CN109440907B - Anti-blocking sewer cover plate - Google Patents
Anti-blocking sewer cover plate Download PDFInfo
- Publication number
- CN109440907B CN109440907B CN201811301044.2A CN201811301044A CN109440907B CN 109440907 B CN109440907 B CN 109440907B CN 201811301044 A CN201811301044 A CN 201811301044A CN 109440907 B CN109440907 B CN 109440907B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- strip
- dirty
- dirt blocking
- water receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000001737 promoting effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
- E03F2005/068—Gully gratings with means for enhancing water flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention relates to an anti-blocking sewer cover plate, which comprises a cover plate body horizontally arranged, wherein a plurality of strip-shaped drain holes are formed in the cover plate body, and a rotating shaft is arranged at the bottom end of the cover plate body; the rotating shaft is rotationally connected with a plurality of dirt blocking rods, one ends of the dirt blocking rods are fixedly connected through connecting rods, and one ends of the dirt blocking rods, which are far away from the connecting rods, are turned upwards to extend out of the strip-shaped drain holes when the rotating shaft rotates; the connecting rod is provided with a hanging chain, a water receiving box with the top end capable of being filled with rainwater is hung on the hanging chain, and a water outlet is arranged at the bottom end of the water receiving box. According to the invention, the gravity of rainwater is utilized, when the rainwater falls into the water receiving box, the gravity of the water receiving box increases and descends to drive one end of the dirt blocking rod far away from the connecting rod to lift upwards, so that leaves, plastic bags, paper scraps, mud stones and the like on the strip-shaped drain holes are jacked up, the blockage to the strip-shaped drain holes is avoided, the cost is low, and the effect is good.
Description
Technical Field
The invention relates to the technical field of urban drainage systems, in particular to an anti-blocking sewer cover plate.
Background
In summer, due to heavy rainfall and other reasons, waterlogging of a plurality of urban roads and squares occurs, and great economic loss is brought to people, wherein one reason is that the sewage outlet of the urban sewage drainage pipe network system is blocked by leaves, plastic bags, paper scraps, mud stones and the like which are flushed out by large water, so that the drainage system is disabled, and the roads, squares and the like are submerged.
Disclosure of Invention
The invention aims to solve the technical problem of providing the anti-blocking sewer cover plate, which can automatically block leaves, plastic bags, paper scraps, mud stones and the like in rainy days, prevent the leaves, plastic bags, paper scraps, mud stones and the like from covering the strip-shaped drain holes of the cover plate body to block the strip-shaped drain holes, and solve the problem of urban waterlogging caused by the blockage of a drain outlet.
The technical scheme for solving the technical problems is as follows: the anti-blocking sewer cover plate comprises a cover plate body which is horizontally arranged, wherein a plurality of strip-shaped drain holes which are arranged in parallel and penetrate through the upper end face and the lower end face of the cover plate body are formed in the cover plate body, a rotating shaft which is perpendicular to the length direction of the strip-shaped drain holes is arranged at the bottom end of the cover plate body, and two ends of the rotating shaft are fixedly connected with the bottom end of the cover plate body; the device comprises a rotating shaft, a plurality of dirt blocking rods, a plurality of connecting rods, a plurality of dirt blocking rods, a plurality of guide rods and a plurality of guide rods, wherein the dirt blocking rods are arranged in parallel with the length direction of the strip-shaped drain holes in a rotating mode, the dirt blocking rods are arranged under the strip-shaped drain holes in a one-to-one correspondence mode, one ends of the dirt blocking rods are fixedly connected through the connecting rods, and one ends, far away from the connecting rods, of the dirt blocking rods upwards overturn when rotating on the rotating shaft and extend out of the strip-shaped drain holes; the connecting rod is provided with a hanging chain, a water receiving box with the top end capable of being filled with rainwater is hung on the hanging chain, and a water outlet is arranged at the bottom end of the water receiving box.
The beneficial effects of the invention are as follows: according to the invention, the gravity of rainwater is utilized, when the rainwater falls into the water receiving box, the gravity of the water receiving box is increased and falls downwards, one end of the dirt blocking rod, which is far away from the connecting rod, is driven to be lifted upwards, leaves, plastic bags, paper scraps, mud stones and the like on the strip-shaped drain holes are jacked up, the blockage of the strip-shaped drain holes is avoided, the blockage problem is solved, the urban waterlogging caused by the blockage of the water outlet is solved, the cost is low, and the effect is good.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the bottom that keeps off dirty pole is kept away from the one end of connecting rod all is equipped with keeps off dirty pair pole, keep off dirty pair pole one end with the bottom fixed connection who keeps off dirty pole, keep off dirty pole is kept away from the one end of connecting rod upwards overturns and stretches out when the bar wash port, keep off dirty pair pole is kept away from keep off dirty one end of pole and establish in the one end of bar wash port.
The beneficial effects of adopting the further scheme are as follows: through setting up the dirty pair pole that keeps off, keep off dirty pole and keep away from the one end of connecting rod after promoting, avoid leaf, plastic bag, wastepaper etc. to block up the bar wash port of this end below, improve and prevent blockking up the effect.
Further, a plurality of keep off dirty pole lie in two that keep off dirty pole of both sides be equipped with the side and keep off dirty pole on the bottom of dirty pole, the side keep off dirty pole and establish the pivot with keep off between the dirty pair pole, the one end of dirty pole of side keep off with keep off the bottom fixed connection of dirty pole.
The beneficial effects of adopting the further scheme are as follows: the side dirt blocking rod can be arranged to block two sides of the side dirt blocking rod after being lifted at one end, far away from the connecting rod, of the dirt blocking rod, and the situation that leaves, plastic bags, paper scraps and the like enter the upper portion of the strip-shaped drain hole from two sides to block the strip-shaped drain hole is avoided.
Further, the side dirt blocking rod is perpendicular to the dirt blocking rod, or one end of the side dirt blocking rod, which is far away from the dirt blocking rod, is obliquely arranged towards the direction of the dirt blocking auxiliary rod.
The beneficial effects of adopting the further scheme are as follows: the side dirt blocking rod is vertically arranged or obliquely arranged in the direction of deviating from the dirt blocking auxiliary rod, so that the blocking effect is ensured.
Further, a regulating valve for regulating the water draining speed is arranged at the water draining port.
The beneficial effects of adopting the further scheme are as follows: the speed of water receiving box drainage can be adjusted as required to the setting of governing valve, realizes keeping off dirty pole and can be promoted under different rainfall circumstances, improves the suitability.
Further, the top of water receiving box is equipped with the water receiving opening, water receiving opening part is equipped with the filter screen, the fixed couple that is equipped with in middle part of filter screen, the couple is hung and is established on the link chain.
The beneficial effects of adopting the further scheme are as follows: through setting up the filter screen, reduce the spot that enters into in the water receiving box.
Further, an alarm strip for displaying the extension amount of the dirt blocking rod extending upwards out of the strip-shaped drain hole is arranged on the upper end face of the dirt blocking rod.
The beneficial effects of adopting the further scheme are as follows: the setting of warning strip can be directly perceivedly judge out the rainwater volume after keeping off dirty pole by promoting to can realize the warning to the road man after keeping off dirty pole by promoting.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the connection of the dirt blocking lever, the connecting rod, the dirt blocking auxiliary lever and the side dirt blocking lever in the present invention;
FIG. 4 is a top view of the water receiving box of the present invention;
FIG. 5 is a schematic view of the present invention illustrating a state of the dirt blocking lever after rotation;
in the drawings, the list of components represented by the various numbers is as follows:
1. the cover plate comprises a cover plate body, 2, a strip-shaped drain hole, 3, a rotating shaft, 4, a dirt blocking rod, 5, a connecting rod, 6, a hanging chain, 7, a water receiving box, 8, a drain outlet, 9, a dirt blocking auxiliary rod, 10, a side dirt blocking rod, 11, a regulating valve, 12, a water receiving opening, 13, a filter screen, 14, a hook, 15 and a warning strip.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 and 2, an embodiment of the present invention includes a cover body 1 that is horizontally disposed, in this embodiment, a cross section of the cover body 1 is rectangular, a plurality of strip-shaped drain holes 2 that are disposed in parallel and penetrate through upper and lower end surfaces of the cover body 1 are disposed on the cover body 1, a length direction of the strip-shaped drain holes 2 is parallel to a width direction of the cover body 1, a rotating shaft 3 perpendicular to the length direction of the strip-shaped drain holes 2 is disposed on a bottom end of the cover body 1, two ends of the rotating shaft 3 are fixed on the bottom end of the cover body 1 through fixing seats, and the rotating shaft 3 is close to one end of the strip-shaped drain holes 2; the rotating shaft 3 is rotatably connected with a plurality of dirt blocking rods 4 which are arranged in parallel and are parallel to the length direction of the strip-shaped drain holes 2, the dirt blocking rods 4 are arranged under the strip-shaped drain holes 2 in a one-to-one correspondence manner, one ends of the dirt blocking rods 4, which are closer to the rotating shaft 3, are fixedly connected through connecting rods 5, one ends of the dirt blocking rods 4, which are far away from the connecting rods 5, are upwards turned and extend out of the strip-shaped drain holes 2 when the rotating shaft 3 rotates, and leaves, plastic bags and the like on the upper ends of the strip-shaped drain holes 2 can be jacked up through the lifting of one ends of the dirt blocking rods 4, which are far away from the connecting rods 5, so that the strip-shaped drain holes 2 are prevented from being blocked; the connecting rod 5 is provided with a hanging chain 6, the hanging chain 6 is arranged in the middle of the connecting rod 5, the top end of the hanging chain 6 is rotationally connected with the connecting rod 5, the hanging chain 6 is provided with a water receiving box 7, the top end of which can be used for rainwater injection, and the bottom end of the water receiving box 7 is provided with a water outlet 8.
As shown in fig. 3, a preferred embodiment of the present invention includes: the bottom that keeps off dirty pole 4 kept away from the one end of connecting rod 5 all is equipped with keeps off dirty auxiliary rod 9, the one end that keeps off dirty auxiliary rod 9 with the bottom fixed connection who keeps off dirty pole 4, keep off dirty pole 4 is kept away from the one end of connecting rod 5 upwards overturns and stretches out when bar wash port 2, keep off dirty auxiliary rod 9 is kept away from the one end that keeps off dirty pole 4 is established in the one end of bar wash port 2. When the dirt blocking rod 4 is lifted away from one end of the connecting rod 5, sundries such as transfusion and plastic bags can possibly fall into the strip-shaped drain hole 2 between one end of the dirt blocking rod 4 after lifting and the cover plate body 1, and by arranging the dirt blocking auxiliary rod 9, the strip-shaped drain hole 2 below the end is prevented from being blocked by leaves, plastic bags, paper scraps and the like, so that the anti-blocking effect is improved; preferably, the end that keeps off dirty accessory bar 9 is close to the one end that keeps off dirty pole 4 and keep away from connecting rod 5 sets up, and after the one end that keeps off dirty pole 4 and keep away from connecting rod 5 promotes certain height, the one end that keeps off dirty accessory bar 9 and keep away from dirty pole 4 supports to press in the tip bottom of bar wash port 2, realizes restricting the promotion height realization to keep off dirty pole 4.
As shown in fig. 3, the preferred embodiment is: the bottom of two dirt blocking rods 4 positioned on two sides of the dirt blocking rods 4 is provided with a side dirt blocking rod 10, the side dirt blocking rod 10 is arranged between the rotating shaft 3 and the dirt blocking auxiliary rod 9, and one end of the side dirt blocking rod 10 is fixedly connected with the bottom of the dirt blocking rod 4. The side dirt blocking rod 10 can block the two sides of the parallel dirt blocking rods 4 after the dirt blocking rods 4 are lifted away from one end of the connecting rod 5, so that the situation that leaves, plastic bags, paper scraps and the like enter the upper parts of the strip-shaped water draining holes 2 from the two sides is avoided. The side dirt blocking rod 10 is perpendicular to the dirt blocking rod 4, or one end of the side dirt blocking rod 10 away from the dirt blocking rod 4 is obliquely arranged towards the dirt blocking auxiliary rod 9. The side dirt blocking rod 10 is vertically arranged or obliquely arranged in the direction of deviating from the dirt blocking auxiliary rod 9, so that the blocking effect is ensured.
Further preferably, a regulating valve 11 for regulating the drainage speed is provided at the drainage port 8. The speed of draining water of the water receiving box 7 can be adjusted according to the needs through the arrangement of the adjusting valve 11, so that the dirt blocking rod 4 can be lifted under different rainfall conditions, and applicability is improved. As shown in fig. 4, the top end of the water receiving box 7 is provided with a water receiving opening 12, a filter screen 13 is arranged at the water receiving opening 12, a hook 14 is fixedly arranged in the middle of the filter screen 13, the hook 14 is hung on the hanging chain 6, stains entering the water receiving box 7 are reduced by arranging the filter screen 13, the weight of the water receiving box 7 is the weight of the water receiving box 7 plus the amount of rainwater entering from the water receiving opening 12 minus the amount of water drained from the water outlet 8, and when the water receiving amount is larger than the water draining amount, the weight of the water receiving box 7 is increased, and the water draining speed is regulated by regulating the regulating valve 11.
Further preferred embodiments are: the upper end surface of the dirt blocking rod 4 is provided with an alarm strip 15 for displaying the extension amount of the dirt blocking rod 4 extending upwards out of the strip-shaped drain hole 2. The arrangement of the warning strip 15 can intuitively judge the rainwater amount after the dirt blocking rod 4 is lifted, and can warn the road person after the dirt blocking rod 4 is lifted. In the embodiment of the present invention, the warning strip 15 may be a luminous paste or may be made by using different colors, for example, green, yellow and red paints are sequentially painted from the end close to the rotating shaft 3 to the end far from the rotating shaft 3, so as to realize the warning function.
Working principle: when no rainwater or less rainwater exists, the longer section of the dirt blocking rod 4 sags downwards due to dead weight, and is pressed against the bottom end of the cover plate body 1 by the connecting rod 5, and is parallel to the strip-shaped drain hole 2; when heavy storm is met, rainwater flows into the water receiving box 7 (the water inflow is larger than the water drainage of the water outlet 8), when the water containing weight of the water receiving box 7 exceeds the weight of one end of the dirt blocking rod 4 far away from the connecting rod 5, the dirt blocking rod 4 is automatically pulled up and upright, and plastic bags, paper, leaves and the like which are flushed by the water flow can be effectively blocked through the arrangement of the dirt blocking auxiliary rod 9 and the side dirt blocking rods 10; when rainfall is reduced or stopped, water in the water receiving box 7 runs off through the bottom water outlet 8, and the weight of one end of the dirt blocking rod 4 far away from the connecting rod 5 exceeds the weight of one end of the water receiving box 7, the connecting rod 5 and the dirt discharging rod near the connecting rod 5, so that the dirt discharging rod automatically restores to be parallel to the water outlet 8 without manual treatment.
The beneficial effects of the invention are as follows: according to the invention, the gravity of rainwater is utilized, when the rainwater falls into the water receiving box 7, the gravity of the water receiving box 7 increases and descends to drive one end of the dirt blocking rod 4 far away from the connecting rod 5 to lift upwards, so that leaves, plastic bags, paper scraps, mud stones and the like on the strip-shaped drain holes 2 are jacked up, the blockage of the strip-shaped drain holes 2 is avoided, the blockage problem is solved, the urban waterlogging caused by the blockage of the drain outlet 8 is solved, the cost is low, and the effect is good.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The anti-blocking sewer cover plate is characterized by comprising a cover plate body (1) which is horizontally arranged, wherein a plurality of strip-shaped drain holes (2) which are arranged in parallel and penetrate through the upper end face and the lower end face of the cover plate body (1) are formed in the cover plate body (1), a rotating shaft (3) which is perpendicular to the length direction of the strip-shaped drain holes (2) is arranged at the bottom end of the cover plate body (1), and two ends of the rotating shaft (3) are fixedly connected with the bottom end of the cover plate body (1); a plurality of dirt blocking rods (4) which are arranged in parallel and are parallel to the length direction of the strip-shaped drain holes (2) are rotationally connected to the rotating shaft (3), the dirt blocking rods (4) are arranged under the strip-shaped drain holes (2) in one-to-one correspondence, one ends of the dirt blocking rods (4) are fixedly connected through connecting rods (5), and one ends, far away from the connecting rods (5), of the dirt blocking rods (4) are upwards turned and extend out of the strip-shaped drain holes (2) when the rotating shaft (3) rotates; be equipped with on connecting rod (5) and hang chain (6), hang on hanging chain (6) and be equipped with water receiving box (7) that the top can supply the rainwater to pour into, the bottom that water receiving box (7) was equipped with outlet (8), the dirty pole (4) of fender is kept away from the bottom of the one end of connecting rod (5) all is equipped with keeps off dirty accessory bar (9), the one end of keeping off dirty accessory bar (9) with the bottom fixed connection who keeps off dirty pole (4), keep off dirty pole (4) keep away from the one end of connecting rod (5) upwards overturns and stretches out when bar wash port (2), it is in to keep off the one end of dirty accessory bar (9) one end of keeping off dirty pole (4) is established in the one end of bar wash port (2), a plurality of keep off dirty pole (4) are located two in both sides keep off dirty pole (10) of side, it establishes to keep off dirty pole (10) of side to keep off between accessory bar (9), keep off dirty pole (10) and keep off dirty pole (4) side, the one end of being kept off dirty pole (4) is kept off the one end (10) and is kept off the one end of setting up and is perpendicular to the one end (4).
2. An anti-clogging sewer cover plate according to claim 1, characterized in that the drain opening (8) is provided with a regulating valve (11) for regulating the drain speed.
3. The anti-blocking sewer cover plate according to claim 1, wherein a water receiving opening (12) is formed in the top end of the water receiving box (7), a filter screen (13) is arranged at the water receiving opening (12), a hook (14) is fixedly arranged in the middle of the filter screen (13), and the hook (14) is hung on the hanging chain (6).
4. An anti-clogging sewer cover plate according to claim 1, characterized in that an alarm strip (15) for displaying the projecting amount of the dirt blocking rod (4) projecting upward from the strip-shaped drain hole (2) is provided on the upper end surface of the dirt blocking rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301044.2A CN109440907B (en) | 2018-11-02 | 2018-11-02 | Anti-blocking sewer cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301044.2A CN109440907B (en) | 2018-11-02 | 2018-11-02 | Anti-blocking sewer cover plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109440907A CN109440907A (en) | 2019-03-08 |
| CN109440907B true CN109440907B (en) | 2023-12-05 |
Family
ID=65549930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811301044.2A Active CN109440907B (en) | 2018-11-02 | 2018-11-02 | Anti-blocking sewer cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109440907B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700389A (en) * | 2019-10-20 | 2020-01-17 | 荆门银鱼机电科技有限公司 | Sewer well lid |
| CN112012309B (en) * | 2020-08-22 | 2021-09-10 | 苏州邦瑞生态环境建设工程有限公司 | Gardens drainage structures |
| CN114351838B (en) * | 2022-01-13 | 2023-11-17 | 南京林业大学 | Sewer cover plate capable of relieving blockage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203701262U (en) * | 2013-12-25 | 2014-07-09 | 茂名职业技术学院 | Anti-blocking dry well cover |
| CN205604416U (en) * | 2016-04-27 | 2016-09-28 | 王佳音 | Water blockoff double -edged fine -toothed comb is prevented to hydrodynamic force |
| KR20170140833A (en) * | 2016-06-13 | 2017-12-22 | 주식회사 그린리브 | Rainwater Treatment Unit for Early Roads Drainage |
| CN108331133A (en) * | 2017-12-29 | 2018-07-27 | 曹先锋 | A kind of road anti-clogging drainage arrangement and its application method |
| CN209260875U (en) * | 2018-11-02 | 2019-08-16 | 郎子乂 | A kind of anti-clogging sewer cover plate |
-
2018
- 2018-11-02 CN CN201811301044.2A patent/CN109440907B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203701262U (en) * | 2013-12-25 | 2014-07-09 | 茂名职业技术学院 | Anti-blocking dry well cover |
| CN205604416U (en) * | 2016-04-27 | 2016-09-28 | 王佳音 | Water blockoff double -edged fine -toothed comb is prevented to hydrodynamic force |
| KR20170140833A (en) * | 2016-06-13 | 2017-12-22 | 주식회사 그린리브 | Rainwater Treatment Unit for Early Roads Drainage |
| CN108331133A (en) * | 2017-12-29 | 2018-07-27 | 曹先锋 | A kind of road anti-clogging drainage arrangement and its application method |
| CN209260875U (en) * | 2018-11-02 | 2019-08-16 | 郎子乂 | A kind of anti-clogging sewer cover plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109440907A (en) | 2019-03-08 |
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