CN111576600B - Drainage filtering device and method for nodular cast iron well lid - Google Patents
Drainage filtering device and method for nodular cast iron well lid Download PDFInfo
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- CN111576600B CN111576600B CN202010455142.2A CN202010455142A CN111576600B CN 111576600 B CN111576600 B CN 111576600B CN 202010455142 A CN202010455142 A CN 202010455142A CN 111576600 B CN111576600 B CN 111576600B
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- 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
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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- 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
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Abstract
The invention discloses a drain filtering device and method for a nodular cast iron well lid, the whole device has reasonable structural design and high mechanical strength, and can face different use environments, wherein when small precipitation occurs, rainwater and some small impurities can flow away along the gap of the two water leakage holes, some large-volume impurities can be left on the baffle plate, when large precipitation occurs, more impurities are accumulated on the baffle plate, meanwhile, the impact baffle of the rainwater can be forced to move downwards, the gap between the two water leakage holes can be enlarged, so that more rainwater can flow in unit time, meanwhile, sundries with larger volume can fall down, so that the well cover is prevented from being blocked, and meanwhile, rainwater can impact the fan blades in a large scale, the fan blades rotate quickly, and the disturbing frame can drive the hairbrush to disturb the baffle plate back and forth, so that sundries with larger volume are cleaned, and blockage is avoided; after the rainwater is finished, the baffle automatically returns to the initial state under the elastic force action of the return spring.
Description
Technical Field
The invention relates to a nodular cast iron well lid, in particular to a draining and filtering device and method for the nodular cast iron well lid.
Background
The ductile iron is a high-strength cast iron material developed in the 20 th century and the fifties, the comprehensive performance of the ductile iron is close to that of steel, and the ductile iron is successfully used for casting parts which are complex in stress and high in requirements on strength, toughness and wear resistance based on the excellent performance of the ductile iron. Nodular cast iron has rapidly evolved to a very widely used cast iron material second only to gray cast iron. The term "steel is replaced by iron" is mainly used for nodular cast iron.
The nodular cast iron is spheroidized and inoculated to obtain spheroidal graphite, so that the mechanical properties of the cast iron are effectively improved, and particularly, the plasticity and toughness are improved, so that the strength of the cast iron is higher than that of carbon steel. The nodular cast iron well lid is often seen in our lives and is a good drainage tool. The nodular cast iron well lid has the advantages of light weight, high strength, good toughness, corrosion resistance, fatigue resistance and proper cost, and has stronger practicability compared with the gray cast iron well lid with the same specification and size. However, when the existing nodular cast iron well lid meets large-scale precipitation, the existing nodular cast iron well lid is easy to block, and different use requirements cannot be met.
Disclosure of Invention
The invention aims to provide a drainage filtering device and a drainage filtering method for a nodular cast iron well lid, wherein the drainage filtering device has the advantages of high strength and strong adaptability, and the drainage filtering device and the drainage filtering method solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a nodular cast iron well lid drainage filter equipment, includes well lid seat, apron and filtering component, filtering component installs the inboard at the well lid seat, the well lid seat includes shirt rim, main part and strengthening rib piece, and the outer edge of main part is fixed to the shirt rim, and the strengthening rib piece is installed with the junction of main part to the shirt rim, and the apron is installed to the top of main part, and the inner wall and the filtering component contact of main part.
Preferably, the filtering component comprises a baffle, a disturbing frame, a fan blade, a connecting rod, a partition plate and a reset component, the baffle is provided with a first water leakage hole, the disturbing frame is arranged above the baffle, the center of the disturbing frame is connected with the top end of the connecting rod, the connecting rod is movably connected with the baffle through a bearing, the fan blade is arranged at the bottom end of the connecting rod and is positioned under the baffle, the partition plate is also arranged under the baffle, the partition plate and the baffle are both connected with the reset component, the reset component is positioned on the side wall of the main body and comprises a transition ring, a reset spring, a ball, a jacket, a transverse plate and a guide cylinder, the transition ring is fixedly connected with the edge of the baffle, the ball is arranged on the bottom surface of the transition ring and is also contacted with the upper surface of the transverse plate, the transverse plate is fixed with the edge of the partition plate, the reset spring is arranged under the transverse plate, the inner wall of the jacket is provided with a spiral groove, and the inner wall of the spiral groove is movably connected with the guide cylinder.
Preferably, the guide cylinder is mounted on the outer wall of the transition ring.
Preferably, a seal plate ring is arranged on the transition ring, and the outer wall of the seal plate ring is in contact with the jacket.
Preferably, the isolation plate is provided with a second water leakage hole, the second water leakage hole and the first water leakage hole are round holes with the same size, and the second water leakage hole is located below the first water leakage hole in an inclined mode.
Preferably, the bottom surface of the disturbing frame is provided with uniformly distributed brushes, and the bottom ends of the brushes are in contact with the baffle.
Preferably, the bottom wall of the transition ring and the surface of the transverse plate are both provided with circular groove rings matched with the balls
The invention also aims to solve the technical problems that: the drainage filtering method of the ductile cast iron manhole cover drainage filtering device comprises the following steps:
s1: when smaller precipitation occurs, rainwater enters the well cover together with sundries, and the second water leakage hole is positioned obliquely below the first water leakage hole, so that the rainwater and some small sundries can flow away along the gap between the second water leakage hole and the first water leakage hole, and some large-volume sundries can be left on the baffle;
s2: when larger precipitation occurs, a large amount of rainwater enters the well cover together with a large amount of sundries, the rainwater and some small sundries can flow away along the gap between the second water leakage hole and the first water leakage hole, meanwhile, some sundries with larger volume can be left on the baffle plate, and as more sundries are accumulated on the baffle plate, the impact baffle plate of the rainwater can be forced to move downwards, and meanwhile, the impact baffle plate can move obliquely, so that the impact baffle plate and the isolation plate can change angles;
s3: the gap between the second water leakage hole and the first water leakage hole is enlarged, so that more rainwater flows in unit time, and meanwhile, sundries with larger volume also fall off, so that the well cover is prevented from being blocked;
s4: after the rainwater is finished, the baffle automatically returns to the initial state under the elastic force action of the return spring.
Compared with the prior art, the invention has the beneficial effects that:
the ductile cast iron well lid drainage filtering device and the method have reasonable structural design and high mechanical strength, and can simultaneously face different use environments, wherein when smaller precipitation occurs, rainwater and small sundries can flow away along the gap of the two water leakage holes, and large-volume sundries can be left on the baffle plate, when larger precipitation occurs, rainwater and small sundries can flow away along the gap of the two water leakage holes, because more sundries are accumulated on the baffle plate, the impact baffle plate of the rainwater can be forced to move downwards, the guide cylinder can move for a certain distance on the inner side of the spiral groove, and the gap of the two water leakage holes can be enlarged, so that more rainwater flows through in unit time, and large-volume sundries can fall down, thereby avoiding the blockage of the well lid, meanwhile, the rainwater can impact the fan blades on a large scale, and the fan blades can rotate rapidly, the disturbing frame can drive the brush to disturb the baffle plate back and forth, so that sundries with larger volume are cleaned, and blockage is avoided; after the rainwater is finished, the baffle automatically returns to the initial state under the elastic force action of the return spring.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic overall view of the present invention;
FIG. 3 is a schematic view of the baffle structure of the present invention;
FIG. 4 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 5 is an enlarged cross-sectional view of the baffle structure of the present invention;
FIG. 6 is an enlarged view taken at A-A of FIG. 4 in accordance with the present invention;
FIG. 7 is a schematic view of a second water leakage hole according to the present invention;
fig. 8 is a schematic view of the position of a first water leakage hole according to the present invention.
In the figure: 1. a well cover seat; 11. a skirt edge; 12. a main body; 13. a reinforcing rib block; 2. a cover plate; 3. a filter assembly; 31. a baffle plate; 311. a first water leakage hole; 32. a disturbing frame; 33. a fan blade; 34. a connecting rod; 35. a separator plate; 351. a second water leakage hole; 36. a reset assembly; 361. a transition ring; 362. a return spring; 363. a ball bearing; 364. a jacket; 3641. a helical groove; 365. a transverse plate; 366. a guide cylinder; 37. a brush; 38. and a seal ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-6, a ductile iron manhole cover drainage filter device, the whole device is installed on a sewer pipe, including a manhole cover base 1, a cover plate 2 and a filter component 3, the manhole cover base 1 and the cover plate 2 are both made by cast iron process, the manhole cover base 1 has high overall strength and can bear the rolling of an automobile, the whole device is not deformed for a long time, the filter component 3 plays a role of filtering impurities to avoid the blockage of a sewer pipe, the filter component 3 is installed on the inner side of the manhole cover base 1, the manhole cover base 1 includes a skirt edge 11, a main body 12 and a reinforcing rib block 13, the reinforcing rib block 13 increases the strength of the manhole cover base 1, the skirt edge 11 is fixed on the outer edge of the main body 12, the reinforcing rib block 13 is installed at the joint of the skirt edge 11 and the main body 12, the cover plate 2 is installed above the main body 12, the inner wall of the main body 12 is.
The filtering component 3 comprises a baffle 31, a disturbing frame 32, a fan blade 33, a connecting rod 34, a separating plate 35 and a reset component 36, wherein a first water leakage hole 311 is formed in the baffle 31, the disturbing frame 32 is arranged above the baffle 31, brushes 37 which are uniformly distributed are arranged on the bottom surface of the disturbing frame 32, the bottom end of each brush 37 is in contact with the baffle 31, the disturbing frame 32 can drive the brushes 37 to disturb the baffle 31 back and forth in the rotating process, the center of the disturbing frame 32 is connected with the top end of the connecting rod 34, the connecting rod 34 is movably connected with the baffle 31 through a bearing, the fan blade 33 is arranged at the bottom end of the connecting rod 34, the fan blade 33 is positioned under the baffle 31, the separating plate 35 is further arranged below the baffle 31, a second water leakage hole 351 is formed in the separating plate 35, the second water leakage hole 351 and the first water leakage hole 311 are round holes with the same size, the second water leakage hole 351 is positioned at the oblique position of the first water leakage hole 311, and a certain gap is formed between the second, the isolating plate 35 and the baffle plate 31 are both connected with the resetting component 36, the resetting component 36 is located on the side wall of the main body 12, the resetting component 36 comprises a transition ring 361, a resetting spring 362, balls 363, a jacket 364, a transverse plate 365 and a guide cylinder 366, the transition ring 361 is fixedly connected with the edge of the baffle plate 31, the balls 363 are installed on the bottom surface of the transition ring 361, the balls 363 are also in contact with the upper surface of the transverse plate 365, circular groove rings matched with the balls 363 are respectively arranged on the bottom wall of the transition ring 361 and the surface of the transverse plate 365, the transition ring 361 is connected with the transverse plate 365 through the balls 363, so that the transition ring 361 can freely rotate, the transverse plate 365 is fixed with the edge of the isolating plate 35, the resetting spring 362 is arranged below the transverse plate 365, the bottom end of the resetting spring 362 is in contact with the jacket 364, the sealing plate ring 38 is installed on the transition ring 361, the outer wall of the sealing plate ring 38, the jacket 364 is installed on the inner wall of the main body 12, a spiral groove 3641 is opened on the inner wall of the jacket 364, the inner wall of the spiral groove 3641 is movably connected with a guide cylinder 366, the guide cylinder 366 is installed on the outer wall of the transition ring 361, and the guide cylinder 366 can move a certain distance on the inner side of the spiral groove 3641.
Referring to fig. 7, based on the above nodular cast iron manhole cover drainage filtering device, the present embodiment provides a drainage filtering method of the nodular cast iron manhole cover drainage filtering device, which includes the following steps: when less precipitation appears, the rainwater is mingled with debris and gets into in the well lid, because second hole 351 that leaks is located the oblique below in first hole 311 that leaks, so rainwater and some small-size debris will be in the same direction as second hole 351 that leaks and the clearance in first hole 311 that leaks and flow away, some bulky debris will be stayed on baffle 31, and meanwhile, rainwater can small-scale impact fan piece 33, fan piece 33 slowly rotates, at fan piece 33 pivoted in-process, disturb frame 32 and can rotate, disturb frame 32 and can drive brush 37 disturbance baffle 31 that makes a round trip, clear up some small debris like this.
Example two
Referring to fig. 1-6, a ductile iron manhole cover drainage filter device, the whole device is installed on a sewer pipe, including a manhole cover base 1, a cover plate 2 and a filter component 3, the manhole cover base 1 and the cover plate 2 are both made by cast iron process, the manhole cover base 1 has high overall strength and can bear the rolling of an automobile, the whole device is not deformed for a long time, the filter component 3 plays a role of filtering impurities to avoid the blockage of a sewer pipe, the filter component 3 is installed on the inner side of the manhole cover base 1, the manhole cover base 1 includes a skirt edge 11, a main body 12 and a reinforcing rib block 13, the reinforcing rib block 13 increases the strength of the manhole cover base 1, the skirt edge 11 is fixed on the outer edge of the main body 12, the reinforcing rib block 13 is installed at the joint of the skirt edge 11 and the main body 12, the cover plate 2 is installed above the main body 12, the inner wall of the main body 12 is. The filtering component 3 comprises a baffle 31, a disturbing frame 32, a fan 33, a connecting rod 34, a separating plate 35 and a reset component 36, wherein a first water leakage hole 311 is formed in the baffle 31, the disturbing frame 32 is arranged above the baffle 31, the center of the disturbing frame 32 is connected with the top end of the connecting rod 34, the connecting rod 34 is movably connected with the baffle 31 through a bearing, the fan 33 is arranged at the bottom end of the connecting rod 34, the fan 33 is positioned right below the baffle 31, the separating plate 35 is also arranged below the baffle 31, the separating plate 35 and the baffle 31 are both connected with the reset component 36, the reset component 36 is positioned on the side wall of the main body 12, the reset component 36 comprises a transition ring 361, a reset spring 362, balls 363, a jacket 364, a transverse plate 365 and a guide cylinder 366, the transition ring 361 is fixedly connected with the edge of the baffle 31, the balls 363 are arranged on the bottom surface of the transition ring 361, the balls 363 are also contacted with the upper surface of the transverse, a return spring 362 is arranged below the transverse plate 365, the bottom end of the return spring 362 is in contact with a jacket 364, the jacket 364 is mounted on the inner wall of the main body 12, a spiral groove 3641 is formed in the inner wall of the jacket 364, the inner wall of the spiral groove 3641 is movably connected with a guide cylinder 366, and the guide cylinder 366 can move for a certain distance on the inner side of the spiral groove 3641.
Referring to fig. 8, based on the above nodular cast iron manhole cover drainage filtering device, the present embodiment provides a drainage filtering method of the nodular cast iron manhole cover drainage filtering device, which includes the following steps: when large precipitation occurs, a large amount of rainwater is mixed with a large amount of sundries to enter the well lid, rainwater and some small sundries flow away along the gap between the second water leakage hole 351 and the first water leakage hole 311, and some large-size sundries are left on the baffle plate 31, because more sundries are accumulated on the baffle plate 31, the impact baffle plate 31 of rainwater is forced to move downwards, the reset spring 362 is compressed, the guide cylinder 366 can move for a certain distance on the inner side of the spiral groove 3641, and the impact baffle plate 31 moves obliquely, so that the impact baffle plate 31 and the isolating plate 35 change in angle, the gap between the second water leakage hole 351 and the first water leakage hole 311 becomes larger, so that more rainwater flows in unit time, and some large-size sundries fall down, so that the well lid is prevented from being blocked, meanwhile, the rainwater can impact the fan blade 33 in a large scale, and the fan blade 33 rotates rapidly, in the process of rapidly rotating the fan sheet 33, the disturbing frame 32 can rapidly rotate, and the disturbing frame 32 can drive the brush 37 to disturb the baffle 31 back and forth, so that sundries with larger volume can be cleaned, and blockage can be avoided; when the rain water is over, the baffle 31 automatically returns to the initial state under the elastic force of the return spring 362.
According to the drainage filtering device and method for the nodular cast iron well lid, when small precipitation occurs, rainwater is mixed with sundries to enter the well lid, the rainwater and some small sundries flow away along the gap between the second water leakage hole 351 and the first water leakage hole 311, some large-size sundries can be left on the baffle 31, meanwhile, the rainwater can impact the fan blades 33 on a small scale, and the disturbing frame 32 can slowly drive the hairbrush 37 to disturb the baffle 31 back and forth. When large precipitation occurs, a large amount of rainwater is mixed with a large amount of sundries to enter the well lid, rainwater and some small sundries flow away along the gap between the second water leakage hole 351 and the first water leakage hole 311, and some large-size sundries are left on the baffle plate 31, because more sundries are accumulated on the baffle plate 31, the impact baffle plate 31 of rainwater is forced to move downwards, the reset spring 362 is compressed, the guide cylinder 366 can move for a certain distance on the inner side of the spiral groove 3641, and the impact baffle plate 31 moves obliquely, so that the impact baffle plate 31 and the isolating plate 35 change in angle, the gap between the second water leakage hole 351 and the first water leakage hole 311 becomes larger, so that more rainwater flows in unit time, and some large-size sundries fall down, so that the well lid is prevented from being blocked, meanwhile, the rainwater can impact the fan blade 33 in a large scale, and the fan blade 33 rotates rapidly, the disturbing frame 32 can drive the brush 37 to disturb the baffle 31 back and forth, so that sundries with large volume are cleaned, and blockage is avoided; when the rain water is over, the baffle 31 automatically returns to the initial state under the elastic force of the return spring 362.
In summary, the drainage filtering device and method for the nodular cast iron well lid provided by the invention have reasonable structural design and high mechanical strength, and can face different use environments, wherein when smaller precipitation occurs, rainwater and small impurities can flow away along the gap between the two water leakage holes, some large-volume impurities can be left on the baffle 31, when larger precipitation occurs, rainwater and small impurities can flow away along the gap between the two water leakage holes, because more impurities are accumulated on the baffle 31, the baffle 31 is forced to move downwards by the impact of the rainwater, the guide cylinder 366 can move for a certain distance on the inner side of the spiral groove 3641, the gap between the two water leakage holes can be enlarged, so that more rainwater flows through in unit time, and some large-volume impurities can fall off, thereby avoiding the blockage of the well lid, rainwater can impact the fan sheet 33 in a large scale, the fan sheet 33 rotates rapidly, the disturbing frame 32 can drive the brush 37 to disturb the baffle 31 back and forth, and therefore sundries with large volume are cleaned, and blockage is avoided; when the rain water is over, the baffle 31 automatically returns to the initial state under the elastic force of the return spring 362.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The utility model provides a nodular cast iron well lid drainage filter equipment, includes well lid seat (1), apron (2) and filtering component (3), its characterized in that: the well cover comprises a well cover seat (1), a filtering assembly (3) and a cover plate (2), wherein the filtering assembly (3) is arranged on the inner side of the well cover seat (1), the well cover seat (1) comprises a skirt edge (11), a main body (12) and a reinforcing rib block (13), the skirt edge (11) is fixed at the outer edge of the main body (12), the reinforcing rib block (13) is arranged at the joint of the skirt edge (11) and the main body (12), the cover plate (2) is arranged above the main body (12), and the inner wall of the main body (12) is in contact;
the filtering component (3) comprises a baffle (31), a disturbing frame (32), a fan sheet (33), a connecting rod (34), a partition plate (35) and a reset component (36), wherein a first water leakage hole (311) is formed in the baffle (31), the disturbing frame (32) is arranged above the baffle (31), the center of the disturbing frame (32) is connected with the top end of the connecting rod (34), the connecting rod (34) is movably connected with the baffle (31) through a bearing, the fan sheet (33) is installed at the bottom end of the connecting rod (34), the fan sheet (33) is positioned under the baffle (31), the partition plate (35) is further arranged below the baffle (31), a second water leakage hole (351) is formed in the partition plate (35), the second water leakage hole (351) and the first water leakage hole (311) are round holes with the same size, the second water leakage hole (351) is positioned at the oblique position of the first water leakage hole (311), the partition plate (35) and the baffle (31) are both connected with the reset component (36), the reset assembly (36) is positioned on the side wall of the main body (12), the reset assembly (36) comprises a transition ring (361), a reset spring (362), balls (363), a jacket (364), a transverse plate (365) and a guide cylinder (366), install closing plate ring (38) on transition ring (361), the outer wall and the jacket (364) contact of closing plate ring (38), the edge of transition ring (361) fixed connection baffle (31), ball (363) are installed to the bottom surface of transition ring (361), ball (363) still contact with the upper surface of diaphragm (365), the edge of diaphragm (365) and division board (35) is fixed, the below of diaphragm (365) is equipped with reset spring (362), the bottom and the jacket (364) contact of reset spring (362), jacket (364) are installed on the inner wall of main part (12), spiral groove (3641) have been seted up on the inner wall of jacket (364), the inner wall and the direction cylinder (366 swing joint of spiral groove (3641).
2. The ductile cast iron manhole cover drainage filtering device according to claim 1, wherein: the guide cylinder (366) is mounted on the outer wall of the transition ring (361).
3. The ductile cast iron manhole cover drainage filtering device according to claim 1, wherein: the bottom surface of the disturbing frame (32) is provided with evenly distributed brushes (37), and the bottom ends of the brushes (37) are in contact with the baffle plate (31).
4. The ductile cast iron manhole cover drainage filtering device according to claim 1, wherein: the bottom wall of the transition ring (361) and the surface of the transverse plate (365) are both provided with circular groove rings matched with the balls (363).
5. The use method of the ductile iron manhole cover drainage filter device according to claim 1, comprising the following steps:
s1: when small precipitation occurs, rainwater is mixed with impurities and enters the well cover, and the second water leakage holes (351) are positioned below the first water leakage holes (311) in an inclined mode, so that the rainwater and small impurities can flow away along gaps between the second water leakage holes (351) and the first water leakage holes (311), and large-volume impurities can be left on the baffle (31);
s2: when larger precipitation occurs, a large amount of rainwater is mixed with a large amount of sundries to enter the well lid, the rainwater and some small sundries can flow away along the gap between the second water leakage hole (351) and the first water leakage hole (311), and some sundries with larger volume can be left on the baffle plate (31), because more sundries are accumulated on the baffle plate (31), the impact baffle plate (31) of the rainwater can be forced to move downwards, and meanwhile, the impact baffle plate (31) can move obliquely, so that the impact baffle plate (31) and the isolation plate (35) can change angles,
s3: the gap between the second water leakage hole (351) and the first water leakage hole (311) is enlarged, so that more rainwater flows in unit time, and meanwhile, sundries with larger volume also fall down, so that the well cover is prevented from being blocked;
s4: after the rainwater is finished, the baffle plate (31) automatically returns to the initial state under the action of the elastic force of the return spring (362).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455142.2A CN111576600B (en) | 2020-05-26 | 2020-05-26 | Drainage filtering device and method for nodular cast iron well lid |
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| CN202010455142.2A CN111576600B (en) | 2020-05-26 | 2020-05-26 | Drainage filtering device and method for nodular cast iron well lid |
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| CN111576600B true CN111576600B (en) | 2021-04-30 |
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| CN112431295B (en) * | 2020-11-25 | 2022-03-25 | 浙江恒炜建设集团有限公司 | Spiral municipal drainage is with preventing stifled inspection shaft lid |
| CN112709130B (en) * | 2020-12-23 | 2023-10-24 | 青岛林海建设工程有限公司 | Municipal bridge drainage device easy to clean |
| CN114045878B (en) * | 2021-10-29 | 2023-06-23 | 安徽普瑞明精密机械有限公司 | Safety detection early warning pipe gallery well lid and early warning method thereof |
| CN116654166B (en) * | 2023-07-06 | 2023-12-08 | 济宁三泰和游艇制造有限公司 | Drainage tank structure of yacht |
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| WO2005035888A1 (en) * | 2003-10-14 | 2005-04-21 | Jin-Whan Kim | Cover for providing a variable opening level |
| CN104060680B (en) * | 2014-06-30 | 2015-08-19 | 东南大学 | A kind of rotary from switch inspection well cover |
| CN108914973A (en) * | 2017-03-22 | 2018-11-30 | 杭州富阳新远新能源有限公司 | A kind of rotary type block-resistant well lid that municipal works use |
| CN107747350A (en) * | 2017-10-31 | 2018-03-02 | 成都易信达科技股份有限公司 | A kind of well lid with flood control function |
| CN108532734A (en) * | 2018-06-04 | 2018-09-14 | 程度 | A kind of anti-blocking well lid of municipal administration |
| CN110409602B (en) * | 2019-07-23 | 2021-02-26 | 广东宏骏建筑工程有限公司 | Civil air defense underground drainage system |
| CN110528668B (en) * | 2019-09-06 | 2021-04-30 | 安徽省飞龙新型材料有限公司 | Anti-blocking well lid for garbage filtration |
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| CN111576600A (en) | 2020-08-25 |
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