Self-tapping expansion anchor bolt assembly for anti-seepage outer wall of building thermal insulation system

Abstract

The utility model relates to the technical field of building workpieces, in particular to a self-tapping expansion anchor bolt assembly for an anti-leakage outer wall of a building heat preservation system, which comprises an expansion screw tube, an anchor bolt, an anchor rod and an anchor rod, the expansion screw pipe sequentially penetrates through the heat preservation layer, the waterproof layer and the wall body. The bearing part is arranged at the other end of the expansion screw tube, and the bearing part is used for being attached to the heat preservation layer; the embedded part is arranged on the side, facing the expansion screw pipe, of the bearing part, and the embedded part is embedded into the heat preservation layer; and the anchor nail is matched with the expansion screw tube and is positioned in the hollow part in the expansion screw tube. According to the anti-leakage outer wall self-tapping expansion anchor bolt assembly of the building heat preservation system, the anchor nail is inserted into the hollow position in the expansion screw pipe, the expansion screw pipe is extruded and expanded, the waterproof layer and the heat preservation layer are fastened to the wall body, the bearing part plays a role in supporting the heat preservation layer, the embedding part is embedded into the heat preservation layer, and therefore the heat preservation layer can be fixed. Therefore, the sealing and water seepage prevention functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building workpieces, in particular to a self-drilling expansion anchor bolt assembly for an anti-leakage exterior wall of a building insulation system. Background Art

[0002] As people demand higher comfort levels in buildings, in the existing technology, building exterior walls usually need to be covered with insulation boards. However, when anchoring the insulation boards, drilling holes usually creates gaps between the insulation boards and the anchor bolts, creating a risk of water seepage in the exterior walls. Utility Model Content

[0003] The utility model provides a self-drilling expansion anchor bolt assembly for leak-proof exterior walls of a building insulation system, which is used to solve the defect in the prior art that gaps are easily generated between the anchor bolt assembly and the insulation board, resulting in water seepage in the exterior wall, thereby enhancing the anti-seepage performance.

[0004] The utility model provides a self-drilling expansion anchor assembly for anti-leakage exterior walls of a building insulation system, comprising:

[0005] The expansion coil is hollow inside and has a barbed coil head at one end; and the expansion coil sequentially passes through the insulation layer, the waterproof layer and the wall;

[0006] A supporting portion is provided at the other end of the expansion spiral tube, and the supporting portion is used to fit with the thermal insulation layer;

[0007] An embedding portion is provided on a side of the supporting portion facing the expansion coil, and the embedding portion is embedded into the interior of the thermal insulation layer;

[0008] The anchor nail is adapted to the expansion spiral tube and is located in the inner hollow of the expansion spiral tube.

[0009] According to the utility model, a self-drilling expansion anchor assembly for leak-proof exterior walls of a building thermal insulation system is provided, wherein the supporting portion is a plastic disc.

[0010] According to the anti-leakage exterior wall self-drilling expansion anchor assembly of a building thermal insulation system provided by the utility model, the axis of the supporting portion is parallel to the axis of the expansion spiral tube.

[0011] According to the utility model, a self-drilling expansion anchor assembly for leak-proof exterior walls of a building thermal insulation system is provided, wherein the embedded portion includes one or more closed-shaped teeth.

[0012] According to the anti-leakage exterior wall self-drilling expansion anchor assembly of a building thermal insulation system provided by the utility model, the embedded portion is perpendicular to the plane where the supporting portion is located.

[0013] According to the utility model, a self-drilling expansion anchor assembly for leak-proof exterior walls of a building thermal insulation system is provided, wherein the expansion spiral tube, the supporting portion and the embedded portion are integrally connected.

[0014] According to the utility model, a self-drilling expansion anchor bolt assembly for leak-proof exterior walls of a building thermal insulation system is provided, wherein the anchor bolt is a self-drilling metal screw.

[0015] According to the utility model, a self-drilling expansion anchor assembly for anti-leakage exterior walls of a building insulation system is provided, wherein the anchor comprises:

[0016] A screw rod adapted to the barbed screw head;

[0017] a polished rod connected to one end of the screw rod;

[0018] A nut is connected to the other end of the polished rod, and the diameter of the nut is larger than that of the expansion coil, so that the nut is clamped on the outer side of the supporting part.

[0019] According to the utility model, a self-drilling expansion anchor assembly for leak-proof exterior walls of a building thermal insulation system is provided, wherein the supporting portion is in a hollow circular ring shape.

[0020] According to the utility model, a self-drilling expansion anchor assembly for leak-proof exterior walls of a building insulation system is provided, wherein the expansion coil and the anchor are covered with a decorative layer on the side facing away from the insulation layer.

[0021] The utility model provides a self-drilling expansion anchor assembly for the anti-seepage exterior wall of a building insulation system. The expansion screw is hollow inside, and a barbed screw head is provided at one end of the expansion screw. The expansion screw passes through the insulation layer, the waterproof layer and the wall in sequence; the supporting part is provided at the other end of the expansion screw, and the supporting part is used to fit with the insulation layer; the embedding part is provided on the side of the supporting part facing the expansion screw, and the embedding part is embedded in the interior of the insulation layer; the anchor nail is adapted to the expansion screw, and the anchor nail is located in the internal hollow part of the expansion screw. The expansion screw is squeezed and expanded to fasten the waterproof layer and the insulation layer to the wall, the supporting part plays a role in dragging the insulation layer, and the embedding part is embedded in the interior of the insulation layer, thereby achieving a sealing and anti-water seepage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is an exploded view of the anti-leakage exterior wall self-drilling expansion anchor assembly of the building insulation system provided by the utility model.

[0024] Figure 2 The utility model is a structural schematic diagram of the anti-leakage exterior wall self-drilling expansion anchor bolt assembly of the building thermal insulation system provided by the present invention in a state ready to be installed.

[0025] Figure 3 The utility model is a cross-sectional view of the installation structure of the self-drilling expansion anchor assembly for the anti-leakage exterior wall of the building insulation system.

[0026] Reference numerals:

[0027] 1. Expansion screw; 2. Barbed screw head; 3. Support part; 4. Embedded part; 5. Anchor; 51. Screw; 52. Bare rod; 53. Nut; 10. Insulation layer; 20. Waterproof layer; 30. Wall; 40. Decorative layer. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0030] The following combination Figure 1-Figure 3 The utility model is described as a self-drilling expansion anchor bolt assembly for leak-proof exterior walls of a building insulation system, which is used to solve the problem that the anchor bolt assembly in the prior art easily causes water seepage in the insulation layer.

[0031] like Figure 1-3 As shown, an embodiment of the utility model provides a self-drilling expansion anchor assembly for anti-leakage exterior walls of a building insulation system, which is used to fix the insulation layer 10 and the waterproof layer 20 on the wall 30. The anchor assembly includes an expansion screw 1, a barbed screw head 2, a supporting part 3 and an embedded part 4.

[0032] The expansion screw 1 is hollow inside, and a barbed screw head 2 is provided at one end of the expansion screw 1, which helps the anchor bolt to be firmly fixed to the wall 30 after installation to prevent it from loosening or pulling out. The expansion screw 1 passes through the insulation layer 10, the waterproof layer 20 and the wall 30 in sequence, ensuring that the anchor bolt assembly can extend into the interior of the wall 30 and provide stable support. The supporting portion 3 is provided at the other end of the expansion screw 1, and the supporting portion 3 is used to fit with the insulation layer 10 to provide a flat and stable support surface for the insulation layer 10. The embedded portion 4 is provided on the side of the supporting portion 3 facing the expansion screw 1, and the embedded portion 4 is embedded into the interior of the insulation layer 10, which can increase the connection strength between the anchor bolt assembly and the insulation layer 10, prevent the anchor bolt assembly from loosening or falling off during use, and achieve a sealing and anti-water seepage function. The anchor 5 is adapted to the expansion screw 1 and is located in the internal hollow part of the expansion screw 1. When the anchor 5 is screwed into the expansion screw 1, the anchor 5 will push the expansion screw 1 to be squeezed and expanded, thereby increasing the friction between the anchor bolt and the wall 30, making the anchor bolt assembly more firmly fixed in the wall 30, and fastening the waterproof layer 20 and the insulation layer 10 to the wall 30.

[0033] In a feasible embodiment of the present invention, the supporting portion 3 is a plastic disc. Plastic discs are lighter than other materials such as metal, which makes the installation process easier. At the same time, high-quality plastic materials can also provide sufficient strength and durability to meet the requirements of the building's exterior wall insulation system. The relatively low cost of plastic materials helps to reduce the production cost of the entire anchor assembly, thereby providing customers with a more competitive price. Plastic discs can be easily manufactured through molding processes such as injection molding, which helps to achieve mass production and ensure that the size and shape of each supporting portion 3 remain consistent. Plastic materials have good corrosion resistance, which means that the supporting portion 3 will not be corroded due to long-term exposure to the outdoor environment, thereby extending the service life of the anchor assembly. The design of the plastic disc allows it to fit better on the insulation layer, reducing gaps and unevenness during installation, and improving the accuracy and stability of installation.

[0034] In a feasible embodiment of the present invention, the axis of the supporting portion 3 is parallel to the axis of the expansion coil 1. Through the above arrangement, the entire anchor assembly can maintain a more stable structural state when subjected to stress, which helps to reduce deformation or damage caused by uneven stress, thereby improving the reliability and durability of the anchor assembly. The parallel axis design makes it easier to align and install the supporting portion 3 with the expansion coil 1. This helps to simplify the installation process, reduce installation time, and reduce the risk of failure due to improper installation. When the supporting portion 3 remains parallel to the expansion coil 1, they can jointly withstand the pressure from the insulation layer 10, the waterproof layer 20 and the wall 30. This design helps to ensure that the anchor assembly can evenly distribute pressure when subjected to stress, avoiding the occurrence of local overload or stress concentration.

[0035] In one possible embodiment of the present invention, the embedded portion 4 includes one or more closed-shaped teeth that engage with the insulation layer 10 to prevent water seepage. This not only enhances the structural strength of the embedded portion 4 but also allows for better embedding within the insulation layer 10. The closed-shaped teeth more effectively grip the insulation layer 10, preventing the anchor bolt from loosening or falling out during use. When the embedded portion 4 includes multiple closed-shaped teeth, the multiple teeth further increase the connection area and strength between the anchor bolt and the insulation layer 10, improving overall stability and reliability.

[0036] Additionally, the closed-shaped teeth can more effectively interact with the material of the insulation layer 10, generating greater friction, thereby enhancing the connection strength between the anchor assembly and the insulation layer 10. Due to the closed shape and multiple designs of the teeth, the anchor can be more stably fixed to the insulation layer 10 after installation, reducing the risk of deformation or damage caused by uneven force.

[0037] In a feasible embodiment of the present invention, the embedding portion 4 is perpendicular to the plane where the supporting portion 3 is located, so that the embedding portion 4 can be more effectively embedded in the interior of the insulation layer 10, thereby increasing the connection area and gripping force between the anchor bolt and the insulation layer 10, helping to prevent the anchor bolt from loosening or falling off during use, and improving overall stability and safety. The vertical design enables the embedding portion 4 to more effectively transfer force to the insulation layer 10 when subjected to force, avoiding the occurrence of local overload or stress concentration, helping to extend the service life of the anchor bolt, and reducing the risk of damage caused by uneven force. In addition, the vertically arranged embedding portion 4 can more easily adapt to insulation layers 10 of different thicknesses. By adjusting the length or shape of the embedding portion 4, it can be ensured that the anchor bolt can provide stable support and connection in insulation layers 10 of different thicknesses.

[0038] In one embodiment of the present invention, the expansion coil 1, support portion 3, and embedded portion 4 are integrally connected, which not only enhances the strength and stability of the structure but also simplifies the installation process and reduces installation costs. No additional assembly or connection steps are required during installation, greatly simplifying the installation process, improving installation efficiency, and reducing the risk of errors or damage during installation.

[0039] In one possible embodiment of the present invention, the anchor 5 is a self-tapping metal screw. This self-tapping metal screw has a unique thread design that allows it to be screwed directly into the interior of the expansion screw 1 without pre-drilling holes. This simplifies the installation process, improves installation efficiency, and reduces the additional costs and potential damage caused by drilling holes. Self-tapping metal screws are typically made of high-strength, corrosion-resistant metal materials such as stainless steel and alloy steel. These materials ensure that the screws have sufficient hardness and durability to withstand various harsh environmental conditions and long-term use pressure. Self-tapping metal screws are suitable for a variety of wall materials and thicknesses. Whether it is a concrete wall, a brick wall, or other wall types, self-tapping metal screws can provide a stable and reliable connection.

[0040] Participate again Figure 1 As shown, in a feasible embodiment of the present invention, the anchor 5 includes a screw 51, a polished rod 52 and a nut 53. The screw 51 is adapted to the barbed screw head 2, ensuring that the screw 51 can be smoothly screwed into the interior of the expansion screw 1 and form a firm connection therewith. The polished rod 52 is connected to one end of the screw 51 and is a transition portion between the screw 51 and the nut 53. The polished rod 52 is usually threadless, which helps to reduce friction resistance during installation, so that the anchor 5 can be more easily screwed into the expansion screw 1. The nut 53 is connected to the other end of the polished rod 52, and the diameter of the nut 53 is larger than the expansion screw 1, so that the nut 53 is clamped on the outside of the supporting portion 3, thereby fixing the anchor 5 and preventing it from loosening or falling off.

[0041] Through the connection between the screw rod 51 and the barbed screw head 2, and the clamping of the nut 53 on the outside of the supporting part 3, the anchor 5 can provide a stable and reliable connection point, which helps prevent the anchor bolt from loosening or falling off during use and ensures the stability of the overall structure.

[0042] See again Figure 1 and Figure 2 As shown, in a feasible embodiment of the present invention, the supporting portion 3 is a hollow ring type. This design not only reduces the weight of the supporting portion 3, but also increases the flexibility and toughness of the structure. In order to maintain the strength and durability of the supporting portion 3, despite the hollow design, it is still necessary to select high-strength, corrosion-resistant materials for manufacturing. The hollow ring design significantly reduces the weight of the supporting portion 3, making the entire anchor assembly lighter during installation and use, helping to reduce installation costs and improve work efficiency. Since the supporting portion 3 is hollow, it can better disperse stress when subjected to external forces, thereby enhancing the toughness and durability of the entire structure, and helping to prevent the supporting portion 3 from deformation or damage due to uneven force during long-term use.

[0043] In a feasible embodiment of the present invention, the side of the expansion coil 1 and the anchor 5 facing away from the insulation layer 10 is covered with a decorative layer 40. The decorative layer 40 mainly provides a decorative effect. The decorative layer 40 covers the surface of the expansion coil 1 and the anchor 5, making these components more coordinated with the surrounding environment and improving the overall aesthetics. The decorative layer 40 can also protect the expansion coil 1 and the anchor 5 by preventing these components from being directly exposed to the external environment, thereby avoiding the influence of adverse factors such as corrosion and wear, and extending their service life. In addition, by covering with the decorative layer 40, the expansion coil 1 and the anchor 5 can be more hidden after installation and less easily detected.

[0044] In summary, the utility model provides a self-drilling expansion anchor assembly for the anti-seepage exterior wall of a building insulation system, wherein the anchor 5 is a self-drilling metal screw, which is inserted into the expansion screw tube 1 and fits tightly against the inner wall to prevent water seepage, and the barbed screw head 2 is squeezed and expanded to fasten the waterproof layer 20 and the insulation layer 10 to the wall 30. The supporting part 3 and the expansion screw tube 1 are an integrated component, and the supporting part 3 plays the role of dragging the insulation layer 10, and the embedded part 4 is embedded in the insulation layer 10, thereby achieving a sealing and anti-seepage function.

[0045] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or modes and features of different embodiments or modes described in this specification without contradiction.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A self-drilling expansion anchor assembly for anti-leakage exterior walls of a building insulation system, characterized in that: include: The expansion spiral tube (1) is hollow inside, and one end of the expansion spiral tube (1) is provided with a barbed spiral tube head (2); and the expansion spiral tube (1) sequentially penetrates the insulation layer (10), the waterproof layer (20) and the wall (30); A supporting portion (3) is provided at the other end of the expansion spiral tube (1), and the supporting portion (3) is used to fit with the thermal insulation layer (10); An embedded portion (4) is provided on a side of the supporting portion (3) facing the expansion coil (1), and the embedded portion (4) is embedded into the interior of the thermal insulation layer (10); The anchor nail (5) is adapted to the expansion spiral tube (1) and is located in the inner hollow of the expansion spiral tube (1).

2. The anti-leakage exterior wall self-drilling expansion anchor assembly of the building insulation system according to claim 1, characterized in that: The supporting portion (3) is a plastic disc.

3. The anti-leakage exterior wall self-drilling expansion anchor assembly of the building insulation system according to claim 1, characterized in that: The axis of the supporting portion (3) is parallel to the axis of the expansion spiral tube (1).

4. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The embedded portion (4) includes one or more closed-shaped teeth.

5. The anti-leakage exterior wall self-drilling expansion anchor assembly of the building insulation system according to claim 4, characterized in that: The embedded portion (4) is perpendicular to the plane where the supporting portion (3) is located.

6. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The expansion coil (1), the supporting portion (3) and the embedded portion (4) are integrally connected.

7. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The anchor nail (5) is a self-tapping metal screw.

8. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The anchor (5) comprises: A screw (51) adapted to the barbed screw head (2); a polished rod (52) connected to one end of the screw rod (51); A nut (53) is connected to the other end of the polished rod (52), and the diameter of the nut (53) is larger than that of the expansion coil (1), so that the nut (53) is clamped on the outer side of the supporting portion (3).

9. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The supporting portion (3) is in the shape of a hollow circular ring.

10. The anti-leakage exterior wall self-drilling expansion anchor assembly for building thermal insulation system according to claim 1, characterized in that: The side of the expansion coil (1) and the anchor (5) facing away from the thermal insulation layer (10) is covered with a decorative layer (40).

Images