Waterproof anchor bolt for external thermal insulation and construction method

Abstract

The present application relates to the technical field of external wall thermal insulation and waterproofing, and particularly relates to a waterproof anchor bolt for external thermal insulation and a construction method. The anchor pipe of the waterproof anchor bolt comprises a first pipe section and a second pipe section. The first pipe section is an expansion pipe with an expansion joint, and has a relatively small diameter. The second pipe section has a relatively large diameter, and is connected to the first pipe section at one end and has an opening at the other end with an anchor disc outside. The second pipe section is provided with grouting holes of different sizes that penetrate in the radial direction. A flow guide device is provided outside the second pipe section. The waterproof anchor bolt for external thermal insulation and the construction method provided by the present application use a grouting gun and a conical grouting gun head to press flowable waterproofing material into the anchor pipe. The flowable waterproofing material flows into the gap between the anchor bolt and the external wall base layer and the external thermal insulation material through the grouting holes on the anchor pipe, the expansion joint, and the flow guide device outside the anchor pipe, forming a ring-shaped waterproofing material layer around the anchor bolt. This seals the waterproofing layer on the surface of the external wall base layer that has been damaged by the anchor bolt hole, and improves the waterproofing performance of the wall and the anchoring force of the anchor bolt.

Description

Technical Field

[0001] This invention relates to the field of building exterior wall insulation and waterproofing technology, and in particular to a waterproof anchor for exterior insulation and its construction method. Background Technology

[0002] With social development and the continuous improvement of living standards, people's requirements for waterproofing of building exterior walls are constantly increasing. They demand not only waterproofing at specific points but also overall waterproofing of the entire exterior wall. However, most residential buildings require external insulation systems. During the construction of these systems, drilling and anchor bolt installation are often necessary to secure the insulation boards. If the overall waterproofing layer is first applied to the surface of the exterior wall base layer inside the insulation system, and then the insulation system is installed, the drilling process during anchor bolt installation will inevitably damage the integrity of the waterproofing layer on the inner base layer, thus compromising its waterproofing function.

[0003] Traditional anchors used in conventional external insulation systems lack waterproofing capabilities. Their anchor tubes have a uniform diameter and are fitted with anchors of the same length that penetrate the entire length of the tube. Improved insulating anchors exist, employing anchor tubes with varying diameters. The anchor is inserted through the larger diameter end of the tube into the smaller diameter end, causing the smaller diameter portion to expand radially and provide anchoring force. The larger diameter portion can be plugged or injected with foam material to provide insulation. However, these anchors also lack waterproofing. A segmented external wall waterproofing and insulation anchor structure is also disclosed, but its waterproof embedded plate and screw assembly require pre-embedding. These components are easily damaged when the insulation board penetrates the screw during installation, and the disc-shaped fasteners are difficult to install with the screw, hindering widespread adoption. The existing technology also discloses a chemical waterproof anchoring structure for external wall insulation, but the chemical agent is pre-embedded in a porous sleeve, which is not only difficult to manufacture, but also the fixed dosage is difficult to meet the variable needs of various base layers on site. Summary of the Invention

[0004] This invention provides a waterproof anchor for external insulation and a construction method to solve the defect in the prior art where the installation of anchors in the external insulation system of the exterior wall damages the waterproof layer, resulting in poor waterproof performance.

[0005] This invention provides a waterproof anchor for external thermal insulation, comprising: An anchor pipe, comprising a first pipe section, a second pipe section, and an anchor plate, wherein the first pipe section is an expansion pipe with an expansion joint; the second pipe section has a larger diameter than the first pipe section, and one end is connected to the first pipe section, while the other end is open and equipped with the anchor plate; and the second pipe section is provided with grouting holes of different sizes that penetrate radially. An anchor bolt, which passes through the second pipe section and is then installed in the first pipe section; A flow guiding device is provided outside the grouting hole of the second pipe section; The opening in the second section of the anchor pipe is used to insert the grouting gun head.

[0006] According to the waterproof anchor bolt for external thermal insulation of the present invention, a plurality of grouting holes are provided along the circumference of the second pipe section, and the inner diameter of the grouting holes gradually decreases from the top circumferential end of the second pipe section to the bottom circumferential end of the second pipe section.

[0007] According to the present invention, the waterproof anchor bolt for external insulation has a directional mark on the anchor plate so that the grouting hole with the largest inner diameter is located at the top of the anchor pipe.

[0008] According to the waterproof anchor bolt for external insulation of the present invention, the grouting holes are arranged in multiple rows along the axial direction of the second pipe section.

[0009] According to the waterproof anchor bolt for external insulation of the present invention, the flow guiding device is folded and tied to the outside of the anchor pipe, and the flow guiding device is flared when opened.

[0010] According to the present invention, the waterproof anchor for external insulation has a conical or stepped grouting nozzle to block the retreat of the fluid waterproof material.

[0011] The present invention also provides a construction method for a waterproof anchor bolt for external thermal insulation according to the present invention, comprising: After inserting the anchor pipe into the anchor bolt hole on the base layer, insert the grouting gun head into the opening of the second pipe section and press it down to block the retreat path of the fluid waterproof material. When the grouting gun is started, the fluid waterproof sealant enters the second pipe section through the grouting gun head under the grouting pressure. It flows through the grouting hole, expansion joint, and flow guiding device into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material, forming a ring-shaped waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the base layer of the external wall and its surface that has been damaged by the anchor hole.

[0012] The construction method of the waterproof anchor for external thermal insulation provided by the present invention includes: When the base layer is a hard material such as concrete, after inserting the anchor pipe into the anchor bolt hole on the base layer, first install the anchor nail in the first pipe section, then insert the grouting gun head into the opening of the second pipe section and press it down to block the retreat path of the fluid waterproof material. When the grouting gun is started, the fluid waterproof sealant enters the second pipe section through the grouting gun head under the grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole and the guiding device, forming a ring-shaped waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the surface of the base layer of the external wall that has been damaged by the anchor hole.

[0013] The construction method of the waterproof anchor for external thermal insulation provided by the present invention includes: When the base layer is a lightweight material such as aerated concrete, after inserting the anchor pipe into the anchor bolt hole on the base layer, insert the grouting gun head into the opening of the second pipe section and press it down to block the retreat path of the fluid waterproof material. Start the grouting gun. Under the grouting pressure, the fluid waterproof sealant enters the second pipe section through the grouting gun head. It flows through the grouting hole, expansion joint, and diversion device into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material. Then, the anchor is installed in the first pipe section after passing through the second pipe section, forming a ring-shaped waterproof sealant layer around the waterproof anchor for external insulation. This seals the waterproof layer on the base layer of the external wall and its surface that has been damaged by the anchor hole and improves the anchoring force.

[0014] The construction method for waterproof anchors for external thermal insulation provided by the present invention further includes: During the process of injecting fluid waterproof sealant, the insulation board is tapped to make the injected fluid waterproof sealant bond with the base layer and its surface waterproof layer. During the injection of fluid waterproof sealant, the injection pressure is controlled and an infrared imager is used to meet the waterproof sealing requirements of different working conditions.

[0015] This invention provides a waterproof anchor for external thermal insulation and its construction method. The waterproof anchor for external thermal insulation includes: an anchor tube, an anchor nail, and a flow guiding device. The anchor tube comprises a first section, a second section, and an anchor plate. The first section is an expansion tube with an expansion joint; the second section has a larger diameter than the first section, and one end is connected to the first section, while the other end is open and equipped with an anchor plate; the second section has radially penetrating grouting holes of different sizes; the anchor nail is installed in the first section; the flow guiding device is located outside the grouting holes of the second section; the opening of the second section of the anchor tube is used to insert a grouting gun head. This invention provides a waterproof anchor for external thermal insulation and a construction method thereof. Using a grouting gun and a conical grouting gun head, a fluid waterproof material is injected into the anchor pipe. Through the grouting holes on the anchor pipe, expansion joints, and a flow guiding device outside the anchor pipe, the fluid waterproof material flows into the gaps between the anchor, the external wall substrate, and the external thermal insulation material, forming a ring-shaped waterproof material layer around the anchor. This seals the waterproof layer on the external wall substrate and its surface damaged by the anchor hole, improving the waterproof performance of the wall and the anchoring force of the anchor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a waterproof anchor pipe provided in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram showing the distribution of the first grouting hole, the second grouting hole, the third grouting hole, and the fourth grouting hole provided in one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the anchor plate provided in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of an anchor bolt assembly provided in one embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the flow guiding device provided in one embodiment of the present invention.

[0022] Figure label: 1. Anchor pipe; 2. Anchor nail; 3. Flow guiding device; 4. Grouting gun head; 11. First pipe section; 12. Second pipe section; 13. Anchor plate; 111. Expansion joint; 121. Grouting hole; 1211. First grouting hole; 1212. Second grouting hole; 1213. Third grouting hole; 1214. Fourth grouting hole; 131. Direction mark; 132. Through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 this embodiment and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this embodiment.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0027] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The following is combined Figures 1-3 This invention describes a waterproof anchor bolt for external thermal insulation. The waterproof anchor bolt for external thermal insulation includes: an anchor tube 1, an anchor bolt 2, and a flow guiding device 3.

[0029] The anchor pipe 1 includes a first pipe section 11, a second pipe section 12, and an anchor plate 13. The first pipe section 11 is an expansion pipe with an expansion joint 111. The diameter of the second pipe section 12 is larger than that of the first pipe section 11, and one end is connected to the first pipe section 11, while the other end is open and equipped with an anchor plate 13. The second pipe section 12 is provided with grouting holes 121 of different sizes that penetrate radially. The anchor nail 2 passes through the second pipe section 12 and is installed in the first pipe section 11. The flow guiding device 3 is located outside the grouting holes 121 of the second pipe section 12. The opening of the second pipe section 12 of the anchor pipe 1 is used to insert the grouting gun head 4.

[0030] Specifically, the anchor pipe 1 adopts a two-section structure with different pipe diameters, namely a first pipe section 11 with a smaller pipe diameter and a second pipe section 12 with a larger pipe diameter. The left end of the second pipe section 12 is connected and connected to the right end of the first pipe section 11. The right end of the second pipe section 12 is an open end, and an anchor plate 13 is set at its open end. The first pipe section 11 of the anchor pipe 1 is used to insert the anchor nail 2 so as to achieve anchoring through the expansion of the anchor pipe 1. The open end of the anchor pipe 1 is used to insert the grouting gun head 4, and grouting is performed through the second pipe section 12 and the grouting hole 121.

[0031] It should be understood that the diameter of the second pipe section 12 should meet the size requirements of the anchor 2, providing a grouting channel on the one hand and a channel for the anchor 2 to pass through on the other.

[0032] The waterproof anchor bolt for external insulation of the present invention is based on the heat insulation anchor bolt. A grouting hole 121 is provided radially through the larger diameter part of the anchor pipe 1 (i.e. the second pipe section 12). By injecting fluid waterproof material into the anchor pipe 1, the waterproofing needs are met, and it also has the function of heat insulation, which is highly efficient and energy-saving.

[0033] Furthermore, the axis of the grouting hole 121 is perpendicular to the axis of the anchor pipe 1, that is, the grouting hole 121 is perpendicular to the anchor pipe 1.

[0034] When anchor pipes are actually assembled and used: After inserting the anchor pipe 1 into the anchor bolt hole on the base layer, insert the grouting gun head 4 into the opening of the second pipe section 12 and press it down to block the retreat path of the fluid waterproof material. When the grouting gun is started, the fluid waterproof sealant enters the second pipe section 12 through the grouting gun head 4 under the grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole 121, the expansion joint 111 and the flow guiding device 3, forming an annular waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the base layer of the external wall and its surface that has been damaged by the anchor hole.

[0035] In addition, during the process of injecting waterproofing material, tapping the insulation board can help the injected fluid waterproofing material to better integrate with the original waterproofing layer on the base surface; by controlling the injection pressure, the waterproofing and sealing requirements of different working conditions (the diameter of the anchor bolt holes, the distance between the base and the insulation material, vary greatly between different projects and different parts of the same project) can be met.

[0036] This invention provides a waterproof anchor for external thermal insulation and its construction method. The waterproof anchor for external thermal insulation includes: an anchor tube, an anchor nail, and a flow guiding device. The anchor tube comprises a first section, a second section, and an anchor plate. The first section is an expansion tube with an expansion joint; the second section has a larger diameter than the first section, and one end is connected to the first section, while the other end is open and equipped with an anchor plate; the second section has radially penetrating grouting holes of different sizes; the anchor nail is installed in the first section; the flow guiding device is located outside the grouting holes of the second section; the opening of the second section of the anchor tube is used to insert a grouting gun head. This invention provides a waterproof anchor for external thermal insulation and a construction method thereof. Using a grouting gun and a conical grouting gun head, a fluid waterproof material is injected into the anchor pipe. Through the grouting holes on the anchor pipe, expansion joints, and a flow guiding device outside the anchor pipe, the fluid waterproof material flows into the gaps between the anchor, the external wall substrate, and the external thermal insulation material, forming a ring-shaped waterproof material layer around the anchor. This seals the waterproof layer on the external wall substrate and its surface damaged by the anchor hole, improving the waterproof performance of the wall and the anchoring force of the anchor.

[0037] In one embodiment of the present invention, multiple grouting holes 121 are provided along the circumference of the second pipe segment 12, and the inner diameter of the grouting holes 121 gradually decreases from the top to the bottom of the second pipe segment 12. In this embodiment, multiple grouting holes 121 are provided along the circumference of the second pipe segment 12, thereby ensuring that the fluid waterproofing material flows rapidly in the circumferential direction to fill the gaps in different directions on the outside of the anchor bolt, so as to ensure uniform filling of the fluid waterproofing material. Furthermore, due to gravity, the diameter of the grouting hole 121 at the top of the circumference is larger than that at the bottom of the circumferential direction. During grouting, the grouting flow rate at the top is greater, and the fluid waterproofing material can spread to both sides and the bottom under its own gravity, thereby ensuring uniform filling around the anchor pipe.

[0038] In one embodiment of the present invention, a first grouting hole 1211, a second grouting hole 1212, a third grouting hole 1213, and a fourth grouting hole 1214 are sequentially provided from one end to the other in the circumferential direction of the second pipe section 12, and the inner diameters of the first grouting hole 1211, the second grouting hole 1212, the third grouting hole 1213, and the fourth grouting hole 1214 decrease sequentially. Figure 3In the illustrated embodiment, four sets of grouting holes are provided. The first grouting hole 1211 and the fourth grouting hole 1214 are symmetrical, and the second grouting hole 1212 and the third grouting hole 1213 are symmetrical. The second grouting hole 1212 is located on both sides below the first grouting hole 1211, and the third grouting hole 1213 is located on both sides above the fourth grouting hole 1214. Thus, in the circumferential direction of the second pipe section 12, from the top end to the bottom end, the first grouting hole 1211, the second grouting hole 1212, the third grouting hole 1213, and the fourth grouting hole 1214 are arranged in descending order of pipe diameter. That is, the first grouting hole 1211 is the largest grouting hole 121, the second grouting hole 1212 is the second largest grouting hole 121, the third grouting hole 1213 is the smaller grouting hole 121, and the fourth grouting hole 1214 is the smallest grouting hole 121. Of course, depending on the actual situation, other quantities, distributions, and different diameters of grouting holes 121 can also be set.

[0039] In one embodiment of the present invention, a direction mark 131 is provided on the anchor plate 13 so that the grouting hole 121 with the largest inner diameter is located at the top of the anchor pipe 1. In this embodiment, the direction of the grouting holes 121 with different diameters is identified by providing the direction mark 131 on the anchor plate 13. In the above embodiment, it is preferable to set the grouting hole 121 with the largest diameter at the top of the anchor pipe 1. Therefore, it is preferable to provide an upward or downward direction mark 131 on the anchor plate 13, so as to facilitate the construction personnel to identify and rotate the anchor pipe 1 so that the first grouting hole 1211 is located at the top of the anchor pipe 1.

[0040] In one embodiment of the present invention, the anchor plate 13 is also provided with a plurality of through holes 132, through which the mortar of the protective layer flows into the through holes and connects with the insulation board, thereby increasing the contact area between the mortar and the insulation board, making the structural connection more stable, and avoiding the problem of hollowing.

[0041] In one embodiment of the present invention, multiple rows of grouting holes 121 are arranged along the axial direction of the second pipe segment 12. Preferably, three rows of grouting holes 121 are arranged along the axial direction of the second pipe segment 12 to ensure uniform and sufficient grouting. It is understood that, depending on actual needs, other numbers of rows of grouting holes 121 can be arranged along the axial direction of the second pipe segment 12 to meet waterproofing requirements.

[0042] In one embodiment of the present invention, the waterproof anchor for external insulation further includes a flow guiding device 3, which is disposed on the outside of the anchor tube 1. The flow guiding device 3, as an optional feature, is used to guide the flowable waterproof material into the gap between the anchor and the external wall base and the external insulation material by providing the flow guiding device 3 on the outside of the anchor tube 1.

[0043] In one embodiment of the present invention, the flow guiding device 3 is folded and tied to the outside of the anchor pipe 1, and the flow guiding device 3 is flared when opened. In this example, the flow guiding device 3 has a flared flow opening, that is, one end is the larger end and the other end is the smaller end. During the assembly of the flow guiding device 3, the thinner diameter section of the flow guiding device 3 is tightly fixed to the outer side of the anchor pipe 1 using tape or the like, and the thicker diameter section of the flow guiding device 3 is temporarily fixed to the outer side of the anchor pipe 1 using paper strips, water, glue, etc.

[0044] In one embodiment of the present invention, the grouting gun head 4 is conical or stepped to block the retreat path of the fluid waterproof material.

[0045] The present invention also provides a construction method for a waterproof anchor for external insulation provided in the above-described embodiments of the present invention, comprising: After inserting the anchor pipe 1 into the anchor bolt hole on the base layer, insert the grouting gun head 4 into the opening of the second pipe section 12 and press it down to block the retreat path of the fluid waterproof material. When the grouting gun is started, the fluid waterproof sealant enters the second pipe section 12 through the grouting gun head 4 under the grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole 121, the expansion joint 111 and the flow guiding device 3, forming an annular waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the base layer of the external wall and its surface that has been damaged by the anchor hole.

[0046] In one embodiment of the present invention, when the base layer is a hard material such as concrete, after inserting the anchor pipe 1 into the anchor bolt hole on the base layer, the anchor nail 2 is first installed in the first pipe section 11, and then the grouting gun head 4 is inserted into the opening of the second pipe section 12 and pressed down to block the retreat path of the fluid waterproof material; the grouting gun is started, and the fluid waterproof sealant enters the second pipe section 12 through the grouting gun head 4 under the action of grouting pressure, and flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole 121 and the flow guiding device 3, forming an annular waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the surface of the base layer of the external wall damaged by the anchor bolt hole.

[0047] In one embodiment of the present invention, when the base layer is a lightweight material such as aerated concrete, after the anchor pipe 1 is inserted into the anchor bolt hole on the base layer, the grouting gun head 4 is inserted into the opening of the second pipe section 12 and pressed down to block the retreat path of the fluid waterproof material; the grouting gun is started, and the fluid waterproof sealant enters the second pipe section 12 through the grouting gun head 4 under the action of grouting pressure, flows through the grouting hole 121, the expansion joint 111 and the flow guiding device 3, and flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material. Then, the anchor 2 is installed in the first pipe section 11 after passing through the second pipe section 12, forming an annular waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer of the base layer of the external wall and its surface damaged by the anchor bolt hole and improving the anchoring force.

[0048] In one embodiment of the present invention, during the injection of the fluid waterproof sealant, the insulation board is tapped to integrate the injected fluid waterproof sealant with the base layer and its surface waterproof layer; during the injection of the fluid waterproof sealant, the injection pressure is controlled and an infrared imager is used to meet the waterproof sealing requirements of different working conditions.

[0049] This invention provides a specific embodiment of a waterproof anchor bolt for external thermal insulation, comprising: a variable-diameter hollow anchor tube (i.e., anchor tube 1 in the above embodiment), an anchor 2, a horn-shaped flow guiding device (i.e., flow guiding device 3 in the above embodiment), and a conical grouting gun head (i.e., grouting gun head 4 in the above embodiment). The anchor plate on the hollow anchor tube is provided with through holes and direction marks, and the hollow anchor tube is provided with grouting holes of various sizes.

[0050] The specific construction steps are as follows: First, construct and cure the waterproof layer on the building's exterior wall substrate as required. Then, attach insulation boards to the exterior wall where the waterproof layer has already been applied, ensuring the distance between the inner surface of the insulation board and the surface of the waterproof layer is 10-30mm, depending on the flatness of the substrate. Drill anchor bolt holes through the insulation board using an electric drill or hammer drill. The inner diameter of the anchor bolt hole should be slightly larger than the outer diameter of the anchor bolt, and the length of the anchor bolt hole should exceed the designed anchoring depth.

[0051] Choose the length of the hollow anchor pipe such that the length of its coarse section is approximately equal to the distance between the outer surface of the insulation board and the surface of the waterproof layer on the outer wall base, i.e., the grouting hole is located between the insulation board and the base; and make the length of its fine section approximately equal to the anchoring depth required by the design.

[0052] Around the grouting hole of the hollow anchor pipe, as needed, the narrow section of the flow guiding device is tightly fixed to the outside of the hollow anchor pipe using tape or similar materials, while the wide section of the flow guiding device is temporarily fixed to the outside of the hollow anchor pipe using paper strips, water, glue, etc. The flow guiding device is an optional feature.

[0053] Insert the hollow anchor pipe through the insulation board into the anchor bolt hole, ensuring the largest grouting hole faces upwards according to the direction markings on the anchor plate. Press the anchor plate down onto the insulation board or fiberglass mesh.

[0054] Install anchor bolts. The length of the anchor bolt is slightly shorter than the length of the narrowest section of the hollow anchor tube. During anchor bolt installation, the narrowest section of the hollow anchor tube expands, allowing the anchor bolt to fit tightly against the building's exterior wall, thereby providing anchoring force.

[0055] Using a grouting gun, a certain viscosity of fluid waterproof material is injected into the hollow anchor tube of the anchor bolt through the conical grouting gun head. The fluid waterproof material flows into the gap between the anchor bolt and the outer wall base + external insulation material through multiple rows of grouting holes on the hollow anchor tube and the large diameter section opened by the flow guiding device, forming a ring-shaped waterproof material layer around the anchor bolt, thereby sealing the waterproof layer on the surface of the outer wall base that has been damaged by the anchor bolt holes.

[0056] The variable-diameter hollow anchor pipe and anchor plate can be made of materials such as plastic and nylon; the anchor nail should preferably be a countersunk metal screw; the horn-shaped flow guiding device can be made of polyethylene film, pre-formed into an umbrella shape, and folded up and pre-fixed to the outside of the hollow anchor pipe; the conical grouting gun head can be made of materials such as plastic and nylon; the direction marking on the anchor plate should preferably be an upward or downward mark.

[0057] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A waterproof anchor bolt for external thermal insulation, characterized in that, include: An anchor pipe (1) includes a first pipe section (11), a second pipe section (12), and an anchor plate (13). The first pipe section (11) is an expansion pipe with an expansion joint (111). The second pipe section (12) has a diameter larger than that of the first pipe section (11), and one end is connected to the first pipe section (11), while the other end is open and equipped with the anchor plate (13). Grouting holes (121) of different sizes are provided on the second pipe section (12) through the radial direction. Anchor (2), which passes through the second pipe section (12) and is installed in the first pipe section (11); A flow guiding device (3) is provided outside the grouting hole (121) of the second pipe section (12); The opening of the second section (12) of the anchor pipe (1) is used to insert the grouting gun head (4).

2. The waterproof anchor bolt for external thermal insulation according to claim 1, characterized in that, Multiple grouting holes (121) are provided along the circumference of the second pipe section (12), and the inner diameter of the grouting holes (121) gradually decreases from the top circumferential end of the second pipe section (12) to the bottom circumferential end of the second pipe section (12).

3. The waterproof anchor bolt for external thermal insulation according to claim 1 or 2, characterized in that, A direction mark (131) is provided on the anchor plate (13) so that the grouting hole (121) with the largest inner diameter is located at the top of the anchor pipe (1).

4. The waterproof anchor for external thermal insulation according to claim 2, characterized in that, The grouting holes (121) are arranged in multiple rows along the axial direction of the second pipe section (12).

5. The waterproof anchor for external thermal insulation according to claim 1, characterized in that, The flow guiding device (3) is folded and tied to the outside of the anchor pipe (1), and the flow guiding device (3) is horn-shaped when it is opened.

6. The waterproof anchor for external thermal insulation according to claim 1, characterized in that, The grouting gun head (4) is conical or stepped, used to block the retreat path of the fluid waterproof material.

7. A construction method for a waterproof anchor bolt for external thermal insulation according to any one of claims 1-6, characterized in that, include: After inserting the anchor pipe (1) into the anchor bolt hole on the base layer, insert the grouting gun head (4) into the opening of the second pipe section (12) and press it down to block the retreat path of the fluid waterproof material; When the grouting gun is started, the fluid waterproof sealant enters the second pipe section (12) through the grouting gun head (4) under the action of grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole (121), expansion joint (111) and flow guiding device (3), forming an annular waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the base layer of the external wall and its surface that was damaged by the anchor hole.

8. The construction method of the waterproof anchor for external thermal insulation according to claim 7, characterized in that, include: When the base layer is a hard material such as concrete, after inserting the anchor pipe (1) into the anchor bolt hole on the base layer, first install the anchor nail (2) in the first pipe section (11), and then insert the grouting gun head (4) into the opening of the second pipe section (12) and press it down to block the retreat path of the fluid waterproof material. When the grouting gun is started, the fluid waterproof sealant enters the second pipe section (12) through the grouting gun head (4) under the action of grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole (121) and the flow guiding device (3), forming a ring-shaped waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer on the surface of the base layer of the external wall that is damaged by the anchor hole.

9. The construction method of the waterproof anchor for external thermal insulation according to claim 7, characterized in that, include: When the base layer is a lightweight material such as aerated concrete, after inserting the anchor pipe (1) into the anchor bolt hole on the base layer, insert the grouting gun head (4) into the opening of the second pipe section (12) and press it down to block the retreat path of the fluid waterproof material. Start the grouting gun. The fluid waterproof sealant enters the second pipe section (12) through the grouting gun head (4) under the action of grouting pressure. It flows into the gap between the waterproof anchor for external insulation and the base layer of the external wall and the external insulation material through the grouting hole (121), expansion joint (111) and flow guiding device (3). Then, the anchor (2) is installed in the first pipe section (11) after passing through the second pipe section (12), forming a ring-shaped waterproof sealant layer around the waterproof anchor for external insulation, thereby sealing the waterproof layer of the base layer of the external wall and its surface that is damaged by the anchor hole and improving the anchoring force.

10. The construction method of the waterproof anchor for external thermal insulation according to claim 9, characterized in that, Also includes: During the process of injecting fluid waterproof sealant, the insulation board is tapped to make the injected fluid waterproof sealant bond with the base layer and its surface waterproof layer. During the injection of fluid waterproof sealant, the injection pressure is controlled and an infrared imager is used to meet the waterproof sealing requirements of different working conditions.

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