Spiral flow guide type HDPE siphon drainage plastic pipe

Abstract

This utility model relates to the field of drainage pipe technology, and more particularly to a spiral-guided HDPE siphon drainage plastic pipe. The technical solution includes a funnel, a drainage pipe, a rotating shaft, and a filter cover. A funnel is located at the upper end of the drainage pipe, and a rotating shaft is located inside the funnel. A conical cylinder is fitted onto the outer wall of the rotating shaft, and an impeller is fitted onto the outer wall of the conical cylinder. A filter cover is located at the upper end of the funnel, and a filter cover is also located at the upper end of the filter cover. Spiral blades arranged in a 60° spiral shape are located on the inner wall of the funnel. A cleaning rod is fitted onto the outer wall of the upper end of the rotating shaft, and a brush is located at the lower end of the cleaning rod. This utility model utilizes the spiral blades on the inner wall of the funnel and the impact of falling water on the rotating impeller to generate suction force, assisting in the guidance and discharge of rainwater. This avoids blockage at the funnel and prevents rainwater from being obstructed by external pressure. It also avoids the water flow being constantly affected by top pressure, resulting in extremely slow flow velocity and affecting drainage, and prevents water flow from directly impacting the pipe, thus reducing noise.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, and in particular to a spiral flow guiding HDPE siphon drainage plastic pipe. Background Technology

[0002] In siphon systems, metal was initially used for drainage pipes. With technological advancements, various new materials have emerged. Among all drainage pipe materials, HDPE stands out for its lightweight, strength, and corrosion resistance, gradually replacing other drainage pipe materials and becoming widely used in various siphon drainage systems.

[0003] Rainwater flows out through the drain pipe by gravity. When the water volume is large enough, due to the pressure of gravity, a large pressure will be generated at the inlet of the drain pipe. The water cannot fall down and can only fall into the pipe with a large amount of air. The air bubbles carrying the water flow will strongly rub against the pipe wall, resulting in a loud noise. At the same time, because the water flow is constantly affected by the pressure at the top, the flow rate is extremely slow, which affects drainage. To solve this problem, we propose a spiral flow guiding HDPE siphon drainage plastic pipe. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a spiral flow-guiding HDPE siphon drainage plastic pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spiral flow-guiding HDPE siphon drainage plastic pipe, comprising a funnel, a drain pipe, a rotating shaft, and a filter cover. The upper end of the drain pipe is provided with a funnel, the inside of the funnel is provided with a rotating shaft, the outer wall of the rotating shaft is fitted with a cone, the outer wall of the cone is fitted with an impeller, the upper end of the funnel is provided with a filter cover, the upper end of the filter cover is provided with a filter cover, and the inner wall of the funnel is provided with spiral blades arranged in a 60° spiral shape and in a ring array.

[0006] Preferably, the funnel has an annular seat inside, and the lower end of the cone has an annularly distributed groove. The upper end of the annular seat has a ring of balls arranged in a circular array and rolling within the groove. The balls roll within the groove, providing rolling support to the annular seat.

[0007] Preferably, the lower end of the ring seat is provided with support rods arranged in a circular array and connected to the inner wall of the funnel at the lower end. The support rods support the lower end of the ring seat, so that the ring seat is suspended inside the lower end of the funnel.

[0008] Preferably, a cleaning rod is sleeved on the upper outer wall of the rotating shaft, and the lower end of the cleaning rod is provided with brushes that are evenly distributed and fit against the outer wall of the filter cover. When the cleaning rod rotates, it drives the brushes to rotate and scrape the outer wall of the filter cover.

[0009] Preferably, a bearing is embedded inside the upper end of the filter cover, and the upper end of the rotating shaft is rotatably mounted inside the bearing. The rotating shaft can effectively rotate inside the filter cover via the bearing.

[0010] Preferably, a support plate is provided on the outer wall of the rotating shaft, a fixed rod connected to the funnel is provided on the inner wall of the filter cover, a rotating plate is provided on the outer side of the support plate, and scrapers are provided on the outer wall of the rotating plate at equal intervals and in contact with the inner wall of the filter cover. A spring is provided between the rotating plate and the support plate. During use, the support plate supports the ring seat, the fixed rod supports the inner wall of the filter screen, and the scrapers are elastically supported by the spring, squeezing the inner wall of the filter cover, thereby expanding the gaps in the filter cover and helping to remove blockages inside the filter cover when the brush scrapes.

[0011] Preferably, a sliding sleeve is embedded inside the support plate, and a guide rod is provided at the lower end of the rotating plate, which is slidably installed inside the sliding sleeve and inserted into the spring. During the extension and retraction of the spring, the guide rod slides inside the sliding sleeve to guide the spring and prevent it from deviating outward.

[0012] Preferably, an installation ring is fitted onto the outer wall of the funnel, and geotextile is provided inside the lower end of the installation ring. The installation ring is thermally bonded to the building substrate by the geotextile, and the installation ring needs to be lower than the surrounding foundation surface. Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model features a funnel embedded in a building structure. Rainwater flows downwards through the funnel, with an enlarged opening at the top to facilitate its downward flow. Simultaneously, the descending rainwater impacts an impeller, generating suction as it rotates. This causes the rainwater to descend in a spiral pattern within the funnel, forming a vortex. The gravity-driven impeller rotation and suction force of the rainwater prevent the flow from being constantly affected by pressure from above, thus avoiding extremely slow flow rates and drainage issues. This siphon-spiral drainage system achieves efficient drainage, while the spiral flow of rainwater avoids direct impact on the pipe walls, reducing noise. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a top sectional three-dimensional structural diagram of the filter cover of this utility model; Figure 3 This is a schematic diagram of the main sectional three-dimensional structure of this utility model; Figure 4 This is a top-view three-dimensional structural diagram of the funnel of this utility model; Figure 5 This is a front-view three-dimensional structural diagram of the rotating plate of this utility model.

[0014] Reference numerals: 1. Funnel; 2. Drain pipe; 3. Mounting ring; 4. Filter cover; 5. Rotating shaft; 6. Cleaning rod; 7. Brush; 8. Cone; 9. Impeller; 10. Ring seat; 11. Support rod; 12. Groove; 13. Ball bearing; 14. Fixing rod; 15. Geotextile; 16. Spiral blade; 17. Rotating plate; 18. Scraper; 19. Guide rod; 20. Support plate; 21. Sliding sleeve; 22. Spring; 23. Bearing. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-5 As shown, the present invention proposes a spiral flow guiding HDPE siphon drainage plastic pipe, including a funnel 1, a drain pipe 2, a rotating shaft 5 and a filter cover 4. The upper end of the drain pipe 2 is provided with a funnel 1, the inside of the funnel 1 is provided with a rotating shaft 5, the outer wall of the rotating shaft 5 is sleeved with a cone 8, the outer wall of the cone 8 is sleeved with an impeller 9, the upper end of the funnel 1 is provided with a filter cover 4, the upper end of the filter cover 4 is provided with a filter cover 4, and the inner wall of the funnel 1 is provided with spiral blades 16 arranged in a 60° spiral shape and in a ring array. The funnel 1 is provided with an annular seat 10, and the lower end of the cone 8 is provided with an annularly distributed roller groove 12. The upper end of the annular seat 10 is rotatably mounted with a ring array of balls 13 that are rolled inside the roller groove 12. The lower end of the ring seat 10 is provided with support rods 11 arranged in a ring array and connected to the inner wall of the funnel 1 at the lower end; A cleaning rod 6 is sleeved on the upper outer wall of the rotating shaft 5, and brushes 7 are evenly distributed and attached to the outer wall of the filter cover 4 at the lower end of the cleaning rod 6. A bearing 23 is embedded inside the upper end of the filter cover 4, and the upper end of the rotating shaft 5 is rotatably installed inside the bearing 23. A support plate 20 is provided on the outer wall of the rotating shaft 5, a fixing rod 14 connected to the funnel 1 is provided on the inner wall of the filter cover 4, a rotating plate 17 is provided on the outer side of the support plate 20, scrapers 18 are provided on the outer wall of the rotating plate 17 at equal intervals and attached to the inner wall of the filter cover 4, and a spring 22 is provided between the rotating plate 17 and the support plate 20. A sliding sleeve 21 is embedded inside the support plate 20, and a guide rod 19 is provided at the lower end of the rotating plate 17, which is slidably installed inside the sliding sleeve 21 and inserted into the spring 22. The funnel 1 is fitted with an installation ring 3 on its outer wall, and geotextile 15 is installed inside the lower end of the installation ring 3.

[0017] Based on the implementation steps of Example 1: First, clean the reserved holes for the roof drainage outlets. Embed the funnel 1 part of the new drainage pipe 2 into the holes, ensuring that the mounting ring 3 on the outer wall of the funnel 1 is tightly fitted to the roof base. The geotextile 15 at the lower end of the mounting ring 3 is bonded to the roof waterproof membrane through a hot-melt process. The top surface of the mounting ring 3 is 5mm lower than the roof foundation surface to prevent rainwater from seeping into the roof along the edge of the mounting ring 3. Check the internal structure of the funnel 1 to confirm that the ring seat 10 is firmly connected to the inner wall of the funnel 1 through the support rods 11 distributed in a ring array. The balls 13 in the groove 12 at the lower end of the cone 8 are all The rotating shaft 5 is evenly distributed and rolls smoothly. It can rotate flexibly. The fixing rod 14 on the inner wall of the filter cover 4 is reliably connected to the edge of the funnel 1. The upper end of the rotating shaft 5 passes through the bearing 23 hole of the filter cover 4, so that the brush 7 at the lower end of the cleaning rod 6 on the outer wall of the rotating shaft 5 is in close contact with the outer wall of the filter cover 4. The scraper 18 on the rotating plate 17 is in close contact with the inner wall of the filter cover 4 under the action of the spring 22. The guide rod 19 slides smoothly inside the sliding sleeve 21. The lower end of the drain pipe 2 is connected to the main drain riser of the roof through heat fusion. The joint is heated by a special HDPE heat fusion machine to ensure that the joint is firmly fused and leak-free, thus completing the overall installation.

[0018] During rainfall, rainwater from the roof flows along the slope towards funnel 1. The large opening at the top of funnel 1 expands the water collection area. The rainwater is first filtered by filter cover 4, intercepting impurities such as leaves and pebbles. Then, the rainwater enters the interior of funnel 1 and is guided by the 60° spiral blades 16 on the inner wall, forming a spiral downward flow. At the same time, the falling rainwater impacts the impeller 9 on the outer wall of cone 8, causing the impeller 9 and the rotating shaft 5 to rotate synchronously, enhancing the suction force and improving drainage efficiency. During the rotation of impeller 9, a negative pressure suction force is generated inside funnel 1. Combined with the swirling flow guided by spiral blades 16, the rainwater forms a vortex siphon flow inside funnel 1, quickly overcoming the problem of pressure resistance at the top in traditional drainage, accelerating the delivery of rainwater into the drain pipe 2, and forming a stable siphon drainage state.

[0019] When the shaft 5 rotates, the cleaning rod 6 at the upper end rotates synchronously, driving the brush 7 to scrape the outer wall of the filter cover 4 in a circular motion to remove the attached impurities. At the same time, the rotating plate 17 on the outer wall of the shaft 5 rotates with the shaft 5, and the scraper 18 always adheres to the inner wall of the filter cover 4 under the elastic force of the spring 22, scraping away the small impurities that clog the inner side of the filter cover 4. The guide rod 19 slides inside the sliding sleeve 21 to ensure the stability of the scraper 18's movement trajectory and avoid clogging of the filter cover 4's pores. The spiral water flow flows along the inner wall of the pipe, avoiding the situation where the water flow directly impacts the pipe wall in traditional drainage, greatly reducing the noise generated by the friction between the water flow and the pipe wall. The ball bearing 13 at the lower end of the cone 8 rolls in the groove 12 of the ring seat 10, providing stable support for the rotation of the shaft 5, reducing friction noise, and further optimizing the quiet effect of the drainage process. Through the dual action of the spiral blade 16 guiding the flow and the impeller 9 suction force, the drainage flow rate is increased compared to the traditional HDPE drainage pipe 2. In rainy weather, there is no water accumulation on the roof, and the drainage time is shortened.

[0020] The spiral water flow design combined with the drag-reducing structure of ball bearing 13 reduces pipe operation noise. The collaborative cleaning structure of brush 7 and scraper 18 can automatically remove impurities inside and outside the filter cover 4, eliminating the need for regular manual cleaning. This reduces filter clogging and maintenance costs and frequency. The hot-melt bonding design of the installation ring 3 and geotextile 15 ensures a tight seal between the funnel 1 and the roof base. The combination structure of ring seat 10 and support rod 11 ensures that the internal components can operate without loosening for a long time. This completely solves the problem of slow water flow caused by pressure obstruction at the top of traditional drainage pipes 2. It achieves efficient drainage through siphon vortex, preventing roof flooding during heavy rain, protecting the roof waterproofing structure and the safety of the main building. It eliminates the high-frequency noise generated by water flow impacting the pipe wall and air bubbles rubbing against the pipe wall in traditional drainage, solving the problem of drainage noise disturbing residents' lives. The self-cleaning component automatically removes impurities, preventing drainage failure caused by filter clogging, reducing the workload and safety risks of manual roof cleaning, and lowering property management costs.

[0021] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spiral flow HDPE siphon drainage plastic pipe comprising a funnel (1), a drainage pipe (2), a rotating shaft (5) and a filter cover (4), characterized in that: The upper end of the drain pipe (2) is provided with a funnel (1), the inside of the funnel (1) is provided with a rotating shaft (5), the outer wall of the rotating shaft (5) is fitted with a cone (8), the outer wall of the cone (8) is fitted with an impeller (9), the upper end of the funnel (1) is provided with a filter cover (4), the upper end of the filter cover (4) is provided with a filter cover (4), and the inner wall of the funnel (1) is provided with spiral blades (16) arranged in a 60° spiral shape and in a ring array.

2. A helically ciliated HDPE siphonic drainage plastic pipe according to claim 1, characterized in that: The funnel (1) is provided with an annular seat (10), and the lower end of the cone (8) is provided with an annularly distributed roller groove (12). The upper end of the annular seat (10) is rotatably installed with a ball bearing (13) arranged in an annular array and rolled inside the roller groove (12).

3. A helically cased HDPE siphonic drainage plastic pipe according to claim 2, characterized in that: The lower end of the ring seat (10) is provided with support rods (11) arranged in a ring array and connected to the inner wall of the funnel (1) at the lower end.

4. A helically ciliated HDPE siphonic drainage plastic pipe according to claim 1, characterized in that: A cleaning rod (6) is sleeved on the upper outer wall of the rotating shaft (5), and a brush (7) is provided at the lower end of the cleaning rod (6) and is evenly distributed and attached to the outer wall of the filter cover (4).

5. A helically ciliated HDPE siphonic drainage plastic pipe according to claim 1, characterized in that: The filter cover (4) has a bearing (23) embedded inside its upper end, and the upper end of the rotating shaft (5) is rotatably installed inside the bearing (23).

6. A helically ciliated HDPE siphonic drainage plastic pipe according to claim 1, characterized in that: The outer wall of the rotating shaft (5) is provided with a support plate (20), the inner wall of the filter cover (4) is provided with a fixing rod (14) connected to the funnel (1), the outer side of the support plate (20) is provided with a rotating plate (17), the outer wall of the rotating plate (17) is provided with scrapers (18) that are evenly distributed and attached to the inner wall of the filter cover (4), and a spring (22) is provided between the rotating plate (17) and the support plate (20).

7. A helically ciliated HDPE siphonic drainage plastic pipe according to claim 6, characterized in that: The support plate (20) has a sliding sleeve (21) embedded inside it, and the lower end of the rotating plate (17) is provided with a guide rod (19) that is slidably installed inside the sliding sleeve (21) and inserted into the spring (22).

8. A helically spiraled flow directing HDPE siphonic drainage plastic pipe according to claim 1 characterized in that: The funnel (1) is fitted with an installation ring (3) on its outer wall, and geotextile (15) is provided inside the lower end of the installation ring (3).

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