A ductile iron manhole cover with interception and pollution separation function and a method thereof

Abstract

The application discloses a ductile iron well lid with a flow interception and sewage separation function and a method thereof, and belongs to the technical field of ductile iron well lids. The ductile iron well lid comprises a well lid mounting ring seat, a well lid assembly is mounted in the well lid mounting ring seat, a flow interception and sewage separation device is arranged in the well lid assembly, a blockage prevention assembly is mounted in the well lid assembly, and one end of the blockage prevention assembly is connected with the flow interception and sewage separation device. The ductile iron well lid with the flow interception and sewage separation function and the method thereof effectively clean the sewage interception net plate in the built-in groove through a dismounting and mounting mode, improve use convenience, improve the strength of the upper end of the whole well lid, prevent the upper cover end from being broken, improve the service life, and make the impurities filtered out collected into the collecting net bag through the oblique groove and the collecting net bag arranged at the bottom end, so that subsequent cleaning is facilitated, large impurities are effectively prevented from blocking the filter mesh, and the filtering efficiency and the drainage efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of ductile iron manhole cover technology, and in particular to a ductile iron manhole cover with interception and sewage separation function and its method. Background Technology

[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling in.

[0003] Existing manhole covers cannot effectively remove debris from the drainage flow, leading to debris buildup. Furthermore, the drainage system cannot adjust its capacity according to water volume, thus affecting drainage efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a ductile iron manhole cover and method with interception and sewage separation function. The sewage interception mesh plate in the built-in groove can be effectively cleaned by disassembly and assembly, which improves the convenience of use, increases the strength of the upper part of the manhole cover, prevents the upper cover from cracking, and extends the service life. The bottom is provided with an inclined groove and a collection mesh bag, so that the filtered impurities are collected in the collection mesh bag, which is convenient for subsequent cleaning. It effectively prevents large debris from clogging the filter mesh, improves filtration efficiency and drainage efficiency, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A ductile iron manhole cover with interception and sewage separation function includes a manhole cover mounting ring seat, a manhole cover assembly installed inside the manhole cover mounting ring seat, an interception and sewage separation device installed inside the manhole cover assembly, and an anti-clogging component installed inside the manhole cover assembly, one end of the anti-clogging component being connected to the interception and sewage separation device.

[0007] Furthermore, the manhole cover assembly includes an upper cover body, a reinforcing structure, a drainage outlet, a lower cover body, an internal groove, and a connecting component. The upper cover body has a reinforcing structure inside, a drainage outlet is provided on the surface of the upper cover body, and a lower cover body is provided below the upper cover body. An internal groove is provided at the center of the lower cover body. The lower cover body and the upper cover body are movably connected by the connecting component. The two ends of the lower cover body are provided with locking blocks, and the inner ends of the manhole cover mounting ring seat are provided with limiting grooves that engage with the locking blocks.

[0008] Furthermore, the reinforcement structure includes annular reinforcing steel bars, transverse reinforcing steel bars, vertical reinforcing steel bars, and a central bar. Multiple sets of transverse reinforcing steel bars are connected in annularly to the outside of the central bar. Multiple sets of annular reinforcing steel bars are staggered among the transverse reinforcing steel bars. Vertical reinforcing steel bars are vertically installed at the intersection of the annular reinforcing steel bars and the transverse reinforcing steel bars.

[0009] Furthermore, the connecting assembly includes a limiting post, a locking rod, an insertion slot, and a locking groove. The limiting post is fixed to the bottom end face of the upper cover, and a locking rod is installed below the limiting post. The insertion slot is opened on the lower cover, and a locking groove extends from the lower cover body below the insertion slot. The insertion slot is inserted into and connected to the limiting post and the locking rod, and the locking groove is slidably connected to the limiting post and the locking rod.

[0010] Furthermore, the interception and diversion device includes a diversion channel, a first intercepting screen, a second screen, a third screen, an adjusting device, an inclined groove, and a collection net bag. The diversion channel is located inside the manhole cover assembly. The first, second, and third screens are fitted onto the adjusting device. The first, second, and third screens and the adjusting device are located inside the manhole cover assembly. The inclined groove is located inside the manhole cover assembly below the first, second, and third screens. A collection net bag is located at the bottom of the manhole cover assembly.

[0011] Furthermore, the adjustment device includes an adjustment motor, a lead screw sleeve, a first lead screw, a second lead screw, a bottom connecting cylinder, a drive gear, a linkage gear, and a top connecting cylinder. The adjustment motor is fixed inside the manhole cover assembly. A drive gear is sleeved on the output rod of the adjustment motor. A lead screw sleeve is sleeved on the output rod above the drive gear. The upper end of the lead screw sleeve is connected to the output end of the top connecting cylinder. The top connecting cylinder is fixed inside the manhole cover assembly. A first lead screw and a second lead screw are respectively provided on both sides of the lead screw sleeve. A linkage gear is respectively provided at the bottom end of the first lead screw and the second lead screw. The bottom end of the linkage gear is connected to the output end of the bottom connecting cylinder through a bearing. A locking post is provided above the drive gear. Locking plates are provided on both sides of the bottom end of the lead screw sleeve to be movably locked with the locking post. A first sewage screen is covered on the lead screw sleeve by a matching nut. A second sewage screen is covered on the first lead screw by a matching nut. A third sewage screen is covered on the second lead screw by a matching nut.

[0012] Furthermore, the anti-clogging component includes a limiting sleeve, a drive motor, an internal rotating rod, an upper connecting gear, a gear ring, a connecting bracket, a linkage rod, a sleeve ring, and scrapers. The bottom end of the limiting sleeve movably penetrates the intercepting and diverting device and connects to the well cover assembly. An internal rotating rod is installed inside the limiting sleeve, and the bottom end of the internal rotating rod is connected to the drive motor. An upper connecting gear is sleeved on the upper end of the internal rotating rod, and the upper connecting gear meshes with the gear ring. The inner end of the gear ring is connected to the connecting bracket. The upper end of the connecting bracket is connected to the inner wall of the well cover assembly through a bearing. A linkage rod that penetrates the intercepting and diverting device is connected below the connecting bracket. A sleeve ring is sleeved on the linkage rod, and scrapers are provided on both sides of the sleeve ring.

[0013] Furthermore, locking protrusions are provided on both sides of the linkage rod, and the inner wall of the sleeve ring is provided with a strip-shaped groove that aligns and engages with the locking protrusions.

[0014] This invention provides another technical solution: a method for using a ductile iron manhole cover with interception and sewage separation function, comprising the following steps:

[0015] Step 1: A reinforcing structure is installed inside the upper cover to reinforce the upper end of the manhole cover. The drainage outlet is used for drainage. The upper cover is assembled with the lower cover through connecting components. An internal groove is provided between the upper and lower covers to accommodate the interception and diversion device and the anti-clogging component.

[0016] Step 2: During the drainage process, the drained water is filtered through the first, second and third sewage screens to effectively filter impurities. The setting of multiple diversion channels increases the diversion efficiency and improves the drainage speed. The bottom is equipped with an inclined channel and a collection net bag to collect the filtered impurities into the collection net bag.

[0017] Step 3: The drive motor drives the built-in rotating rod to rotate, which in turn drives the upper gear to rotate. Through meshing, the gear ring, connecting bracket, and linkage rod rotate, thereby driving the sleeve ring and scraper to rotate and scrape off the large dirt on the first section of the dirt screen.

[0018] Furthermore, in step two, during the drainage process when the water flow is small, the adjusting device adjusts the first, second, and third intercepting screens to a fitted state. When fitted, the mesh holes on the three sets of intercepting screens overlap, resulting in smaller meshes and effectively filtering impurities. When the water flow is large, the adjusting device drives the first intercepting screen to move upward, while the second and third intercepting screens separate. The first intercepting screen is used to filter large impurities and prevent blockage of the diversion channel. The separation of the second and third intercepting screens makes the mesh larger, increasing the drainage speed.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The ductile iron manhole cover and method with interception and sewage separation function proposed in this invention have multiple sets of annular reinforcing steel bars arranged alternately between the transverse reinforcing steel bars, and vertical reinforcing steel bars arranged vertically at the intersection of the annular reinforcing steel bars and the transverse reinforcing steel bars. A reinforcing structure is provided in the upper cover body to reinforce the upper end of the manhole cover. The drainage outlet is used for drainage. The upper cover body is assembled with the lower cover body through connecting components. An internal groove is opened between the upper cover body and the lower cover body to accommodate the interception and sewage separation device and the anti-clogging component. The reinforcing structure effectively reinforces the upper cover body, improves the strength of the entire upper end of the manhole cover, prevents the upper cover end from cracking, and improves the service life.

[0021] 2. The ductile iron manhole cover and its method with interception and sewage separation function proposed in this invention have an insertion groove that is connected to a limiting post and a locking rod, and a locking groove that is slidably connected to the limiting post and the locking rod. The limiting post and the locking rod are inserted into the insertion groove and the locking groove, and the upper cover is rotated to drive the locking rod to be locked in the locking groove for effective limiting. The sewage interception screen in the built-in groove can be effectively cleaned by disassembly and assembly, improving the convenience of use.

[0022] 3. The ductile iron manhole cover and its method with interception and sewage separation function proposed in this invention have inclined grooves opened in the manhole cover assembly below the first sewage interception mesh plate, the second sewage mesh plate and the third sewage mesh plate. The bottom end of the manhole cover assembly is provided with a collection net bag. During the drainage process, the drainage water is filtered through the first sewage interception mesh plate, the second sewage mesh plate and the third sewage mesh plate to effectively filter impurities. The setting of multiple diversion grooves increases the diversion efficiency and improves the drainage speed. The inclined grooves and collection net bags at the bottom end allow the filtered impurities to be collected in the collection net bags for easy subsequent cleaning.

[0023] 4. The ductile iron manhole cover and its method with interception and sewage separation function proposed in this invention have a linkage rod connected to the lower part of the connecting bracket, which penetrates the interception and sewage separation device. A sleeve ring is sleeved on the linkage rod, and scrapers are provided on both sides of the sleeve ring. The linkage rod has locking protrusions on both sides. The inner wall of the sleeve ring has a strip-shaped groove that aligns and engages with the locking protrusions. A drive motor drives the built-in rotating rod to rotate, which in turn drives the upper gear to rotate. Through meshing, the gear ring, the connecting bracket, and the linkage rod rotate, thereby driving the sleeve ring and scrapers to rotate. This scrapes away large dirt on the first sewage interception screen, effectively preventing large debris from clogging the filter mesh and improving filtration and drainage efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is an exploded view of the manhole cover assembly structure of the present invention;

[0026] Figure 3 This is a cross-sectional view of the upper cover structure of the present invention;

[0027] Figure 4 For the present invention Figure 2 Enlarged view of point A;

[0028] Figure 5 This is a cross-sectional view of the manhole cover assembly structure of the present invention;

[0029] Figure 6 This is a partial structural cross-sectional view of the interception and separation device of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of point B;

[0031] Figure 8 This is a schematic diagram of the meshing structure of the drive gear and the linkage gear of the present invention;

[0032] Figure 9 This is a side view of the anti-clogging component structure of the present invention;

[0033] Figure 10 This is a top view of the anti-clogging component structure of the present invention;

[0034] Figure 11 This is an enlarged, exploded view of the linkage rod and sleeve ring connection structure of the present invention.

[0035] In the diagram: 1. Manhole cover mounting ring seat; 11. Limiting groove; 2. Manhole cover assembly; 21. Upper cover body; 22. Reinforcing structure; 221. Circular reinforcing steel rod; 222. Horizontal reinforcing steel rod; 223. Vertical reinforcing steel rod; 224. Center rod; 23. Drainage outlet; 24. Lower cover body; 241. Locking block; 25. Internal groove; 26. Connecting assembly; 261. Limiting post; 262. Locking rod; 263. Insertion groove; 264. Locking groove; 3. Interception and sewage diversion device; 31. Diversion groove opening; 32. First sewage interception screen plate; 33. Second sewage screen plate; 34. Third sewage screen plate; 35. Adjustment... Positioning device; 351, Adjusting motor; 352, Lead screw sleeve; 3521, Clamping plate; 353, First lead screw; 354, Second lead screw; 355, Bottom connecting cylinder; 356, Drive gear; 3561, Clamping post; 357, Linkage gear; 358, Top connecting cylinder; 36, Inclined groove; 37, Collection net bag; 4, Anti-clogging component; 41, Limiting sleeve; 42, Drive motor; 43, Built-in rotating rod; 44, Upper connecting gear; 45, Gear ring; 46, Connecting bracket; 47, Linkage rod; 471, Clamping protrusion; 48, Connecting ring; 481, Strip-shaped groove hole; 49, Scraper. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 A ductile iron manhole cover with interception and sewage diversion function includes a manhole cover mounting ring 1, a manhole cover assembly 2 installed inside the manhole cover mounting ring 1, an interception and sewage diversion device 3 installed inside the manhole cover assembly 2, and an anti-clogging component 4 installed inside the manhole cover assembly 2, with one end of the anti-clogging component 4 connected to the interception and sewage diversion device 3.

[0038] Please see Figures 2-3The manhole cover assembly 2 includes an upper cover 21, a reinforcing structure 22, a drainage outlet 23, a lower cover 24, an internal groove 25, and a connecting assembly 26. The upper cover 21 has a reinforcing structure 22 inside, and a drainage outlet 23 is provided on the surface of the upper cover 21. The lower cover 24 is provided below the upper cover 21, and an internal groove 25 is provided at the center of the lower cover 24. The lower cover 24 and the upper cover 21 are movably connected by the connecting assembly 26. The two ends of the lower cover 24 are provided with locking blocks 241. The inner ends of the manhole cover mounting ring seat 1 are provided with limiting grooves 11 that engage with the locking blocks 241. The reinforcing structure 22 includes an annular reinforcing steel rod 221, a transverse reinforcing steel rod 222, a vertical reinforcing steel rod 223, and a central rod 224. The outer side of the central rod 224 is connected with multiple sets of transverse reinforcing steel rods 222. Multiple sets of annular reinforcing steel rods 221 are staggered between the transverse reinforcing steel rods 222. Vertical reinforcing steel rods 223 are vertically arranged at the intersection of the annular reinforcing steel rods 221 and the transverse reinforcing steel rods 222. A reinforcing structure 22 is provided inside the upper cover 21 to reinforce the upper end of the manhole cover. The drain outlet 23 is used for drainage. The upper cover 21 is assembled with the lower cover 24 through the connecting component 26. An internal groove 25 is opened between the upper cover 21 and the lower cover 24 to accommodate the intercepting and diverting sewage device 3 and the anti-clogging component 4. The reinforcing structure 22 effectively reinforces the upper cover 21, improves the strength of the entire upper end of the manhole cover, prevents the upper end of the cover from cracking, and improves the service life.

[0039] Please see Figure 4 The connecting component 26 includes a limiting post 261, a locking rod 262, an insertion groove 263, and a locking slot 264. The limiting post 261 is fixed to the bottom surface of the upper cover 21. The locking rod 262 is installed below the limiting post 261. The insertion groove 263 is opened on the lower cover 24. The locking slot 264 extends into the lower cover 24 below the insertion groove 263. The insertion groove 263 is inserted into the limiting post 261 and the locking rod 262. The locking slot 264 is slidably connected to the limiting post 261 and the locking rod 262. The limiting post 261 and the locking rod 262 are inserted into the insertion groove 263 and the locking slot 264. Rotating the upper cover 21 causes the locking rod 262 to be locked in the locking slot 264 for effective limiting. The screen plate in the built-in groove 25 can be effectively cleaned by disassembly and assembly, improving the ease of use.

[0040] Please see Figure 5The intercepting and diverting device 3 includes a diversion channel 31, a first intercepting mesh plate 32, a second intercepting mesh plate 33, a third intercepting mesh plate 34, an adjusting device 35, an inclined groove 36, and a collection net bag 37. The diversion channel 31 is located inside the manhole cover assembly 2. The first intercepting mesh plate 32, the second intercepting mesh plate 33, and the third intercepting mesh plate 34 are fitted onto the adjusting device 35. The first intercepting mesh plate 32, the second intercepting mesh plate 33, the third intercepting mesh plate 34, and the adjusting device 35 are disposed inside the manhole cover assembly 2. The inclined groove 36 is located inside the first intercepting mesh plate 34. Inside the manhole cover assembly 2 below the first, second, and third sewage screens 32, a collection net bag 37 is provided at the bottom of the manhole cover assembly 2. During the drainage process, the drained water is filtered by the first, second, and third sewage screens 32, effectively filtering impurities. The setting of multiple diversion slots 31 increases the diversion efficiency and improves the drainage speed. The bottom is provided with an inclined slot 36 and a collection net bag 37 so that the filtered impurities are collected in the collection net bag 37 for easy subsequent cleaning.

[0041] Please see Figures 6-8The adjustment device 35 includes an adjustment motor 351, a lead screw sleeve 352, a first lead screw 353, a second lead screw 354, a bottom connecting cylinder 355, a drive gear 356, a linkage gear 357, and a top connecting cylinder 358. The adjustment motor 351 is fixed inside the manhole cover assembly 2. The drive gear 356 is sleeved on the output rod of the adjustment motor 351. The lead screw sleeve 352 is sleeved on the output rod above the drive gear 356. The upper end of the lead screw sleeve 352 is connected to the output end of the top connecting cylinder 358. The top connecting cylinder 358 is fixed inside the manhole cover assembly 2. The first lead screw 354 is provided on both sides of the lead screw sleeve 352. 3. The bottom ends of the first lead screw 353 and the second lead screw 354 are respectively provided with linkage gears 357. The bottom ends of the linkage gears 357 are connected to the output end of the bottom cylinder 355 through bearings. A locking post 3561 is provided above the drive gear 356. The bottom ends of the lead screw sleeve 352 are provided with locking plates 3521 that are movable and locked with the locking post 3561. The first sewage screen plate 32 is covered on the lead screw sleeve 352 by matching nuts. The second sewage screen plate 33 is covered on the first lead screw 353 by matching nuts. The third sewage screen plate 34 is covered on the second lead screw 354 by matching nuts. When the first section of the sewage screen 32 needs to be moved, the top-mounted cylinder 358 drives the lead screw sleeve 352 to move downward, causing the locking post 3561 to engage with the locking plate 3521. The adjusting motor 351 can drive the lead screw sleeve 352 to rotate. When the second sewage screen 33 needs to be moved, the bottom-mounted cylinder 355 drives the linkage gear 357 on the first lead screw 353 to mesh with the drive gear 356, thereby driving the second sewage screen 33 to move. The principle of moving the third sewage screen 34 is the same. During the drainage process, when the water flow is small, the first section of the sewage screen 32, the second sewage screen 33, and the third sewage screen 34 are adjusted and positioned by the adjusting device 35. In the combined state, when the three sets of intercepting screens are in contact, the mesh holes overlap, causing the mesh size to decrease and effectively filtering impurities. When the water flow is large, the adjusting device 35 drives the first intercepting screen 32 on the first lead screw 353 to move upward, and the second screen 33 and the third screen 34 separate. The first screen 32 is used to filter large impurities and prevent blockage of the diversion channel 31. The separation of the second screen 33 and the third screen 34 makes the mesh size larger and increases the drainage speed. The spacing between the first screen 32, the second screen 33 and the third screen 34 can be changed as needed to achieve better interception and drainage.

[0042] Please see Figures 9-11The anti-clogging component 4 includes a limiting sleeve 41, a drive motor 42, an internal rotating rod 43, an upper connecting gear 44, a gear ring 45, a connecting bracket 46, a linkage rod 47, a sleeve ring 48, and a scraper 49. The bottom end of the limiting sleeve 41 is connected to the intercepting and diverting sewage device 3, which is movable through it, and is connected to the manhole cover component 2. An internal rotating rod 43 is installed inside the limiting sleeve 41. The bottom end of the internal rotating rod 43 is connected to the drive motor 42. An upper connecting gear 44 is sleeved on the upper end of the internal rotating rod 43. The upper connecting gear 44 meshes with the gear ring 45. The inner end of the gear ring 45 is connected to the connecting bracket 46. The upper end of the connecting bracket 46 is connected to the inner wall of the manhole cover component 2 through a bearing. A through-hole is connected below the connecting bracket 46. The linkage rod 47 of the intercepting and separating device 3 has a sleeve ring 48 fitted on it. Scrapers 49 are provided on both sides of the sleeve ring 48. Locking protrusions 471 are provided on both sides of the linkage rod 47. The inner wall of the sleeve ring 48 has a strip-shaped groove 481 that aligns and engages with the locking protrusions 471. The drive motor 42 drives the built-in rotating rod 43 to rotate. The built-in rotating rod 43 drives the upper gear 44 to rotate. Through meshing, the gear ring 45, the connecting bracket 46, and the linkage rod 47 rotate, thereby driving the sleeve ring 48 and the scraper 49 to rotate. This scrapes away large dirt on the first intercepting screen 32, effectively preventing large debris from clogging the filter mesh and improving filtration and drainage efficiency.

[0043] Based on the above-mentioned ductile iron manhole cover with interception and sewage diversion function, this embodiment proposes a method for using a ductile iron manhole cover with interception and sewage diversion function, including the following steps:

[0044] Step 1: A reinforcing structure 22 is installed inside the upper cover 21 to reinforce the upper end face of the manhole cover. The drain outlet 23 is used for drainage. The upper cover 21 is assembled with the lower cover 24 through the connecting component 26. An internal groove 25 is provided between the upper cover 21 and the lower cover 24 to accommodate the intercepting and diverting sewage device 3 and the anti-clogging component 4.

[0045] Step 2: During the drainage process, the drained water is filtered by the first intercepting screen 32, the second screen 33 and the third screen 34 to effectively filter impurities. The setting of multiple diversion slots 31 increases the diversion efficiency and improves the drainage speed. The bottom is provided with an inclined slot 36 and a collection net bag 37 so that the filtered impurities are collected in the collection net bag 37.

[0046] Step 3: Drive motor 42 drives built-in rotating rod 43 to rotate, built-in rotating rod 43 drives upper gear 44 to rotate, and through meshing drive gear ring 45, connecting bracket 46 and linkage rod 47 to rotate, thereby driving sleeve ring 48 and scraper 49 to rotate, scraping off large dirt on the first section of dirt screen plate 32.

[0047] In summary, the ductile iron manhole cover and method with interception and sewage separation function proposed in this invention features multiple sets of annular reinforcing steel rods 221 interlaced between transverse reinforcing steel rods 222, and vertical reinforcing steel rods 223 vertically arranged at the intersection of the annular reinforcing steel rods 221 and the transverse reinforcing steel rods 222. A reinforcing structure 22 is provided inside the upper cover 21 to reinforce the upper end face of the manhole cover. The drain outlet 23 is used for drainage. The upper cover 21 is assembled with the lower cover 24 through a connecting component 26. An internal groove 25 for accommodating the interception and sewage separation device 3 and the anti-clogging component 4 is provided between the upper cover 21 and the lower cover 24. The reinforcing structure 22... The upper cover 21 is effectively reinforced, increasing the strength of the entire upper part of the manhole cover, preventing cracking of the upper cover end, and extending its service life. The insertion groove 263 is inserted into the limiting post 261 and the locking rod 262. The locking groove 264 is slidably connected to the limiting post 261 and the locking rod 262. The limiting post 261 and the locking rod 262 are inserted into the insertion groove 263 and the locking groove 264. Rotating the upper cover 21 causes the locking rod 262 to be locked in the locking groove 264 for effective limiting. The internal groove 25 can be effectively cleaned by disassembly and assembly, improving ease of use. The inclined groove 36 is opened in the first intercepting mesh. Inside the manhole cover assembly 2 below the first intercepting screen 32, the second sewage screen 33, and the third sewage screen 34, a collection net bag 37 is provided at the bottom of the manhole cover assembly 2. During drainage, the drained water is filtered by the first intercepting screen 32, the second sewage screen 33, and the third sewage screen 34, effectively filtering impurities. The setting of multiple diversion slots 31 increases the diversion efficiency and improves the drainage speed. The bottom is provided with an inclined groove 36 and a collection net bag 37, so that the filtered impurities are collected in the collection net bag 37 for easy subsequent cleaning. A linkage rod 47 that penetrates the intercepting and diverting device 3 is connected below the connecting bracket 46. A sleeve ring 48 is fitted with scrapers 49 on both sides of the sleeve ring 48, and locking protrusions 471 on both sides of the linkage rod 47. The inner wall of the sleeve ring 48 has a strip-shaped slot 481 that aligns and engages with the locking protrusions 471. The drive motor 42 drives the built-in rotating rod 43 to rotate, which in turn drives the upper gear 44 to rotate. Through meshing, the gear ring 45, the connecting bracket 46, and the linkage rod 47 rotate, thereby driving the sleeve ring 48 and the scrapers 49 to rotate. This scrapes away large dirt on the first section of the dirt screen 32, effectively preventing large debris from clogging the filter mesh and improving filtration and drainage efficiency.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A ductile iron manhole cover with interception and sewage separation function, characterized in that: Includes a manhole cover mounting ring (1), a manhole cover assembly (2) is installed inside the manhole cover mounting ring (1), a sewage interception and diversion device (3) is provided inside the manhole cover assembly (2), an anti-clogging component (4) is installed inside the manhole cover assembly (2), and one end of the anti-clogging component (4) is connected to the sewage interception and diversion device (3). The intercepting and diverting device (3) includes a diversion slot (31), a first intercepting screen (32), a second screen (33), a third screen (34), an adjusting device (35), an inclined slot (36), and a collection net bag (37). The diversion slot (31) is opened at the inner end of the manhole cover assembly (2). The first intercepting screen (32), the second screen (33), and the third screen (34) are sleeved on the adjusting device (35). The first intercepting screen (32), the second screen (33), the third screen (34), and the adjusting device (35) are set inside the manhole cover assembly (2). The inclined slot (36) is opened inside the manhole cover assembly (2) below the first intercepting screen (32), the second screen (33), and the third screen (34). A collection net bag (37) is provided at the bottom end of the manhole cover assembly (2). The adjustment device (35) includes an adjustment motor (351), a lead screw sleeve (352), a first lead screw (353), a second lead screw (354), a bottom connecting cylinder (355), a drive gear (356), a linkage gear (357), and a top connecting cylinder (358). The adjustment motor (351) is fixed inside the manhole cover assembly (2). The drive gear (356) is sleeved on the output rod of the adjustment motor (351). The lead screw sleeve (352) is sleeved on the output rod above the drive gear (356). The upper end of the lead screw sleeve (352) is connected to the output end of the top connecting cylinder (358). The top connecting cylinder (358) is fixed inside the manhole cover assembly (2). The first lead screw is provided on both sides of the lead screw sleeve (352). (353) and the second lead screw (354), the bottom ends of the first lead screw (353) and the second lead screw (354) are respectively provided with linkage gears (357), the bottom end of the linkage gear (357) is connected to the output end of the bottom cylinder (355) through bearings, the drive gear (356) is provided with a locking post (3561) above it, the bottom end of the lead screw sleeve (352) is provided with locking plates (3521) that are movable and locked with the locking post (3561), the first sewage screen plate (32) is covered on the lead screw sleeve (352) by matching nuts, the second sewage screen plate (33) is covered on the first lead screw (353) by matching nuts, and the third sewage screen plate (34) is covered on the second lead screw (354) by matching nuts.

2. A ductile iron manhole cover with interception and sewage separation function according to claim 1, characterized in that: The manhole cover assembly (2) includes an upper cover (21), a reinforcing structure (22), a drain outlet (23), a lower cover (24), an internal groove (25), and a connecting assembly (26). The upper cover (21) has a reinforcing structure (22) inside. A drain outlet (23) is provided on the surface of the upper cover (21). The lower cover (24) is provided below the upper cover (21). An internal groove (25) is provided at the center of the lower cover (24). The lower cover (24) and the upper cover (21) are movably connected by the connecting assembly (26). The lower cover (24) has locking blocks (241) at both ends. The manhole cover mounting ring seat (1) has limiting grooves (11) on both sides of its inner end that engage with the locking blocks (241).

3. A ductile iron manhole cover with interception and sewage separation function according to claim 2, characterized in that: The reinforcement structure (22) includes annular reinforcement steel rods (221), transverse reinforcement steel rods (222), vertical reinforcement steel rods (223) and a central rod (224). Multiple sets of transverse reinforcement steel rods (222) are connected in annularly to the outside of the central rod (224). Multiple sets of annular reinforcement steel rods (221) are staggered between the transverse reinforcement steel rods (222). Vertical reinforcement steel rods (223) are vertically arranged at the intersection of the annular reinforcement steel rods (221) and the transverse reinforcement steel rods (222).

4. A ductile iron manhole cover with interception and sewage separation function according to claim 2, characterized in that: The connecting component (26) includes a limiting post (261), a locking rod (262), an insertion groove (263), and a locking slot (264). The limiting post (261) is fixed on the bottom surface of the upper cover (21). The locking rod (262) is installed below the limiting post (261). The insertion groove (263) is opened on the lower cover (24). The locking slot (264) extends into the lower cover (24) below the insertion groove (263). The insertion groove (263) is inserted into the limiting post (261) and the locking rod (262). The locking slot (264) is slidably connected to the limiting post (261) and the locking rod (262).

5. A ductile iron manhole cover with interception and sewage separation function according to claim 2, characterized in that: The anti-clogging component (4) includes a limiting sleeve (41), a drive motor (42), an internal rotating rod (43), an upper gear (44), a gear ring (45), a connecting bracket (46), a linkage rod (47), a sleeve ring (48), and a scraper (49). The bottom end of the limiting sleeve (41) is connected to the well cover component (2) via a movable penetrating intercepting and diverting device (3). An internal rotating rod (43) is provided inside the limiting sleeve (41), and the bottom end of the internal rotating rod (43) is connected to the drive motor (42). The upper end of the built-in rotating rod (43) is fitted with an upper gear (44), which meshes with a gear ring (45). The inner end of the gear ring (45) is connected to a connecting bracket (46). The upper end of the connecting bracket (46) is connected to the inner wall of the well cover assembly (2) through a bearing. The lower part of the connecting bracket (46) is connected to a linkage rod (47) that penetrates the intercepting and diverting device (3). A sleeve ring (48) is fitted on the linkage rod (47), and scrapers (49) are provided on both sides of the sleeve ring (48).

6. A ductile iron manhole cover with interception and sewage separation function according to claim 5, characterized in that: The linkage rod (47) is provided with locking protrusions (471) on both sides, and the inner wall of the sleeve ring (48) is provided with a strip-shaped slot (481) that aligns and engages with the locking protrusions (471).

7. A method of using a ductile iron manhole cover with interception and sewage separation function according to any one of claims 5-6, characterized in that: Includes the following steps: Step 1: A reinforcing structure (22) is installed inside the upper cover (21) to reinforce the upper end face of the manhole cover. The drain outlet (23) is used for drainage. The upper cover (21) is assembled with the lower cover (24) through the connecting component (26). An internal groove (25) is provided between the upper cover (21) and the lower cover (24) to accommodate the interception and sewage separation device (3) and the anti-clogging component (4). Step 2: During the drainage process, the drained water is filtered by the first intercepting screen (32), the second screen (33) and the third screen (34). The setting of multiple diversion slots (31) increases the diversion efficiency and improves the drainage speed. The bottom is equipped with an inclined groove (36) and a collection net bag (37) so that the filtered impurities are collected in the collection net bag (37). Step 3: The drive motor (42) drives the built-in rotating rod (43) to rotate. The built-in rotating rod (43) drives the upper gear (44) to rotate. Through meshing, the drive gear ring (45), connecting bracket (46), and linkage rod (47) rotate, thereby driving the sleeve ring (48) and scraper (49) to rotate, and scraping off the large dirt on the first section of the dirt screen (32).

8. The method of using a ductile iron manhole cover with interception and sewage separation function according to claim 7, characterized in that: In step two, when the water flow is small during drainage, the first intercepting screen (32), the second screen (33), and the third screen (34) are adjusted to fit together by the adjusting device (35). When they fit together, the mesh holes on the three sets of intercepting screens overlap. When the water flow is large, the adjusting device (35) drives the first intercepting screen (32) to move upward, and the second screen (33) and the third screen (34) separate. The first intercepting screen (32) is used to filter large impurities, and the separation of the second screen (33) and the third screen (34) makes the mesh larger.

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