Split metal anchor

Abstract

The utility model relates to building anchorage member technical field especially relates to a split type metal anchorage member, include: detachable installation's anchoring gasket and flange type expansion contraction pipe, the utility model discloses have flange type expansion contraction pipe cooperation anchoring gasket, use, the anchoring gasket is covered on the expansion pipe, makes the pressurized rib surface of gasket and rock wool board surface close contact, forms the occlusal interface, ensures the fixed stable of heat preservation layer, then adopts air nail gun and enters the two -piece type expansion end of flange type expansion contraction pipe rear section pipe fitting no.

Description

Technical Field

[0001] This utility model relates to the field of building anchor technology, and in particular to a split-type metal anchor. Background Technology

[0002] Building exterior wall insulation is an important measure to improve building energy efficiency and indoor comfort. It reduces energy consumption by reducing heat transfer, and insulation materials are fixed with anchors during installation.

[0003] Currently, split-type metal anchors for lightweight thermal insulation materials can achieve efficient and stable fixing of insulation materials in scenarios such as building energy conservation and decoration, while effectively reducing building energy consumption and improving the overall performance of the building.

[0004] However, current anchors still have the following drawbacks:

[0005] 1) Plastic expansion tube anchors: These anchors are mostly made of plastic materials such as polyvinyl chloride (PVC) or polypropylene (PP), which have relatively low strength. Under long-term exposure to wind, sun, and changes in temperature and humidity, they are prone to aging, leading to anchor breakage and failure, and increasing the risk of insulation layer detachment. Actual engineering tests have shown that after 5-8 years of use, the tensile strength of some plastic expansion tube anchors decreased by more than 50%.

[0006] 2) Metal anchors: Although metal anchors are superior to plastic anchors in terms of strength, due to the good thermal conductivity of metal, the use of metal anchors will form thermal bridges in the insulation layer. Heat is quickly conducted through the metal anchors, which greatly increases the building's energy consumption. Studies have shown that the heat loss at the thermal bridge parts of building exterior walls using ordinary metal anchors can increase the overall heat transfer coefficient of the exterior wall by 20% to 30%. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a split-type metal anchor to solve the technical problems mentioned above.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A split-type metal anchor includes: a separable anchoring gasket and a flanged expansion and contraction tube. The flanged expansion and contraction tube includes a flange, a first fitting, and a second fitting. One end of the first fitting is fixedly connected to the flange, and the other end of the first fitting is connected to the second fitting. Both the first and second fittings are hollow tubes with a central core. The inner sidewalls of both the first and second fittings have concave constriction openings with ribs. The inner sidewalls of both the first and second fittings also have radial injection holes.

[0010] Furthermore, each of the inner sidewalls of the first pipe fitting has a through groove, and the inner sidewalls of the second pipe fitting have multiple sets of through grooves.

[0011] Furthermore, the end of the second pipe fitting away from the first pipe fitting is provided with a tapered constriction, and the constriction cone angle ranges from thirteen degrees to seventeen degrees.

[0012] Furthermore, the flange is coated with an insulating coating made of polyurethane material with a thickness of 0.2 to 0.5 mm. The flange has multiple mounting holes inside, located on the outside of the pipe fitting.

[0013] Furthermore, the side of the anchoring pad that contacts the wall is provided with multiple sets of annular reinforcing ribs, and a micro boss is provided at the center to fit into the wall.

[0014] The beneficial effects of this utility model are:

[0015] By using a flanged expansion and contraction tube with anchoring gaskets, the anchoring gaskets are fitted onto the expansion tubes during use, ensuring that the ribbed surface of the gaskets is in close contact with the surface of the rock wool board, forming an interlocking interface to ensure the stable fixation of the insulation layer. Then, a special nail is driven into the two-piece expansion end of the flanged expansion and contraction tube fitting two using a pneumatic nail gun. The impact of the nail causes the expansion end to expand radially, further locking the flanged expansion and contraction tube fitting two, making the anchoring gasket firmly connected to the building substrate. This results in a tensile strength of ≥1.5kN for the anchoring gasket, which can withstand greater external forces compared to traditional plastic anchors, effectively ensuring the safety of the insulation layer and reducing the risk of insulation layer detachment. As part of the split metal anchor, the anchoring gasket is responsible for direct contact with the fixed structure and bearing the main load, thereby ensuring the effective installation and stable performance of the entire anchor. The flange of the flanged expansion and contraction tube provides a reliable installation platform for fixing the positions of fitting one and fitting two, while the processing dimensions and shape ensure the accuracy of installation. Attached Figure Description

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

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the split-type metal anchor.

[0018] Figure 2 This is a schematic diagram of the assembly structure of this split-type metal anchor embodiment;

[0019] Figure 3This is a partial cross-sectional schematic diagram of the flange-type expansion and contraction tube in this embodiment of the split-type metal anchor.

[0020] The markings in the diagram are as follows: 1. Anchor gasket; 2. Flanged expansion and contraction pipe; 201. Flange; 202. Fitting 1; 203. Fitting 2; 204. Injection hole; 205. Recessed neck of reinforcing rib; 206. Through groove 1; 207. Through groove 2. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0025] Please see Figure 1-3As shown, a split-type metal anchor includes: a separable anchoring gasket 1 and a flanged expansion and contraction tube 2. The flanged expansion and contraction tube 2 includes a flange 201, a first fitting 202, and a second fitting 203. One end of the first fitting 202 is fixedly connected to the flange 201, and the other end of the first fitting 202 is connected to the second fitting 203. Both the first fitting 202 and the second fitting 203 are hollow tubes with a central core. The inner sidewalls of both the first fitting 202 and the second fitting 203 have recessed constriction ribs 205. Each component also has radial injection holes 204. The modular design of the split structure saves 30% of transportation space and facilitates transportation and storage. On the construction site, different specifications of components can be quickly selected and combined according to actual needs without complicated processing and adjustment, which improves construction efficiency and shortens the construction cycle. Multiple specifications of anchoring pads 1 and expansion tubes, as well as composite anchoring methods, can be used to support the anchoring of various building substrates such as concrete, masonry, and steel structures. It has a wide range of applications and meets the needs of different types of construction projects.

[0026] Specifically, taking the installation of a 100mm thick rock wool board as an example, based on the thickness of the rock wool board and project requirements, an 80mm anchoring gasket 1 and an L100mm flange-type expansion and contraction tube 2 are selected. A special drilling device is used to drill installation holes in the building substrate that match the expansion tube, ensuring that the hole depth and diameter meet the requirements. The L100mm flange-type expansion and contraction tube 2 is inserted into the installation hole, allowing the wedge-shaped expansion tube in the middle section to gradually wedge into the building substrate, initially fixing the expansion tube. Epoxy resin is injected through the injection hole 204 at the rear of the expansion tube using a special injection device, filling the gap between the expansion tube and the installation hole and enhancing chemical adhesion. A 4mm diameter special nail is driven into the two-piece expansion end at the rear of the expansion tube using a pneumatic nail gun. The impact of the nail causes radial expansion at the expansion end, further tightening the expansion tube and ensuring a firm connection between the anchor and the building substrate. The Φ80mm anchor gasket 1 is fitted onto the expansion tube, ensuring tight contact between the ribbed surface of the gasket and the surface of the rock wool board, forming an interlocking interface to ensure stable fixation of the insulation layer. The flanged expansion and contraction tube 2, in conjunction with the anchor gasket 1, ensures that the tensile strength of the anchor gasket 1 is ≥1.5kN. Compared to traditional plastic anchors, it can withstand greater external forces, effectively guaranteeing the safety of the insulation layer and reducing the risk of insulation layer detachment. As part of the split metal anchor, the anchor gasket 1 is responsible for direct contact with the fixed structure and bearing the main load, thus ensuring the effective installation and stable performance of the entire anchor. The flange 201 of the flanged expansion and contraction tube 2 provides a reliable installation platform for fixing the positions of fitting 202 and fitting 203, while ensuring installation accuracy through processing dimensions and shape.

[0027] In this embodiment, the inner sidewall of pipe fitting 202 is provided with through groove 206, and the inner sidewall of pipe fitting 203 is provided with multiple sets of through groove 207. The end of pipe fitting 203 away from pipe fitting 202 is provided with a tapered constriction, and the constriction cone angle ranges from thirteen degrees to seventeen degrees.

[0028] Specifically, the fitting has a through groove 206 to facilitate the rolling and forming of raw materials, and multiple through grooves 207 to facilitate the outward expansion and anchoring of the fitting. The fitting 202 is designed as an axially open expanding wedge. After being inserted into the installation hole, the expanding wedge expands under external force to achieve wedge-type mechanical anchoring, tightly bonding with the building substrate and providing reliable anchoring force. The fitting 203 adopts a two-piece expansion end with internal pressure ribs and constriction. This structural design is compatible with nail and pneumatic nail injection installation methods. Under the impact of the nail, the two-piece expansion end undergoes radial deformation with an expansion rate of ≥30%, further enhancing the anchoring effect. At the same time, the fitting 203 also has an axial hollow channel and a radial glue injection hole 204 to support chemical anchoring. Epoxy resin and other adhesives can be injected through the glue injection hole 204 to achieve a composite anchoring method of mechanical and chemical anchoring.

[0029] The flange 201 is coated with an insulating coating made of polyurethane material with a thickness of 0.2 to 0.5 mm. The flange 201 has multiple mounting holes inside, located on the outside of the pipe fitting 202. Multiple sets of mounting holes are used to facilitate the fixing of the flange.

[0030] Specifically, the polyurethane insulation coating on the surface of flange 201 significantly reduces the thermal bridging effect. Tests show that the heat transfer coefficient at the thermal bridge location is reduced by 70%, effectively reducing heat loss from the building, improving its energy efficiency, and lowering energy consumption. Flange 201 with an insulation coating, the coating thickness controlled between 0.2 and 0.5 mm, and the use of low thermal conductivity materials such as polyurethane (≤0.03 W / (m·K)) effectively blocks thermal bridges and reduces heat conduction through flange 201. Thermal performance tests show that this insulation coating can reduce the heat transfer coefficient at the thermal bridge location by more than 70%.

[0031] The side of the anchoring pad 1 that contacts the wall is provided with multiple sets of annular reinforcing bars, and a micro boss is provided at the center to fit into the wall.

[0032] Specifically, the surface is provided with a ring-shaped porous rib structure. The ring-shaped ribs can effectively enhance the bending strength of the gasket, making it less prone to deformation when subjected to external forces. The porous design increases the contact area between the gasket and the finishing material, improves the adhesion of the finishing material, and prevents the finishing material from falling off. According to mechanical tests, the bending strength of the gasket with the ring-shaped porous rib structure is more than 40% higher than that of ordinary gaskets. The use of bosses facilitates the initial fixing of the anchor gasket 1. The anchor gasket 1 is available in various diameter specifications, including Φ50mm, Φ80mm, and Φ100mm, which can be flexibly selected according to factors such as the size of the insulation layer area, the stress conditions, and the characteristics of the finishing material, ensuring a stable force transfer between the anchor gasket 1 and the insulation layer. The flange 201 is available in various length specifications, including L80mm, L120mm, and L160mm, which can be adapted to insulation layers of different thicknesses to meet the anchoring requirements of insulation layers with thicknesses ranging from 30 to 200mm.

[0033] In summary, compared with existing technologies, this metal anchor has at least the following advantages: By incorporating a flanged expansion and contraction tube 2 in conjunction with an anchoring gasket 1, during use, the anchoring gasket 1 is fitted onto the expansion tube, ensuring close contact between the gasket's reinforcing surface and the rock wool board surface, forming an interlocking interface to ensure stable fixation of the insulation layer. Then, a special nail is driven into the two-piece expansion end of the flanged expansion and contraction tube 2's rear fitting 203 using a pneumatic nail gun. The impact of the nail causes radial expansion at the expansion end, further tightening the flanged expansion and contraction tube 2's rear fitting 203, thus firmly connecting the anchoring gasket 1 to the building substrate. This ensures that the tensile strength of the anchoring gasket 1 is ≥1.5kN, which, compared to traditional plastic anchors, allows it to withstand greater external forces, effectively guaranteeing the safety of the insulation layer and reducing the risk of insulation layer detachment. As part of the split metal anchor, the anchoring gasket 1 is responsible for directly contacting the fixed structure and bearing the main load, thereby ensuring the effective installation and stable performance of the entire anchor. The flange 201 of the flange-type expansion and contraction pipe 2 provides a reliable installation platform for fixing the positions of fitting 1 202 and fitting 203, while ensuring installation accuracy through processing dimensions and shape.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A split metal anchor, characterized by, include: Separable installation of anchoring gasket (1) and flange expansion and contraction tube (2), the flange expansion and contraction tube (2) includes flange (201), fitting one (202) and fitting two (203), one end of fitting one (202) is fixedly connected to flange (201), the other end of fitting one (202) is connected to fitting two (203), fitting one (202) and fitting two (203) both adopt central hollow tube, the inner side wall of fitting one (202) and fitting two (203) both have a ribbed concave contraction (205), the inner side wall of fitting one (202) and fitting two (203) also have a radial glue injection hole (204).

2. The split metal anchor of claim 1, wherein, The inner sidewall of the first pipe fitting (202) is provided with a through groove (206), and the inner sidewall of the second pipe fitting (203) is provided with multiple sets of through grooves (207).

3. The split metal anchor of claim 2, wherein, The end of the second pipe fitting (203) away from the first pipe fitting (202) is provided with a tapered constriction, and the constriction cone angle ranges from thirteen degrees to seventeen degrees.

4. The split metal anchor of claim 3, wherein, The flange (201) is coated with an insulating coating made of polyurethane material with a thickness of 0.2 to 0.5 mm. The flange (201) has multiple mounting holes inside, located on the outside of the pipe fitting (202).

5. The split metal anchor of claim 4, wherein, The anchoring pad (1) has multiple sets of annular reinforcing bars on the side that contacts the wall, and a micro boss is provided at the center to fit into the wall.

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