Hidden drainage sunshade
The concealed drainage system solves the problems of easy aging and clogging in traditional louvered awnings, achieving efficient and aesthetically pleasing drainage, reducing maintenance difficulty and cost, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional louvered awnings with exposed drainage designs are prone to aging and damage, and are easily clogged by dust and debris, affecting drainage efficiency and potentially causing leaks that can damage interior decorations.
The design incorporates a concealed drainage system with built-in cavity drainage channels, removable filters, and inclined baffles, combined with rotating components and water-guiding plates to ensure smooth rainwater drainage and prevent blockages.
It improves the aesthetics and drainage efficiency of the awning, reduces maintenance difficulty and cost, prevents leakage, extends service life, and enhances the user experience.
Smart Images

Figure CN224032037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sunshade technology, and more specifically, to a sunshade with concealed drainage. Background Technology
[0002] In the field of architectural shading, louvered awnings are a common shading facility widely used in balconies, terraces, windows, and other locations on various buildings. By adjusting the angle of the louvers, they effectively block direct sunlight, reduce indoor temperature, decrease air conditioning energy consumption, and create a comfortable indoor environment. However, traditional louvered awnings often use exposed drainage designs, with drainage channels or pipes exposed to the elements. Long-term exposure to wind and sun can easily lead to aging and damage. For example, plastic drainage channels can become brittle and crack after prolonged UV exposure, causing rainwater leakage. Furthermore, exposed drainage structures are easily clogged by dust, leaves, and debris. In windy seasons, leaves and dust can accumulate in the drainage channels, affecting drainage efficiency and causing water accumulation. This not only damages the awning but may also leak into the room, damaging interior decorations. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sunshade with a beautiful appearance and good drainage effect, which is a concealed drainage system.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a concealed drainage sunshade, comprising several support columns with built-in hollow drainage channels, several first crossbeams and several second crossbeams, several louvers evenly arranged in an area formed by two parallel first crossbeams, a rotating assembly between the two first crossbeams and the louvers, drainage pipes provided below both ends of the louvers, and the drainage pipes are detachably installed on the first crossbeams and extend to the drainage channels above the support columns at both ends, and several detachable filter elements are provided on the drainage pipes, the filter elements being rectangular hollow structures, the top of the shell and two symmetrical sides connected to the top being filter screen structures.
[0005] The present invention is further configured such that: the drainage channel of the support column is provided with intersecting and inclined baffles.
[0006] The present invention is further configured such that: the bottom of the drainage channel of the support column is a spherical structure, and the drainage outlet at the bottom of the support column is level with the bottom of the drainage channel.
[0007] The present invention is further configured such that the drainage pipe has a slope structure from the center to both ends.
[0008] The present invention is further configured such that: the rotating assembly includes rotating parts disposed at both ends of the louver and fixed on the crossbeam, connecting rods that are pulsatorically connected to each rotating part, and a handle rod for controlling the rotation of the connecting rods.
[0009] The present invention is further configured such that: the filter element is fixed in the drain pipe by bolts through the body of the structure without filter screen on one side, and a sealing gasket is provided at each connection.
[0010] The present invention is further configured such that: water guide plates are provided at both ends of the louvers, and the water guide plates are configured to prevent excessive splashing of rainwater when rainwater flows over, and to guide the rainwater into the drainage pipe.
[0011] The beneficial effects of this utility model are:
[0012] 1. The frame structure, consisting of support columns, a first crossbeam, and a second crossbeam, provides stable support for the sunshade. The support columns, with their built-in drainage channels, ensure drainage while also enhancing their structural strength. Several louvers are evenly distributed between the first crossbeams and connected by rotating components, allowing users to flexibly adjust the louver's tilt angle according to different light intensity and direction at different times, as well as their specific needs. The hollow drainage channels built into the support columns work closely with the drainage pipes below both ends of the louvers to create an efficient drainage path. Furthermore, the drainage pipes are installed on the first crossbeam, greatly facilitating subsequent maintenance. When common problems such as blockages or damage occur in the drainage pipes, maintenance personnel do not need to disassemble the entire sunshade structure extensively; they can easily remove the drainage pipes with simple operations, significantly saving maintenance time and labor costs. The detachable filter element installed on the drainage pipe adopts a rectangular hollow structure. Its top and two symmetrical sides connected to the top are filter screens, which can effectively intercept leaves, dust, debris and other objects carried by rainwater, effectively preventing drainage pipe blockage. Once the filter element is blocked by debris, users or maintenance personnel can quickly remove it for cleaning or directly replace it with a new filter element to ensure that the drainage system always remains unobstructed.
[0013] 2. The staggered and inclined baffles within the drainage channels of the support columns buffer the water flow by changing its direction, preventing excessive water velocity from impacting the drainage channels and outlets, thus ensuring the stable and efficient operation of the drainage system. The bottom of the drainage channels of the support columns is designed with a spherical structure, and the outlets are flush with the bottom, allowing impurities to be discharged with the rainwater, preventing accumulation and blockage of the outlets. This reduces the difficulty and workload of cleaning, improves the convenience of drainage system maintenance, and ensures that rainwater is discharged as completely as possible from the drainage channels, avoiding bacterial growth, odors, and even corrosion caused by residual water.
[0014] 3. The connecting rod is connected to each rotating component via a transmission mechanism, ensuring that all louvers rotate synchronously and maintain a consistent angle during adjustment by turning the handle. This results in a neater and more aesthetically pleasing appearance when adjusting the shading angle of the awning, while also guaranteeing uniform shading across the entire shading area. It prevents areas from experiencing excessive or insufficient shading, thus enhancing the user experience and practicality of the awning. The rotating components are fixed to the crossbeam and tightly connected to both ends of the louvers, providing stable support for the louver rotation. This reduces wobbling and wear during rotation, extending the lifespan of the louvers and rotating components.
[0015] 4. The drainage pipe features a sloping structure from the center to both ends, fully utilizing gravity to allow rainwater to flow quickly to both ends within the pipe, preventing water accumulation. The filter element is bolted to the drainage pipe through the body on the side without a filter screen, ensuring a secure connection that is not easily loosened under water flow. Sealing gaskets at the connection prevent rainwater leakage from the gaps between the filter element and the drainage pipe, ensuring the drainage system's airtightness and preventing leaks from affecting the normal use of the sunshade and the surrounding environment. The water-guiding plates at both ends of the louvers effectively prevent excessive rainwater splashing out, guiding rainwater precisely into the drainage pipe, ensuring the drainage system can fully collect rainwater and reducing the impact of rainwater on the area below the sunshade. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the connection structure between the support column and the first and second crossbeams;
[0018] Figure 3 This is a schematic diagram of the structure of the louvers and rotating assembly;
[0019] Figure 4 This is a schematic diagram of the internal structure of the support column;
[0020] Figure 5 This is a schematic diagram of a drainage pipe structure;
[0021] Figure 6 This is a schematic diagram of the filter element.
[0022] Figure 1-6 Reference numerals: 1. Support column; 2. First crossbeam; 3. Second crossbeam; 4. Louver; 5. Drainage channel; 6. Drainage pipe; 7. Filter element; 8. Water baffle; 9. Spherical structure; 10. Rotating element; 11. Handle rod; 12. Bolt; 13. Water guide plate. Detailed Implementation
[0023] Reference Figures 1 to 6 The embodiments of this utility model will be further described below.
[0024] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0025] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0026] Figures 1 to 6 The concealed drainage awning shown includes several support columns 1 with built-in hollow drainage channels 5, several first crossbeams 2, and several second crossbeams 3, providing stable support for the awning. The support columns 1 with built-in drainage channels 5 enhance their structural strength while ensuring drainage function. Several louvers 4 are evenly arranged in the area formed by two parallel first crossbeams 2. A rotating component is provided between the two first crossbeams 2 and the louvers 4, allowing users to flexibly adjust the tilt angle of the louvers 4 according to different light intensity and direction at different times and their actual needs. Drainage pipes 6 are provided below both ends of the louvers 4, and the drainage pipes 6 are detachably installed on the first crossbeams 2 and extend to the drainage channels 5 of the support columns 1 at both ends. The hollow drainage channels 5 built into the support columns 1 and the drainage pipes 6 below both ends of the louvers 4 closely cooperate to construct an efficient drainage path. Furthermore, the drainage pipe 6 is installed on the first crossbeam 2, which greatly facilitates subsequent maintenance. When common problems such as blockage or damage occur in the drainage pipe 6, maintenance personnel do not need to disassemble the entire structure of the sunshade on a large scale. They can easily remove the drainage pipe 6 with simple operations, which greatly saves maintenance time and labor costs. The drainage pipe 6 is equipped with several detachable filter elements 7. The filter element 7 is a rectangular hollow structure. The top of the shell and the two symmetrical sides connected to the top are filter screen structures, which can effectively intercept leaves, debris and other debris carried by rainwater. It can also collect the dust washed down by rainwater in the filter element 7, effectively preventing the drainage pipe 6 from being blocked. Once the filter element 7 is blocked by debris, the user or maintenance personnel can quickly remove it for cleaning or directly replace it with a new filter element 7 to ensure that the drainage system always remains unobstructed.
[0027] The drainage channel 5 of the support column 1 is equipped with intersecting and inclined baffles 8, which buffer the water flow by changing the direction of the water flow, preventing the water flow speed from being too fast and impacting the drainage channel 5 and the drain outlet, thereby ensuring the stable and efficient operation of the drainage system.
[0028] The bottom of the drainage channel 5 of the support column 1 is a spherical structure 9, and the drainage outlet at the bottom of the support column 1 is flush with the bottom of the drainage channel 5. This allows impurities to be discharged with the rainwater, making it less likely for them to accumulate and cause blockage of the drainage outlet. This reduces the difficulty and workload of cleaning, improves the maintenance convenience of the drainage system, and ensures that the rainwater in the drainage channel 5 is discharged as completely as possible, avoiding bacterial growth, odor, or even corrosion of the drainage channel 5 caused by water residue.
[0029] The drainage pipe 6 has a sloping structure from the center to both ends, which can make full use of gravity to make rainwater flow quickly to both ends in the drainage pipe 6 and avoid water accumulation.
[0030] The rotating assembly includes rotating parts 10 disposed at both ends of the louvers 4 and fixed to the crossbeam, connecting rods that are pulsatically connected to each rotating part 10, and a handle 11 that controls the rotation of the connecting rods. This ensures that all louvers 4 rotate synchronously during adjustment by rotating the handle 11, maintaining a consistent angle. This makes the awning look neater and more aesthetically pleasing when adjusting the shading angle, while also ensuring uniform shading effect across the entire shading area, preventing over-shading or under-shading in some areas. This enhances the user experience and practicality of the awning. The rotating parts 10 are fixed to the crossbeam and tightly connected to both ends of the louvers 4, providing stable support for the rotation of the louvers 4, reducing swaying and wear during rotation, and extending the service life of the louvers 4 and the rotating assembly.
[0031] The filter element 7 is fixed inside the drainage pipe 6 by bolts 12 through the body on the side without a filter screen. The connection is firm and not easy to loosen under the impact of water flow. The connection is equipped with sealing gaskets to prevent rainwater from seeping from the gap between the filter element 7 and the drainage pipe 6, ensuring the sealing of the drainage system and avoiding the normal use of the sunshade and the surrounding environment due to water leakage.
[0032] The louvers 4 are equipped with water-guiding plates 13 at both ends, which effectively prevent excessive splashing of rainwater when it falls, and guide the rainwater to flow precisely into the drainage pipe 6, ensuring that the drainage system can fully collect rainwater and reduce the impact of rainwater on the area below the sunshade.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A concealed drainage awning, comprising several support columns (1) with built-in hollow drainage channels (5), several first crossbeams (2), and several second crossbeams (3), characterized in that, Several louvers (4) are evenly arranged in the area formed by the two first crossbeams (2) arranged in parallel. A rotating component is provided between the two first crossbeams (2) and the louvers (4). Drainage pipes (6) are provided below both ends of the louvers (4). The drainage pipes (6) are detachably installed on the first crossbeams (2) and extend to the drainage channel (5) of the support column (1) at both ends. Several detachable filter elements (7) are provided on the drainage pipes (6). The filter elements (7) are rectangular hollow structures. The top of the filter element (7) and two symmetrical sides connected to the top are filter screen structures.
2. The concealed drainage awning according to claim 1, characterized in that, The drainage channel (5) of the support column (1) is provided with intersecting and inclined baffles (8).
3. The concealed drainage awning according to claim 1, characterized in that, The bottom of the drainage channel (5) of the support column (1) is a spherical structure (9), and the drainage outlet at the bottom of the support column (1) is level with the bottom of the drainage channel (5).
4. A concealed drainage awning according to claim 1, characterized in that, The drainage pipe (6) has a slope structure from the center to both ends.
5. A concealed drainage awning according to claim 1, characterized in that, The rotating assembly includes rotating parts (10) disposed at both ends of the louver (4) and fixed on the crossbeam, connecting rods that are pulsatorically connected to each rotating part (10), and a handle rod (11) for controlling the rotation of the connecting rods.
6. A concealed drainage awning according to claim 1, characterized in that, The filter element (7) is fixed inside the drain pipe (6) by bolts (12) through the body on the side without a filter screen, and a sealing gasket is provided at each connection.
7. A concealed drainage awning according to claim 1, characterized in that, The louvers (4) are provided with water-guiding plates (13) at both ends. The water-guiding plates (13) are configured to prevent excessive splashing of rainwater when it flows over and to guide the rainwater into the drainage pipe (6).