Novel roofing skylight for construction engineering
By introducing a stainless steel mesh cover and drainage protrusions into the roof drain, the problem of easy clogging of traditional roof drains is solved, achieving improved efficient drainage and waterproofing performance, and reducing cleaning difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING FANGSHAN NEW CITY INVESTMENT CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional roof gutters are easily blocked by leaves, branches and other debris in windy weather, which can quickly clog the drainage channels, affect the roof drainage effect, increase the roof load and accelerate the aging of the waterproof layer, and even cause leaks and damage to the building.
Design a roof drain structure that includes a waterstop, a stainless steel mesh cover, rubber flanges, and drainage protrusions. The stainless steel mesh cover filters debris, the drainage protrusions guide rainwater into the drainage pipe to prevent blockage, and the detachable or retractable mechanism simplifies installation and cleaning.
It effectively prevents drainage pipe blockage, reduces water accumulation, prevents leakage, improves drainage efficiency, reduces cleaning difficulty and cost, and ensures the stability and waterproof performance of the roof drainage system.
Smart Images
Figure CN224314489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a novel roof drain for building engineering. Background Technology
[0002] In the construction process, roof drains are a key component of the roof drainage system, and their performance directly affects the roof drainage effect and the building's waterproofing performance. Currently, many common roof drains on the market have numerous problems, among which clogging is particularly prominent.
[0003] Traditional roof drain filters have a relatively simple design, mostly consisting of flat mesh with fixed apertures, and lack effective anti-clogging measures. During windy weather, larger debris such as leaves and branches can easily fall into the drain joint, causing rapid blockage of the drainage channels. Since roof drains are usually installed high on the roof, workers need to constantly monitor for blockages. If cleaning is not timely or a serious blockage occurs, rainwater cannot drain properly, leading to water accumulation on the roof. This not only increases the roof load but also accelerates the aging and damage of the roof waterproofing layer, and in severe cases, causes rainwater leakage, damaging the building's interior finishes and facilities. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of roof drain for building engineering to solve the above-mentioned technical problems.
[0005] This utility model provides a novel roof drain for building engineering, including a water-stop section pre-embedded in the roof pouring layer. The lower end of the water-stop section is connected to a drainage pipe. A stainless steel mesh cover woven from stainless steel wire is installed inside the water-stop section. The top surface of the water-stop section is flush with the top surface of the roof pouring layer.
[0006] Furthermore, the outer wall of the waterstop joint is provided with a waterstop ring pre-embedded in the roof pouring layer.
[0007] Furthermore, a rubber flange is installed on the top outer wall of the waterstop joint, and the top surface of the rubber flange is flush with the top surface of the waterstop joint.
[0008] Furthermore, the rubber flange is made of EPDM rubber or silicone rubber.
[0009] Furthermore, the lower end of the water-stop joint is provided with an inverted frustum-shaped connector extending into the drainage pipe, and a sealing ring is installed on the outside of the connector.
[0010] Furthermore, the inner wall of the water-stop joint is provided with multiple flow-guiding protrusions, which extend spirally downward along the inner wall of the water-stop joint.
[0011] Furthermore, an annular limiting plate is installed inside the water-stop joint, and a flow guide port is opened in the middle of the limiting plate, and the mesh cover is placed on the limiting plate.
[0012] Furthermore, the inner wall of the waterstop is provided with a sliding groove, and the outer wall of the mesh cover is equipped with a slider that cooperates with the sliding groove.
[0013] Furthermore, the slide is an L-shaped slide, which consists of a vertically opened guide groove and a horizontally opened connecting groove. The guide groove is connected to the connecting groove, and the slider is slidably connected to the connecting groove.
[0014] Furthermore, the upper port of the guide groove has a larger opening size than the lower port opening size.
[0015] This invention uses a mesh cover installed inside the water-stop joint to filter out debris, preventing it from falling into the joint and clogging the drainage pipes, reducing water accumulation, and effectively preventing leakage and damage to the building's interior and exterior caused by water accumulation. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an internal structural diagram of Embodiment 1 of the present invention;
[0019] Figure 3 This is a structural diagram of the waterstop joint in Embodiment 1 of this utility model;
[0020] Figure 4 This is an internal structural diagram of Embodiment 2 of the present invention;
[0021] Figure 5 This is a structural diagram of the water-stop joint in Embodiment 2 of this utility model;
[0022] Figure 6 This is a front view of the mesh cover in Embodiment 3 of this utility model;
[0023] Figure 7 This is a diagram showing the internal structure of the sliding sleeve of this utility model;
[0024] Figure 8This is a front view of the unfolded mesh cover of Embodiment 3 of this utility model;
[0025] Figure 9 This is a top view of the unfolded mesh cover of Embodiment 3 of this utility model;
[0026] Explanation of reference numerals in the attached figures:
[0027] In the diagram: 1-Waterstop joint, 11-Waterstop ring, 12-Flange, 13-Connector, 14-Sealing ring, 15-Guide protrusion, 16-Limiting plate, 17-Slide groove, 2-Net cover, 21-Slider, 22-First ear plate, 3-Roof pouring layer, 4-Filter cage, 5-Central support column, 51-Guide groove, 52-Upper limit groove, 53-Lower limit groove, 6-Sliding kit, 61-Rotating sleeve, 62-Connecting sleeve, 63-Guide block, 64-Connecting rod, 65-Hinge rod, 66-Knob, 7-Drive side frame, 71-Second ear plate, 72-Driven side frame, 73-Elastic pull rope, 8-Handle; Detailed Implementation
[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Example 1
[0032] like Figure 1 , Figure 2 and Figure 3 As shown:
[0033] A new type of roof drain for building construction includes a water-stop section 1 pre-embedded in the roof pouring layer 3. The lower end of the water-stop section 1 is connected to a drainage pipe. A stainless steel mesh cover 2 woven from stainless steel wire is installed inside the water-stop section 1. The top surface of the water-stop section 1 is flush with the top surface of the roof pouring layer 3.
[0034] A rubber flange 12 is installed on the top outer wall of the waterstop joint 1, and the top surface of the rubber flange 12 is flush with the top surface of the waterstop joint 1. The rubber flange 12 is made of EPDM rubber or silicone rubber.
[0035] The outer wall of the water-stop section 1 is provided with a water-stop ring 11 pre-embedded in the roof pouring layer 3.
[0036] The lower end of the water-stop joint 1 is provided with an inverted frustoconical connector 13 extending into the drainage pipe, and a sealing ring 14 is installed on the outside of the connector 13.
[0037] Multiple guide protrusions 15 are provided on the inner wall of the water-stop joint 1, and the guide protrusions 15 extend spirally downward along the inner wall of the water-stop joint 1.
[0038] In this embodiment, an annular limiting plate 16 is installed inside the water-stop section 1. A flow guide port is opened in the middle of the limiting plate 16, and the mesh cover 2 is placed on the limiting plate 16.
[0039] A filter cage 4 is installed below the mesh cover 2. The filter cage 4 is also woven from stainless steel wire, and the gap between the stainless steel wires of the filter cage 4 is smaller than the gap between the stainless steel wires of the mesh cover 2.
[0040] In use, first install the rubber flange 12 on the top of the waterstop joint 1; then install the waterstop joint 1, insert the connector 13 at the bottom of the waterstop joint 1 into the drainage pipe, and seal the connector 13 and the drainage pipe with the sealing ring 14; then pour the concrete on the roof, and the top surface of the poured layer 3 is flush with the top surface of the waterstop joint 1 and the top surface of the rubber flange 12; finally, place the mesh cover 2 on the limiting plate 16 of the waterstop joint 1, and the filter cage 4 extends through the guide port in the middle of the limiting plate 16 to the bottom of the limiting plate 16.
[0041] By installing a mesh cover 2 inside the water-stop joint 1, a filtering function is achieved, preventing debris from falling into the water-stop joint 1 and causing blockage of the drainage pipe, reducing water accumulation, and effectively preventing leakage and damage to the interior and exterior of the building caused by water accumulation; by setting a filter cage 4, small debris entering the mesh cover 2 is filtered to prevent it from falling into the drainage pipe; by setting a guide protrusion 15, rainwater is guided to flow smoothly into the drainage pipe along the direction of the guide protrusion 15, avoiding the generation of eddies and improving drainage efficiency.
[0042] Example 2
[0043] like Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment 1 is that the waterstop 1 and the mesh cover 2 are detachably connected.
[0044] The inner wall of the waterstop joint 1 is provided with a sliding groove 17, and the outer wall of the mesh cover 2 is equipped with a slider 21 that cooperates with the sliding groove 17.
[0045] The slide 17 is an L-shaped slide 17, which consists of a vertically opened guide groove and a horizontally opened connecting groove. The guide groove and the connecting groove are connected, and the slider 21 is slidably connected to the connecting groove.
[0046] The upper port of the guide groove is larger than the lower port, and the two side walls of the guide groove are downward sloping surfaces.
[0047] During installation, rotate the mesh cover 2 so that the slider 21 at the bottom of the mesh cover 2 falls into the guide groove of the L-shaped sliding groove 17 on the inner wall of the water stop joint 1. The mesh cover 2 slides down by its own weight. At the same time, the inverted cone-shaped guide groove assists the slider 21 to quickly fall into the connecting groove. Then, rotate the mesh cover 2 horizontally to complete the connection.
[0048] By incorporating a sliding groove 17 with an inverted conical guide channel, the operation steps are simple and straightforward, requiring no complex tools or professional skills. Disassembly is performed in reverse, making it convenient and quick, significantly reducing the difficulty and time cost of installation and maintenance. Workers can quickly disassemble the mesh cover 2, efficiently complete the work, and then quickly reinstall it. The L-shaped sliding groove 17 restricts the movement of the mesh cover 2 from multiple directions, providing stronger tensile and torsional resistance. Even under complex external environments such as rain impact and wind force, the mesh cover 2 is not easily loosened or detached, ensuring the stability of the roof drainage system during long-term use.
[0049] Example 3
[0050] like Figures 6-9 As shown, the difference between this embodiment and embodiment 1 is that the mesh cover 2 is provided with an extendable and retractable outer edge mechanism.
[0051] In this embodiment, a vertical central support column 5 is installed on the top surface of the mesh cover 2, and a sliding sleeve 6 is slidably connected to the central support column 5. Multiple first ear plates 22 are evenly distributed in a ring on the outer peripheral surface of the mesh cover 2. A drive side frame 7 is hinged to the first ear plate 22 and connected to the sliding sleeve through a linkage mechanism.
[0052] A guide groove 51 is vertically provided on the outer wall of the central support column 5. The top of the guide groove 51 is connected to a horizontally provided upper limit groove 52, and the bottom of the guide groove 51 is connected to a horizontally provided lower limit groove 53.
[0053] like Figure 7 As shown, the sliding assembly 6 consists of an inner rotating sleeve 61 and an outer connecting sleeve 62 arranged coaxially. The rotating sleeve 61 and the connecting sleeve 62 are rotatably connected by a T-shaped slider 21 and a T-shaped groove, while restricting the axial and radial directions. The rotating sleeve 61 and the connecting sleeve 62 can rotate relative to each other. A knob 66 with an outer diameter larger than that of the connecting sleeve 62 is installed on the rotating sleeve 61, and the outer circumference of the knob 66 is treated with anti-slip treatment.
[0054] The inner wall of the rotating sleeve 61 is fitted with a guide block 63 that matches the guide groove 51. The guide block 63 extends into the guide groove 51 and slides up and down along the guide groove 51. When the sliding assembly 6 moves to the upper limit groove 52, the guide block 63 slides into the upper limit groove 52 by rotating the knob 66, and the sliding assembly 6 is temporarily locked in the position of the upper limit groove 52. When the sliding assembly 6 moves to the lower limit groove 53, the guide block 63 slides into the lower limit groove 53 by rotating the knob 66, and the sliding assembly 6 is temporarily locked in the position of the lower limit groove 53. The sliding assembly 6 can slide up and down by rotating the knob 66, allowing the guide block 63 to slide into the guide groove 51.
[0055] like Figure 6 and Figure 8As shown, the outer wall of the connecting sleeve 62 is provided with a connecting rod 64, and the outer end of the connecting rod 64 is hinged to a hinge rod 65. The end of the hinge rod 65 away from the connecting rod 64 is hinged to the drive side frame 7 through a second ear plate 71 installed on the drive side frame 7.
[0056] like Figure 9 As shown, in this embodiment, four drive-side frames 7 are evenly arranged, and three driven-side frames 72 are arranged between two adjacent drive-side frames 7. The driven-side frames 72 are also hinged to the mesh cover 2 through the first ear plate 22. Adjacent drive-side frames 7 and driven-side frames 72 or adjacent driven-side frames 72 are connected by elastic pull ropes 73. The elastic pull ropes 73 are made of highly elastic and weather-resistant rubber.
[0057] Waterproof cloth can also be installed between adjacent side frames, so that the unfolded mechanism presents a mesh-like structure, which can maximize the absorption of debris flowing towards the waterstop section 1.
[0058] In use, the operator rotates the knob 66 to slide the guide block 63 from the upper limit groove 52 into the guide groove 51, and then moves it down by holding the sliding sleeve. The connecting rod 64 and the hinge rod 65 move down accordingly. At the same time, the drive-side frame 7 rotates outward, and the driven-side frame 72 rotates outward under the action of the elastic pull rope 73. The drive-side frame 7 and the driven-side frame 72 are in an unfolded state. By rotating the knob 66, the rotating sleeve 61 is rotated, causing the guide block 63 to slide from the guide groove 51 into the lower limit groove 53, thus achieving unfolding and locking.
[0059] If the tension of the elastic rope 73 is large, the driven side frame 72 can be rotated to a horizontal state by pressing it with your hand or stepping on it when it rotates to half an angle.
[0060] By setting up an extended outer edge mechanism, debris flowing with rainwater to the waterstop section 1 can be received and collected. When the amount of rainwater is too large, the debris at the waterstop section 1 can be lifted and removed together by replacing the net cover 2. This eliminates the need for the traditional method of cleaning the waterstop section 1 separately, reducing cleaning time and workload, and enabling rapid cleaning of debris at the waterstop section 1. At the same time, it can also prevent debris at the waterstop section 1 from flowing into the drainage pipe with rainwater during the replacement of the net cover 2, ensuring the smooth flow of the drainage system.
[0061] In addition, barbs can be provided on the driving side frame 7 and the driven side frame 72 to further realize the reception and collection of debris.
[0062] When it needs to be retracted, the operator rotates knob 66 to slide guide block 63 from lower limit groove 53 into guide groove 51, and holds the sliding sleeve to move it upward. Connecting rod 64 and hinge rod 65 move upward accordingly. At the same time, drive side frame 7 rotates inward, and driven side frame 72 rotates inward under the action of elastic pull rope 73. Drive side frame 7 and driven side frame 72 are in a retracted state. Rotating knob 66 drives rotating sleeve 61 to rotate, so that guide block 63 slides from guide groove 51 into upper limit groove 52, realizing storage and locking.
[0063] In this embodiment, a handle 8 is provided at the top of the central support 5, allowing workers to lift and rotate the mesh cover 2 using the handle 8, ensuring ease of use.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A novel roof drain for building construction, characterized in that... It includes a waterstop joint pre-embedded in the roof pouring layer, the lower end of the waterstop joint being connected to a drainage pipe, a stainless steel mesh cover woven from stainless steel wire being installed inside the waterstop joint, and the top surface of the waterstop joint being flush with the top surface of the roof pouring layer.
2. The novel roof drain for building construction according to claim 1, characterized in that, The outer wall of the waterstop section is provided with a waterstop ring pre-embedded in the roof pouring layer.
3. The novel roof drain for building construction according to claim 1, characterized in that, A rubber flange is installed on the top outer wall of the waterstop joint, and the top surface of the rubber flange is flush with the top surface of the waterstop joint.
4. The novel roof drain for building construction according to claim 3, characterized in that, The rubber flange is made of EPDM rubber or silicone rubber.
5. The novel roof drain for building construction according to claim 1, characterized in that, The lower end of the water-stop joint is provided with an inverted frustum-shaped connector that extends into the drainage pipe, and a sealing ring is installed on the outside of the connector.
6. The novel roof drain for building construction according to claim 1, characterized in that, The inner wall of the water-stop joint is provided with multiple flow-guiding protrusions, which extend spirally downward along the inner wall of the water-stop joint.
7. The novel roof drain for building construction according to claim 1, characterized in that, An annular limiting plate is installed inside the water-stop section, and a flow guide port is opened in the middle of the limiting plate. The mesh cover is placed on the limiting plate.
8. The novel roof drain for building construction according to claim 1, characterized in that, The inner wall of the waterstop joint is provided with a sliding groove, and the outer wall of the mesh cover is equipped with a slider that cooperates with the sliding groove.
9. The novel roof drain for building construction according to claim 8, characterized in that, The slide is an L-shaped slide, which consists of a vertically opened guide groove and a horizontally opened connecting groove. The guide groove is connected to the connecting groove, and the slider is slidably connected to the connecting groove.
10. The novel roof drain for building construction according to claim 9, characterized in that, The upper port of the guide groove has a larger opening size than the lower port opening size.