A fascia panel connection assembly
The design of the U-shaped groove, waterproofing plate, and water guide channel in the fascia board connection components solves the leakage problem at the fascia board joints, enabling rapid drainage of rainwater, protecting the wall structure, and improving the building's aesthetics and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HUAJIE LANDSCAPE WOOD IND CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional methods of installing cornice panels cannot effectively prevent rainwater leakage at the joints, resulting in dripping water that affects the aesthetics and erodes the wall structure.
The U-shaped groove design of the snap-fit body, combined with the water-blocking plate, drainage hole and water guide channel, forms a systematic drainage channel. It uses gravity and water guide channel structure design to accelerate rainwater discharge and prevent leakage.
It effectively prevents rainwater from accumulating at joints or seeping down the wall, improves building sealing and durability, simplifies construction processes, and enhances installation efficiency and stability.
Smart Images
Figure CN224300303U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eaves board technology, specifically to an eaves board connecting component. Background Technology
[0002] The eaves board, also known as the gable board or bargeboard, refers to the wooden board nailed to the eaves or the outer side of the gable top. It protects the ends of the eaves and the gable board from rainwater and also enhances the aesthetics of the building.
[0003] However, traditional methods of installing fascia boards have significant drawbacks: they typically involve simply nailing the fascia boards directly to the wall structure. The core problem with this connection method is its inability to effectively handle rainwater leakage at the joints. When rainwater falls on the surface of the fascia boards, especially when flowing through the joints between adjacent boards, the rainwater easily seeps downwards along the joints. This not only leads to continuous, unsightly dripping below the joints, but over time, the continuous seepage may also erode the wall structure, damage the fascia boards themselves and the components below, and reduce the durability and sealing of the building envelope. To address this, we propose a fascia board connection component. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by proposing a cornice board connection assembly.
[0005] In order to solve the above-mentioned technical problems, the present invention solves the problem of water dripping at the joints of the eaves board in the prior art through the following technical solution.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A fascia board connection assembly includes: a snap-fit body with a downwardly recessed U-shaped groove at its top, the two side walls of the U-shaped groove forming snap-fit parts for clamping the side of the fascia board; a water guide groove on the bottom surface of the snap-fit body; a water-proof plate fixedly provided at the bottom of the U-shaped groove; a through drain hole provided at the junction of the water-proof plate and the side wall of the U-shaped groove; and the water guide groove located below the water-proof plate and communicating with the drain hole.
[0008] Preferably, the water guide groove extends along the length of the buckle body, its bottom is an inclined slope, and its end is provided with a drain outlet.
[0009] Preferably, the inner side of the snap-fit part is provided with an anti-detachment protrusion, and the cross-section of the anti-detachment protrusion is arc-shaped.
[0010] Preferably, the center line of the bottom of the U-shaped channel is the highest point, forming a downward slope towards the two side walls; the drainage hole is located at the lowest point at the root of the side wall of the U-shaped channel.
[0011] Preferably, symmetrically distributed guide plates are fixed inside the water guide channel, and the guide plates include horizontal plates, inclined plates and vertical plates;
[0012] The drainage holes are arrayed along the length of the baffle plate. The horizontal plate is located below the drainage holes and covers their projected positions. The higher side of the inclined plate is connected to the horizontal plate, and the lower side is connected to the vertical plate.
[0013] The bottom of the vertical plate is fixed to the bottom of the water guide channel.
[0014] Preferably, a gap is provided between the horizontal plate and the water-blocking plate to guide the water flow to form a liquid film; a channel for water flow is provided between the two vertical plates.
[0015] Preferably, the connection between the vertical plate and the bottom of the water guide channel is provided with an array of narrow slits.
[0016] Preferably, the narrow slit constrains the water flow that flows along the bottom of the guide channel.
[0017] Preferably, the angle between the inclined plate and the horizontal plate is an obtuse angle.
[0018] Preferably, the inner surface of the water guide channel is coated with a silicon dioxide coating.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] This invention utilizes a water-blocking plate at the bottom of a U-shaped groove, drainage holes, and a water-guiding channel below to form a systematic drainage channel. Rainwater seeps into the joint, is blocked by the water-blocking plate, and guided to the drainage holes, where it is quickly discharged through the water-guiding channel. This solves the problem of continuous dripping caused by joint leakage in the prior art, protects the aesthetics of the wall structure, and improves the building's airtightness.
[0021] The drainage system directs intruding rainwater away, preventing it from accumulating at joints or seeping down the wall. This effectively prevents rainwater from eroding the wall structure, damaging the fascia and underlying components, and improves the overall durability and reliability of the fascia system and building envelope.
[0022] The anti-detachment protrusions on the inside of the snap-fit section ensure that the fascia board is firmly locked in place and will not come loose; the inclined design of the water guide channel and the drainage outlet, combined with the guide plate structure and narrow slit design, effectively prevent the drainage channel from becoming blocked, ensuring smooth drainage in the long term. This reduces the maintenance requirements of traditional installations, simplifies the construction process, and improves installation efficiency and long-term stability. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the end structure of the water guide channel of this utility model;
[0026] Figure 3 This is a schematic diagram of the water-blocking plate part of this utility model;
[0027] Figure 4 This is a cross-sectional view of the internal structure of the water guide channel of this utility model;
[0028] Figure 5 This is a schematic diagram of the guide plate structure of this utility model;
[0029] Figure 6 This is a schematic diagram showing the distribution of the silica coating on the surface of the water guide channel of this utility model.
[0030] Drawing number descriptions: 1. Buckle body; 2. U-shaped groove; 3. Snap-fit part; 4. Water guide groove; 5. Water-blocking plate; 6. Drain hole; 7. Drain outlet; 8. Anti-detachment protrusion; 9. Guide plate; 10. Horizontal plate; 11. Inclined plate; 12. Vertical plate; 13. Narrow slit; 14. Silica coating. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings. Example
[0032] Please see Figures 1-6 A fascia board connection assembly includes: a snap-fit body 1, the top of which is provided with a downwardly recessed U-shaped groove 2, and the two side walls of the U-shaped groove 2 form snap-fit parts 3 for clamping the side of the fascia board, thereby realizing the mechanical clamping and fixing of the side of the fascia board; a water guide groove 4 is provided on the bottom surface of the snap-fit body 1; a water-proof plate 5 is fixedly provided at the bottom of the U-shaped groove 2, forming the first waterproof barrier to block rainwater seeping down at the joint; a through drain hole 6 is provided at the junction of the water-proof plate 5 and the side wall of the U-shaped groove 2 to direct the rainwater intercepted by the water-proof plate 5 to flow in a direction; the water guide groove 4 is located below the water-proof plate 5 and communicates with the drain hole 6, receiving and guiding the downward flow of water to form a complete "interception-drainage-discharge" waterproof channel.
[0033] The following describes some embodiments of this application in detail with reference to the accompanying drawings:
[0034] Please see Figures 1-6 This invention utilizes a water-blocking plate 5 at the bottom of the U-shaped groove 2, a drain hole 6, and a water-guiding channel 4 below to form a systematic drainage channel. Rainwater seeps into the joint, is blocked by the water-blocking plate 5, and guided to the drain hole 6, from where it is quickly discharged through the water-guiding channel 4. This solves the problem of continuous dripping caused by joint leakage in the prior art, protects the aesthetics of the wall structure, and improves the building's airtightness.
[0035] The water guide channel 4 extends along the length of the buckle body 1 to ensure that the drainage covers the entire joint area. Its bottom is an inclined slope, which uses gravitational potential energy to accelerate the directional flow of water. The end of the water guide channel 4 is provided with a drain outlet 7 to concentrate the collected water flow to the building drainage system and avoid local water accumulation.
[0036] In addition, the inner side of the snap-fit part 3 is provided with an anti-detachment protrusion 8. The cross section of the anti-detachment protrusion 8 is arc-shaped, which forms an elastic interlock with the side of the fascia board. The arc-shaped cross section reduces the installation resistance and provides radial locking force. At the same time, it can resist the displacement of the fascia board caused by wind vibration or thermal expansion and contraction, ensuring long-term stability.
[0037] In this technical solution, the center line of the bottom of the U-shaped channel 2 is the highest point, forming a downward slope towards the two side walls; the drainage hole 6 is located at the lowest point of the root of the side wall of the U-shaped channel 2, guiding rainwater to converge towards the root of the two side walls to avoid water accumulation in the channel; the collected rainwater is efficiently guided into the drainage hole 6 by gravity, thereby enhancing drainage efficiency.
[0038] In this technical solution, symmetrically distributed guide plates 9 are fixed inside the water guide channel 4. The guide plates 9 include a horizontal plate 10, an inclined plate 11, and a vertical plate 12. The drainage holes 6 are arrayed along the length of the waterproof plate 5 to achieve balanced drainage at multiple points, avoid system failure due to blockage of local drainage holes 6, improve adaptability to long joints or steep roof slopes, and ensure the reliability of waterproofing throughout the entire section. The horizontal plate 10 is located below the drainage holes 6 and covers their projected position to prevent water from splashing directly into the water guide channel 4. The higher side of the inclined plate 11 is connected to the horizontal plate 10, and the lower side is connected to the vertical plate 12, which converts the vertically falling water flow into an inclined flow direction. The bottom of the vertical plate 12 is fixed to the bottom of the water guide channel 4 to constrain the water flow path and reduce turbulence.
[0039] The horizontal plate 10 and the water-blocking plate 5 are provided with a gap so that the water flow forms a thin liquid film and seeps down evenly, avoiding air resistance caused by large flow impact; a channel for water flow is provided between the two vertical plates 12 to guide the water flow through in a concentrated manner, prevent overflow to both sides, and ensure smooth drainage.
[0040] In addition, an array of narrow slits 13 are provided at the connection between the vertical plate 12 and the bottom of the water guide channel 4. The narrow slits 13 constrain the water flow through them to flow along the bottom of the water guide channel 4. The slit effect increases the viscous resistance of the water flow, reduces the flow velocity, reduces the scouring and wear of the high-speed water flow on the drain outlet 7, extends the component life, and prevents the water flow from leaving the bottom of the channel to form turbulence or bubbles; maintains laminar flow, and improves drainage stability and predictability.
[0041] In this technical solution, the angle between the inclined plate 11 and the horizontal plate 10 is an obtuse angle, which expands the water flow turning angle and smoothly resolves the vertical impact force; at the same time, it can reduce kinetic energy loss and reduce drainage noise and structural vibration.
[0042] It is worth noting that the inner surface of the water guide channel 4 is coated with a silica coating 14 to reduce the flow resistance of the water.
[0043] The working principle of this device is as follows:
[0044] When rainwater seeps into the joints of adjacent eaves boards, it is first blocked laterally by the water-blocking plate 5 at the bottom of the U-shaped channel 2. Because the center line of the bottom of the U-shaped channel 2 is the highest point and forms a downward slope towards the side walls, the rainwater converges towards the base of the side walls under the action of gravity. The water that has gathered at the lowest point is discharged directionally through the array of drainage holes 6 at the junction of the water-blocking plate 5 and the side walls, realizing the first stage of "interception-gathering-discharge".
[0045] The water flowing vertically from the drain hole 6 impacts the surface of the horizontal plate 10 of the guide plate 9. Due to the pre-existing gap between the horizontal plate 10 and the baffle plate 5, the water forms a uniform thin film that seeps downwards, preventing air blockage. The film falls along the inclined plate 11, smoothly changing direction through the obtuse angle between the inclined plate 11 and the horizontal plate 10, thus mitigating the vertical impact. The water is then guided into the channel between the two vertical plates 12, concentrating its flow at the bottom of the guide tank 4 to prevent turbulent splashing or lateral overflow.
[0046] When the water flowing into the guide channel 4 comes into contact with the array of narrow slits 13 at the bottom of the vertical plate 12, it experiences viscous resistance due to the slit effect, resulting in a decrease in flow velocity. The narrow slits 13 forcibly constrain the water flow to adhere tightly to the bottom of the guide channel 4, maintaining a laminar flow state and preventing the formation of air bubbles by detaching from the channel wall. The water flow accelerates steadily along the inclined surface at the bottom of the guide channel 4 and is finally discharged from the end drain outlet 7 into the building drainage system, completely detaching from the joint area.
[0047] Throughout the process, the sides of the fascia board are firmly clamped by the snap-fit parts 3 on both sides of the U-shaped groove 2. The arc-shaped anti-detachment protrusions 8 on the inner side of the snap-fit parts 3 provide elastic locking force to resist wind vibration or thermal deformation displacement. At the same time, the water guide channel 4 acts as a physical barrier at the bottom, preventing water flow from contacting the wall structure and preventing erosion at the source.
[0048] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.
Claims
1. A cornice board connecting assembly, characterized in that, include: The buckle body (1) has a U-shaped groove (2) recessed downwards at its top, and the two side walls of the U-shaped groove (2) form a snap-fit part (3) for clamping the side of the fascia board. The bottom surface of the buckle body (1) is provided with a water guide groove (4); the bottom of the U-shaped groove (2) is fixedly provided with a water-proof plate (5); A through drain hole (6) is provided at the junction of the water-blocking plate (5) and the side wall of the U-shaped groove (2). The water guide channel (4) is located below the water baffle plate (5) and is connected to the drain hole (6).
2. The fascia board connection assembly according to claim 1, characterized in that: The water guide groove (4) extends along the length of the buckle body (1), with an inclined slope at the bottom and a drain outlet (7) at the end.
3. The fascia board connection assembly according to claim 1, characterized in that: The inner side of the snap-fit part (3) is provided with an anti-detachment protrusion (8), and the cross section of the anti-detachment protrusion (8) is arc-shaped.
4. The fascia board connection assembly according to claim 1, characterized in that: The center line of the bottom of the U-shaped groove (2) is the highest point, forming a downward slope towards the two side walls; the drain hole (6) is located at the lowest point of the root of the side wall of the U-shaped groove (2).
5. A cornice board connecting assembly according to claim 2, characterized in that: The water guide channel (4) is fixed with symmetrically distributed guide plates (9), the guide plates (9) including horizontal plates (10), inclined plates (11) and vertical plates (12). The drain holes (6) are arranged in an array along the length of the baffle plate (5). The horizontal plate (10) is located below the drain holes (6) and covers their projected positions. The inclined plate (11) is connected to the horizontal plate (10) on its higher side and to the vertical plate (12) on its lower side. The bottom of the vertical plate (12) is fixed to the bottom of the water guide channel (4).
6. The fascia board connecting assembly according to claim 5, characterized in that: A gap is provided between the horizontal plate (10) and the water-blocking plate (5) to guide the water flow to form a liquid film; a channel for water flow is provided between the two vertical plates (12).
7. A cornice board connecting assembly according to claim 6, characterized in that: The vertical plate (12) and the bottom of the water guide channel (4) are provided with an array of narrow slits (13).
8. A cornice board connecting assembly according to claim 7, characterized in that: The narrow slit (13) constrains the water flow through it to flow along the bottom of the water guide channel (4).
9. A cornice board connecting assembly according to claim 5, characterized in that: The angle between the inclined plate (11) and the horizontal plate (10) is an obtuse angle.
10. A cornice board connecting assembly according to claim 1, characterized in that: The inner surface of the water guide channel (4) is coated with a silicon dioxide coating (14).