CN212478015U - Municipal administration road drainage desilting system - Google Patents
Municipal administration road drainage desilting system Download PDFInfo
- Publication number
- CN212478015U CN212478015U CN202020821411.8U CN202020821411U CN212478015U CN 212478015 U CN212478015 U CN 212478015U CN 202020821411 U CN202020821411 U CN 202020821411U CN 212478015 U CN212478015 U CN 212478015U
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- filter
- roadbed
- dredging
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- assembly
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Abstract
The utility model belongs to the technical field of the town road technique and specifically relates to a town road drainage desilting system is related to, including driving road bed and pedestrian road bed, the escape canal has been seted up on the driving road bed, is provided with the apron in the escape canal, is provided with the filter in the escape canal, is provided with on the filter to be used for carrying out the cleaning device who clears up to the silt on the filter, and cleaning device is including the drive assembly who is used for carrying out the scraper blade of clearing up and be used for driving the scraper blade motion to the filter, and drive assembly sets up in the driving road bed, and the scraper blade sets up on drive assembly, and the scraper blade butt is in the upper surface of filter. Through being provided with the filter in the escape canal, filter silt, be provided with cleaning device on the filter, drive the scraper blade motion through drive assembly, can carry out automatic clearance with the silt on the filter, do not need the manual work to clear up, the simple operation, artifical intensity of labour is less.
Description
Technical Field
The utility model belongs to the technical field of the town road technique and specifically relates to a town road drainage desilting system is related to.
Background
At present, every year rainy season comes temporarily, urban road ponding's the condition can all appear in many cities, and cause the very big part reason of this kind of condition because sewer silt on the town road is too much, is difficult to the drainage after blockking up to lead to road ponding, pedestrian's vehicle comes and goes all need wade, consequently need clear up silt through grab bucket type inspection shaft desilting car and spiral desilting car, dredge the sewer, make things convenient for the drainage.
The existing Chinese patent with the publication number of CN207727726U discloses a municipal road engineering anti-blocking dredging system, which comprises a lane and a pedestrian subgrade, wherein a drainage ditch is arranged at the boundary of the lane and the pedestrian subgrade, a dust storage groove is arranged at one side of the drainage ditch close to the pedestrian subgrade, and the dust storage groove is communicated with the drainage ditch through the drainage hole.
The above prior art solutions have the following drawbacks: this stifled desilting system is prevented to town road engineering can carry out effectual clearance to silt, but at the clearance in-process, when the silt mummification, needs the raceway feedwater moist, needs the manual work to add water in the water tank, complex operation, and artifical intensity of labour is great, consequently, needs improve it.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art existence, one of the purposes of the utility model is to provide a town road drainage desilting system, it filters silt through being provided with the filter in the escape canal, is provided with cleaning device on the filter, drives the scraper blade motion through drive assembly, can carry out automatic clearance with the silt on the filter, does not need the manual work to clear up, and the simple operation, artifical intensity of labour is less.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a town road drainage desilting system, includes driving roadbed and pedestrian roadbed, the escape canal has been seted up on the driving roadbed, be provided with the apron on the escape canal, be provided with the filter in the escape canal, be provided with the cleaning device who is used for going on clearing up the silt on the filter, cleaning device is including the drive assembly who is used for carrying out the scraper blade of clearing up and is used for driving the scraper blade motion to the filter, drive assembly sets up in the driving roadbed, the scraper blade sets up on drive assembly, and the scraper blade butt in the upper surface of filter.
Through adopting above-mentioned technical scheme, ponding on the town road enters into the escape canal from the wash port on the apron to filter through the filter, when the silt clearance that produces in the filtering process, start drive assembly, drive the scraper blade and be sharp reciprocating motion on filter 5, carry out effectual clearance to the silt on the filter, do not need the manual work to clear up, the simple operation, artifical intensity of labour is less.
The present invention may be further configured in a preferred embodiment as: the drive assembly includes drive arrangement and rotation screw rod, drive arrangement is fixed to be set up in the driving roadbed, it sets up on drive arrangement's output shaft to rotate the screw rod, on the rotation screw rod was located to the scraper blade cover, scraper blade and rotation screw rod screw-thread fit, on the scraper blade along the ascending both ends of horizontal direction respectively the butt on driving roadbed and pedestrian's roadbed, and the lower surface butt of scraper blade in the upper surface of filter.
Through adopting above-mentioned technical scheme, drive arrangement is fixed to be set up in the driving road bed, starts drive arrangement, drives and rotates the screw rod and rotate, can drive the scraper blade and be straight reciprocating motion on the filter, carries out silt on the filter and carries out effectual clearance, simple operation.
The present invention may be further configured in a preferred embodiment as: the pedestrian roadbed internal fixation is provided with a spraying device used for cleaning the filter plate, and the spraying device is arranged below the filter plate.
Through adopting above-mentioned technical scheme, be provided with spray set at the pedestrian road bed internal fixation, start spray set, spray set sprays the filter, carries out timely clearance to the silt that enters into in the filter hole, can avoid the filter to cross the filter hole and be blockked up.
The present invention may be further configured in a preferred embodiment as: the spraying device comprises a spraying assembly used for cleaning the filter plate and a water delivery assembly used for delivering water into the spraying assembly, the water delivery assembly is fixedly arranged in the pedestrian subgrade, and the spraying assembly is arranged on the water delivery assembly.
Through adopting above-mentioned technical scheme, carry the water in the escape canal through water delivery subassembly, in the water delivery subassembly carries water to spray set, sprays water through spray set, washs the filter, carries out the secondary use to the water in the escape canal, can avoid the waste at water source, and is energy-concerving and environment-protective.
The present invention may be further configured in a preferred embodiment as: the water delivery subassembly includes inlet channel and water pump, the water pump is fixed to be set up in the pedestrian roadbed, the one end of inlet channel sets up in the water inlet of water pump, and the other end of inlet channel sets up in the bottom in escape canal.
Through adopting above-mentioned technical scheme, the water pump is fixed to be set up in the pedestrian roadbed, starts the water pump, extracts the water of escape canal bottom through the inlet channel to in carrying spray assembly, simple structure.
The present invention may be further configured in a preferred embodiment as: the spraying assembly comprises a spraying pipe and a high-pressure nozzle used for cleaning the filter plate, the spraying pipe is fixedly arranged at a water outlet of the water pump, the high-pressure nozzle is fixedly arranged on the spraying pipe, and the high-pressure nozzle is communicated with the spraying pipe.
Through adopting above-mentioned technical scheme, the water pump carries water spray pipe back in, and the water in the spray pipe jets through high pressure nozzle, washs the filter, the simple operation, and the cost is lower.
The present invention may be further configured in a preferred embodiment as: offer in the driving road bed and be used for carrying out the silt removal passageway of discharging with the silt on the filter, it sets up to arrange the slope of silt passageway, the one end of keeping away from the filter on arranging the silt passageway is provided with the desilting device, the desilting passageway has been seted up in the driving road bed, the desilting device sets up in the desilting passageway, the desilting device includes driving motor and is used for carrying out the auger of discharging with silt, driving motor fixes to set up in the driving road bed, the auger is fixed to be set up on driving motor's output shaft.
Through adopting above-mentioned technical scheme, row's silt passageway has been seted up in the driving roadbed for install the desilting device, start driving motor, drive the auger and rotate, with the vertical upwards transportation of silt, can carry out effectual processing with the silt that gets into in the desilting passageway, avoid silt to pile up in the desilting passageway, block up the desilting passageway, cause the unable normal work of this desilting system.
The present invention may be further configured in a preferred embodiment as: offer on the pedestrian road bed and be used for carrying out exhaust transfer passage with the silt on the auger, transfer passage and desilting passageway intercommunication, and the transfer passage slope sets up, be provided with collection silt case in the pedestrian road bed, collection silt case and pedestrian road bed sliding fit, collection silt case and transfer passage intercommunication, pedestrian road bed upper cover is equipped with the guard plate, and the guard plate sets up directly over collection silt case.
By adopting the technical scheme.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the filtering plate is arranged in the drainage ditch to filter the sludge, the cleaning device is arranged on the filtering plate, the driving assembly drives the scraping plate to move, the sludge on the filtering plate can be automatically cleaned, manual cleaning is not needed, the operation is convenient and fast, and the manual labor intensity is low;
2. the spraying device is fixedly arranged in the pedestrian subgrade and is started, the spraying device sprays the filter plate, sludge entering the filter hole is cleaned in time, and the filter hole of the filter plate can be prevented from being blocked;
3. through having seted up row's silt passageway in the driving roadbed for install the desilting device, start driving motor, drive the auger and rotate, with the vertical transportation that makes progress of silt, can carry out effectual processing with the silt that gets into in the desilting passageway, avoid silt to pile up in the desilting passageway, block up the desilting passageway, cause the unable normal work of this desilting system.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a sectional view showing a connection relationship of the dredging device and the transfer passage.
Reference numerals: 1. a traveling roadbed; 11. a sludge discharge channel; 12. dredging the channel; 2. a roadbed for pedestrian; 21. a delivery channel; 22. a protection plate; 3. a drainage ditch; 31. a drainage channel; 4. a cover plate; 5. a filter plate; 6. a cleaning device; 61. a squeegee; 62. a drive assembly; 621. a drive device; 622. rotating the screw; 7. a spraying device; 71. a spray assembly; 711. a shower pipe; 712. a high pressure nozzle; 72. a water delivery assembly; 721. a water inlet pipe; 722. a water pump; 8. a dredging device; 81. a drive motor; 82. a packing auger; 9. silt collection box.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a town road drainage desilting system, including driving roadbed 1 and pedestrian roadbed 2, seted up escape canal 3 on the driving roadbed 1, be provided with apron 4 on the escape canal 3. When water accumulates on the municipal road, the water enters the drainage ditch 3 from the drainage hole on the cover plate 4 and is drained. Be provided with filter 5 in the escape canal 3 for carry out effectual filtration to impurity, silt etc. in the aquatic, be provided with on the filter 5 and be used for carrying out the cleaning device 6 of clearance to the silt on the filter 5, carry out effectual clearance through cleaning device 6 to the silt on the filter 5, do not need the manual work to clear up, the simple operation, artifical intensity of labour is less. The cleaning device 6 comprises a scraper 61 for cleaning the filter plate 5 and a driving component 62 for driving the scraper 61 to move, the driving component 62 is arranged in the traffic bed 1, the scraper 61 is arranged on the driving component 62, and the scraper 61 abuts against the upper surface of the filter plate 5. When the sludge on the filter plate 5 needs to be cleaned, the driving assembly 62 is started to drive the scraper 61 to do linear reciprocating motion on the filter plate 5, so that the sludge on the filter plate 5 is effectively cleaned.
Referring to fig. 2 and 3, the driving assembly 62 includes a driving device 621 and a rotating screw 622, the driving device 621 is fixedly disposed in the traffic bed 1, and the driving device 621 may be directly formed by a motor. The rotating screw 622 is fixedly arranged on an output shaft of the driving device 621, when the filter plate 5 needs to be cleaned, the driving device 621 is started to drive the rotating screw 622 to rotate, the scraping plate 61 is sleeved on the rotating screw 622, and the scraping plate 61 is in threaded fit with the rotating screw 622. When rotating screw 622, because the both ends along the horizontal direction on the scraper blade 61 butt respectively on driving road bed 1 and pedestrian's bed 2, and the lower surface butt of scraper blade 61 in the upper surface of filter 5, rotate screw 622 and can drive scraper blade 61 and do straight reciprocating motion on filter 5, carry out effectual clearance with silt on the filter 5.
Referring to fig. 2 and 3, in order to better collect and treat the sludge on the filter plate 5, a sludge discharge channel 11 for discharging the sludge on the filter plate 5 is provided in the traffic roadbed 1, the sludge discharge channel 11 is obliquely arranged, and the two sludge discharge channels 11 are provided on the traffic roadbed 1 and are used for discharging the sludge pushed by the scraper 61. Arrange the one end of keeping away from filter 5 on the silt passageway 11 and be provided with dredging device 8, during scraper blade 61 reciprocating linear motion, promote silt two row's silt passageways 11 in, silt is from arranging silt passageway 11 landing to dredging device 8 departments to carry out effectual collection through dredging device 8 to silt. Set up desilting passageway 12 in driving road bed 1 for install desilting device 8, desilting device 8 sets up in desilting passageway 12, and desilting device 8 includes driving motor 81 and is used for carrying out exhaust auger 82 with silt, and driving motor 81 is fixed to be set up in driving road bed 1, and auger 82 is fixed to be set up on driving motor 81's output shaft. When the sludge entering the dredging channel 12 needs to be effectively treated, the driving motor 81 is started to drive the auger 82 to rotate, and the sludge is vertically conveyed upwards.
Referring to fig. 4, in order to effectively collect the sludge and timely remove the sludge to prevent the sludge from blocking the dredging channel 12, a conveying channel 21 for discharging the sludge on the auger 82 is provided on the roadbed 2, the conveying channel 21 is communicated with the dredging channel 12, and the conveying channel 21 is obliquely arranged. When being conveyed by the packing auger 82, the sludge can enter the conveying channel 21 and slide downwards in the conveying channel 21. Be provided with collection silt case 9 in the people's road bed 2, be used for carrying out effectual collection to silt, collection silt case 9 and 2 sliding fit of people's road bed, collection silt case 9 and transfer passage 21 intercommunication, make entering into collection silt case 9 that silt can be smooth, combine figure 1, people's road bed 2 and 1 upper cover of driving road bed are equipped with guard plate 22, the guard plate 22 of people's road bed 2 sets up directly over collection silt case 9, be used for the protection, prevent that the pedestrian is when the people's road bed 2 that does not have guard plate 22, drop in the passageway, can make things convenient for operating personnel to open guard plate 22 simultaneously, it is convenient to carry out convenient, timely clearance to desilting case 9. The guard plate 22 of the traveling roadbed 1 is arranged above the driving motor 81, so that the installation of the dredging device 8 is more convenient, and the maintenance of the dredging device 8 is convenient.
Referring to fig. 2 and 3, in order to avoid the filter 5 from being blocked in the using process, a spraying device 7 for cleaning the filter 5 is fixedly arranged in the roadbed 2, the spraying device 7 is arranged below the filter 5, the filter 5 is sprayed by the spraying device 7, and sludge entering the filter is cleaned in time.
Referring to fig. 2 and 3, the spray unit 7 includes a spray assembly 71 for cleaning the filter plates 5 and a water delivery assembly 72 for delivering water into the spray assembly 71, the water delivery assembly 72 being fixedly installed in the roadbed 2, and delivering water in the drainage ditch 3 through the water delivery assembly 72. The spraying assembly 71 is arranged on the water delivery assembly 72, the water delivery assembly 72 delivers water into the spraying assembly 71, and the water is sprayed by the spraying assembly 71 to clean the filter plate 5.
Referring to fig. 2 and 3, the water delivery assembly 72 includes a water inlet pipe 721 and a water pump 722, the water pump 722 is fixedly disposed in the roadbed 2, one end of the water inlet pipe 721 is disposed at a water inlet of the water pump 722, the other end of the water inlet pipe 721 is disposed at the bottom of the drainage ditch 3 for pumping water in the drainage ditch 3, the water pump 722 is turned on, and the water inlet pipe 721 pumps the water in the drainage ditch 3 and delivers the pumped water into the spray assembly 71.
Referring to fig. 2 and 3, the shower assembly 71 includes a shower pipe 711 and a high pressure nozzle 712 for cleaning the filter plate 5, the shower pipe 711 is fixedly installed at an outlet of a water pump 722, and the water pump 722 pumps water and then delivers the water into the shower pipe 711. The high pressure nozzle 712 is fixedly disposed on the shower pipe 711, the high pressure nozzle 712 is communicated with the shower pipe 711, and water in the shower pipe 711 is sprayed out through the high pressure nozzle 712 to clean the filter plate 5. The drainage channel 31 has been seted up on 3 in escape canal, carries out effectual discharge through a large amount of water that the drainage channel 31 is gathered in 3 with the escape canal, avoids gathering a large amount of water in 3 in the escape canal, causes the unable normal drainage in escape canal, makes the road produce ponding.
The implementation principle of the embodiment is as follows: during ponding on the town road, water can enter into escape canal 3 from the wash port on the apron 4, filter during through filter 5, in the filtering process, when silt on the filter 5 is more, start drive arrangement 621, it rotates to drive rotation screw rod 622, it is straight reciprocating motion to drive scraper blade 61 on filter 5, carry out silt with the silt on the filter 5 and carry out effectual clearance, and promote in arranging silt passageway 11, carry in conveying passageway 21 with silt through desilting device 8, and the landing is collected in collection silt case 9. When the filter 5 needs to be cleaned, the spraying device 7 cleans the filter 5, and the filter holes of the filter 5 are prevented from being blocked by sludge.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a town road drainage desilting system, includes driving roadbed (1) and driving roadbed (2), escape canal (3) have been seted up on driving roadbed (1), be provided with apron (4) on escape canal (3), a serial communication port, be provided with filter (5) in escape canal (3), be provided with on filter (5) and be used for carrying out cleaning device (6) of clearing up to the silt on filter (5), cleaning device (6) are including being used for carrying out scraper blade (61) of clearing up and being used for driving drive assembly (62) of scraper blade (61) motion to filter (5), drive assembly (62) set up in driving roadbed (1), scraper blade (61) set up on drive assembly (62), and scraper blade (61) butt in the upper surface of filter (5).
2. A municipal road drainage and dredging system according to claim 1, wherein the driving assembly (62) comprises a driving device (621) and a rotating screw (622), the driving device (621) is fixedly arranged in the roadbed (1), the rotating screw (622) is fixedly arranged on the output shaft of the driving device (621), the scraping plate (61) is sleeved on the rotating screw (622), the scraping plate (61) is in threaded fit with the rotating screw (622), two ends of the scraping plate (61) in the horizontal direction abut against the roadbed (1) and the roadbed (2), and the lower surface of the scraping plate (61) abuts against the upper surface of the filter plate (5).
3. A municipal road drainage and dredging system according to claim 2, wherein a spraying device (7) for cleaning the filter plate (5) is fixedly arranged in the roadbed (2), and the spraying device (7) is arranged below the filter plate (5).
4. A municipal road drainage and dredging system according to claim 3, wherein the spraying device (7) comprises a spraying assembly (71) for cleaning the filter plate (5) and a water delivery assembly (72) for delivering water into the spraying assembly (71), the water delivery assembly (72) is fixedly arranged in the roadbed (2), and the spraying assembly (71) is arranged on the water delivery assembly (72).
5. A municipal road drainage and dredging system according to claim 4, wherein the water delivery assembly (72) comprises a water inlet pipe (721) and a water pump (722), the water pump (722) is fixedly arranged in the roadbed (2), one end of the water inlet pipe (721) is arranged at the water inlet of the water pump (722), and the other end of the water inlet pipe (721) is arranged at the bottom of the drainage ditch (3).
6. A municipal road drainage and dredging system according to claim 5, wherein the spray assembly (71) comprises a spray pipe (711) and a high pressure nozzle (712) for cleaning the filter plate (5), the spray pipe (711) is fixedly arranged at the water outlet of the water pump (722), the high pressure nozzle (712) is fixedly arranged on the spray pipe (711), and the high pressure nozzle (712) is communicated with the spray pipe (711).
7. The municipal road drainage dredging system of claim 1, wherein a dredging channel (11) for discharging sludge on the filter plate (5) is arranged in the traveling roadbed (1), the dredging channel (11) is inclined, one end of the dredging channel (11) far away from the filter plate (5) is provided with a dredging device (8), the dredging channel (12) is arranged in the traveling roadbed (1), the dredging device (8) is arranged in the dredging channel (12), the dredging device (8) comprises a driving motor (81) and an auger (82) for discharging sludge, the driving motor (81) is fixedly arranged in the traveling roadbed (1), and the auger (82) is fixedly arranged on an output shaft of the driving motor (81).
8. The municipal road drainage and dredging system of claim 7, wherein a conveying channel (21) for discharging sludge on the auger (82) is arranged on the pedestrian foundation (2), the conveying channel (21) is communicated with the dredging channel (12), the conveying channel (21) is obliquely arranged, a sludge collection box (9) is arranged in the pedestrian foundation (2), the sludge collection box (9) is in sliding fit with the pedestrian foundation (2), the sludge collection box (9) is communicated with the conveying channel (21), a protection plate (22) is arranged on the upper cover of the pedestrian foundation (2), and the protection plate (22) is arranged right above the sludge collection box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020821411.8U CN212478015U (en) | 2020-05-16 | 2020-05-16 | Municipal administration road drainage desilting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020821411.8U CN212478015U (en) | 2020-05-16 | 2020-05-16 | Municipal administration road drainage desilting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212478015U true CN212478015U (en) | 2021-02-05 |
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ID=74460976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020821411.8U Expired - Fee Related CN212478015U (en) | 2020-05-16 | 2020-05-16 | Municipal administration road drainage desilting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212478015U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123427A (en) * | 2021-03-27 | 2021-07-16 | 中冶华南建设工程有限公司 | Municipal drainage system for sponge city |
| CN113210088A (en) * | 2021-05-14 | 2021-08-06 | 上海澄泓机器人有限公司 | Waste crushing device for sewer pipe |
| CN113338429A (en) * | 2021-07-15 | 2021-09-03 | 广东万奥建设工程有限公司 | Municipal administration is environmental protection desilting device for hydraulic engineering |
| CN113431136A (en) * | 2021-05-26 | 2021-09-24 | 广东天濠建设工程有限公司 | Municipal building engineering water saving system convenient to clearance |
| CN115287957A (en) * | 2022-09-01 | 2022-11-04 | 余姚市交通规划设计研究院 | Rigid-flexible transition section roadbed structure |
| CN116163173A (en) * | 2023-03-16 | 2023-05-26 | 河南省第一公路工程有限公司 | Water accumulation preventing reinforced roadbed pavement structure and paving method |
-
2020
- 2020-05-16 CN CN202020821411.8U patent/CN212478015U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123427A (en) * | 2021-03-27 | 2021-07-16 | 中冶华南建设工程有限公司 | Municipal drainage system for sponge city |
| CN113210088A (en) * | 2021-05-14 | 2021-08-06 | 上海澄泓机器人有限公司 | Waste crushing device for sewer pipe |
| CN113431136A (en) * | 2021-05-26 | 2021-09-24 | 广东天濠建设工程有限公司 | Municipal building engineering water saving system convenient to clearance |
| CN113338429A (en) * | 2021-07-15 | 2021-09-03 | 广东万奥建设工程有限公司 | Municipal administration is environmental protection desilting device for hydraulic engineering |
| CN115287957A (en) * | 2022-09-01 | 2022-11-04 | 余姚市交通规划设计研究院 | Rigid-flexible transition section roadbed structure |
| CN115287957B (en) * | 2022-09-01 | 2024-05-17 | 余姚市交通规划设计研究院 | Rigid-flexible transition section roadbed structure |
| CN116163173A (en) * | 2023-03-16 | 2023-05-26 | 河南省第一公路工程有限公司 | Water accumulation preventing reinforced roadbed pavement structure and paving method |
| CN116163173B (en) * | 2023-03-16 | 2024-08-16 | 河南省第一公路工程有限公司 | Water accumulation preventing reinforced roadbed pavement structure and paving method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |