Anti-cracking heat insulation plate for building
By using composite sandwich panels with multiple layers of thermal insulation core and expansion joints in the building insulation structure, combined with tie rods and elastic blocks, the cracking problem caused by thermal expansion and contraction is solved, achieving better thermal insulation effect and longer service life.
Patent Information
- Application Number
- CN202422784321.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Cracking problems caused by thermal expansion and contraction in building insulation structures, especially in external insulation structures, can easily lead to cracks due to uneven deformation of insulation boards caused by temperature differences, affecting lifespan and insulation performance.
Composite sandwich panels are used, with multiple layers of heat-insulating core and partitions between them. Combined with tie rods and elastic blocks, each layer can deform independently. The partitions and elastic structure relieve the stress of thermal expansion and contraction and prevent cracking.
It effectively prevents the insulation board from cracking, improves the service life and thermal insulation performance of the insulation layer, reduces the thermal bridging effect, and extends the durability of the overall structure.
Smart Images
Figure CN223497372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a crack-resistant building insulation board. Background Technology
[0002] There are generally two types of exterior wall insulation structures for buildings: internal insulation, where the insulation layer is located on the inside of the exterior wall (this type of insulation is more susceptible to deformation due to temperature changes), and external insulation, where the insulation layer is located on the outside of the exterior wall. After the building has an insulation structure, a significant temperature difference will occur between the inside and outside. Generally, the main structure of the building is protected by the external insulation, resulting in a more balanced temperature environment and reducing the risk of structural damage. However, the lifespan of the external insulation is shorter. Therefore, an improved method is to directly cast the insulation structure into the shear wall, where the insulation structure has the same lifespan as the main building structure. However, a significant temperature difference still exists between the inside and outside of the insulation structure. Insulation structures are subject to thermal expansion and contraction; the warmer side expands, while the cooler side may contract. For example, in winter, when outdoor temperatures can drop below zero, the outer side of the insulation structure contracts; in summer, when the exterior wall temperature rises significantly, the outer side of the insulation structure expands. This deformation can easily lead to cracks in the insulation panels. Utility Model Content
[0003] To address the above shortcomings, the purpose of this utility model is to provide a crack-resistant thermal insulation board. By using a composite sandwich panel and changing the integral thermal insulation sandwich layer into a multi-layer structure or setting partition joints, the thermal insulation sandwich layer facing the outer wall can shrink, expand, and deform relative to each other to achieve the effect of preventing cracking.
[0004] Therefore, this utility model provides a crack-resistant building insulation board, wherein the insulation board is cast in a shear wall to form an insulation layer, and the two sides of the insulation layer are reinforced concrete inner walls and outer walls. The insulation board includes a panel and an insulation core layer. The insulation core layer is provided with partition joints in the horizontal or vertical direction. The partition joints allow the side of the insulation core layer near the outer wall to independently shrink or expand relative to the other part separated by the partition joints.
[0005] Furthermore, the heat insulation core layer has two or more layers in the width direction, and adjacent heat insulation core layers can independently shrink or expand.
[0006] Furthermore, it also includes tie rods, the two ends of which pass through the heat insulation core layer and are fixed to the corresponding panel. The panel is provided with connectors, which are suitable for connecting to the steel bars of the inner or outer wall through the tie rods.
[0007] The insulation board may also have holes, through which reinforcing bars connected to the steel bars of the outer or inner wall pass, and the ends of the reinforcing bars are fixed to the panel of the insulation board.
[0008] Furthermore, a heat insulation block is provided in the fixing area between the reinforcing bar and the panel, and the heat insulation block separates the end of the reinforcing bar from the concrete of the outer or inner wall.
[0009] The heat insulation core layer can adopt the following structure: a notch is provided on the side near the outer wall, and the two sides of the notch are separation seams, and the outer side of the heat insulation core layer on both sides of the notch can deform independently.
[0010] The heat insulation core layer can also adopt the following structure: the heat insulation core layer is divided into two parts along the length direction, and the two parts separated by the partition seam can deform independently.
[0011] Furthermore, the heat insulation core layer has a Z-shaped cut, and a matching Z-shaped block is provided in the cut. The middle of the Z-shaped block is heat insulation material, and an elastic block is provided on at least the side of the Z-shaped block closest to the outer wall.
[0012] Furthermore, one end of the heat insulation board is provided with a groove, and the other end is provided with a protrusion that mates with the groove of the adjacent heat insulation board.
[0013] Furthermore, an L-shaped elastic block is provided on the outer side of the protrusion.
[0014] The beneficial technical effects of this utility model are as follows:
[0015] This utility model discloses a crack-resistant building insulation board, which sets the insulation sandwich layer into several layers, each of which can be deformed independently or has a cut made in the insulation sandwich layer near the outer wall, thereby improving the cracking of the insulation sandwich layer. Attached Figure Description
[0016] Figure 1 A horizontal cross-sectional view of a specific embodiment 1 of this utility model;
[0017] Figure 2 This is a schematic diagram of the tie rod and the heat insulation board in Example 1;
[0018] Figure 3 This is another way of setting up the tie rod in Example 1;
[0019] Figure 4 This is a schematic diagram of Example 2;
[0020] Figure 5 A schematic diagram illustrating the implementation of the Z-shaped block in step 3;
[0021] Figure 6 This is a schematic diagram of the ends of adjacent insulation panels.
[0022] Explanation of reference numerals in the attached drawings: 1. Shear wall; 2. Thermal insulation board; 201. Thermal insulation core layer; 202. Expansion joint; 203. Panel; 204. Tie rod; 205. Groove; 206. Protrusion; 207. L-shaped elastic block; 208. Rib; 3. Fastener; 4. Thermal insulation block; 5. Z-shaped block; 6. Thermal insulation material; 7. Elastic block. Detailed Implementation
[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0024] Reference Figures 1 to 6 As shown, this utility model discloses a crack-resistant building insulation board 2. The insulation board 2 is cast into a shear wall 1 to form an insulation layer. The insulation layer is flanked by reinforced concrete inner and outer walls. The insulation board 2 includes a panel 203 and an insulation core layer 201. The insulation core layer 201 has horizontal or vertical expansion joints 202, which allow the side of the insulation core layer 201 closest to the outer wall to independently contract or expand relative to the other part separated by the expansion joints 202. In this embodiment, the insulation board 2 is a composite sandwich panel. The panel 203 can be made of metal, and the insulation core layer 201 can be made of existing insulation materials such as polystyrene board or polyurethane board. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown in Embodiment 1, two or more insulation core layers 201 are provided in the width direction of the insulation board 2. Each insulation core layer 201 is formed separately and then stacked together. A separation seam 202 is formed on the surface of adjacent insulation core layers 201, which allows each insulation core layer 201 to shrink and expand independently. The external temperature (heat) is transferred layer by layer. Since each insulation core layer 201 has a heat insulation effect, specifically, taking the summer temperature being higher outside and lower inside as an example, the temperature of the inner side of the first insulation core layer 201 (from the outer wall inward) is lower than that of the outer side. The outer side of the second insulation core layer 201 has the same temperature as the inner side of the first layer, and the temperature of the inner side of the second layer is lower than that of the outer side of the second layer, and so on, until the temperature of the innermost layer is the same as that of the indoor temperature. Therefore, it can be seen that the temperature difference between the two sides of each insulation core layer 201 is smaller than the temperature difference between the external and internal environments (the temperature difference of an integral insulation layer), and each insulation core layer 201 experiences less bending stress compared to traditional insulation layers, thus making it less prone to cracking. Since the outermost insulation core layer 201 operates in the harshest environment, the inner insulation core layers, protected by the insulation effect of the outermost layer 201, experience a smaller temperature difference and are less prone to cracking. Even if the outermost insulation core layer 201 cracks, the inner insulation core layers 201 remain intact and can still function normally as insulation layers. Therefore, the insulation layer of this embodiment has better thermal insulation performance and a longer service life.
[0025] In the above embodiment 1, referring to Figure 2 As shown, a plastic plate can be fixed to the bottom plate of panel 203 as a support. The insulation layer composed of the insulation core layer 201 and the panels 203 on both sides of the insulation layer are connected by tie rods 204. The tie rods 204 can be made of plastic, which has certain heat insulation properties and can prevent the formation of thermal bridges. The tie rods 204 can be fixed to the surface of panel 203 with fasteners 3. Before the concrete of shear wall 1 is poured, short bars can be welded to panel 203, and then the short bars can be welded or fixed to the steel bars of shear wall 1 by other means. If there are many steel bars or the position is not easy to weld, connectors such as threaded pipes can be welded to panel 203 first, and then the bars can be connected to the threaded pipes before pouring concrete.
[0026] In the above embodiment 1, the strength of the plastic reinforcing bar 204 is relatively limited. Alternatively, the reinforcing bar 204 can be replaced with a reinforcing bar 208 made of plastic-steel, where the surface of the plastic-steel material is plastic and the middle is steel wire. (Refer to...) Figure 3As shown, the insulation board 2 has holes. One end of the reinforcing bar 208 is connected to the steel reinforcement of the outer or inner wall. The reinforcing bar 208 passes through the holes in the insulation board 2, and the other end is fixed to the panel 203 of the insulation board 2 by a fastener 3. The outer panel 203 is fixedly connected to the reinforcing bar of the inner wall, and the inner panel 203 is fixedly connected to the reinforcing bar of the outer wall. The reinforcing bars on the inner and outer panels 203 are staggered. To avoid thermal bridging, an insulation block 4 is provided in the fixing area between the reinforcing bar and the panel 203 to separate the end of the reinforcing bar 208 from the concrete of the outer or inner wall. The insulation block 4 has a cavity to accommodate the fastener 3 and the end. The insulation block 4 can be pasted onto the panel 203 and poured into the concrete shear wall 1.
[0027] Reference Figure 4 As shown in Embodiment 2 of this utility model, the heat insulation core layer 201 has a notch on the side near the outer wall, forming a separation seam 202. The outer sides of the heat insulation core layer 201 on both sides of the notch can deform independently. Elastic blocks can also be provided in the notch.
[0028] Reference Figure 5 As shown in Embodiment 3 of this utility model, the heat insulation core layer 201 is divided into two parts along its length. The two parts separated by the partition joint can deform independently. In Embodiment 3, the partition joint is Z-shaped, but it can also be straight. The advantage of the Z-shape is that when deformation occurs, the partition joint is less likely to form a connected channel, thus affecting the heat insulation effect. A matching Z-shaped block 5 can also be provided in the partition joint. The middle of the Z-shaped block 5 is the heat insulation material 6, and at least one elastic block 7 is provided on the side of the Z-shaped block 5 closest to the outer wall. In this embodiment, both sides of the Z-shaped block 5 are elastic blocks 7. The elastic blocks 7 can be made of polyurethane foam or rubber.
[0029] In the above embodiment 3, in order to avoid the formation of gaps between adjacent partition plates during the thermal expansion and contraction deformation process, one end of the heat insulation plate 2 is provided with a groove 205, and the other end is provided with a protrusion 206 that cooperates with the groove 205 of the adjacent heat insulation plate 2. Furthermore, an L-shaped elastic block 207 is provided on the outer side of the protrusion 206.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A crack-resistant building insulation board, wherein the insulation board is cast into a shear wall to form an insulation layer, the insulation layer being reinforced concrete inner and outer walls on both sides, the insulation board comprising a panel and an insulation core layer, characterized in that: The insulation core layer has partition joints in the horizontal or vertical direction, which allow the side of the insulation core layer closest to the outer wall to independently contract or expand relative to the other part separated by the partition joint.
2. The anti-cracking building insulation board according to claim 1, characterized in that: The heat insulation core layer has two or more layers in the width direction, and adjacent heat insulation core layers can independently shrink or expand.
3. The anti-cracking building insulation board according to claim 2, characterized in that: It also includes tie rods, the two ends of which pass through the insulation core layer and are fixed to the corresponding panel. The panel is provided with connectors, which are suitable for connecting to the steel bars of the inner or outer wall through the tie rods.
4. The crack-resistant building insulation board according to claim 3, characterized in that: The insulation board has holes, and the reinforcing bars that are connected to the steel bars of the outer wall or inner wall pass through the holes in the insulation board. The ends of the reinforcing bars are fixed to the panel of the insulation board.
5. A crack-resistant building insulation board according to claim 4, characterized in that: The area where the reinforcing bar is fixed to the panel is provided with a heat insulation block, which separates the end of the reinforcing bar from the concrete of the outer or inner wall.
6. The anti-cracking thermal insulation board for buildings according to claim 1, characterized in that: The insulation core layer has a notch on the side near the outer wall, and there are separation seams on both sides of the notch. The outer side of the insulation core layer on both sides of the notch can deform independently.
7. The crack-resistant building insulation board according to claim 1, characterized in that: The heat insulation core layer is divided into two parts along its length, and the two parts separated by the partition seam can deform independently.
8. A crack-resistant building insulation board according to claim 7, characterized in that: The heat insulation core layer has a Z-shaped cut, and a matching Z-shaped block is provided in the cut. The middle of the Z-shaped block is heat insulation material, and an elastic block is provided on at least the side of the Z-shaped block closest to the outer wall.
9. A crack-resistant building insulation board according to any one of claims 1 to 8, characterized in that: One end of the heat insulation board is provided with a groove, and the other end is provided with a protrusion that mates with the groove of the adjacent heat insulation board.
10. A crack-resistant building insulation board according to claim 9, characterized in that: An L-shaped elastic block is provided on the outer side of the protrusion.