A Chinese-style building eaves with an organized drainage system

CN224634211UActive Publication Date: 2026-08-14ZHEJIANG GAD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

但是该排水方式在中式建筑风格最为彰显的檐口部位,影响其形态

Benefits of technology

1. 美学与功能统一:通过“檐口装饰构件”和“装饰体”的设计,成功地将现代排水檐沟系统完全隐藏于传统中式檐口造型之内,从外观上完全看不到现代排水构件,保持了纯正的中式建筑风格,使建筑更典雅优美。

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an organized drainage system for the eaves of a Chinese-style building. It features a concrete structural beam with vertical supports, an inclined tile support surface, an eaves gutter on the front side of the beam, and an eaves decorative component fixed to the front side of the gutter. The inclined surface of the eaves decorative component is coplanar or parallel to the inclined tile support surface. Tiles are laid on the inclined tile support surface and the inclined surface of the eaves decorative component. Half-tiles are used in the tile laying area above the gutter, or drainage gaps are left by laying tiles at intervals. This system achieves a balance between aesthetics and function, robust and reliable structure, integrated thermal insulation and waterproofing, efficient and concealed drainage, and flexible implementation.
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Description

Technical Field

[0001] This utility model relates to the field of building roof construction, and in particular to an eaves structure suitable for Chinese-style buildings that combines traditional aesthetic effects with modern organized drainage functions. Background Technology

[0002] Chinese architectural style is widely used due to its unique artistic charm. Traditional buildings often use wooden structures to support tiled roofs for eaves, and drainage is mostly unorganized free-falling water. For example, ancient buildings often feature high ridges and steep slopes, with slopes exceeding 60° near the sides of the ridge, while the slope of the eaves is less than 30°. This steep slope allows rainwater to flow down rapidly, and inertia then propels the water over the eaves. The rainwater falls a considerable distance from the building's exterior walls, thus protecting the building.

[0003] Nowadays, most low-rise Chinese buildings adopt free drainage, as this method, while meeting basic drainage requirements, preserves the charm and integrity of the Chinese architectural style and roof form to the greatest extent. However, this method of allowing rainwater to drip freely from the eaves to the outdoor ground causes the building's exterior plinth to be frequently eroded by splashing rainwater. This not only reduces the structural integrity and durability of the exterior walls, but also causes inconvenience to pedestrians on the street due to the dripping rainwater.

[0004] A small number of low-rise Chinese-style buildings, recognizing the limitations of free drainage, have adopted organized drainage systems. These systems utilize drainage pipes for scientific and artificial drainage, ensuring the rational and effective discharge of rainwater and wastewater from both inside and outside the building. However, this drainage method negatively impacts the form of the eaves area, which is the most prominent feature of traditional Chinese architecture. The existing placement of downpipes has failed to properly balance function and aesthetics, thus affecting the overall appearance.

[0005] Currently, the organized drainage systems in low-rise Chinese-style buildings on the market are insufficient in their overall design considerations regarding the eaves. Exposed eaves gutters cause the overall proportions of the roof and the form of the eaves to lose their classical Chinese charm; the design is also disconnected from the Chinese architectural style; some downpipes are exposed, which is extremely unsightly; in addition, the prefabrication of finished eaves gutters requires high precision and installation skills, and if the joints are not tight, it may affect the drainage effect.

[0006] Chinese architecture features diverse eaves forms, including flat eaves, hipped roof eaves, and gable roof eaves, each with its own impact on drainage system design. Among all roof styles, the gable roof is considered the most conducive to drainage. The question arises: is there a unified and organized drainage system suitable for various roof types and locations, while preserving the proportions and aesthetics of traditional Chinese roofs?

[0007] Research has revealed that traditional Chinese-style building eaves drainage methods have significant limitations, and improper handling can greatly affect the overall proportions and form of the building. Therefore, there is an urgent need to develop a new eaves drainage technology and a gutter system that is compatible with traditional Chinese style. Summary of the Invention

[0008] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a Chinese-style building eaves with an organized drainage system. It can maintain the complete appearance of the Chinese building eaves and achieve the functions of concealed organized drainage, heat preservation and waterproofing required by modern buildings.

[0009] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: an organized drainage form of Chinese-style building eaves, characterized by including a concrete structural beam with a vertical support, the concrete structural beam having an inclined tile support surface, an eaves gutter provided on the front side of the concrete structural beam, an eaves decorative component fixed on the front side of the eaves gutter, the inclined surface of the eaves decorative component being coplanar or parallel to the inclined tile support surface; tiles are laid on the inclined tile support surface and the inclined surface of the eaves decorative component, wherein half tiles are laid corresponding to the tile laying area above the eaves gutter, or drainage gaps are left by laying tiles at intervals.

[0010] In the aforementioned organized drainage system of the eaves of a Chinese-style building, the top of the vertical support portion of the concrete structural beam protrudes upwards to form a retaining wall higher than the root of the inclined tile support surface. This retaining wall and the inclined tile support surface together constitute a laying area for accommodating insulation material.

[0011] In the aforementioned organized drainage system of a Chinese-style building eaves, a waterproof membrane is further provided at the corner where the top of the vertical support of the concrete structural beam connects to the eaves gutter.

[0012] In the aforementioned organized drainage system of the eaves of a Chinese-style building, the waterproof membrane is further positioned on the concrete structural beam by fixing plates.

[0013] In the aforementioned Chinese-style building eaves with an organized drainage system, decorative elements are further provided on the outer and lower surfaces of the eaves decorative components as well as under the eaves gutter.

[0014] In the aforementioned organized drainage system of Chinese-style building eaves, the eaves gutter and the concrete structural beam are integrally cast-in-place concrete structures.

[0015] In the aforementioned organized drainage system of Chinese-style building eaves, further, Chinese decorative components are wrapped around the outside and below the integrally cast-in-place concrete eaves gutter, concealing the drainage gutter and presenting a complete Chinese-style eaves gutter.

[0016] In the aforementioned organized drainage system of Chinese-style building eaves, the eaves gutter is further described as an independent prefabricated component, connected to the concrete structural beam by embedded parts or bolts.

[0017] In the aforementioned organized drainage system of Chinese-style building eaves, the downpipes that are matched with the eaves gutter are further concealed inside the dry-hanging stone or wrapped inside the decorative column.

[0018] In the eaves of a Chinese-style building with an organized drainage system, as mentioned above, a water-guiding strip is provided under the tile to fix the tile.

[0019] Organized drainage in buildings is divided into surface drainage and underground drainage. This technical solution is limited to the eaves drainage portion of surface drainage. Eaves drainage is a common building drainage system that guides rainwater from the eaves of the roof to sewers or other drainage facilities to ensure that the roof of the building does not accumulate water, while protecting the stability and service life of the building structure.

[0020] This design solves the basic drainage function without compromising the integrity of traditional Chinese architecture. From multiple perspectives, including human and bird's-eye views, the eaves gutter is perfectly concealed, achieving a pleasing facade effect.

[0021] This solution addresses specific problems with existing reinforced concrete eaves gutters, such as their inability to embody the "lively" and "vivid" emotional spirit of traditional Chinese architecture, the unsightly exposed finished eaves gutters, the risk of leaks due to inaccurate construction, and the reduced durability of exterior walls and disruption to pedestrian traffic caused by free-falling drainage.

[0022] This technical solution is a Chinese-style organized drainage eaves design. It achieves seamless integration of the drainage eaves with the roof through either cast-in-place reinforced concrete eaves gutter components encased in a corrosion-resistant outer layer, or by connecting the prefabricated eaves gutter to the reinforced concrete main structure using metal connectors, and then encasing the prefabricated eaves gutter in antique-style trusses. While ensuring the normal operation of the drainage system, it conceals the eaves gutter and downpipes, thereby optimizing the building facade. Ultimately, it preserves the graceful, light, and projecting form of traditional Chinese eaves.

[0023] Compared with the prior art, the beneficial effects of this utility model are: 1. Unity of Aesthetics and Function: Through the design of "eaves decorative components" and "decorative elements", the modern drainage gutter system is successfully hidden within the traditional Chinese eaves shape. The modern drainage components are not visible from the outside, maintaining the pure Chinese architectural style and making the building more elegant and beautiful.

[0024] 2. Robust structure and reliable performance: The core support system is made of cast-in-place concrete structural beams, resulting in high structural strength and excellent durability. Integral eaves gutters or reliably connected prefabricated eaves gutters ensure the stability and sealing of the drainage system.

[0025] 3. Integrated thermal insulation, heat insulation, and waterproofing: The continuous thermal insulation layer is cleverly constructed by utilizing the "sills" of the structural beams, avoiding cold bridging. Waterproof membrane is installed at key corners, forming an effective waterproof barrier.

[0026] 4. Efficient and concealed drainage: The tiles above the eaves gutter form water inlets by leaving gaps or using half-tiles. Rainwater is quickly drained away through the concealed eaves gutter and downpipes hidden in the dry-hanging stone or decorative columns, achieving efficient and completely concealed organized drainage.

[0027] 5. Flexible implementation: It provides two eaves gutter implementation schemes: integral cast-in-place and prefabricated installation, as well as various ways of decorating and concealing downpipes, to adapt to different construction conditions and design requirements. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the application of the eaves of a Chinese-style building according to this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of an embodiment of the integrally cast-in-place eaves gutter of this utility model.

[0030] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at point M in the middle.

[0031] Figures 4 to 6 yes Figure 3 A schematic diagram of the local decomposition state structure of each component.

[0032] Figure 7 , Figure 8 This is a schematic diagram of the structure of an embodiment of the decorative body of this utility model.

[0033] In the diagram: 1-Concrete structural beam, 2-Eaves gutter, 3-Insulation material, 4-Water-guiding strip, 5-Tile, 6-Waterproof membrane, 7-Fixing plate, 8-Decorative support, 9-Eaves decorative component, 10-Decorative strip one, 11-Ceiling panel, 12-Decorative strip two, 13-Decorative strip three. Detailed Implementation

[0034] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0035] This embodiment describes a Chinese-style architectural eaves with an organized drainage system, such as... Figure 1As shown, two new types of organized drainage systems for eaves in Chinese-style buildings were designed, combining modern building systems with organized drainage systems.

[0036] Example 1: The eaves gutter 2 and the concrete structural beam 1 are integrally cast-in-place concrete structures, such as... Figure 3 As shown, its core load-bearing structure is a cast-in-place concrete structural beam 1. One side of the beam is a vertical support, and the other side is an inclined tile support surface. On the front side of the concrete structural beam 1, an eaves gutter 2 is integrally cast in place with the concrete structural beam 1.

[0037] At the top of the vertical section of the concrete structural beam 1, an upward protrusion forms a retaining wall. This retaining wall, together with the inclined tile support surface, constitutes a laying area, which is filled with insulation material 3 (such as extruded polystyrene board, rock wool, etc.) to form a continuous thermal insulation layer.

[0038] At the critical waterproofing junction—the corner where the concrete structural beam 1 connects to the eaves gutter 2—a waterproof membrane 6, such as an SBS modified bitumen membrane, is laid and securely fastened to the concrete base using metal fasteners 7. If a layer of insulation material 3 is laid, the metal fasteners 7 are also used to press the insulation material 3 into place and secure it to the concrete base in the same way.

[0039] On the front side of the eaves gutter 2, an eaves decorative component 9 is fixed by welding or bolting. This eaves decorative component 9 is usually made of metal, and its sloping surface is designed to be strictly coplanar with the inclined tile support surface of the concrete structural beam 1. On the inclined tile support surface and the sloping surface of the eaves decorative component 9, a drainage strip 4 is first laid, and then Chinese-style tiles 5 are hung. In the tile laying area directly above the eaves gutter 2, drainage gaps are left by laying half tiles or increasing the tile spacing, so that rainwater from the roof can flow smoothly into the eaves gutter 2.

[0040] Finally, prefabricated Chinese-style decorative components, such as GRC components and aluminum alloy imitation wood components, are installed on the exposed surface of the eaves decorative component 9, the bottom surface of the eaves gutter 2, and the outer surface. These decorative components completely enclose the concrete structure, eaves gutter, and other modern components, presenting a complete and authentic Chinese wooden eaves effect from the outside. Note: In this embodiment, the eaves decorative component 9 is also a Chinese-style decorative component, but it is named according to its special location.

[0041] Rainwater collected by the eaves gutter 2 is discharged through downpipes. The downpipes can be pre-installed inside the dry-hanging stone keel of the building facade, or designed inside the antique-style columns, thus achieving concealed drainage from the roof to the ground.

[0042] Example 2: The eaves gutter 2 is an independent prefabricated component, see [link / reference]. Figures 3 to 6Its core load-bearing structure is a cast-in-place concrete structural beam 1. One side of the beam is a vertical support, and the other side is an inclined tile support surface. On the front side of the concrete structural beam 1, a prefabricated eaves gutter 2 is connected to the concrete structural beam 1 by embedded parts or bolts. The prefabricated eaves gutter 2 is made of 2mm stainless steel.

[0043] At the top of the vertical section of the concrete structural beam 1, an upward protrusion forms a retaining wall. This retaining wall, together with the inclined tile support surface, constitutes a laying area, which is filled with insulation material 3 (such as extruded polystyrene board, rock wool, etc.) to form a continuous thermal insulation layer.

[0044] At the critical waterproofing node—the corner where the concrete structural beam 1 connects to the eaves gutter 2—a waterproof membrane 6, such as an SBS modified bitumen membrane, is laid and securely fastened to the eaves gutter 2 using metal fasteners 7.

[0045] On the front side of the eaves gutter 2, an eaves decorative component 9 is fixed by welding, bolts, or other connection methods. This eaves decorative component 9 is made of metal and has hot-dip galvanized angle steel on its inner side to ensure structural strength. The sloping surface of the eaves decorative component 9 is designed to be strictly coplanar with the inclined tile support surface of the concrete structural beam 1. On the inclined tile support surface and the sloping surface of the eaves decorative component 9, drainage strips 4 are first laid, and then Chinese-style tiles 5 are hung. In the tile laying area directly above the eaves gutter 2, drainage gaps are left by laying half-tiles or increasing the tile spacing, allowing rainwater from the roof to flow smoothly into the eaves gutter 2.

[0046] Finally, prefabricated Chinese-style decorative components are installed on the exposed surface of the eaves decorative component 9, the bottom surface of the eaves gutter 2, and the outer side surface. These decorative components are directly fixed by the decorative support 8 located below the eaves gutter 2 and the eaves decorative component 9. For example, the irregularly shaped decorative strip 10 extends forward from the angled format of the eaves decorative component 9, forming a fascia board. These are uniformly manufactured as profiles and installed using a snap-fit ​​structure. Figure 7 As shown. The ceiling panel 11 is also fixed to the decorative support 8 using profiles and a snap-fit ​​structure. Decorative strips 12 are then used on the facade and corners, and decorative strip 3 is installed on the front side of the ceiling panel 11, as shown. Figure 8 As shown, various decorative lines are flexibly designed and configured according to the architectural style. These decorative elements completely enclose the concrete structure, eaves, and other modern components, presenting a complete and authentic Chinese wooden eaves effect from the outside.

[0047] Rainwater collected by the eaves gutter 2 is discharged through downpipes. The downpipes can be pre-installed inside the dry-hanging stone keel of the building facade, or designed inside the antique-style columns, thus achieving concealed drainage from the roof to the ground.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A Chinese style building cornice in the form of an organized water drainage, characterized in that The structure includes a concrete structural beam (1) with a vertical support, the concrete structural beam having an inclined tile support surface, an eaves gutter (2) provided on the front side of the concrete structural beam, an eaves decorative component (9) fixed on the front side of the eaves gutter, the inclined surface of the eaves decorative component being coplanar or parallel to the inclined tile support surface; tiles (5) are laid on the inclined tile support surface and the inclined surface of the eaves decorative component, wherein half tiles are laid corresponding to the tile laying area above the eaves gutter, or drainage gaps are left by laying tiles at intervals.

2. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The top of the vertical support part of the concrete structural beam (1) protrudes upward to form a retaining wall higher than the root of the inclined tile support surface. The retaining wall and the inclined tile support surface together constitute a laying area for accommodating the insulation material (3).

3. A Chinese style building cornice in the form of an organized water drainage according to claim 1 or 2, characterized in that, Waterproof membrane (6) is laid at the corner where the top of the vertical support of the concrete structural beam (1) connects to the eaves gutter (2).

4. A Chinese style building cornice in the form of an organized water drainage according to claim 3, characterized in that, The waterproof membrane (6) is positioned on the concrete structural beam (1) by means of fixing plate (7).

5. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The eaves decorative component (9) has decorative elements on its outer and lower surfaces as well as on the underside of the eaves gutter (2).

6. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The eaves gutter (2) and the concrete structural beam (1) are integrally cast-in-place concrete structures.

7. The Chinese-style architectural eaves with an organized drainage system as described in claim 6, characterized in that, Chinese decorative components are packaged on the outside and below the integral cast-in-place concrete eaves gutter (2), concealing the drainage eaves gutter and presenting a complete Chinese eaves gutter.

8. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The eaves gutter (2) is an independent finished component, which is connected to the concrete structural beam (1) by embedded parts or bolts.

9. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The downpipes that are matched with the eaves gutter (2) are set inside the dry-hanging stone material and hidden, or the downpipes are wrapped inside the decorative column and concealed.

10. A Chinese style building cornice in the form of an organized water drainage according to claim 1, characterized in that, The tile (5) is provided with a water-guiding strip (4) for fixing the tile.