Anti-blocking step-by-step filtering device for urban drainage pipeline

Abstract

The utility model discloses an urban drainage pipeline anti-blocking step-by-step filtering device in the technical field of drainage pipes, which comprises a drainage pipeline, a drainage inner cavity is arranged in the drainage pipeline, a primary filter screen is arranged on the inner wall of the top end of the drainage inner cavity, and a secondary filter screen is arranged on the inner wall of the drainage inner cavity at the bottom end of the primary filter screen. A third-level filter screen is arranged on the inner wall, located at the bottom end of the second-level filter screen, of the drainage The first-stage filter screen, the second-stage filter screen and the third-stage filter screen are arranged in the device, the filtering precision is gradually increased from top to bottom, and impurities of different sizes can be effectively intercepted and prevented from entering the deep position of a drainage pipeline to cause blockage. By arranging the impurity collecting assembly, impurities intercepted by the filter screen can be conveniently collected, regular cleaning and analysis are facilitated, and therefore the potential blocking problem can be found and solved in time. A handle is arranged at the top of the sundry collecting frame, lifting and cleaning are facilitated, and the maintenance difficulty and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically to a step-by-step filtration device for preventing blockages in urban drainage pipes. Background Technology

[0002] In urban drainage systems, drainage pipes frequently face the problem of blockage. This not only affects the normal drainage function of the city but can also lead to sewage overflow, environmental pollution, and disruption to residents' lives. Traditional drainage pipe designs often lack effective filtration mechanisms, allowing debris such as leaves, plastic bags, and paper scraps to easily enter and accumulate, eventually causing blockages. Although some filtration devices exist on the market, most suffer from poor filtration efficiency and difficult maintenance, failing to fundamentally solve the problem of drainage pipe blockage. Therefore, designing a tiered filtration system that can effectively prevent drainage pipe blockage is particularly important. Utility Model Content

[0003] The purpose of this invention is to provide a step-by-step filtration device for preventing blockages in urban drainage pipes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a step-by-step filtration device for preventing blockage in urban drainage pipes, comprising a drainage pipe, an inner drainage cavity inside the drainage pipe, a primary filter screen on the top inner wall of the inner drainage cavity, a secondary filter screen on the inner wall at the bottom of the primary filter screen, and a tertiary filter screen on the inner wall at the bottom of the secondary filter screen. A connecting frame is fixedly connected to one end of the drainage pipe, and an installation cavity is provided inside the connecting frame. The installation cavity is connected to the drainage cavity, and a debris collection assembly is provided inside the installation cavity. The debris collection assembly includes a debris collection frame, and a debris collection chamber is provided inside the debris collection frame. A baffle is fixedly connected to the side of the debris collection frame near the drainage cavity. The side walls of the baffle, which are respectively matched with the positions of the primary, secondary, and tertiary filter screens, are provided with debris inlets. The primary, secondary, and tertiary filter screens are all inclined downwards towards the debris inlet end.

[0005] As a further embodiment of this utility model: the highest point of the first-stage filter, the second-stage filter, and the third-stage filter near the debris inlet is higher than the highest point of the corresponding debris inlet.

[0006] As a further improvement of this utility model: a bottom intercepting net is fixed to the side wall of the debris collection chamber at the bottom of the three-stage filter.

[0007] As a further improvement of this utility model: the top of the debris collection box is fixedly connected to a top cover, and the top of the top cover is fixedly connected to a handle.

[0008] As a further improvement of this utility model, the filtration accuracy of the primary filter, secondary filter and tertiary filter increases progressively from top to bottom.

[0009] As a further embodiment of this utility model: the bottom of the drainage pipe is fixedly connected to a sewer, the drainage inner cavity is through-hole, and the bottom of the drainage inner cavity is through-connected to the inner cavity of the sewer.

[0010] As a further embodiment of this utility model: the drainage cavity is fixedly connected to multiple baffles at the bottom of the primary filter, secondary filter and tertiary filter respectively, and the primary filter, secondary filter and tertiary filter are all set on the top of the baffles that are matched in position.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: The device is equipped with primary, secondary, and tertiary filters, with filtration precision increasing progressively from top to bottom. This effectively intercepts debris of different sizes, preventing it from entering deep into the drainage pipes and causing blockages. The debris collection component allows for convenient collection of debris intercepted by the filters, facilitating regular cleaning and analysis, and enabling timely detection and resolution of potential blockages. A handle at the top of the debris collection box facilitates lifting and cleaning, reducing maintenance difficulty and costs. The filters are all positioned on top of appropriately sized blocks, ensuring the stability and durability of the device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the anti-clogging step-by-step filtration device for urban drainage pipelines according to this utility model;

[0013] Figure 2 This is an enlarged cross-sectional view of the drainage pipe in the anti-clogging step-by-step filtration device for urban drainage pipes of this utility model.

[0014] Figure 3 This utility model relates to a step-by-step filtration device for preventing blockages in urban drainage pipes. Figure 2 Enlarged structural diagram at point A;

[0015] Figure 4 This is an enlarged cross-sectional view of the connecting frame in the anti-clogging step-by-step filtration device for urban drainage pipes of this utility model.

[0016] Figure 5 This is an enlarged cross-sectional view of the debris collection component in the anti-clogging step-by-step filtration device for urban drainage pipes of this utility model.

[0017] In the diagram: 1. Drainage pipe; 2. Sewer; 3. Connecting frame; 31. Installation cavity; 4. Debris collection assembly; 41. Debris collection frame; 42. Debris collection chamber; 43. Top cover; 44. Handle; 45. Baffle; 46. Debris inlet; 47. Bottom interception net; 5. Drainage cavity; 6. Primary filter; 7. Secondary filter; 8. Tertiary filter. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Please see Figures 1-5In this embodiment of the invention, the anti-clogging step-by-step filtration device for urban drainage pipes includes a drainage pipe 1, with a drainage cavity 5 inside the drainage pipe 1. A primary filter screen 6 is installed on the inner wall at the top of the drainage cavity 5 to intercept larger debris. A secondary filter screen 7 is installed on the inner wall at the bottom of the primary filter screen 6 to further intercept smaller debris. A tertiary filter screen 8 is installed on the inner wall at the bottom of the secondary filter screen 7 to intercept the finest debris, ensuring that only clean water can pass through.

[0023] One end of the drain pipe 1 is fixedly connected to a connecting frame 3. The connecting frame 3 has an installation cavity 31 inside, which is connected to the drain cavity 5. The installation cavity 31 is equipped with a debris collection component 4 inside. The debris collection component 4 includes a debris collection frame 41, which has a debris collection chamber 42 inside for collecting debris intercepted by the filter screen.

[0024] A baffle 45 is fixedly connected to the side of the debris collection frame 41 near the drainage cavity 5. The sidewalls of the baffle 45, which correspond to the positions of the primary filter 6, secondary filter 7, and tertiary filter 8, are all provided with debris inlets 46, allowing debris intercepted by the filters to fall smoothly into the debris collection cavity 42. The primary filter 6, secondary filter 7, and tertiary filter 8 are all angled downwards towards the debris inlet 46 to ensure that debris can slide off smoothly.

[0025] Furthermore, the highest points of the primary filter 6, secondary filter 7, and tertiary filter 8 near the debris inlet 46 are all higher than the highest point of their respective inlets 46 to prevent debris from escaping through the gaps between the filters and the baffle 45. A bottom interceptor 47 is fixed to the side wall of the debris collection chamber 42 at the bottom of the tertiary filter 8 to intercept small debris that may fall due to water flow.

[0026] A top cover 43 is fixedly connected to the top of the debris collection box 41, and a handle 44 is fixedly connected to the top of the top cover 43 to facilitate lifting the debris collection box 41 for cleaning. A sewer 2 is fixedly connected to the bottom of the drain pipe 1, and the bottom of the drain cavity 5 is connected to the internal cavity of the sewer 2 to ensure that clean water can be discharged smoothly.

[0027] The debris collection box 41 can be lifted by the handle 44 to clean the debris in the debris collection chamber 42. By analyzing the types of debris in the debris collection chamber 42, the cause of blockage in the urban drainage pipe can be analyzed and then targeted treatment can be carried out.

[0028] The working principle of this invention is as follows: When water flows into the drainage pipe 1 in the urban drainage system, it first encounters the primary filter screen 6. The primary filter screen 6 has a relatively large aperture and is mainly used to intercept large debris such as leaves and plastic bags. These debris are trapped by the filter screen, while the clean water continues to flow downwards.

[0029] The water that has undergone preliminary filtration by the primary filter screen 6 continues to flow to the secondary filter screen 7. The pore size of the secondary filter screen 7 is smaller than that of the primary filter screen 6, which can further intercept smaller debris, such as paper scraps and small stones. In this way, the debris in the water flow is further reduced, ensuring the smooth progress of subsequent filtration.

[0030] After passing through the secondary filter screen 7, the water flows into the area of ​​the tertiary filter screen 8. The tertiary filter screen 8 has the smallest pore size and is used to intercept the finest debris and particles, such as silt and fibers. After being filtered through the three-stage filter screen, almost all the debris in the water is removed, and only clean water can pass through.

[0031] Debris intercepted by the various filter screens slides down the inclined surface of the screens and enters the debris collection chamber 42 through the debris inlet 46. The debris collection chamber 42 is located outside the drainage inner chamber 5 and is connected to the drainage inner chamber 5 via the connecting frame 3. In this way, debris is effectively collected, preventing it from accumulating in the drainage pipe and causing blockages.

[0032] As debris accumulates, the debris collection chamber 42 will gradually fill up. At this point, the debris collection box 41 can be removed from the mounting cavity 31 by lifting the handle 44 on the debris collection box 41, and the debris in the debris collection chamber 42 can be cleaned. After cleaning, the debris collection box 41 can be put back into the mounting cavity 31, and the device can be used again.

[0033] The clean water, after being filtered through each stage, continues to flow downwards and is eventually discharged through the connection between the bottom of the drainage cavity 5 and the internal cavity of the sewer 2, entering the city's drainage system.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A step-by-step filtration device for preventing blockage in urban drainage pipes, comprising drainage pipes (1), characterized in that: The drainage pipe (1) has a drainage cavity (5) inside. A primary filter screen (6) is provided on the inner wall of the top of the drainage cavity (5). A secondary filter screen (7) is provided on the inner wall of the drainage cavity (5) at the bottom of the primary filter screen (6). A tertiary filter screen (8) is provided on the inner wall of the drainage cavity (5) at the bottom of the secondary filter screen (7). A connecting frame (3) is fixedly connected to one end of the drainage pipe (1). An installation cavity (31) is provided inside the connecting frame (3). The installation cavity (31) is connected to the drainage cavity (5). The installation cavity (31) is provided with a drainage cavity (5). There is a debris collection component (4), which includes a debris collection frame (41). The debris collection frame (41) has a debris collection cavity (42) inside. A baffle (45) is fixedly connected to the side of the debris collection frame (41) near the drainage cavity (5). The sidewalls of the baffle (45) that match the positions of the primary filter (6), secondary filter (7) and tertiary filter (8) are all provided with debris inlets (46). The primary filter (6), secondary filter (7) and tertiary filter (8) are all inclined downward toward the debris inlet (46).

2. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The highest point of the first-stage filter (6), the second-stage filter (7), and the third-stage filter (8) near the debris inlet (46) is higher than the highest point of the matching debris inlet (46).

3. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The debris collection chamber (42) is located on the side wall at the bottom of the three-stage filter (8) and a bottom intercepting net (47) is fixed thereon.

4. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The top of the debris collection box (41) is fixedly connected to a top cover (43), and the top of the top cover (43) is fixedly connected to a handle (44).

5. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The filtration precision of the primary filter (6), secondary filter (7) and tertiary filter (8) increases progressively from top to bottom.

6. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The bottom of the drainage pipe (1) is fixedly connected to the sewer (2), the drainage cavity (5) is through-hole, and the bottom of the drainage cavity (5) is through-hole connected to the internal cavity of the sewer (2).

7. The anti-clogging step-by-step filtration device for urban drainage pipes according to claim 1, characterized in that: The drainage cavity (5) is located at the bottom of the primary filter (6), secondary filter (7) and tertiary filter (8) and is fixedly connected to multiple baffles. The primary filter (6), secondary filter (7) and tertiary filter (8) are all located on the top of the baffles that match the position.

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