Building external thermal insulation structure

By employing a combination of adhesive surfaces, connection mechanisms, and fixing mechanisms in the building's external insulation structure, the problems of thermal bridging and limited installation range are solved, enabling flexible installation on existing walls and enhanced connection effects, thereby improving overall insulation and fire resistance performance.

CN224244147UActive Publication Date: 2026-05-15TAIAN HONGDA CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIAN HONGDA CONSTR ENG CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing building external insulation structures are prone to thermal bridging at joints and are difficult to install on existing walls, limiting the scope of installation.

Method used

It adopts a combination design of adhesive surface, connection mechanism, insulation mechanism and fixing mechanism, including components such as cement mortar, fiberglass mesh cloth, expansion bolts, positioning ring, plug plate, fixing buckle, insulation block, connecting strip, positioning plate, metal bracket and internal hex bolt, etc., and enhances the connection effect and fire resistance through multi-layer structure and sealing materials.

Benefits of technology

It improves the installation flexibility on existing walls, enhances the connection between adjacent insulation blocks, avoids thermal bridging, and improves the overall insulation effect and fire resistance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224244147U_ABST
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Abstract

The utility model relates to the technical field of buildings, in particular to an external thermal insulation structure of a building, which not only is convenient to install on a built wall body and improves the use flexibility of the device, but also enhances the connecting effect between adjacent thermal insulation blocks and avoids the thermal bridge effect at a joint. Comprising a concrete pouring wall body, and the concrete pouring wall body is fixed to the ground; the heat preservation structure comprises a concrete pouring wall and further comprises an adhesion face, a connecting mechanism, a heat preservation mechanism and a fixing mechanism, the adhesion face is installed on the concrete pouring wall and enhances the connecting effect of the heat preservation mechanism and the concrete pouring wall, the connecting mechanism is installed on the concrete pouring wall and fixes the heat preservation mechanism, and the heat preservation mechanism is installed on the connecting mechanism and conducts heat preservation on a building. And the fixing mechanism is mounted on a concrete pouring wall body and is used for fixing and lifting the row of heat preservation mechanisms at the lowermost end.
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Description

Technical Field

[0001] This utility model relates to the technical field of building, and in particular to an external building insulation structure. Background Technology

[0002] The construction technology of external insulation of cast-in-place concrete exterior walls refers to placing the insulation board inside the outer formwork after the wall reinforcement is tied and before the concrete wall is poured. After the concrete is poured, the insulation layer is organically combined with the wall.

[0003] Existing building external insulation structures, such as the one disclosed in utility model patent application number 201920515609.0, mainly include a composite insulation board, a cast-in-place concrete structural wall, a steel mesh, tie rods, and a finishing layer. The composite insulation board is bonded to the outside of the cast-in-place concrete structure, and a steel mesh is provided on the outside of the composite insulation board. The tie rods connect the cast-in-place concrete structural wall and the composite insulation board into one unit, with one end of the tie rod pressing against the steel mesh of the composite insulation board. In use, the steel mesh is fixed in an appropriate position to ensure the connection performance between the composite insulation layer and the structural concrete.

[0004] However, existing external insulation structures are prone to thermal bridging at the joints, affecting the overall insulation effect. Moreover, they require construction in conjunction with concrete structural walls, making them difficult to install on existing walls and limiting the installation range. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an external building insulation structure that not only facilitates installation on existing walls and improves the flexibility of the device, but also enhances the connection effect between adjacent insulation blocks and avoids thermal bridging at the joints.

[0006] This utility model discloses an external building insulation structure, comprising a concrete cast-in-place wall fixed to the ground; it also includes an adhesive surface, a connecting mechanism, an insulation mechanism, and a fixing mechanism. The adhesive surface is installed on the concrete cast-in-place wall to enhance the connection between the insulation mechanism and the concrete cast-in-place wall. The connecting mechanism is installed on the concrete cast-in-place wall to fix the insulation mechanism. The insulation mechanism is installed on the connecting mechanism to insulate the building. The fixing mechanism is installed on the concrete cast-in-place wall to fix and support the bottom row of insulation mechanisms. Workers apply the adhesive surface to the concrete cast-in-place wall, then fix the connecting mechanism to the concrete cast-in-place wall, adhere the insulation mechanism to the adhesive surface, rotate the connecting mechanism to fix the insulation mechanism, and so on, installing multiple sets of insulation mechanisms and connecting mechanisms onto the concrete cast-in-place wall. Finally, the fixing mechanism is installed on the concrete cast-in-place wall and fixed at the bottom of the bottom row of insulation mechanisms.

[0007] Preferably, the bonding surface includes cement mortar and fiberglass mesh. The cement mortar is applied to the outer surface of the concrete pouring wall, and the fiberglass mesh is embedded in the cement mortar. The outer surface of the concrete pouring wall is cleaned, and then cement mortar is sprayed onto the outer surface of the concrete pouring wall. The fiberglass mesh is then bonded to the outer surface of the concrete pouring wall, and cement mortar is sprayed again.

[0008] Preferably, the connection mechanism includes expansion bolts, two sets of positioning rings, a plug plate, and a fixing buckle. The expansion bolts are fixed to the concrete wall, both sets of positioning rings are installed on the expansion bolts, the plug plate is rotatably installed on the expansion bolts and located between the two sets of positioning rings, and the fixing buckle is installed on the plug plate. After the workers drive the expansion bolts into the concrete wall, they attach the insulation mechanism to the cement mortar, and then rotate the plug plate so that the fixing buckle rotates downward to lock the insulation mechanism, and the plug plate rotates upward to facilitate fixing the insulation mechanism above.

[0009] Preferably, the insulation mechanism includes an insulation block, multiple sets of connecting strips, and a positioning plate. The insulation block is installed on cement mortar. Both the top and bottom ends of the insulation block have connecting grooves, and the bottom end of the insulation block has a positioning groove. Multiple sets of connecting strips are installed on the left and right sides of the insulation block, and the positioning plate is installed on the inner surface of the insulation block. The operator inserts the positioning groove at the bottom of the insulation block into the plug plate, then presses the insulation block firmly onto the cement mortar. The fixing buckle, in conjunction with the positioning plate, secures the top of the insulation block. The multiple sets of connecting strips on the two adjacent sets of insulation mechanisms interlock to enhance the connection effect.

[0010] Preferably, the insulation block also has a three-layer structure, with a flame-retardant extruded polystyrene board in the middle and inorganic fireproof boards on both sides; by adopting a composite three-layer insulation block, the fire resistance of the insulation block is enhanced.

[0011] Preferably, the joint between two adjacent sets of insulation blocks is filled with foamed polyethylene rods and silicone weather-resistant sealant for sealing; by filling with foamed polyethylene rods and silicone weather-resistant sealant, the connection and sealing effect of the two sets of insulation blocks is enhanced, heat is prevented from being lost from the joint, and the overall insulation effect is enhanced.

[0012] Preferably, the fixing mechanism includes a metal bracket and multiple sets of hexagon socket head cap screws. The metal bracket is installed at the bottom of the concrete wall, and the multiple sets of hexagon socket head cap screws are all installed on the metal bracket. After the bottom row of insulation mechanisms is installed, the metal bracket is inserted into the bottom connecting groove of the multiple sets of insulation blocks, and then the multiple sets of hexagon socket head cap screws are used to fix the metal bracket to the concrete wall to fix the multiple sets of insulation mechanisms.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the workers apply the adhesive surface to the concrete pouring wall, then fix the connecting mechanism to the concrete pouring wall, adhere the insulation mechanism to the adhesive surface, rotate the connecting mechanism to fix the insulation mechanism, and so on, install multiple sets of insulation mechanisms and connecting mechanisms to the concrete pouring wall, and then install the fixing mechanism on the concrete pouring wall and fix the bottom end of the bottom row of insulation mechanisms. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the concrete pouring wall, bonding surface and fixing mechanism of this utility model;

[0016] Figure 3 This is a partially enlarged cross-sectional isometric structural diagram of the connection mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged cross-sectional isometric structural diagram of the insulation mechanism of this utility model.

[0018] The attached diagram is labeled as follows: 01, concrete pouring wall; 02, bonding surface; 21, cement mortar; 22, fiberglass mesh; 03, connecting mechanism; 31, expansion bolt; 32, positioning ring; 33, plug-in plate; 34, fixing buckle; 04, insulation mechanism; 41, insulation block; 42, connecting strip; 43, positioning plate; 05, fixing mechanism; 51, metal bracket; 52, hex bolt. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1

[0021] This utility model discloses an external building insulation structure, including a concrete pouring wall 01 fixed to the ground; it also includes an adhesive surface 02, a connecting mechanism 03, an insulation mechanism 04, and a fixing mechanism 05. The adhesive surface 02 is installed on the concrete pouring wall 01 and enhances the connection between the insulation mechanism 04 and the concrete pouring wall 01. The connecting mechanism 03 is installed on the concrete pouring wall 01 and fixes the insulation mechanism 04. The insulation mechanism 04 is installed on the connecting mechanism 03 and provides insulation for the building. The fixing mechanism 05 is installed on the concrete pouring wall 01 and fixes the bottom row of insulation mechanisms 04. The support and bonding surface 02 includes cement mortar 21 and fiberglass mesh 22. The cement mortar 21 is applied to the outer surface of the concrete wall 01, and the fiberglass mesh 22 is embedded in the cement mortar 21. The connecting mechanism 03 includes expansion bolts 31, two sets of positioning rings 32, a plug-in plate 33, and a fixing buckle 34. The expansion bolts 31 are fixed to the concrete wall 01. Both sets of positioning rings 32 are installed on the expansion bolts 31. The plug-in plate 33 is rotatably installed on the expansion bolts 31 and located between the two sets of positioning rings 32. The fixing buckle 34 is installed on the plug-in plate 33. The insulation mechanism 04 includes insulation blocks 41, multiple sets of connecting strips 42, and positioning discs 43. The insulation block 41 is installed on the cement mortar 21. Connecting grooves are provided at both the top and bottom ends of the insulation block 41, and a positioning groove is provided at the bottom end. Multiple sets of connecting strips 42 are installed on the left and right sides of the insulation block 41, and a positioning plate 43 is installed on the inner surface of the insulation block 41. The insulation block 41 also has a three-layer structure: a flame-retardant extruded polystyrene board in the middle, and inorganic fireproof boards on both sides. During operation, firstly, the outer surface of the concrete wall 01 is cleaned, then cement mortar 21 is sprayed onto the outer surface of the concrete wall 01, and fiberglass mesh 22 is adhered to the outer surface of the concrete wall 01. Then, cement mortar 21 is sprayed again. 1. The workers drive the expansion bolts 31 into the concrete wall 01. The workers insert the bottom positioning groove of the insulation block 41 into the plug plate 33. Then, the insulation block 41 is pressed tightly onto the cement mortar 21. The plug plate 33 is then rotated so that the fixing buckle 34 rotates downward. The fixing buckle 34, together with the positioning plate 43, locks and fixes the top of the insulation block 41. The multiple connecting strips 42 on the two adjacent sets of insulation mechanisms 04 cross and fit together to enhance the connection effect. The plug plate 33 rotates upward to facilitate the fixing of the upper insulation mechanism 04. By using the composite three-layer insulation block 41, the fire resistance of the insulation block 41 is enhanced.

[0022] Example 2

[0023] like Figures 1 to 4As shown, this utility model provides an external building insulation structure based on embodiment 1. It further includes filling the joints of two adjacent sets of insulation blocks 41 with foamed polyethylene rods and sealing them with silicone weather-resistant sealant. The fixing mechanism 05 includes a metal bracket 51 and multiple sets of hexagonal bolts 52. The metal bracket 51 is installed at the bottom of the concrete wall 01, and the multiple sets of hexagonal bolts 52 are all installed on the metal bracket 51. During operation, firstly, the outer surface of the concrete wall 01 is cleaned, then cement mortar 21 is sprayed onto the outer surface of the concrete wall 01, fiberglass mesh 22 is adhered to the outer surface of the concrete wall 01, cement mortar 21 is sprayed again, expansion bolts 31 are driven into the concrete wall 01, the bottom positioning groove of the insulation block 41 is inserted into the insertion plate 33, and then the insulation block 41 is pressed tightly against the cement mortar 21. 1. Then rotate the plug plate 33 to make the fixing buckle 34 rotate downward. The fixing buckle 34 cooperates with the positioning plate 43 to fix the top of the insulation block 41. The multiple connecting strips 42 on the two adjacent sets of insulation mechanisms 04 cross and fit together to enhance the connection effect. The plug plate 33 rotates upward to facilitate the fixing of the upper insulation mechanism 04. By filling with foamed polyethylene rods and silicone weather-resistant sealant, the connection and sealing effect of the two sets of insulation blocks 41 is enhanced to prevent heat loss from the joint and enhance the overall insulation effect. By using composite three-layer insulation blocks 41, the fire resistance of insulation blocks 41 is enhanced. After the bottom row of insulation mechanisms 04 is installed, the metal bracket 51 is inserted into the bottom connecting groove of the multiple sets of insulation blocks 41. Then, the metal bracket 51 is fixed to the concrete wall 01 with multiple sets of internal hexagon bolts 52 to fix the multiple sets of insulation mechanisms 04.

[0024] 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, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An external building insulation structure, comprising a cast-in-place concrete wall (01), the cast-in-place concrete wall (01) being fixed to the ground; characterized in that, It also includes an adhesive surface (02), a connecting mechanism (03), an insulation mechanism (04), and a fixing mechanism (05). The adhesive surface (02) is installed on the concrete pouring wall (01) and enhances the connection effect between the insulation mechanism (04) and the concrete pouring wall (01). The connecting mechanism (03) is installed on the concrete pouring wall (01) and fixes the insulation mechanism (04). The insulation mechanism (04) is installed on the connecting mechanism (03) and insulates the building. The fixing mechanism (05) is installed on the concrete pouring wall (01) and fixes and supports the bottom row of insulation mechanisms (04).

2. The building external insulation structure as described in claim 1, characterized in that, The bonding surface (02) includes cement mortar (21) and fiberglass mesh (22). The cement mortar (21) is applied to the outer surface of the concrete-cast wall (01), and the fiberglass mesh (22) is embedded in the cement mortar (21).

3. The building external insulation structure as described in claim 1, characterized in that, The connecting mechanism (03) includes an expansion bolt (31), two sets of positioning rings (32), a plug plate (33), and a fixing buckle (34). The expansion bolt (31) is fixed on the concrete pouring wall (01). Both sets of positioning rings (32) are installed on the expansion bolt (31). The plug plate (33) is rotatably installed on the expansion bolt (31) and located between the two sets of positioning rings (32). The fixing buckle (34) is installed on the plug plate (33).

4. The building external insulation structure as described in claim 2, characterized in that, The insulation mechanism (04) includes an insulation block (41), multiple sets of connecting strips (42) and a positioning plate (43). The insulation block (41) is installed on cement mortar (21). The upper and lower ends of the insulation block (41) are provided with connecting grooves. The bottom end of the insulation block (41) is provided with a positioning groove. Multiple sets of connecting strips (42) are installed on the left and right sides of the insulation block (41) respectively. The positioning plate (43) is installed on the inner surface of the insulation block (41).

5. The building external insulation structure as described in claim 4, characterized in that, It also includes a three-layer structure for the insulation block (41), with flame-retardant extruded polystyrene board in the middle and inorganic fireproof board on both sides.

6. The building external insulation structure as described in claim 4, characterized in that, It also includes filling the joint of the two adjacent sets of insulation blocks (41) with foamed polyethylene rods and sealing with silicone weather-resistant sealant.

7. The building external insulation structure as described in claim 1, characterized in that, The fixing mechanism (05) includes a metal bracket (51) and multiple sets of internal hexagon bolts (52). The metal bracket (51) is installed at the bottom of the concrete-cast wall (01), and the multiple sets of internal hexagon bolts (52) are all installed on the metal bracket (51).