Municipal drainage system

Abstract

The invention relates to the technical field of municipal drainage, in particular to a municipal drainage system which comprises a pipeline assembly, a connecting assembly is fixedly connected to the right side of the lower end of the pipeline assembly, a rotating assembly is tightly attached to the right end of the connecting assembly, and a filtering assembly is fixedly connected to the right end of the rotating assembly. A pushing assembly is embedded in the inner side of the filtering assembly, the pipeline assembly comprises a fixing shell, the outer ring of the upper end of the fixing shell is fixedly connected with a fixing frame, and by arranging the rotating assembly, the filtering assembly and the pipeline assembly, the problem of impurity blockage is effectively solved, the drainage efficiency is improved, and the maintenance cost is reduced; impurities in a traditional system are prone to causing pipeline blockage, a partition plate and a blocking groove of a pipeline assembly of the equipment can preliminarily intercept large impurities, a filtering shell of a filtering assembly can deeply filter small impurities, a pushing assembly can conveniently clean the filtered impurities, the pipeline blockage situation is reduced, and the cleaning and maintaining difficulty and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal drainage, and in particular to a municipal drainage system. Background Art

[0002] Amidst accelerating urbanization, municipal drainage systems, as a crucial component of urban infrastructure, are crucial for the smooth functioning of cities and the quality of life of residents. However, traditional municipal drainage systems are increasingly facing numerous operational challenges. Rainwater and sewage are often contaminated with impurities such as branches, plastic bottles, and sand. Directly entering drainage pipes, these impurities can easily cause blockages, compromising drainage efficiency and increasing the difficulty and cost of subsequent cleaning and maintenance. Furthermore, traditional drainage pipes are often fixed in direction, making them difficult to flexibly adjust to meet actual drainage needs. This makes them less adaptable to complex drainage scenarios, such as temporary changes in drainage direction during flood season and adjustments to drainage routes in local areas.

[0003] In addition, the filtering components of some drainage systems have simple structures, poor filtering effects, and are difficult to clean impurities. After long-term use, the filtering capacity is prone to decline. In order to solve the above problems, improve the impurity interception ability, direction adjustment flexibility, filtering effect and stability of the connection between each component of the municipal drainage system, and meet the needs of modern cities for efficient and reliable drainage systems, this municipal drainage system with optimized structure and complete functions has been developed. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a municipal drainage system.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: it includes a pipeline assembly, a connecting assembly is fixedly connected to the right side of the lower end of the pipeline assembly, a rotating assembly is tightly fitted on the right end of the connecting assembly, a filter assembly is fixedly connected to the right end of the rotating assembly, and a pushing assembly is embedded in the inner side of the filter assembly.

[0006] Preferably, the pipeline assembly includes a fixed shell, the outer ring of the upper end of the fixed shell is fixedly connected to a fixed frame, an isolation plate is embedded in the inner side of the fixed frame, a plurality of blocking grooves are provided at the upper end of the isolation plate, an inner cavity is provided at the upper end of the fixed shell, and a conveying pipe is fixedly connected to the right side of the lower end of the fixed shell.

[0007] Preferably, the connecting assembly includes a connecting tube, the lower end of the connecting tube is fixedly connected to a fixing plate, an inner hole is opened at the outer right end of the connecting tube, the outer right end of the connecting tube is fixedly connected to a connecting frame, the upper end and the front and rear ends of the connecting frame are fixedly connected to connecting rods, the middle position of the front and rear ends of the connecting frame is fixedly connected to a support frame, a fixing hole is opened in the middle of the right side of the front and rear ends of the connecting frame, and a sealing frame is provided on the inner side of the connecting frame.

[0008] Preferably, the rotating assembly includes a rotating frame, a mounting ring is embedded in the upper left end of the rotating frame, fixing rings are provided at the front and rear ends of the rotating frame, the right end of the fixing ring is fixedly connected to the telescopic rod, the right end of the telescopic rod is fixedly connected to the connecting ring, a fixed shaft is provided on the inner side of the connecting ring, the right end of the rotating frame is fixedly connected to the cover plate through a fixing bolt, the right end of the cover plate is fixedly connected to a fixing pipe, and a hose is tightly sleeved on the outer side of the fixing pipe.

[0009] Preferably, the filter assembly includes a filter shell, the left end of the filter shell is fixedly connected to a reinforcement tube, the upper end of the filter shell is fixedly connected to a reinforcement frame, and an embedding groove is provided in the middle of the upper end of the reinforcement frame.

[0010] Preferably, the pushing assembly includes a rotating tube, an embedding hole is provided at the upper end of the rotating tube, and pushing plates are fixedly connected to the left and right ends of the outer side of the rotating tube.

[0011] Preferably, the barrier groove is rectangular and symmetrically arranged at the front and rear ends, and the gaps between multiple barrier grooves are the same. There are two isolation plates in total, and the right side of the lower end of the fixed shell is fixedly connected to the connecting pipe of the connecting assembly.

[0012] Preferably, the connecting rod is arranged in an L shape, a mounting hole is opened on the right side of the front end of the connecting rod, the right end of the connecting rod is slidingly connected to the mounting ring of the rotating frame in the rotating assembly, and the front and rear ends of the sealing frame are fixedly connected to the fixing holes provided in the connecting frame through fixing bolts.

[0013] Preferably, the fixed shaft passes through the connecting ring, and the fixed shaft is fixedly connected to the middle portion of the outer side of the connecting frame, and the fixed shaft is rotatably connected to the connecting ring.

[0014] Preferably, the push plate is made of a silica gel plate, and the lower end of the push plate is slidably connected to the inner side of the filter housing in the filter assembly.

[0015] The present invention has the following beneficial effects:

[0016] Compared with the existing technology, this municipal drainage system effectively solves the problem of impurity blockage through the setting of rotating components, filtering components and pipe components, improves drainage efficiency and reduces maintenance costs. Impurities in traditional systems can easily cause pipe blockage, while the isolation plates and barrier grooves of the pipe components of this equipment can initially intercept larger impurities, the filter shell of the filtering component can deeply filter fine impurities, and the pushing component can easily clean the filtered impurities, reducing pipe blockage and reducing the difficulty and cost of cleaning and maintenance.

[0017] Compared with the existing technology, this municipal drainage system enhances the flexibility of drainage direction adjustment and improves system adaptability by setting up rotating components and connecting components. Traditional drainage pipes are fixed in direction and difficult to cope with complex scenarios. The rotating frame of the rotating component of this equipment can rotate around a fixed axis, and cooperate with the sliding of the mounting ring on the connecting rod and the extension and retraction of the telescopic rod to flexibly adjust the drainage direction. It can well adapt to complex drainage scenarios such as changes in drainage direction during flood season and adjustments to drainage paths in local areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the overall structure of the explosion part of the connection assembly of the present invention

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A;

[0021] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at B;

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at C;

[0023] Legend:

[0024] 1. Pipe assembly; 101. Fixed shell; 102. Fixed frame; 103. Isolation plate; 104. Blocking groove; 105. Inner cavity; 106. Delivery pipe;

[0025] 2. Connecting assembly; 201. Connecting pipe; 202. Fixing plate; 203. Inner hole; 204. Connecting frame; 205. Connecting rod; 206. Mounting hole; 207. Support frame; 208. Fixing hole; 209. Sealing frame;

[0026] 3. Rotating assembly; 301. Rotating frame; 302. Mounting ring; 303. Fixing ring; 304. Telescopic rod; 305. Connecting ring; 306. Fixed shaft; 307. Cover plate; 308. Fixing tube; 309. Hose;

[0027] 4. Filter assembly; 401. Filter housing; 402. Reinforcement tube; 403. Sealing frame; 404. Embedded groove;

[0028] 5. Pushing assembly; 501. Rotating tube; 502. Embedding hole; 503. Pushing plate. DETAILED DESCRIPTION

[0029] Reference Figure 1-5 The present invention provides a municipal drainage system: it includes a pipe component 1, a connecting component 2 is fixedly connected to the right side of the lower end of the pipe component 1, a rotating component 3 is tightly fitted on the right end of the connecting component 2, a filter component 4 is fixedly connected to the right end of the rotating component 3, and a pushing component 5 is embedded in the inner side of the filter component 4.

[0030] As a further implementation plan for the above technical solution: it clarifies the overall composition of the municipal drainage system and the connection relationship of the main components (pipe component 1, connection component 2, rotation component 3, filter component 4, push component 5), laying the foundation for the structural construction of the entire system, making the position and connection method of each component clear at a glance.

[0031] Preferably, the pipeline assembly 1 includes a fixed shell 101, the outer ring of the upper end of the fixed shell 101 is fixedly connected to a fixed frame 102, an isolation plate 103 is embedded in the inner side of the fixed frame 102, a plurality of blocking grooves 104 are provided at the upper end of the isolation plate 103, an inner cavity 105 is provided at the upper end of the fixed shell 101, and a delivery pipe 106 is fixedly connected to the right side of the lower end of the fixed shell 101.

[0032] As a further implementation plan of the above technical solution: the isolation plate 103 and the barrier groove 104 thereon can initially block larger impurities in the drainage, preventing the impurities from directly entering the subsequent components and causing blockage; the inner cavity 105 provides a circulation space for drainage, and the delivery pipe 106 realizes the connection with the connecting component 2 to ensure smooth delivery of drainage. After rainwater or sewage enters the inner cavity 105 of the fixed shell 101, during the flow process, larger impurities will be blocked by the barrier groove 104 on the isolation plate 103, and the water will flow downward through the barrier groove 104 and the inner cavity 105, and finally delivered to the connecting component 2 through the delivery pipe 106.

[0033] Preferably, the connecting assembly 2 includes a connecting tube 201, the lower end of the connecting tube 201 is fixedly connected to a fixing plate 202, an outer right end of the connecting tube 201 is provided with an inner hole 203, the outer right end of the connecting tube 201 is fixedly connected to a connecting frame 204, the upper front and rear ends of the connecting frame 204 are fixedly connected to connecting rods 205, the middle position of the front and rear ends of the connecting frame 204 is fixedly connected to a support frame 207, a fixing hole 208 is provided in the middle of the right side of the front and rear ends of the connecting frame 204, and a sealing frame 209 is provided on the inner side of the connecting frame 204.

[0034] As a further implementation plan of the above technical solution: the fixing plate 202 can fix the connecting pipe 201 in the corresponding position to enhance the stability of the connecting component 2; the connecting frame 204, the connecting rod 205, the support frame 207 and other structures cooperate with each other to improve the firmness of the connection between the connecting component 2 and the rotating component 3; the sealing frame 209 further strengthens the structural strength of the connecting frame 204, and the inner hole 203 may provide space for the installation or connection of related components. The water transported from the pipeline component 1 enters the connecting pipe 201 and is transported to the right through the connecting pipe 201 to the rotating component 3. During this process, the various structures of the connecting component 2 remain relatively stationary, mainly playing the role of connecting and transporting water.

[0035] Preferably, the rotating assembly 3 includes a rotating frame 301, a mounting ring 302 is embedded in the upper left end of the rotating frame 301, and a fixing ring 303 is provided at both the front and rear ends of the rotating frame 301. The right end of the fixing ring 303 is fixedly connected to the telescopic rod 304, and the right end of the telescopic rod 304 is fixedly connected to the connecting ring 305. A fixed shaft 306 is provided on the inner side of the connecting ring 305. The right end of the rotating frame 301 is fixedly connected to the cover plate 307 through a fixing bolt, and the right end of the cover plate 307 is fixedly connected to the fixing tube 308. The outer side of the fixing tube 308 is tightly sleeved with a hose 309.

[0036] As a further implementation of the above technical solution: the structure of the rotating component 3 is introduced. The mounting ring 302 is slidably connected to the connecting rod 205 of the connecting component 2 to facilitate the rotation of the rotating frame 301; the fixing ring 303, the telescopic rod 304, the connecting ring 305 and the fixed shaft 306 cooperate with each other to enable the rotating frame 301 to rotate around the fixed shaft 306 to adjust the angle, which is convenient for changing the drainage direction according to actual conditions; the cover plate 307 is connected to the rotating frame 301 by a fixing bolt, which is convenient for disassembly and maintenance; the setting of the fixed pipe 308 and the hose 309 can flexibly adapt to changes in the drainage direction and ensure the continuity of drainage. When the drainage direction needs to be adjusted, the rotating frame 301 can rotate around the fixed shaft 306. At this time, the mounting ring 302 slides on the connecting rod 205, and the telescopic rod 304 is extended and retracted to adapt to the angle change of the rotating frame 301. After water enters the rotating frame 301 from the connecting component 2, it is transported to the filter assembly 4 through the cover plate 307, the fixed pipe 308 and the hose 309.

[0037] Preferably, the filter assembly 4 includes a filter shell 401, the left end of the filter shell 401 is fixedly connected to a reinforcement tube 402, the upper end of the filter shell 401 is fixedly connected to a reinforcement frame 403, and an embedding groove 404 is opened in the middle of the upper end of the reinforcement frame 403.

[0038] As a further implementation plan of the above technical solution: the reinforcement tube 402 enhances the firmness of the connection between the filter housing 401 and the rotating assembly 3; the sealing frame 209 improves the structural strength of the filter housing 401, and the filter housing 401 provides space for water filtering. Water enters the filter housing 401 from the rotating assembly 3 and is filtered inside the filter housing 401. The various structures of the filter assembly 4 remain relatively stationary during this process, mainly serving the purpose of accommodating and filtering water.

[0039] Preferably, the pushing assembly 5 includes a rotating tube 501 , an embedding hole 502 is provided at the upper end of the rotating tube 501 , and pushing plates 503 are fixedly connected to the left and right ends of the outer side of the rotating tube 501 .

[0040] As a further implementation plan of the above technical solution: the rotating tube 501 can drive the pushing plate 503 to rotate. The pushing plate 503 is made of a silicone plate, which is soft and has a certain elasticity. During the pushing process, it can effectively push impurities without damaging the inner side of the filter shell 401. The embedded hole 502 may provide an operating point for the rotation of the pushing component 5 or connect with other components. When impurities accumulate in the filter component 4, the impurities flow inside and water can be discharged through the lower end of the filter shell 401, and the lower end of the filter shell 401 is set to a high-density filter mesh state.

[0041] Preferably, the barrier groove 104 is rectangular and symmetrically arranged at the front and rear ends, and the gaps between multiple barrier grooves 104 are the same. There are two isolation plates 103, and the right side of the lower end of the fixed shell 101 is fixedly connected to the connecting pipe 201 of the connecting component 2.

[0042] As a further implementation plan for the above technical solution: the shape and distribution of the blocking grooves 104 and the number of isolation plates 103 are further clarified. The blocking grooves 104, which are rectangular and symmetrically arranged at the front and rear ends, can more effectively block impurities. Multiple blocking grooves 104 with the same gaps ensure the uniformity of drainage; the two isolation plates 103 can enhance the effect of preliminary blocking impurities and improve the protection of subsequent components. At the same time, the fixed relationship between the fixed shell 101 and the connecting pipe 201 of the connecting component 2 is clarified. The symmetrical blocking grooves 104 on the two isolation plates 103 jointly perform preliminary filtration of impurities in the water. After passing through the blocking grooves 104, the water enters the connecting pipe 201 through the connection part of the lower right side of the fixed shell 101 and the connecting pipe 201.

[0043] Preferably, the connecting rod 205 is arranged in an L shape, and a mounting hole 206 is opened on the right side of the front end of the connecting rod 205. The right end of the connecting rod 205 is slidingly connected to the mounting ring 302 of the rotating frame 301 in the rotating assembly 3, and the front and rear ends of the sealing frame 209 are fixedly connected to the fixing hole 208 provided on the connecting frame 204 through a fixing bolt.

[0044] As a further implementation plan of the above technical solution: the shape of the connecting rod 205, the setting of the mounting hole 206, and the connection relationship between the connecting rod 205 and the mounting ring 302, and the sealing frame 209 and the connecting frame 204 are refined. The L-shaped connecting rod 205 is convenient for connection and sliding with the mounting ring 302; the mounting hole 206 provides a position for the installation of related fixed components; the sealing frame 209 and the connecting frame 204 are fixedly connected by a fixing bolt, which further enhances the stability of the connecting frame 204 and ensures the reliability of the connection between the connecting component 2 and the rotating component 3. When the rotating component 3 rotates, the connecting rod 205 and the mounting ring 302 slide relative to each other, and the other structures remain fixed, ensuring that the connection between the connecting component 2 and the rotating component 3 is stable and does not affect the water transportation.

[0045] Preferably, the fixed shaft 306 passes through the connecting ring 305 , and the fixed shaft 306 is fixedly connected to the middle portion of the outer side of the connecting frame 204 , and the fixed shaft 306 is rotatably connected to the connecting ring 305 .

[0046] As a further implementation plan of the above technical solution: the fixed shaft 306 passes through the connecting ring 305 and is fixedly connected to the connecting frame 204, and is also rotatably connected to the connecting ring 305. This structural design ensures that the rotating frame 301 can stably rotate around the fixed shaft 306, providing reliable support and rotation center for the angle adjustment of the rotating component 3. When the rotating frame 301 rotates, the connecting ring 305 rotates around the fixed shaft 306, and the fixed shaft 306 is fixed on the connecting frame 204 and remains stationary, thereby realizing stable rotation of the rotating frame 301 and ensuring smooth drainage direction adjustment process.

[0047] Preferably, the pushing plate 503 is made of a silica gel plate, and the lower end of the pushing plate 503 is slidably connected to the inner side of the filter housing 401 in the filter assembly 4 .

[0048] As a further implementation plan of the above technical solution: the push plate 503 composed of a silicone plate has good flexibility and wear resistance, can fit tightly against the inner side of the filter shell 401, effectively pushes impurities, and avoids scratching the filter shell 401; the sliding connection between the push plate 503 and the inner side of the filter shell 401 ensures the smooth operation of the push component 5, and facilitates the cleaning of filtered impurities. In the movement process of the push component 5 in claim 6, the push plate 503 slides on the inner side of the filter shell 401 driven by the rotating tube 501 to clean impurities.

[0049] Working principle:

[0050] When using the present invention, the isolation plate 103 embedded inside and the multiple rectangular barrier grooves 104 opened on the upper end of the isolation plate 103 will effectively intercept larger impurities such as branches and plastic bottles in the water, preventing these impurities from directly entering the subsequent pipelines and causing blockages. The water that has undergone preliminary filtration will smoothly pass through the barrier grooves 104, flow downward along the inner cavity 105, and finally pass through the delivery pipe 106 on the right side of the lower end of the fixed shell 101, and smoothly merge into the connecting pipe 201 of the connecting assembly 2. The water flow entering the connecting pipe 201 continues to be transported to the right. The fixed plate 202 at the lower end of the connecting pipe 201 firmly fixes it to the basic structure such as the ground or wall, ensuring the stability of the water delivery process. The connecting frame 204 at the right end of the outer side of the connecting pipe 201 cooperates with the connecting rods 205 at the front and rear ends and the support frame 207 on the middle side. , forming a stable supporting structure, providing reliable support for the connection with the rotating component 3, and the sealing frame 209 inside the connecting frame 204 further strengthens the load-bearing capacity of the connecting frame 204, ensuring that the connection part will not be loose when the water flow is transported, and the water flow then enters the rotating component 3. When the direction needs to be adjusted according to the drainage scene, the rotating frame 301 can be flexibly rotated around the fixed axis 306 passing through the connecting ring 305. At this time, the mounting ring 302 on the upper left end of the rotating frame 301 will slide smoothly on the connecting rod 205, and the fixing ring 303 will be on the right. The telescopic rod 304 at the end will expand and contract synchronously with the rotation angle, cleverly adapting to the position change of the rotating frame 301 to avoid structural jamming. After the water flows through the rotating frame 301, it enters the fixed pipe 308 through the cover plate 307 connected to the rotating frame 301 through the fixing bolt, and then passes through the hose 309 tightly sleeved on the outside of the fixed pipe 308 to flexibly transport it to the filter shell 401 of the filter assembly 4 for deep filtration. The left end of the filter shell 401 is firmly connected to the hose 309 through the reinforcement pipe 402, and the reinforcement frame 403 at the upper end enhances its own structural strength and can withstand Under the pressure brought by the impact of water flow and accumulation of impurities, when the water flows slowly in the filter shell 401, fine sand, silt and other impurities in the water will be intercepted in the shell. The impact force of the water flow can drive the silicone push plates 503 fixed at the left and right ends of its outer side to slide gently and tightly on the inside of the filter shell 401 (the silicone material can ensure the pushing effect without scratching the inner wall of the filter shell 401), and push the precipitated impurities to the specific cleaning port position in the shell for subsequent rapid removal, thereby efficiently completing the entire drainage and impurity treatment cycle.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A municipal drainage system comprising a pipe assembly (1), characterized in that: The right side of the lower end of the pipe assembly (1) is fixedly connected to a connecting assembly (2), the right end of the connecting assembly (2) is tightly fitted with a rotating assembly (3), the right end of the rotating assembly (3) is fixedly connected to a filtering assembly (4), and a pushing assembly (5) is embedded inside the filtering assembly (4).

2. A municipal drainage system according to claim 1, characterized in that: The pipeline assembly (1) comprises a fixed shell (101), the outer ring of the upper end of the fixed shell (101) is fixedly connected to a fixed frame (102), an isolation plate (103) is embedded in the inner side of the fixed frame (102), a plurality of blocking grooves (104) are provided at the upper end of the isolation plate (103), an inner cavity (105) is provided at the upper end of the fixed shell (101), and a delivery pipe (106) is fixedly connected to the right side of the lower end of the fixed shell (101).

3. A municipal drainage system according to claim 1, characterized in that: The connecting assembly (2) comprises a connecting tube (201), the lower end of the connecting tube (201) is fixedly connected to a fixing plate (202), the outer right end of the connecting tube (201) is provided with an inner hole (203), the outer right end of the connecting tube (201) is fixedly connected to a connecting frame (204), the upper front and rear ends of the connecting frame (204) are both fixedly connected to connecting rods (205), the middle positions of the front and rear ends of the connecting frame (204) are fixedly connected to a supporting frame (207), the middle portions of the right sides of the front and rear ends of the connecting frame (204) are provided with fixing holes (208), and the inner side of the connecting frame (204) is provided with a sealing frame (209).

4. A municipal drainage system according to claim 1, characterized in that: The rotating assembly (3) includes a rotating frame (301), a mounting ring (302) is embedded in the upper left end of the rotating frame (301), and fixing rings (303) are provided at both the front and rear ends of the rotating frame (301). The right end of the fixing ring (303) is fixedly connected to a telescopic rod (304), and the right end of the telescopic rod (304) is fixedly connected to a connecting ring (305). A fixed shaft (306) is provided on the inner side of the connecting ring (305). The right end of the rotating frame (301) is fixedly connected to a cover plate (307) through a fixing bolt. The right end of the cover plate (307) is fixedly connected to a fixing pipe (308), and the outer side of the fixing pipe (308) is tightly sleeved with a hose (309).

5. The municipal drainage system according to claim 1, characterized in that: The filter assembly (4) comprises a filter housing (401), the left end of the filter housing (401) is fixedly connected to a reinforcement pipe (402), the upper end of the filter housing (401) is fixedly connected to a reinforcement frame (403), and an embedding groove (404) is provided in the middle of the upper end of the reinforcement frame (403).

6. The municipal drainage system according to claim 1, characterized in that: The pushing assembly (5) comprises a rotating tube (501), an embedding hole (502) is provided at the upper end of the rotating tube (501), and pushing plates (503) are fixedly connected to the left and right ends of the outer side of the rotating tube (501).

7. A municipal drainage system according to claim 2, characterized in that: The blocking groove (104) is rectangular and symmetrically arranged at the front and rear ends, and the gaps between the multiple blocking grooves (104) are the same. There are two isolation plates (103) in total. The right side of the lower end of the fixed shell (101) is fixedly connected to the connecting pipe (201) of the connecting assembly (2).

8. The municipal drainage system according to claim 3, characterized in that: The connecting rod (205) is arranged in an L-shape, and a mounting hole (206) is provided on the right side of the front end of the connecting rod (205). The right end of the connecting rod (205) is slidably connected to the mounting ring (302) of the rotating frame (301) in the rotating assembly (3), and the front and rear ends of the sealing frame (209) are fixedly connected to the fixing holes (208) provided in the connecting frame (204) through fixing bolts.

9. The municipal drainage system according to claim 4, characterized in that: The fixed shaft (306) passes through the connecting ring (305), and the fixed shaft (306) is fixedly connected to the middle portion of the outer side of the connecting frame (204), and the fixed shaft (306) is rotatably connected to the connecting ring (305).

10. The municipal drainage system according to claim 6, characterized in that: The pushing plate (503) is made of a silica gel plate, and the lower end of the pushing plate (503) is slidably connected to the inner side of the filter housing (401) in the filter assembly (4).

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