Anchoring structure for a vacuum insulation panel

Abstract

The present application relates to the construction field, specifically relates to a kind of vacuum heat insulation board anchor bolt fixing structure, including steel nail, plastic gasket, expansion pipe, heat insulation board anchor bolt fixing structure is connected by the threaded hole of steel nail through plastic gasket and the threaded channel of expansion pipe, when needing to fasten heat insulation board, steel nail is through the threaded hole on the shrink plastic gasket and the threaded channel on expansion pipe, realize the purpose of fastening heat insulation board and brick wall, expansion pipe is provided with fixing device inside, during fastening operation, the butterfly type sheet of expansion pipe both sides extends to both sides, with the fastening shrinkage effect of steel nail, plastic gasket is stuck heat insulation board, the fixing device of butterfly type expansion pipe is stuck brick wall, and heat insulation board can be firmly fixed on outer wall.

Description

Technical Field

[0001] This invention relates to the field of construction, specifically to a fixing structure for anchor bolts of vacuum insulation panels, particularly a fixing structure for lightweight masonry exterior wall insulation panels made of coal gangue hollow bricks, porous bricks, etc. Background Technology

[0002] As my country's construction industry develops rapidly, energy conservation and environmental protection requirements are increasingly approaching international standards, leading to stricter design and construction requirements for external wall insulation. Currently, the specifications and drawings used in external wall insulation construction all involve drilling holes in concrete walls using impact drills and fixing the insulation boards with plastic expansion bolts. However, in many ongoing construction projects, lightweight masonry structures are now being used for parts of the external walls, such as hollow coal gangue brick masonry and perforated brick masonry.

[0003] Chinese Patent Application Publication No. CN 107084176 A discloses an expansion screw. The sleeve includes a claw portion, which includes an expansion groove, a first claw, and a second claw. The first and second claws are arranged circumferentially around the outer periphery of the claw portion, and the expansion groove is distributed between the first and second claws. The first claw is wedge-shaped, and its size gradually decreases from the opening of the claw portion towards the nut. The second claw is also wedge-shaped, and its size gradually increases from the opening of the claw portion towards the nut. When the nut rotates, forcing the sleeve forward, the first and second claws expand under force, increasing the friction with the hole wall, enhancing the fastening ability, effectively preventing the expansion screw from falling off, and ensuring that the expansion screw adheres to the hole in the wall. In addition, the first and second claws also increase the friction with the screw rod, enhancing the biting force with the screw rod and preventing the screw rod and nut from rotating together.

[0004] In summary, traditional expansion bolts use an all-metal structure, have a small expansion range, and are only suitable for solid walls, such as cement walls. They are not practical for lightweight masonry materials such as gypsum board and hollow bricks. Summary of the Invention

[0005] The purpose of this invention is to solve the technical shortcomings of the above-mentioned lightweight masonry (such as hollow coal gangue bricks, porous bricks, etc.) where it is difficult to reinforce the external wall insulation board, and to provide an anchor bolt construction method for the external wall insulation board of lightweight masonry (such as hollow coal gangue brick masonry, porous brick masonry, etc.). The anchor bolt construction in this invention can be applied to various external wall insulation boards such as rock wool board, XPS board, EPS board, and vacuum insulation board.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vacuum insulation panel anchor bolt fixing structure, comprising a steel nail, a plastic washer, and an expansion tube. The insulation panel anchor bolt fixing structure connects the steel nail through the threaded hole of the plastic washer to the threaded channel of the expansion tube. When it is necessary to tighten the insulation panel, the steel nail tightens the threaded hole on the plastic washer and the threaded channel on the expansion tube to achieve the purpose of tightening the insulation panel to the brick wall. Fixing devices are provided on both sides of the expansion tube. During the tightening operation, the butterfly-shaped pieces on both sides of the expansion tube extend to both sides. With the tightening contraction of the steel nail, the plastic washer clamps the insulation panel, and the fixing device of the butterfly-shaped expansion tube clamps the brick wall, thus firmly fixing the insulation panel to the exterior wall.

[0007] The plastic gasket is a circular gasket, mainly made of nylon, which improves the stability of the gasket and makes it fit better with materials such as insulation boards. The gasket has a threaded circular hole in the middle, which can be used with steel nails to achieve a fixing and locking effect, providing a force point for the tightening operation. There are 8 reinforcing ribs arranged in a circular array on the inner diameter of the gasket, which are used to increase the strength and rigidity of the plastic gasket without increasing the wall thickness. Through holes are provided between the reinforcing ribs of the gasket to disperse the internal stress of the gasket.

[0008] The expansion tube is manufactured as a single piece. The upper part of the expansion tube has a first tube body that is a quadrilateral prism, and the lower part has a second tube body that is also a quadrilateral prism. A plastic sheet is located in the middle of the expansion tube. Two or more triangular pyramidal planar prism limiting plates are located on the upper part of the inner side of the plastic sheet. A movable fixing device is located on the upper side of the second tube body that mates with the plastic sheet. This structural design allows for overall contraction and expansion. The second tube body and the first tube body are positioned opposite each other on the same axis and are connected by a compressible plastic sheet. This allows the expansion tube to contract to its minimum state within a limited distance under the influence of external force. A fixing device is located above the second tube body, and this device changes position as the plastic sheet contracts. The upper middle part of the inner side of the material sheet is provided with two or more limiting plates that are triangular pyramidal planar cylinders. The first tube and the second tube are provided with threaded channels inside, which are used to cooperate with steel nails to achieve a fastening effect. When the steel nail rotates, one end of the steel nail cooperates with the plastic washer to achieve force fastening, and the other end of the steel nail cooperates with the threaded channels inside the first tube and the second tube. At this time, the second tube moves towards the first tube due to force, and the plastic washer begins to fold inward under the force. At this time, the fixing device moves and extends to both sides to increase the force point until the fixing device and the limiting plate exert mechanical action and stop moving. The fastening process is completed, thereby realizing the fastening operation of the insulation board and lightweight masonry, achieving the purpose of fixing the insulation board and lightweight masonry (such as: coal gangue hollow bricks, porous bricks, etc.).

[0009] The steel nail is a galvanized threaded rod, mainly made of low-carbon steel, which improves the strength and tensile strength of the steel nail, reduces the problem of corrosion caused by environmental factors, and makes it less prone to breakage. The end of the steel nail threaded rod has a star-shaped hole, which is convenient for screwdrivers or electric screwdrivers to tighten.

[0010] The expansion tube is cylindrical and has a vertical through hole in the middle. Two parallel, inwardly cut planes are located in the lower middle part of the expansion tube, with a vertical limiting groove in the middle of each plane. The expansion tube has a fastening device that fits with the through hole. The outer surface of the fastening device has a limiting post that matches the limiting groove. The fastening device has a fixing device that is rotatably connected to the limiting post. The fixing device has a groove that matches the planes, and its outer surface is arc-shaped. The two inwardly cut planes of the expansion tube fit with the groove of the fixing device, allowing the expansion tube to rotate completely into the groove. The fastening device can move within the through hole and the range of the limiting groove. The limiting hole of the fixing device fits with the limiting post, allowing the fixing device to rotate 0-300 degrees. One end of the fixing device is solid, and the limiting hole is located in the upper middle position. Due to gravity, the limiting plate can remain vertical when passing through the fixing hole in the wall. When the expansion tube is fastened, the fixing device can be fixed inside the hole.

[0011] Compared with existing technologies, this invention fixes the external wall insulation board by reinforcing it with steel nails and expansion tubes, using customized plastic gaskets to clamp the expansion tubes and the expansion tubes to the brick wall. This structure breaks through the traditional reinforcement method, is not only simple in principle, but also convenient to construct, and has good concealment without compromising structural safety and aesthetics. It is reliable, durable, economical, and practical, and all materials and tools involved in construction are common materials. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments;

[0013] Figure 1 This is a three-dimensional structural diagram of a vacuum insulation panel anchor bolt fixing structure according to the present invention;

[0014] Figure 2 This is a schematic diagram of a plastic gasket structure for fixing anchor bolts to a vacuum insulation panel according to the present invention.

[0015] Figure 3 This is a schematic diagram of an expansion tube structure for fixing anchor bolts to a vacuum insulation panel according to the present invention.

[0016] Figure 4 This is a schematic diagram of an expansion tube structure for fixing anchor bolts to a vacuum insulation panel according to the present invention.

[0017] Figure 5 This is a schematic diagram of the fixing device for fixing anchor bolts on a vacuum insulation panel according to the present invention.

[0018] Figure 6 This is a schematic diagram of an expansion tube structure for fixing anchor bolts to a vacuum insulation panel according to the present invention.

[0019] Figure 7 This is a schematic diagram of the fastening device for fixing anchor bolts to a vacuum insulation panel according to the present invention.

[0020] Figure 8 This is a schematic diagram of the fixing device for fixing anchor bolts on a vacuum insulation panel according to the present invention.

[0021] Among them, 1-steel nail, 2-plastic gasket, 201-first threaded hole, 202-through hole, 203-reinforcing rib, 3-expansion tube, 301-first tube body, 301a-first threaded channel, 302-second tube body, 302a-second threaded channel, 303-plastic sheet, 304-fixing device, 305-limiting plate, 306-limiting groove, 307-plane, 308-fixing piece, 401-groove, 402-limiting hole, 5-fastening device, 501-limiting post. Detailed Implementation

[0022] The technical solutions will now be clearly and completely described in conjunction with embodiments of the present invention. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 3 This invention describes a method for fixing vacuum insulation panels with anchor bolts. The anchoring device for the vacuum insulation panel at a brick wall includes, from the inside out, the base wall, the exterior waterproof mortar plaster, the special adhesive mortar for vacuum insulation panels, and the vacuum insulation panel. The method employs... Figure 1 The anchoring device shown is used to reinforce the vacuum insulation board at the hollow brick section of the exterior wall.

[0024] Combination process: such as Figure 1 The anchor bolt fixing structure consists of a steel nail 1, a plastic washer 2, and an expansion tube 3. The steel nail 1 is connected through the first threaded hole 201 of the plastic washer 2, and the expansion tube 3 is connected through the threaded channel of the first tube body 301 and the second tube body 302 to complete the assembly process of the anchor bolt device.

[0025] Installation process: After drilling a suitable size fixing hole on the surface of the exterior wall, pinch the plastic piece (303) in the middle of the expansion tube 3 to make it shrink to the minimum state and fit the steel nail 1 better. Then place the steel nail 1 in the fixing hole until the steel nail 1 can no longer move inward. At this time, the installation process of the anchor bolt device is completed.

[0026] Tightening process: After completing the initial assembly and installation of the anchor bolt device, the anchor bolt fixing device is still insufficient for fixing. At this time, use a manual or electric screwdriver to tighten the steel nail 1 clockwise. The plastic washer 2 provides the first force point and is attached to the insulation board. The expansion tube 3 provides the second force point and is attached to the internal space of the hollow brick. Continue to tighten the steel nail 1 clockwise. At this time, the second tube 302 moves parallel to the first tube 301 due to the force. At the same time, the plastic sheet 303 folds inward due to the force of the movement of the second tube 302. The fixing device 304 moves and extends to both sides, increasing the force point, until the fixing device 304 and the limiting plate 305 exert mechanical force and stop moving. The tightening process is completed, thereby realizing the fastening operation between the insulation board and the lightweight masonry, and achieving the purpose of fixing the insulation board and the lightweight masonry.

[0027] In this embodiment, galvanized steel nail 1 is a galvanized steel nail with a diameter of 3.5 mm and a length of 50-80 mm, which can be purchased according to the thickness of the external wall insulation board. Figure 1 This is a schematic diagram of the end of a steel nail. The end of the screw has a star-shaped hole for easy operation with a manual or electric screwdriver. Figure 2 The plastic gasket 2 is shown. The plastic gasket 2 is a circular gasket with a first threaded hole 201 in the middle. There are 8 reinforcing ribs 203 on the inner side of the gasket to increase the strength and rigidity of the plastic gasket 2 without increasing the wall thickness. Through holes 202 are provided between the reinforcing ribs of the gasket to disperse the internal stress of the gasket.

[0028] Example 2:

[0029] The difference from Example 1 is that, as Figures 4 to 8 The expansion tube 3 has a vertical through hole in the middle. The lower middle part of the expansion tube 3 has two parallel inwardly cut planes 307. The middle of the planes 307 has a vertical limiting groove 306. The expansion tube 3 has a fastening device 5 that fits with the through hole. The outer surface of the fastening device 5 has a limiting post 501 that matches the limiting groove 306. The fastening device 5 has a fixing device 304 that is rotatably connected to the limiting post 501. The fixing device 304 has a groove 401 that matches the plane 307.

[0030] Working Principle: First, wall base treatment. The wall base should be clean, firm, and flat, free of oil stains, release agents, and other substances that hinder adhesion. Protrusions, hollow areas, and loose parts should be removed. Any areas where the wall surface flatness exceeds the allowable deviation should be chiseled or repaired. Waterproofing and plastering of the base wall should be completed according to the drawings. Second, insulation board installation. 24 hours after the vacuum insulation board is installed, begin installation of the fasteners at lightweight masonry locations (such as hollow coal gangue brick masonry, perforated brick masonry, etc.). Drill holes at the fixing positions using an electric hammer; the hole diameter depends on the diameter of the fastener. Pull the fastening device 5 to the lower middle part so that the fixing device 304 can rotate. Then rotate the expansion tube 3 into the fixing device 304 until it is parallel. The fixing device 304 is inserted into the hole in the wall. The entire fixing device 304 is inserted into the hole. The upper end of the expansion tube 3 has a fixing plate 308, which needs to be tapped with a tool to make the entire expansion tube 3 also insert into the hole in the wall. One end of the fixing device 304 is a solid structure, and the inside of the hole is hollow, so the fixing device is in a vertical state. The steel nail 1 passes through the plastic gasket 2 and the expansion tube 3 and is threaded to the fastening device 5. Twisting the steel nail 1 clockwise makes the fastening device 5 and the fixing device 304 slowly tighten, so that the two sides of the fixing device 304 are stuck into the hollow bricks in the wall and squeezed with the outer plastic gasket 2, which firmly fixes the vacuum insulation board to the exterior wall, forming a strong mechanical interlocking force, thereby achieving the purpose of mechanically fixing the exterior wall insulation board.

Claims

1. A vacuum insulation panel anchor fixing structure, characterized by, It includes steel nail (1), plastic gasket (2), expansion pipe (3), the steel nail (1) passes through plastic gasket (2), the expansion pipe (3) is whole and is inserted wall surface fixed hole, the steel nail (1) screw type movable connection expansion pipe (3), the lower part of expansion pipe (3) is equipped with movable fixing device (304); The upper end of expansion pipe 3 has a fixing sheet (308); The expansion pipe (3) is cylindrical, the middle of the expansion pipe (3) is provided with a vertical through hole, the lower part of the expansion pipe (3) is provided with two parallel inwardly cut planes (307), and the middle of the plane (307) is provided with a vertical limiting groove (306); The expansion pipe (3) is provided with a fastening device (5) matched with the through hole gap, and the outer surface of the fastening device (5) is provided with a limiting column (501) matched with the limiting groove (306); The fastening device (5) is provided with a fixing device (304) rotatably connected with the limiting column (501), and the fixing device (304) is provided with a groove (401) matched with the plane (307); The steel nail (1) is threadedly connected with the fastening device (5) through the plastic gasket (2) and the expansion pipe (3).

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