An automatic cleaning anti-leakage municipal drainage device

By installing components such as interceptors and scrapers in municipal drainage equipment, the problem of pipe blockage caused by small impurities has been solved, achieving stable drainage, extending equipment life, and reducing operation and maintenance costs.

CN122106168APending Publication Date: 2026-05-29南通利元市政工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
南通利元市政工程有限公司
Filing Date
2026-03-10
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing rainwater axial flow pumping stations, fine impurities are discharged with the water, causing pipe blockage and limiting the use of water, which affects the stable operation and lifespan of the drainage system.

Method used

Auxiliary components such as interceptors, scrapers, and augers are installed in municipal drainage equipment to intercept, scrape, and discharge fine impurities, preventing them from entering subsequent drainage pipes, and allowing for centralized collection and regular cleaning.

Benefits of technology

It effectively prevents pipe blockage, ensures drainage flow capacity, extends equipment life, reduces operation and maintenance costs, and improves the level of automated operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an automatic cleaning anti-leakage municipal drainage equipment, and relates to the technical field of municipal drainage equipment. The equipment comprises a drainage assembly, a cylinder, a water inlet pipe and a water outlet pipe, and a broken frame fixed at the end of the water inlet pipe. An auxiliary assembly is arranged on one side of the broken frame and comprises an intercepting piece. The intercepting piece comprises a fixed frame fixed on one side of the broken frame, an intercepting net fixed on one side of the fixed frame, and a collecting frame fixed on one side of the fixed frame. The auxiliary assembly can filter and intercept the broken impurities and collect them, effectively intercepts the small impurities treated by the crushing mechanism, avoids the small impurities from entering the subsequent drainage pipeline with the water, prevents the small impurities from accumulating at the pipe bends and reducers, prevents the pipeline from being blocked, guarantees the stable drainage flow capacity, avoids the long-term impurities from washing the inner wall of the pipeline and the pipe fittings, reduces the wear of the components, and prolongs the service life of the drainage system.
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Description

Technical Field

[0001] This invention relates to the field of municipal drainage equipment technology, and in particular to an automatic cleaning and leak-proof municipal drainage equipment. Background Technology

[0002] Municipal drainage equipment is a core infrastructure that ensures the normal operation of urban flood control and drainage and rainwater pipe networks. Among them, rainwater axial flow pump stations are widely used in urban rainwater collection and lifting, waterlogging prevention and other scenarios due to their drainage characteristics of large flow and low head. They mainly collect rainwater into the cylinder through the inlet pipe, and then discharge it to the outside through the outlet after being pressurized by the pump body. They are key equipment for maintaining the smooth flow of urban drainage systems.

[0003] Existing axial flow rainwater pumping stations typically have a crushing mechanism at the inlet to break up debris such as plastic bags, twigs, and fibers mixed in with rainwater, thereby reducing equipment blockage caused by large impurities. However, this structure has significant drawbacks in practical use: the small impurities crushed by the crushing mechanism cannot be effectively intercepted and still enter the cylinder with the rainwater; during pumping operations, these small impurities are directly discharged outwards along with the effluent, easily accumulating at bends and diameter changes in subsequent drainage pipes, causing localized blockages over time, significantly reducing drainage capacity, and even leading to poor drainage; on the other hand, the direct discharge of impurities with the effluent affects subsequent use of the effluent or the environment of the external drainage body, and the long-term scouring of the pipe walls and related fittings by impurities accelerates component wear and shortens the service life of the drainage system. The existing structure can only crush large impurities and cannot solve the problems of pipe blockage and limited effluent use caused by the discharge of small impurities after crushing, making it difficult to meet the stable operation requirements of municipal drainage equipment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing automatic cleaning and leak-proof municipal drainage equipment, the present invention is proposed.

[0006] Therefore, the problem that this invention aims to solve is that fine impurities cause pipe blockage and limited water usage when discharged with the water, making it difficult to meet the stable operation requirements of municipal drainage equipment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic cleaning and seepage prevention municipal drainage device, which includes a drainage component, including a cylinder, wherein an inlet pipe and an outlet pipe are provided on the cylinder, and a breaking frame is fixed at the end of the inlet pipe; An auxiliary component, disposed on one side of the crushing frame, includes an interceptor, the interceptor including a fixed frame fixed to one side of the crushing frame, an interception net fixed to one side of the fixed frame, a collection frame fixed to one side of the fixed frame, and a scraper disposed inside the fixed frame; The auxiliary component also includes a discharge component, which includes a fixed cylinder fixed inside the collection frame, and an auger is provided inside the fixed cylinder.

[0008] As a preferred embodiment of the automatic cleaning and leak-proof municipal drainage equipment of the present invention, the auxiliary component further includes a baffle, which includes a baffle located inside the collection frame. A positioning frame is fixed inside the collection frame. The baffle is movably connected to the positioning frame. A first spring is fixed to the inner wall of the positioning frame. The other end of the first spring is fixed to the baffle. A push plate is hinged to one side of the scraper. A force-bearing rod is fixed to one side of the baffle.

[0009] As a preferred embodiment of the automatic cleaning and leak-proof municipal drainage equipment of the present invention, the auxiliary component further includes a movable component, the movable component including a movable block fixed to the bottom of the scraper, a reciprocating roller inserted in the movable block, a fixed shaft fixed in the movable block, the fixed shaft meshing with the reciprocating roller, a worm gear fixed at the end of the reciprocating roller, a motor fixed at the bottom of the collection frame, a worm fixed to the output shaft of the motor, and the worm meshing with the worm gear.

[0010] As a preferred embodiment of the automatic cleaning and seepage prevention municipal drainage equipment of the present invention, the auxiliary component further includes a transmission component, the transmission component includes a first pulley fixed to the outside of the auger, a second pulley rotatably connected to the outside of the motor output shaft, and the first pulley is connected to the second pulley via a belt.

[0011] As a preferred embodiment of the automatic cleaning and seepage prevention municipal drainage equipment of the present invention, wherein: a gear is sleeved on the outer side of the motor output shaft, a tooth groove is opened on the inner side of the second pulley, the gear cooperates with the tooth groove, a locking block is fixed on the outer side of the motor output shaft, a locking groove is opened on the inner side of the gear, and the locking block is movably connected with the locking groove.

[0012] As a preferred embodiment of the automatic cleaning and seepage prevention municipal drainage equipment of the present invention, wherein: a second spring is fixed to the bottom of the gear, a fixing plate is fixed to the outside of the motor output shaft, and the bottom end of the second spring is fixed to the fixing plate.

[0013] As a preferred embodiment of the automatic cleaning and leak-proof municipal drainage equipment of the present invention, the auxiliary component further includes a pushing component, the pushing component includes a support plate fixed to the bottom of the collection frame, a movable sleeve is inserted into the support plate, a rotating column is inserted into the movable sleeve, a pressing rod is fixed to the end of the rotating column, and a force-bearing plate is fixed to the bottom of the gear.

[0014] As a preferred embodiment of the automatic cleaning and leak-proof municipal drainage equipment of the present invention, wherein: a squeezing shaft is fixed on the movable sleeve, a guide groove and a reset groove are provided on the rotating column, the squeezing shaft slides in the guide groove, and a push rod is fixed on one side of the movable block.

[0015] As a preferred embodiment of the automatic cleaning and seepage prevention municipal drainage equipment of the present invention, wherein: a groove is provided on the rotating column, and a stop block is rotatably connected in the groove.

[0016] As a preferred embodiment of the automatic cleaning and seepage prevention municipal drainage equipment of the present invention, wherein: a positioning plate is fixed at the end of the movable sleeve, a positioning column is fixed on one side of the support plate, and the positioning column is movably connected to the positioning plate.

[0017] The beneficial effects of this invention are as follows: by setting up auxiliary components, impurities after crushing can be filtered and intercepted, and collected in a concentrated manner. This effectively intercepts small impurities after they have been processed by the crushing mechanism, preventing them from entering the subsequent drainage pipes with the effluent. It also prevents small impurities from accumulating at pipe bends and diameter changes from the source, thus preventing pipe blockage and ensuring stable drainage flow capacity. Furthermore, it avoids impurities from scouring the inner wall of the pipe and fittings for a long time, reducing component wear and extending the service life of the drainage system.

[0018] Once a specified amount of impurities is collected, they can be discharged outwards, preventing excessive accumulation of intercepted impurities on the filter components and avoiding clogging that could affect the pump station's water intake and drainage efficiency. This ensures the continuous and stable operation of the filtration and interception function. It also eliminates the need for frequent manual cleaning of impurities, reducing the labor intensity and maintenance costs for operation and maintenance personnel and improving the level of automation in the pump station. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A structural diagram of a municipal drainage system designed for automatic cleaning and leak prevention.

[0021] Figure 2 Cross-sectional structural diagram of the cylinder of a municipal drainage system designed for automatic cleaning and leak prevention.

[0022] Figure 3 A cross-sectional structural diagram of the fixed frame of a municipal drainage system designed for automatic cleaning and leak prevention.

[0023] Figure 4 A bottom view of the mounting frame and collection frame of a municipal drainage system designed for automatic cleaning and leak prevention.

[0024] Figure 5 For automatic cleaning and leak-proof municipal drainage equipment Figure 4 Enlarged view of the structure at point A in the middle.

[0025] Figure 6 For automatic cleaning and leak-proof municipal drainage equipment Figure 4 Enlarged view of the structure at point B in the middle.

[0026] Figure 7 A structural diagram of the transmission components for an automatic cleaning and leak-proof municipal drainage system.

[0027] Figure 8 A cross-sectional view of the pulley structure of a municipal drainage system designed for automatic cleaning and leak prevention.

[0028] Figure 9 Cross-sectional structural diagram of a mobile sleeve for an automatic cleaning and leak-proof municipal drainage system.

[0029] Figure 10 Cross-sectional structural diagram of the collection frame of a municipal drainage system designed for automatic cleaning and leak prevention. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, referring to Figures 1-4This is the first embodiment of the present invention. This embodiment provides an automatic cleaning and seepage prevention municipal drainage device. The automatic cleaning and seepage prevention municipal drainage device includes a drainage component 1, including a cylinder 11. The cylinder 11 is installed underground. The cylinder 11 is provided with an inlet pipe 12 and an outlet pipe 13. Rainwater enters the cylinder 11 through the inlet pipe 12 and is collected by the cylinder 11. A water pump is connected to the outlet pipe 13. When the water level inside the cylinder 11 is too high, the water pump will start and discharge the rainwater out through the outlet pipe 13. A crushing frame 14 is fixed to the end of the inlet pipe 12. The crushing frame 14 is provided with a crushing roller inside, which is used to crush large impurities in the rainwater. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0034] Auxiliary component 2, located on one side of the crushing frame 14, includes an interceptor 21. The interceptor 21 includes a fixed frame 211 fixed to one side of the crushing frame 14, and an interception net 212 fixed to one side of the fixed frame 211. The crushed impurities will enter the interior of the fixed frame 211 and be filtered and intercepted by the interception net 212, thereby preventing them from entering the subsequent drainage pipe with the outflow water. This prevents small impurities from accumulating at pipe bends and diameter changes from the source, preventing pipe blockage and ensuring stable drainage flow capacity.

[0035] A collection frame 213 is fixed to one side of the fixed frame 211. A feed inlet is opened on one side of the collection frame 213 and is connected to the fixed frame 211. A scraper 214 is provided inside the fixed frame 211. One side of the scraper 214 is in contact with the interception net 212. When the scraper 214 moves, it pushes the impurities intercepted by the interception net 212 into the collection frame 213 and collects the impurities through the collection frame 213, so as to avoid the impurities from clogging the interception net 212. The bottom of the collection frame 213 is hollow, and the water inside can be discharged downward.

[0036] A stabilizing column is fixed on one side of the scraper 214. The stabilizing column passes through the fixed frame 211 and is movably connected to the fixed frame 211. It is used to guide and position the scraper 214 to prevent the scraper 214 from shifting when it moves.

[0037] The auxiliary component 2 also includes a discharge component 22, which includes a fixed cylinder 221 fixed inside the collection frame 213. The top of the fixed cylinder 221 extends to the outside of the cylinder body 11. An auger 222 is installed inside the fixed cylinder 221. When the amount of impurities collected inside the collection frame 213 is too large, the auger 222 will rotate and discharge the impurities inside the collection frame 213 outward, thereby preventing the impurities inside the collection frame 213 from accumulating too much and flowing into the interception net 212, causing the interception net 212 to become blocked. Moreover, there is no need for frequent manual cleaning of impurities, which can reduce the labor intensity and maintenance cost of operation and maintenance personnel.

[0038] Example 2, refer to Figures 3-10 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, the auxiliary component 2 also includes a baffle 23, which includes a baffle 231 located inside the collection frame 213. The baffle 231 is used to block the feed inlet of the collection frame 213 to prevent impurities inside the collection frame 213 from flowing into the interception net 212. A positioning frame 232 is fixed inside the collection frame 213. The baffle 231 is movably connected to the positioning frame 232. The positioning frame 232 is used to support and position the baffle 231. A first spring 233 is fixed on the inner wall of the positioning frame 232. The other end of the first spring 233 is fixed to the baffle 23. The first spring 233 is used to apply a pushing force to the baffle 231 so that the baffle 231 is always in a closed state.

[0040] A push plate 234 is hinged to one side of the scraper 214, and a force rod 235 is fixed to one side of the baffle 231. The push plate 234 is inclined and connected to the scraper 214 through a torsion spring. The push plate 234 can be reset after rotation. When the scraper 214 moves to the position of the feed inlet, the push plate 234 will contact the force rod 235. As the scraper 214 moves, the push plate 234 will push the force rod 235 to move, and the force rod 235 will drive the baffle 231 to move, thereby separating the baffle 231 from the feed inlet and allowing impurities to enter the collection frame 213 through the feed inlet.

[0041] The auxiliary component 2 also includes a movable component 24, which includes a movable block 241 fixed to the bottom of the scraper 214. A through groove is opened at the bottom of the collection frame 213, and the movable block 241 is movably connected to the through groove. A reciprocating roller 242 is inserted into the movable block 241. A stabilizing frame is fixed at the bottom of the collection frame 213. The reciprocating roller 242 is rotatably connected to the stabilizing block through a bearing. A fixed shaft 243 is fixed in the movable block 241 and meshes with the reciprocating roller 242. A worm gear 244 is fixed at the end of the reciprocating roller 242. A motor 245 is fixed at the bottom of the collection frame 213. The motor 245 is a waterproof motor. A worm 246 is fixed on the output shaft of the motor 245 and meshes with the worm gear 244.

[0042] When the motor 245 starts, it drives the worm wheel 244 to rotate via the worm 246. The worm wheel 244 drives the reciprocating roller 242 to rotate. At this time, the fixed shaft 243 will drive the movable block 241 to move, and the movable block 241 will drive the scraper 214 to move back and forth, so that the scraper 214 can clean the interception net 212.

[0043] The auxiliary component 2 also includes a transmission component 25, which includes a first pulley 251 fixed to the outside of the auger 222. The first pulley 251 is fixed to the bottom end of the central rotating shaft of the auger 222. A second pulley 252 is rotatably connected to the outside of the output shaft of the motor 245. The first pulley 251 is connected to the second pulley 252 by a belt.

[0044] A gear 253 is sleeved on the outer side of the output shaft of the motor 245, and a toothed groove 252-1 is opened on the inner side of the second pulley 252. The gear 253 and the toothed groove 252-1 are engaged. When the gear 253 enters the inner side of the second pulley 252 and meshes with the toothed groove 252-1, the output shaft of the motor 245 can be connected to the second pulley 252 through the cooperation of the two. At this time, the second pulley 252 will rotate with the output shaft of the motor 245, and drive the first pulley 251 and the auger 222 to rotate through the belt, so that the auger 222 can discharge the collected impurities to the outside.

[0045] A locking block 254 is fixed on the outside of the output shaft of motor 245, and a slot 253-1 is opened on the inside of gear 253. The locking block 254 is movably connected to the slot 253-1. Through the cooperation of the two, gear 253 can rotate with the output shaft of motor 245 and can also move axially on the outside of the output shaft of motor 245.

[0046] A second spring 255 is fixed to the bottom of the gear 253, and a fixing plate 256 is fixed to the outside of the output shaft of the motor 245. The bottom end of the second spring 255 is fixed to the fixing plate 256. The second spring 255 applies a pulling force to the gear 253 so that it can separate from the tooth groove 252-1 when it loses the thrust.

[0047] Example 3, referring to Figures 7-9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0048] Specifically, the auxiliary component 2 also includes a pusher 26, which includes a support plate 261 fixed to the bottom of the collection frame 213. There are two support plates 261. A movable sleeve 262 is inserted into the support plate 261. A rotating column 263 is inserted into the movable sleeve 262. The rotating column 263 is rotatably connected to the other support plate 261. A pressing rod 264 is fixed to the end of the rotating column 263. A force-bearing plate 265 is fixed to the bottom of the gear 253.

[0049] A pressing shaft 266 is fixed on the movable sleeve 262. A guide groove 263-1 and a reset groove 263-2 are provided on the rotating column 263. The guide groove 263-1 is inclined, and the reset groove 263-2 is vertical. There are multiple reset grooves 263-1 and 263-2, which are evenly distributed in a ring on the outside of the rotating column 263. The two ends of the reset groove 263-2 are connected to two adjacent guide grooves 263-1. The pressing shaft 266 slides in the guide groove 263-1. A push rod 267 is fixed on one side of the movable block 241. A third spring is fixed on one end of the rotating column 263, and the other end of the third spring is in contact with the inner wall of the movable sleeve 262. When the movable block 241 moves to the position of the movable sleeve 262, it will push the movable sleeve 262 to move through the push rod 267. The movable sleeve 262 will drive the extrusion shaft 266 to move along the inclined surface of the inner wall of the guide groove 263-1. Through the cooperation of the two, the rotating column 263 will rotate. At this time, the rotating column 263 will drive the extrusion rod 264 to rotate. When the movable block 241 drives the push rod 267 to separate from the movable sleeve 262, the third spring will push the movable sleeve 262 to move in the opposite direction. At this time, the extrusion shaft 266 will move in the opposite direction along the reset groove 263-2 and enter another guide groove 263-1. With the repeated reciprocating movement of the movable block 241, the extrusion rod 264 will contact the force plate 265 and push the force plate 265 to move upward. This will cause the force plate 265 to drive the gear 253 to mesh with the tooth groove 252-1, thereby causing the auger 222 to rotate and discharge impurities outward.

[0050] When the auger 222 rotates for a certain period of time and discharges impurities, the continuous movement of the movable block 241 will cause the extrusion rod 264 to separate from the force plate 265, thereby allowing the gear 253 to separate from the tooth groove 252-1, thus avoiding unnecessary rotation of the auger 222.

[0051] The rotating column 263 has a groove 263-3, and a stop block 268 is rotatably connected in the groove 263-3. The stop block 268 is rotatably connected to the groove 263-3 via a rotating shaft. The stop block 268 can only rotate into the reset groove 263-2 and cannot rotate into the guide groove 263-1. The stop block 268 is used to guide the movement of the extrusion shaft 266, preventing the extrusion shaft 266 from moving into the reset groove 263-2 instead of the guide groove 263-1, which would prevent the rotating column 263 from rotating. The stop block 268 is also equipped with a torsion spring to reset the stop block 268 after rotation.

[0052] A positioning plate 269 is fixed to the end of the movable sleeve 262, and a positioning post 260 is fixed to one side of the support plate 261. The positioning post 260 is movably connected to the positioning plate 269. The two work together to guide and position the movable sleeve 262, so as to prevent the movable sleeve 262 from rotating when it moves.

[0053] During use, rainwater enters the cylinder 11 through the inlet pipe 12 and is collected by the cylinder 11. Large impurities in the rainwater are crushed by the crushing frame 14. The crushed impurities enter the fixed frame 211 and are filtered and intercepted by the interception net 212, thereby preventing them from entering the subsequent drainage pipe with the outflow water. This prevents small impurities from accumulating at pipe bends and diameter changes, preventing pipe blockage and ensuring stable drainage flow.

[0054] When the motor 245 starts, it drives the worm wheel 244 to rotate via the worm 246. The worm wheel 244 drives the reciprocating roller 242 to rotate. At this time, the fixed shaft 243 drives the movable block 241 to move, and the movable block 241 drives the scraper 214 to move back and forth, so that the scraper 214 can clean the interception net 212 and prevent impurities from clogging the interception net 212.

[0055] When the scraper 214 moves to the feed inlet, the pusher 234 will contact the force rod 235. As the scraper 214 moves, the pusher 234 will push the force rod 235 to move, and the force rod 235 will drive the baffle 231 to move, thereby separating the baffle 231 from the feed inlet and allowing impurities to enter the collection frame 213 through the feed inlet. The collection frame 213 collects the impurities, preventing the cleaned impurities from re-attaching to the interception net 212.

[0056] When the movable block 241 moves to the position of the movable sleeve 262, it will push the movable sleeve 262 to move via the push rod 267. The movable sleeve 262 will drive the extrusion shaft 266 to move along the inclined surface of the inner wall of the guide groove 263-1. Through the cooperation of the two, the rotating column 263 will rotate. At this time, the rotating column 263 will drive the extrusion rod 264 to rotate. When the movable block 241 drives the push rod 267 to separate from the movable sleeve 262, the third spring will push the movable sleeve 262 to move in the opposite direction. At this time, the extrusion shaft 266 will move in the opposite direction along the reset groove 263-2 and enter another guide groove 263-1. With the repeated reciprocating movement of the movable block 241, the extrusion rod 264 will interact with the force plate. The force plate 265 is pushed upward by contact with the gear 265, which in turn drives the gear 253 to mesh with the tooth groove 252-1. Through the cooperation of the two, the output shaft of the motor 245 can be connected to the second pulley 252. At this time, the second pulley 252 will rotate with the output shaft of the motor 245, and drive the first pulley 251 and the auger 222 to rotate through the belt, and discharge the impurities inside the collection frame 213 to the outside. This avoids the situation where too many impurities accumulate inside the collection frame 213 and flow into the interception net 212, causing the interception net 212 to be blocked. Moreover, there is no need for frequent manual cleaning of impurities, which can reduce the labor intensity and maintenance cost of operation and maintenance personnel.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic cleaning and leak-proof municipal drainage device, characterized in that: include, The drainage assembly (1) includes a cylinder (11), on which an inlet pipe (12) and an outlet pipe (13) are provided, and a crushing frame (14) is fixed at the end of the inlet pipe (12). An auxiliary component (2) is provided on one side of the crushing frame (14) and includes an interceptor (21). The interceptor (21) includes a fixed frame (211) fixed to one side of the crushing frame (14). An interceptor net (212) is fixed on one side of the fixed frame (211), and a collection frame (213) is fixed on one side of the fixed frame (211). A scraper (214) is provided inside the fixed frame (211). The auxiliary component (2) also includes a discharge component (22), which includes a fixed cylinder (221) fixed inside the collection frame (213), and an auger (222) is provided inside the fixed cylinder (221).

2. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 1, characterized in that: The auxiliary component (2) also includes a baffle (23), which includes a baffle (231) located inside the collection frame (213). A positioning frame (232) is fixed inside the collection frame (213). The baffle (231) is movably connected to the positioning frame (232). A first spring (233) is fixed to the inner wall of the positioning frame (232). The other end of the first spring (233) is fixed to the baffle (23). A push plate (234) is hinged to one side of the scraper (214). A force rod (235) is fixed to one side of the baffle (231).

3. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 2, characterized in that: The auxiliary component (2) further includes a movable part (24), which includes a movable block (241) fixed to the bottom of the scraper (214). A reciprocating roller (242) is inserted into the movable block (241), and a fixed shaft (243) is fixed inside the movable block (241). The fixed shaft (243) meshes with the reciprocating roller (242). A worm gear (244) is fixed at the end of the reciprocating roller (242). A motor (245) is fixed at the bottom of the collection frame (213), and a worm (246) is fixed on the output shaft of the motor (245). The worm (246) meshes with the worm gear (244).

4. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 3, characterized in that: The auxiliary component (2) also includes a transmission component (25), which includes a first pulley (251) fixed to the outside of the auger (222), and a second pulley (252) rotatably connected to the outside of the output shaft of the motor (245). The first pulley (251) is connected to the second pulley (252) via a belt.

5. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 4, characterized in that: A gear (253) is sleeved on the outer side of the output shaft of the motor (245), and a tooth groove (252-1) is opened on the inner side of the second pulley (252). The gear (253) cooperates with the tooth groove (252-1). A locking block (254) is fixed on the outer side of the output shaft of the motor (245), and a locking groove (253-1) is opened on the inner side of the gear (253). The locking block (254) is movably connected to the locking groove (253-1).

6. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 5, characterized in that: A second spring (255) is fixed to the bottom of the gear (253), and a fixing plate (256) is fixed to the outside of the output shaft of the motor (245). The bottom end of the second spring (255) is fixed to the fixing plate (256).

7. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 5 or 6, characterized in that: The auxiliary component (2) also includes a pusher (26), which includes a support plate (261) fixed to the bottom of the collection box (213), a movable sleeve (262) inserted into the support plate (261), a rotating column (263) inserted into the movable sleeve (262), a pressing rod (264) fixed to the end of the rotating column (263), and a force plate (265) fixed to the bottom of the gear (253).

8. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 7, characterized in that: The movable sleeve (262) is fixed with an extrusion shaft (266), and the rotating column (263) is provided with a guide groove (263-1) and a reset groove (263-2). The extrusion shaft (266) slides in the guide groove (263-1), and a push rod (267) is fixed on one side of the movable block (241).

9. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 8, characterized in that: The rotating column (263) has a groove (263-3) and a stop block (268) is rotatably connected in the groove (263-3).

10. The automatic cleaning and leak-proof municipal drainage equipment as described in claim 8 or 9, characterized in that: The movable sleeve (262) is fixed with a positioning plate (269) at one end, and a positioning post (260) is fixed on one side of the support plate (261). The positioning post (260) is movably connected to the positioning plate (269).