CN113529912A - Hydraulic self-control rainwater flow dividing device - Google Patents
Hydraulic self-control rainwater flow dividing device Download PDFInfo
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- CN113529912A CN113529912A CN202110991491.0A CN202110991491A CN113529912A CN 113529912 A CN113529912 A CN 113529912A CN 202110991491 A CN202110991491 A CN 202110991491A CN 113529912 A CN113529912 A CN 113529912A
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- floating block
- block
- rainwater
- water
- water outlet
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
A hydraulic self-control rainwater flow dividing device is characterized in that at the early stage of rainfall, no water is accumulated in a sewage collecting box, a solid block is positioned above a water outlet II, and rainwater is discharged through the water outlet II for centralized treatment; the accumulated water in the sewage collection tank is accumulated along with the increase of rainfall, the combined floating block II floats upwards, the solid block moves downwards, when the solid block moves downwards to block the water outlet II, the water outlet I is still shielded by the lower part of the light floating block II, the accumulated water accumulation is accelerated, the combined floating block II is pushed to continuously float upwards, the water level rises to the lower end of the spherical floating block, and the combined floating block I rises; the combined floating block II floats to a certain height, the first water outlet is unblocked, and sewage in the sewage collecting tank is discharged into a municipal sewage pipe for treatment; rainwater at the middle and later stages is continuously gathered, the water level in the sewage collecting tank rises to a certain degree, the combined floating block floats upwards to the lower end of the rainwater discharge pipe, most of the water inlet is blocked by the disc floating block, and most of the rainwater flows into the rainwater discharge pipe; the device has good flow discarding effect and is convenient for daily management and maintenance.
Description
Technical Field
The invention relates to a hydraulic self-control rainwater flow distribution device, and belongs to the technical field of rainwater flow distribution.
Background
A large amount of polluting gases in the air, such as acid gas, automobile exhaust, factory waste gas and the like, are dissolved in the rainwater at the early stage of rainfall, and the rainwater falls to the ground and then passes through heavily polluted areas such as asphalt felt roofs, asphalt concrete roads, construction sites and the like, so that the initial rainwater contains a large amount of pollutants such as organic matters, pathogens, heavy metals, grease, suspended solids and the like, and if the pollutants are directly discharged into rivers without treatment, the water body is seriously polluted. Therefore, the treatment of the initial rainwater is of great significance for maintaining good water ecological environment.
At present, the treatment technology of initial rainwater mainly comprises split-flow drainage and initial rainwater discarding. The split-flow drainage technology is characterized in that a split-flow device is arranged on a rainwater drainage system, so that initial rainwater is split to a sewage pipe and is directly conveyed to a sewage treatment plant, and the treatment pressure of the sewage treatment plant is increased; the initial rainwater discarding device is mostly controlled by the impact force of rainwater or electric power, has high dependence on the rainfall, has limitation, has high precision, and is not beneficial to wide use and daily maintenance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a hydraulic self-control rainwater flow dividing device which can realize the flow discarding of initial rainwater in the early stage of rainfall, can adopt different flow dividing modes under the conditions of different rainfall conditions and different rainfall quantities to perform primary treatment on the rainwater, relieves the pressure of a sewage treatment plant, and is convenient for daily management and maintenance.
In order to achieve the purpose, the invention provides a hydraulic self-control rainwater flow dividing device which comprises a sewage collecting box, wherein a water inlet is formed in one side of the upper end of the sewage collecting box, a rainwater discharge port is formed in the upper part of the side wall connected with the water inlet, and a rainwater discharge pipe communicated with the outside is installed on the rainwater discharge port;
a first combined floating block is arranged in the sewage collection box below the water inlet, the first combined floating block comprises a disc floating block and a spherical floating block connected below the disc floating block through a connecting rod, the first combined floating block is slidably arranged in a connecting frame, the connecting frame comprises a frame body, the upper end of the frame body is connected with the lower end face of a top plate of the sewage collection box at the periphery of the water inlet, a through hole is formed in the center of the lower end of the frame body, the connecting rod is slidably arranged in the through hole in a penetrating manner, and the disc floating block is slidably connected in the frame body;
when the first combined floating block is not subjected to buoyancy, the spherical floating block is positioned at the lower middle position of the sewage collecting box; when the second water outlet is completely uncovered and the water level in the sewage collecting tank reaches a stable state, the upper end of the disc floating block is positioned at the lower end of the rainwater outlet;
the side wall of the sewage collecting box is also provided with a combined floating block II in a laminating manner, and the combined floating block II is in a cross shape and sequentially comprises a heavy floating block, a light floating block I and a light floating block II from top to bottom; a first water outlet is formed in the side wall of the position where the second light floating block is located and is communicated with an external water drainage pipe;
one side of the combined floating block II is connected with the solid block through a pulley block, the pulley block comprises a pulley and a pull rope, the pulley is fixed on the side wall of the sewage collection box, the pull rope winds around the pulley, one end of the pull rope is connected with the light floating block I through a connecting lock catch, and the other end of the pull rope is connected with the solid block; a second water outlet is formed in the bottom of the side wall of the sewage collecting box below the pulley and corresponds to the position where the solid block moves to the lowest end;
the position of the first water outlet is higher than that of the second water outlet;
when the combined floating block II is not subjected to buoyancy, the weight of the combined floating block II is slightly larger than that of the solid block; when the sum of the pulling force of the pull rope on the combined floating block II and the buoyancy force of the water in the sewage collection tank on the combined floating block II is larger than the weight of the combined floating block II, the solid block moves downwards.
Furthermore, the rainwater discharge pipe is gradually inclined downwards from the water inlet end to the water outlet end along with the distance from the sewage collection box, and a pipe orifice at the water inlet end of the rainwater discharge pipe is provided with a special-shaped structure which comprises an upper arc-shaped section and a lower vertical section, wherein the upper arc-shaped section extends to the water inlet in the direction of the water inlet, and the lower vertical section is attached to the lower part of the rainwater discharge port; a first filter screen is arranged on the rainwater discharge port and is matched with the special-shaped structure of the water inlet end pipe orifice.
Furthermore, an emergency discharge port is arranged on the side wall of the sewage collecting box body, and the opening height of the emergency discharge port is positioned at the upper part of the sewage collecting box.
Furthermore, a second filter screen and a third filter screen are respectively arranged on the side wall of the sewage collecting box corresponding to the first water outlet and the second water outlet.
Furthermore, the first light floating block is in a disc shape; the pull rope is a steel wire rope, a first steel pipe is sleeved on a first pull rope section between the pulley and the first light floating block, a second steel pipe is sleeved on a second pull rope section between the pulley and the solid block, the length of the first steel pipe is smaller than that of the first pull rope section, and the length difference between the first steel pipe and the solid block is larger than the distance between the bottom of the second light floating block and the first water outlet when the second combined floating block is not subjected to buoyancy; the length of the second steel pipe is smaller than that of the second stay cord section.
Furthermore, the upper end surface of the disc floating block has the same inclination angle with the rainwater discharge pipe.
According to the device, the combined floating block I and the combined floating block II are arranged in the sewage collecting box, initial rainwater enters the sewage collecting box through the water inlet in the early stage of rainfall, the solid block is positioned above the water outlet II due to the fact that no water is accumulated in the sewage collecting box at the moment, the water outlet II is open, and the rainwater is discharged through the water outlet II and enters the municipal sewage pipe for centralized treatment; when the sum of the pulling force of the pulling rope on the combined floating block II and the buoyancy of the water in the sewage collection box on the combined floating block II is larger than the weight of the combined floating block II, the pulling rope slides to the side where the solid block is located, the solid block moves downwards, when the solid block moves downwards to block the water outlet II, the water outlet I is still shielded by the lower part of the light floating block II, the accumulated water is gathered and accelerated, the combined floating block II is pushed to continuously float upwards, and when the water level rises to the lower end of the combined floating block I, the combined floating block I also starts to rise; the combined floating block II continuously floats to a certain height, the first water outlet is unblocked, and sewage in the sewage collecting tank is discharged into a municipal sewage pipe through an external water discharge pipe for centralized treatment; rainwater in the middle and later periods continuously flows in, the water level in the sewage collecting tank continuously rises, the first combined floating block is pushed to continuously float upwards, under the drainage action of the first water outlet, the water level in the sewage tank rises to a certain degree and then reaches a stable state, the first combined floating block floats upwards to the lower end of the rainwater discharge pipe and then is stable, at the moment, the disc floating block blocks most of the water inlet, most of the rainwater in the middle and later periods flows into the rainwater discharge pipe under the guiding action of the disc floating block, and only a small part of the rainwater flows into the sewage collecting tank from the gap between the disc floating block and the water inlet to supplement the water level; after the rainfall stops, along with the discharge of the water body in the sewage collecting tank, the water level is reduced, the combined floating block I and the combined floating block II are restored to the original state, and the next initial rainwater discarding cycle is prepared. The invention avoids the pollution of non-initial rainwater caused by the mixing of the initial rainwater and the non-initial rainwater in the same cavity; in the device, the initial rainwater can be discharged for a longer time than other devices, and partial non-initial rainwater flows in through the gap between the water inlet and the disc floating block, so that the concentration of the initial rainwater in the sewage tank is reduced, and the effect of reducing the pressure of a sewage treatment plant is achieved; the opening of the device does not depend on the rain, the drain pipe II at the bottom of the sewage collecting box is in an opening state in the early stage of rainfall, initial rainwater with the flow rate being multiple times of the volume of the sewage box can be abandoned, the flow abandoning effect is good, the daily management and the maintenance are convenient, the cost is low, and the device is suitable for popularization and application.
Drawings
FIG. 1 is a schematic view of the early stage of rainfall according to the present invention;
FIG. 2 is a schematic diagram of the structure of the middle and late rainfall period of the present invention;
FIG. 3 is a schematic view of the combination floating block I and the frame body.
In the figure: 1. the device comprises a sewage collecting box, 2, a water inlet, 3, a rainwater discharge port, 4, a rainwater discharge pipe, 5, a first combined floating block, 6, a disk floating block, 7, a connecting rod, 8, a spherical floating block, 9, a frame body, 10, a through hole, 11, an emergency discharge port, 12, a second combined floating block, 13, a heavy floating block, 14, a first light floating block, 15, a second light floating block, 16, a first water discharge port, 17, a solid block, 18, a pulley, 19, a pull rope, 20, a connecting lock catch, 21, a second water discharge port, 22, an upper arc-shaped section, 23, a lower vertical section, 24, a first filter screen, 25, a second filter screen, 26, a third filter screen, 27, a first pull rope section, 28, a first steel pipe, 29, a second pull rope section, 30 and a second steel pipe.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 3, a hydraulic self-control rainwater diversion device comprises a sewage collection tank 1, wherein a water inlet 2 is formed in one side of the upper end of the sewage collection tank 1, a rainwater discharge port 3 is formed in the upper part of the side wall connected with the water inlet 2, and a rainwater discharge pipe 4 communicated with the outside is installed on the rainwater discharge port 3;
a first combined floating block 5 is arranged in the sewage collection box below the water inlet 2, the first combined floating block 5 comprises a disc floating block 6 and a spherical floating block 8 connected below the disc floating block through a connecting rod 7, the first combined floating block 5 is slidably arranged in a connecting frame, the connecting frame comprises a frame body 9, the upper end of the frame body 9 is connected with the lower end face of a top plate of the sewage collection box 1 at the periphery of the water inlet 2, a through hole 10 is formed in the center of the lower end of the frame body 9, the connecting rod 7 is slidably arranged in the through hole 10, and the disc floating block 6 is slidably connected in the frame body 9;
when the combined floating block I5 is not subjected to buoyancy, the spherical floating block 8 is positioned at the lower middle part of the sewage collection box 1; when the second water outlet 21 is completely uncovered and the water level in the sewage collecting tank reaches a stable state, the upper end of the disc floating block 6 is positioned at the lower end of the rainwater outlet 3;
the side wall of the sewage collection box 1 is also provided with a combined floating block II 12 in a joint manner, the combined floating block II 12 is in a cross shape and sequentially comprises a heavy floating block 13, a light floating block I14 and a light floating block II 15 from top to bottom, the axes of the heavy floating block 13, the light floating block I14 and the light floating block II 15 are superposed, and the diameter of the light floating block I14 is larger than that of the heavy floating block 13 and that of the light floating block II 15; a first water outlet 16 is formed in the side wall of the position where the second light floating block 15 is located, and the first water outlet 16 is communicated with an external water drainage pipe;
one side of the second combined floating block 12 is connected with a solid block 17 through a pulley block, the pulley block comprises a pulley 18 and a pull rope 19, the pulley 18 is fixed on the side wall, the pull rope 19 winds around the pulley 18, one end of the pull rope is connected with the first light floating block 14 through a connecting lock catch 20, and the other end of the pull rope is connected with the solid block 17; a second water outlet 21 is formed in the bottom of the side wall below the pulley 18, and the second water outlet 21 corresponds to the position where the lowest end of the solid block 17 is located when the solid block moves;
the first water outlet 16 is higher than the second water outlet 21;
when the combined floating block II 12 is not subjected to buoyancy, the weight of the combined floating block II is slightly larger than that of the solid block 17; when the sum of the pulling force of the pulling rope 19 to the combined floating block II 12 and the buoyancy force of the water in the sewage collection tank 1 to the combined floating block II 12 is larger than the weight of the combined floating block II 12, the solid block 17 moves downwards.
In order to prevent impurities in the sewage collecting box 1 from entering the rainwater discharge pipe 4 along with rainwater, the rainwater discharge pipe 4 is gradually inclined downwards along with the distance from a water inlet end to a water outlet end of the sewage collecting box 1, and simultaneously, in order to prevent the rainwater from splashing sundries floating on the water surface in the box into the rainwater discharge pipe 4 when falling into the sewage collecting box, a pipe orifice at the water inlet end of the rainwater discharge pipe 4 is of a special-shaped structure, the special-shaped structure comprises an upper arc-shaped section 22 and a lower vertical section 23, the upper arc-shaped section 22 extends to a water inlet in the direction of the water inlet 2, and the lower vertical section 23 is attached to the lower part of a rainwater discharge port; in order to further improve the rainwater cleanliness of entering the rainwater discharge pipe 4, a first filter screen 24 is arranged on the rainwater discharge port, and the first filter screen 24 is matched with the special-shaped structure of the water inlet end pipe orifice.
In order to prevent the water level in the sewage collecting tank 1 from being too high, an emergency discharge port 11 is arranged on the side wall of the sewage collecting tank body, and the opening height of the emergency discharge port 11 is positioned at the upper part of the sewage collecting tank.
In order to prevent the first drain opening 16 and the second drain opening 21 from being blocked by impurities and ensure smooth drainage, a filter screen 25 and a filter screen 26 are respectively arranged on the corresponding side walls of the first drain opening 16 and the second drain opening 21.
In order to increase the contact area of the combined floating block II 12 and rainwater and ensure the lifting speed of the combined floating block II under the action of buoyancy, the light floating block I14 is in a disc shape; in order to ensure the service life of the pull rope 19, the pull rope 19 is preferably a steel wire rope, in order to prevent the combined floating block II 12 from floating too high, a steel pipe I28 is sleeved on a pull rope section I27 between the pulley 18 and the light floating block I14, in order to prevent the solid block 17 from swinging under the action of water flow in the descending process, a steel pipe II 30 is sleeved on a pull rope section II 29 between the pulley 18 and the solid block 17, the length of the steel pipe I28 is smaller than that of the pull rope section I27, and the length difference between the steel pipe I28 and the solid block I is larger than the distance between the bottom of the light floating block II 15 and the water outlet I16 when the combined floating block II 12 is not subjected to buoyancy; the length of the second steel pipe 30 is smaller than that of the second pull rope section 29.
In order to improve the diversion effect on rainwater, the upper end surface of the disc floating block 6 has the same inclination angle with the rainwater discharge pipe 4.
As shown in fig. 1, in the early stage of rainfall, little water is accumulated in the sewage collection tank 1, the accumulated water buoyancy cannot enable the combined floating block I5 and the combined floating block II 12 to float, the weight of the combined floating block II 12 is larger than that of the solid block 17, the weight of the combined floating block II 12 enables the pull rope 19 to slide to the side where the combined floating block II 12 is located under the action of the pulley block, the water outlet I16 is blocked by the light floating block II 15, meanwhile, the end where the solid block 17 is located rises, and the water outlet II 21 is in an open state;
because the combined floating block I5 is not subjected to buoyancy, the water inlet 2 is completely opened, initial rainwater enters the sewage collecting box 1 through the water inlet 2 and is discharged into a municipal sewage pipe for centralized treatment through a water outlet II 21 formed in the bottom of the side wall of the sewage collecting box 1.
As shown in fig. 2, as the rainfall in the sewage collection tank 1 increases or the rainfall increases, the second drainage port 21 cannot drain water in time, accumulated water begins to exist in the sewage collection tank 1, when the accumulated water is accumulated to a certain degree, the second combined floating block 12 begins to float upwards, when the sum of the pulling force of the pulling rope 19 on the second combined floating block 12 and the buoyancy force of the water in the sewage collection tank 1 on the second combined floating block 12 is greater than the weight of the second combined floating block 12, the pulling rope 19 slides to the side where the solid block 17 is located, the solid block 17 moves downwards, when the solid block 17 moves downwards to block the second drainage port 21, the first drainage port 16 is still shielded by the lower part of the second light floating block 15, the accumulated water accumulation is accelerated, the second combined floating block 12 is pushed to continuously float upwards, and when the water level rises to the lower end of the spherical floating block 8, the first combined floating block 5 also begins to rise; the combined floating block II 12 continuously floats to a certain height, the first water outlet 16 is unblocked, and sewage in the sewage collection tank 1 is discharged into a municipal sewage pipe through an external water discharge pipe for centralized treatment; rainwater in the middle and later periods continuously converges, the water level in the sewage collecting tank 1 continuously rises, the combined floating block I5 is pushed to continuously float upwards, the water level in the sewage tank is increased to a certain degree under the drainage action of the drainage port I16 and then reaches a stable state, the upper end of the disc floating block 6 floats upwards to the lower end of the rainwater drainage port 3 and then is stable, at the moment, most of the rainwater in the middle and later periods blocks the water inlet by the disc floating block 6, most of the rainwater in the middle and later periods flows into the rainwater drainage pipe 4 under the guiding action of the disc floating block 6, and only a small part of the rainwater flows into the sewage collecting tank 1 from the gap between the disc floating block 6 and the water inlet 2 to supplement the water level;
under the condition that the rain is too strong and the rain water in the sewage collection box 1 cannot be timely discharged from the first water discharge port 16, the water level continues to rise, and when the rain water rises to the emergency discharge port 11, the rain water is timely discharged through the emergency discharge port 11, so that the influence on the normal work of the first combined floating block and the second combined floating block caused by the overhigh water level in the sewage collection box 1 is prevented.
After the rainfall stops, along with the discharge of the water body in the sewage collection tank 1, the water level is reduced, the combined floating block I5 and the combined floating block II 12 are restored to the original state, and the next initial rainwater flow discarding circulation is prepared.
Claims (6)
1. A hydraulic self-control rainwater flow dividing device is characterized by comprising a sewage collecting box (1), wherein a water inlet (2) is formed in one side of the upper end of the sewage collecting box (1), a rainwater discharge port (3) is formed in the upper portion of the side wall connected with the water inlet (2), and a rainwater discharge pipe (4) communicated with the outside is mounted on the rainwater discharge port (3);
a first combined floating block (5) is arranged in the sewage collection box (1) below the water inlet (2), the first combined floating block (5) comprises a disc floating block (6) and a spherical floating block (8) connected below the disc floating block through a connecting rod (7), the first combined floating block (5) is slidably installed in a connecting frame, the connecting frame comprises a frame body (9), the upper end of the frame body (9) is connected with the lower end face of a top plate of the sewage collection box (1) on the periphery of the water inlet (2), a through hole (10) is formed in the center of the lower end of the frame body (9), the connecting rod (7) is slidably arranged in the through hole (10), and the disc floating block (6) is slidably connected in the frame body (9);
when the combined floating block I (5) is not subjected to buoyancy, the spherical floating block (8) is positioned at the lower middle part of the sewage collection box (1); when the water outlet II (21) is completely uncovered and the water level in the sewage collection box (1) reaches a stable state, the upper end of the disc floating block (6) is positioned at the lower end of the rainwater discharge port (3);
a combined floating block II (12) is also attached to the side wall of the sewage collection box (1), the combined floating block II (12) is in a cross shape and sequentially comprises a heavy floating block (13), a light floating block I (14) and a light floating block II (15) from top to bottom; a first water outlet (16) is formed in the side wall of the position where the second light floating block (15) is located, and the first water outlet (16) is communicated with an external water drainage pipe;
one side of the combined floating block II (12) is connected with the solid block (17) through a pulley block, the pulley block comprises a pulley (18) and a pull rope (19), the pulley (18) is fixed on the side wall of the sewage collection box, the pull rope (19) winds around the pulley (18), one end of the pull rope is connected with the light floating block I (14) through a connecting lock catch (20), and the other end of the pull rope is connected with the solid block (17); a second water outlet (21) is formed in the bottom of the side wall of the sewage collection box below the pulley (18), and the second water outlet (21) corresponds to the position where the lowest end of the solid block (17) runs;
the position of the first water outlet (16) is higher than that of the second water outlet (21);
when the combined floating block II (12) is not subjected to buoyancy, the weight of the combined floating block II is slightly larger than that of the solid block (17); when the sum of the pulling force of the pull rope (19) to the combined floating block II (12) and the buoyancy force of the water in the sewage collection box (1) to the combined floating block II (12) is larger than the weight of the combined floating block II (12), the solid block (17) moves downwards.
2. A hydraulic self-control rainwater flow distribution device according to claim 1, wherein the rainwater discharge pipe (4) is gradually inclined downwards from the water inlet end to the water outlet end along with the distance from the sewage collection tank (1), the mouth of the water inlet end of the rainwater discharge pipe has a special-shaped structure, the special-shaped structure comprises an upper arc-shaped section (22) and a lower vertical section (23), the upper arc-shaped section (22) extends to the water inlet (2) along the direction of the water inlet (2), and the lower vertical section (23) is attached to the lower part of the rainwater discharge port (3); a first filter screen (24) is arranged on the rainwater discharge port (3), and the first filter screen (24) is matched with the special-shaped structure of the water inlet end pipe orifice.
3. A hydraulic self-controlled rainwater diversion device as claimed in claim 1 or 2 wherein an emergency discharge port (11) is provided on the side wall of the sewage collection tank (1), and the opening height of the emergency discharge port (11) is located at the upper part of the sewage collection tank (1).
4. A water power self-controlled rainwater flow distributing device according to claim 3, wherein the side walls of the sewage collecting box corresponding to the first water outlet (16) and the second water outlet (21) are respectively provided with a second filter screen (25) and a third filter screen (26).
5. A hydraulic self-controlled rainwater diversion device as claimed in claim 4 wherein said first lightweight buoyancy block (14) is disc-shaped; the pull rope (19) is a steel wire rope, a first steel pipe (28) is sleeved on a first pull rope section (27) between the pulley (18) and the first light floating block (14), a second steel pipe (30) is sleeved on a second pull rope section (29) between the pulley (18) and the solid block (17), the length of the first steel pipe (28) is smaller than that of the first pull rope section (27), and the length difference between the first steel pipe and the second steel pipe is larger than the distance between the bottom of the second light floating block (15) and the first water outlet (16) when the second combined floating block (12) is not subjected to buoyancy; the length of the second steel pipe (30) is smaller than that of the second stay cord section (29).
6. A water power self-controlled rainwater diversion device as claimed in claim 2, wherein the upper end surface of said disk floating block (6) has the same inclination angle as the rainwater discharge pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110991491.0A CN113529912A (en) | 2021-08-27 | 2021-08-27 | Hydraulic self-control rainwater flow dividing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110991491.0A CN113529912A (en) | 2021-08-27 | 2021-08-27 | Hydraulic self-control rainwater flow dividing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113529912A true CN113529912A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110991491.0A Withdrawn CN113529912A (en) | 2021-08-27 | 2021-08-27 | Hydraulic self-control rainwater flow dividing device |
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| Country | Link |
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| CN (1) | CN113529912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797206A (en) * | 2022-04-20 | 2022-07-29 | 尼旭东 | Hydraulic engineering dredging device and dredging method |
-
2021
- 2021-08-27 CN CN202110991491.0A patent/CN113529912A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797206A (en) * | 2022-04-20 | 2022-07-29 | 尼旭东 | Hydraulic engineering dredging device and dredging method |
| CN114797206B (en) * | 2022-04-20 | 2023-10-10 | 珠海市厚江疏浚工程有限公司 | Hydraulic engineering dredging device and dredging method |
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Application publication date: 20211022 |