A municipal sewer pipe facilitating filtration of sediment

Abstract

The utility model discloses a kind of municipal drainage pipelines convenient to filter sediment, it is related to municipal drainage pipeline technical field, including pipe body, silt discharge pipeline, drainage pipeline, bolt hole and flow guide hole;Silt discharge pipeline, flow guide plate and flow guide screen are arranged in the pipe body, the flow guide screen is installed in the top of flow guide plate, the flow guide plate is communicated with silt discharge pipeline, two symmetrical and inverted splayed flow guide plates in pipe body, sludge in water flow can be concentrated to the bottom of flow guide plate, then be discharged quickly by silt discharge pipeline communicated at bottom, and the design that flow guide plate and flow guide screen, pipe body bottom surface each interval ten centimeters, both ensure water flow circulation, and reserve space for sludge settlement, avoid water flow impact sediment.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage pipe technology, specifically a municipal drainage pipe that facilitates filtration and sedimentation. Background Technology

[0002] As a core infrastructure for urban water environment management and flood control, municipal drainage pipelines need to simultaneously address the dual challenges of "surge in drainage volume" and "complex types of impurities" (including large particles such as stones and branches, as well as fine particles such as silt) during the urbanization process. Existing pipelines often fail to meet dynamic operating conditions due to insufficient adaptability of filtration and drainage, as well as problems such as fine particle accumulation. To address this pain point, patent CN202323174806.6 proposes a "municipal drainage pipe filtration structure," which constructs a dynamically adjustable filtration system through an integrated design of pipe cover, connecting column, and base plate. Its core lies in assembling the filter screen onto the base plate via a limiting shaft and rotating rod, driven by a rotating motor to achieve multi-angle switching. When the pipe's sewage load is light, the filter screen can be tilted at an obtuse angle to the base plate, intercepting some impurities while retaining the upper water flow channel, balancing filtration effect and drainage flow rate. When sewage demand increases (high impurity content), the filter screen can be adjusted to be perpendicular to the base plate, forming full-section interception and enhancing impurity filtration capacity. Especially in extreme high-flow scenarios such as heavy rains during the flood season, the filter screen can completely conform to the base plate (parallel state), achieving unobstructed drainage and fundamentally avoiding the pipe blockage problem caused by impurity accumulation in traditional fixed filters, significantly improving adaptability and practicality to different drainage conditions. However, it should be noted that this structure still has technical limitations: First, the filtration system relies only on a single-stage filter screen and does not have a multi-stage filtration mechanism, so its ability to intercept fine particulate impurities such as silt is weak; Second, it lacks a dedicated sedimentation guidance structure, so fine particulate impurities are difficult to settle in the pipe and are easily carried into the downstream pipe with the water flow. After long-term accumulation, they may still cause pipe siltation and blockage. Further optimization is needed in combination with fine particle separation technology. Based on this, this solution proposes "a municipal drainage pipe that facilitates filtration and sedimentation" to address the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a municipal drainage pipe that facilitates filtration and sedimentation, thereby solving the problem mentioned in the background art that the single-stage filter screen of existing equipment on the market has a weak interception ability for fine particulate impurities such as silt and sand.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a municipal drainage pipe that facilitates filtration and sedimentation, comprising a pipe body, a sludge discharge pipe, a drainage pipe, bolt holes, and a flow guide hole; The pipe body is equipped with a sludge discharge pipe, a guide plate, and a guide filter screen. The guide filter screen is installed above the guide plate, and the guide plate is connected to the sludge discharge pipe.

[0005] As a preferred technical solution of this utility model, bolt holes are opened on the side of the pipe body, the bolt holes are distributed in a U-shaped array, and the pipe body adopts a rectangular structure. A through hole is opened at the bottom of the center line of the pipe body to connect with the sludge discharge pipeline. The above-mentioned technical solution features U-shaped array bolt holes on the side of the pipe body. This design allows for more even stress distribution during pipe splicing, resulting in stronger connections and effectively resisting vibrations caused by water flow during municipal drainage, thus reducing the risk of leakage at pipe connections. Simultaneously, the rectangular pipe structure better suits the spatial layout of installation scenarios such as municipal roads and green belts, facilitating installation in conjunction with surrounding facilities and improving construction adaptability. Furthermore, a through-hole at the bottom centerline of the pipe connects to the sludge drainage pipeline, allowing settled sludge to quickly enter the drainage pipeline along the concentrated area at the centerline, preventing blockages caused by sludge accumulation at the bottom of the pipe and improving the targeting and efficiency of sludge drainage.

[0006] As a preferred technical solution of this utility model, an overflow hole is opened on the side of the pipe body, the overflow hole is connected to the overflow cavity, and the pipeline of the overflow cavity is 15 cm higher than the surface of the bolt hole. The overflow hole is an array-distributed grid structure. The above technical solution connects the overflow holes on the side of the pipe to the overflow cavity, enabling diversion in high-flow drainage scenarios such as heavy rain, effectively relieving the main drainage pressure on the pipe, preventing the pipe from rupturing due to excessive water pressure, and improving the pipe's impact resistance. Furthermore, the overflow cavity is 15 cm higher than the bolt hole surface, ensuring a reasonable water level is maintained within the pipe, forming a stable water flow layer. This prevents excessively fast water flow from scouring the sediment at the bottom, providing a stable environment for sedimentation and enhancing the sedimentation effect. Simultaneously, the overflow holes are arranged in an array of grid structures, ensuring smooth diversion drainage while initially intercepting impurities in the water flow, preventing large particles from entering the overflow cavity and causing blockages. The grid structure also facilitates subsequent cleaning, reducing maintenance difficulty.

[0007] As a preferred technical solution of this utility model, a filter cover is movably connected above the tube body, and a rectangular filter hole is opened on the surface of the filter cover, and the diameter of the filter cover is half of the overflow hole. Using the above technical solution, the filter cover movably connected to the top of the pipe can be quickly disassembled and installed, facilitating regular cleaning of intercepted impurities by staff. Compared with a fixed filter structure, maintenance is more convenient, reducing the manpower and time costs of municipal pipeline maintenance. Simultaneously, the rectangular filter holes on the filter cover surface, with a hole diameter half that of the overflow hole, allow for precise interception of larger particles. The filtration accuracy is higher than that of the overflow hole, achieving a multi-stage filtration logic of "coarse filtration followed by diversion." This proactively prevents large impurities from entering the pipe body, reducing the probability of blockage in the guide filter and drainage pipes from the source, extending the overall service life of the equipment. Furthermore, the rectangular filter holes have a larger contact area for intercepting impurities within the same opening area, resulting in higher filtration efficiency and reducing the likelihood of blockage due to impurities.

[0008] As a preferred technical solution of this utility model, the filter cover abuts against the flow guide filter screen below, the flow guide filter screen has evenly spaced holes on its side, the tube body is fixedly connected to the flow guide plate, there are two symmetrically distributed flow guide plates, and the flow guide plate as a whole has an inverted figure-eight structure, the bottom of the flow guide plate is connected to the sludge discharge pipe, the upper part of the flow guide plate is 10 cm away from the lower surface of the flow guide filter screen, and the flow guide plate is 10 cm away from the bottom surface of the tube body for water passage; The above technical solution features a design where the filter cover abuts against the guide filter screen, creating a tightly fitted dual filtration structure that prevents impurities from slipping into the pipe body through the gap between them, thus improving filtration integrity. The guide filter screen has evenly spaced holes on its sides, guiding the water flow through the filter cover to disperse evenly along its sides, preventing excessively fast local flow rates that could cause impurities to be flushed into the drainage pipe and cause blockages. Simultaneously, the pipe body is fixedly connected to the guide plates, which are two symmetrically distributed and inverted as a whole. The figure-eight structure guides the dispersed water flow, concentrating silt and other sediments at the bottom of the guide plate. The bottom of the guide plate connects to the sludge discharge pipe, allowing the concentrated silt to be quickly discharged into the pipe. Furthermore, the design of a 10-centimeter gap between the top of the guide plate and the bottom surface of the filter screen, and a 10-centimeter gap between the guide plate and the bottom surface of the pipe body, ensures normal water flow while providing ample space for silt settling. This prevents the water flow from directly impacting the settled silt, further enhancing the settling effect.

[0009] As a preferred technical solution of this utility model, the bottom of the overflow cavity is connected to the drainage pipe through the pipe body, and the pipeline composed of the pipe body, the overflow cavity and the drainage pipe has an F-shaped structure. The above technical solution connects the bottom of the overflow chamber to the drainage pipe through the pipe body. The pipe body, overflow chamber, and drainage pipe form an F-shaped structure. This F-shaped structure design allows the diverted water flow entering the overflow chamber through the overflow hole to be smoothly guided into the drainage pipe through the pipe body, ensuring the efficiency of diversion drainage and preventing excessive pressure caused by water accumulation in the overflow chamber. On the other hand, the F-shaped structure organically integrates the main drainage of the pipe body, the diversion drainage of the overflow chamber, and the drainage pipe, making the overall pipe layout more compact, reducing the footprint, adapting to the complex installation environment in municipal engineering, and avoiding mutual interference between different water flow channels, thus improving the stability of the overall drainage system.

[0010] As a preferred technical solution of this utility model, the bottom of the guide plate is connected to the pipe body, and the sludge discharge pipe and the drainage pipe are symmetrically distributed. A guide hole is opened in the pipe body at the outer position of the guide plate, and the guide hole is connected to the drainage pipe and the overflow cavity. The above technical solution connects the bottom of the guide plate to the pipe body, and the sludge discharge pipe and the drainage pipe are symmetrically distributed. This symmetrical distribution design facilitates the positioning of the pipes during installation, reduces construction difficulty, and ensures that the discharge of sludge from the sludge discharge pipe and the discharge of water from the drainage pipe do not interfere with each other, avoiding maintenance difficulties caused by a chaotic pipe layout. At the same time, a guide hole is opened on the outer side of the pipe body, and the guide hole is connected to the drainage pipe and the overflow cavity. This guide hole can guide the water flow outside the guide plate to quickly enter the drainage pipe and the overflow cavity, further improving the water flow efficiency, avoiding local water accumulation in the pipe body, and replenishing the water flow in the overflow cavity to ensure the stable operation of the overflow system and reduce the problem of secondary sludge accumulation caused by water stagnation inside the pipe body.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This municipal drainage pipeline has significant advantages in installation and foundation layout. The rectangular structure of the pipe body can better adapt to complex installation scenarios such as municipal roads and green belts, improving construction adaptability. The U-shaped array of bolt holes on its side allows for more even stress distribution and stronger connection during pipe splicing, effectively resisting water flow impact and vibration, and reducing the risk of leakage at the connection. At the same time, the sludge discharge pipeline and the drainage pipeline are symmetrically distributed, which not only facilitates positioning during installation to simplify the construction process, but also avoids mutual interference between sludge discharge and drainage functions, reducing subsequent maintenance difficulties. 2. The pipeline features a dual filtration and precise flow guidance design, significantly improving the filtration and sedimentation effect: The filter cover, which is movably connected at the top of the pipe, is easy to disassemble and clean. It can first intercept large particles of impurities to achieve coarse filtration, while the flow guidance filter screen below it can further filter and guide the water flow to be evenly dispersed, forming a double protection to reduce clogging; Two symmetrical and inverted V-shaped flow guide plates inside the pipe can concentrate the sludge in the water flow to the bottom of the flow guide plates, and then quickly discharge it through the sludge discharge pipe connected at the bottom. The design of 10 cm intervals between the flow guide plates, the flow guidance filter screen, and the bottom surface of the pipe ensures water flow and leaves space for sludge settling, avoiding water flow impact sedimentation; 3. The diversion and flow channel design of the pipeline ensures the stability and efficiency of the overall drainage system: The overflow holes of the array grid structure on the side of the pipe body are connected to the surface of the overflow cavity by 15 cm, which can divert and reduce pressure when the flow rate is high, and prevent the pipe body from breaking due to excessive water pressure; The F-shaped structure composed of the pipe body, overflow cavity and drainage pipe can compactly integrate the main drainage and diversion channels, reduce the footprint and avoid water flow interference; In addition, the guide holes and overflow cavity opened on the outside of the guide plate of the pipe body can guide the water flow and prevent water accumulation and secondary accumulation of silt in the pipe. The whole system is adapted to the municipal requirements for drainage stability and low maintenance costs, effectively improving the pipeline operation efficiency and service life. Attached Figure Description

[0012] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the sludge discharge pipeline and drainage pipeline structure of this utility model; Figure 3 This is a side view of the cross-sectional structure of the tube body of this utility model; Figure 4 This is a schematic diagram of the filter cover and overflow hole structure of this utility model; Figure 5 This is a side view of the filter cover structure of this utility model; Figure 6 This is a side view of the flow guide filter structure of this utility model; Figure 7 This is a schematic diagram of the overflow hole and overflow cavity structure of this utility model; Figure 8 This is a side view of the structure of Embodiment 2 of this utility model; Figure 9 This is a cross-sectional front view of Embodiment 2 of the present invention; Figure 10 This is a cross-sectional side view of Embodiment 2 of the present invention.

[0013] In the diagram: 1. Pipe body; 2. Sludge discharge pipe; 3. Drainage pipe; 4. Bolt hole; 5. Filter cover; 6. Overflow hole; 7. Guide plate; 8. Guide filter screen; 9. Overflow chamber; 10. Guide hole. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-10 The present invention provides a municipal drainage pipe that facilitates filtration and sedimentation; Example 1. For details, please refer to the following: Figure 1 - Figure 7 It includes pipe body 1, sludge discharge pipe 2, drainage pipe 3, bolt hole 4, filter cover 5, overflow hole 6, guide plate 7, guide filter screen 8, overflow cavity 9 and guide hole 10; The pipe body 1 is equipped with a sludge discharge pipe 2, a guide plate 7, and a guide filter 8. The guide filter 8 is installed above the guide plate 7, and the guide plate 7 is connected to the sludge discharge pipe 2.

[0016] Bolt holes 4 are opened on the side of pipe body 1, and the bolt holes 4 are distributed in a U-shaped array. Pipe body 1 adopts a rectangular structure. A through hole is opened at the bottom centerline of pipe body 1 to connect with the sludge drainage pipe 2. The U-shaped array of bolt holes 4 on the side of pipe body 1 allows for more even stress distribution during pipe splicing, stronger connection, and effective resistance to vibration caused by water flow impact during municipal drainage, reducing the risk of leakage at pipe connection. At the same time, the rectangular structure of pipe body 1 is more in line with the spatial layout of installation scenarios such as municipal roads and green belts, making it easier to cooperate with surrounding facilities and improving construction adaptability. In addition, the through hole at the bottom centerline of pipe body 1 to connect with the sludge drainage pipe 2 allows the sludge settled in the pipe to quickly enter the sludge drainage pipe 2 along the concentrated area of ​​the centerline of pipe body 1, avoiding the blockage problem caused by the sludge being dispersed and accumulated at the bottom of pipe body 1, and improving the targeting and efficiency of sludge drainage. An overflow hole 6 is opened on the side of the pipe body 1, which is connected to the overflow cavity 9. The pipe of the overflow cavity 9 is 15 cm higher than the surface of the bolt hole 4. The overflow hole 6 is an array of grid structures. The overflow hole 6 on the side of the pipe body 1 is connected to the overflow cavity 9. It can divert the flow in high-flow drainage scenarios such as rainstorms, effectively relieve the main drainage pressure of the pipe body 1, prevent the pipe body 1 from rupturing due to excessive water pressure, and improve the impact resistance of the pipe. The overflow cavity 9 is 15 cm higher than the surface of the bolt hole 4, which can ensure that the water level in the pipe body 1 is always maintained, forming a stable water flow layer. It can prevent the water flow velocity from washing away the sediment at the bottom, providing a stable environment for the sedimentation of the sediment and enhancing the sedimentation effect. At the same time, the overflow hole 6 is an array of grid structures, which can not only ensure the smoothness of the diversion drainage, but also initially intercept impurities in the water flow, preventing large particles of impurities from entering the overflow cavity 9 and causing blockage. The grid structure is also easy to clean later, reducing the difficulty of maintenance. A filter cover 5 is movably connected to the top of the pipe body 1. The surface of the filter cover 5 has rectangular filter holes, and the diameter of the filter cover 5 is half that of the overflow hole 6. The filter cover 5, which is movably connected to the top of the pipe body 1, can be quickly disassembled and installed, making it convenient for staff to clean the intercepted impurities regularly. Compared with a fixed filter structure, maintenance is more convenient, reducing the manpower and time costs of municipal pipeline maintenance. At the same time, the rectangular filter holes on the surface of the filter cover 5, and the diameter of the filter cover 5 is half that of the overflow hole 6, can accurately intercept larger particles of impurities such as stones, branches, and garbage. The filtration accuracy is higher than that of the overflow hole 6, realizing a multi-stage filtration logic of "coarse filtration first and then diversion". This prevents large impurities from entering the interior of the pipe body 1 in advance, reducing the probability of blockage of the guide filter screen 8 and the sludge discharge pipe 2 from the source, extending the overall service life of the equipment. Moreover, the rectangular filter holes have a larger contact area for intercepting impurities under the same opening area, resulting in higher filtration efficiency and less clogging of the holes due to impurities. The filter cover 5 abuts against the flow guide filter 8. The flow guide filter 8 has evenly spaced holes on its sides. The pipe body 1 is fixedly connected to the guide plate 7. There are two symmetrically distributed guide plates 7, and the overall structure of the guide plates 7 is an inverted figure-eight shape. The bottom of the guide plate 7 is connected to the sludge discharge pipe 2. The upper surface of the guide plate 7 is 10 cm away from the lower surface of the flow guide filter 8, and the bottom surface of the guide plate 7 is 10 cm away from the bottom surface of the pipe body 1 to allow water to pass through. The design of the filter cover 5 abutting against the flow guide filter 8 creates a tightly fitted double filtration structure between the filter cover 5 and the flow guide filter 8, preventing impurities from slipping into the pipe body 1 through the gap between them, thus improving filtration integrity. The evenly spaced holes on the sides of the flow guide filter 8 guide the water flow passing through the filter cover 5 to be evenly dispersed along the sides of the flow guide filter 8. To prevent excessively fast local water flow from causing impurities to be washed into the sludge discharge pipe 2 and causing blockage; at the same time, the pipe body 1 is fixedly connected to the guide plate 7, and the guide plate 7 has two symmetrically distributed, inverted V-shaped structures. This structure can guide the dispersed water flow, concentrating sludge and other sediments in the water flow to the bottom of the guide plate 7. The bottom of the guide plate 7 is connected to the sludge discharge pipe 2, which can quickly discharge the concentrated sludge into the sludge discharge pipe 2; in addition, the design of a 10 cm gap between the top of the guide plate 7 and the lower surface of the guide filter screen 8, and a 10 cm gap between the guide plate 7 and the bottom surface of the pipe body 1 to allow water to pass through, not only ensures the normal flow of water, but also provides sufficient space for sludge settling, avoiding direct impact of water flow on the settled sludge, and further enhancing the sedimentation effect; The bottom of the overflow chamber 9 is connected to the drainage pipe 3 through the pipe body 1. The pipe body 1, the overflow chamber 9, and the drainage pipe 3 form an F-shaped structure. This F-shaped structure design allows the diverted water flow entering the overflow chamber 9 through the overflow hole 6 to be smoothly introduced into the drainage pipe 3 through the pipe body 1, ensuring the high efficiency of diversion drainage and preventing water accumulation in the overflow chamber 9 that could lead to excessive pressure. On the other hand, the F-shaped structure organically integrates the main drainage of the pipe body 1, the diversion drainage of the overflow chamber 9, and the drainage pipe 3, making the overall pipe layout more compact, reducing the footprint, adapting to the complex installation environment in municipal engineering, and avoiding mutual interference between different water flow channels, thus improving the stability of the overall drainage system. Example 2

[0017] For details, please refer to the following: Figures 8-10 The difference between this embodiment and embodiment one is that the bottom of the guide plate 7 is connected to the pipe body 1, and the sludge discharge pipe 2 and the drainage pipe 3 are symmetrically distributed. A guide hole 10 is opened on the outer side of the pipe body 1, and the guide hole 10 is connected to the drainage pipe 3 and the overflow chamber 9. The bottom of the guide plate 7 is connected to the pipe body 1, and the sludge discharge pipe 2 and the drainage pipe 3 are symmetrically distributed. This symmetrical distribution design not only facilitates the positioning of the pipe during installation and reduces the construction difficulty, but also ensures that the discharge of sludge from the sludge discharge pipe 2 and the discharge of water from the drainage pipe 3 do not interfere with each other, avoiding maintenance difficulties caused by chaotic pipe layout. At the same time, a guide hole 10 is opened on the outer side of the guide plate 7 in the pipe body 1, and the guide hole 10 is connected to the drainage pipe 3 and the overflow chamber 9. The guide hole 10 can guide the water flow outside the guide plate 7, that is, the water flow after sedimentation and preliminary filtration, to quickly enter the drainage pipe 3 and the overflow chamber 9, further improving the water flow efficiency, avoiding local water accumulation in the pipe body 1, and supplementing the water flow in the overflow chamber 9 to ensure the stable operation of the overflow system and reduce the problem of secondary sludge accumulation caused by water stagnation inside the pipe body 1. Working principle: When a municipal drainage pipe that facilitates filtration and sedimentation is in use, the water flows into the pipe and first passes through the movable filter cover 5 on the top of the pipe body 1. The surface of the filter cover 5 has rectangular filter holes with a diameter only half that of the overflow hole 6, which can accurately intercept large particles of impurities such as stones and branches, achieving coarse filtration at the source; and the filter cover 5 can be quickly disassembled, which is convenient for subsequent cleaning of the intercepted impurities, avoids clogging of the filter holes and affects the water intake efficiency, and reduces the interference of impurities in subsequent treatment stages. The water that has passed through the coarse filter flows into the guide filter 8 that is tightly abutted against the filter cover 5 below. The guide filter 8 has evenly spaced holes on its side. On the one hand, it performs secondary filtration on the small impurities in the water that are not intercepted, further purifying the water quality. On the other hand, it guides the water flow to be evenly distributed along the side of the filter, preventing the local water flow rate from being too fast and avoiding impurities from being washed into the depths of the pipe and causing blockage. This creates a stable water flow environment for subsequent sludge sedimentation. The dispersed water flow enters the interior of the pipe body 1 and comes into contact with two symmetrically distributed, inverted V-shaped guide plates 7. The special structure of the guide plates 7 will concentrate the sediment such as silt and sand in the water flow to the bottom of the guide plates 7. At the same time, the guide plates 7 are spaced 10 cm apart from the lower surface of the guide filter screen 8 and the bottom surface of the pipe body 1, which not only ensures the normal flow of water, but also avoids the water flow from directly impacting the bottom of the pipe, allowing the silt to quickly deposit to the concentrated area at the bottom of the guide plates 7 under the action of gravity. The sludge deposited at the bottom of the guide plate 7 flows directly into the sludge discharge pipe 2, which is connected to it, through the through hole at the bottom of the center line of the pipe body 1. The sludge discharge pipe 2 and the drainage pipe 3 are symmetrically distributed and independent of the main drainage channel. This allows the concentrated sludge to be discharged quickly and in a directional manner, completely avoiding the blockage problem caused by the sludge being dispersed and accumulated at the bottom of the pipe body 1, and ensuring that the main drainage channel is always unobstructed. When encountering high-flow drainage scenarios such as heavy rain, the water level in the pipe body 1 rises to the height of the overflow hole 6. Some of the water will enter the overflow chamber 9 through the grid-type overflow hole 6 on the side of the pipe body 1. The overflow chamber 9 pipe is 15 centimeters higher than the surface of the bolt hole 4. This can maintain a reasonable water level in the pipe body 1, prevent the water flow from washing away the settled silt, and reduce the pressure on the main drainage channel by diverting the flow, thus preventing the pipe body 1 from rupturing due to excessive water pressure. In the final discharge stage, the main water flow flows into the drainage pipe 3 through the gap between the guide plate 7 and the bottom surface of the pipe body 1; the diverted water flow in the overflow chamber 9 flows smoothly into the drainage pipe 3 through the F-shaped structure formed by the pipe body 1, the overflow chamber 9 and the drainage pipe 3.

[0018] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal drainage pipe that facilitates filtration and sedimentation, comprising a pipe body (1); characterized in that: The pipe body (1) is provided with a sludge discharge pipe (2), a guide plate (7) and a guide filter (8). The guide filter (8) is installed above the guide plate (7). The guide plate (7) is connected to the sludge discharge pipe (2).

2. A municipal drainage pipe for easy filtration and sedimentation according to claim 1, characterized in that, Bolt holes (4) are opened on the side of the pipe body (1). The bolt holes (4) are distributed in a U-shaped array. The pipe body (1) adopts a rectangular structure. A through hole is opened at the bottom of the center line of the pipe body (1) to connect with the sludge discharge pipe (2).

3. A municipal drainage pipe for easy filtration and sedimentation according to claim 2, characterized in that, The pipe body (1) has an overflow hole (6) on its side. The overflow hole (6) is connected to the overflow cavity (9). The pipeline of the overflow cavity (9) is 15 cm higher than the surface of the bolt hole (4). The overflow hole (6) is an array-distributed grid structure.

4. A municipal drainage pipe for easy filtration and sedimentation according to claim 3, characterized in that, The filter cover (5) is movably connected above the tube body (1). The filter cover (5) has rectangular filter holes on its surface, and the diameter of the filter cover (5) is half that of the overflow hole (6).

5. A municipal drainage pipe for easy filtration and sedimentation according to claim 4, characterized in that, The filter cover (5) is abutted against the flow guide filter (8) below. The flow guide filter (8) has holes evenly opened on its side. The tube body (1) is fixedly connected to the flow guide plate (7). There are two flow guide plates (7) symmetrically distributed. The flow guide plate (7) has an inverted figure-eight structure. The bottom of the flow guide plate (7) is connected to the sludge discharge pipe (2). The upper part of the flow guide plate (7) is 10 cm away from the lower surface of the flow guide filter (8). The flow guide plate (7) is 10 cm away from the bottom surface of the tube body (1) for water passage.

6. A municipal drainage pipe for easy filtration and sedimentation according to claim 5, characterized in that, The bottom of the overflow cavity (9) is connected to the drainage pipe (3) through the pipe body (1), and the pipe body (1), the overflow cavity (9) and the drainage pipe (3) form an F-shaped structure.

7. A municipal drainage pipe for easy filtration and sedimentation according to claim 6, characterized in that, The bottom of the guide plate (7) is connected to the pipe body (1), and the sludge discharge pipe (2) and the drainage pipe (3) are symmetrically distributed. The pipe body (1) at the outer position of the guide plate (7) has a guide hole (10), which is connected to the drainage pipe (3) and the overflow chamber (9).

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