CN219060418U

CN219060418U - Light prefabricated composite heat-insulating external wall panel and wall structure

Info

Publication number: CN219060418U
Application number: CN202223380548.2U
Authority: CN
Inventors: 苗纪奎; 单后壮; 刘宏
Original assignee: Shandong Huasheng Prefabricated Construction Technology Co ltd; Shandong Jianzhu University
Current assignee: Shandong Huasheng Prefabricated Construction Technology Co ltd; Shandong Jianzhu University
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-23
Anticipated expiration: 2032-12-16

Abstract

The utility model provides a light prefabricated composite heat-insulating external wall panel and a wall structure, which relate to the technical field of heat-insulating building materials and adopt the following scheme: the light prefabricated composite heat-insulating external wall panel comprises a keel frame, a fireproof plate and a heat-insulating layer, wherein the fireproof plate is connected to the keel frame, the fireproof plate is positioned on the outer side of the keel frame, the heat-insulating layer is positioned on the outer side of the fireproof plate, and the keel frame, the fireproof plate and the heat-insulating layer are connected into a whole. The light composite heat-insulating external wall board is connected to the base layer wall body and located on the outer side of the base layer wall body. The other wall structure comprises the light prefabricated composite heat-insulating external wall panel and further comprises a steel frame column, wherein the composite heat-insulating external wall panel is arranged on the steel frame column and located on the outer side of the steel frame column, and the keel frame is connected to the steel frame column through a connecting component. Has the effects of light weight, convenient construction and good thermal property.

Description

Light prefabricated composite heat-insulating external wall panel and wall structure

Technical Field

The utility model relates to the technical field of heat-insulating building materials, in particular to a light prefabricated composite heat-insulating external wall panel and a wall structure.

Background

The assembled steel structure is mature in application in the field of building industry, and has become a trend of future building development. The outer wall is a main building envelope of a building, and the assembly degree plays a vital role in building industrialization. The wallboard applied to the assembled steel structure building at present mainly comprises a precast concrete sandwich panel, wherein the wallboard consists of an inner leaf concrete plate, an outer leaf concrete plate and a sandwich heat preservation layer, and the construction layers are compounded together in a flexible connecting piece, a reinforcing steel bar or concrete rib and the like. The inner leaf plate is used as a structural layer, the thickness is larger, the outer leaf plate plays a role in protecting the core plate, and the thickness is thinner than that of the inner leaf plate. The structural characteristics of the precast concrete sandwich panel determine that the panel seams are fewer, the strength, the fireproof performance and the durability are better, but the following problems exist at the same time:

(1) The self weight is great and is not cooperated with the steel structure. The wallboard is large in size, and the inner panel and the outer panel are made of concrete, so that the weight of a single component is large, inconvenience is brought to procedures such as hoisting and position adjustment of the wallboard, and the wallboard is not cooperated with the characteristics of light weight and high strength of a steel structure, so that the wallboard is not suitable for steel structure buildings, and particularly the development of high-rise steel structure buildings.

(2) The connector presents a technical bottleneck. Because the metal connecting piece is adopted between the inner leaf concrete plate and the outer leaf concrete plate, the carbon Fiber (FRP) connecting piece is adopted for the large plate of the precast concrete sandwich at present, the FRP material has low heat conductivity coefficient, is favorable for improving the whole heat insulation performance of the wallboard, but has the tensile elastic modulus of only 23 percent of steel, the shear strength of only 5-20 percent of the tensile strength of the steel, and the defects of high manufacturing cost, easy aging and the like.

(3) It is difficult to achieve complete line separation. Pipeline is laid in the precast concrete battenboard, the threading pipe is required to be pre-buried in factory prefabrication, the phenomenon that the threading pipeline is blocked often occurs in construction, and if quality problems occur in the later use process, the rectification and maintenance are difficult.

Disclosure of Invention

On one hand, the utility model provides and designs the light prefabricated composite heat-insulating external wall panel aiming at the problems that the wall panel in the prior art has large weight, is not matched with a steel structure and is difficult to completely separate pipelines. The adopted technical scheme is as follows: the utility model provides a light-duty prefabricated compound heat preservation side fascia, includes fossil fragments skeleton, PLASTIC LAMINATED and heat preservation, and the PLASTIC LAMINATED is connected on fossil fragments skeleton, and the PLASTIC LAMINATED is located the outside of fossil fragments skeleton, and the heat preservation is located the outside of PLASTIC LAMINATED, and fossil fragments skeleton, PLASTIC LAMINATED, heat preservation are connected as an organic whole and are formed compound heat preservation side fascia.

In the scheme, the keel framework paved with the fireproof plate is used as a base layer to bear the dead weight of the composite heat-insulating plate and wind load and earthquake load acted on the composite heat-insulating plate, the fireproof plate is positioned at the outer side of the keel framework, then the heat-insulating layer is arranged outside the fireproof plate, and the heat-insulating layer is uniform, so that the temperature field on the inner surface of the composite heat-insulating plate can be uniformly distributed to meet the thermal design requirement of the wallboard, and the construction mode that the heat-insulating material is filled in the framework in the prior art is not adopted; the construction mode of the light steel keel prefabricated composite heat-insulating board can enable the light steel keel prefabricated composite heat-insulating board to be manufactured and molded in a factory, the construction site is directly assembled, the installation efficiency is greatly improved, the self weight of the wallboard is greatly reduced by the arrangement mode of taking the keel framework for paving the fireproof board as a base layer, the wallboard is convenient to hoist and mount and position adjust, and when the light steel keel prefabricated composite heat-insulating board is applied to a steel structure building, the structure of the inner keel framework is more convenient to connect with a steel structure relative to a concrete structure, and the light steel structure light high-strength characteristic can be cooperated with the steel structure. And, through making fossil fragments skeleton be located innermost, the threading pipe can be arranged in fossil fragments skeleton, and the skeleton texture is convenient for the rectifying maintenance in threading pipe arrangement and the work progress.

Further, the outside of the heat preservation is provided with a protective layer, and the protective layer is compounded on the heat preservation. The protective layer is a rubber powder polyphenyl particle heat-insulating slurry or vitrified micro bubble heat-insulating slurry protective layer, the combustion performance grade of the slurry is not lower than A2 grade, the slurry is poured on the upper surface of the heat-insulating layer and pressed into alkali-resistant glass fiber mesh cloth, and the thickness of the protective layer is 20mm to 50mm. The A-level heat-insulating slurry is used as a protective layer to meet the fireproof requirement.

Further, the fireproof plate is paved on the outer side surface of the keel frame to form a base layer of the whole composite heat-insulation external wall board, fillers such as heat-insulation materials are not required to be filled in the keel frame, layering is clear, the keel frame accommodates a larger space, and wiring, installation, connection and other operations are facilitated. The fireproof plate is fixed on the keel frame through a connecting piece, and the connecting piece is preferably a self-tapping screw or other fastening plug-in components.

Further, the keel frame comprises a main rib and an end rib, and the main rib and the end rib are connected to form a frame structure. Specifically, the main ribs are two, the two main ribs are parallel, the main ribs are horizontally arranged, the end ribs are two, the two end ribs are parallel, the end ribs are vertically arranged, and the two end ribs are respectively connected with the two ends of the two main ribs to form a rectangular frame structure. The main rib is arranged along the length direction of the plate, and the end rib is arranged along the width direction of the plate and is matched with the shape of the fireproof plate and the heat insulation layer to form the composite heat insulation external wall board with a rectangular shape as a whole. Further, a horizontal reinforcing rib and a vertical reinforcing rib are arranged in the keel frame. Through a plurality of horizontal stiffening ribs and vertical stiffening ribs of concatenation in the centre for fossil fragments skeleton texture bearing capacity is higher, makes the compound heat preservation side fascia performance of formation more stable.

Further, the keel frame adopts cold-formed thin-wall section steel or square tubes, namely, the main rib, the end rib, the horizontal reinforcing rib and the vertical reinforcing rib all adopt cold-formed thin-wall section steel, the weight is reduced when the strength is ensured, the grooves on the main rib and the end rib face the inside of the keel frame, and the outer peripheral surface of the keel frame is ensured to be smooth.

Further, a bonding layer is arranged between the fireproof plate and the heat insulation layer, the fireproof plate is bonded and compounded together through the interface treatment layer and the bonding layer, the bonding layer is polymer bonding mortar, the thickness is 2mm to 10mm, and the fireproof plate is coated or scraped on the outer side plate surface of the fireproof plate subjected to interface treatment. The heat preservation is bonded through the bonding layer, so that the heat preservation is firmly bonded to the upper surface.

In order to solve the problem of technical bottlenecks of the connecting piece in the prior art, namely that a metal connecting piece is adopted between an inner leaf concrete plate and an outer leaf concrete plate to form an obvious heat bridge, and the problems of low tensile elastic modulus, low shear strength, high manufacturing cost, easiness in aging and the like of the carbon Fiber (FRP) connecting piece are solved.

Further, the fireproof plate is any one of a paper gypsum board, a fiber reinforced calcium silicate board or a fiber reinforced cement board, and is connected with the light steel keel frame through self-tapping nails. The thickness of the fire-proof plate is 8mm to 25mm.

Further, the interface treatment layer is a special interface agent for the fireproof plate, and is roll-coated or sprayed on the outer side plate surface of the fireproof plate.

Further, the heat preservation layer is any one of a rock wool board, a polyphenyl board, a polyurethane board, a phenolic board or a A, B-grade heat preservation material composite board. The thickness of the heat preservation layer is calculated and determined according to the energy-saving design requirement.

Further, the heat-insulating self-tapping screw comprises a plastic connecting pipe with a disc at the tail end and a self-tapping screw, the self-tapping screw is inserted into the plastic connecting pipe, and the heat-insulating self-tapping screw anchors the heat-insulating layer and the fireproof plate together.

On the other hand, the utility model also provides a wall structure, which comprises the light prefabricated composite heat-insulating external wall panel and a base wall, wherein the light composite heat-insulating external wall panel is provided with a plurality of blocks, is connected to the base wall and is positioned on the outer side of the base wall. Wherein, the base wall body is a concrete wall body or a masonry wall body. Based on the effect that above-mentioned light-duty prefabricated compound heat preservation side fascia brought, can improve the efficiency of construction by a wide margin, guarantee wall quality.

In addition, the utility model also provides another wall structure, which comprises the light prefabricated composite heat-insulating external wall panel and further comprises a steel frame column, wherein the composite heat-insulating external wall panel is arranged on the steel frame column and positioned at the outer side of the steel frame column, and the keel framework is connected to the steel frame column through a connecting component. The composite heat-insulating external wallboard is installed on the steel frame beam and located on the outer side of the steel frame beam, and the keel frame is connected to the steel frame beam through the connecting assembly. The light prefabricated composite heat-insulating external wall panel can be manufactured and formed in a factory in a construction mode, all construction layers are reliably connected, production efficiency is high, product quality is easy to control, the composite heat-insulating external wall panel is fixedly connected to a steel frame beam and a steel frame column through a connecting assembly directly on a construction site, field construction wet operation is avoided, connection safety of the heat-insulating panel is improved, assembly is rapid and simple, construction period is shortened, and construction efficiency and construction quality are improved.

Further, the connecting assembly comprises a connecting keel, a connecting sheet and a fastener, wherein the keel is fixedly connected to the steel frame column in a horizontal welding mode, the keel is fixedly connected to the steel frame beam in a vertical welding mode, and the connecting sheet fixedly connects the keel framework with the connecting keel. Specifically, the connection piece is the panel beating of bending, is the L type, and one side of connection piece is connected with fossil fragments skeleton through the screw, and the another side of connection piece is connected with connection fossil fragments through the fastener, and the fastener is the screw preferably. Realize the quick connect of compound heat preservation side fascia and steel frame post, steel frame roof beam, horizontal welding fixed connection fossil fragments on the steel frame post, perpendicular welding fixed connection fossil fragments on the steel frame roof beam can guarantee that the mounted position of compound heat preservation side fascia is accurate and can not adorn the off tracking, increase fossil fragments skeleton contact surface and connection fastness simultaneously.

From the above technical scheme, the utility model has the following advantages:

1. taking a keel framework paved with a fireproof plate as a base layer to bear the dead weight of the composite heat-insulating plate and wind load and earthquake load acted on the composite heat-insulating plate; the composite organic heat-insulating plate is compounded on the keel framework base layer of the nailing fireproof plate, so that the thermal performance of the wall body is improved, the thermal defect of the traditional light steel keel composite wallboard is overcome, and the fireproof problem of the organic heat-insulating material is solved through the A-level heat-insulating slurry poured on the surface of the heat-insulating layer.

2. The light prefabricated composite heat-insulating external wall panel has small dead weight and good suitability for steel structure buildings. The self weight of the wallboard is small and is only 1/5-1/8 of that of the precast concrete sandwich panel, the wallboard is convenient to transport, hoist and mount and position adjustment, and the advantages of light weight, high strength and good earthquake resistance of the steel structure building can be fully exerted.

3. The connection of each structural layer of the light prefabricated composite heat-insulating external wall panel is safe and reliable, and no through heat bridge exists. The keel frame of the wallboard is welded in a factory, the fireproof plate is nailed and paved on the production line by adopting special equipment, the heat insulation layer is compounded, a cavity-free structure is adopted between the heat insulation layer and the fireproof plate, and the heat insulation self-tapping screw is additionally arranged to assist mechanical fixation, so that the connection safety of the heat insulation layer is ensured, and a penetrating heat bridge is avoided.

4. The problem of wallboard pipeline separation is solved. After the wallboard is installed in place, the pipeline can be laid in the wallboard keel framework, the pipeline is covered by the backboard on the inner side of the wall body, and the backboard can be detached for pipeline maintenance and replacement in the later use process, so that the wallboard keel framework is simple in structure and convenient to operate.

5. The keel frame and the fireproof plate are formed in a workshop in a machining mode, the heat-insulating layer is compounded, production efficiency is high, product quality is easy to control, a cavity-free structure is adopted between the heat-insulating layer and the fireproof plate, and the heat-insulating layer is fixed mechanically in an auxiliary mode through additionally arranging heat-insulating self-tapping screws, so that connection safety of the heat-insulating layer is guaranteed, and the problem that the heat-insulating plate falls off is solved.

6. The light prefabricated composite heat-insulating external wall panel can be machined and manufactured in a factory, is directly assembled on a construction site, is simple and convenient to operate, is high in installation speed, and solves the problems of multiple working procedures, complex construction, long construction period, high cost and low assembly construction degree of the traditional method.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.

FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1.

FIG. 3 is a schematic view of the cross-sectional structure B-B in FIG. 1.

Fig. 4 is a schematic view of a skeleton structure of a keel according to embodiment 1 of the utility model.

Fig. 5 is a schematic structural view of embodiment 1 of the present utility model when a protective layer is provided.

Fig. 6 is a schematic diagram of the split structure of fig. 5.

Fig. 7 is a schematic structural diagram of embodiment 2 of the present utility model.

Fig. 8 is a schematic structural view of embodiment 3 of the present utility model.

In the figure, 1, a keel frame, 11, a main rib, 12, an end rib, 13, a vertical reinforcing rib, 14, a horizontal reinforcing rib, 2, a fireproof plate, 3, an interface treatment layer, 4, an adhesive layer, 5, an insulating layer, 6, a protective layer, 7, a glass fiber net, 8, an insulating self-tapping screw, 9, a self-tapping screw, 100, a base layer wall body, 101, a steel frame column, 102, a connecting sheet, 103, a connecting keel, 104, a fastener, 105 and a steel frame beam.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

Description of the preferred embodiments 1

As shown in fig. 1 to 6, the present embodiment provides a light prefabricated composite heat-insulation external wall panel, which comprises a keel frame 1, a fireproof plate 2 and a heat-insulation layer 5, wherein the keel frame 1, the fireproof plate 2 and the heat-insulation layer 5 are connected into a whole to form the composite heat-insulation external wall panel. The fireproof plate 2 is connected to the keel frame 1, the fireproof plate 2 is positioned on the outer side of the keel frame 1, the fireproof plate 2 is flatly paved on the outer side surface of the keel frame 1 to form a base layer of the whole composite heat-insulation external wall panel, and the self weight of the composite heat-insulation plate and wind load and earthquake load acted on the composite heat-insulation plate are born; the heat preservation layer 5 is located the outside of PLASTIC LAMINATED 2, has improved the thermal performance of wall body, and heat preservation layer 5 is the homogeneity, can make compound heated board internal surface temperature field evenly distributed to satisfy the thermal design requirement of wallboard, but the construction mode of filling insulation material in the skeleton among the prior art.

As shown in fig. 4, the keel frame 1 includes a main rib 11 and an end rib 12, and the main rib 11 and the end rib 12 are connected to form a frame structure. Specifically, the two main ribs 11 are parallel, the two main ribs 11 are horizontally arranged, the two end ribs 12 are parallel, the two end ribs 12 are vertically arranged, and the two end ribs 12 are respectively connected with two ends of the two main ribs 11 to form a rectangular frame structure. The main rib 11 sets up along the board length direction, and end rib 12 sets up along the board width direction, with the shape adaptation of PLASTIC LAMINATED 2 and heat preservation 5, forms the compound heat preservation side fascia of whole rectangular shape, is provided with the level in the fossil fragments skeleton 1 to stiffening rib 14 and vertical to stiffening rib 13, through splice a plurality of levels in the centre to stiffening rib 14 and vertical to stiffening rib 13 for fossil fragments skeleton 1 structure bearing capacity is higher, makes the compound heat preservation side fascia performance of formation more stable. The keel frame 1 adopts cold-formed thin-walled steel, namely the main rib 11, the end rib 12, the horizontal reinforcing rib 14 and the vertical reinforcing rib 13 all adopt cold-formed thin-walled steel, the weight is reduced while the strength is ensured, the grooves on the main rib 11 and the end rib 12 face the inside of the keel frame 1, and the outer peripheral surface of the keel frame 1 is ensured to be flat.

In order to solve the problem of technical bottleneck of the connecting piece in the prior art, namely that a metal connecting piece is adopted between an inner leaf concrete plate and an outer leaf concrete plate to form an obvious heat bridge, and the problems of low tensile elastic modulus, low shear strength, high manufacturing cost, easiness in aging and the like of the carbon Fiber (FRP) connecting piece are solved, the fireproof plate 2 and the keel frame 1 are connected through self-tapping nails 9, the fireproof plate 2 is firmly fixed on the keel frame 1, the self-tapping nails 9 are positioned on the inner side of the heat preservation 5, heat preservation self-tapping screws 8 are connected between the heat preservation 5 and the fireproof plate 2, so that the connection safety between the heat preservation 5 and the fireproof plate 2 is further enhanced, the heat preservation self-tapping screws 8 and the self-tapping nails 9 are staggered, the arrangement mode does not enable a metal nail body to penetrate through the whole composite heat preservation external wallboard, the occurrence of through heat bridge is avoided, and the connection of each structural layer is safe and reliable. In some embodiments, the insulating self-tapping screw 8 comprises a plastic connecting pipe with a disk at the tail end and a self-tapping screw, the self-tapping screw is inserted into the plastic connecting pipe, and the insulating self-tapping screw 8 mechanically anchors the insulating layer 5 and the fireproof plate 2 together.

In addition, be provided with tie coat 4 between PLASTIC LAMINATED 2 and the heat preservation 5, PLASTIC LAMINATED 2 is in the same place through interface treatment layer 3 and tie coat 4 bonding, and tie coat 4 is polymer bonding mortar, and thickness is 2mm to 10mm, scribbles or knife coating in the outside face of PLASTIC LAMINATED 2 through interface treatment. The heat-insulating layer 5 is bonded by the adhesive layer 4, so that the heat-insulating layer 5 is firmly bonded to the upper surface.

In this scheme, PLASTIC LAMINATED 2 is arbitrary one of thistle board, fiber reinforced calcium silicate board or fiber reinforced cement board, and PLASTIC LAMINATED 2 passes through self-tapping screw 9 to be connected with light gauge steel skeleton 1, and PLASTIC LAMINATED 2's thickness is 8mm to 25mm.

In the scheme, the interface treatment layer 3 is a special interface agent for the fireproof plate 2, and is roll-coated or sprayed on the outer side plate surface of the fireproof plate 2.

In the scheme, the heat preservation layer 5 is any one of a polyphenyl board, a polyurethane board or a phenolic board, and the thickness of the heat preservation layer 5 is calculated and determined according to the energy-saving design requirement. In some specific embodiments, referring to fig. 5 and 6, a protective layer 6 is arranged on the outer side of the heat-insulating layer 5, the protective layer 6 is compounded on the heat-insulating layer 5, the protective layer 6 is a rubber powder polyphenyl granule heat-insulating slurry or vitrified micro bubble heat-insulating slurry protective layer 6, the combustion performance grade of the slurry is not lower than grade A2, the slurry is poured on the upper surface of the heat-insulating layer 5 and pressed into an alkali-resistant glass fiber net 7 lattice cloth, the thickness of the protective layer 6 is 20mm to 50mm, and the grade a heat-insulating slurry is used as the protective layer 6 so as to meet the fireproof requirement; at this time, the insulating self-tapping screw 8 is anchored to the fire-proof plate 2 through the protective layer 6, the insulating layer 5 and the adhesive layer 4 to mechanically anchor them together.

Description of the preferred embodiments 2

As shown in fig. 7, the present embodiment provides a wall structure, including the light prefabricated composite thermal insulation external wall panel in embodiment 1, further including a base wall body 100, where the light composite thermal insulation external wall panel has a plurality of pieces, and the light composite thermal insulation external wall panel is connected to the base wall body 100 and is located outside the base wall body 100. Wherein the base wall 100 is a concrete wall or a masonry wall. Based on the effect that above-mentioned light-duty prefabricated compound heat preservation side fascia brought, can improve the efficiency of construction by a wide margin, guarantee wall quality.

Description of the preferred embodiment 3

As shown in fig. 8, the present embodiment provides a wall structure, applied to a steel structure building system, the wall structure includes a light prefabricated composite heat-insulating external wall panel in embodiment 1, and further includes a steel frame column 101 and a steel frame beam 105, the composite heat-insulating external wall panel is installed on the steel frame column 101 and the steel frame beam 105, the composite heat-insulating external wall panel is located on the outer sides of the steel frame column 101 and the steel frame beam 105, a keel frame 1 is connected to the steel frame column 101 through a connection component, and the keel frame 1 is connected to the steel frame beam 105 through the connection component. Specifically, the connecting assembly comprises a connecting keel 103, a connecting sheet 102 and a fastener 104, wherein the fastener 104 is preferably a screw, the keel 103 is fixedly connected to the steel frame column 101 by horizontal welding, the keel 103 is fixedly connected to the steel frame beam 105 by vertical welding, and the connecting sheet 102 fixedly connects the keel frame 1 with the connecting keel 103. The connection piece 102 is bending sheet metal, takes the shape of an L, one side of the connection piece 102 is connected with the keel frame 1 through a screw, and the other side of the connection piece 102 is connected with the connection keel 103 through a screw. Realize the quick connect of compound heat preservation side fascia and steel frame post 101, steel frame roof beam 105, horizontal welded fastening connects fossil fragments 103 on the steel frame post 101, perpendicular welded fastening connects fossil fragments 103 on the steel frame roof beam 105 can guarantee that the mounted position of compound heat preservation side fascia is accurate and can not adorn the off tracking, increase fossil fragments skeleton 1 contact surface and connection fastness simultaneously. The light prefabricated composite heat-insulating external wall panel can be manufactured and formed in a factory in a construction mode, all construction layers are reliably connected, production efficiency is high, product quality is easy to control, the composite heat-insulating external wall panel is fixedly connected to the steel frame beam 105 and the steel frame column 101 through the connecting assembly directly on a construction site, site construction wet operation is avoided, connection safety of the heat-insulating panel is improved, assembly is rapid and simple, construction period is shortened, and construction efficiency and construction quality are improved.

The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the utility model and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a light-duty prefabricated compound heat preservation side fascia, its characterized in that includes fossil fragments skeleton, PLASTIC LAMINATED and heat preservation, and the PLASTIC LAMINATED is connected on fossil fragments skeleton, and the PLASTIC LAMINATED is located the outside of fossil fragments skeleton, and the heat preservation is located the outside of PLASTIC LAMINATED, and fossil fragments skeleton, PLASTIC LAMINATED, heat preservation are connected as an organic wholely.

2. The lightweight prefabricated composite thermal insulation external wall panel as claimed in claim 1, wherein the outer side of the thermal insulation layer is provided with a protective layer.

3. The lightweight prefabricated composite thermal insulation exterior wall panel of claim 1 or 2, wherein the fire protection panel is tiled to the exterior side of the keel frame.

4. The light prefabricated composite heat-insulating external wall panel according to claim 1 or 2, wherein the keel frame comprises a main rib and an end rib, the main rib and the end rib are connected to form a frame structure, a horizontal reinforcing rib and a vertical reinforcing rib are arranged in the keel frame, and the keel frame adopts cold-formed thin-wall section steel or square tubes.

5. The light-weight prefabricated composite thermal insulation external wall panel as claimed in claim 1 or 2, wherein an adhesive layer is arranged between the fireproof plate and the thermal insulation layer.

6. The light prefabricated composite heat-insulating external wall panel according to claim 1 or 2, wherein the fireproof plate and the keel frame are connected through self-tapping screws, the self-tapping screws are positioned on the inner side of the heat-insulating layer, heat-insulating self-tapping screws are connected between the heat-insulating layer and the fireproof plate, and the heat-insulating self-tapping screws are staggered with the self-tapping screws.

7. The light-weight prefabricated composite thermal insulation external wall panel according to claim 1 or 2, wherein the fireproof plate is any one of a paper gypsum board, a fiber reinforced calcium silicate board or a fiber reinforced cement board, and the thickness of the fireproof plate is 8mm to 25mm.

8. The lightweight prefabricated composite thermal insulation exterior wallboard of claim 1 or 2, wherein the fire protection panel is secured to the keel frame by connectors.

9. A wall structure comprising the light prefabricated composite thermal insulation external wall panel according to any one of claims 1 to 8, further comprising a base wall body, wherein the light composite thermal insulation external wall panel is provided with a plurality of blocks, the light composite thermal insulation external wall panel is connected to the base wall body and is positioned on the outer side of the base wall body, and the base wall body is a concrete wall body or a masonry wall body.

10. A wall structure comprising the light prefabricated composite thermal insulation external wall panel of any one of claims 1-8, further comprising a steel frame column, wherein the composite thermal insulation external wall panel is mounted on the steel frame column and positioned outside the steel frame column, and the keel frame is connected to the steel frame column through a connecting component.

11. The wall structure of claim 10, further comprising a steel frame beam, wherein the composite thermal insulation external wall panel is mounted on and outside the steel frame beam, and wherein the keel frame is connected to the steel frame beam by a connection assembly.

12. The wall structure of claim 11, wherein the connection assembly comprises a connection keel, a connection piece and a fastener, the connection keel being fixedly welded horizontally on the steel frame column, the connection keel being fixedly welded vertically on the steel frame beam, the connection piece fixedly connecting the keel frame and the connection keel.