Canopy cornice double-water-drip structure
By installing eagle-beak drip lines and groove drip lines on the sides and bottom of the structural beams at the eaves of the canopy, combined with the curved surface and drainage board, a double protection system is formed, which solves the problem that a single drip line cannot prevent rainwater from flowing to the wall in heavy rain, thus improving the waterproof effect and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY GUANGZHOU ENG GRP CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-22
AI Technical Summary
In existing technologies, a single drip line cannot effectively prevent rainwater from flowing from the vertical wall surface to the bottom wall surface during heavy rain, leading to erosion of the building.
Eagle beak drip lines and groove drip lines are installed on the sides and bottom of the structural beams at the eaves of the canopy to form a double protection system. The system is integrated with the structural beams through cast-in-place process, and the water flow path is optimized by combining the curved surface and drainage board.
It effectively prevents rainwater from flowing onto the wall, improves waterproofing, enhances structural stability and waterproofing reliability, reduces maintenance costs, and ensures that the building walls are not corroded.
Smart Images
Figure CN224266424U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of awning eaves technology, and in particular to a double drip line structure for awning eaves. Background Technology
[0002] In the construction industry, waterproofing is a crucial issue. Rainwater erosion of buildings can cause numerous problems, such as wall leaks, mold growth, and structural damage. As a vital part of the building's top edge, the eaves of awnings are highly susceptible to rainwater erosion. In traditional building structures, without effective drip edges, rainwater flows down the eaves to the vertical walls and then along the walls to the base, affecting not only the building's aesthetics but also reducing its lifespan and increasing maintenance costs due to long-term rainwater erosion. Therefore, to protect the building's structure and appearance and prevent rainwater penetration, drip lines are needed to guide rainwater away from the walls.
[0003] In the existing technology, in the field of building construction, a drip line is generally installed at the bottom of the eaves of the canopy.
[0004] Regarding the aforementioned technologies, the inventors believe that under normal rainfall conditions, a drip line can prevent water from flowing from the vertical wall to the side wall. However, in the event of heavy rain, some rainwater will still flow from the vertical wall to the side wall through a drip line, which cannot effectively prevent rainwater from flowing and thus allows rainwater to erode the building. Utility Model Content
[0005] The purpose of this application is to provide a double drip line structure for the eaves of a canopy to improve the problem that a single drip line cannot effectively stop water flow.
[0006] This application provides a double drip line structure for the eaves of a rain shelter, employing the following technical solution:
[0007] A double drip line structure for the eaves of a canopy includes a canopy panel and a canopy eaves structural beam disposed on the top surface of the canopy panel. A beak-shaped drip line is disposed on the side of the canopy eaves structural beam away from the canopy panel, and a grooved drip line is disposed on the bottom surface of the canopy eaves structural beam.
[0008] By adopting the above technical solution, a dual protection system is formed by installing the beak-shaped drip line and the grooved drip line on the side and bottom surfaces of the canopy eaves structural beam, respectively. The beak-shaped drip line effectively intercepts rainwater flowing down the side of the canopy eaves structural beam, preventing it from flowing towards the wall; the grooved drip line receives and guides rainwater from the bottom of the canopy eaves structural beam, ensuring that rainwater does not overflow onto the wall below, greatly improving the overall waterproof effect of the canopy eaves and protecting the building walls from rainwater erosion.
[0009] Optionally, the eagle-beak drip line and the groove drip line are integrally formed with the eaves structural beam of the canopy using a cast-in-place process.
[0010] By adopting the above technical solution, the drip line and groove drip line are integrated with the canopy eaves structural beam through cast-in-place construction, forming a unified structure. This avoids the risk of detachment due to weak connections, ensuring structural stability. Furthermore, it reduces gaps between components, preventing rainwater seepage and improving waterproofing reliability, while also lowering long-term maintenance costs.
[0011] Optionally, an arc-shaped surface is provided between the eagle-beak drip line and the groove drip line to guide the water flow smoothly and prevent water splashing.
[0012] By adopting the above technical solution, the curved surface can optimize the water flow path. When rainwater transitions from the beak drip line to the groove drip line, the curved surface can make the water flow smoothly, avoiding splashing caused by the water flow turning sharply. This not only ensures the orderly discharge of rainwater, but also prevents splashing water droplets from staining the wall surface, further maintaining the clean appearance of the building.
[0013] Optionally, the curvature of the arc surface is between 60° and 100°.
[0014] By adopting the above technical solution, the calculated arc range can best match the natural flow characteristics of water, minimize the resistance to water flow, allow water to flow smoothly along the optimal path, accelerate drainage speed, reduce the time rainwater stays at the eaves of the canopy, effectively reduce the pressure of rainwater on the structure, and reduce the impact of water flow on the wall.
[0015] Optionally, the length of the beak portion of the beak drip line is not less than 15mm, and the beak angle is between 60° and 90°.
[0016] By adopting the above technical solutions, the sufficient length and reasonable angle of the beak design give it a stronger interception capability. The longer beak can extend further, preventing rainwater from spreading along the beam side; the appropriate angle can guide rainwater to slide down in the best direction, ensuring that rainwater stays away from the wall, effectively protecting the wall surface from rainwater stains and improving the building's waterproofing effect.
[0017] Optionally, a drainage board is provided on the bottom surface of the canopy eaves structural beam on the side away from the drip line of the eagle beak.
[0018] By adopting the above technical solution, when the rainfall is too heavy, the flow rate of rainwater along the curved surface may be too fast, which may cause some rainwater to pass through the groove drainage line. By setting up drainage boards to block some of the rainwater passing through the groove drainage line, the drainage function of the canopy eaves structural beam is further enhanced, ensuring the dryness of the space under the building.
[0019] Optionally, the drainage plate is inclined and diagonally opposite to the water flow direction of the arc-shaped surface.
[0020] By adopting the above technical solution, the inclined and diagonally arranged drainage boards cause rainwater washed onto the drainage boards to move away from the wall, reducing the possibility of some rainwater dripping onto the wall and improving drainage quality.
[0021] Optionally, the top surface of the eaves structural beam of the canopy is provided with a drainage slope to assist rainwater in flowing away from the drip line.
[0022] By adopting the above technical solution, the drainage slope can guide rainwater on the top surface of the canopy eaves structural beam to flow to the roof panel, thereby reducing the water flow at the drip line and preventing rainwater from accumulating on the top of the canopy eaves structural beam and flowing to the drip line side, causing rainwater overflow. This ensures that rainwater flows in an orderly manner along the predetermined direction from the beginning, improving the drainage performance of the entire canopy eaves structural beam.
[0023] Optionally, a waterproof layer is provided on the outer wall of the canopy eaves structural beam.
[0024] By adopting the above technical solution, a waterproof layer is set up to prevent rainwater from penetrating into the interior of the canopy eaves structural beams, thus protecting the beam structure from rainwater erosion and extending the service life of the canopy eaves.
[0025] In summary, this application includes at least one of the following beneficial technical effects of the double drip line structure for canopy eaves:
[0026] 1. By installing the beak-shaped drip line and the grooved drip line on the side and bottom of the structural beam of the canopy eaves respectively, a double protection system is formed. The beak-shaped drip line can effectively intercept rainwater flowing down the side of the structural beam of the canopy eaves and prevent it from flowing to the wall. The grooved drip line receives and guides rainwater from the bottom of the structural beam of the canopy eaves, ensuring that rainwater does not overflow to the wall below, which greatly improves the overall waterproof effect of the canopy eaves and protects the building walls from rainwater erosion.
[0027] 2. By using the cast-in-place process, the drip line and the groove drip line are integrated with the eaves structural beam of the canopy into a whole structure. On the one hand, this avoids the risk of falling off due to poor connection in the later stage, ensuring the stability of the structure. On the other hand, it reduces the gaps between components, prevents rainwater from seeping in from the gaps, improves waterproof reliability, and also reduces long-term maintenance costs.
[0028] 3. When rainfall is excessive, the flow rate of rainwater along the curved surface may be too fast, which may cause some rainwater to pass through the groove drainage line. By installing drainage boards to block some of the rainwater passing through the groove drainage line, the drainage function of the canopy eaves structural beam is further enhanced, ensuring the dryness of the space under the building. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of the double drip line structure at the eaves of the canopy.
[0030] In the diagram, 1. Roof panel; 2. Awning eaves structural beam; 3. Beak drip line; 4. Groove drip line; 5. Curved surface; 6. Drainage board; 7. Drainage slope; 8. Waterproof layer; 9. Wall. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1 This application will be described in further detail below.
[0032] A double drip line structure for the eaves of a rain shelter, referring to Figure 1 It includes a roof panel 1 and a canopy eaves structural beam 2 set on the top surface of the roof panel 1. The roof panel 1 can be made of color steel plate or aluminum plate with good waterproof performance and strength; the canopy eaves structural beam 2 is made of reinforced concrete, and the cross-sectional dimensions are determined according to mechanical calculations.
[0033] Reference Figure 1 A drip line 3 with an eagle beak is provided on the side of the canopy eaves structural beam 2 away from the roof panel 1. The length of the eagle beak part of the drip line 3 is not less than 15mm, and the angle of the eagle beak is between 60° and 90°. A groove drip line 4 is provided on the bottom surface of the canopy eaves structural beam 2. An arc-shaped surface 5 is provided between the eagle beak drip line 3 and the groove drip line 4 to guide the smooth flow of water and prevent water splashing. The curvature of the arc-shaped surface 5 is between 60° and 100°. The eagle beak drip line 3 and the groove drip line 4 are integrally formed with the canopy eaves structural beam 2 using a cast-in-place process.
[0034] During the formwork erection process, a specially designed eagle-beak-shaped mold is fixed to the formwork on one side of the canopy eaves structural beam 2, and a groove-shaped mold is installed on the bottom formwork of the canopy eaves structural beam 2. The mold material can be plastic or metal, ensuring accurate dimensions and easy demolding, so that the subsequent concrete pouring can form the eagle-beak drip line 3 and the groove drip line 4. At the same time, it ensures that the concrete is dense, so that the eagle-beak drip line 3 and the groove drip line 4 are tightly bonded to the side of the beam, without defects such as air bubbles or voids. When installing the molds that form the eagle-beak drip line 3 and the groove drip line 4, an arc-shaped template is fixed in advance at the position of the formwork between the two. The arc-shaped template can be made of wood or plastic, with a smooth surface. The curvature of the arc-shaped template is based on the design requirements.
[0035] Reference Figure 1A drainage board 6 is installed on the bottom surface of the canopy eaves structural beam 2, on the side of the groove drip line 4 away from the eagle beak drip line 3. The drainage board 6 is inclined and diagonally opposite to the water flow direction of the curved surface 5. The drainage board 6 is made of stainless steel or galvanized steel plate with a thickness of 0.8-1.5mm and has good corrosion resistance. During installation, the drainage board 6 is fixed to the bottom surface of the canopy eaves structural beam 2 by riveting or welding to ensure a firm connection. The inclination angle of the drainage board 6 is achieved by setting shims on the bottom surface of the beam or adjusting the welding position. The inclination angle is diagonally opposite to the water flow direction, generally between 10° and 30°, to facilitate rapid drainage of rainwater.
[0036] Reference Figure 1 The top surface of the canopy eaves structural beam 2 is equipped with a drainage slope 7 to assist rainwater in flowing away from the drip line 3. During the pouring of the concrete for the top surface of the canopy eaves structural beam 2, drainage slope 7 is formed by setting support points at different heights on the formwork. The height difference of the support points is determined based on the length of the beam top surface and the designed drainage slope 7 degree, which is between 1% and 3%. Tools such as a laser level are used to monitor the flatness of the formwork to ensure that the drainage slope 7 is smooth and flat, guiding rainwater smoothly away from the drip line 3.
[0037] Reference Figure 1 A waterproof layer 8 is installed on the outer wall of the canopy eaves structural beam 2. The construction of the waterproof layer 8 is carried out after the concrete pouring of the canopy eaves structural beam 2 is completed. First, the beam surface is cleaned to remove dust, oil stains and other impurities. Then, a primer, such as a primer for polyurethane waterproof coating, is applied. After drying, a waterproof membrane, such as SBS waterproof membrane, is used. The membrane thickness is not less than 3mm. It is laid by hot-melt method, and the overlap width of the membrane is not less than 100mm to effectively prevent rainwater penetration.
[0038] The implementation principle of this application embodiment is as follows:
[0039] In actual use, rainwater falls onto the structural beam 2 of the canopy eaves. Some rainwater flows away from the drip line 3 along the drainage slope 7 and onto the roof panel 1. Some rainwater drips off after reaching the drip line 3. In heavy rain, some rainwater drips off the curved surface 5 through the drip line 3 or directly onto the curved surface 5. It then flows down the groove drip line 4 along the curved surface 5 and drips off. Some rainwater has a high flow velocity and impacts the drainage board 6 before dripping off. This effectively prevents rainwater from flowing onto the wall 9, thus protecting the building.
[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A double drip line structure for the eaves of a canopy, comprising a canopy panel (1) and a canopy eaves structural beam (2) disposed on the top surface of the canopy panel (1), characterized in that: The eaves structural beam (2) of the canopy is provided with a drip line (3) on the side away from the roof panel (1), and a groove drip line (4) is provided on the bottom surface of the eaves structural beam (2).
2. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: The eagle beak drip line (3) and the groove drip line (4) are integrally formed with the eaves structure beam (2) of the canopy using a cast-in-place process.
3. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: An arc-shaped surface (5) is provided between the eagle beak drip line (3) and the groove drip line (4) to guide the water flow smoothly and prevent water splashing.
4. The double drip line structure for the eaves of a rain shelter according to claim 3, characterized in that: The arc of the arc surface (5) is between 60° and 100°.
5. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: The length of the beak portion of the beak drip line (3) is not less than 15mm, and the beak angle is between 60° and 90°.
6. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: The bottom surface of the canopy eaves structural beam (2) is provided with a drainage board (6) on the side away from the eagle beak drip line (3) of the groove drip line (4).
7. The double drip line structure for the eaves of a rain shelter according to claim 6, characterized in that: The drainage board (6) is inclined and diagonally opposite to the water flow direction of the arc surface (5).
8. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: The top surface of the eaves structural beam (2) of the canopy is provided with a drainage slope (7) to assist the rainwater on it to flow away from the drip line (3).
9. The double drip line structure for the eaves of a rain shelter according to claim 1, characterized in that: The outer wall of the canopy eaves structural beam (2) is provided with a waterproof layer (8).