A sewage treatment type rainwater well structure based on prefabricated well ring and its construction method

Abstract

This invention relates to the field of wastewater treatment, and provides a wastewater treatment rainwater well structure and construction method based on a prefabricated well ring. The well includes a well shaft, a prefabricated well ring, and a well cover. The prefabricated well ring is fixed to the well shaft, and the well cover is placed on the prefabricated well ring. A top seat is fixed to the top wall of the well cover, and a seat cavity is formed on the top seat. A cylinder and a rack are fixed to the inner wall of the seat cavity. A push block is fixed to the piston rod of the cylinder, and a block cavity is formed on the push block. A lifting plate is slidably connected to the block cavity, and a debris removal plate and a rack are fixed to the lifting plate. A gear is rotatably connected to the inner wall of the block cavity, and the rack meshes with the gear. A mounting hole is formed on the well cover, and a filter plate is rotatably connected to the inner wall of the mounting hole via a self-resetting shaft. The filter plate has filter holes and locking grooves. A limit assembly is connected to the well cover, and an oil separator is detachably connected to the inner wall of the well shaft. This invention, by setting up a filter plate and an oil separator, can effectively filter impurities and oily pollutants carried in rainwater.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment rainwater well structure and construction method based on a prefabricated well ring. Background Technology

[0002] A storm drain is an underground structure installed in urban roads or squares, primarily to collect and drain surface rainwater, preventing water accumulation from impacting traffic and the environment. Traditional storm drains typically consist of a well casing, a well ring, and a well cover, with the bottom connected to the urban drainage network, using gravity to guide surface water into the drainage system.

[0003] However, in practical applications, surface rainwater often carries a large amount of debris, such as fallen leaves, silt, and plastic waste. After entering the rainwater well, these debris can easily accumulate at the bottom of the well or clog the drainage pipes, leading to poor drainage, backflow, or water accumulation, which seriously affects the normal operation of the drainage system and the efficiency of urban flood control. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention aims to provide a wastewater treatment-type rainwater well structure and construction method based on prefabricated well rings. To solve these problems, this invention employs the following technical solution:

[0005] A sewage treatment rainwater well structure based on a prefabricated well ring includes a well shaft, a prefabricated well ring, and a well cover. The prefabricated well ring is fixed to the well shaft, and the well cover is placed on the prefabricated well ring. A top seat is fixed to the top wall of the well cover, and a seat cavity is opened on the top seat. A cylinder and a rack are fixed to the inner wall of the seat cavity. A push block is fixed to the piston rod of the cylinder, and a block cavity is opened on the push block. A lifting plate is slidably connected to the block cavity. A debris removal plate and a rack are fixed to the lifting plate. A gear is rotatably connected to the inner wall of the block cavity, and the rack meshes with the gear. A plate mounting hole is opened on the well cover, and a filter plate is rotatably connected to the inner wall of the plate mounting hole through a self-resetting rotating shaft. The filter plate has filter water holes and a locking groove. A limit component is connected to the well cover, and the limit component extends into the locking groove to limit the filter plate. An oil separator is detachably connected to the inner wall of the well shaft.

[0006] Preferably, the manhole cover has a transmission groove, and the limiting component includes an extension piece, a limiting rod, and a spring. The limiting rod is slidably connected to the inner wall of the transmission groove, the extension piece and the limiting rod are fixedly connected, the extension piece extends into the seat cavity, the extension piece is connected to the inner wall of the transmission groove through the spring, and the limiting rod extends into the locking groove to limit the filter plate.

[0007] Preferably, the manhole cover is equipped with a fragrance release component.

[0008] Preferably, the fragrance releasing component includes a connecting frame and a net box. The connecting frame is fixed to the manhole cover, and the net box is detachably connected to the connecting frame. The net box has a cavity, which is connected to the outer wall of the net box through a chip inlet hole. Fragrance chips are placed on the inner wall of the cavity.

[0009] Preferably, a second gear is rotatably connected to the inner wall of the transmission groove, extending into the seat cavity. A fourth rack and a connecting rod are slidably connected to the inner wall of the transmission groove, fixedly connected to the fourth rack and the connecting rod, meshing with the second gear. The lower end of the connecting rod extends below the manhole cover, and a conveying plate is fixedly connected to the lower end of the connecting rod. A storage box is detachably connected to the manhole cover, and the storage box has interconnected storage cavities and a conveying channel. The conveying channel connects two opposite outer walls of the storage box. The conveying plate is slidably connected to the inner wall of the conveying channel. Two or more spare incense chips are stacked in the storage cavity. A baffle is rotatably connected to the outer wall of the storage box.

[0010] Preferably, the filter water holes have two or more openings, and the impurity removal plate has two or more openings.

[0011] Preferably, the bottom wall of the infeed hole is inclined.

[0012] Preferably, the top seat has a first inclined surface, and the push block has a second inclined surface.

[0013] Preferably, the top wall of the cage is convex from the periphery to the center.

[0014] A construction method for a sewage treatment rainwater well structure based on a prefabricated well ring is provided for the construction of the rainwater well structure, comprising the following steps: excavating a well site pit, ensuring that the bottom of the pit is flat and stable, placing the well cylinder vertically at the bottom of the pit and correcting its position, pouring concrete on the outer wall of the well cylinder, fixing the prefabricated well ring to the well cylinder, and placing the well cover on the prefabricated well ring.

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

[0016] By setting up filter plates, filter holes, and limiting components, larger debris in rainwater is initially intercepted, preventing it from directly entering the well shaft, thus improving the efficiency of primary rainwater filtration and effectively reducing the risk of drainage system blockage.

[0017] The debris removal plate and the lifting plate work together. Driven by gear one, rack one and rack two, they can periodically clean debris inside and outside the filter holes, ensuring unobstructed drainage channels, reducing the frequency of manual sludge removal, and improving maintenance convenience.

[0018] The oil separator installed inside the well can effectively separate oily pollutants carried in rainwater, preventing oily impurities from accumulating at the bottom of the well or entering the pipeline system, thus improving the quality of drainage water and extending the service life of downstream treatment facilities. Attached Figure Description

[0019] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a sewage treatment rainwater well structure based on a prefabricated well ring according to the present invention;

[0021] Figure 2 This is the present invention. Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is the present invention. Figure 2 Schematic diagram of the middle filter plate;

[0023] Figure 4 This is the present invention. Figure 2 Schematic diagram of the structure of the storage box;

[0024] Figure 5 This is the present invention. Figure 1 Schematic diagram of the lifting plate and the impurity removal plate;

[0025] Figure 6 This is the present invention. Figure 1 A schematic diagram of the structure of the top seat and filter plate.

[0026] Reference numerals: 1. Wellbore; 2. Precast well ring; 3. Well cover; 4. Top seat; 5. Oil separator; 6. Rack 1; 7. Cylinder; 8. Seat cavity; 9. Push block; 10. Block cavity; 11. Lifting plate; 12. Debris removal plate; 13. Rack 2; 14. Gear 1; 15. Self-resetting shaft; 16. Filter plate; 17. Filter water hole; 18. Plate mounting hole; 19. Locking groove; 20. Transmission groove; 21. Extension plate; 22. Limiting rod; 23. Spring; 24. Rack 3; 25. Gear 2; 26. Rack 4; 27. Connecting rod; 28. Conveyor plate; 29. ​​Storage box; 30. Conveying channel; 31. Storage cavity; 32. Baffle plate; 33. Mesh box; 34. Plate inlet hole; 35. Box cavity; 36. Connecting frame; 37. Scented plate. Detailed Implementation

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] like Figures 1-3 , Figures 5-6 As shown, a sewage treatment rainwater well structure based on a prefabricated well ring includes a well cylinder 1, a prefabricated well ring 2, and a well cover 3. The prefabricated well ring 2 is fixed to the well cylinder 1, and the well cover 3 is placed on the prefabricated well ring 2. A top seat 4 is fixed to the top wall of the well cover 3, and a seat cavity 8 is opened on the top seat 4. A cylinder 7 and a rack 6 are fixed to the inner wall of the seat cavity 8. A push block 9 is fixed to the piston rod of the cylinder 7, and a block cavity 10 is opened on the push block 9. A lifting plate 11 is slidably connected to the block cavity 10, and a lifting plate 11 is fixed to the lifting plate 11. There is a debris removal plate 12 and a rack 13. The inner wall of the block cavity 10 is rotatably connected to a gear 14. The rack 13 and the gear 14 mesh. The well cover 3 has a plate mounting hole 18. The inner wall of the plate mounting hole 18 is rotatably connected to a filter plate 16 through a self-resetting shaft 15. The filter plate 16 has filter water holes 17 and a locking groove 19. The well cover 3 is connected to a limit component. The limit component extends into the locking groove 19 to limit the filter plate 16. The inner wall of the well barrel 1 is detachably connected to an oil separator 5.

[0031] Cylinder 7 can be a waterproof cylinder, the self-resetting function of self-resetting shaft 15 can be achieved by elastic element, and filter plate 16 and oil separator 5 can filter large impurities and grease.

[0032] like Figures 1-3 , Figure 5As shown, in an optional embodiment of the present invention, the manhole cover 3 is provided with a transmission groove 20, and the limiting assembly includes an extension piece 21, a limiting rod 22 and a spring 23. The limiting rod 22 is slidably connected to the inner wall of the transmission groove 20, the extension piece 21 and the limiting rod 22 are fixedly connected, the extension piece 21 extends into the seat cavity 8, the extension piece 21 is connected to the inner wall of the transmission groove 20 through the spring 23, and the limiting rod 22 extends into the locking groove 19 to limit the filter plate 16.

[0033] The limiting rod 22 can prevent the filter plate 16 from moving, and the filter plate 16 can rotate after the limiting rod 22 moves.

[0034] like Figures 1-2 , Figure 4 As shown, in an optional embodiment of the present invention, a fragrance releasing component is connected to the manhole cover 3, which is used to mask odors.

[0035] like Figures 1-2 , Figure 4 As shown, in an optional embodiment of the present invention, the fragrance releasing assembly includes a connecting frame 36 and a mesh box 33. The connecting frame 36 is fixedly connected to the manhole cover 3, and the mesh box 33 is detachably connected to the connecting frame 36. The mesh box 33 has a cavity 35, which communicates with the outer wall of the mesh box 33 through a plate inlet 34. A fragrance plate 37 is placed on the inner wall of the cavity 35. The fragrance plate 37 can be an activated charcoal fragrance plate. Activated charcoal fragrance plates made by mixing activated charcoal and fragrance can not only absorb odors but also release fragrance. Of course, the fragrance plate 37 can be made of other materials.

[0036] like Figures 1-2 , Figure 4 As shown, in an optional embodiment of the present invention, a gear 25 is rotatably connected to the inner wall of the transmission groove 20, and the gear 25 extends into the seat cavity 8. A rack 26 and a connecting rod 27 are slidably connected to the inner wall of the transmission groove 20. The rack 26 and the connecting rod 27 are fixedly connected, and the rack 26 and the gear 25 mesh. The lower end of the connecting rod 27 extends to the bottom of the manhole cover 3, and a conveying plate 28 is fixedly connected to the lower end of the connecting rod 27. A storage box 29 is detachably connected to the manhole cover 3. The storage box 29 has a storage cavity 31 and a conveying channel 30 that are interconnected. The conveying channel 30 connects two opposite outer walls of the storage box 29. The conveying plate 28 is slidably connected to the inner wall of the conveying channel 30. Two or more spare incense chips 37 are stacked in the storage cavity 31. A baffle 32 is rotatably connected to the outer wall of the storage box 29.

[0037] like Figure 3 As shown, in an optional embodiment of the present invention, the filter water holes 17 are provided in two or more forms to improve drainage efficiency, and the impurity removal plates 12 are provided in two or more forms.

[0038] like Figure 2 As shown, in an optional embodiment of the present invention, the bottom wall of the inlet hole 34 is inclined so that the incense sachet 37 can slide into the box cavity 35.

[0039] like Figure 2 As shown, in an optional embodiment of the present invention, the top seat 4 is provided with a first inclined surface and the push block 9 is provided with a second inclined surface, so as to facilitate the passage of vehicles and reduce the damage of the top seat 4 to the wheels.

[0040] like Figure 2 As shown, in an optional embodiment of the present invention, the top wall of the cage 33 is convex from the periphery to the center to facilitate the falling of impurities and reduce the accumulation of impurities on the cage 33.

[0041] Implementation process:

[0042] When it is not raining, the fragrance tablet 37 will emit a fragrance to mask the odor emanating from the manhole 1, thereby reducing the stench near the manhole 1 and improving the comfort of pedestrians.

[0043] When the fragrance chips 37 are consumed, and new fragrance chips 37 need to be added to the chamber 35, the cylinder 7 is opened, and the piston rod on the cylinder 7 is shortened, thereby driving the push block 9 to move to the left but not to collide with the extension plate 21. The rack 3 24 on the push block 9 meshes with the gear 25, thereby driving the rack 4 26 to move to the right through the gear 25. The rack 4 26 drives the connecting rod 27 and the conveyor plate 28 to move to the right. The conveyor plate 28 pushes the bottom fragrance chip 37 in the storage chamber 31 to move to the right, thereby causing the fragrance chip 37 to push aside the baffle 32 and pass through the inlet hole 34 into the chamber 35. At this time, the top wall of the conveyor plate 28 supports all the fragrance chips 37 in the storage chamber 31 and isolates the outside air from contacting all the fragrance chips 37 in the storage chamber 31, reducing the evaporation rate of all the fragrance chips 37 in the storage chamber 31.

[0044] When it is necessary to add new scented chips 37 to the chamber 35, the piston rod of the cylinder 7 first extends and resets, thereby driving the conveyor plate 28 to move to the left and reset. When the conveyor plate 28 moves to the left of the storage chamber 31 and disengages from the storage chamber 31, all the scented chips 37 in the storage chamber 31 fall down, and the piston rod of the cylinder 7 is shortened again. The addition of new scented chips 37 is completed using the above principle.

[0045] When it is drizzling, the rainwater passes through the filter water hole 17 and enters the well barrel 1 for drainage. The filter water hole 17 can filter out most impurities, and the oil separator 5 can isolate grease impurities to prevent grease blockage.

[0046] During moderate rain, the top wall of the conveyor plate 28 supports all the incense chips 37 in the storage cavity 31, and the control cylinder shortens until the rack 4 26 pushes the extension plate 21 to overcome the elastic force of the spring 23 and move to the left. The extension plate 21 drives the limit rod 22 to move to the left and disengage from the locking groove 19. After the filter plate 16 loses the limit of the limit rod 22, the filter plate 16 rotates clockwise under the self-resetting force of the self-resetting shaft 15, so that rainwater can directly pass through the loading hole 18 and enter the well barrel 1 for drainage, thus speeding up the drainage speed. The oil separator 5 can isolate grease impurities and prevent grease blockage.

[0047] During heavy rain, the manhole cover 3 can be moved away from the prefabricated manhole ring 2 and placed on the ground, allowing rainwater to directly enter the manhole 1 for drainage, thereby increasing drainage efficiency. The oil separator 5 can isolate grease and impurities to prevent grease blockage.

[0048] Regardless of whether it's rainy or sunny, large debris will always clog the top of the filter water hole 17 and small debris will always clog inside the filter water hole 17. When the cylinder 7 is opened, the piston rod extends, thereby driving the push block 9 to move to the right. When gear 14 and rack 6 mesh, rack 6 drives gear 14 to rotate. Gear 14 drives rack 2 13 to move down, thereby causing the lifting plate 11 to drive all the debris removal plates 12 to gradually move down. Each debris removal plate 12 is inserted into each filter water hole 17 to push down and clean the small debris inside the filter water hole 17. The top seat 4 moves to the right to push away the large debris above the filter water hole 17. Then the piston rod shortens, the push block 9 moves to the left to reset, and the debris removal plate 12 moves up to reset and disengage from the filter water hole 17, completing the cleaning work.

[0049] The present invention has the following beneficial effects:

[0050] By setting up filter plate 16, filter holes 17 and limiting components, the initial interception of larger debris in rainwater is achieved, preventing it from directly entering the well shaft 1, improving the efficiency of primary rainwater filtration, and effectively reducing the risk of drainage system blockage.

[0051] The debris removal plate 12 is used in conjunction with the lifting plate 11. Driven by the gear 14, rack 6, and rack 2 13, it can periodically clean the debris inside and outside the filter water hole 17, ensuring the unobstructed drainage channel, reducing the frequency of manual sludge removal, and improving maintenance convenience.

[0052] The oil separator 5 installed inside the wellbore 1 can effectively separate oily pollutants carried in rainwater, prevent oily impurities from depositing at the bottom of the well or entering the pipeline system, improve the quality of drainage water, and extend the service life of downstream treatment facilities.

[0053] When encountering moderate rain, cylinder 7 pushes extension plate 21 to overcome the elastic force of spring 23, thereby driving limit rod 22 to disengage from lock groove 19, causing filter plate 16 to automatically flip open, and rainwater can be directly discharged into well 1 through plate hole 18, improving drainage efficiency in response to rainstorms and enhancing urban flood control emergency response capabilities.

[0054] When encountering heavy rain, the manhole cover 3 can be removed entirely to fully expose the manhole opening, greatly improving the rainwater inflow capacity and ensuring drainage safety under extreme weather conditions.

[0055] The fragrance release component installed on the manhole cover 3 includes a mesh cage 33, a box cavity 35 and a fragrance chip 37, which can actively release fragrance on sunny days or when there is no rain, effectively alleviating odor pollution near the sewage well and improving the quality of the surrounding environment and pedestrian comfort.

[0056] Through the linkage structure of transmission groove 20, gear 25, rack 4 26 and connecting rod 27, the conveyor plate 28 can automatically push the spare incense chips 37 in storage box 29 into box cavity 35, realize the automation of incense chip 37 replacement, reduce the burden of manual maintenance and improve the system intelligence level.

[0057] The entire structure features a clear modular design, with each component, such as the filter plate 16, mesh box 33, oil separator 5, and storage box 29, being detachable and replaceable. This facilitates daily maintenance, repair, or upgrades and expansions, and demonstrates good engineering adaptability and promising prospects for widespread adoption.

[0058] A construction method for a sewage treatment rainwater well structure based on a prefabricated well ring is used for the construction of the rainwater well structure, including the following steps: excavating the well site pit, ensuring that the bottom of the pit is flat and stable, placing the well cylinder 1 vertically at the bottom of the pit and correcting its position, pouring concrete on the outer wall of the well cylinder 1, fixing the prefabricated well ring 2 to the well cylinder 1, and placing the well cover 3 on the prefabricated well ring 2.

[0059] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0060] Finally, 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 the scope of protection of the present invention. 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 essence and scope of the technical solutions of the present invention.

Claims

1. A sewage treatment rainwater well structure based on a prefabricated well ring, characterized in that, The well includes a well casing, a prefabricated well ring, and a well cover. The prefabricated well ring is fixed to the well casing, and the well cover is placed on the prefabricated well ring. A top seat is fixed to the top wall of the well cover, and a seat cavity is opened on the top seat. A cylinder and a rack are fixed to the inner wall of the seat cavity. A push block is fixed to the piston rod of the cylinder, and a block cavity is opened on the push block. A lifting plate is slidably connected to the block cavity. A debris removal plate and a rack are fixed to the lifting plate. A gear is rotatably connected to the inner wall of the block cavity, and the rack meshes with the gear. A plate mounting hole is opened on the well cover. A filter plate is rotatably connected to the inner wall of the plate mounting hole through a self-resetting rotating shaft. The filter plate has filter water holes and a locking groove. A limit component is connected to the well cover. The limit component extends into the locking groove to limit the filter plate. An oil separator is detachably connected to the inner wall of the well casing. The manhole cover is provided with a transmission groove. The limiting component includes an extension piece, a limiting rod and a spring. The limiting rod is slidably connected to the inner wall of the transmission groove. The extension piece and the limiting rod are fixedly connected. The extension piece extends into the seat cavity. The extension piece is connected to the inner wall of the transmission groove through the spring. The limiting rod extends into the locking groove to limit the filter plate. The manhole cover is equipped with a fragrance release component; The fragrance releasing component includes a connecting frame and a net box. The connecting frame is fixed to the manhole cover, and the net box is detachably connected to the connecting frame. The net box has a cavity, which is connected to the outer wall of the net box through a chip inlet hole. Fragrance chips are placed on the inner wall of the cavity. Gear 2 is rotatably connected to the inner wall of the transmission groove, and gear 2 extends into the seat cavity. Rack 4 and connecting rod are slidably connected to the inner wall of the transmission groove. Rack 4 and connecting rod are fixedly connected. Rack 4 and gear 2 mesh. The lower end of the connecting rod extends to the bottom of the manhole cover. A conveying plate is fixedly connected to the lower end of the connecting rod. A storage box is detachably connected to the manhole cover. The storage box has interconnected storage cavities and conveying channels. The conveying channels connect two opposite outer walls of the storage box. The conveying plate is slidably connected to the inner wall of the conveying channel. Two or more spare incense chips are stacked in the storage cavity. A baffle is rotatably connected to the outer wall of the storage box. The top seat is provided with a first inclined surface, and the push block is provided with a second inclined surface.

2. The sewage treatment rainwater well structure based on a prefabricated well ring according to claim 1, characterized in that, The filter has two or more water holes, and the impurity removal plate has two or more.

3. The sewage treatment rainwater well structure based on a prefabricated well ring according to claim 2, characterized in that, The bottom wall of the infeed hole is inclined.

4. The sewage treatment rainwater well structure based on a prefabricated well ring according to claim 1, characterized in that, The top wall of the cage is convex from the periphery to the center.

5. A construction method for a sewage treatment rainwater well structure based on a prefabricated well ring, characterized in that, The construction of the rainwater well structure according to any one of claims 1-4 includes the following steps: excavating the well site pit, ensuring that the bottom of the pit is flat and stable, placing the well cylinder vertically at the bottom of the pit and correcting its position, pouring concrete on the outer wall of the well cylinder, fixing the precast well ring to the well cylinder, and placing the well cover on the precast well ring.

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