Sandwich thermal insulation external wall panel

Abstract

This utility model relates to the field of PC component technology and discloses a sandwich-insulated external wall panel, including an outer leaf wall, an inner leaf wall, and an insulation layer sandwiched between the outer and inner leaf walls. The outer and inner leaf walls are connected by multiple connectors, with the middle part of the connector inserted into the insulation layer. The four corners of the inner leaf wall are formed with recessed platforms, on which embedded steel plates are pre-installed. By setting a sandwich insulation layer within the concrete wall panel, the insulation performance of the external wall panel can be improved, solving the problem of complex insulation layer construction in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of PC component technology, and in particular to a sandwich insulated external wall panel. Background Technology

[0002] In existing prefabricated buildings, the exterior wall panels are mostly single concrete structures, lacking inherent thermal insulation capabilities. To meet building energy efficiency requirements, an insulation layer must be added on-site after the wall panels are installed, using methods such as pasting, spraying, or dry hanging. However, this post-construction method has several drawbacks:

[0003] Complex construction: It requires multiple processes, including base treatment, insulation material laying / spraying, and surface protection. Frequent overlapping of these processes prolongs the construction period and demands high skill levels from construction workers. Potential quality risks: On-site operations are susceptible to environmental factors (such as temperature and humidity), leading to hollow areas and cracks between the insulation layer and the wall base. Over time, this can cause the insulation layer to detach, affecting insulation performance and posing a safety risk of falling from heights.

[0004] Poor durability: The insulation layer added later has a large difference in material from the main structure, and the two have poor deformation coordination. Under the action of temperature changes, vibration and other effects, interface separation is easy to occur, resulting in the insulation performance deteriorating year by year.

[0005] In addition, the connection between traditional external wall panels and the main building structure often relies on on-site drilling and rebar installation, which is inefficient and can easily damage the wall panel structure, affecting the overall stability. Utility Model Content

[0006] The purpose of this utility model is to provide a sandwich insulated external wall panel. By setting a sandwich insulation layer inside the concrete wall panel, the insulation performance of the external wall panel can be improved, and the problem of complicated construction of the insulation layer in the existing technology can be solved.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A sandwich insulated external wall panel includes an outer leaf wall, an inner leaf wall, and an insulation layer sandwiched between the outer leaf wall and the inner leaf wall; the outer leaf wall and the inner leaf wall are connected by multiple connectors, with the middle part of the connector inserted into the insulation layer;

[0009] The inner leaf wall has recessed platforms at its four corners, with pre-embedded steel plates on the platforms.

[0010] By installing an insulation wall between the inner and outer leaf walls, the insulation effect can be effectively guaranteed, and the heat exchange between the indoor and outdoor areas can be reduced; the outer and inner leaf walls are connected by multiple connectors, which can effectively improve the connection stability of the entire wall.

[0011] Embedding steel plates facilitates the later installation of the entire wall panel.

[0012] The present invention is further configured such that the insulation layer is a honeycomb panel or a polyurethane panel. Honeycomb panels and polyurethane panels are lightweight but have high structural strength and good thermal insulation performance.

[0013] The present invention is further configured such that: the insulation layer is generally rectangular in shape, and each of the upper and lower ends of the insulation layer is provided with a boss;

[0014] The edge of the insulation layer is separated from the outer wall of the outer leaf wall and the outer wall of the inner leaf wall by a distance L, which is 40 to 60 mm.

[0015] The present invention is further configured such that each of the protrusions of the insulation layer is provided with a connector;

[0016] The insulation layer is provided with two rows of evenly distributed connectors symmetrically arranged on both sides;

[0017] Each connector extends into its corresponding outer and inner leaf walls at both ends. The orderly and evenly distributed connectors enhance the stability of the connection structure between the outer and inner leaf walls of the entire wall panel.

[0018] The present invention is further configured such that: the connector includes an intermediate connecting column and end connecting plates disposed at both ends of the intermediate connecting column, and a support plate is sleeved on one end of the end connecting plate near the intermediate connecting column, and the support plate presses against the insulation layer.

[0019] The present invention is further configured such that: an outwardly inclined outer conical ring group and an inwardly inclined inner conical ring group are formed on the outer wall of the intermediate connecting column. By setting the inner and outer conical ring groups, the bonding between the intermediate connecting column and the intermediate insulation layer can be increased, allowing it to fully contact the insulation layer, and the intermediate insulation layer has a certain deformation capacity.

[0020] The present invention is further configured such that: a pair of protruding plates are provided at one end of the end connecting plate away from the intermediate connecting post, and the pair of protruding plates are arranged perpendicularly to the end connecting plate;

[0021] The end connecting plate has a groove formed in the middle. By setting the drawing plate, the contact area between the connector and the outer and inner leaf walls can be increased, thereby further improving the tensile force between the outer and inner leaf walls and thus improving the connection stability between them.

[0022] This utility model is further configured such that: multiple U-shaped supports are fixed on the embedded steel plate, and the U-shaped supports are cast inside the outer leaf wall. The U-shaped supports can increase the connection stability between the embedded steel plate and the outer leaf wall, and the embedded steel plate is welded to the main body of the building.

[0023] The outstanding effect of this utility model is:

[0024] Compared with existing technologies, by setting a sandwich insulation layer inside the concrete wall panel, the thermal insulation performance of the external wall panel can be improved, and the problem of complicated construction of the insulation layer in existing technologies can be solved.

[0025] By setting up pre-embedded steel plates, the connection between the wall panels and the main structure of the house can be facilitated.

[0026] The connection strength between the outer and inner leaf walls of the wall panel can be increased by setting multiple connectors. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a side view of the present invention;

[0029] Figure 3 This is a side sectional view of the present invention;

[0030] Figure 4 This is a frontal half-sectional view of the present invention;

[0031] Figure 5 for Figure 4 Sectional view of AA.

[0032] Reference numerals: 10, outer leaf wall;

[0033] 20. Inner leaf wall; 201. Recessed platform; 202. Embedded steel plate; 203. U-shaped support;

[0034] 30. Insulation layer; 301. Boss;

[0035] 40. Connector; 401. Intermediate connecting post; 402. End connecting plate; 403. Support plate; 404. Outer conical ring assembly; 405. Inner conical ring assembly; 406. Protruding plate; 407. Groove. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] The following is for reference Figures 1 to 5 The present invention will be described as follows:

[0038] A sandwich insulated external wall panel includes an outer leaf wall 10, an inner leaf wall 20, and an insulation layer 30 sandwiched between the outer leaf wall 10 and the inner leaf wall 20; the outer leaf wall 10 and the inner leaf wall 20 are connected by a plurality of connectors 40, and the middle part of the connectors 40 is inserted into the insulation layer 30.

[0039] The inner leaf wall 20 has four corners with recessed platforms 201, and embedded steel plates 202 are pre-installed on the recessed platforms 201.

[0040] By installing an insulation wall between the inner and outer leaf walls, the insulation effect can be effectively guaranteed, and the heat exchange between the indoor and outdoor areas can be reduced; the outer and inner leaf walls are connected by multiple connectors, which can effectively improve the connection stability of the entire wall.

[0041] Embedding steel plates facilitates the later installation of the entire wall panel.

[0042] The insulation layer 30 is a honeycomb panel or a polyurethane panel. Honeycomb panels and polyurethane panels are lightweight but have high structural strength and good thermal insulation performance.

[0043] The insulation layer 30 is generally rectangular, and each of the upper and lower ends of the insulation layer 30 is provided with a boss 301;

[0044] The edge of the insulation layer 30 is separated from the outer wall of the outer leaf wall 10 and the outer wall of the inner leaf wall 20 by a distance L, which is 40 to 60 mm.

[0045] Each of the protrusions of the insulation layer 30 is provided with a connector 40;

[0046] The insulation layer 30 has two rows of evenly distributed connectors 40 symmetrically arranged on both sides;

[0047] Each connector 40 extends into the corresponding outer leaf wall 10 and inner leaf wall 20 at both ends. The orderly and evenly distributed connectors improve the stability of the connection structure between the outer and inner leaf walls of the entire wall panel.

[0048] The connector 40 includes an intermediate connecting post 401 and end connecting plates 402 disposed at both ends of the intermediate connecting post 401. A support plate 403 is sleeved on one end of the end connecting plate 402 near the intermediate connecting post 401, and the support plate 403 presses against the insulation layer 30.

[0049] The outer wall of the intermediate connecting column 401 is formed with an outwardly inclined outer conical ring group 404 and an inwardly inclined inner conical ring group 405. By setting the inner and outer conical ring groups, the bonding between the intermediate connecting column and the intermediate insulation layer can be increased, so that it can fully contact the insulation layer, and the intermediate insulation layer has a certain deformation capacity.

[0050] The end connecting plate 402 is provided with a pair of protruding plates 406 at one end away from the intermediate connecting post 401, and the pair of protruding plates 406 are arranged perpendicularly to the end connecting plate 402.

[0051] The end connecting plate 402 has a groove 407 formed in the middle. By setting the plate, the contact area between the connector and the outer leaf wall and the inner leaf wall can be increased, thereby further improving the tensile force between the outer leaf wall and the inner leaf wall, and thus improving the connection stability between the two.

[0052] Multiple U-shaped supports 203 are fixed on the embedded steel plate 202, and the U-shaped supports 203 are cast inside the outer leaf wall 10. The U-shaped supports can increase the connection stability between the embedded steel plate and the outer leaf wall, and the embedded steel plate is welded to the main body of the building.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A sandwich thermal insulation external wall panel comprising an outer leaf (10), an inner leaf (20) and a thermal insulation layer (30) sandwiched between the outer leaf (10) and the inner leaf (20); characterised in that: The outer leaf wall (10) and the inner leaf wall (20) are connected by multiple connectors (40), with the middle part of the connector (40) inserted into the insulation layer (30); The inner leaf wall (20) has four corners with recessed platforms (201), and embedded steel plates (202) are pre-installed on the recessed platforms (201).

2. A sandwich thermal insulation exterior wall panel according to claim 1, characterized in that: The insulation layer (30) is a honeycomb panel or a polyurethane panel.

3. A sandwich thermal insulation exterior wall panel according to claim 1, characterized in that: The insulation layer (30) is generally rectangular, and each of the upper and lower ends of the insulation layer (30) is provided with a boss (301). The edge of the insulation layer (30) is separated from the outer wall of the outer leaf wall (10) and the outer wall of the inner leaf wall (20) by a distance L, which is 40 to 60 mm.

4. A sandwich thermal insulation exterior wall panel according to claim 3, wherein: Each of the protrusions of the insulation layer (30) is provided with a connector (40); The insulation layer (30) has two rows of evenly distributed connectors symmetrically arranged on both sides. Each connector (40) has its two ends inserted into the corresponding outer leaf wall (10) and inner leaf wall (20).

5. A sandwich thermal insulation exterior wall panel according to claim 4, characterised in that: The connector (40) includes an intermediate connecting post (401) and end connecting plates (402) disposed at both ends of the intermediate connecting post (401). A support plate (403) is sleeved on one end of the end connecting plate (402) near the intermediate connecting post (401), and the support plate (403) presses against the insulation layer (30).

6. A sandwich thermal insulation exterior wall panel according to claim 5, wherein: The outer wall of the intermediate connecting column (401) is formed with an outwardly inclined outer conical ring group (404) and an inwardly inclined inner conical ring group (405).

7. A sandwich thermal insulation exterior wall panel according to claim 5, wherein: The end connecting plate (402) is provided with a pair of protruding plates (406) at one end away from the intermediate connecting post (401), and the pair of protruding plates (406) and the end connecting plate (402) are arranged perpendicularly; The end connecting plate (402) has a groove (407) formed in the middle.

8. A sandwich thermal insulation exterior wall panel according to claim 1, characterized in that: Multiple U-shaped supports (203) are fixed on the pre-embedded steel plate (202), and the U-shaped supports (203) are cast inside the outer leaf wall (10).

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