Building outer wall water resisting structure

Abstract

The utility model discloses a building outer wall water -resisting structure, including wall, the one side of wall is provided with outer wall structure, the outer wall structure includes flexible waterproof layer, rigid waterproof layer, flame -retardant layer and thermal -insulation decorative layer, the inside of rigid waterproof layer is provided with drainage component, and the drainage component includes horizontal water guide groove, water stop, vertical downspout and drain pipe, horizontal water guide groove, water stop and vertical downspout all are provided with a plurality of, horizontal water guide groove is provided as semicircular groove, a plurality of horizontal water guide groove vertical interval arrangement, water stop fixed mounting in the rear end between two adjacent horizontal water guide grooves, a plurality of vertical downspout longitudinal interval arrangement, vertical downspout penetrates horizontal water guide groove. Its realized the ability of water -resisting, increased practicality, thereby solved the problem that building outer wall is easy to infiltrate rainwater when rainy day, and the moisture is accumulated in the wall body, is easy to lead to the internal structure of wall body damage, influences the service life of building.

Description

Technical Field

[0001] This utility model relates to the field of water-blocking structure technology, specifically a water-blocking structure for building exterior walls. Background Technology

[0002] As the external envelope of a building, the exterior wall plays an important role in resisting external environmental erosion and ensuring the safety and comfort of the interior space. Its structure is usually composed of multiple layers of materials, such as the base wall, insulation layer, protective layer and finishing layer.

[0003] For example, the authorized patent with announcement number CN205577161U (a building exterior wall structure) includes a base wall, on which a cement mortar layer with a thickness of more than 5mm is provided, at least one wire mesh layer is laid on the cement mortar layer, an adhesive layer with a thickness of more than 10mm is laid on the wire mesh layer, a thermal insulation layer is laid on the adhesive layer, at least two layers of mortar plaster base with a total thickness of more than 13mm are laid on the thermal insulation layer, and exterior wall bricks are laid on the outer surface of the mortar plaster base.

[0004] While the existing technologies mentioned above offer good thermal insulation and fire resistance, they lack a water-blocking structure. Consequently, rainwater easily seeps into the building's exterior walls during rainy weather, accumulating inside the walls and potentially damaging the internal structure, thus affecting the building's lifespan. Therefore, there is an urgent market need to develop a water-blocking structure for building exterior walls to help people solve these existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a water-blocking structure for building exterior walls to solve the problem mentioned in the background art that rainwater easily seeps into building exterior walls during rainy days, and the water accumulates inside the wall, which can easily lead to damage to the internal structure of the wall and affect the service life of the building.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-blocking structure for building exterior walls, comprising a wall body, an exterior wall structure provided on one side of the wall body, the exterior wall structure comprising a flexible waterproof layer, a rigid waterproof layer, a flame-retardant layer and a thermal insulation and decorative layer, a drainage component provided inside the rigid waterproof layer, the drainage component comprising a horizontal water guide channel, a water-blocking plate, a vertical downpipe and a drain pipe, multiple horizontal water guide channels, water-blocking plates and vertical downpipes are provided, the horizontal water guide channel is configured as a semi-circular channel, multiple horizontal water guide channels are arranged vertically at intervals, the water-blocking plate is fixedly installed at the rear end between two adjacent horizontal water guide channels, multiple vertical downpipes are arranged longitudinally at intervals, the vertical downpipes pass through the horizontal water guide channels, the drain pipe is provided below the vertical downpipes, and the drain pipe is connected to the vertical downpipes.

[0007] Preferably, the flexible waterproof layer, rigid waterproof layer, flame-retardant layer and thermal insulation decorative layer are arranged from the inside to the outside, and a mortar leveling layer is provided between the wall and the flexible waterproof layer. The mortar leveling layer is coated with a nano-silica hydrophobic coating on the side of the mortar leveling layer facing the flexible waterproof layer.

[0008] Preferably, the flexible waterproof layer includes a polyurethane waterproof layer and a non-woven fabric reinforcement layer, wherein the polyurethane waterproof layer is disposed on the inner side of the non-woven fabric reinforcement layer.

[0009] Preferably, the rigid waterproof layer is made of polymer cement mortar with added waterproofing agent, and a steel mesh is provided inside the rigid waterproof layer along one side of the drainage component.

[0010] Preferably, an elastic pad is provided between the flame-retardant layer and the thermal insulation decorative layer.

[0011] Preferably, the thermal insulation and decorative layer includes a thermal insulation pad, a crack-resistant mortar layer, and a decorative panel, which are arranged sequentially from the inside to the outside.

[0012] Preferably, the crack-resistant mortar layer is provided with an alkali-resistant mesh cloth inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model forms a double waterproof barrier by setting up a flexible waterproof layer and a rigid waterproof layer, which greatly reduces the penetration of rainwater. At the same time, the drainage components set in the rigid waterproof layer, using the semi-circular horizontal water guide channels arranged vertically at intervals, water-proof plates, and vertical downpipes distributed longitudinally at intervals and passing through the water guide channels, can quickly drain the water that has been infiltrated, avoid water accumulation inside the wall, significantly reduce the risk of steel corrosion and concrete deterioration caused by dampness, ensure the durability and stability of the building exterior wall, and greatly extend the overall service life of the building.

[0015] (2) This utility model ensures the flatness of the base layer by setting a mortar leveling layer, reducing the risk of hollowing of the waterproof layer. The nano-silica hydrophobic coating enhances the hydrophobic performance, and the flexible waterproof layer of polyurethane can effectively prevent water penetration and greatly improve the reliability of waterproofing.

[0016] (3) The utility model, through the thermal insulation and decorative layer including thermal insulation pad, crack-resistant mortar layer and decorative panel, can effectively prevent heat transfer, improve the thermal insulation performance of the building, provide a comfortable temperature environment for the interior, and further enhance the crack resistance by setting alkali-resistant mesh cloth inside the crack-resistant mortar layer, thus increasing its practicality. Attached Figure Description

[0017] Figure 1 This is an internal schematic diagram of a water-blocking structure for an exterior wall of a building according to the present invention;

[0018] Figure 2 This is a schematic diagram of the drainage component of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the flexible waterproof layer of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the thermal insulation decorative layer of this utility model.

[0021] In the diagram: 1. Wall; 2. Mortar leveling layer; 3. Flexible waterproof layer; 301. Polyurethane waterproof layer; 302. Non-woven fabric reinforcement layer; 4. Rigid waterproof layer; 5. Flame retardant layer; 6. Thermal insulation and decorative layer; 601. Thermal insulation pad; 602. Crack-resistant mortar layer; 603. Decorative panel; 7. Steel mesh; 8. Drainage components; 801. Horizontal water guide channel; 802. Waterproofing plate; 803. Vertical downpipe; 804. Drainage pipe; 9. Elastic rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a water-blocking structure for building exterior walls, including a wall 1. An exterior wall structure is provided on one side of the wall 1. The exterior wall structure includes a flexible waterproof layer 3, a rigid waterproof layer 4, a flame-retardant layer 5, and a thermal insulation and decorative layer 6. A drainage assembly 8 is provided inside the rigid waterproof layer 4. The drainage assembly 8 includes a horizontal water guide channel 801, a water-blocking plate 802, a vertical downpipe 803, and a drain pipe 804. Multiple horizontal water guide channels 801, water-blocking plates 802, and vertical downpipes 803 are provided. The horizontal water guide channel 801 is a semi-circular channel. Multiple horizontal water guide channels 801... 01 Vertically spaced, the water-blocking plate 802 is fixedly installed at the rear end between two adjacent horizontal water guide channels 801, and multiple vertical downpipes 803 are arranged longitudinally at intervals. The vertical downpipes 803 pass through the horizontal water guide channels 801. Several micro-holes are provided on the outer end face of the vertical downpipes 803 to allow water in the horizontal water guide channels 801 to flow stably into the vertical downpipes 803. The drain pipe 804 is set below the vertical downpipes 803 and is connected to the vertical downpipes 803. The drain pipe 804 extends into the outside of the outer wall structure to facilitate water discharge.

[0024] By utilizing the vertically spaced semi-circular horizontal water guide channels 801, water-blocking plates 802, and vertically spaced vertical downpipes 803 that run through the horizontal water guide channels, water can be blocked and drained. This ensures that water flows steadily in and is discharged outside the wall through the drainage pipe 804 connected at the bottom, forming a complete water flow guidance structure. This structure can not only quickly drain the water that has seeped in and prevent water from accumulating inside the wall, but also effectively prevent rainwater from eroding the internal structure of the wall over a long period of time. This significantly reduces the risk of steel corrosion and concrete deterioration caused by dampness, ensuring the durability and stability of the building's exterior walls, greatly extending the overall service life of the building, and increasing its practicality.

[0025] Please see Figure 1 The flexible waterproof layer 3, rigid waterproof layer 4, flame retardant layer 5 and thermal insulation and decorative layer 6 are set from the inside to the outside. A mortar leveling layer 2 is set between the wall 1 and the flexible waterproof layer 3. The side of the mortar leveling layer 2 facing the flexible waterproof layer 3 is coated with nano-silica hydrophobic coating.

[0026] The mortar leveling layer 2 makes the wall surface smoother, providing a good foundation for the subsequent waterproofing layer. It avoids weak points in the waterproofing layer due to uneven wall surface and enhances the overall adhesion of the waterproofing layer. The nano silica hydrophobic coating has excellent hydrophobic properties and forms a hydrophobic film on the surface of the mortar leveling layer, further reducing the penetration of rainwater into the interior of the wall.

[0027] Please see Figure 3 The flexible waterproof layer 3 includes a polyurethane waterproof layer 301 and a non-woven fabric reinforcement layer 302, with the polyurethane waterproof layer 301 disposed on the inner side of the non-woven fabric reinforcement layer 302.

[0028] The polyurethane waterproof layer 301 has good waterproof performance, elasticity and adhesion, which can effectively prevent water penetration and adapt to minor deformation of the wall without cracking, ensuring the durability of the waterproof effect. The non-woven fabric reinforcement layer 302 plays a reinforcing role, which can improve the overall strength and tear resistance of the flexible waterproof layer 3, prevent the polyurethane waterproof layer from being damaged when subjected to external forces, and provide reliable waterproof protection for the building's exterior walls.

[0029] Please see Figure 1 The rigid waterproof layer 4 is made of polymer cement mortar with added waterproofing agent, and a steel mesh 7 is provided inside the rigid waterproof layer 4 along one side of the drainage component 8.

[0030] Polymer cement mortar with added waterproofing agent has high strength and good waterproof performance, forming a solid waterproof barrier that effectively blocks rainwater penetration. Compared with ordinary cement mortar, it has better impermeability and durability, and can adapt to different environmental conditions. Setting steel mesh 7 inside the rigid waterproof layer can enhance the overall strength and crack resistance of the rigid waterproof layer.

[0031] Please see Figure 1 An elastic pad 9 is provided between the flame-retardant layer 5 and the thermal insulation and decorative layer 6.

[0032] Elastic pad 9 has good elasticity and cushioning properties, and it can play a role in buffering and isolating between the flame retardant layer and the thermal insulation decorative layer.

[0033] Please see Figure 4 The thermal insulation and decorative layer 6 includes a thermal insulation pad 601, a crack-resistant mortar layer 602, and a decorative panel 603. The thermal insulation pad 601, the crack-resistant mortar layer 602, and the decorative panel 603 are arranged sequentially from the inside to the outside. The crack-resistant mortar layer 602 is provided with an alkali-resistant mesh cloth inside.

[0034] The thermal insulation pad 601 can effectively prevent heat transfer, improve the building's thermal insulation performance, reduce energy consumption, and provide a comfortable indoor temperature environment. The crack-resistant mortar layer 602 has high strength and crack resistance. An alkali-resistant mesh is set inside the crack-resistant mortar layer, which can further enhance the crack resistance of the crack-resistant mortar layer, prevent the generation and expansion of cracks, and increase its practicality.

[0035] Working principle: When rainwater comes into contact with the building's exterior wall, the insulation and decorative layer 6 first blocks some of the water. Then, the water reaches the rigid waterproof layer 4 and the flexible waterproof layer 3, forming a rigid-flexible composite waterproof structure. The flexible layer adapts to structural deformation to prevent cracking, while the rigid layer provides a high-strength impermeable barrier. The drainage components 8 constitute the drainage structure. The infiltrated water is restricted in its flow range by the water-blocking plate 802 and flows into the semi-circular horizontal water guide channel 801. It then flows in through the micropores on the side wall of the vertical downpipe 803 and is finally discharged outside the wall through the drain pipe 804. The nano-silica hydrophobic coating of the mortar leveling layer 2 reduces water adsorption from the base layer, forming a three-dimensional protective network from the outside to the inside, achieving long-term waterproof protection for the building's exterior wall and increasing its practicality.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water-blocking structure for building exterior walls, comprising a wall (1), characterized in that: One side of the wall (1) is provided with an external wall structure, which includes a flexible waterproof layer (3), a rigid waterproof layer (4), a flame-retardant layer (5), and a thermal insulation and decorative layer (6). The rigid waterproof layer (4) is provided with a drainage assembly (8), which includes a horizontal water guide channel (801), a water-blocking plate (802), a vertical downpipe (803), and a drain pipe (804). The horizontal water guide channel (801), the water-blocking plate (802), and the vertical downpipe (803) are each provided with multiple The horizontal water guide channel (801) is configured as a semi-circular channel, and multiple horizontal water guide channels (801) are arranged vertically at intervals. The water baffle plate (802) is fixedly installed at the rear end between two adjacent horizontal water guide channels (801). Multiple vertical downpipes (803) are arranged longitudinally at intervals. The vertical downpipes (803) penetrate the horizontal water guide channel (801). The drain pipe (804) is located below the vertical downpipes (803) and is connected to the vertical downpipes (803).

2. The water-blocking structure for building exterior walls according to claim 1, characterized in that: The flexible waterproof layer (3), rigid waterproof layer (4), flame retardant layer (5) and thermal insulation decorative layer (6) are arranged from the inside to the outside. A mortar leveling layer (2) is provided between the wall (1) and the flexible waterproof layer (3). The mortar leveling layer (2) is coated with nano-silica hydrophobic coating on the side of the flexible waterproof layer (3).

3. The water-blocking structure for building exterior walls according to claim 1, characterized in that: The flexible waterproof layer (3) includes a polyurethane waterproof layer (301) and a non-woven fabric reinforcing layer (302), wherein the polyurethane waterproof layer (301) is disposed on the inner side of the non-woven fabric reinforcing layer (302).

4. The water-blocking structure for building exterior walls according to claim 1, characterized in that: The rigid waterproof layer (4) is made of polymer cement mortar with added waterproofing agent, and a steel mesh (7) is provided inside the rigid waterproof layer (4) along one side of the drainage component (8).

5. A water-blocking structure for building exterior walls according to claim 1, characterized in that: An elastic pad (9) is provided between the flame-retardant layer (5) and the thermal insulation and decorative layer (6).

6. A water-blocking structure for building exterior walls according to claim 5, characterized in that: The thermal insulation and decorative layer (6) includes a thermal insulation pad (601), a crack-resistant mortar layer (602), and a decorative panel (603), which are arranged sequentially from the inside to the outside.

7. A water-blocking structure for building exterior walls according to claim 6, characterized in that: The crack-resistant mortar layer (602) is internally provided with alkali-resistant mesh cloth.

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