sheets are placed in the gaps between the prefabricated lattice frame wall units and the external wall beams and columns. It also includes sound and heat insulation partitions, which are set on one side of the prefabricated lattice frame wall unit or between two prefabricated lattice frame wall units. The sound and heat insulation partitions are made of a whole metal plate or a sandwich sound insulation material plate. It also includes sound and heat insulation filling blocks, which are installed in the lattice of the prefabricated lattice frame wall unit; The grooved self-adhesive cover has a cable conduit inside. The groove opening of the grooved self-adhesive cover is larger than the diameter of the conduit. Self-adhesive is provided at both ends of the groove opening. One side of the grooved self-adhesive cover is divided into sections that can be flipped. After the conduit is inserted into the pipe in the reserved hole, the grooved self-adhesive cover is pasted onto the crossbeam at the grid space, turning the conduit from visible to hidden.

2. The prefabricated reversible assembled multi-functional grid infill wall according to claim 1, characterized in that, The prefabricated lattice frame wall unit includes a common frame wall unit, which consists of left and right columns and multiple layers of horizontal beams. The reserved slots are set on the surfaces of the left and right columns and horizontal beams, and the reserved holes are set in the reserved slots. The reserved holes are countersunk holes.

3. A prefabricated reversible assembled multifunctional grid infill wall according to claim 2, characterized in that, The height of the ordinary frame wall unit is 1 / 3 to 2 / 3 of the floor height; the thickness is ≥80mm and less than the column width, and the width is 0.6m to 1.5m.

4. A prefabricated reversible assembled multifunctional grid infill wall according to claim 2, characterized in that, The width of the left and right uprights is 80mm to 300mm, and the height of the crossbeam is 60mm to 120mm.

5. A prefabricated reversible assembled multifunctional grid infill wall according to claim 2, characterized in that, It also includes a door frame unit and a window frame unit. The door frame unit has reserved door and window openings. The door frame unit and the window frame unit are fitted into the door and window openings. The window frame unit is a rectangular frame with reserved holes on the frame. The door frame unit is a П-shaped frame with the bottom sealed by a metal plate. The metal plate has reserved holes for fixing bolts.

6. A prefabricated reversible assembled multifunctional grid infill wall according to claim 2, characterized in that, The materials used for the prefabricated lattice frame wall units are fiber concrete, reinforced concrete, steel profiles, aluminum alloy, or wood.

7. The installation method of a prefabricated reversible assembled multifunctional grid infill wall according to any one of claims 2-6, characterized in that, Includes the following steps: S01. Transport the prefabricated lattice frame wall unit indoors and assemble it according to the usage requirements of the prefabricated multi-functional lattice infill wall. S02. Drill holes in the corresponding parts of the beams and columns of the room according to the location and size of the reserved holes in the prefabricated lattice frame wall unit; S03. Move the prefabricated lattice frame wall unit to the predetermined position, bolt it at the connection position using connecting anchors, insert pipes and pipelines at the reserved hole positions, and attach the grooved self-adhesive cover plate. S04. Further construction of the assembled prefabricated lattice frame wall is carried out based on actual usage conditions: A. When a grid-like space is needed, only the surface layer of the ordinary frame wall unit is decorated, and no further filling is required; B. When it is necessary to improve the sound insulation and heat insulation performance, apply non-polluting inorganic adhesive to the inner wall of the grid, and then fill it with sound insulation and heat insulation filler blocks of the same thickness. C. When the infill wall only needs to hang relatively light items, foamed concrete should be used for infill; D. When the infill wall needs to hang wall cabinets or other heavy items, it can be directly anchored through the reserved holes, or solid bricks can be locally laid in the grid space to improve its load-bearing capacity.

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