A drainage and filtering manhole cover

Abstract

The present invention relates to the technical field of municipal drainage, and specifically discloses a drainage and filtering manhole cover, comprising an upper end cover assembly, the upper end cover assembly comprising an upper end cover top plate, and a lower sleeve assembly is fixedly connected to the lower end of the upper end cover assembly, the lower sleeve assembly comprises a lower connecting flange annularly fixedly connected to the upper end cover top plate; the double-axis motor is controlled by judging the size of the rain according to the height of the floating ball rising, and at the same time, the torque of the middle rotating shaft is detected to detect whether the manhole pipe is blocked, if so, the blockage is rotated, squeezed and crushed by the cooperation of the reciprocating assembly and the middle rotating shaft, and at the same time, during the operation of the reciprocating assembly, it is detected whether the carrying capacity of the filter assembly reaches the upper limit, and if so, the signal is transmitted to the background through the control system, so that people are sent to clear the blockage or set a safety mark.

Description

Technical Field

[0001] The invention relates to the technical field of municipal drainage, in particular to a drainage and filtering type manhole cover. Background Art

[0002] There are many underground pipelines in urban construction. In order to facilitate the installation and maintenance of equipment, multiple manholes are usually arranged above the pipelines. Manhole covers need to be installed above the manholes to protect their upper ends, and these manhole covers need to have certain drainage functions. For example, patent No. CN213268253U discloses an urban drainage manhole cover, including a metal cover, a limiting protection ring is fixedly sleeved on the upper outer wall of the metal cover, a groove is provided on the top wall of the metal cover, the metal cover is located between the upper and lower side walls of the outer wall of the groove, and four drainage grooves are provided in a circular shape with equal distances, the top wall of the metal cover is located on the outside of the groove and is fixedly connected with four anti-sliding blocks in a circular shape with equal distances, and a connecting block is fixedly connected to one side wall of the groove. This patent has a four-drain hole structure and is equipped with a filtering drainage mechanism. The actual drainage efficiency is high and the drainage filtering work can be performed at the same time. In addition, a top cover anti-slip mechanism and a hidden handle mechanism are provided. When normal pedestrians pass through, it is not easy to slip and fall. The manhole cover is easy to install and disassemble, and the actual usability is good. It can meet general use requirements. However, it still has the following disadvantages in actual use:

[0003] 1. The drainage manhole cover in the prior art is prone to form a vortex flow at the upper end of the manhole cover when encountering heavy rain. The water flow is likely to carry a large amount of debris and accumulate at the upper end of the manhole cover, forming an obstruction to the upper end of the manhole cover, reducing the drainage performance of the manhole cover, affecting urban drainage, and easily causing urban waterlogging;

[0004] 2. In the prior art, the drainage manhole cover carries a large amount of debris in the rainwater discharged from the upper end of the manhole cover. The debris is easily accumulated in the drainage pipe to form a retention zone, affecting the normal drainage of the drainage pipe. Summary of the invention

[0005] The object of the present invention is to provide a drainage and filtering manhole cover to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drainage and filtering manhole cover, comprising an upper end cover assembly, the upper end cover assembly comprises an upper end cover top plate, and a rain detection device is fixedly connected to the middle part of the upper end cover top plate; a lower sleeve assembly is provided at the lower end of the upper end cover assembly, and the lower sleeve assembly comprises a lower connecting flange, and the lower end of the lower connecting flange is fixedly connected to the lower sleeve, and the inner ring of the lower sleeve is axially slidably connected to a movable sleeve, and the bottom of the movable sleeve is equipped with a filter assembly, and the bottom of the inner ring of the movable sleeve is fixedly connected to a reciprocating assembly; an intermediate rotating assembly connected to the rain detection device is provided at the middle part of the reciprocating assembly; the rain detection device comprises an upper fixed seat fixedly connected to the bottom of the upper end cover top plate, and the interior of the upper fixed seat is connected to the rain detection device by a first A pop-up piece is rotatably connected to a rotating block with the first circulation groove, an active cavity is opened inside the rotating block, a movable rod is slidably connected inside the active cavity, and a float is fixedly connected to the top of the movable rod; the intermediate rotating component includes a bracket fixedly connected to the inner ring of the lower sleeve, a dual-axis motor is fixedly connected to the middle part of the bracket, one of the output shafts of the dual-axis motor is fixedly connected to the rotating block, and the other output shaft of the dual-axis motor is fixedly connected to the intermediate rotating shaft through a locking component, lower spiral drainage blades arranged in a spiral line are fixedly connected to the outer wall of the intermediate rotating shaft, and array-distributed discharge scrapers are fixedly connected below the lower spiral drainage blades, and a second circulation groove for driving the reciprocating component to move is provided between the lower spiral drainage blades and the discharge scrapers.

[0007] A rainfall detection device is provided to detect the amount of rainfall and thus control the operation of the intermediate rotating component. A torque sensor is provided inside the intermediate rotating shaft. The blockage condition in the manhole and whether the filter component has reached saturation can be determined by detecting the value detected by the torque sensor.

[0008] Preferably, the reciprocating assembly includes a connecting rib plate fixedly connected to the bottom of the movable sleeve and distributed in an array, a mesh disk fixedly connected to the other end of the connecting rib plate, the mesh disk is rotatably connected to the second circulation groove through a second pop-up piece, and a hanging groove is provided between the outer periphery of the mesh disk and the inner bottom of the movable sleeve.

[0009] The mesh plate has a conical cross section and a certain slope, so that impurities falling from above can more easily enter the containing area of ​​the filter cartridge of the U-shaped trough structure.

[0010] Preferably, an annular filter is fixedly connected to the bottom of the outer ring of the upper end cover top plate, and one end of the annular filter away from the upper end cover top plate is slidably connected to the top of the lower sleeve. By providing the annular filter, the annular filter slides axially with the lower sleeve, so that under the cooperation of the first pop-up member and the rotating block, the upper end cover top plate is slightly opened in a reciprocating cycle, so that the accumulated water can quickly enter the manhole pipe, and the annular filter blocks some larger impurities to prevent the impurities from clogging the manhole pipe.

[0011] Preferably, the middle of the top plate of the upper end cover is provided with middle water holes evenly distributed in an annular direction, and the outer side of the middle water holes is provided with outer water holes evenly distributed in an annular direction. When it rains, rainwater accumulates on the road surface, and the accumulated water flows from the top to the bottom of the top plate of the upper end cover through the middle water holes and the outer water holes on the top plate of the upper end cover.

[0012] Preferably, the filter assembly comprises a filter cartridge having an annular U-shaped groove structure, the inner and outer sides of the upper end of the filter cartridge are fixedly connected with clamps that fit into the suspension groove, and the inner and outer walls of the filter cartridge are provided with drainage holes distributed in an array.

[0013] Among them, the clamp plays a role of fixing the upper end relative to the filter cartridge, the drainage hole plays a role of drainage and filtering, and the filter cartridge plays a role of storing debris falling from the drainage trough.

[0014] Preferably, a water collecting groove is provided on the upper end surface of the movable sleeve, and a drainage groove is provided on the lower end surface of the movable sleeve. The bottom of the drainage groove is fixedly connected to the connecting rib plate, and the bottom diameter of the drainage groove is equal to the outer ring diameter of the filter cartridge.

[0015] Among them, the water collection trough plays a role in guiding downward drainage. The accumulated water falls from the outer water hole to the lower end of the upper cover top plate and enters the water collection trough. It is discharged downward to the drainage trough through the action of the middle rotating component. Here, the mesh holes on the mesh plate play a filtering role for the accumulated water at the bottom of the drainage trough.

[0016] Preferably, the mesh holes on the mesh disk are tapered in cross section, and the diameter of the upper end of the mesh holes is smaller than the diameter of the lower end of the mesh holes, so that impurities are not easy to pass through the mesh holes, thereby avoiding blockage of the manhole pipe.

[0017] Preferably, the upper surface of the excretion scraper is fixedly connected with elastic metal rods distributed in an array, and the ends of the elastic metal rods are fixedly connected with rings, and the diameter of the rings is larger than the diameter of the mesh holes on the mesh disk.

[0018] The discharge scraper is located below the mesh disk. When the discharge scraper is cleaning the mesh disk, the elastic metal rod on the discharge scraper is first compressed and deformed. When the elastic metal rod runs to the mesh hole, the elastic metal rod will poke holes in the mesh hole from bottom to top under its own elastic restoring force. As the discharge scraper continues to run, the elastic metal rod will deform again under the influence of the cross-section of the mesh hole. At this time, the ring on the elastic metal rod will dig out the impurities accumulated inside the mesh hole.

[0019] Preferably, the first pop-up member and the second pop-up member are both electromagnetic latches, the first circulation groove and the second circulation groove have the same expansion pattern, and the first circulation groove is located on the outer surface of the rotating block.

[0020] Preferably, a control system is provided at the bottom of the top plate of the upper end cover, and the control system controls the electrical components inside the device.

[0021] Compared with the prior art, the invention has the following advantages:

[0022] 1. In the present invention, when it rains heavily, the rainwater falling into the water collection tank through the outer water holes impacts the lower spiral drainage blades to form a rotating force, driving the middle rotating shaft and the upper spiral drainage blades to rotate synchronously. The reverse thrust generated by the reverse rotation of the upper spiral drainage blades pushes the rainwater falling into the drainage tank through the middle water holes to the upper end of the top plate of the upper end cover, dispersing the debris on the upper end of the manhole cover, thereby ensuring the normal drainage of the manhole cover;

[0023] 2. In the present invention, when heavy rain occurs, rainwater falling into the water collection tank through the outer water holes impacts the lower spiral drainage blades to form a rotational force, driving the middle rotating shaft, the lower spiral drainage blades and the discharge scraper to rotate synchronously, pushing the accumulated water and debris falling into the bottom of the drainage tank into the filter cartridge at the lower end of the hanging tank, filtering through the drainage hole II to retain the debris in the filter cartridge, thereby ensuring the smooth flow of the drainage pipe.

[0024] 3. In the present invention, the double-axis motor is controlled by judging the amount of rain according to the height of the rising float, and at the same time, the torque of the middle rotating shaft is detected to detect whether the manhole pipe is blocked. If so, the blockage is rotated, squeezed and crushed by the cooperation of the reciprocating component and the middle rotating shaft. At the same time, during the operation of the reciprocating component, it is detected whether the carrying capacity of the filter component has reached the upper limit. If so, the control system transmits a signal to the background, so that people are sent to clear the blockage or set a safety mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axial side view of the overall structure of the present invention.

[0026] Figure 2 It is the front view of the overall structure of the present invention.

[0027] Figure 3 for Figure 2 Sectional structural view at AA in the middle.

[0028] Figure 4 for Figure 3 Enlarged schematic diagram of the local structure at point B in the middle.

[0029] Figure 5 for Figure 3 Enlarged schematic diagram of the local structure at point C in the middle.

[0030] Figure 6 It is an axial side view of the upper end cover assembly in the present invention.

[0031] Figure 7 It is an axial half-section view of the upper end cover assembly in the present invention.

[0032] Figure 8 It is an axial side view of the lower sleeve assembly in the present invention.

[0033] Fig. 9 It is a half-section view of the axial side of the lower sleeve assembly of the present invention.

[0034] Fig.10 It is an axial side view of the intermediate rotating component in the present invention.

[0035] Fig.11 for Fig.10 Enlarged schematic diagram of the local structure at point H in the middle.

[0036] Fig.12 It is an axial side view of the filter assembly in the present invention.

[0037] Fig.13 It is an axial half-section view of the filter assembly in the present invention.

[0038] Fig.14 It is a half-section view of the overall structure of the second embodiment of the present invention.

[0039] Fig.15 for Fig.14 Enlarged schematic diagram of the local structure at point D in the middle.

[0040] Fig.16 It is a structural schematic diagram of the rainfall detection device in the present invention.

[0041] Fig.17 It is a structural schematic diagram of the network disk in the present invention.

[0042] Fig.18 It is an expanded view of the first circulation groove and the second circulation groove of the present invention.

[0043] In the figure: 1. upper end cover assembly; 101. upper end cover top plate; 102. middle water hole; 103. outer water hole; 2. lower sleeve assembly; 201. lower connecting flange; 202. lower sleeve; 203. movable sleeve; 204. water collecting trough; 205. drainage trough; 3. rainfall detection device; 301. upper fixed seat; 302. first circulation trough; 303. rotating block; 304. movable cavity; 305. movable rod; 306. 06. Float; 4. Intermediate rotating assembly; 401. Bracket; 402. Dual-axis motor; 403. Intermediate rotating shaft; 404. Lower spiral drainage blade; 405. Drainage scraper; 406. Second circulation trough; 5. Filter assembly; 501. Filter cartridge; 502. Clamp; 503. Drain hole; 6. Reciprocating assembly; 601. Connecting rib plate; 602. Net disk; 7. Annular filter; 8. Elastic metal rod; 9. Ring. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0045] Embodiment 1

[0046] See also Figures 1 to 13 The present invention provides a technical solution: a drainage and filtering manhole cover, including an upper end cover assembly 1, the upper end cover assembly 1 includes an upper end cover top plate 101, and a lower sleeve assembly 2 is fixedly connected to the lower end of the upper end cover assembly 1, the lower sleeve assembly 2 includes a lower connecting flange 201 annularly fixedly connected to the upper end cover top plate 101, an upper fixed seat 301 is fixedly connected to the middle of the upper end cover top plate 101, and an intermediate rotating assembly 4 is sleeved on the middle of the upper fixed seat 301, a lower sleeve 202 is fixedly connected to the lower end of the lower connecting flange 201, and a filter cartridge 501 assembly is provided at the bottom of the lower sleeve 202.

[0047] Among them, the upper end cover assembly 1 plays a protective role relative to the upper end of the lower sleeve assembly 2, and the lower sleeve assembly 2 plays a bottom supporting and limiting role relative to the upper end cover assembly 1. During installation, the lower sleeve 202 is facing the manhole pipe, and the lower connecting flange 201 is installed in the installation groove at the upper end of the manhole pipe. The upper fixed seat 301 plays a rotational supporting role relative to the middle rotating assembly 4. The middle rotating assembly 4 plays a downward spiral water delivery role in the middle of the lower sleeve assembly 2, and the filter assembly 5 plays a filtering role, and the filtered debris is collected and stored.

[0048] Furthermore, the upper end surface of the upper end cover top plate 101 is provided with middle water holes 102 which are evenly distributed in the circumferential direction, and the outer side of the middle water holes 102 is provided with outer water holes 103 which are evenly distributed in the circumferential direction.

[0049] When it rains, rainwater accumulates on the road surface, and the accumulated water flows from the top to the bottom of the upper end cover top plate 101 through the middle water hole 102 and the outer water hole 103 on the upper end cover top plate 101 .

[0050] Furthermore, a water outlet hole connected to the middle water hole 102 is provided at the bottom of the upper fixing seat 301 , and the upper fixing seat 301 is located directly below the middle water hole 102 .

[0051] Here, the upper fixing seat 301 plays a role of an upper end fixing support relative to the middle rotating shaft 403, and the water outlet hole plays a role of storing reverse drainage relative to the upper end of the middle rotating component 4.

[0052] Furthermore, a water collecting groove 204 is opened on the upper end surface of the middle downward connecting flange 201 of the lower sleeve 202, and a drainage groove 205 is opened at the lower end of the water collecting groove 204 to the bottom of the lower sleeve 202, and the bottom diameter of the drainage groove 205 is equal to the outer ring diameter of the filter cartridge 501, and the bottom of the drainage groove 205 is fixedly connected with connecting ribs 601 distributed in an array, and the end of the connecting ribs 601 away from the lower sleeve 202 is fixedly connected with a mesh plate 602.

[0053] Among them, the water collection trough 204 serves as a downward drainage guide. The accumulated water falls from the outer water hole 103 to the lower end of the upper cover top plate 101 and enters the water collection trough 204. It is discharged downward to the drainage trough 205 through the action of the intermediate rotating component 4. Here, the mesh holes on the mesh plate 602 play a filtering role for the accumulated water at the bottom of the drainage trough 205.

[0054] Furthermore, a hanging groove is provided at the bottom of the lower sleeve 202, and the upper end of the filter assembly 5 is engaged with the hanging groove.

[0055] The hanging groove plays a role of clamping and limiting relative to the clamping head 502 at the upper end of the filter cartridge 501, and the connecting rib plate 601 plays a role of strengthening the strength of the hanging groove body.

[0056] Furthermore, the intermediate rotating component 4 includes an intermediate rotating shaft 403 which is fitted with the upper fixed seat 301 through a bearing, and lower spiral drainage blades 404 arranged in a spiral line are fixedly connected from top to bottom on the outer circle of the intermediate rotating shaft 403, and drainage scrapers 405 distributed in an array for cleaning the mesh plate 602 are fixedly connected below the lower spiral drainage blades 404.

[0057] When the accumulated water in the trough 204 falls into the upper end of the lower spiral drainage blade 404, the impact force of the falling rainwater drives the intermediate rotating shaft 403 to rotate in the upper fixed seat 301, and at the same time, the rainwater in the trough 204 forms a downward spiral conveying force, which speeds up the downward discharge of rainwater. When the rainwater falls into the drainage trough 205, the rotation of the discharge scraper 405 pushes the debris in the rainwater into the filter cartridge 501 to prevent the debris from being retained at the bottom of the drainage trough 205.

[0058] Furthermore, the upper end surface of the intermediate rotating shaft 403 is fixedly connected to the rotating block 303 , and the upper rotating shaft is fixedly connected to the upper end surface of the rotating block 303 , and the outer side of the upper rotating shaft is fixedly connected to an upper spiral drainage blade with a rotation direction opposite to that of the lower spiral drainage blade 404 .

[0059] When the middle rotating shaft 403 rotates, it drives the upper rotating support plate, the upper rotating shaft and the upper spiral drainage blades to rotate together, so that the rainwater falling into the drainage groove 205 from the middle water hole 102 is discharged from the port of the middle water hole 102 under the action of the reverse spiral thrust of the upper spiral drainage blades, and has a reverse impact on the debris retained on the upper end of the upper end cover top plate 101, thereby dispersing the debris and ensuring the drainage capacity of the entire manhole cover.

[0060] Furthermore, the filter assembly 5 includes a filter cartridge 501 having an annular U-shaped groove structure, and a clamp 502 that fits the suspension groove is fixedly connected to the inner and outer sides of the upper end of the filter cartridge 501, and an array of drainage holes 503 are provided on the inner and outer walls of the filter cartridge 501.

[0061] The clamp head 502 serves to fix the upper end of the filter cartridge 501 , the drainage hole 503 serves to filter drainage, and the filter cartridge 501 serves to store debris that falls from the drainage trough 205 .

[0062] In the present invention, when it rains, or when a large amount of water accumulates on the road due to other reasons, the accumulated water will be discharged from the middle water hole 102 and the outer water hole 103 to the lower end of the upper end cover top plate 101, and the accumulated water discharged downward from the outer water hole 103 falls into the upper end of the lower spiral drainage blade 404 in the water collecting trough 204 to form an impact thrust, driving the middle rotating shaft 403 to rotate in the middle of the upper fixed seat 301, and falls into the accumulated water at the bottom of the drainage trough 205. Part of the accumulated water is filtered through the mesh holes on the net plate 602 and then discharged downward, and part of the accumulated water and debris in the accumulated water are discharged under the rotation thrust of the discharge scraper 405 at the bottom of the middle rotating shaft 403 (the discharge scraper 405 in this example is located on the net plate 60 2 and in contact with the mesh disk 602), is pushed to the hanging groove port at the lower end of the drainage groove 205 and falls downward into the filter cartridge 501. The accumulated water entering the filter cartridge 501 is filtered through the drainage hole 503 and then discharged, so that the debris is retained in the filter cartridge 501; under the action of the rotational force of the intermediate rotating shaft 403, the upper rotating support plate, the upper rotating shaft and the upper spiral drainage blade are driven to rotate together, and the accumulated water falling into the drainage groove 205 from the intermediate water hole 102 is pushed back to the upper end of the upper end cover top plate 101 through the intermediate water hole 102 under the action of the reverse spiral thrust of the upper spiral drainage blade, so as to disperse the debris retained on the upper end cover top plate 101 and ensure the normal drainage of the manhole cover.

[0063] Embodiment 2

[0064] Based on the previous embodiment, although the above embodiment can reduce the situation of manhole pipe blockage, in embodiment one, the rotation of the intermediate rotating shaft 403 is completely driven by water flow. When the manhole pipe is blocked, the rotation of the intermediate rotating shaft 403 will gradually decrease until it stops. At this time, the manhole pipe will still cause the problem of unsmooth urban drainage; at the same time, due to the limited carrying capacity of the filter component 5 and the limited use time, it is impossible to perform fixed-point collection and cleaning according to the actual carrying capacity of the filter component 5. In view of this, improvements are made on the basis of embodiment one, and the improved technical solution is as follows.

[0065] Reference Figures 14 to 18A drainage and filtering manhole cover comprises an upper end cover assembly 1, the upper end cover assembly 1 comprises an upper end cover top plate 101, and a rainfall detection device 3 is fixedly connected to the middle of the upper end cover top plate 101; a lower sleeve assembly 2 is provided at the lower end of the upper end cover assembly 1, and the lower sleeve assembly 2 comprises a lower connecting flange 201, and a lower sleeve 202 is fixedly connected to the lower end of the lower connecting flange 201, and a movable sleeve 203 is axially slidably connected to the inner ring of the lower sleeve 202, and a filtering assembly 5 is provided at the bottom of the movable sleeve 203, and a reciprocating assembly 6 is fixedly connected to the bottom of the inner ring of the movable sleeve 203; an intermediate rotating assembly 4 connected to the rainfall detection device 3 is provided in the middle of the reciprocating assembly 6; the rainfall detection device 3 comprises an upper fixed seat 301 fixedly connected to the bottom of the upper end cover top plate 101, and a rotating block 30 is rotatably connected to the first circulation groove 302 through a first pop-up member inside the upper fixed seat 301 3. A movable cavity 304 is provided inside the rotating block 303, and a movable rod 305 is slidably connected inside the movable cavity 304, and a float 306 is fixedly connected to the top of the movable rod 305; the intermediate rotating component 4 includes a bracket 401 fixedly connected to the inner ring of the lower sleeve 202, a dual-axis motor 402 is fixedly connected to the middle part of the bracket 401, one of the output shafts of the dual-axis motor 402 is fixedly connected to the bottom of the rotating block 303, and the other output shaft of the dual-axis motor 402 is fixedly connected to the intermediate rotating shaft 403 through a locking component, and lower spiral drainage blades 404 arranged in a spiral line are fixedly connected to the outer wall of the intermediate rotating shaft 403, and array-distributed discharge scrapers 405 are fixedly connected below the lower spiral drainage blades 404, and a second circulation groove 406 for driving the reciprocating component 6 to move is provided between the lower spiral drainage blades 404 and the discharge scrapers 405.

[0066] A rainfall detection device 3 is provided to detect the amount of rainfall and thus control the operation of the intermediate rotating component 4. A torque sensor is provided inside the intermediate rotating shaft 403. The blockage condition in the manhole and whether the filter component 5 has reached saturation can be determined by detecting the value detected by the torque sensor.

[0067] Furthermore, the reciprocating component 6 includes a connecting rib plate 601 fixedly connected to the bottom of the movable sleeve 203 and distributed in an array, a mesh disk 602 fixedly connected to the other end of the connecting rib plate 601, the mesh disk 602 is rotatably connected to the second circulation groove 406 through a second pop-up member, and a hanging groove is provided between the outer periphery of the mesh disk 602 and the inner bottom of the movable sleeve 203.

[0068] The mesh plate 602 in this example has a conical cross section and a certain slope, so that impurities falling from above can more easily enter the containing area of ​​the filter cartridge 501 of the U-shaped trough structure.

[0069] Furthermore, an annular filter screen 7 is fixedly connected to the bottom of the outer ring of the upper end cover top plate 101, and one end of the annular filter screen 7 away from the upper end cover top plate 101 is slidably connected to the top of the lower sleeve 202. By providing the annular filter screen 7, the annular filter screen 7 and the lower sleeve 202 slide axially, so that under the cooperation of the first pop-up member and the rotating block 303, the upper end cover top plate 101 is slightly opened in a reciprocating cycle, so that the accumulated water can quickly enter the manhole pipe, and the annular filter screen 7 blocks some larger impurities to prevent the impurities from clogging the manhole pipe.

[0070] Furthermore, a water collecting groove 204 is provided on the upper end surface of the movable sleeve 203, and a drainage groove 205 is provided on the lower end surface of the movable sleeve 203. The bottom of the drainage groove 205 is fixedly connected to the connecting rib plate 601, and the bottom diameter of the drainage groove 205 is equal to the outer diameter of the filter cartridge 501. The water collecting groove 204 is in an inverted cone shape, so that the gap between the water collecting groove 204 on the upper end surface of the movable sleeve 203 and the lower spiral drainage blade 404 is reduced under the cooperation of the second ejection member and the second circulation groove 406 by the intermediate rotating shaft 403, so that the lower spiral drainage blade 404 can crush and clean the debris in the manhole pipe.

[0071] Furthermore, the cross section of the mesh holes on the mesh plate 602 is conical, and the diameter of the upper end of the mesh hole is smaller than the diameter of the lower end of the mesh hole, so that impurities are not easy to pass through the mesh hole, thereby avoiding clogging of the manhole pipe.

[0072] Furthermore, the upper surface of the excretion scraper 405 is fixedly connected with elastic metal rods 8 distributed in an array, and the ends of the elastic metal rods 8 are fixedly connected with rings 9, and the diameter of the rings 9 is larger than the diameter of the mesh holes on the mesh disk 602. The excretion scraper 405 is located below the mesh disk 602. When the excretion scraper 405 cleans the mesh disk 602, the elastic metal rods 8 on the excretion scraper 405 are first compressed and deformed. When the elastic metal rods 8 run to the mesh holes, the elastic metal rods 8 will poke holes in the mesh holes from bottom to top under their own elastic restoring force. As the excretion scraper 405 continues to run, the elastic metal rods 8 are deformed again under the influence of the cross-section of the mesh holes, and the rings 9 on the elastic metal rods 8 will take out the impurities accumulated inside the mesh holes.

[0073] Furthermore, both the first pop-up member and the second pop-up member are electromagnetic latches, the first circulation groove 302 and the second circulation groove 406 have the same deployment pattern, and the first circulation groove 302 is located on the outer surface of the rotating block 303 .

[0074] The locking assembly is an electromagnetic latch; in the initial state, the first pop-up piece contracts, so that the first pop-up piece on the upper fixed seat 301 and the first circulation groove 302 on the rotating block 303 are in a non-contact state; the second pop-up piece contracts, so that the second pop-up piece on the net disk 602 and the second circulation groove 406 on the intermediate rotating shaft 403 are in a non-contact state; the locking assembly contracts, the output shaft of the dual-axis motor 402 and the intermediate rotating shaft 403 are in a non-locked state, and the output shaft of the dual-axis motor 402 is rotationally connected with the intermediate rotating shaft 403; the bottom of the float 306 contacts the top of the rotating block 303, and the dual-axis motor 402 does not move.

[0075] When it is light rain, rainwater on the road surface flows into the lower sleeve 202 and the movable sleeve 203 through the outer water holes 103 and the middle water holes 102 on the upper end cover top plate 101. Since the upper fixed seat 301 is provided with a water outlet hole, the flow rate of rainwater flowing into the upper fixed seat 301 through the middle water holes 102 is lower than the flow rate of rainwater flowing out of the water outlet hole, so that the float 306 will not float up and the dual-axis motor 402 will not start; after entering the lower sleeve 202 and the movable sleeve 203, the rainwater will flow into the lower spiral drainage blade 40 The upper end of the drain 4 forms an impact thrust, which drives the middle rotating shaft 403 to rotate. The lower spiral drainage blade 404 guides the rainwater to the drain groove 205. The accumulated water falling into the bottom of the drain groove 205 is filtered through the mesh holes on the net plate 602 and then discharged downward. Part of the accumulated water and the debris in the accumulated water enter the filter cartridge 501 along the inclined surface of the net plate 602 (the net plate 602 in this embodiment is conical). The accumulated water entering the filter cartridge 501 is filtered through the drainage holes 503 and then discharged, so that the debris is retained in the filter cartridge 501.

[0076] When it rains moderately, the flow rate of rainwater flowing into the upper fixed seat 301 through the middle water hole 102 is greater than the flow rate of rainwater flowing out of the water outlet hole, and then the float 306 will float up, and at this time the locking assembly pops up, so that the output shaft of the dual-axis motor 402 and the intermediate rotating shaft 403 are in a locked state, and the dual-axis motor 402 is started, and the two output shafts of the dual-axis motor 402 respectively drive the rotating block 303 and the intermediate rotating shaft 403 to rotate. At this time, the rotation speed of the intermediate rotating shaft 403 is greater than the rotation speed when the rainwater drives the intermediate rotating shaft 403 to rotate; at the same time, due to the rotation The movable block 303 is slidably connected to the floating ball 306 through the movable rod 305, so that when the rotating block 303 rotates, the floating ball 306 will not be affected; when the output shaft of the dual-axis motor 402 drives the intermediate rotating shaft 403 to rotate, the control system always monitors the lifting height of the floating ball 306 and the torque of the intermediate rotating shaft 403. The lifting height of the floating ball 306 can reflect the flow rate of rainwater entering the lower sleeve 202 and the movable sleeve 203, and the torque of the intermediate rotating shaft 403 can reflect whether the lower sleeve 202 and the movable sleeve 203 are inside. In case of blockage, by detecting the lifting height of the float 306 and the torque of the intermediate rotating shaft 403, the torque of the intermediate rotating shaft 403 under different lifting heights of the float 306 can be obtained; if the torque of the intermediate rotating shaft 403 detected by the control system is greater than the set value of the torque of the float 306 at a certain height, the control system controls the second pop-up member to pop out; so that the second pop-up member on the net disk 602 is in contact with the second circulation groove 406 on the intermediate rotating shaft 403, so that the intermediate rotating shaft 403 passes through the first The cooperation between the second circulation groove 406 and the second pop-up member drives the movable sleeve 203, the reciprocating assembly 6, and the filter assembly 5 to circulate up and down along the second circulation groove 406; in the process of the movable sleeve 203 rising, the gap between the water collecting groove 204 on the upper end surface of the movable sleeve 203 and the lower spiral drainage blade 404 is reduced, and the lower spiral drainage blade 404 on the intermediate rotating shaft 403 is able to break and clean up the debris accumulated in the movable sleeve 203, thereby reducing the resistance encountered by the intermediate rotating shaft 403 and gradually returning to normal torque.

[0077] The expanded view of the second circulation tank 406 is as follows Fig.18As shown, if the torque of the intermediate rotating shaft 403 detected by the control system is greater than the set value, the set value is X; at this time, the control system controls the second pop-up member to pop out, so that the second pop-up member is in contact with the A section of the second circulation groove 406; at this time, the torque of the intermediate rotating shaft 403 is X+A, and A is the resistance exerted by the blocked impurities on the intermediate rotating shaft 403; as the second pop-up member runs to the B section of the second circulation groove 406, the intermediate rotating shaft 403 drives the movable sleeve 203, the reciprocating assembly 6, The filter assembly 5 moves upward along the second circulation groove 406, so that the gap between the water collection groove 204 on the upper end surface of the movable sleeve 203 and the lower spiral drainage blade 404 is reduced (the diameter of the lower spiral drainage blade 404 at the upper end of the intermediate rotating shaft 403 is greater than the diameter of the lower spiral drainage blade 404 at the lower end of the intermediate rotating shaft 403). At this time, the torque of the intermediate rotating shaft 403 is X+A+B, where B is the resistance exerted on the intermediate rotating shaft 403 by the sum of the weight of the movable sleeve 203, the reciprocating assembly 6, the filter assembly 5 and the impurities in the filter assembly 5. Since the resistance of the movable sleeve 203, the reciprocating component 6 and the filter component 5 to the intermediate rotating shaft 403 is a fixed value, the control system can obtain the weight of the impurities in the filter component 5 when the second pop-up member runs to the B section of the second circulation groove 406. If it is detected that the weight of the impurities in the filter component 5 exceeds the carrying capacity, the control system transmits a signal to the background, so that someone is sent to clear the blockage or set a safety mark; as the second pop-up member runs to the C section of the second circulation groove 406, the torque of the intermediate rotating shaft 403 is still X+A+B, at this time, the lower spiral drainage blade 404 on the intermediate rotating shaft 403 can crush and clean the debris accumulated in the movable sleeve 203, so that the torque of the intermediate rotating shaft 403 is reduced, and the reciprocating operation is carried out in this way; when the second pop-up member runs to the A section of the second circulation groove 406 again, the torque of the intermediate rotating shaft 403 detected by the control system is X, indicating that the blockage is eliminated, and the control system controls the second pop-up member to contract so that the second pop-up member on the network disk 602 and the second circulation groove 406 on the intermediate rotating shaft 403 are in a non-contact state.

[0078] After the rain stops, the control system controls the second pop-up member to pop out again, so that the second pop-up member is in contact with section A of the second circulation groove 406; as the second pop-up member runs to section B of the second circulation groove 406, the intermediate rotating shaft 403 drives the movable sleeve 203, the reciprocating assembly 6, and the filter assembly 5 to move upward along the second circulation groove 406 through the second circulation groove 406 and the second pop-up member, so that the control system obtains the weight of the impurities in the filter assembly 5; thereby determining whether the impurities in the filter assembly 5 need to be collected and recycled.

[0079] When it rains heavily, the specific working conditions are the same as when it rains moderately. However, when the height of the float 306 reaches the maximum, the control system controls the first pop-up member to pop out, so that the first pop-up member on the upper fixed seat 301 is in contact with the first circulation groove 302 on the rotating block 303. As the dual-axis motor 402 runs, the first circulation groove 302 on the rotating block 303 cooperates with the first pop-up member to drive the upper end cover top plate 101 to open slightly for an up and down reciprocating cycle, so that the accumulated water can quickly enter the manhole pipe. At the same time, when the upper end cover top plate 101 is opened slightly for an up and down reciprocating cycle, the accumulated impurities on the top can be cleaned up at the same time to ensure the drainage capacity of the entire manhole cover; and the annular filter screen 7 blocks some larger impurities to prevent the impurities from clogging the manhole pipe.

[0080] At the same time, if the height of the float 306 rises to the maximum, and the torque generated by the intermediate rotating shaft 403 detected by the control system is significantly different from the height of the float 306, it indicates that the water outlet on the upper fixed seat 301 is clogged. After that, the control system still controls the first pop-up member to pop out, so that the first pop-up member on the upper fixed seat 301 is in contact with the first circulation groove 302 on the rotating block 303. When the rotating block 303 drives the upper end cover top plate 101 to open slightly for an up and down reciprocating cycle, it continuously collides with the top of the lower sleeve 202, thereby clearing the blockage in the drainage hole 503 through vibration.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage and filtering manhole cover, characterized in that: It comprises an upper end cover assembly, the upper end cover assembly comprises an upper end cover top plate, a rain detection device is fixedly connected to the middle of the upper end cover top plate; a lower sleeve assembly is provided at the lower end of the upper end cover assembly, the lower sleeve assembly comprises a lower connecting flange, a lower sleeve is fixedly connected to the lower end of the lower connecting flange, a movable sleeve is axially slidably connected to the inner ring of the lower sleeve, a filter assembly is provided at the bottom of the movable sleeve, a reciprocating assembly is fixedly connected to the bottom of the inner ring of the movable sleeve; an intermediate rotating assembly connected to the rain detection device is provided at the middle of the reciprocating assembly; The rainfall detection device comprises an upper fixed seat fixedly connected to the bottom of the upper end cover top plate, a rotating block is rotatably connected to the first circulation groove through a first pop-up member inside the upper fixed seat, an active cavity is opened inside the rotating block, an active rod is slidably connected inside the active cavity, and a floating ball is fixedly connected to the top of the active rod; The intermediate rotating component includes a bracket fixedly connected to the inner ring of the lower sleeve, a dual-axis motor is fixedly connected to the middle part of the bracket, one of the output shafts of the dual-axis motor is fixedly connected to the rotating block, and the other output shaft of the dual-axis motor is fixedly connected to the intermediate rotating shaft through a locking component, and lower spiral drainage blades arranged in a spiral line are fixedly connected to the outer wall of the intermediate rotating shaft, and array-distributed drainage scrapers are fixedly connected below the lower spiral drainage blades, and a second circulation groove for driving the reciprocating component to move is provided between the lower spiral drainage blades and the drainage scrapers.

2. A drainage and filtering manhole cover according to claim 1, characterized in that: The reciprocating assembly includes a connecting rib plate fixedly connected to the bottom of the movable sleeve and distributed in an array, the other end of the connecting rib plate is fixedly connected to a mesh disk, the mesh disk is rotatably connected to the second circulation groove through a second pop-up member, and a hanging groove is provided between the outer periphery of the mesh disk and the inner bottom of the movable sleeve.

3. A drainage and filtering manhole cover according to claim 1, characterized in that: An annular filter screen is fixedly connected to the bottom of the outer ring of the upper end cover top plate, and one end of the annular filter screen away from the upper end cover top plate is slidably connected to the top of the lower sleeve.

4. A drainage and filtering manhole cover according to claim 1, characterized in that: The middle part of the top plate of the upper end cover is provided with middle water holes which are evenly distributed in the circumference, and the outer side of the middle water hole is provided with outer water holes which are evenly distributed in the circumference.

5. The drainage and filtering manhole cover according to claim 1, characterized in that: The filter assembly includes a filter cartridge with an annular U-shaped groove structure, the inner and outer sides of the upper end of the filter cartridge are fixedly connected with clamps that match the hanging groove, and the inner and outer walls of the filter cartridge are provided with drainage holes distributed in an array.

6. A drainage and filtering manhole cover according to claim 1, characterized in that: The upper end surface of the movable sleeve is provided with a water collecting groove, and the lower end surface of the movable sleeve is provided with a drainage groove. The bottom of the drainage groove is fixedly connected to the connecting rib plate, and the bottom diameter of the drainage groove is equal to the outer ring diameter of the filter cartridge.

7. A drainage and filtering manhole cover according to claim 2, characterized in that: The cross section of the mesh holes on the mesh disk is tapered.

8. A drainage and filtering manhole cover according to claim 7, characterized in that: The upper surface of the excretion scraper is fixedly connected with elastic metal rods distributed in an array, and the ends of the elastic metal rods are fixedly connected with rings, and the diameter of the rings is larger than the diameter of the mesh holes on the mesh disk.

9. The drainage and filtering manhole cover according to claim 2, characterized in that: The first ejection member and the second ejection member are both electromagnetic latches, the first circulation groove and the second circulation groove have the same expansion pattern, and the first circulation groove is located on the outer surface of the rotating block.

10. The drainage and filtering manhole cover according to claim 1, characterized in that: A control system is provided at the bottom of the top plate of the upper end cover, and the control system controls the electrical components inside the device.

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