Anchors and demountable insulation board anchoring structures
By using a shuttlecock-shaped anchor structure to achieve simultaneous casting of the insulation board and the frame, the contradiction between insulation performance, fire resistance and structural safety in the existing technology is solved, especially the anchoring problem of inorganic insulation boards, achieving A1 fire resistance standard and simple construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-03-31
AI Technical Summary
Existing building insulation methods struggle to balance insulation performance, fire resistance, construction costs, and structural safety. In particular, the anchoring of inorganic insulation boards is difficult to meet the A1 fire resistance standard and the construction is complex.
The structure adopts a shuttlecock-shaped anchor, including a shuttlecock support plate and a shuttlecock feather rod, which are fixed by connecting bolts and connecting nuts to achieve synchronous casting of the insulation board and the frame. The anchor is designed in the shape of a shuttlecock to adapt to different bending angles and lengths, ensuring anchoring capacity and fire resistance.
This design achieves integrated anchoring of the insulation board and frame, solves the problem of insulation layer detachment, improves fire resistance and structural safety, expands the range of insulation materials to choose from, and reduces construction complexity and cost.
Smart Images
Figure CN224063696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction technology of non-removable insulation board for building exterior walls, specifically to an anchor nail and an anchoring structure for non-removable insulation board. Background Technology
[0002] Currently, building insulation commonly uses external wall bonding of insulation materials such as EPS / XPS, rock wool, and ceramic wool, combined with anchor reinforcement. While this method offers excellent insulation performance and effectiveness, it also presents serious and insurmountable problems:
[0003] Short lifespan and poor safety. More than ten years after construction, a large number of cracks, water seepage, bulging, peeling and falling off often occur, posing a safety hazard of falling objects from heights. The insulation part cannot achieve the same lifespan as the main building structure.
[0004] Poor fire resistance leads to frequent fires. Organic insulation materials such as EPS / XPS insulation boards have poor flame retardant properties, and in practice, they have caused numerous fires, resulting in significant losses.
[0005] The construction is complex, the individual construction period is long, and the hidden costs are high.
[0006] In the past two years, some new insulation materials, such as prefabricated, non-removable multi-layer composite panels or integrated insulation and structural decoration panels, have been used as outer formwork for casting, forming an integral part with the main cast-in-place structure. However, composite panels are made of various heterogeneous materials bonded together, and often contain a large amount of organic materials. The anchoring method of the anchors in the insulation panel is still a simple mechanical through-load bearing, which still poses the risk of separation of the adhesive layer under long-term rain and snow exposure and sunlight. Its safety and fire resistance still need to be tested in long-term practice.
[0007] Inorganic insulation boards have excellent fire resistance, such as autoclaved aerated concrete (ALC) boards, which have a fire resistance rating of A1. However, they are heavy and difficult to anchor securely using existing construction methods.
[0008] In summary, the main problems and dilemmas of existing building insulation methods are that it is difficult to achieve a good balance between insulation performance, fire prevention, construction costs, life cycle, and structural safety. In particular, the contradiction between insulation performance, fire prevention, and safety is difficult to resolve. Utility Model Content
[0009] In view of this, the purpose of this utility model is to provide an anchoring structure for anchor nails and non-removable insulation boards, so as to realize the simultaneous implementation of insulation board anchoring and frame pouring, and truly achieve the integration of insulation and frame.
[0010] While absorbing the advantages of existing new thermal insulation materials and innovative construction methods, we aim to achieve a higher level of rebalancing between thermal insulation performance, fire resistance, construction costs, lifespan, and the firmness of the insulation layer. In particular, we need to solve the problem of anchoring inorganic thermal insulation boards that are heavy but meet the A1 fire resistance standard.
[0011] To achieve the above objectives, the present invention provides the following technical solution:
[0012] In a first aspect, an anchor nail is characterized in that it includes a shuttlecock support plate, a shuttlecock feather rod, a connecting bolt, a connecting nut, and a casting vent hole on the shuttlecock support plate; the connecting bolt is fixed to the shuttlecock support plate, and the shuttlecock feather rod is fixed to the connecting nut; the shuttlecock support plate and the shuttlecock feather rod are connected by tightening the connecting bolt and the connecting nut.
[0013] The anchor is shaped like a shuttlecock.
[0014] The connecting bolt is vertically fixed to the shuttlecock support piece, and its center line passes through the center of the shuttlecock support piece.
[0015] The shuttlecock shaft (2) is formed by bending the first bend (201), the first bend (203), the second bend (204), and the second bend (202) in sequence.
[0016] Preferably, the center lines of each bent portion of the shuttlecock (2) are in the same plane.
[0017] Optionally, the connecting bolt (3) and the shuttlecock support piece (1), and the shuttlecock feather rod (2) and the connecting nut (4) are fixed by welding.
[0018] The first bend (203) of the shuttlecock rod (2) is fixed to the side of the connecting nut, and the second bend (204) forms an outward angle with the center line of the connecting bolt. Preferably, the center line of the first bend (201) intersects the center line of the connecting bolt.
[0019] In a second aspect, a non-removable insulation board anchoring structure is provided, including the anchor nails as described in the first aspect, characterized in that: the non-removable insulation board, which serves as a casting template, is provided with anchoring holes; after the key support plate and key bar of the anchor nail are connected and tightened in the anchoring holes, the inner side of the anchoring holes is open to the frame casting space, while the outer side is closed but can vent air, thus forming an integrated casting space with the non-removable insulation board and ordinary template.
[0020] One end of the welding connection nut of the shuttlecock feather rod is inserted through the inside of the anchor hole and connected to the connecting bolt on the shuttlecock support plate.
[0021] The diameter of the shuttlecock support piece is larger than the diameter of the anchor hole. The shuttlecock feather rod is in the shape of a shuttlecock feather. During the tightening process, the shuttlecock support piece is tightly attached to the outer side of the insulation board, or tightly attached to a shallow hole on the surface of the insulation board that is compatible with the diameter of the shuttlecock support piece. The shuttlecock feather rod is fixed by the first bend (203) pressing against the inner edge of the anchor hole or the second bend (202) pressing against the inner side of the insulation board.
[0022] The distance between the center of the vent hole and the center of the support piece is equal to the radius of the pre-set anchor hole of the insulation board minus the radius of the vent hole. The outer edge of the vent hole is internally tangent to the outer edge of the anchor hole, and the center of the vent hole is directly above the center of the anchor hole. During synchronous pouring, the air in the anchor hole of the insulation board can be completely and thoroughly discharged through the vent hole. Whether the anchor hole is filled with concrete mortar can be determined by observing whether grout begins to overflow from the vent hole. If no grout overflows, fine sand concrete can be used for secondary reverse grouting through the vent hole.
[0023] The size of the outward bending angle is adjusted when the shuttlecock is bent, the position of the shuttlecock body against the inner wall edge of the preset anchor hole in the insulation board is adjusted, and the length ratio of the shuttlecock in the anchor hole and the cast-in-place concrete is allocated.
[0024] By adjusting the lengths of the first bend (201), the second bend (202), the first bend (203), and the second bend (204), the bending angle within the range of 0-180°, and the welding position of the first bend (203), the shape, fixing position, and fixing method of the shuttlecock rod (2) can be adjusted.
[0025] The anchoring volume and anchoring capacity of the anchor are adjusted by adjusting the manufacturing dimensions of the shuttlecock support piece and the shuttlecock feather rod.
[0026] The non-removable insulation board anchoring structure is designed so that the non-removable insulation board is part of the casting template. The anchors are used to anchor the insulation board through cast-in-place concrete, and the process is carried out simultaneously with the frame casting. The structure is integrated and anchored through the frame and the insulation board.
[0027] The beneficial effects of this utility model are that, through the above technical solution, the anchor nail of this utility model can realize the simultaneous on-site casting of the insulation board and the building frame. The insulation board and the frame extend into each other, are integrally formed, and are firmly anchored together, which completely solves the problem of insulation layer falling off. It is especially suitable for the construction of insulation boards with large body weight, expands the range of insulation materials to be selected, and better balances the building insulation, fire prevention and safety at the same time. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0030] Figure 1 is a schematic diagram of the anchor structure of the preferred embodiment 1;
[0031] Figure 2 is a schematic diagram of the anchor structure of the preferred embodiment 2;
[0032] Figure 3 is a schematic diagram of the anchor structure of the preferred embodiment 3;
[0033] Figure 4 is a schematic diagram of the shuttlecock support plate and shuttlecock feather rod before connection in the preferred embodiment 1;
[0034] Figure 5 is a schematic diagram of the shuttlecock support plate and shuttlecock feather rod before connection in the preferred embodiment 2;
[0035] Figure 6 is a schematic diagram of the inner side of the component after it is inserted into the anchoring holes of the insulation board from both sides in the preferred embodiment 1.
[0036] The reference numerals used in the above figures are explained as follows:
[0037] 1. Shuttlecock support plate;
[0038] 2. Shuttlecock feather shaft, 201. Bend 1, 202. Bend 2, 203. Bend 1, 204. Bend 2;
[0039] 3. Connecting bolts;
[0040] 4. Connecting nuts;
[0041] 5. Pour out the vent holes;
[0042] 6. Outward fold angle;
[0043] 7. Anchor holes. Detailed Implementation
[0044] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.
[0045] The following example uses 100mm thick B04 model autoclaved aerated concrete panels as a non-removable insulation formwork, implementing insulation panel anchoring and simultaneous frame casting.
[0046] Preferred embodiment 1: As shown in Figures 1 and 4, an anchor nail that achieves simultaneous anchoring and casting includes a shuttlecock support plate (1), a shuttlecock feather rod (2), a connecting bolt (3), a connecting nut (4), and a casting vent hole (5) on the shuttlecock support plate (1); the connecting bolt (3) is fixed on the shuttlecock support plate (1), and the shuttlecock feather rod (2) is fixed on the connecting nut (4); the shuttlecock support plate (1) and the shuttlecock feather rod (2) are connected by tightening the connecting bolt (3) and the connecting nut (4).
[0047] In the preferred embodiment 2, as shown in Figure 2, the anchors with both the bend and the bend angle are 90°. The first bend (203) is relatively long and the welding position is in the middle section of the shuttlecock rod (2). The shuttlecock support piece (1) is fixed tightly against the outer side of the ALC plate. The second bend (202) on the shuttlecock rod (2) touches the inner edge of the anchor hole and is fixed (as shown in Figure 6). The first bend (201) and the first bend (203) on the shuttlecock rod (2) are inserted into the anchor hole. The second bend (202), the first bend (203), the second bend (204) and the connecting bolt (3) extend out and can be tied together with the frame reinforcement. This preferred embodiment has strong anchoring ability.
[0048] In the preferred embodiment 3, as shown in Figure 3, the anchors with both the bend and the bend angle are 90°. The first bend (203) is shorter, and the shuttlecock support piece (1) is fixed tightly against the outer side of the ALC plate. The second bend (202) on the shuttlecock rod touches the inner side of the anchor hole and is fixed (as shown in Figure 6). The first bend (201) on the shuttlecock rod is shallowly inserted into the anchor hole. The second bend (202), the first bend (203), the second bend (204), and the connecting bolts extend out and can be tied together with the frame reinforcement. This preferred embodiment has a lower anchor manufacturing cost.
[0049] The preferred embodiments described above differ only in the shape of the anchors used in the anchor manufacturing process; the subsequent implementation steps are identical.
[0050] During implementation, the ALC board serves as the outer, non-removable template, completing the initial template installation. Before the large-scale installation of square timber and tie rods, a 6cm diameter through anchor hole (7) is drilled at the intersection of the ALC board and the horizontal and vertical reinforcing bars, with the center at the center. The welded shuttlecock support piece (1) is connected to the welded shuttlecock feather rod (2) by connecting bolts (3) and connecting nuts (4). During tightening, the shuttlecock feather rod (2) is fixed by pressing against the inner edge of the anchor hole (7). After installation, the outer edge of the venting hole is tangent to the outer edge of the anchor hole, and the center of the venting hole is located directly above the center of the anchor hole. To ensure that during the synchronous pouring process, the air in the anchor holes of the insulation board can be completely and thoroughly discharged through the pouring vent hole, and to determine whether the anchor holes are filled with concrete mortar by observing whether the pouring vent hole starts to overflow, the anchor holes (7) that have not overflowed can be grouted a second time through the pouring vent hole with fine sand concrete.
[0051] Install square timber, steel pipes and tie wires to complete the formwork. When installing square timber, steel pipes and tie wires, avoid covering the venting holes (5) during pouring. At this time, the anchoring holes and fixed anchors are open to the frame pouring space on the inside and closed on the outside but can be vented. The anchoring holes (7), fixed anchors, insulation boards and ordinary formwork enclose an integrated pouring space.
[0052] Pouring concrete. When pouring reinforced concrete, observe whether the vent holes (5) overflow with grout. If grout begins to overflow, use small wooden wedges to seal them. After the formwork is removed, carefully check each vent hole (5), remove the sealing wooden wedges, and if there is no overflow, use fine sand concrete to grout through the vent holes (5) for secondary grouting to avoid incomplete grouting of the anchor holes.
[0053] To ensure that the insulation construction meets national insulation and energy-saving standards and customer requirements, this embodiment should be combined with the selection of secondary structure masonry methods.
[0054] For secondary structure masonry, 300mm thick self-insulating aerated concrete blocks or 300mm thick self-insulating ALC panels should be selected. During masonry, the open portion should be flush with the already installed 100mm thick ALC panels.
[0055] The embodiments of this utility model disclosed above are merely illustrative of the present utility model. The embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An anchor bolt, characterized in that, It is shaped like a shuttlecock and includes a shuttlecock support plate (1), a shuttlecock feather rod (2), a connecting bolt (3), a connecting nut (4), and a casting vent hole (5) on the shuttlecock support plate (1); the connecting bolt (3) is fixed on the shuttlecock support plate (1), and the shuttlecock feather rod (2) is circumferentially fixed on the connecting nut (4); the shuttlecock support plate (1) and the shuttlecock feather rod (2) are connected by tightening the connecting bolt (3) and the connecting nut (4).
2. The anchor as described in claim 1, characterized in that... The connecting bolt (3) is vertically fixed to the shuttlecock support piece (1).
3. The anchor as described in claim 1, characterized in that... The shuttlecock shaft (2) is formed by bending the first bend (201), the first bend (203), the second bend (204), and the second bend (202) in sequence.
4. The anchor as described in claim 1, characterized in that... The connecting bolt (3) and the shuttlecock support piece (1), and the shuttlecock feather rod (2) and the connecting nut (4) are fixed by welding.
5. The anchor as described in claim 3, characterized in that... The first bend (203) of the shuttlecock rod (2) is fixed on the side of the connecting nut (4), and the second bend (204) forms an outward bend angle (6) with the center line of the connecting bolt (3).
6. A non-removable insulation board anchoring structure, comprising the anchor nails as described in claim 3, characterized in that... The non-removable insulation board used as a casting template is provided with anchor holes (7). After the shuttlecock support piece (1) and shuttlecock feather rod (2) of the anchor nail are connected and tightened in the anchor holes (7), the inner side of the anchor holes (7) is open to the frame casting space, and the outer side is closed but can be vented. It forms an integrated casting space with the non-removable insulation board and ordinary template.
7. The non-removable insulation board anchoring structure as described in claim 6, characterized in that... The end of the welding connection nut (4) of the shuttlecock feather rod (2) is inserted through the inside of the anchor hole (7) and connected to the connecting bolt (3) on the shuttlecock support plate (1).
8. The non-removable insulation board anchoring structure as described in claim 6, characterized in that... The diameter of the shuttlecock support piece (1) is larger than the diameter of the anchor hole (7), and the shuttlecock feather rod (2) is in the shape of a shuttlecock feather. During the tightening process, the shuttlecock support piece (1) is fixed close to the outside of the non-removable insulation board or close to the shallow hole on the surface of the non-removable insulation board that is compatible with the diameter of the shuttlecock support piece (1). The shuttlecock feather rod (2) is fixed by squeezing the inner edge of the anchor hole (7) through the first bend (203) or squeezing the inner side of the non-removable insulation board through the second bend (202).
9. The non-removable insulation board anchoring structure as described in claim 6, characterized in that... The outer edge of the vent hole (5) is tangent to the outer edge of the anchor hole (7), and the center of the vent hole (5) is located directly above the center of the anchor hole (7).
10. The non-removable insulation board anchoring structure as described in claim 6, characterized in that: Includes the anchor nail as described in claim 5; by adjusting the bending of the shuttlecock rod (2) to change the size of the outward bending angle (6), thereby adjusting the squeezing point of the shuttlecock rod (2) on the inner wall edge of the pre-set anchor hole (7) of the non-removable insulation board, and allocating the length ratio of the shuttlecock rod (2) in the anchor hole (7) and the cast-in-place concrete.
11. The non-removable insulation board anchoring structure as described in claim 6, characterized in that: The shape, fixed position and fixed method of the shuttlecock rod (2) can be adjusted by adjusting the length of the first bend (201), the second bend (202), the first bend (203) and the second bend (204), the bending angle within the range of 0-180°, and the welding position of the first bend (203).
12. The non-removable insulation board anchoring structure as described in claim 6, characterized in that... The insulation board is incorporated into the casting template to prevent disassembly. The anchors are used to anchor the insulation board through cast-in-place pouring, which is carried out simultaneously with the frame casting. The structure is integrated and anchored through the frame and the insulation board.