Sandwich thermal insulation wall body connecting piece and sandwich thermal insulation wall body

Abstract

The utility model provides a sandwich thermal insulation wall body connecting piece and a sandwich thermal insulation wall body, the sandwich thermal insulation wall body connecting piece comprises a connecting rod which is a fiber reinforced composite material connecting rod; the positioning plate sleeves the connecting rod, and the inner side of the positioning plate is matched with the connecting rod; the rib ring sleeves the connecting rod, and the inner side of the rib ring is matched with the connecting rod; and the lantern ring is sleeved on the connecting rod, the inner side of the lantern ring is matched with the connecting rod, and the lantern ring is fixed between the positioning plate and the rib ring through glue. The sandwich thermal insulation wall body comprises an outer prefabricated concrete plate, a thermal insulation layer, an inner prefabricated concrete plate and the sandwich thermal insulation wall body connecting piece which are sequentially arranged from outside to inside in the thickness direction of the wall body. The two-way shear bearing capacity of the sandwich heat preservation wall body connecting piece is different, the sandwich heat preservation wall body connecting piece can be evenly arranged in two-way plates with different two-way design loads, installation is convenient and fast, and the sandwich heat preservation wall body connecting piece has wide application prospects in energy-saving buildings.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving building wall connection technology, specifically to a sandwich insulated wall connector and a sandwich insulated wall. Background Technology

[0002] Sandwich insulated walls are a new type of precast concrete wall that integrates load-bearing (or enclosure), energy saving, and decoration functions. The wall consists of inner and outer concrete wall panels, insulation material layers, and connectors. It features fast construction speed and good insulation effect, and can achieve the same lifespan for insulation and structure. It is a green and environmentally friendly form of precast wall and one of the important directions for the future development of precast concrete walls.

[0003] Connectors for sandwich insulated walls are crucial components that connect the inner and outer concrete slabs of precast sandwich insulated walls and transfer shear forces. Currently, stainless steel connectors are commonly used in sandwich insulated walls. However, the thermal conductivity of stainless steel connectors is approximately 600 times that of the insulation material. Therefore, cold (thermal) bridges are easily generated at the connection points where stainless steel connectors penetrate the insulation layer, affecting the thermal performance of the sandwich insulated wall, especially for ultra-low energy consumption building sandwich insulated exterior walls. Therefore, it is necessary to develop a sandwich insulated wall connector with both good physical and mechanical properties. Utility Model Content

[0004] This utility model was developed to solve the above-mentioned problems, and its purpose is to provide a sandwich insulation wall connector and a sandwich insulation wall.

[0005] This utility model provides a sandwich insulation wall connector, characterized by: a connecting rod, which is a fiber-reinforced composite material connecting rod; a positioning plate, which is sleeved on the connecting rod and has its inner side cooperates with the connecting rod; a rib ring, which is sleeved on the connecting rod and has its inner side cooperates with the connecting rod; and a collar, which is sleeved on the connecting rod and has its inner side cooperates with the connecting rod, and is fixed between the positioning plate and the rib ring by adhesive.

[0006] The sandwich insulation wall connector provided by this utility model may also have the following features: the positioning plate, rib ring and collar are all made of ABS plastic and are integrally formed by injection molding process, and the thickness of the positioning plate and rib ring is 2 to 5 mm.

[0007] The sandwich insulation wall connector provided by this utility model may also have the following features: the cross-section of the connecting rod is a cross-shaped rib with a chamfer, the chamfer shape is a triangle, a semi-circle or a polygon, the cross-section of the positioning plate, the collar and the rib ring is elliptical, the maximum radius of the positioning plate is 5-7 mm longer than the maximum radius of the collar, the maximum radius of the rib ring on the side closer to the collar ring is 2-3 mm longer than the maximum radius of the collar ring, and the maximum radius of the rib ring on the side farther from the collar ring is the same as the maximum radius of the collar ring.

[0008] The sandwich insulation wall connector provided by this utility model may also have the following features: a thin-walled elliptical ring is provided on the outer side of the collar, the wall thickness of the thin-walled elliptical ring is 2mm to 3mm, the outer side is a rough surface, and the rough surface is provided with a number of hemispherical protrusions or threads, the radius of the hemispherical protrusions is 1.5mm.

[0009] The sandwich insulation wall connector provided by this utility model may also have the following features: the cross-shaped rib includes a long rib and a short rib in a cross shape with different directions, the length of the long rib is greater than the length of the short rib, and the ratio of the length of the short rib to the length of the long rib is 1:(1.2~2).

[0010] The sandwich insulation wall connector provided by this utility model may also have the following features: the connecting rod includes two ends and a middle part, the middle part is located between the two ends and is used to fit the positioning plate, rib ring and collar, and the two ends are respectively provided with wedges on the side near the middle part, and the corners of the wedges are provided with arc transitions, and the shape of the wedges is a triangle, a semi-circle, a rectangle or a polygon.

[0011] The sandwich insulation wall connector provided by this utility model may also have the following features: wherein the wedge angle includes the wedge angle of the short rib and the wedge angle of the long rib, the angle between the wedge angle of the short rib and the outermost side of the short rib is 11°, and the angle between the wedge angle of the long rib and the outermost side of the long rib is 14°.

[0012] The sandwich insulation wall connector provided by this utility model may also have the following features: a rectangular smooth transition area is provided around the positioning plate, the long side of the rectangle is parallel to the long rib plate, the short side of the rectangle is parallel to the short rib plate, the ratio of the length of the long side to the long rib plate is 1:(1.2~1.4), and the ratio of the length of the short side to the short rib plate is 1:(1.2~1.4).

[0013] This utility model also provides a sandwich insulated wall, characterized by: an outer precast concrete slab disposed on the outermost side of the wall; an insulation layer disposed on the inner side of the outer precast concrete slab; an inner precast concrete slab disposed on the inner side of the insulation layer; and the aforementioned sandwich insulated wall connector disposed inside the outer precast concrete slab, the insulation layer, and the inner precast concrete slab, thereby connecting the outer precast concrete slab, the insulation layer, and the inner precast concrete slab.

[0014] The sandwich insulation wall provided by this utility model may also have the following features: the positioning plate is located above the insulation layer and is closely attached to the insulation layer, and the rib ring is located below the insulation layer and is closely attached to the insulation layer.

[0015] Functions and effects of utility models

[0016] According to the sandwich insulated wall connector and sandwich insulated wall involved in this utility model, by selecting fiber reinforced composite materials, the sandwich insulated wall connector has a low thermal conductivity, good durability, high strength, and convenient construction. It integrates insulation and load-bearing (or enclosure). The connector has different shear bearing capacities in both directions and can be evenly arranged in two-way slabs with different design loads in both directions (about 1.2 to 2.0). It is convenient for positioning and construction, easy to install, industrially produced, and low in cost. Moreover, it has good stress performance and has broad application prospects in energy-saving buildings.

[0017] The sandwich insulation wall connector of this invention can effectively avoid the cold (heat) bridge effect of the wall at the connector, while reducing the thickness of the insulation layer and significantly improving the insulation effect and safety of the wall. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the sandwich insulation wall connector in an embodiment of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Schematic diagram of AA section in the middle;

[0020] Figure 3 This is a schematic diagram of the connecting rod in an embodiment of this utility model;

[0021] Figure 4 This is a utility model Figure 3 Schematic diagram 1-1 in the diagram;

[0022] Figure 5 This is a utility model Figure 3 Schematic diagram 2-2 in the figure;

[0023] Figure 6 This is a utility model Figure 3 Schematic diagram 3-3 in the figure;

[0024] Figure 7 This is a schematic diagram of the collar structure in an embodiment of this utility model;

[0025] Figure 8 This is a cross-sectional view of the sandwich insulated wall of this utility model;

[0026] Figure 9 This is a plan view of the connection arrangement of the sandwich insulation wall connectors in the sandwich insulation wall of this utility model. Detailed Implementation

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically describe the sandwich insulated wall connector and the sandwich insulated wall of this utility model.

[0029] Figure 1 This is a schematic diagram of the structure of the sandwich insulation wall connector in an embodiment of this utility model. Figure 2 This is a utility model Figure 1 A schematic diagram of the AA cross section. Figure 3 This is a schematic diagram of the connecting rod in an embodiment of this utility model. Figure 4 This is a utility model Figure 3 The diagram in Figure 1-1 is shown in the figure. Figure 5 This is a utility model Figure 3 Schematic diagram 2-2 in the figure. Figure 6 This is a utility model Figure 3 Schematic diagram 3-3 in the figure. Figure 7 This is a schematic diagram of the collar structure in an embodiment of this utility model.

[0030] like Figure 1-7 As shown, the sandwich insulation wall connector 100 in this embodiment includes a connecting rod 10, a positioning plate 20, a rib ring 30, and a collar 40. The positioning plate 20, the rib ring 30, and the collar 40 are all made of ABS plastic and are integrally formed by injection molding.

[0031] The connecting rod 10 is a fiber-reinforced composite material (FRP) connecting rod, integrally formed using a pultrusion process. It features low thermal conductivity, good durability, high strength, and convenient construction, effectively preventing cold (thermal) bridging effects in the wall at the connection points. Compared to stainless steel connectors, FRP connectors can effectively reduce the insulation layer thickness by 60mm, significantly improving the wall's insulation performance and safety.

[0032] The cross section of the connecting rod 10 is a cross-shaped rib with a chamfer 13. The chamfer 13 is triangular, semi-circular or polygonal. The cross-shaped rib includes a long rib 11 and a short rib 12 with unequal directions and biaxial asymmetry. The length of the long rib 11 is greater than the length of the short rib 12. The ratio of the length of the short rib 12 to the length of the long rib 11 is 1:(1.2~2).

[0033] The connecting rod 10 includes two ends 14 and a middle part 15. The middle part 15 is located between the two ends 14 and is used to fit the positioning plate 20, the rib ring 30 and the collar 40. The two ends 14 are respectively provided with wedges 16 and 17 on the side near the middle part 15, thereby enhancing the concrete anchoring effect. The corners of the wedges 16 and 17 are provided with arc transitions. The shape of the wedges 16 and 17 is triangular, semi-circular, rectangular or polygonal.

[0034] Wedge angles 16 and 17 include the wedge angle 17 of the short rib and the wedge angle 16 of the long rib. The angle between the wedge angle 17 of the short rib and the outermost side of the short rib 12 is 11°, and the angle between the wedge angle 16 of the long rib and the outermost side of the long rib 11 is 14°.

[0035] The positioning plate 20 is fitted onto the connecting rod 10, and its inner side mates with the connecting rod 10.

[0036] The thickness of the positioning plate 20 and the rib ring 30 is 2-5 mm. The cross-section of the positioning plate 20 is elliptical, and its maximum radius is 6 mm longer than the maximum radius of the collar 40. Therefore, the position of the positioning plate 20 extends 6 mm beyond the collar 40.

[0037] The positioning plate 20 has a rectangular smooth transition area 21 around its perimeter. The long side of the rectangle is parallel to the long rib plate 11, and the short side of the rectangle is parallel to the short rib plate 12. The ratio of the length of the long side to the length of the long rib plate 11 is 1:(1.2~1.4), and the ratio of the length of the short side to the length of the short rib plate 12 is 1:(1.2~1.4).

[0038] The rib ring 30 is sleeved on the connecting rod 10, and its inner side mates with the connecting rod 10.

[0039] The rib 30 has a thickness of 2–5 mm and an elliptical cross-section. The side of the rib 30 closer to the collar 40 is wider, and the side farther from the collar 40 is narrower. Specifically, the maximum radius of the rib 30 on the side closer to the collar 40 is 2 mm longer than the maximum radius of the collar 40, and the maximum radius of the rib 30 on the side farther from the collar 40 is the same as the maximum radius of the collar 40.

[0040] The collar 40 is fitted onto the connecting rod 10, and its inner side mates with the connecting rod 10. It is fixed between the positioning plate 20 and the rib ring 30 by adhesive.

[0041] The collar 40 has an elliptical cross-section. A thin-walled elliptical ring 41 is provided on the outer side of the collar 40. The wall thickness of the thin-walled elliptical ring 41 is 2mm to 3mm. The outer side is a rough surface 42. The rough surface 42 is provided with several hemispherical protrusions or threads. The radius of the hemispherical protrusions is 1.5mm.

[0042] The aforementioned sandwich insulation wall connector 100 can be used in sandwich insulation wall 200.

[0043] Figure 8 This is a cross-sectional view of the sandwich insulated wall of this utility model. Figure 9 This is a plan view of the connection arrangement of the sandwich insulation wall connectors in the sandwich insulation wall of this utility model.

[0044] like Figure 8-9 As shown, this utility model also discloses a sandwich insulated wall 200, which includes, arranged sequentially from the outside to the inside along the wall thickness direction: an outer leaf precast concrete slab 50, an insulation layer 60, an inner leaf precast concrete slab 70, and a plurality of the above-mentioned sandwich insulated wall connectors 100.

[0045] Several sandwich insulated wall connectors 100 are evenly arranged inside the outer leaf precast concrete slab 50, the insulation layer 60 and the inner leaf precast concrete slab 70, thereby connecting the outer leaf precast concrete slab 50, the insulation layer 60 and the inner leaf precast concrete slab 70.

[0046] The positioning plate 20 in the sandwich insulation wall connector 100 is located above the insulation layer 60 and is tightly fitted to the insulation layer 60, while the rib ring 30 is located below the insulation layer 60 and is tightly fitted to the insulation layer 60.

[0047] The role and effect of the embodiments

[0048] According to the sandwich insulated wall connector and sandwich insulated wall involved in this utility model, by selecting fiber-reinforced composite materials, the sandwich insulated wall connector has a low thermal conductivity, good durability, high strength, and is easy to construct. It can effectively avoid the cold (thermal) bridging effect of the wall at the connector, while reducing the thickness of the insulation layer, significantly improving the insulation effect and safety of the wall. This utility model provides a sandwich insulated wall connector that integrates insulation and load-bearing (or enclosure). This connector is easy to position, convenient to install, industrially produced, low in cost, and has good load-bearing performance, and has broad application prospects.

[0049] This invention enhances the concrete anchoring effect by providing wedge angles on one side of each end of the connecting rod near the middle.

[0050] The cross-shaped rib of this utility model has a cross-shaped cross section with two unequal directions. Since the loads on the connectors in the horizontal and vertical directions of the two-way sandwich insulation wall panel are different, especially the shear force, the size ratio of the two directions of the connectors is designed to be between 1.2 and 2.0. After using the cross-shaped ribs with two unequal directions during construction, the connectors can be evenly arranged, effectively reducing construction errors and improving construction efficiency.

[0051] In this invention, the cross-shaped rib plate of the connecting rod is provided with a chamfer. The chamfer is a reinforced part at the interface of the two-way rib plates. This is because the inventor conducted a stress performance test on the completed connector and found that the interface of the two-way rib plates is the position of sudden stress change in the connector, forming a weak part. Therefore, this part is reinforced and the chamfer is set to reduce the sudden stress change in the cross section.

[0052] In the sandwich insulated wall of this utility model, the positioning plate and the rib ring are respectively stuck at the junction of the insulation layer and the inner leaf precast concrete slab and the junction of the insulation layer and the outer leaf precast concrete slab, which play the role of pre-positioning during pouring and preventing grout leakage.

[0053] The cross-shaped rib of this utility model has a cross-shaped cross section with two unequal directions, which makes the stress distribution in the two-way plate reasonable. The connectors are evenly arranged during construction, reducing construction errors and improving construction efficiency.

[0054] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sandwich-insulated wall connector, characterized in that, include: The connecting rod is a fiber-reinforced composite material connecting rod; A positioning plate is sleeved on the connecting rod, and its inner side mates with the connecting rod; A rib ring is fitted onto the connecting rod, and its inner side mates with the connecting rod. as well as A collar is fitted onto the connecting rod, with its inner side engaging with the connecting rod, and is fixed between the positioning plate and the rib ring by adhesive.

2. The sandwich insulation wall connector according to claim 1, characterized in that: in, The positioning plate, the rib ring, and the collar are all made of ABS plastic and are integrally formed by injection molding. The thickness of the positioning plate and the rib ring is 2-5 mm.

3. The sandwich insulation wall connector according to claim 1, characterized in that: in, The cross-section of the connecting rod is a cross-shaped rib with a chamfer, and the chamfer can be triangular, semi-circular, or polygonal. The positioning plate, the collar, and the rib ring have elliptical cross-sections. The maximum radius of the positioning plate is 5-7 mm longer than the maximum radius of the collar. The maximum radius of the rib ring on the side closer to the collar is 2-3 mm longer than the maximum radius of the collar. The maximum radius of the rib ring on the side farther from the collar is the same as the maximum radius of the collar.

4. The sandwich insulation wall connector according to claim 3, characterized in that: in, A thin-walled elliptical ring is provided on the outer side of the collar. The wall thickness of the thin-walled elliptical ring is 2mm to 3mm. The outer side is a rough surface. The rough surface is provided with a number of hemispherical protrusions or threads. The radius of the hemispherical protrusions is 1.5mm.

5. The sandwich insulation wall connector according to claim 4, characterized in that: in, The cross-shaped rib includes a long rib and a short rib in a cross shape with different directions. The length of the long rib is greater than the length of the short rib, and the ratio of the length of the short rib to the length of the long rib is 1:(1.2~2).

6. The sandwich insulation wall connector according to claim 5, characterized in that: in, The connecting rod includes two ends and a middle part. The middle part is located between the two ends and is used to fit the positioning plate, the rib ring and the collar. The two ends are respectively provided with wedges on the side near the middle part. The corners of the wedges are provided with arc transitions. The shape of the wedges is a triangle, a semicircle, a rectangle or a polygon.

7. The sandwich insulation wall connector according to claim 6, characterized in that: in, The wedge angle includes the wedge angle of the short rib and the wedge angle of the long rib. The wedge angle of the short rib and the outermost side of the short rib are at an angle of 11°, and the wedge angle of the long rib and the outermost side of the long rib are at an angle of 14°.

8. The sandwich insulation wall connector according to claim 5, characterized in that: in, The positioning plate has a rectangular smooth transition area around its perimeter. The long side of the rectangle is parallel to the long rib plate, and the short side of the rectangle is parallel to the short rib plate. The ratio of the length of the long side to the length of the long rib plate is 1:(1.2~1.4), and the ratio of the length of the short side to the length of the short rib plate is 1:(1.2~1.4).

9. A sandwich-insulated wall system, characterized in that, include: The outermost precast concrete slab is located on the outermost side of the wall; An insulation layer is provided on the inner side of the outer leaf precast concrete slab; Inner leaf precast concrete slab, disposed on the inner side of the insulation layer; and The sandwich insulated wall connector according to any one of claims 1 to 8 is disposed inside the outer leaf precast concrete slab, the insulation layer and the inner leaf precast concrete slab, thereby connecting the outer leaf precast concrete slab, the insulation layer and the inner leaf precast concrete slab.

10. The sandwich insulated wall according to claim 9, characterized in that: in, The positioning plate is located above the insulation layer and is in close contact with the insulation layer, while the rib ring is located below the insulation layer and is in close contact with the insulation layer.

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