A thermal insulation structure of a concrete sandwich composite wallboard

Abstract

The utility model relates to concrete sandwich wall technical field especially concrete sandwich composite wallboard heat preservation structure, including concrete outer wall, heat preservation layer, concrete inner wall still include at least four connecting pieces, the connecting piece at least partial in concrete outer wall, at least partial through heat preservation layer, at least partial in concrete inner wall, each connecting piece is all inclined to set, each wall has at least one upwardly inclined connecting piece, one downwardly inclined connecting piece, one leftwardly inclined connecting piece, one rightwardly inclined connecting piece. The structure sets up the connecting piece of multidirectional inclination between concrete outer wall, heat preservation layer and concrete inner wall, has realized the reliable connection between inside and outside wall, makes the wall body can keep the overall stability when being stressed, resists wind load, hoisting load and earthquake action. The connecting piece inclined through heat preservation layer, effectively lengthened the heat conduction path, significantly weakened the thermal bridge effect, improved the heat preservation and heat insulation performance of sandwich composite wallboard.

Description

Technical Field

[0001] This utility model relates to the field of concrete sandwich wall technology, and in particular to a thermal insulation structure for concrete sandwich composite wall panels. Background Technology

[0002] Concrete sandwich composite wall panels are a type of composite structure consisting of an outer concrete layer, an insulation layer, and an inner concrete layer. These wall panels combine load-bearing, enclosure, and insulation functions, and are widely used in prefabricated and energy-efficient buildings. To ensure the integrity and shared load-bearing capacity between the inner and outer concrete layers, connectors are needed to reliably connect the inner and outer wall layers through the intermediate insulation layer.

[0003] In existing technologies, these connectors are generally arranged vertically, directly penetrating the insulation layer to fix the inner and outer wall panels together. Although straight connectors are simpler to install, they still have the following problems in practical applications: the connectors directly penetrate the insulation layer, forming a high thermal conductivity channel, which increases the heat transfer coefficient of the wall and reduces its insulation performance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where connectors directly penetrate the insulation layer, forming high thermal conductivity channels that increase the heat transfer coefficient of the wall and reduce its insulation performance. Therefore, this invention proposes a concrete sandwich composite wall panel insulation structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A concrete sandwich composite wall panel insulation structure includes, in sequence, a concrete outer wall, an insulation layer, and a concrete inner wall, and also includes at least four connectors. The connectors are at least partially located in the concrete outer wall, at least partially penetrate the insulation layer, and at least partially located in the concrete inner wall. Each connector is inclined, and each wall has at least one upwardly inclined connector, one downwardly inclined connector, one leftwardly inclined connector, and one rightwardly inclined connector.

[0007] The connector includes a connecting rod, a first insert, and a first limiting plate located at one end of the first insert. The first insert and the first limiting plate are set at an acute angle. The first insert obliquely penetrates the insulation layer. The first limiting plate is parallel to and abuts against the insulation layer. The connecting rod penetrates the first insert and the first limiting plate. The connecting rod is at least partially located inside the outer concrete wall and at least partially located inside the inner concrete wall.

[0008] The connecting rod includes a rod body, a head located at one end of the rod body, and two forked portions located at the other end of the rod body. The two forked portions are separated by a slit. The head has a ram's horn shape. The end of the first insert is fixedly connected to a dividing portion. The diameter of the dividing portion is larger than the width of the slit.

[0009] The connector includes a second insert and a second limiting plate located at one end of the second insert. The length of the second insert is less than the length of the first insert, and the two are coaxially arranged. The first insert passes through the second insert. The diameter of the second limiting plate is less than the diameter of the first limiting plate. The second limiting plate is parallel to the first limiting plate, and their adjacent surfaces abut against each other.

[0010] Both the first insert and the first limiting plate are made of plastic.

[0011] Both the second insert and the second limiting plate are made of plastic.

[0012] The connecting rod is made of metal.

[0013] This utility model proposes a concrete sandwich composite wall panel insulation structure, which has the following advantages: This structure achieves a reliable connection between the inner and outer walls by setting multi-directional inclined connectors between the concrete outer wall, the insulation layer, and the concrete inner wall. This allows the wall to maintain overall stability under stress and resist wind loads, hoisting loads, and seismic forces. The inclined connectors penetrate the insulation layer, effectively lengthening the heat conduction path, significantly reducing the thermal bridging effect, and improving the thermal insulation performance of the sandwich composite wall panel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the connector of this utility model in the insulated wall;

[0015] Figure 2 This is a schematic diagram of the first and second inserts of this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting rod and the first insert of this utility model;

[0017] Figure 4 This is a schematic diagram of the connecting rod structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the multi-directional distribution structure of multiple connectors of this utility model.

[0019] In the diagram: 1. Concrete exterior wall; 2. Insulation layer; 3. Concrete interior wall; 4. Connector; 5. First limiting plate; 6. First insert; 7. Dividing part; 8. Second limiting plate; 9. Second insert; 10. Head; 11. Ram's horn head; 12. Connecting rod; 13. Forked part; 14. Strip joint; 15. First piece; 16. Second piece; 17. Third piece; 18. Fourth piece. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5 A concrete sandwich composite wall panel insulation structure includes, in sequence, an outer concrete wall 1, an insulation layer 2, and an inner concrete wall 3, and also includes at least four connectors 4. The connectors 4 are at least partially located in the outer concrete wall 1, at least partially penetrate the insulation layer 2, and at least partially located in the inner concrete wall 3. Each connector 4 is inclined, and each wall has at least one upwardly inclined connector 4, one downwardly inclined connector 4, one leftwardly inclined connector 4, and one rightwardly inclined connector 4.

[0022] The plurality of connectors 4 includes at least an upwardly inclined connector 4, a downwardly inclined connector 4, a leftwardly inclined connector 4, and a rightwardly inclined connector 4. Through this inclined distribution, the connectors 4 can form force-bearing pathways in multiple directions when transferring loads between the concrete exterior wall 1 and the concrete interior wall 3, thus rationally dispersing and transferring shear forces and tensile and compressive forces. This ensures the overall coordinated operation of the concrete exterior wall 1 and the concrete interior wall 3 under load. Simultaneously, because the connectors 4 are inclined and penetrate the insulation layer 2, the heat flow path is extended, reducing thermal bridging problems.

[0023] This structure achieves a reliable connection between the inner and outer walls by installing multi-directional inclined connectors between the concrete outer wall, the insulation layer, and the concrete inner wall. This allows the wall to maintain overall stability under stress and resist wind loads, hoisting loads, and seismic forces. The inclined connectors penetrate the insulation layer, effectively lengthening the heat conduction path, significantly reducing the thermal bridging effect, and improving the thermal insulation performance of the sandwich composite wall panel.

[0024] For ease of understanding, the upward-sloping connector 4 is defined as the first piece 15, the downward-sloping connector 4 is defined as the second piece 16, the left-sloping connector 4 is defined as the third piece 17, and the right-sloping connector 4 is defined as the fourth piece 18.

[0025] The connector 4 includes a connecting rod 12, a first insert 6, and a first limiting plate 5 located at one end of the first insert 6. The first insert 6 and the first limiting plate 5 are set at an acute angle. The first insert 6 obliquely penetrates the insulation layer 2. The first limiting plate 5 is parallel to and abuts against the insulation layer 2. The connecting rod 12 penetrates the first insert 6 and the first limiting plate 5. The connecting rod 12 is at least partially located inside the concrete outer wall 1 and at least partially located inside the concrete inner wall 3.

[0026] The first insert 6 and the first limiting plate 5 are arranged at an acute angle, allowing the first insert 6 to penetrate the insulation layer 2 at an angle. The first limiting plate 5 is close to and parallel to the insulation layer 2, thereby limiting the installation angle of the first insert 6 in the insulation layer 2 and providing stable support. The connecting rod 12 passes through the first insert 6 and the first limiting plate 5 along the axial direction of the first insert 6. One end of the connecting rod 12 extends into the concrete outer wall 1, and the other end extends into the concrete inner wall 3, thereby forming a force-bearing channel that connects the concrete outer wall 1 and the concrete inner wall 3. Through the guiding effect of the first insert 6, the connecting rod 12 can maintain a stable inclined position, ensuring that the connector 4 accurately penetrates the insulation layer 2 and is fixed in the concrete walls on both sides during construction.

[0027] The connecting rod 12 includes a rod body, a head 10 located at one end of the rod body, and two forked portions 13 located at the other end of the rod body. The two forked portions 13 are separated by a slit 14. The head 10 has a ram's horn head 11. A dividing portion 7 is fixedly connected to the end of the first insert 6. The diameter of the dividing portion 7 is larger than the width of the slit 14.

[0028] During construction, the connecting rod 12 is inserted along the first insert 6. When the two forked portions 13 pass through the dividing portion 7, due to the size of the dividing portion 7, the two forked portions 13 are forced to spring apart to the sides, maintaining a separated posture. This allows them to be encased in concrete and form a stable anchor during concrete pouring. Simultaneously, the ram's horn head 11 on the head 10 fits tightly into the concrete, further enhancing the pull-out resistance of the connecting rod 12 within the concrete, enabling the connector 4 to firmly connect the concrete outer wall 1 and the concrete inner wall 3. By setting the ram's horn head 11 and the forked portions 13, the anchoring effect of the connecting rod 12 in the concrete outer wall 1 and the concrete inner wall 3 is significantly improved, avoiding the defects of traditional straight rods that are prone to slippage or pull-out. The dividing portion 7 ensures that the two forked portions 13 are reliably opened after insertion, forming a stable locking structure, while the slot 14 guarantees the separation capability of the forked portions 13.

[0029] The connector 4 includes a second insert 9 and a second limiting plate 8 located at one end of the second insert 9. The length of the second insert 9 is less than the length of the first insert 6 and the two are coaxially arranged. The first insert 6 passes through the second insert 9. The diameter of the second limiting plate 8 is less than the diameter of the first limiting plate 5. The second limiting plate 8 is parallel to the first limiting plate 5 and their adjacent surfaces abut against each other.

[0030] During construction, the second insert 9 and the second limiting plate 8 are first inserted into the insulation layer 2 to play a positioning and guiding role, so that the longer first insert 6 can be smoothly inserted along the predetermined direction and accurately penetrate the insulation layer 2, thereby making the first limiting plate 5 reliably attached to the surface of the insulation layer 2.

[0031] In one implementation, the first insert 6 and the first limiting plate 5 are both made of plastic; the second insert 9 and the second limiting plate 8 are both made of plastic; and the connecting rod 12 is made of metal. The use of plastic for the first insert 6 and the first limiting plate 5, and also for the second insert 9 and the second limiting plate 8, effectively reduces the thermal conductivity coefficient and weakens the thermal bridging effect caused by the connector 4 penetrating the insulation layer 2. Simultaneously, the use of metal for the connecting rod 12 ensures sufficient strength and load-bearing capacity.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete sandwich composite wall panel insulation structure, comprising, in sequence, a concrete outer wall (1), an insulation layer (2), and a concrete inner wall (3), characterized in that, It also includes at least four connectors (4), which are at least partially located on the concrete exterior wall (1), at least partially penetrate the insulation layer (2), and at least partially located on the concrete interior wall (3). Each connector (4) is inclined, and each wall has at least one upwardly inclined connector (4), one downwardly inclined connector (4), one leftwardly inclined connector (4), and one rightwardly inclined connector (4).

2. The concrete sandwich composite wall panel insulation structure according to claim 1, characterized in that, The connector (4) includes a connecting rod (12), a first insert (6), and a first limiting plate (5) located at one end of the first insert (6). The first insert (6) and the first limiting plate (5) are set at an acute angle. The first insert (6) obliquely penetrates the insulation layer (2). The first limiting plate (5) is parallel to and abuts against the insulation layer (2). The connecting rod (12) penetrates the first insert (6) and the first limiting plate (5). The connecting rod (12) is at least partially located inside the concrete outer wall (1) and at least partially located inside the concrete inner wall (3).

3. The concrete sandwich composite wall panel insulation structure according to claim 2, characterized in that, The connecting rod (12) includes a rod body, a head (10) at one end of the rod body, and two forked portions (13) at the other end of the rod body. The two forked portions (13) are separated by a slit (14). The head (10) has a ram's horn head (11). The end of the first insert (6) is fixed with a dividing portion (7). The diameter of the dividing portion (7) is greater than the width of the slit (14).

4. A concrete sandwich composite wall panel insulation structure according to claim 2 or 3, characterized in that, The connector (4) includes a second insert (9) and a second limiting plate (8) located at one end of the second insert (9). The length of the second insert (9) is less than the length of the first insert (6) and the two are coaxially arranged. The first insert (6) passes through the second insert (9). The diameter of the second limiting plate (8) is less than the diameter of the first limiting plate (5). The second limiting plate (8) is parallel to the first limiting plate (5) and their adjacent surfaces abut against each other.

5. The concrete sandwich composite wall panel insulation structure according to claim 4, characterized in that, Both the first insert (6) and the first limiting plate (5) are made of plastic.

6. The concrete sandwich composite wall panel insulation structure according to claim 4, characterized in that, The second insert (9) and the second limiting plate (8) are both made of plastic.

7. The concrete sandwich composite wall panel insulation structure according to claim 4, characterized in that, The connecting rod (12) is made of metal.

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