External wall thermal insulation anti-falling device and mounting method

Abstract

The invention discloses an external wall thermal insulation anti-falling device and a mounting method, and belongs to the technical field of building decoration. An outer wall insulation board is laid outside the base concrete, and expansion bolts are installed on the inner side; the expansion bolts are located between the adjacent outer wall heat preservation plates, metal plate strips with holes are further installed on the outer sides of the positions between the adjacent outer wall heat preservation plates, and connecting pieces and reinforcing pieces are installed on the metal plate strips with the holes. The connecting piece comprises a heat preservation nail, and the heat preservation nail is installed between the outer wall heat preservation plate and the base layer concrete. The reinforcing member comprises a metal concave box and an S-shaped hook, the metal concave box is used for fixing the perforated metal plate strip, and the S-shaped hook is used for connecting the perforated metal plate strip and the fine steel wire mesh, so that the problems that the outer wall insulation board is high in falling risk, uncontrollable in construction quality, poor in stability in strong wind weather, high in repair and maintenance cost and the like are solved.

Description

Technical Field

[0001] This invention relates to an external wall insulation anti-fall-off device and installation method, mainly used for fixing the external wall insulation board in the process of building high-rise building, and belongs to the field of building decoration and renovation technology. Background Technology

[0002] With the rapid advancement of urbanization and the proliferation of high-rise buildings, building energy conservation and safety have become a focal point of modern society. External wall insulation systems, as a key component in improving building energy efficiency, are increasingly important. However, this has been accompanied by the growing problem of external wall insulation detachment, a phenomenon that has become a prominent issue hindering the healthy development of the construction industry and threatening public safety, posing a challenge that cannot be ignored in the current era.

[0003] In actual engineering projects, traditional external wall insulation construction technology mainly relies on adhesive bonding to fix the insulation material. The reliability of this method is subject to a variety of factors, including the performance of the adhesive material, the treatment of the base concrete, and the expansion or contraction of the material. This leads to frequent accidents of insulation layer detachment, which poses a serious threat to people's lives and property.

[0004] The detachment of external wall insulation layers not only poses safety hazards but also incurs significant costs for subsequent maintenance. Traditional repair methods often require removing the original insulation layer and redoing it, which is time-consuming, labor-intensive, and expensive. Furthermore, frequent repairs and replacements waste resources and put pressure on the environment. Therefore, the problem of external wall insulation detachment has become a pressing technical challenge in the construction industry, as traditional adhesive methods are no longer sufficient to meet the safety requirements of external wall insulation for high-rise buildings.

[0005] Existing technical issues:

[0006] ① Risk of detachment: The insulation layer may detach due to insufficient bonding strength, material expansion or contraction, etc.

[0007] ② Construction quality issues: In traditional construction, the installation of the insulation layer depends on the technical level of the workers, making it difficult to guarantee quality. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and propose an external wall insulation anti-fall-off device and installation method to solve problems such as high risk of external wall insulation board falling off, uncontrollable construction quality, poor stability in strong winds, and high repair and maintenance costs. This invention discloses an external wall insulation anti-fall-off device, comprising a base concrete layer and an external wall insulation board, wherein the external wall insulation board is laid on the outside of the base concrete layer and expansion bolts are installed on the inner side;

[0009] Expansion bolts are located between adjacent exterior wall insulation boards. Perforated metal strips are also installed on the outer side between adjacent exterior wall insulation boards, and connectors and reinforcements are installed on the perforated metal strips.

[0010] The connector includes insulation nails, and insulation nails are installed between the external wall insulation board and the base concrete.

[0011] The reinforcement includes a metal concave box and an S-shaped hook. The metal concave box is used to fix the perforated metal strip, and the S-shaped hook is used to connect the perforated metal strip and the fine wire mesh.

[0012] In a further technical solution, one end of the expansion bolt is fixed to the metal concave box, and the other end passes through the metal concave box and the external wall insulation board and is embedded in the base concrete.

[0013] A fine wire mesh is installed on the outside of the metal concave box for closure.

[0014] In a further technical solution, the external wall insulation board is bonded to the base concrete, and the bonding area accounts for no less than 30% of the total bonding area.

[0015] The insulation nails are installed at the four corners and the middle of the exterior wall insulation board.

[0016] In a further technical solution, the perforated metal strip is made of galvanized steel or stainless steel with a thickness of not less than 0.5mm, and its width matches the thickness of the external wall insulation board; the perforated metal strip is bent at both ends of the external wall insulation board and abuts against the outside of the external wall insulation board.

[0017] In a further technical solution, the perforated metal strip has directional holes and circular holes, and the external wall insulation board has corresponding square holes at the corresponding directional holes for fixing and installing the metal concave box.

[0018] The circular hole is connected to the S-shaped hook.

[0019] In a further technical solution, the fine wire mesh is installed by covering the perforated metal strip upwards, and an alkali-resistant fiberglass mesh is laid on top.

[0020] In a further technical solution, the metal concave box includes a frame body, and a mounting hole is provided in the frame body, the mounting hole being used to abut against the end of the expansion bolt;

[0021] An abutment block is installed outside the mounting hole. A slider is provided on one side of the abutment block. A sliding groove is provided inside the frame. The slider is adapted to the sliding groove.

[0022] The frame body has an insertion hole, and the outer side of the abutment block is provided with an insertion cone. The insertion cone is used to insert into the exterior wall insulation board. The abutment block is inclined towards the side facing the expansion bolt. The adjusting nut installed at the end of the expansion bolt is suitable for pressing the abutment block outward when tightened until it pushes the insertion cone into the exterior wall insulation board.

[0023] An installation method for an external wall insulation anti-fall-off device includes the following steps:

[0024] Step 1: Laying exterior wall insulation boards

[0025] A1. Initial bonding and fixing of external wall insulation boards: The external wall insulation boards are initially bonded and fixed using one of the following methods: spot bonding, full bonding, or spot-frame bonding.

[0026] The bonding area shall not be less than 30%;

[0027] The bonding material should be a special bonding mortar compatible with the insulation material, and should be prepared and used in accordance with the design requirements and product instructions; when pasting, ensure that the external wall insulation board is tightly bonded to the base concrete, and check the flatness and verticality of the external wall insulation board to keep the deviation within the allowable range.

[0028] A2. Temporarily fix the external wall insulation board using insulation nails:

[0029] Temporarily fix the exterior wall insulation board by installing insulation nails at the four corners and the middle part to ensure that the exterior wall insulation board will not shift or fall off during subsequent construction; the length of the insulation nails should be selected according to the actual thickness of the exterior wall insulation board and the base concrete material to ensure that the depth of the nails into the base concrete meets the specifications.

[0030] Step 2: Install the perforated metal strip

[0031] B1. Install prefabricated perforated metal strips according to the location and design requirements of the external wall insulation board; the perforated metal strips are made of galvanized steel or stainless steel with a thickness of not less than 0.5mm, and their width matches the thickness of the external wall insulation board, and several pre-reserved square and round holes are made on the perforated metal strips; among them, the size of the square holes matches the size of the metal concave box.

[0032] B2. Cutting the exterior wall insulation board: Use a cutting tool to cut the exterior wall insulation board down to the base concrete at the pre-reserved square hole in the perforated metal strip to form a through hole of the same size as the square hole.

[0033] B3. Install metal recessed boxes: Install metal recessed boxes at the through holes in the base concrete; the metal recessed boxes are made of the same metal material as the perforated metal strip, and their dimensions should match the reserved square holes and through holes.

[0034] B4. Fixing the Metal Concave Box: Use expansion bolts to firmly fix the metal concave box to the base concrete; the specifications of the expansion bolts should be selected according to the size of the metal concave box and the condition of the base concrete to ensure a firm and reliable connection; the perforated metal strip is tightly connected to the base concrete through the metal concave box;

[0035] Step 3: Leveling the exterior wall surface

[0036] C1. Install fine wire mesh: Connect the fine wire mesh to the circular holes on the underside of the perforated metal strip using S-shaped hooks; ensure the length and bending angle of the S-shaped hooks are securely connected to the perforated metal strip.

[0037] C2. First coat of waterproof mortar leveling: Use waterproof mortar for the first coat of leveling; during the leveling process, cover the original perforated metal strip with fine wire mesh to ensure that the fine wire mesh is tightly bonded to the perforated metal strip and the external wall insulation board; then, lay alkali-resistant fiberglass mesh on a large area of ​​the external wall, overlapping the alkali-resistant fiberglass mesh according to the design requirements, and embed it into the waterproof mortar with a trowel;

[0038] C3. Re-fixing of external wall insulation boards and perforated metal strips: Re-fix the external wall insulation boards and perforated metal strips with insulation nails; the specifications and quantity of insulation nails shall meet the design requirements, with no less than 7 insulation nails per square meter for sections below 20m and no less than 9 insulation nails per square meter for sections above 20m; the insulation nails shall be evenly distributed and shall ensure that the depth of penetration into the base concrete meets the specifications.

[0039] C4. Second layer of crack-resistant mortar leveling: After the first layer of waterproof mortar has initially set, the second layer of crack-resistant mortar leveling is carried out; the crack-resistant mortar is tightly bonded to the first layer of waterproof mortar; the leveling layer should be flat, smooth, and free of hollow areas and cracks.

[0040] C5. Subsequent construction procedures: Subsequent construction procedures shall be carried out according to traditional processes; the construction of subsequent procedures shall comply with the requirements of relevant standards and specifications, and the construction quality shall be ensured.

[0041] Compared with the prior art, the present invention can achieve the following technical effects:

[0042] (1) The external wall insulation anti-falling device and installation method of the present invention can effectively prevent the external wall insulation board from falling off. The perforated metal plate belt fixing structure can avoid injury or property damage to pedestrians, vehicles or surrounding facilities.

[0043] (2) The external wall insulation anti-fall-off device and installation method of the present invention have a more reliable and stable molding quality than traditional external wall insulation boards, which further improves the installation quality of external wall insulation boards.

[0044] (3) By adopting the external wall insulation anti-falling device and installation method of the present invention, the later maintenance cost can be reduced, a lot of labor can be saved, and the cost of external wall sub-projects can be saved.

[0045] (4) The external wall insulation board, insulation nail, perforated metal strip, metal concave box and expansion bolt in the external wall insulation anti-fall device and installation method of the present invention are all common materials, which are easy to construct and further reduce the later maintenance cost.

[0046] (5) By introducing a perforated metal plate fixing device, the present invention further optimizes the installation process, improves the installation quality, and makes the installation quality of the external wall insulation board more reliable. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A schematic diagram of the molded surface of the external wall insulation anti-fall-off device;

[0049] Figure 2 for Figure 1 Enlarged view of part A;

[0050] Figure 3 This is a schematic diagram of the surface of the result of step 1 of the present invention;

[0051] Figure 4 A side view diagram of the installation of the external wall insulation anti-fall-off device;

[0052] Figure 5 for Figure 4 Enlarged view of part B;

[0053] Figure 6 This is a side view schematic diagram of the present invention, showing a single perforated metal strip installed on an external wall insulation board;

[0054] Figure 7 This is a cross-sectional view of another type of concave metal box according to the present invention.

[0055] In the diagram: 1. Base concrete; 2. Exterior wall insulation board; 3. Insulation nails; 4. Perforated metal strip; 5. Metal concave box; 6. Expansion bolt; 7. Fine wire mesh; 8. S-shaped hook; 9. Alkali-resistant fiberglass mesh.

[0056] 51. Frame-shaped body; 52. Mounting hole; 53. Abutment block; 54. Slide groove; 55. Sliding block; 56. Insertion hole; 57. Insertion cone; 61. Adjusting nut. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0058] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0059] Example 1

[0060] like Figure 1-6 As shown, this is one embodiment of the present invention, an external wall insulation anti-fall-off device, including a base concrete 1 and an external wall insulation board 2, with the external wall insulation board 2 laid on the outside of the base concrete 1 and expansion bolts 6 installed on the inside.

[0061] Expansion bolts 6 are located between adjacent exterior wall insulation boards 2. Perforated metal strips 4 are also installed on the outer side between adjacent exterior wall insulation boards 2, and connectors and reinforcements are installed on the perforated metal strips 4.

[0062] The connector includes insulation nails 3, and insulation nails 3 are installed between the external wall insulation board 2 and the base concrete 1;

[0063] The reinforcement includes a metal concave box 5 and an S-shaped hook 8. The metal concave box 5 is used to fix the perforated metal strip 4, and the S-shaped hook 8 is used to connect the perforated metal strip 4 and the fine wire mesh 7.

[0064] In a further technical solution, one end of the expansion bolt 6 is fixed to the metal concave box 5, and the other end passes through the metal concave box 5 and the external wall insulation board 2 and is embedded in the base concrete 1.

[0065] A fine steel wire mesh 7 is installed on the outside of the metal concave box 5 for closure.

[0066] The external wall insulation board 2 is bonded to the base concrete 1, and the bonding area accounts for no less than 30% of the total bonding area.

[0067] The insulation nails 3 are installed at the four corners and the middle of the exterior wall insulation board 2.

[0068] In a further technical solution, the perforated metal strip 4 is made of galvanized steel or stainless steel with a thickness of not less than 0.5mm, and its width matches the thickness of the external wall insulation board 2; the perforated metal strip 4 is bent at both ends of the external wall insulation board 2 and abuts against the outside of the external wall insulation board 2.

[0069] In a further technical solution, the perforated metal strip 4 has directional holes and circular holes, and the external wall insulation board 2 has corresponding square holes at the corresponding directional holes for fixing and installing the metal concave box 5.

[0070] The circular hole is connected to the S-shaped hook 8.

[0071] During installation, the fine steel wire mesh 7 is placed upwards over the perforated metal strip 4, and an alkali-resistant fiberglass mesh section 9 is laid on top.

[0072] An installation method for an external wall insulation anti-fall-off device includes the following steps:

[0073] Step 1: Laying the exterior wall insulation board 2

[0074] A1. Initial bonding and fixing of external wall insulation board 2: The external wall insulation board 2 is initially bonded and fixed by one of the following methods: spot bonding, full bonding or spot-frame bonding.

[0075] The bonding area shall not be less than 30%;

[0076] The bonding material should be a special bonding mortar compatible with the insulation material, and should be prepared and used in accordance with the design requirements and product instructions; when pasting, ensure that the external wall insulation board 2 is tightly bonded to the base concrete 1, and check the flatness and verticality of the external wall insulation board 2 to keep the deviation within the allowable range.

[0077] A2. Temporarily fix the external wall insulation board 2 with insulation nails 3:

[0078] Temporarily fix the exterior wall insulation board 2 with insulation nails 3 at the four corners and the middle part to ensure that the exterior wall insulation board 2 will not shift or fall off during subsequent construction. The length of the insulation nails 3 should be selected according to the thickness of the exterior wall insulation board 2 and the material of the base concrete 1 to ensure that the depth of the nails into the base concrete 1 meets the specifications.

[0079] Step 2: Install the perforated metal strip 4

[0080] B1. According to the location and design requirements of the external wall insulation board 2, install the prefabricated perforated metal strip 4; the perforated metal strip 4 is made of galvanized steel plate or stainless steel plate with a thickness of not less than 0.5mm, and its width matches the thickness of the external wall insulation board 2, and several pre-reserved square and round holes are opened on the perforated metal strip 4; among them, the size of the square hole matches the size of the metal concave box 5;

[0081] B2. Cutting the exterior wall insulation board 2: At the pre-reserved square hole in the perforated metal strip 4, use a cutting tool to cut the exterior wall insulation board 2 down to the base concrete 1 to form a through hole of the same size as the square hole.

[0082] B3. Install metal recessed box 5: Install metal recessed box 5 at the through hole of base concrete 1; metal recessed box 5 is made of the same metal material as perforated metal strip 4, and its size should match the reserved square hole and through hole.

[0083] B4. Fixing the metal concave box 5: Use expansion bolts 6 to firmly fix the metal concave box 5 to the base concrete 1; the specifications of the expansion bolts 6 are selected according to the size of the metal concave box 5 and the condition of the base concrete 1 to ensure a firm and reliable connection; the perforated metal strip 4 is tightly connected to the base concrete 1 through the metal concave box 5.

[0084] Step 3: Leveling the exterior wall surface

[0085] C1. Install fine wire mesh 7: Connect the fine wire mesh 7 to the circular holes on the underside of the perforated metal strip 4 using S-shaped hooks 8; the length and bending angle of the S-shaped hooks 8 should ensure that the fine wire mesh 7 is firmly connected to the perforated metal strip 4.

[0086] C2. First coat of waterproof mortar leveling: Use waterproof mortar for the first coat of leveling; during the leveling process, cover the original perforated metal strip 4 with fine wire mesh 7 to ensure that the fine wire mesh 7 is tightly bonded to the perforated metal strip 4 and the external wall insulation board 2; then, lay alkali-resistant fiberglass mesh 9 on a large area of ​​the external wall, overlap the alkali-resistant fiberglass mesh 9 according to the design requirements, and embed it into the waterproof mortar with a trowel;

[0087] C3. Re-fix the exterior wall insulation board 2 and the perforated metal strip 4: Re-fix the exterior wall insulation board 2 and the perforated metal strip 4 with insulation nails 3; the specifications and quantity of insulation nails 3 shall meet the design requirements, with no less than 7 insulation nails 3 per square meter for sections below 20m and no less than 9 insulation nails 3 per square meter for sections above 20m; the insulation nails 3 shall be evenly distributed and shall ensure that the depth of penetration into the base concrete 1 meets the specification requirements;

[0088] C4. Second layer of crack-resistant mortar leveling: After the first layer of waterproof mortar has initially set, the second layer of crack-resistant mortar leveling is carried out; the crack-resistant mortar is tightly bonded to the first layer of waterproof mortar; the leveling layer should be flat, smooth, and free of hollow areas and cracks.

[0089] C5. Subsequent construction procedures: Subsequent construction procedures shall be carried out according to traditional processes; the construction of subsequent procedures shall comply with the requirements of relevant standards and specifications, and the construction quality shall be ensured.

[0090] Reference Figures 1 to 4This application implements an external wall insulation anti-fall-off device and installation method, which connects the perforated metal strip 4 to the external wall base concrete 1 by expansion bolts 6, thereby strengthening the external wall insulation board 2 that has been fixed with traditional insulation nails 3, and avoiding injury or property damage to pedestrians, vehicles or surrounding facilities.

[0091] Reference Figure 1 , Figure 2 This is a schematic diagram of the installation of the external wall insulation anti-fall-off device. After the external wall insulation board 2 is laid on the base concrete 1, it is temporarily fixed with insulation nails 3. Figure 3 As shown; then, the external wall insulation board 2 is horizontally reinforced in sections using perforated metal strips 4. The external wall insulation board is precisely cut to the base concrete 1 using a cutting tool according to the pre-drilled square holes in the perforated metal strip 4. Metal recessed boxes 5 are installed in the pre-drilled square holes and firmly fixed to the base concrete 1 using expansion bolts 6, forming a reliable mechanical fixing system. Then, the fine wire mesh 7 is connected to the circular holes on the lower side of the perforated metal strip 4 using small S-shaped hooks 8. The first leveling process is then performed using waterproof plastering mortar. During leveling, the fine wire mesh 7 should be placed upwards, covering the original position of the perforated metal strip 4, to ensure a tight bond between the fine wire mesh 7, the perforated metal strip 4, and the external wall insulation board 2. Then, alkali-resistant fiberglass mesh 9 is laid on a large area of ​​the external wall and embedded into the waterproof plastering mortar with a trowel. Finally, the external wall insulation board 2 and the perforated metal strip 4 are re-fixed using insulation nails 3, completing the installation of the external wall insulation anti-fall-off device. The subsequent procedures are the same as those for ordinary exterior wall finishes, and will not be repeated in this article.

[0092] Reference Figure 6 This diagram illustrates the installation method and corner installation of the external wall insulation anti-fall-off device. At the corner of the base concrete 1, a perforated metal plate 4 is extended 300mm and mechanically fixed with expansion bolts.

[0093] Example 2

[0094] like Figure 7 As shown, another embodiment of the present invention is provided. Based on embodiment 1, the metal concave box 5 includes a frame body 51, and a mounting hole 52 is provided in the frame body 51. The mounting hole 52 is used to abut against the end of the expansion bolt 6.

[0095] An abutment block 53 is installed outside the mounting hole 52. A slider 55 is provided on one side of the abutment block 53. A sliding groove 54 is provided inside the frame body 51. The slider 55 is adapted to the sliding groove 54.

[0096] The frame 51 has an insertion hole 56, and the outer side of the abutment block 53 is provided with an insertion cone 57, which is used to insert into the external wall insulation board 2. The abutment block 53 is inclined towards the expansion bolt 6. The adjusting nut 61 installed at the end of the expansion bolt 6 is adapted to press the abutment block 53 outward when tightened until the insertion cone 57 is pushed into the external wall insulation board 2.

[0097] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0098] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An external wall insulation anti-fall-off device, characterized in that, Includes base concrete (1) and external wall insulation board (2), with external wall insulation board (2) laid on the outside of base concrete (1) and expansion bolts (6) installed on the inside. Expansion bolts (6) are located between adjacent exterior wall insulation boards (2). Perforated metal strips (4) are also installed on the outer side between adjacent exterior wall insulation boards (2), and connectors and reinforcements are installed on the perforated metal strips (4). The connector includes insulation nails (3), and insulation nails (3) are installed between the external wall insulation board (2) and the base concrete (1). The reinforcement includes a metal concave box (5) and an S-shaped hook (8). The metal concave box (5) is used to fix the perforated metal strip (4), and the S-shaped hook (8) is used to connect the perforated metal strip (4) and the fine wire mesh (7).

2. The external wall insulation anti-fall-off device according to claim 1, characterized in that, One end of the expansion bolt (6) is fixed to the metal concave box (5), and the other end passes through the metal concave box (5) and the external wall insulation board (2) and is embedded in the base concrete (1); A fine wire mesh (7) is installed on the outside of the metal concave box (5) for closure.

3. The external wall insulation anti-fall-off device according to claim 1, characterized in that, The external wall insulation board (2) is bonded to the base concrete (1), and the bonding area accounts for no less than 30% of the total bonding area; The insulation nails (3) are installed at the four corners and the middle of the exterior wall insulation board (2).

4. The external wall insulation anti-fall-off device according to claim 1, characterized in that, The perforated metal strip (4) is made of galvanized steel or stainless steel with a thickness of not less than 0.5mm, and its width matches the thickness of the external wall insulation board (2); the perforated metal strip (4) is bent at both ends of the external wall insulation board (2) and abuts against the outside of the external wall insulation board (2).

5. The external wall insulation anti-fall-off device according to claim 1, characterized in that, The perforated metal strip (4) has directional holes and circular holes, and the external wall insulation board (2) has corresponding square holes at the corresponding directional holes for fixing and installing the metal concave box (5). The circular hole is connected to the S-shaped hook (8).

6. The external wall insulation anti-fall-off device according to claim 1, characterized in that, During installation, the fine wire mesh (7) covers the perforated metal strip (4) upwards and is covered with an alkali-resistant fiberglass mesh (9).

7. The external wall insulation anti-fall-off device according to claim 1, characterized in that, The metal concave box (5) includes a frame body (51), and a mounting hole (52) is provided in the frame body (51). The mounting hole (52) is used to abut against the end of the expansion bolt (6). An abutment block (53) is installed outside the mounting hole (52). A slider (55) is provided on one side of the abutment block (53). A groove (54) is provided inside the frame body (51). The slider (55) is adapted to the groove (54). The frame (51) has a insertion hole (56), and the outer side of the abutment block (53) is provided with a cone (57). The cone (57) is used to insert into the exterior wall insulation board (2). The abutment block (53) is inclined towards the expansion bolt (6). The adjusting nut (61) installed at the end of the expansion bolt (6) is suitable for pressing the abutment block (53) outward when tightened until the cone (57) is pushed into the exterior wall insulation board (2).

8. A method for installing an external wall insulation anti-fall-off device, comprising the external wall insulation anti-fall-off device as described in claim 7, characterized in that, Includes the following steps: Step 1: Laying the exterior wall insulation board (2) A1. Preliminary pasting and fixing of external wall insulation board (2): The external wall insulation board (2) is initially pasted and fixed by one of the following methods: spot pasting, full pasting or spot frame pasting. The bonding area shall not be less than 30%; The bonding material is a special bonding mortar compatible with the insulation material, and should be prepared and used in accordance with the design requirements and product instructions; when pasting, ensure that the external wall insulation board (2) is tightly attached to the base concrete (1), and check the flatness and verticality of the external wall insulation board (2) so that the deviation is controlled within the allowable range; A2. Use insulation nails (3) to temporarily fix the external wall insulation board (2): Temporarily fix the external wall insulation board (2) by installing insulation nails (3) at the four corners and the middle part to ensure that the external wall insulation board (2) will not shift or fall off during subsequent construction; the length of the insulation nails (3) should be selected according to the actual thickness of the corresponding external wall insulation board (2) and the base concrete (1) material to ensure that the depth of nailing into the base concrete (1) meets the specifications. Step 2: Install the perforated metal strip (4) B1. According to the location and design requirements of the external wall insulation board (2), install the prefabricated perforated metal strip (4); the perforated metal strip (4) is made of galvanized steel plate or stainless steel plate with a thickness of not less than 0.5mm, and its width matches the thickness of the external wall insulation board (2), and several reserved square and round holes are opened on the perforated metal strip (4); among them, the size of the square hole matches the size of the metal concave box (5); B2. Cut the exterior wall insulation board (2): Use a cutting tool to cut the exterior wall insulation board (2) down to the base concrete (1) at the reserved square hole of the perforated metal strip (4) to form a through hole with the same size as the square hole. B3. Install metal concave box (5): Install metal concave box (5) at the through hole of the base concrete (1); the metal concave box (5) is made of the same metal material as the perforated metal strip (4), and its size should match the reserved square hole and through hole. B4. Fixing the metal concave box (5): Use expansion bolts (6) to firmly fix the metal concave box (5) to the base concrete (1); the specifications of the expansion bolts (6) are selected according to the size of the metal concave box (5) and the condition of the base concrete (1) to ensure a firm and reliable connection; the perforated metal strip (4) is tightly connected to the base concrete (1) through the metal concave box (5); Step 3: Leveling the exterior wall surface C1. Install fine wire mesh (7): Connect the fine wire mesh (7) to the circular hole on the lower side of the perforated metal strip (4) using S-shaped hooks (8); the length and bending angle of the S-shaped hooks (8) ensure that the fine wire mesh (7) is firmly connected to the perforated metal strip (4); C2. First coat of waterproof mortar leveling: Use waterproof mortar for the first coat of leveling; during the leveling process, cover the original perforated metal strip (4) with fine wire mesh (7) to ensure that the fine wire mesh (7) is tightly bonded to the perforated metal strip (4) and the external wall insulation board (2); then, lay alkali-resistant fiberglass mesh (9) on a large area of ​​the external wall, overlap the alkali-resistant fiberglass mesh (9) according to the design requirements, and embed it into the waterproof mortar with a trowel; C3. Re-fixing of the exterior wall insulation board (2) and the perforated metal strip (4): The exterior wall insulation board (2) and the perforated metal strip (4) are re-fixed with insulation nails (3); the specifications and quantity of the insulation nails (3) meet the design requirements, with no less than 7 insulation nails (3) per square meter for areas below 20m and no less than 9 insulation nails (3) per square meter for areas above 20m; the insulation nails (3) should be evenly distributed and should ensure that the depth of penetration into the base concrete (1) meets the specification requirements; C4. Second layer of crack-resistant mortar leveling: After the first layer of waterproof mortar has initially set, the second layer of crack-resistant mortar leveling is carried out; the crack-resistant mortar is tightly bonded to the first layer of waterproof mortar; the leveling layer should be flat, smooth, and free of hollow areas and cracks. C5. Subsequent construction procedures: Subsequent construction procedures shall be carried out according to traditional processes; the construction of subsequent procedures shall comply with the requirements of relevant standards and specifications, and the construction quality shall be ensured.

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