Anti-crack heat preservation structure of building outer wall

Abstract

The utility model discloses a building outer wall anti-crack heat preservation structure which comprises a base wall body and an outer wall body attached to the base wall body, and a leveling layer, a heat preservation layer, an anti-crack layer and a facing plate are sequentially arranged on the outer wall body. A connecting hole is reserved in the base wall body, and a fixing assembly is nailed into the connecting hole. The fixing assembly comprises a connecting sleeve, a rear expanded-base anchor bolt head installed at the front end of the connecting sleeve and a bonding reinforcing plate installed at the rear end of the connecting sleeve, the connecting sleeve sequentially penetrates through the anti-crack layer, the heat preservation layer and the leveling layer, and the bonding reinforcing plate is connected to the facing plate. According to the anti-crack heat preservation structure of the building outer wall, the anti-crack heat preservation capacity of the outer wall body is improved through the combination of the composite anti-crack layer and the heat preservation layer, and therefore the stability of the outer wall body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to an anti-cracking and heat-insulating structure for a building exterior wall. Background Technique

[0002] Walls mainly include load-bearing walls and non-load-bearing walls, which mainly play the roles of enclosing and partitioning spaces. In a wall load-bearing structure building, the wall combines load-bearing and enclosing functions. In a framework structure system building, the function of the wall is to enclose and partition spaces, and the wall should have sufficient strength and stability.

[0003] The exterior wall structure is a crucial structure in the building structure. It plays a major maintenance role for the main building structure and can resist external physical, chemical, and biological damages. As the most important exterior wall structure, it needs to have a good heat-insulating structure. The main function of the exterior wall heat-insulating system is to keep the indoor heat, reduce energy consumption, and improve the living comfort. In the prior art, the heat-insulating structure mainly depends on the selection of heat-insulating materials, which are crucial for the heat-insulating performance. For example, common exterior wall heat-insulating materials on the market currently include expanded vitrified microbead exterior wall heat-insulating materials, polymer mortar polystyrene granule exterior wall heat-insulating materials, and extruded polystyrene board exterior wall heat-insulating materials, etc.

[0004] Anti-cracking mainly means that the exterior wall external thermal insulation of a building should be firmly combined with the base wall. By improving the anti-cracking performance, it is ensured that the heat-insulating structure of the building exterior wall can play a long-term heat-insulating role without failure. However, in the prior art, anti-cracking mainly still adopts the setting of a mortar anti-cracking layer. Relying solely on the mortar layer is difficult to resist the load combined by various internal and external forces such as wind force, self-weight, and normal collisions under the most unfavorable temperature and humidity conditions in the local area without generating cracks. Content of the Utility Model

[0005] The purpose of the utility model is to address the above problems existing in the prior art and propose an anti-cracking and heat-insulating structure for a building exterior wall. By combining a composite anti-cracking layer and a heat-insulating layer, the anti-cracking and heat-insulating ability of the exterior wall is improved, thereby enhancing the stability of the exterior wall.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is specifically as follows:

[0007] An anti-cracking and heat-insulating structure for a building exterior wall includes a base wall, an exterior wall attached to the base wall, and a leveling layer, a heat-insulating layer, an anti-cracking layer, and a facing panel are sequentially arranged on the exterior wall; connection holes are reserved in the base wall, and fixing components are nailed into the connection holes; the fixing components include a connection sleeve, a post-expansion anchor bolt head installed at the front end of the connection sleeve, and a bonding reinforcement plate installed at the rear end of the connection sleeve, and the connection sleeve sequentially passes through the anti-cracking layer, the heat-insulating layer, and the leveling layer, and the bonding reinforcement plate is connected to the facing panel.

[0008] Furthermore, the bonding reinforcement plate is installed and fixed between multiple connecting sleeves and fixed with screws.

[0009] Furthermore, a plurality of bonding barbs are provided on the bonding reinforcement plate.

[0010] Furthermore, the crack-resistant layer includes a mesh cloth and crack-resistant mortar layers provided on both sides of the mesh cloth.

[0011] Furthermore, the heat-insulating layer includes an adhesive layer and a polystyrene board, and the polystyrene board is fixed to the base wall through the adhesive layer.

[0012] Furthermore, internal connecting threads are provided at both ends of the connecting sleeve.

[0013] Compared with the prior art, the advantages of the present utility model are as follows: First, the present utility model adopts reserved connecting holes on the base wall to reduce the later drilling operation, and inserts the post-expansion anchor bolt head into the reserved connecting holes. It has extremely high bearing capacity, and the anchoring effect is equivalent to that of embedded parts. It can directly fix the outer wall, and has a high safety factor. Second, by adding a mesh cloth in the crack-resistant layer, the surface structure will not easily crack, improving its service life and durability. Finally, by providing a reinforcement bonding plate at the end of the connecting sleeve to enhance the connection of the facing plate, the problem that the facing plate is prone to falling off later is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 is a schematic structural diagram of the building exterior wall crack-resistant and heat-insulating structure provided by the present utility model;

[0016] Figure 2 is a schematic structural diagram of the bonding reinforcement plate of the building exterior wall crack-resistant and heat-insulating structure provided by the present utility model.

[0017] Reference numerals: 1, base wall; 2, post-expansion anchor bolt head; 3, leveling layer; 4, heat-insulating layer; 5, crack-resistant layer; 6, facing plate; 7, connecting sleeve; 8, bonding reinforcement plate; 9, bonding barb. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0022] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] It should be noted that the features in the embodiments of the present utility model can be combined with each other without conflict.

[0025] Such as Figure 1 - Figure 2, a crack-resistant and heat-insulating structure for building exterior walls, comprising a base wall 1 and an exterior wall attached to the base wall 1. A leveling layer 3, a heat-insulating layer 4, a crack-resistant layer 5 and a facing panel 6 are sequentially arranged on the exterior wall; connection holes are reserved in the base wall 1, and fixing components are nailed into the connection holes; the fixing components include a connection sleeve 7, a post-expansion anchor head 2 installed at the front end of the connection sleeve 7, and an adhesive reinforcement plate 8 installed at the rear end of the connection sleeve 7. The connection sleeve 7 sequentially passes through the crack-resistant layer 5, the heat-insulating layer 4 and the leveling layer 3, and the adhesive reinforcement plate 8 is connected to the facing panel 6.

[0026] Compared with the prior art, in the prior art, thermal insulation mortar is usually set on the surface of the building exterior wall. To enhance the stability of the mortar during use, and on the basis of the thermal insulation mortar, in order to enhance the crack-resistant performance, a crack-resistant mesh cloth, etc. is also set outside the formed heat-insulating layer 4. The existing crack-resistant mesh cloth is usually made of glass fiber. Although it has certain strengthening performance, its own structural strength is low. The mortar attached to the lower layer of the mesh cloth is easily affected by the gravity of the mortar on the upper layer of the mesh cloth, and the crack-resistant performance of the mesh cloth decreases. In the present utility model, on the one hand, the traditional heat-insulating layer 4 and crack-resistant layer 5 are respectively set, but on the other hand, the connection performance is increased by setting the post-expansion anchor head 2, so that the overall exterior wall can be directly hung on the base wall 1, thereby simplifying the construction intensity. At the same time, the connection sleeve 7 is connected to the rear end of the post-expansion anchor head 2 to tighten the connection relationship between the heat-insulating layer 4 and the crack-resistant layer 5, making it not easy to fall off.

[0027] The adhesive reinforcement plate 8 is installed and fixed between a plurality of connection sleeves 7 and fixed with screws. A plurality of adhesive barbs 9 are arranged on the adhesive reinforcement plate 8. By installing and fixing the adhesive reinforcement plate 8 between a plurality of connection sleeves 7 and then fixedly connecting the facing panel 6 through the adhesive reinforcement plate 8, on the basis of spraying an adhesive between the adhesive reinforcement plate 8 and the facing panel 6 to form an adhesive layer, the barbs on the adhesive reinforcement plate 8 penetrate into the facing panel 6, which can effectively enhance the stability of the facing panel 6 and avoid adhesive failure, and the problem that the facing panel 6 is easily fallen off in strong wind weather.

[0028] The crack-resistant layer 5 includes a mesh cloth and crack-resistant mortar layers arranged on both sides of the mesh cloth. By arranging the mesh cloth in the crack-resistant mortar, the mortar will not crack easily, improving the crack-resistant performance.

[0029] The heat-insulating layer 4 includes an adhesive layer and a polystyrene board, and the polystyrene board is fixed to the base wall 1 through the adhesive layer.

[0030] Both ends of the connection sleeve 7 are provided with internal connection threads.

[0031] In specific use, it is necessary to level the surface of the base wall 1 first. Generally speaking, traditional mortar can be used for leveling to avoid the uneven surface of the base wall 1 affecting the adhesion of the insulation layer 4.

[0032] Example 1: Using traditional technology, the polystyrene board of the insulation layer 4 is adhered with a coated adhesive to form an adhesive layer on the surface of the polystyrene board, and then it is attached to the base wall 1. Similarly, cement mortar is evenly applied on the fiberglass mesh, and an anti-cracking mortar layer is formed after curing. Then, fixing parts such as screws or bolts are inserted into the reserved connection holes on the base wall 1 to strengthen the connection relationship between the layers and prevent falling off. Finally, the veneer 6 is adhered.

[0033] Example 2: In the form of a prefabricated curtain wall panel pre-formed in the factory, the fiberglass mesh of the anti-cracking layer 5 is adhered to the polystyrene board, and holes are drilled in the polystyrene board to accommodate the connecting sleeve 7 to pass through. During on-site construction, the post-installed anchor bolt head 2 is inserted into the reserved connection hole of the base wall 1, and the polystyrene board is directly aligned and hung on the post-installed anchor bolt head 2, and the sleeve is inserted to connect and strengthen the bonding board. Then, the gaps between the polystyrene boards are caulked, and finally the veneer 6 is adhered to the strengthened bonding board.

[0034] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A building exterior wall anti-cracking thermal insulation structure, characterized in that: The invention comprises a base wall (1), an outer wall attached to the base wall (1), and a leveling layer (3), a thermal insulation layer (4), an anti-cracking layer (5) and a veneer (6) are sequentially arranged on the outer wall; a connection hole is reserved in the base wall (1), and a fixing component is nailed into the connection hole; the fixing component comprises a connection sleeve (7), a rear bottom anchor bolt head (2) installed at the front end of the connection sleeve (7), and an adhesive reinforcement plate (8) installed at the rear end of the connection sleeve (7); the connection sleeve (7) passes through the anti-cracking layer (5), the thermal insulation layer (4) and the leveling layer (3) in sequence, and the adhesive reinforcement plate (8) is connected to the veneer (6).

2. The anti-cracking thermal insulation structure for building exterior walls according to claim 1 is characterized in that: The bonding reinforcement plate (8) is installed and fixed between a plurality of connection sleeves (7) and fixed with screws.

3. The anti-cracking thermal insulation structure for building exterior walls according to claim 2 is characterized in that: The bonding reinforcement plate (8) is provided with a plurality of bonding barbs (9).

4. The anti-cracking thermal insulation structure for building exterior walls according to claim 1 is characterized in that: The anti-cracking layer (5) comprises a mesh cloth and an anti-cracking mortar layer arranged on both sides of the mesh cloth.

5. The anti-cracking and thermal insulation structure for building exterior walls according to claim 1 is characterized in that: The thermal insulation layer (4) comprises an adhesive layer and a polystyrene board, and the polystyrene board is fixed to the base wall (1) via the adhesive layer.

6. The anti-cracking and thermal insulation structure for building exterior walls according to claim 1 is characterized in that: Both ends of the connecting sleeve (7) are provided with connecting internal threads.

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