Outer wall anti-falling construction structure
By installing metal main plates and connecting ears on the exterior wall, combined with bolts and adhesive joints, the problem of unstable connection of exterior wall insulation boards was solved, achieving higher connection strength and anti-detachment performance.
Patent Information
- Application Number
- CN202422070614.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the current installation of exterior wall insulation boards, the aging and cracking of the leveling mortar leads to unstable connections of the insulation boards, increasing the risk of detachment. Furthermore, the arbitrary application of adhesive by personnel affects the stability of the fixation.
The metal main board and connecting ears are fixed to the exterior wall with expansion bolts. The insulation board is fixed to the metal main board with bolts and glue joints. The glue positioning groove is used to standardize the glue application position. The combination of bolts and glue joints improves the connection strength and stability.
This improves the connection strength and anti-detachment performance of the insulation board, ensures adhesion stability, and avoids instability problems caused by mortar layer aging and arbitrary application of adhesive by personnel.
Smart Images

Figure CN223535895U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of external wall structure technology, specifically an external wall anti-detachment structure. Background Technology
[0002] With the rapid development of my country's construction industry, how to achieve external wall insulation for high-rise and super high-rise buildings has become an important issue for energy conservation in industrial and civil buildings. Currently, the most common application is to add insulation boards to the base wall.
[0003] Existing exterior wall insulation panels are typically fixed to the exterior wall via adhesive and anchoring during installation. Before installation, a mortar leveling layer is applied to the exterior wall surface, and the insulation panels are then directly adhered to this layer. However, in practical use, the applicant has found that the aging and cracking of the leveling mortar significantly affects the connection stability and strength of the insulation panels, increasing the risk of detachment. Furthermore, the haphazard application of adhesive during installation can easily compromise the stability of the insulation panels. To address these issues, a new exterior wall anti-detachment structure is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide an external wall anti-detachment structure in order to solve the problems mentioned above.
[0005] The technical solution adopted by this utility model is as follows: an external wall anti-detachment structure, including an external wall body, multiple metal main boards and insulation boards, multiple connecting ears are welded on the upper and lower sides of the metal main boards, the connecting ears are fixedly installed on the external wall body by expansion bolts, the insulation boards are fixedly installed on the metal main boards by bolts, and multiple adhesive bonding points are provided at the joint between the insulation boards and the metal main boards.
[0006] The metal main board is provided with multiple glue positioning grooves.
[0007] In a preferred embodiment, the connecting lug has a mounting hole, a fixing expansion bolt passes through the mounting hole, and the outer wall has an insertion hole, the fixing expansion bolt is inserted into the insertion hole.
[0008] In a preferred embodiment, the surface of the exterior wall is provided with a mortar layer, the metal main plate and the connecting lug are both embedded in the mortar layer, the outer surface of the metal main plate is flush with the outer surface of the mortar layer, the thickness of the connecting lug is less than the thickness of the metal main plate, and the protruding head of the fixing expansion bolt does not protrude from the outer surface of the metal main plate.
[0009] In a preferred embodiment, protrusions are welded to both sides of the metal main plate, and threaded holes are formed on the protrusions. Multiple through holes are formed on the insulation plate, and hexagon socket bolts are threaded through the through holes and threadedly connected to the threaded holes.
[0010] In a preferred embodiment, the back of the insulation board is provided with a plurality of positioning grooves, which are inserted into the protrusions.
[0011] In a preferred embodiment, the outer surface of the insulation board is provided with a plurality of recessed grooves, the positioning grooves are connected to the recessed grooves through the through holes, and the bolt heads of the hexagonal socket bolts are embedded in the recessed grooves.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0013] 1. In this utility model, the insulation board is fixed to the metal main board by bolts and adhesive bonding, thereby fixing the insulation board to the exterior wall. This avoids unstable adhesion of the insulation board due to aging and cracking of the mortar layer, thus improving the connection strength of the insulation board and enhancing the anti-detachment performance of the exterior wall insulation board.
[0014] 2. In this utility model, the glue positioning groove facilitates glue application and bonding at the accurate position, thereby achieving standardized installation and avoiding personnel applying glue arbitrarily, which may affect the bonding strength of the insulation board. Attached Figure Description
[0015] Figure 1 This is a simplified schematic diagram of the front view of the present utility model;
[0016] Figure 2 This is a simplified side view of the structure of this utility model;
[0017] Figure 3 This is a simplified schematic diagram of the exploded three-dimensional structure of this utility model.
[0018] The markings in the diagram are: 1-exterior wall, 2-metal main board, 3-insulation board, 4-connecting ear, 5-adhesive connection point, 6-adhesive positioning groove, 7-mounting hole, 8-fixing expansion bolt, 9-insertion hole, 10-mortar layer, 11-protruding column, 12-threaded hole, 13-through hole, 14-hex socket head cap bolt, 15-positioning groove, 16-sunken groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] The following will combine Figures 1-3 A detailed description of an external wall anti-detachment structure according to an embodiment of the present utility model is provided.
[0021] Example:
[0022] This utility model provides an external wall anti-detachment structure, for reference. Figures 1 to 3 As shown, the structure includes an exterior wall 1, multiple metal main plates 2, and an insulation board 3. Multiple connecting ears 4 are welded to the upper and lower sides of the metal main plates 2. The connecting ears 4 are fixed to the exterior wall 1 using expansion bolts. The insulation board 3 is fixed to the metal main plates 2 using bolts. Multiple adhesive bonding points 5 are provided at the contact points between the insulation board 3 and the metal main plates 2. In this structure, the metal main plates 2 are first connected to the exterior wall 1 via the connecting ears 4. Then, personnel fix the insulation board 3 to the metal main plates 2 using bolts and adhesive bonding, thus fixing the insulation board 3 to the exterior wall 1. The entire insulation board 3 is adhered to the metal main plates 2, resulting in better adhesion stability, improved connection strength of the insulation board 3, and enhanced anti-detachment performance.
[0023] refer to Figures 1 to 3 As shown, the metal motherboard 2 is provided with multiple glue positioning grooves 6. This structure uses the glue positioning grooves 6 to facilitate glue application and bonding at accurate positions, thereby achieving standardized installation and avoiding personnel from applying glue arbitrarily, which would affect the connection effect.
[0024] refer to Figures 1 to 3 As shown, the connecting ear 4 has an installation hole 7, and a fixing expansion bolt 8 passes through the installation hole 7. The outer wall 1 has an insertion hole 9, and the fixing expansion bolt 8 is inserted into the insertion hole 9. In this structure, the insertion hole 9 is first opened on the outer wall, and then the fixing expansion bolt 8 is inserted into the insertion hole 9 after passing through the installation hole 7 of the connecting ear 4. Then, the personnel rotate the nut on the fixing expansion bolt 8 to lock the connecting ear 4 onto the outer wall 1.
[0025] refer to Figures 1 to 3As shown, a mortar layer 10 is provided on the surface of the exterior wall 1. The metal main plate 2 and the connecting lug 4 are both embedded in the mortar layer 10. The outer surface of the metal main plate 2 is flush with the outer surface of the mortar layer 10. The thickness of the connecting lug 4 is less than the thickness of the metal main plate 2, and the protruding head of the fixing expansion bolt 8 does not protrude from the outer surface of the metal main plate 2. In this structure, the mortar layer 10 plays the role of leveling the exterior wall. The metal main plate 2 is flush with the mortar layer 10, so that the insulation board 2 can be attached to the mortar layer 10. The connecting lug 4 and the fixing expansion bolt 8 can be embedded in the mortar layer 10, thereby avoiding the expansion bolt protruding and causing the insulation board 3 to be unable to be attached and installed.
[0026] refer to Figures 1 to 3 As shown, protrusions 11 are welded to both sides of the metal main plate 2. Threaded holes 12 are opened on the protrusions 11. Multiple through holes 13 are opened on the insulation plate 3. Hexagon socket bolts 14 pass through the through holes 13 and are threadedly connected to the threaded holes 12. In this structure, the hexagon socket bolts 14 pass through the through holes 13 of the insulation plate 3 and connect to the threaded holes 12 of the protrusions 11, thereby connecting the insulation plate 3 and the metal main plate 2 together by bolts.
[0027] refer to Figures 1 to 3 As shown, the back of the insulation board 3 is provided with multiple positioning grooves 15, which are inserted into the protrusions 11. In this structure, the positioning grooves 15 cooperate with the protrusions 11 to position the installation position of the insulation board 3.
[0028] refer to Figures 1 to 3 As shown, the outer surface of the insulation board 3 is provided with multiple recesses 16. The positioning groove 15 is connected to the recesses 16 through the through hole 13. The bolt head of the hexagon socket bolt 14 is embedded in the recesses 16. This structure uses the recesses 16 to prevent the thread head of the hexagon socket bolt 14 from protruding from the insulation board 3, thereby facilitating the construction of the next process of the exterior wall.
[0029] The implementation principle of an external wall anti-detachment structure according to an embodiment of this application is as follows: In use, first, an insertion hole 9 is opened on the external wall. Then, the fixing expansion bolt 8 is inserted into the insertion hole 9 after passing through the mounting hole 7 of the connecting ear 4. Then, the operator rotates the nut on the fixing expansion bolt 8 to lock the connecting ear 4 onto the external wall 1, thereby fixing the metal main plate 3 onto the external wall 1. Then, the operator applies a mortar layer 10 to the surface of the external wall 1. After the mortar layer 10 solidifies, the operator applies adhesive to the corresponding area of the metal main plate 3. Adhesive corners are made on the positioning groove 6 to form adhesive points 5. Then, the insulation board 3 is first attached to the mortar layer 10, and the positioning groove 15 of the insulation board 3 is inserted into the corresponding protrusion 11. Then, the personnel insert the hexagonal bolt 14 through the through hole 13 of the insulation board 3 and the threaded hole 12 of the protrusion 11 to connect the insulation board 3 and the metal main board 2 together by bolts. In this way, the insulation board 3 is stably fixed to the outer wall 1 by bolts and adhesive, which improves the connection strength of the insulation board 3 and improves the anti-detachment performance.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An external wall anti-detachment structure, comprising an external wall body (1), multiple metal main plates (2) and insulation boards (3), characterized in that: The metal main board (2) has multiple connecting ears (4) welded on its upper and lower sides. The connecting ears (4) are fixedly installed on the outer wall (1) by expansion bolts. The insulation board (3) is fixedly installed on the metal main board (2) by bolts. Multiple adhesive bonding points (5) are provided at the joint between the insulation board (3) and the metal main board (2). The metal main board (2) is provided with multiple glue positioning grooves (6).
2. The anti-detachment structure for exterior walls as described in claim 1, characterized in that: The connecting ear (4) has an installation hole (7), and a fixing expansion bolt (8) passes through the installation hole (7). The outer wall (1) has an insertion hole (9), and the fixing expansion bolt (8) is inserted into the insertion hole (9).
3. The anti-detachment structure for exterior walls as described in claim 2, characterized in that: The surface of the outer wall (1) is provided with a mortar layer (10). The metal main plate (2) and the connecting ear (4) are both embedded in the mortar layer (10). The outer surface of the metal main plate (2) is flush with the outer surface of the mortar layer (10). The thickness of the connecting ear (4) is less than the thickness of the metal main plate (2), and the protruding head of the fixing expansion bolt (8) does not protrude from the outer surface of the metal main plate (2).
4. The external wall anti-detachment structure as described in claim 1, characterized in that: Both sides of the metal main plate (2) are welded with protrusions (11), and threaded holes (12) are opened on the protrusions (11). Multiple through holes (13) are opened on the insulation plate (3). Hexagonal socket bolts (14) pass through the through holes (13) and are threadedly connected to the threaded holes (12).
5. The external wall anti-detachment structure as described in claim 4, characterized in that: The back of the insulation board (3) is provided with multiple positioning grooves (15), and the positioning grooves (15) are inserted into the protrusions (11).
6. The anti-detachment structure for exterior walls as described in claim 5, characterized in that: The outer surface of the insulation board (3) is provided with multiple recessed grooves (16), the positioning groove (15) is connected to the recessed grooves (16) through the through hole (13), and the bolt head of the internal hex bolt (14) is embedded in the recessed groove (16).