A lightweight thermal insulation wall system and construction method thereof

Abstract

The present invention belongs to the field of building engineering technology, and specifically relates to a lightweight thermal insulation wall system and a construction method thereof, wherein the wall system comprises a transverse keel connected to a floor slab and a ground; a central truss, which is composed of a crisscross steel bar unit array, wherein the steel bar unit is corrugated and has a wave crest; and sound-absorbing cotton, thermal insulation cotton, vertical keel and flame-retardant board arranged in sequence between the side of the central truss and the transverse keel; the construction method comprises the following steps: step one, truss production; step two, transverse bracing keel installation; step three, truss installation; step four, internal accessory installation; step five, vertical bracing keel installation; step six, external accessory installation. The present invention can greatly improve the overall structural strength of the wall, significantly improve its load-bearing capacity, and at the same time, while improving the thermal insulation and sound insulation performance of the wall, it can strengthen the internal ventilation of the wall to prevent the internal material from rotting.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering, and particularly relates to a lightweight thermal insulation wall system and a construction method thereof. Background Art

[0002] Lightweight steel frame wall is a common lightweight insulation wall, which is mainly used for internal partition walls of residential buildings, office buildings, hotels and other buildings. Due to its easy construction characteristics, it is widely used in modern buildings. The existing lightweight steel frame wall is generally composed of the following components:

[0003] Floor and ceiling purlins: horizontal purlins located at the top and bottom of the partition wall, which serve as partitions and fixation.

[0004] Vertical purlin: The vertically installed purlin constitutes the main structure of the partition wall and is divided into single row, double row and multiple rows.

[0005] Horizontal through-rib: used to enhance the overall stability of the partition wall and connect multiple vertical ribs.

[0006] Board: Covered on both sides of the light steel keel, such as gypsum board, cement pressure board, etc., to form the wall surface.

[0007] Filler: Insulation material filled between light steel keels, such as rock wool, glass wool, etc.

[0008] However, the above-mentioned light steel keel wall has the following shortcomings when used:

[0009] 1. The structure is relatively simple, and the wall is formed by simply building horizontal and vertical keels. The structural stability is poor and the load-bearing capacity is weak. It cannot be used in a supporting environment that requires a larger load-bearing capacity and cannot meet the requirements of use in multiple scenarios.

[0010] 2. Since the wall is mainly formed by metal keels and external panels, its overall sound insulation, flame retardancy and thermal insulation performance cannot be well guaranteed. Although it can be improved by filling, there is still a lot of room for improvement. In addition, the thermal deformation variables of different materials will also vary greatly in an environment with large temperature differences. Therefore, gaps on the wall surface can easily form due to deformation.

[0011] 3. Since there are many filling materials inside the wall, and most of them are porous materials, it is easy for moisture to accumulate inside the wall in a relatively humid environment, causing high humidity inside the wall, which will cause the internal filling materials to rot, the wall to gradually damage and produce odor, affecting the user's living quality. Summary of the invention

[0012] The purpose of the present invention is to provide a lightweight thermal insulation wall system and a construction method thereof, which can utilize a truss structure to greatly improve the overall structural strength of the wall and significantly improve its load-bearing capacity. At the same time, it is combined with sound insulation and thermal insulation materials to form a ventilation layer. While improving the thermal insulation and sound insulation performance of the wall, it can enhance the internal ventilation of the wall and prevent the internal materials from rotting.

[0013] The technical solution adopted by the present invention is as follows:

[0014] A lightweight thermal insulation wall system, comprising:

[0015] The transverse keels connected to the floor slab and the ground, of which the top keels are connected to the floor slab, and the ground keels are connected to the ground;

[0016] A central truss installed between the top keel and the ground keel, which is composed of a crisscross array of steel bar units, wherein the steel bar units are corrugated and have wave crests, and the vertical and horizontal intersections of the steel bar units are the apex of the wave crests;

[0017] And, sound-absorbing cotton, heat-insulating cotton, vertical keels and flame-retardant panels are sequentially arranged between the side of the central truss and the transverse keel;

[0018] Wherein, a protrusion is integrally formed on the sound-absorbing cotton, and the protrusion is embedded in the intersection depression of the wave crest;

[0019] The vertical keels are arranged in a horizontally equidistant array between the top keel and the ground keel, and a ventilation layer is formed between the thermal insulation cotton and the flame retardant board;

[0020] By utilizing crisscrossing steel bar units, complete lateral and vertical supports are formed in the internal space formed by the transverse and vertical keels. At the same time, the sound-absorbing cotton fits the central truss as a whole to buffer the deformation between different materials, and is combined with thermal insulation cotton and flame-retardant panels to provide strict thermal insulation, sound insulation and flame-retardant properties.

[0021] As a preferred solution, it also includes an exterior decorative panel, which is fixedly installed on the side surfaces of the top keel and the ground keel.

[0022] As a preferred solution, both ends of the steel bar unit are bent to form elbows, and connecting holes corresponding to the elbows are opened on the transverse keel, and the elbows are embedded in the connecting holes.

[0023] As a preferred solution, the protrusion is conical or pyramidal, and the side is parallel to the hypotenuse of the wave crest and fits therewith, and the top of the protrusion abuts against the intersection of the apexes of the wave crest.

[0024] As a preferred solution, a glass fiber mesh cloth is attached between the sound-absorbing cotton and the heat-insulating cotton by glue.

[0025] As a preferred solution, the vertical keel is in a "J" shape, and the end is fixedly connected to the horizontal keel by self-tapping screws. The vertical keel, the flame retardant board and the exterior panel are also fixedly connected together by self-tapping screws.

[0026] As a preferred solution, both ends of the outer side surface of the flame retardant board are provided with connection grooves, the side edges of the transverse keels are embedded in the connection grooves, and the exterior decorative panel is in contact with the outer side surface of the flame retardant board.

[0027] As a preferred solution, the installation gap between the central truss and the sound-absorbing cotton can also be filled with lightweight concrete.

[0028] As a preferred solution, the wall system has a thickness of 100 mm-240 mm.

[0029] A lightweight thermal insulation wall system construction method, applied to the above-mentioned lightweight thermal insulation wall system, comprises the following steps:

[0030] Step 1: Truss production: Bundle or weld crisscross steel bar units according to the required thickness, length and width of the wall. The bundling or welding position is the top of the wave crest, and bend opposite ends of the wave crest to form elbows of a certain length to form a central truss;

[0031] Step 2: Install the horizontal keel: Install the horizontal keel on the floor slab and the ground relatively with expansion bolts to form the top keel and the ground keel. At the same time, embed the rubber pad at the joint between the top surface of the horizontal keel and the floor slab and the ground during installation;

[0032] Step 3: Truss installation: embed the central truss between the top keel and the ground keel, align the elbow with the connection hole, embed it into the connection hole and weld it;

[0033] Step 4: Install the internal accessories: Place the raised side of the sound-absorbing cotton toward the center truss, and embed the raised side into the cross-depression of the wave crest to complete the attachment and installation with the center truss. At the same time, apply glue on the other side of the sound-absorbing cotton and stick the fiberglass mesh cloth. Then apply glue on the fiberglass mesh cloth and attach the thermal insulation cotton.

[0034] Step 5: Install the vertical support keel: Select a flame retardant board of the same length as the horizontal keel for assembly, and open connection grooves at both ends of its outer wall. At the same time, install the vertical keels horizontally and equidistantly between its inner walls through self-tapping screws. Then, embed the flame retardant board together with the vertical keel between the top keel and the ground keel, and embed the side of the horizontal keel into the connection groove. Then, use self-tapping screws to fix the ends of the vertical keel and the flame retardant board to the side wall of the horizontal keel.

[0035] Step 6. Installation of external accessories: Attach the exterior decorative panel between the outer walls of the top keel and the ground keel, and fix the exterior decorative panel to the vertical keel with self-tapping screws, and apply caulking paste at the connection gap between the floor slab and the ground, and then use a spray machine to fill lightweight concrete in the installation gap between the center truss and the sound-absorbing cotton.

[0036] The technical effects achieved by the present invention are:

[0037] The present invention utilizes corrugated steel bar units to cross-combine to form a central truss arranged inside the wall, and can utilize the steel bar units cross-arranged horizontally and vertically to provide horizontal and vertical support between two groups of exterior panels. Compared with the traditional horizontal brace and vertical brace structure, the horizontal braces and vertical braces of this structure are interconnected, and the fulcrums are cross-fitted between the two groups of exterior panels, so the support stability is higher and the support strength is greater. The support points are evenly distributed on the entire surface of the exterior panels, which greatly improves the lateral support. When the wall encounters a large impact, the overall integrity can be guaranteed, the structure is stable, and the impact resistance is stronger.

[0038] The present invention arranges sound-absorbing cotton, and arranges protrusions in an array on the sound-absorbing cotton, and fills the protrusions in the cross-depressions of the wave crests. While filling the structural gaps, the sound-absorbing cotton can be integrally fitted to the central truss to buffer the deformation between different materials, thereby avoiding deformation of the wall due to different expansion coefficients of different materials when the temperature difference is large. At the same time, the internal structure of the wall is fuller, voids are avoided, and the overall structure is more stable. Moreover, the wave crest structural characteristics of the sound-absorbing cotton and the protrusions can greatly improve the sound absorption performance, thereby further improving the sound insulation effect of the wall.

[0039] The present invention arranges glass fiber mesh cloth between the sound-absorbing cotton and the heat-insulating cotton, thereby improving the structural strength of the sound-absorbing cotton and the heat-insulating cotton as a whole, so that the sound-absorbing cotton and the heat-insulating cotton will not gradually weather even after long-term use or in harsh environments, thereby ensuring the overall structural strength of the wall as well as the heat-insulating and sound-proofing properties.

[0040] The present invention can form a ventilation layer inside the wall while improving the overall flatness of the wall by arranging a hidden flame retardant plate, so that the moisture inside the wall can be diffused outward through the ventilation layer, thereby preventing moisture from accumulating inside the wall for a long time and causing internal decay. The ventilation layer can further achieve a temperature isolation effect, and when heat is exchanged between the inside and outside of the wall, the air flowing in the ventilation layer can take away the heat, thereby isolating the heat exchange to a certain extent and improving the thermal insulation performance of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a cross-sectional view of an embodiment of the present invention;

[0042] Figure 2 The present invention Figure 1 A partial enlarged view of;

[0043] Figure 3 is an exploded view of an embodiment of the present invention;

[0044] Figure 4 is a side view of an embodiment of the present invention;

[0045] Figure 5 The present invention Figure 4 B is a partial enlarged view;

[0046] Figure 6 is a cross-sectional view of an embodiment of the present invention from above;

[0047] Figure 7 The present invention Figure 6 A partial enlarged view of C;

[0048] Figure 8 This is a schematic diagram of the combined structure of the central truss and the sound-absorbing cotton in an embodiment of the present invention;

[0049] Fig. 9 The present invention Figure 8 Exploded diagram of

[0050] Fig.10 It is a schematic diagram of a partial combined structure of a central truss and sound-absorbing cotton in an embodiment of the present invention;

[0051] Fig.11 The present invention Fig.10 A partial enlarged view of D;

[0052] Fig.12 is a schematic diagram of a partial combined structure of a steel bar unit according to an embodiment of the present invention;

[0053] Fig.13 It is a flow chart of the construction method of an embodiment of the present invention.

[0054] In the figure, the components represented by the reference numerals are as follows:

[0055] 1. Horizontal keel; 11. Connection hole; 2. Center truss; 21. Steel bar unit; 211. Wave crest; 212. Elbow; 3. Sound-absorbing cotton; 31. Protrusion; 4. Thermal insulation cotton; 5. Vertical keel; 6. Flame-retardant board; 61. Connection groove; 7. Exterior panel; 8. Ventilation layer. DETAILED DESCRIPTION

[0056] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0057] like Figure 1-Figure 12 As shown, a lightweight thermal insulation wall system includes a transverse keel 1 connected to the floor and the ground, a central truss 2 installed between the top keel and the ground keel, sound-absorbing cotton 3, thermal insulation cotton 4, vertical keels 5 and flame-retardant panels 6 arranged in sequence between the side of the central truss 2 and the transverse keel 1, and an exterior decorative panel 7 fixedly installed on the side of the top keel and the ground keel.

[0058] Specific reference Figure 3 and Figure 4 In the present embodiment, two groups of sound-absorbing cotton 3, thermal insulation cotton 4, vertical keels 5, flame-retardant panels 6 and exterior panels 7 are symmetrically arranged on both sides of the central truss 2; of course, in other embodiments, only one group of sound-absorbing cotton 3, thermal insulation cotton 4 and flame-retardant panels 6 may be arranged between the exterior panels 7, which may be selected according to the specific width and requirements of the wall.

[0059] Reference Figure 1 and Figure 4 Two groups of transverse keels 1 are provided, and in this embodiment, light steel keels are selected, among which the top keel is connected to the floor slab, and the ground keel is connected to the ground. They are relatively installed on the floor slab and the ground through expansion bolts. At the same time, rubber pads are embedded in the joints between the top surface of the transverse keel 1 and the floor slab and the ground to ensure the tightness of the connection. At the same time, the deformation of the transverse keel 1 under various environmental conditions can be buffered to avoid deformation of the wall due to its own deformation.

[0060] Reference Figure 4 , Fig. 9 as well as Fig.12The central truss 2 is composed of an array of criss-crossed steel bar units 21. The steel bar units 21 are corrugated and have crests 211. The vertical and horizontal intersections of the steel bar units 21 are the vertices of the crests 211. These intersections are evenly distributed and fit between the entire surface of the exterior panels 7. The central truss 2 is formed by the cross-combination of the corrugated steel bar units 21 to provide lateral and vertical support between the two groups of exterior panels 7, which greatly improves the lateral support. When the wall encounters a large impact, the overall integrity can be guaranteed, the structure is stable, and the impact resistance is stronger.

[0061] For further details, please refer to Figure 2 and Fig.12 Both ends of the steel bar unit 21 are bent to form elbows 212, and a connecting hole 11 is opened on the transverse keel 1 corresponding to the elbow 212. The elbow 212 can be embedded in the connecting hole 11 and welded to complete the connection between the central truss 2 and the transverse keel 1. While simplifying the installation, the stability of the connection between them is further enhanced.

[0062] Reference Figure 8-Figure 11 The sound-absorbing cotton 3 is integrally formed with protrusions 31, and the protrusions 31 are evenly arrayed on the sound-absorbing cotton 3. In this embodiment, the sound-absorbing cotton 3 is made of polyester fiber material. At the same time, the protrusions 31 are embedded in the cross-depressions of the wave crests 211 and fit therewith. The wave crest structural characteristics of the sound-absorbing cotton 3 and the protrusions 31 can be used to greatly improve the sound absorption performance of the wall and ensure the sound insulation performance of the building.

[0063] Specific reference Fig.11 In this embodiment, the protrusion 31 is a regular quadrangular pyramid, and its hypotenuse is parallel to the hypotenuse of the crest 211 and fits each other. The top of the steel bar unit 21 is in contact with the intersection of the vertices of the crest 211. By filling the protrusion 31 in the intersection of the crest 211, the sound-absorbing cotton 3 can be used to fit the central truss 2 as a whole to buffer the deformation between different materials while filling the structural gap, avoiding the deformation of the wall due to the different expansion coefficients of different materials when the temperature difference is large. At the same time, the internal structure of the wall is fuller, the formation of voids is avoided, and the overall structure is more stable.

[0064] Of course, in other embodiments, the protrusion 31 may be conical or other pyramidal, with the side parallel to the hypotenuse of the crest 211 and fit therewith, and the top of the protrusion 31 abuts against the intersection of the vertices of the crest 211 .

[0065] Reference Figure 3-Figure 5In this embodiment, the thermal insulation cotton 4 is made of polystyrene foam plastic, and a glass fiber mesh cloth is attached between the sound-absorbing cotton 3 and the thermal insulation cotton 4 by glue, which can improve the overall structural strength of the sound-absorbing cotton 3 and the thermal insulation cotton 4, so that it can provide a strong vertical support capacity, reduce its vertical deformation, and prevent it from gradually weathering even after long-term use and in harsh environments, thereby ensuring the overall structural strength of the wall as well as the thermal insulation and sound insulation performance.

[0066] Reference Figure 3 , Figure 6 as well as Figure 7 The vertical keels 5 are arranged equidistantly along the top keel and the ground keel, and are used to mount the flame retardant board 6 and the exterior decorative panel 7. The vertical keel 5 is in a "J" shape, and its side is attached to the surface of the flame retardant board 6. At the same time, the end is fixedly connected to the horizontal keel 1 by self-tapping screws, and the vertical keel 5, the flame retardant board 6 and the exterior decorative panel 7 are also fixedly connected together by self-tapping screws. Through the structural characteristics of the vertical keel 5, a gap with the same thickness as the vertical keel 5 can be retained between the insulation cotton 4 and the flame retardant board 6, thereby forming a ventilation layer 8, which is connected to the ventilation system of the house. The moisture inside the wall can be diffused outward through the ventilation layer 8 to avoid long-term use of moisture accumulating inside the wall and causing it to decay internally. The ventilation layer 8 can further play a temperature isolation effect, so that when heat is exchanged between the inside and outside of the wall, the air flowing in the ventilation layer 8 will be taken away, thereby isolating the heat exchange to a certain extent and improving the thermal insulation performance of the wall.

[0067] For further details, please refer to Figure 3 as well as Figure 5 Both ends of the outer side of the flame retardant board 6 are provided with connecting grooves 61. By embedding the side of the horizontal keel 1 into the connecting groove 61, the side surfaces of the horizontal keel 1 can be made smoother, so that the exterior panel 7 and the outer side of the flame retardant board 6 fit more closely, so that the outer side of the wall is smoother, and at the same time, the connection between the vertical keel 5, the flame retardant board 6 and the exterior panel 7 is more stable.

[0068] Reference Figure 1 as well as Figure 4 In other preferred embodiments, if it is necessary to further improve the structural strength and pressure-bearing performance of the wall, lightweight concrete can be filled in the installation gap between the central truss 2 and the sound-absorbing cotton 3 as needed, so as to further improve the overall structural strength, change the structural characteristics and features of the wall, and make it have better pressure-bearing performance.

[0069] In this embodiment, the flame retardant board 6 is a glass magnesium board, which can use its good water resistance to improve the moisture and water resistance of the wall and improve its corrosion resistance. At the same time, its bending strength further enhances the supporting performance of the wall; the exterior decorative panel 7 is a paper-faced gypsum board, which is convenient for decoration operations such as puttying and wallpapering on its surface.

[0070] Reference Figure 1 as well as Figure 4 In this embodiment, the thickness of the wall system is 180 mm; of course, in other embodiments, the thickness of the wall system can be set specifically as needed, and the center truss 2, sound-absorbing cotton 3, thermal insulation cotton 4, vertical keel 5, flame retardant board 6 and exterior panel 7 of appropriate thickness can be selected.

[0071] like Figure 1-Figure 13 As shown, a lightweight thermal insulation wall system construction method is applied to the above-mentioned lightweight thermal insulation wall system, comprising the following steps:

[0072] Step 1: Truss production: Bundle or weld crisscross steel bar units 21 according to the required thickness, length and width of the wall. The bundling or welding position is the top of the wave crest 211, and bend opposite ends of the wave crest 211 to form elbows 212 of a fixed length to form a central truss 2.

[0073] Step 2: Installation of transverse keels: Install the transverse keels 1 on the floor slab and the ground relatively through expansion bolts to form top keels and ground keels. At the same time, embed rubber pads at the joints between the top surface of the transverse keel 1 and the floor slab and the ground during installation.

[0074] Step 3: truss installation: embed the central truss 2 between the top keel and the ground keel, and align the elbow 212 with the connection hole 11, embed it into the connection hole 11 and weld it.

[0075] Step 4: Installation of internal accessories: Place the protrusion 31 of the sound-absorbing cotton 3 toward the central truss 2, and embed the protrusion 31 into the intersection depression of the wave crest 211 to complete the attachment and installation with the central truss 2. At the same time, apply glue on the other side of the sound-absorbing cotton 3 and stick the fiberglass mesh cloth. Then apply glue on the fiberglass mesh cloth to attach the thermal insulation cotton 4.

[0076] Step 5, installation of vertical support keels: select a flame retardant plate 6 of the same length as the horizontal keel 1 for assembly, and open connecting grooves 61 at both ends of its outer wall. At the same time, install vertical keels 5 horizontally and equidistantly between its inner walls through self-tapping screws, then embed the flame retardant plate 6 together with the vertical keel 5 between the top keel and the ground keel, and embed the side of the horizontal keel 1 into the connecting groove 61, and then use self-tapping screws to fix the ends of the vertical keel 5 and the flame retardant plate 6 to the side wall of the horizontal keel 1.

[0077] Step 6, installation of external accessories: attach the exterior panel 7 between the outer walls of the top keel and the ground keel, and fix the exterior panel 7 to the vertical keel 5 with self-tapping screws, and apply caulking paste on the gaps connecting the floor slab and the ground. Then, use a spray machine to fill the installation gap between the central truss 2 and the sound-absorbing cotton 3 with lightweight concrete according to actual needs.

[0078] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A lightweight thermal insulation wall system, characterized in that: include: Transverse keels (1) connected to the floor slab and the ground, wherein the keel connected to the floor slab is the top keel, and the keel connected to the ground is the ground keel; A central truss (2) installed between the top keel and the ground keel, which is composed of an array of crisscrossed steel bar units (21), wherein the steel bar units (21) are corrugated and have wave crests (211), and the vertical and horizontal intersection points of the steel bar units (21) are the apex of the wave crests (211); and, sound-absorbing cotton (3), heat-insulating cotton (4), vertical keels (5) and flame-retardant panels (6) arranged in sequence between the side of the central truss (2) and the transverse keel (1); Wherein, a protrusion (31) is integrally formed on the sound-absorbing cotton (3), and the protrusion (31) is embedded in the cross-depression of the wave crest (211); The vertical keels (5) are arranged in an equidistant array transversely between the top keel and the ground keel, and a ventilation layer (8) is formed between the thermal insulation cotton (4) and the flame retardant board (6); By utilizing the crisscrossed steel bar units (21), a complete transverse support and a complete vertical support are formed in the internal space formed by the transverse keel (1) and the vertical keel (5). At the same time, the sound-absorbing cotton (3) is integrally fitted to the central truss (2) to buffer the deformation between different materials, and is combined with the thermal insulation cotton (4) and the flame-retardant board (6) to provide strict thermal insulation, sound insulation and flame-retardant properties. It also includes an exterior decorative panel (7) which is fixedly mounted on the side surfaces of the top keel and the floor keel; The vertical keel (5) is in the shape of a Chinese character "J", and its end is fixedly connected to the horizontal keel (1) by means of self-tapping screws. The vertical keel (5), the flame retardant board (6) and the exterior decorative panel (7) are also fixedly connected together by means of self-tapping screws.

2. A lightweight thermal insulation wall system according to claim 1, characterized in that: The two ends of the steel bar unit (21) are bent to form elbows (212), and a connecting hole (11) is provided on the transverse keel (1) corresponding to the elbow (212), and the elbow (212) is embedded in the connecting hole (11).

3. A lightweight thermal insulation wall system according to claim 1, characterized in that: The protrusion (31) is in a conical or pyramidal shape, and its side is parallel to the hypotenuse of the wave crest (211) and fits therewith, and the top of the protrusion (31) abuts against the intersection of the vertices of the wave crest (211).

4. A lightweight thermal insulation wall system according to claim 1, characterized in that: A glass fiber mesh cloth is attached between the sound-absorbing cotton (3) and the heat-insulating cotton (4) by glue.

5. A lightweight thermal insulation wall system according to claim 1, characterized in that: Both ends of the outer side surface of the flame retardant plate (6) are provided with connection grooves (61), the side edges of the transverse keels (1) are embedded in the connection grooves (61), and the exterior decorative panel (7) is in contact with the outer side surface of the flame retardant plate (6).

6. A lightweight thermal insulation wall system according to claim 1, characterized in that: The installation gap between the central truss (2) and the sound-absorbing cotton (3) is filled with lightweight concrete.

7. A lightweight thermal insulation wall system according to claim 1, characterized in that: The wall system has a thickness of 100 mm to 240 mm.

8. A method for constructing a lightweight thermal insulation wall system, applied to a lightweight thermal insulation wall system according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Truss production: bundling or welding crisscrossed steel bar units (21) according to the required thickness, length and width of the wall, the bundling or welding position is the top of the wave crest (211), and bending the two ends of the wave crest (211) to form elbows (212) of a certain length to form a central truss (2); Step 2: Install the transverse keel: Install the transverse keel (1) on the floor slab and the ground relative to each other through expansion bolts to form a top keel and a ground keel. During installation, insert a rubber pad at the joint between the end surface of the transverse keel (1) and the floor slab and the ground. Step 3: truss installation: embed the central truss (2) between the top keel and the ground keel, align the elbow (212) with the connection hole (11), embed it into the connection hole (11) and weld it; Step 4: Install the internal accessories: Place the protrusion (31) of the sound-absorbing cotton (3) toward the central truss (2), and embed the protrusion (31) into the cross recess of the wave crest (211), and complete the attachment and installation with the central truss (2). At the same time, apply glue to the other side of the sound-absorbing cotton (3) and stick the glass fiber mesh cloth, then apply glue to the glass fiber mesh cloth and attach the thermal insulation cotton (4); Step 5, installation of vertical support keels: select a flame retardant plate (6) of the same length as the horizontal keel (1) for assembly, and open connection grooves (61) at both ends of its outer wall, and install vertical keels (5) horizontally and equidistantly between its inner walls by self-tapping screws, then embed the flame retardant plate (6) together with the vertical keel (5) between the top keel and the ground keel, and embed the side of the horizontal keel (1) into the connection groove (61), and then use self-tapping screws to fix the ends of the vertical keel (5) and the flame retardant plate (6) to the side wall of the horizontal keel (1); Step 6: Installation of external accessories: attach the exterior panel (7) between the outer side walls of the top keel and the ground keel, and fix the exterior panel (7) to the vertical keel (5) using self-tapping screws, apply caulking paste to the gaps connecting the floor slab and the ground, and then use a spraying machine to fill the installation gap between the central truss (2) and the sound-absorbing cotton (3) with lightweight concrete.

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