Construction method of fabricated decorative shared wall

Abstract

The invention relates to the technical field of building decorative walls, and particularly discloses a construction method of an assembly type decorative shared wall, which comprises three steps of factory modular prefabrication production, field installation and lossless disassembly and assembly and recombination. A factory adopts a steel plate component assembling mold to form a gel coat outer layer, silica powder cellulose foaming cement is filled and maintained, a cavity, a gel coat surface layer and silica powder cellulose foaming cement are formed through steel plate injection, and finally a finished wallboard with concave-convex structures on the two sides and an inner through oval pipeline is manufactured. Heaven and earth components are positioned and installed on site through infrared rays, the wallboards are assembled in a sliding and meshed mode through a mortise and tenon joint structure, water, electricity and circulating air systems are integrated in internal pipelines, component installation grooves are reserved in the wallboards, and the wallboards can be reused in a lossless mode during disassembly and assembly. The problems that a traditional partition wall is long in construction period, large in waste, high in transformation destructiveness, irreversible, low in integration degree and the like are solved, the technical effects of efficient construction, environment friendliness and flexible layout can be achieved, and the partition wall is suitable for various building decoration indoor partition wall projects.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building decorative partition technology, specifically relating to a construction method for prefabricated decorative shared walls. It is applicable to the construction and renovation of interior partitions in various civil, office and public buildings, and can realize factory prefabrication, dry installation, functional integration, non-destructive disassembly and assembly and recycling. Background Technology

[0002] Currently, in the building decoration industry, interior partition wall construction mostly employs wet masonry and plastering techniques, which suffers from problems such as cumbersome procedures, long cycles, significant material waste, and abundant construction waste. Water and electricity pipelines require on-site trenching, which can easily damage the wall structure and makes repairs inconvenient. Secondary renovations often involve destructive demolition, resulting in poor spatial layout flexibility. Existing prefabricated partition walls suffer from insufficient splicing precision, low node reliability, and low functional integration, making it difficult to achieve truly non-destructive assembly and disassembly and reuse. Therefore, this invention provides a prefabricated decorative shared wall system and construction method that features integrated molding, precise mortise and tenon joints, functional integration, and flexible reconfigurability. Summary of the Invention

[0003] This invention aims to overcome the shortcomings of existing technologies and provide a construction method for prefabricated decorative shared walls. It realizes modular prefabrication of walls in factories, rapid dry installation on site, precise splicing with mortise and tenon joints, and integrated water, electricity and ventilation systems. At the same time, it has the characteristics of non-destructive disassembly, reusability, and flexible and adjustable layout. It fundamentally solves the technical problems of traditional partition walls, such as long construction cycle, large material waste, strong destructiveness of renovation, and low functional integration.

[0004] A construction method for prefabricated decorative shared wall panels includes the following steps:

[0005] S1. Modular factory production: The wall cavity mold is assembled using steel plate components. The inner wall can have decorative textures. The outer layer of gel coat is formed first, and then silica micro powder cellulose foamed cement is poured in to form the wall. The wall panel has a through elliptical pipe inside for water and electricity lines and fresh air system.

[0006] S1.1 Mold preparation: Steel plate molds matching the design specifications are used. Each set consists of a negative mold, a positive mold, top and bottom component molds, an elliptical steel pipe and snap-fit ​​components.

[0007] S1.2 Gelcoat Coating Molding: Clean the mold and spray release agent, assemble it on the flipping worktable; inject ultrafine calcium silicate cement and silica fume cellulose gelcoat, flip at 5~8 revolutions / minute to make the gelcoat adhere evenly, solidify to form a 2-4mm thick gelcoat outer layer;

[0008] S1.3, Filling and Curing of Foamed Silica Cellulose Cement: Lightweight foamed silica cellulose cement is poured into the gelcoat cavity. The density of the non-load-bearing wall is 180–200 kg / m³, and that of the load-bearing wall is 250–300 kg / m³. The entire component is then statically pre-cured for 2–4 hours to allow the foamed silica cellulose cement to solidify. It is then placed in a high-pressure steam curing kiln for a high-temperature, high-pressure steam curing reaction. The temperature is controlled at 170–190℃, and the pressure at 1.0–1.2 MPa for 6–10 hours. The moisture content is ≤10%, resulting in a high-strength, high-stability, sound-insulating, heat-insulating, and high-density high-quality wall.

[0009] S2. On-site installation:

[0010] S2.1 Infrared positioning and layout to determine the installation positions of the top and bottom components;

[0011] S2.2. Expansion tubes and structural adhesive are used to fix the top and bottom components to form an assembly support structure;

[0012] S2.3 Install the finished wall panel on the top and bottom components, and complete the assembly by relying on the mortise and tenon joints formed by the grooves and protrusions on the left and right sides of the wall panel;

[0013] S2.4. Water and electricity pipelines and circulating air system are laid through the elliptical pipes inside the wall panel. The wall panel is reserved with component installation grooves to achieve hidden installation of ceiling and furniture slots.

[0014] S3. Disassembly and Reassembly: When the wall needs to be adjusted, the wall panels can be disassembled without damage, transferred to a new location and reassembled, realizing the change of spatial layout and the recycling of the wall.

[0015] Preferably, the inner wall of the steel plate mold in S1.1 has a decorative texture, which can directly form the decorative layer on the surface of the wall panel;

[0016] The rotation speed of the flipping device in S1.2 is 5-8 revolutions per minute, and the gel coat layer thickness is 2-4 mm;

[0017] The elliptical pipe in S1.3 has a specification of 80mm×60mm, with both ends extending 25mm beyond the wall panel. The groove and protrusion have a semi-elliptical cross-section, and the gap between the groove and protrusion after assembly is 3–5mm.

[0018] Preferably, in S2.3, the upper part of the recessed groove is inclined upward at 35° and the lower part of the protrusion is inclined upward at 35°, while the lower part of the recessed groove is inclined downward at 35° and the upper part of the protrusion is inclined downward at 35°. The assembled concave and convex blocks form a permanent sliding tenon and mortise structure, ensuring a long-lasting and tight fit at the joints.

[0019] Preferably, S3 uses a special lifting tool to smoothly lift the wall panel, achieving non-damaging disassembly and repeated assembly.

[0020] A prefabricated decorative shared wall system includes prefabricated wall panels and top and bottom components. The left side of the wall panel is the sunny side and the right side is the shady side. The sunny and shady sides are provided with matching inclined grooves and protrusions to form a mortise and tenon sliding connection structure. The wall panel has multiple vertically connected elliptical pipes inside for integrating water and electricity pipelines and a circulating air system. The wall panel is made of a gel coat outer layer and silica fume foamed cement. The wall panel has reserved component installation grooves. The mold is integrally formed for door openings, windows and door and window frames, which are suitable for ceiling and home card slot-type hidden installation.

[0021] Preferably, the groove and protrusion adopt an inclined sliding tenon and mortise structure, which automatically closes and seals the joints after assembly; the wall panel can be disassembled and reused without damage.

[0022] Preferably, the wall panel has pre-reserved openings and component installation slots; the mold has pre-reserved door openings, windows and door / window frames, which are directly generated, and the furniture and ceiling are installed in a hidden slot type without the need for additional on-site construction.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. Highly efficient construction: Factory prefabrication and dry construction significantly shorten the construction period and simplify procedures;

[0025] 2. Green and environmentally friendly: No dust-free construction waste, low material loss, and meets low-carbon requirements;

[0026] 3. Functional integration: The internal piping is integrated with water, electricity and fresh air systems, requiring no trenching and maintaining a complete structure;

[0027] 4. Reliable connection: The inclined tenon and mortise joints allow for permanent sliding, resulting in tight and durable joints without gaps.

[0028] 5. Flexible and reversible: Non-destructive disassembly and reassembly, adaptable to frequent space modifications;

[0029] 6. Integrated decoration: The decorative surface and door / window openings are molded together, eliminating the need for secondary construction;

[0030] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of the finished wall panel of the present invention;

[0032] Figure 2 This is a schematic diagram of the front structure of the finished wall panel of the present invention;

[0033] Figure 3 This is a schematic diagram of the (right) negative side structure of the finished wall panel of the present invention;

[0034] Figure 4 This is a schematic diagram of the sun-facing structure of the finished wall panel (left side) of the present invention;

[0035] Figure 5 This is a top view of the front side of the finished wall panel of the present invention;

[0036] Figure 6 This is a top view of the wall panel assembly of the present invention;

[0037] Figure 7 This is a cross-sectional view of the connection between the wall panel and the top and bottom components of the present invention;

[0038] Figure 8 This is a side view of the wiring system layout of the wall panel and ceiling / ceiling components of the present invention;

[0039] Figure 9 This is a top view of the corner of the wall panel of the present invention;

[0040] Figure 10 This is a schematic diagram of the connection between the wall panel and the ceiling slot of the present invention;

[0041] In the diagram: 1—shaded side, 2—groove, 3—protrusion, 4—elliptical pipe, 5—sunny side, 6—wall panel. Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 the present invention.

[0043] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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.

[0044] For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other;

[0045] like Figures 1-10 As shown, a construction method for a prefabricated decorative shared wall includes the following steps:

[0046] S1 Factory Modular Production:

[0047] S1.1 Mold Preparation: Prepare a wall with dimensions of 2600~3000mm (height) × 300~1200mm (width) × 30~120mm (thickness). The mold is made of 4Cr13 stainless steel plate with a hardness of HRC28–32. The inner wall can be engraved with decorative textures and patterns. The mold is divided into a negative mold, a positive mold, and a top and bottom component mold. They are combined to form a wall panel with 6 cavities, with upper and lower elliptical steel tubes arranged inside.

[0048] S1.2 Gelcoat Coating Molding: Clean the mold and spray release agent, assemble it on the flipping worktable; inject ultrafine calcium silicate cement and gelcoat outer layer, flip at 5~8 revolutions / minute to make the gelcoat adhere evenly, and solidify to form a 2-4mm thick gelcoat outer layer;

[0049] S1.3 Filling and curing of silica fume cellulose foamed cement: Fill the cavity with silica fume cellulose foamed cement. The density of non-load-bearing walls is 180–200 kg / m³, and that of load-bearing walls is 250–300 kg / m³. Curing is carried out in an environment of 35–40℃ and 60% humidity for 3 days until the moisture content is ≤10%, thus forming the wall and ceiling components.

[0050] S2.3, the right side of wall panel 6 is the yin side 1, and the left side is the yang side 5. The concave and convex parts on both sides are arranged in an interlocking manner, with the protrusions 3 spaced 200mm apart. The groove 2 has a cross-section of 35mm x 60mm semi-elliptical concave shape and a height of 130mm. The protrusion 3 has a cross-section of 30mm x 55mm semi-elliptical column and a height of 50mm. The upper part of groove 2 on the yin side 1 is inclined upward at 35°, and the lower part of protrusion 3 is inclined upward at 35°. The lower part of groove 2 on the yang side 5 is inclined downward at 35°, and the upper part of protrusion 3 is inclined downward at 35°. The gap between the concave and convex parts is 3–5mm. An 80mm x 60mm elliptical pipe is arranged inside, extending 25mm from both ends of wall panel 6. The dimensions of the top and bottom components are 2400~3000mm (length) x 30~120mm (width) x 80~100mm (height).

[0051] S2. On-site installation:

[0052] S2.1 Infrared positioning and layout to determine the installation benchmark for the top and bottom components;

[0053] S2.2. Use M8 expansion tubes in conjunction with neutral silicone structural adhesive to horizontally fix the top and bottom components to the ground;

[0054] S2.3. Start installing the first wall panel 6 from the corner of the wall. Use structural adhesive to fix the frame. Assemble the panels sequentially using mortise and tenon joints to ensure the verticality of the wall.

[0055] S2.4. Electrical wires, water supply pipes and fresh air ducts are laid through the internal elliptical pipe 4; the wall panel 6 has reserved component installation grooves to achieve concealed installation of the ceiling and home cabinets in a slotted manner, without the need for additional on-site construction;

[0056] S3. Disassembly and Reassembly: When adjusting the spatial layout, use a special lifting tool to lift the wall panel 6 smoothly from the bottom, so that the mortise and tenon structure is separated and the disassembly is completed without damage. The disassembled wall panel 6 is transported to a new position and reassembled to form a new partition wall layout, realizing recycling.

[0057] A prefabricated decorative shared wall system includes prefabricated wall panels 6 and top and bottom components; the left side of the wall panel 6 is a sunny side 5 and the right side is a shady side 1, and the sunny and shady sides 5 are provided with mutually matching inclined grooves 2 and protrusions 3 to form a mortise and tenon sliding connection structure; the interior of the wall panel 6 is provided with multiple vertically penetrating elliptical pipes 4 for integrating water and electricity pipelines and circulating air system; the wall panel 6 is composed of a gel coat outer layer and silica fume foamed cement, and the wall panel 6 has reserved component installation grooves, and the mold is integrally formed with door openings, windows and door and window frames, which are suitable for ceiling and home card slot-type hidden installation.

[0058] Specifically, the groove 2 and the protrusion 3 adopt an inclined sliding tenon and mortise structure, which automatically closes and seals the joints after assembly; the wall panel 6 can be disassembled and reused without damage.

[0059] Specifically, the wall panel 6 has a pre-reserved opening (not yet shown on the drawings) and component installation slots (such as...). Figure 10 The mold has pre-reserved door openings, windows and door and window frames, which are generated directly. At the same time, furniture and ceiling are installed in a hidden slot, without the need for additional on-site construction.

[0060] Example

[0061] This embodiment describes the construction of office partition walls in an office building. First, the specifications of wall panel 6 are measured and determined on-site, and the materials are delivered. Then, an infrared level is used to determine the cross centerline and installation position. Next, M8 expansion tubes are used in conjunction with neutral silicone structural adhesive to fix the top and bottom components. Then, wall panels 6 are installed in sequence. The water, electricity, and fresh air systems can be installed through internal pipes before leaving the factory or during on-site installation. Finally, after each section of the wall is installed, the upper top and bottom components are fixed to the top surface to complete the overall construction.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A construction method of an assembled decorative shared wall body, characterized in that, The method comprises the following steps: S1, factory modular production: using steel plate components to assemble wall cavity mold, inner wall can be with decorative texture, first forming the outer layer of gel coat, then pouring silica powder cellulose foamed cement to form wall; the wallboard is internally provided with through elliptical pipeline for water and electricity lines and fresh air system; S1.1, preparing mold: using steel plate mold matching design specifications, each set is composed of negative mold, positive mold, heaven and earth component mold, elliptical steel pipe and buckle parts; S1.2, gel coat forming: cleaning the mold and spraying release agent, assembling on the turnover workbench; injecting ultra-fine calcium silicate cement and silica powder cellulose gel coat, turning at 5-8 revolutions per minute to make the gel coat evenly adhere, and solidifying to form a 2-4mm thick gel coat outer layer; S1.3, silica powder cellulose foamed cement pouring and curing: pouring light silica powder cellulose foamed cement into the gel coat cavity, the density of non-load-bearing wall is 180-200kg / m³, and the density of load-bearing wall is 250-300kg / m³; the whole component is statically pre-cured for 2-4 hours to make the silica powder cellulose foamed cement form, and then is sent into a high-pressure steam curing kiln to perform high-temperature and high-pressure steam reaction, the temperature is controlled at 170-190℃, the pressure is 1.0-1.2MPa, and the time is 6-10 hours. The water content is less than or equal to 10%, and high-strength, high-stability, sound insulation, heat preservation and high-density high-quality wall is formed; S2, on-site installation: S2.1, infrared positioning and line laying, determining the installation position of the heaven and earth component; S2.2, using expansion pipe and structural adhesive to fix the heaven and earth component to form an assembly support structure; S2.3, installing the finished wallboard on the heaven and earth component, and relying on the left negative and right positive face grooves and protrusions on both sides of the wallboard to form a mortise and tenon sliding fit to complete the assembly; S2.4, arranging water and electricity pipelines and circulating air system through the elliptical pipeline in the wallboard, and realizing the hidden installation of the ceiling and home card slot type through the reserved component installation groove of the wallboard; S3, disassembly and recombination: when the wall needs to be adjusted, the wallboard is disassembled without damage, transferred to a new position and reassembled to realize space layout adjustment and wall recycling.

2. The construction method of a fabricated decorative shared wall body according to claim 1, characterized in that, The inner wall of the steel mold in S1.1 is provided with decorative texture, which can directly form the surface decorative layer of the wallboard; The rotation speed of the turnover equipment in S1.2 is 5-8 revolutions per minute, and the thickness of the gel coat layer is 2-4mm; The specification of the elliptical pipeline in S1.3 is 80mm×60mm, the two ends of the elliptical pipeline exceed the wallboard by 25mm, the cross section of the groove and the protrusion is half-elliptical, and the gap between the concave and convex assembly is 3-5mm.

3. The construction method of a fabricated decorative shared wall body according to claim 1, characterized in that, In S2.3, the upper part of the negative groove is inclined upward by 35°, the lower part of the protrusion is inclined upward by 35°, the lower part of the positive groove is inclined downward by 35°, and the upper part of the protrusion is inclined downward by 35°, the assembly concave and convex block is a permanent sliding mortise and tenon structure, and the joint is tight.

4. The construction method of a fabricated decorative shared wall body according to claim 1, characterized in that, In S3, special lifting tools are used to smoothly lift the wallboard to realize damage-free disassembly and repeated assembly.

5. A prefabricated decorative shared wall body for implementing the method according to any one of claims 1-4, characterized in that, It includes finished wallboard and heaven and earth components; the left side of the wallboard is the sun side, the right side is the yin side, the yin and yang sides are provided with mutually matched inclined grooves and protrusions, forming a mortise and tenon sliding connection structure; the wallboard is internally provided with a plurality of upper and lower through elliptical pipelines for integrated water and electricity pipelines and circulating air system; the wallboard is composed of a rubber-coated outer layer and a silicon micro powder cellulose foamed cement, the wallboard is provided with a component installation groove, a mold integrally formed door hole, window and door and window sleeve, and is suitable for suspended ceiling and home slot type hidden installation.

6. The prefabricated decorative shared wall body according to claim 5, characterized in that, The grooves and protrusions adopt an inclined sliding mortise and tenon structure, which is automatically tight after assembly and the joint is airtight; the wallboard can be disassembled and reused without damage.

7. The prefabricated decorative shared wall body according to claim 5, characterized in that, The wallboard is provided with a reserved port and a component installation groove; the mold is provided with a reserved door hole, window and door and window sleeve, which are directly generated, and the home and suspended ceiling slot type hidden installation is not required to be additionally constructed on site.

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