Split type heat insulation broken bridge cast-in-place heat preservation formwork anchoring part

Abstract

The utility model relates to the technical field of cast-in-place heat preservation formwork and wall connecting pieces, in particular to a split type heat insulation broken bridge cast-in-place heat preservation formwork anchoring piece which comprises a metal anchoring disc, a counter bore is punched in the center of the metal anchoring disc, a metal screw is installed in the counter bore in a penetrating mode, and a screw column of the metal screw is provided with threads. A screw cap of the metal screw is clamped in the counter bore, a screw column of the metal screw extends in the direction perpendicular to the metal anchoring disc, a non-contact gap is reserved between the screw cap and the counter bore, a consolidation part is arranged in the gap in an injection molding mode, and the screw cap and the counter bore of the metal anchoring disc are fixedly connected into a whole through the consolidation part to form a cold and hot bridge partition. The thickness of the metal anchoring disc is smaller than the total thickness of the plastic wrapped metal anchoring disc, the thickness and usage amount of plastering and leveling mortar are reduced, the construction cost is saved, the load of an outer wall is relieved, the potential safety hazard of falling of a leveling layer is reduced, the metal anchoring disc and the mortar are both inorganic materials, and cracking of the plastering and leveling mortar layer caused by layering and bulging is avoided; and the safety is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place thermal insulation templates and wall connectors, in particular to a split-type thermal insulation broken bridge cast-in-place thermal insulation template anchor. Background Art

[0002] Energy conservation is the most basic requirement for modern buildings, and external wall insulation is the most common form of building insulation. Traditional building insulation is to lay and install the cast-in-place insulation formwork for the exterior wall after the main building project is completed, that is, the thin plastering external wall insulation system. With the development of prefabricated buildings and the improvement of building energy-saving standards, a kind of insulation composite board that is integrated with concrete pouring and completed synchronously with the main building has emerged, that is, the cast-in-place insulation formwork. Among them, the fixing method of the cast-in-place insulation formwork for the exterior wall is particularly important. If it is not fixed firmly, it is easy to form a hollow phenomenon, that is, the cast-in-place insulation formwork for the exterior wall is peeled off from the base wall. In this way, it will not only cause damage to the exterior wall surface, but also easily lead to malicious incidents of falling and injuring people. The fixed connector used to fix the cast-in-place insulation formwork for the exterior wall is an important component for fixing the cast-in-place insulation formwork. The fixed connectors currently used are mostly metal connectors. This type of connector is relatively firm, but the disadvantage is that it will form a cold and hot bridge for indoor and outdoor heat conduction, thereby reducing the insulation effect of the external insulation layer on the building.

[0003] There is also a cast-in-place thermal insulation formwork anchor, including a metal anchor plate and a metal screw. The metal screw is welded with a metal disc. The upper part of the metal screw and the outer side of the metal disc are injection-molded and covered with an integral plastic sleeve and a plastic disc. The plastic sleeve and the plastic disc serve to isolate the cold and hot bridges. However, after the installation of the cast-in-place insulation formwork anchor, the plastic disc is exposed outside the cast-in-place insulation formwork, and it is necessary to apply a plaster mortar to cover it and level the outer surface of the cast-in-place insulation formwork. Since the plastic disc is an organic material and the mortar is an inorganic material, the thermal expansion coefficients of the two are very different, and the bonding force is not strong. Over time, delamination, cracking, bulging, and falling off are prone to occur, which will cause great hidden dangers of water seepage, which may cause indoor furniture and decoration to mold, or even cause the cast-in-place insulation formwork to fall off and injure people and accelerate damage to the building. In addition, the outer circumference of the metal anchor plate is thermoplastically wrapped with a plastic shell, which greatly increases the total thickness of the anchor disc. When performing the plaster mortar leveling, the mortar coating thickness needs to be greatly increased to cover the anchor disc for leveling, which will greatly increase the amount of mortar used, waste a lot of mortar, and have a very high construction cost. In addition, the weight of the leveling layer on the external mortar surface is greatly increased, the load on the exterior wall is increased, and the risk of falling off is increased. Therefore, it is necessary to develop a split-type thermal insulation and broken bridge cast-in-place insulation formwork anchor that can avoid the hidden danger of water seepage, has high strength, firm connection, saves mortar, and can block cold and hot bridges. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a split-type heat-insulating broken-bridge cast-in-place thermal insulation formwork anchor piece with simple structure, firm connection, mortar saving, blocking of cold and hot bridges and good safety.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a split-type thermal insulation bridge cast-in-place insulation formwork anchor, including a metal anchor plate, a countersunk hole punched out of the center of the metal anchor plate, a metal screw is installed through the countersunk hole, the nail column of the metal screw is provided with a thread, the nail cap of the metal screw is clamped in the countersunk hole, the nail column of the metal screw extends in a direction perpendicular to the metal anchor plate, a consolidation part is injection-molded in the gap between the nail cap and the countersunk hole, the consolidation part fixes the nail cap and the metal anchor plate at the countersunk hole into one, a hot and cold bridge partition sleeve is injection-molded on one end of the nail column close to the metal anchor plate, and the consolidation part and the hot and cold bridge partition sleeve are injection-molded as one.

[0006] As a preferred technical solution, the top outer diameter of the nail cap is larger than the bottom inner diameter of the countersunk hole, the side wall of the countersunk hole does not contact the side wall of the nail cap and a gap is left, and the outer end surface of the nail cap is concave in the outer plane of the metal anchor plate.

[0007] As a preferred technical solution, the nail cap of the metal screw is in the shape of a truncated cone, the countersunk hole is in the shape of an inverted truncated cone, and the inclination angle of the side wall of the countersunk hole is consistent with the inclination angle of the side wall of the nail cap.

[0008] As a preferred technical solution, the hot and cold bridge partition sleeve includes a plastic cylindrical sleeve that fits tightly with the nail column, the length of the plastic cylindrical sleeve is greater than or equal to the thickness of the cast-in-place insulation formwork, and a plurality of barbs are integrally provided on the outer wall of the plastic cylindrical sleeve.

[0009] As a preferred technical solution, the upper surface of the consolidation portion is flush with the upper surface of the metal anchor plate.

[0010] As a preferred technical solution, the metal anchor plate is a circular metal anchor plate, and a plurality of through holes are formed on the metal anchor plate.

[0011] As a preferred technical solution, the through holes are arranged in an array around the center circumference of the metal anchor plate.

[0012] As a preferred technical solution, the consolidation part and the hot and cold bridge partition sleeve are made of one of PP, PPR, PVC, PE, and PA materials.

[0013] As a preferred technical solution, the metal anchor plate is a stainless steel plate.

[0014] Due to the adoption of the above technical scheme, the split-type heat-insulating broken bridge cast-in-place insulation formwork anchor comprises a metal anchor plate, a countersunk hole is punched out of the center of the metal anchor plate, a metal screw is installed through the countersunk hole, the nail column of the metal screw is provided with a thread, the nail cap of the metal screw is clamped in the countersunk hole, the nail column of the metal screw extends in a direction perpendicular to the metal anchor plate, a consolidation part is injection-molded in the gap between the nail cap and the countersunk hole, the consolidation part fixes the nail cap and the metal anchor plate at the countersunk hole into one body, a hot and cold bridge partition sleeve is injection-molded at one end of the nail column close to the metal anchor plate, and the consolidation part and the hot and cold bridge partition sleeve are injection-molded as one body; the beneficial effects of the utility model are as follows: the split-type main body structure is adopted, the welding process links of the metal screw and the metal anchor plate in the prior art are reduced, and the countersunk hole is punched on the metal anchor plate instead, which improves the processing efficiency, reduces the processing cost, and shortens the processing time. The metal screw passes through the countersunk hole and is fixed together with the metal anchor plate through the injection molding process. The metal anchor plate does not need to be wrapped in plastic to isolate the hot and cold bridges. The thickness of the metal anchor plate is much smaller than the total thickness after the plastic wraps the metal anchor plate, which greatly reduces the thickness and usage of the plastering leveling mortar, saves construction costs, reduces the load on the exterior wall, and greatly reduces the safety hazard of falling of the exterior plastering leveling layer. The metal anchor plate and mortar are both inorganic materials, and the two have good adhesion. There will be no stratification or bulging problems on the contact surface between the mortar and the metal anchor plate, which avoids stratification and bulging that cause rupture of the plastering leveling mortar layer, thereby avoiding the hidden danger of water seepage due to rupture in rainy and snowy weather, extending the service life of the insulation system and the building, enhancing safety, and the hot and cold bridge isolation sleeve can also prevent heat conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0016] Figure 1 It is a cross-sectional view of the anchor piece of the split-type heat-insulating broken bridge cast-in-place thermal insulation formwork of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0018] Figure 3 It is a structural schematic diagram of the metal screws of the split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor of the utility model;

[0019] Figure 4 It is one of the structural schematic diagrams of the metal anchor plate of the split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor of the utility model;

[0020] Figure 5 This is the second structural schematic diagram of the metal anchor plate of the split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor of the utility model.

[0021] In the figure: 1-metal anchor plate; 11-countersunk hole; 12-through hole; 2-metal screw; 21-nail cap; 22-nail column; 3-consolidation part; 4-cold and hot bridge partition sleeve; 41-plastic cylindrical sleeve; 42-barb. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0023] like Figures 1 to 5 As shown in common, the split-type thermal insulation broken bridge cast-in-place insulation formwork anchor comprises a metal anchor plate 1, a countersunk hole 11 is punched out of the center of the metal anchor plate 1, a metal screw 2 is installed through the countersunk hole 11, a nail column 22 of the metal screw 2 is provided with a thread, a nail cap 21 of the metal screw 2 is clamped in the countersunk hole 11, and the nail column 22 of the metal screw 2 extends in a direction perpendicular to the metal anchor plate 1, and a consolidation portion 3 is injection-molded in the gap between the nail cap 21 and the countersunk hole 11, and the consolidation portion 3 fixes the nail cap 21 and the metal anchor plate 1 at the countersunk hole 11 as a whole, and a hot and cold bridge partition sleeve 4 is injection-molded at one end of the nail column 22 close to the metal anchor plate 1, and the consolidation portion 3 and the hot and cold bridge partition sleeve 4 are injection-molded as a whole; the split main body structure is adopted, which reduces the welding process of the metal screw 2 and the metal anchor plate 1 in the prior art, and instead punches the countersunk hole 11 on the metal anchor plate 1, thereby improving the processing efficiency, reducing the processing cost, and shortening the processing time. The metal screw 2 passes through the countersunk hole 11 and is fixed together with the metal anchor plate 1 by the injection molding process. The metal anchor plate 1 does not need to be wrapped in plastic to isolate the hot and cold bridges. The thickness of the metal anchor plate 1 is much smaller than the total thickness after the metal anchor plate 1 is wrapped in plastic, which greatly reduces the thickness and usage of the plastering leveling mortar, saves construction costs, reduces the load on the exterior wall, and greatly reduces the safety hazard of falling of the exterior plastering leveling layer. The metal anchor plate 1 and the mortar are both inorganic materials, and the two have good adhesion. There will be no stratification or bulging problems on the contact surface between the mortar and the metal anchor 1, avoiding stratification and bulging to cause rupture of the plastering leveling mortar layer, thereby avoiding the hidden danger of water seepage due to rupture in rainy and snowy weather, extending the service life of the insulation system and the building, enhancing safety, and the hot and cold bridge isolation sleeve 4 can also prevent heat conduction.

[0024] like Figure 2As shown, the top outer diameter of the nail cap 21 is larger than the bottom inner diameter of the countersunk hole 11, and the side wall of the countersunk hole 11 does not contact the side wall of the nail cap 21, leaving a gap, and the outer end surface of the nail cap 21 is concave in the outer plane of the metal anchor plate 1. The top outer diameter of the nail cap 21 is larger than the bottom inner diameter of the countersunk hole 11, so that the nail cap 21 will not fall off and slide out of the countersunk hole 11, ensuring the tightness of the connection between the two. The top outer diameter of the nail cap 21 is 12mm, and the bottom inner diameter of the countersunk hole 11 is 10mm. The outer end surface of the nail cap 21 is concave in the outer plane of the metal anchor plate 1, so that after the nail cap 21 is injection molded in the countersunk hole 11, a certain thickness of plastic can also be injection molded on the upper surface of the nail cap 21 to fill the countersunk hole 11, ensuring that the nail cap 21 is not in direct contact with the metal anchor plate 1, and the hot and cold bridges are isolated by fully covering the nail cap 21 with plastic.

[0025] like Figure 2 As shown, the nail cap 21 of the metal screw 2 is in the shape of a truncated cone, and the countersunk hole 11 is in the shape of an inverted truncated cone. The inclination angle of the side wall of the countersunk hole 11 is consistent with the inclination angle of the side wall of the nail cap 21. The inverted truncated cone shape of the countersunk hole 11 provides an accommodating space for the installation of the nail cap 21. The nail cap 21 is also in the shape of a truncated cone and can be adapted to the shape of the countersunk hole 11. The width of the gap between the two is uniform. When the gap is injected, the wall thickness of the consolidation part 3 is kept consistent, so that the connection between the nail cap 21 and the countersunk hole 11 is more stable and firm.

[0026] like Figure 1 As shown, the cold and hot bridge partition sleeve 4 includes a plastic cylindrical sleeve 41 that fits tightly with the nail column 22. The length of the plastic cylindrical sleeve 41 is greater than or equal to the thickness of the cast-in-place insulation formwork, and a plurality of barbs 42 are integrally provided on the outer wall of the plastic cylindrical sleeve 41. The radial extension distance of the barbs 42 along the cold and hot bridge partition sleeve 4 is 4 mm, and the spacing between the two adjacent barbs 42 is equal, both 9 mm. When the cast-in-place insulation formwork is installed, the end of the metal screw 2 contacts the concrete, and the section of the metal screw 2 close to the metal plate is used to penetrate the cast-in-place insulation formwork. Therefore, the length of the plastic cylindrical sleeve 41 is greater than or equal to the thickness of the cast-in-place insulation formwork to ensure that the metal screw 2 does not directly contact the cast-in-place insulation formwork, but is separated by the plastic cylindrical sleeve 41 to block the cold and hot bridge. The provision of the barbs 42 is also to increase the contact area between the metal screw 2 and the cast-in-place insulation formwork and increase the connection strength between the two.

[0027] like Figure 1 As shown, the upper surface of the consolidation portion 3 is flush with the upper surface of the metal anchor plate 1. The consolidation portion 3 is flush with the metal anchor plate 1 to ensure that no convex or concave obstacles will be generated when the mortar is applied, making the work of applying the mortar smoother and improving the construction efficiency.

[0028] like Figure 4 and Figure 5As shown, the metal anchor plate 1 is a circular metal anchor plate, and a plurality of through holes 12 are provided on the metal anchor plate 1. The metal anchor plate 1 is preferably a circular plate, because the circular plate is convenient for processing and installation, and is also convenient for transportation. Of course, the square or polygonal metal anchor plate 1 is also within the protection scope of the present utility model. The through hole 12 can save the raw materials of the metal anchor plate 1 on the one hand, and on the other hand, it can increase the contact area between the metal anchor plate 1 and the mortar when applying the mortar, thereby increasing the firmness of the bond. The diameter of the metal anchor plate 1 is 64 mm and the thickness is 1.25 mm. The length of the nail column 22 is 170 mm and the diameter is 12 mm. The length of the hot and cold bridge partition sleeve 4 is 100 mm.

[0029] like Figure 5 As shown, the through holes 12 are circular holes, and the circular holes are arrayed around the central circumference of the metal anchor plate 1. The through holes 12 are preferably circular holes for easy processing. Holes of other shapes are also within the protection scope of the utility model, and the number of through holes 12 is not limited to the number shown in the drawings. The through holes 12 can be randomly distributed. Preferably, the circular holes are evenly arrayed around the center of the metal anchor plate 1, so as to ensure the stability of the bonding between the mortar and the metal anchor plate 1.

[0030] The consolidation part 3 and the cold and hot bridge partition sleeve 4 are made of one of PP, PPR, PVC, PE and PA materials. Injection molding is a prior art, and those skilled in the art can know the injection molding process, which will not be described in detail here. The metal anchor plate 1 is a stainless steel plate.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Split-type heat-insulating broken bridge cast-in-place insulation formwork anchor, characterized by: The invention comprises a metal anchor plate (1), a countersunk hole (11) is punched out of the center of the metal anchor plate (1), a metal screw (2) is installed through the countersunk hole (11), a nail column (22) of the metal screw (2) is provided with a thread, a nail cap (21) of the metal screw (2) is clamped in the countersunk hole (11), the nail column (22) of the metal screw (2) extends in a direction perpendicular to the metal anchor plate (1), a fixing portion (3) is injection-molded in the gap between the nail cap (21) and the countersunk hole (11), the fixing portion (3) fixes the nail cap (21) and the metal anchor plate (1) at the countersunk hole (11) to form a whole, a hot-cold bridge isolating sleeve (4) is injection-molded on one end of the nail column (22) close to the metal anchor plate (1), and the fixing portion (3) and the hot-cold bridge isolating sleeve (4) are injection-molded as a whole.

2. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 1, characterized in that: The top outer diameter of the nail cap (21) is larger than the bottom inner diameter of the countersunk hole (11), the side wall of the countersunk hole (11) does not contact the side wall of the nail cap (21) and a gap is left, and the outer end surface of the nail cap (21) is concave in the outer plane of the metal anchor plate (1).

3. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 2, characterized in that: The nail cap (21) of the metal screw (2) is in the shape of a truncated cone, the countersunk hole (11) is in the shape of an inverted truncated cone, and the inclination angle of the side wall of the countersunk hole (11) is consistent with the inclination angle of the side wall of the nail cap (21).

4. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 2, characterized in that: The hot and cold bridge isolation sleeve (4) comprises a plastic cylindrical sleeve (41) which is tightly fitted with the nail column (22); the length of the plastic cylindrical sleeve (41) is greater than or equal to the thickness of the cast-in-place thermal insulation formwork; and a plurality of barbs (42) are integrally provided on the outer wall of the plastic cylindrical sleeve (41).

5. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 1, characterized in that: The upper surface of the consolidation portion (3) is flush with the upper surface of the metal anchor plate (1).

6. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 1, characterized in that: The metal anchor plate (1) is circular and is provided with a plurality of through holes (12).

7. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to claim 6, characterized in that: The through holes (12) are arranged in an array around the central circumference of the metal anchor plate (1).

8. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to any one of claims 1 to 6, characterized in that: The consolidation portion (3) and the hot and cold bridge isolation sleeve (4) are made of one of PP, PPR, PVC, PE and PA materials.

9. The split-type heat-insulating broken bridge cast-in-place thermal insulation formwork anchor according to any one of claims 1 to 6, characterized in that: The metal anchor plate (1) is a stainless steel plate.

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