Anchoring part for heat insulation broken bridge cast-in-place heat preservation formwork

Abstract

The utility model relates to the technical field of heat insulation board and wall connecting pieces, in particular to a heat insulation broken bridge cast-in-place heat insulation formwork anchoring piece which comprises a metal disc, a metal screw perpendicular to the metal disc is welded to the center of the metal disc, and a columnar cold and hot bridge partition portion is arranged on the side, provided with the metal screw, of the metal disc in an injection molding mode. The metal screw is wrapped at the axis of the cold and hot bridge partition part, the central axis of the metal screw coincides with the central axis of the cold and hot bridge partition part, and the length of the cold and hot bridge partition part is larger than that of the metal screw. A plastic semi-wrapping structure is adopted, the thickness of the metal disc is smaller than the total thickness of the metal disc wrapped by plastic, the thickness and the use amount of plastering and leveling mortar are greatly reduced, the construction cost is saved, the load of an outer wall is relieved, and the potential safety hazard of falling of a leveling layer is greatly reduced; the problems of layering, bulging and the like of the contact surface of mortar and the metal disc are avoided, the safety is enhanced, and the cold and hot bridge partition part plays a role in preventing heat conduction.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting members between thermal insulation boards and walls, in particular to a heat-insulating broken bridge cast-in-place thermal insulation formwork anchor. Background Technique

[0002] Building energy conservation is the most basic requirement for current buildings, and external wall thermal insulation is the most common form of building thermal insulation. In traditional external wall thermal insulation, after the main building project is completed, the laying and installation of external wall thermal insulation boards are carried out. With the development of prefabricated buildings and the improvement of thermal insulation requirements, there has emerged a thermal insulation composite board that is cast in place synchronously with the main building, that is, a cast-in-place thermal insulation formwork. Among them, the fixing method of the cast-in-place thermal insulation formwork is particularly important. If it is not fixed firmly, it is easy to form a hollowing phenomenon, that is, the external wall cast-in-place thermal insulation formwork is peeled off from the base wall. In this way, it will not only cause damage to the external wall surface, but also easily lead to malignant events of falling and hurting people. The fixing connecting member used to fix the external wall cast-in-place thermal insulation formwork is an important component for the fixation of the cast-in-place thermal insulation formwork. At present, the fixing connecting members used are mostly metal connecting members. This kind of connecting member is relatively firmly connected, but the disadvantage is that it will form a heat bridge for heat conduction between indoor and outdoor, thereby reducing the thermal insulation effect of the external thermal insulation layer on the building.

[0003] There is also a cast-in-place thermal insulation formwork anchor. A plastic shell is thermally molded throughout the outer circumference of the anchoring metal disc and the screw. In this way, the cold and heat bridges can be effectively blocked. There is also a cast-in-place thermal insulation formwork anchor. A plastic shell is thermally molded throughout the outer circumference of the anchoring metal disc, and a plastic shell is thermally molded on the outer circumference of the outer end of the screw close to the anchoring metal disc, and the inner end of the screw far from the anchoring metal disc is exposed, so as to reduce the cold and heat bridges. However, in both of the above two structures, the entire anchoring metal disc is wrapped by plastic. Since the plastic disc is a plastic structure, its strength is low, it is easy to age and break, and the plastic disc is exposed outside the thermal insulation board, and it is necessary to coat and plaster mortar to cover it and level the outer surface of the cast-in-place thermal insulation formwork. Since the plastic disc is an organic material and the mortar is an inorganic material, their thermal expansion coefficients are very different, and the bonding force is not strong. Over time, problems such as delamination, cracking, bulging, and peeling are likely to occur, which will cause great water seepage hazards. In the light case, it will cause indoor furniture and decoration to mildew. In the severe case, it will cause the cast-in-place thermal insulation formwork to fall and hurt people and accelerate the damage of the building. In addition, the outer circumference of the anchoring metal disc is thermally molded and wrapped with a plastic shell, which greatly increases the total thickness of the anchoring disc. When plastering mortar for leveling, it is necessary to greatly increase the thickness of the mortar coating to cover the anchoring disc for leveling. In this way, it will greatly increase the amount of mortar used, waste a large amount of mortar, the construction cost is very high, and it will greatly increase the weight of the outer plastered mortar leveling layer, increase the external wall load, and increase the falling risk. Therefore, it is very necessary to develop a cast-in-place thermal insulation formwork anchor that can avoid water seepage hazards, has high strength, is firmly connected, saves mortar, and can block cold and heat bridges. Utility Model Content

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

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an insulating bridge cast-in-place insulation formwork anchor, comprising a metal plate, a metal screw perpendicular to the center of the metal plate is welded thereto, a columnar hot and cold bridge partition part is injection-molded on one side of the metal plate on which the metal screw is installed, the hot and cold bridge partition part covers the metal screw at its axis, the central axis of the metal screw coincides with the central axis of the hot and cold bridge partition part, and the length of the hot and cold bridge partition part is greater than the length of the metal screw.

[0006] As a preferred technical solution, the metal disk is a circular metal disk, and a plurality of through holes are formed on the metal disk.

[0007] As a preferred technical solution, the through holes are arranged in an array on the central circumference of the metal disk, and anti-slip threads are provided on the outer circumference of the metal screw.

[0008] As a preferred technical solution, the hot and cold bridge isolating portion includes a covering portion for covering the metal screw and a fixing portion for connecting to concrete, and the covering portion and the fixing portion are integrally injection molded.

[0009] As a preferred technical solution, the outer peripheral surface of the hot-cold bridge partition portion is integrally injection-molded with barbs, and the distances between the adjacent barbs along the axial direction of the hot-cold bridge partition portion are equal.

[0010] As a preferred technical solution, the outer diameter of the covering portion is greater than the outer diameter of the fixing portion, and a transition arc surface is provided at the junction of the covering portion and the fixing portion.

[0011] As a preferred technical solution, the length of the barb on the covering portion is smaller than the length of the barb on the fixing portion, and the barb on the covering portion and the barb on the fixing portion have the same radial extension distance along the hot and cold bridge isolating portion.

[0012] As a preferred technical solution, the hot and cold bridge partition portion includes a main body portion covering the outside of the metal screw and a tip portion extending toward the end, the outer diameter of the main body portion remains consistent, and the outer peripheral surface of the main body portion is integrally injection molded with barbs, and the spacing between the adjacent barbs along the axial direction of the hot and cold bridge partition portion is equal.

[0013] As a preferred technical solution, the hot and cold bridge partition is made of one of PP, PPR, PVC, PE, and PA materials.

[0014] As a preferred technical solution, the metal disc is a stainless steel disc.

[0015] Due to the adoption of the above technical scheme, a heat-insulating, broken-bridge cast-in-place insulation formwork anchor comprises a metal plate, a metal screw perpendicular to the center of the metal plate is welded thereto, a columnar hot-cold bridge partition is injection-molded on one side of the metal plate where the metal screw is installed, the hot-cold bridge partition wraps the metal screw at its axis, the center axis of the metal screw coincides with the center axis of the hot-cold bridge partition, and the length of the hot-cold bridge partition is greater than the length of the metal screw; the beneficial effects of the utility model are: a plastic semi-wrapped structure is adopted, the metal plate is not wrapped, only the metal screw is wrapped, the outside of the metal plate is not wrapped by the plastic plate, the thickness of the metal plate is much smaller than the total thickness of the plastic after wrapping the metal plate, the thickness of the mortar applied to the exterior wall to cover the metal plate is greatly reduced, the amount of mortar used is greatly reduced, the labor hours are reduced, the construction cost is saved, the load on the exterior wall is reduced, and the safety hazard of falling of the exterior plastering leveling layer is greatly reduced. The metal plate is in direct contact with the mortar. Since the metal plate and the mortar are both inorganic materials, the two have good adhesion, and there will be no problems such as stratification and bulging on the contact surface of the mortar and the metal plate. The rupture of the plastering and leveling mortar layer caused by stratification and bulging can be avoided, 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 partition can also prevent heat conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 It is a cross-sectional view of the first embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0019] Figure 3 It is a schematic structural diagram of a metal plate according to the first embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional view of the second embodiment of the utility model;

[0021] Figure 5 yes Figure 4 A partial enlarged view of point II in the middle.

[0022] In the figure: 1-metal plate; 11-through hole; 2-metal screw; 3-cold and hot bridge partition; 31-coating part; 32-fixing part; 33-barb; 34-transition arc surface. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1:

[0025] like Figures 1 to 3 As shown together, a heat-insulating broken bridge cast-in-situ insulation formwork anchor comprises a metal plate 1, a metal screw 2 perpendicular to the center of the metal plate 1 is welded thereto, a columnar hot-cold bridge partition 3 is injection-molded on one side of the metal plate 1 on which the metal screw 2 is installed, the hot-cold bridge partition 3 covers the metal screw 2 at its axis, the central axis of the metal screw 2 coincides with the central axis of the hot-cold bridge partition 3, and the length of the hot-cold bridge partition 3 is greater than the length of the metal screw 2; a plastic semi-covered structure is adopted, the metal plate 1 is not covered, only the metal screw 2 is covered, and the outer side of the metal plate 1 is not wrapped by the plastic plate, The thickness of the metal plate 1 is greatly reduced, and the thickness of the mortar applied to the exterior wall to cover the metal plate 1 is greatly reduced, which greatly reduces the amount of mortar used, reduces labor hours, and saves construction costs. The metal plate 1 is in direct contact with the mortar. Since the metal plate 1 and the mortar are both inorganic materials, the two have good adhesion, and there will be no problems such as stratification and bulging on the contact surface between the mortar and the metal plate 1, avoiding the hidden danger of cracks and water seepage in the leveling mortar layer, extending the service life of the exterior wall insulation system, enhancing safety, and the hot and cold bridge partition 3 can also prevent heat conduction.

[0026] like Figure 3 As shown, the metal plate 1 is a circular metal plate, and a plurality of through holes 11 are provided on the metal plate 1. The metal plate 11 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 plate 1 is also within the protection scope of the present utility model. The through holes 11 can save the raw materials of the metal plate 1 on the one hand, and on the other hand, can increase the contact area between the metal plate 1 and the mortar when applying the mortar, thereby increasing the firmness of the bonding. The diameter of the metal plate 1 is 40 mm, and the thickness of the metal plate 1 is 1 mm.

[0027] like Figure 3As shown, the through holes 11 are arranged in a circumferential array centered on the metal disc 1. The through holes 11 are preferably round holes, which are convenient for processing. Holes of other shapes are also within the protection scope of the present utility model, and the number of the through holes 11 is not limited to the number shown in the drawings. The through holes 11 can be randomly distributed. Preferably, the round holes are evenly arranged around the center of the metal disc 1, so as to ensure the stability of the bonding between the mortar and the metal disc 1. Six through holes 11 are provided in this embodiment.

[0028] As Figure 1 and Figure 2 jointly shown, anti-slip threads are provided on the outer peripheral surface of the metal screw 2. The anti-slip threads strengthen the friction between the metal screw 2 and the cold and heat bridge partition part 3, enhance the stability, and make the cold and heat bridge partition part 3 not easy to slide on the metal screw 2.

[0029] As Figure 1 and Figure 2 jointly shown, the cold and heat bridge partition part 3 includes a covering part 31 for covering the metal screw 2 and a fixing part 32 for connecting with the concrete. The covering part 31 and the fixing part 32 are integrally injection-molded. This section of the covering part 31 is used to contact the insulation board, and this section of the fixing part 32 is used to contact the concrete.

[0030] As Figure 1 and Figure 2 jointly shown, barbs 33 are integrally injection-molded on the outer peripheral surface of the cold and heat bridge partition part 3, and the distance between adjacent barbs 33 along the axial direction of the cold and heat bridge partition part 3 is equal. The distance between two adjacent barbs 33 up and down is 10 mm.

[0031] As Figure 2 shown, the outer diameter of the covering part 31 is larger than the outer diameter of the fixing part 32, and a transition arc surface 34 is provided at the connection between the covering part 31 and the fixing part 32. The outer diameter of the covering part 31 is 10 mm, the outer diameter of the fixing part 32 is 6 mm, and the transition arc surface 34 facilitates the installation of the metal screw 2 into the insulation board and the concrete, and also facilitates injection molding demolding.

[0032] As Figure 1 and Figure 2 jointly shown, the length of the barbs 33 on the covering part 31 is less than the length of the barbs 33 on the fixing part 32, and the radial extension distances of the barbs 33 on the covering part 31 and the barbs 33 on the fixing part 32 along the radial direction of the cold and heat bridge partition part 3 are equal. The radial extension length of the barbs 33 on the covering part 31 is 2 mm, and the radial extension length of the barbs 33 on the fixing part 32 is 4 mm. The outer diameter of the covering part 31, which is 10 mm, plus the length of the barbs 33 on both sides, which is 4 mm, totals 14 mm. The outer diameter of the fixing part 32, which is 6 mm, plus the length of the barbs 33 on both sides, which is 8 mm, is also 14 mm. The advantage of this is that it is convenient for processing and demolding.

[0033] The heat and cold bridge partition part 3 is selected from one of the materials of PP, PPR, PVC, PE, and PA. Injection molding is an existing technology, and those skilled in the art can know this injection molding process, which will not be elaborated in detail here. The metal disc 1 being a stainless steel disc is a preferred technical solution.

[0034] Embodiment 2:

[0035] This embodiment is basically the same as Embodiment 1, and the difference lies in:

[0036] As Figure 4 and Figure 5 shown, the heat and cold bridge partition part 3 includes a main body part 35 covering the outside of the metal screw 2 and a pointed end part 36 extending towards the end. The outer diameter of the main body part 35 remains consistent. Barbs 33 are integrally injection molded on the outer peripheral surface of the main body part 35, and the spacing between adjacent barbs 33 along the axial direction of the heat and cold bridge partition part 3 is equal. The manufacturing process of this embodiment is relatively simpler than that of Embodiment 1. The heat and cold bridge partition part 3 and the barbs 33 are integrally formed, and since the metal screw penetrates the entire main body part 35, it has higher strength than Embodiment 1.

[0037] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. 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. A heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor, characterized in that: The invention comprises a metal plate (1), a metal screw (2) is welded at the center of the metal plate (1) and is perpendicular to the metal screw (2), a columnar hot-cold bridge partition (3) is injection-molded on one side of the metal plate (1) on which the metal screw (2) is mounted, the hot-cold bridge partition (3) covers the metal screw (2) at its axis, the central axis of the metal screw (2) coincides with the central axis of the hot-cold bridge partition (3), and the length of the hot-cold bridge partition (3) is greater than the length of the metal screw (2).

2. The heat-insulating broken bridge cast-in-place thermal insulation formwork anchor as described in claim 1, characterized in that: The metal disk (1) is a circular metal disk, and a plurality of through holes (11) are provided on the metal disk (1).

3. The heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as claimed in claim 2, wherein: The through holes (11) are arranged in an array on the central circumference of the metal plate (1), and anti-slip threads are provided on the outer circumference of the metal screw (2).

4. The heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as claimed in claim 1, wherein: The hot and cold bridge isolating portion (3) comprises a covering portion (31) for covering the metal screw (2) and a fixing portion (32) for connecting to concrete, and the covering portion (31) and the fixing portion (32) are integrally injection molded.

5. The heat-insulating broken bridge cast-in-place thermal insulation formwork anchor as described in claim 4, characterized in that: The outer peripheral surface of the hot-cold bridge partition portion (3) is integrally injection-molded with barbs (33), and the spacing between adjacent barbs (33) along the axial direction of the hot-cold bridge partition portion (3) is equal.

6. The heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as claimed in claim 5, wherein: The outer diameter of the covering portion (31) is greater than the outer diameter of the fixing portion (32), and a transition arc surface (34) is provided at the junction of the covering portion (31) and the fixing portion (32).

7. The heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as claimed in claim 5, wherein: The length of the barb (33) on the covering portion (31) is smaller than the length of the barb (33) on the fixing portion (32), and the barb (33) on the covering portion (31) and the barb (33) on the fixing portion (32) have the same radial extension distance along the hot-cold bridge isolating portion (3).

8. The heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as described in claim 1, wherein: The hot-cold bridge isolating portion (3) comprises a main body portion (35) covering the outside of the metal screw (2) and a tip portion (36) extending toward the end, the outer diameter of the main body portion (35) remains consistent, and the outer peripheral surface of the main body portion (35) is integrally injection-molded with barbs (33), and the spacing between adjacent barbs (33) along the axial direction of the hot-cold bridge isolating portion (3) is equal.

9. A heat-insulating broken bridge cast-in-place thermal insulation formwork anchor as claimed in any one of claims 1 to 8, characterized in that: The hot and cold bridge separating part (3) is made of one of PP, PPR, PVC, PE and PA materials.

10. A heat-insulating and bridge-cut cast-in-place thermal insulation formwork anchor as claimed in any one of claims 1 to 8, characterized in that: The metal disk (1) is a stainless steel disk.

Images