CN212641391U - Siphon drainage device for hydraulic engineering - Google Patents

Siphon drainage device for hydraulic engineering Download PDF

Info

Publication number
CN212641391U
CN212641391U CN202020749144.8U CN202020749144U CN212641391U CN 212641391 U CN212641391 U CN 212641391U CN 202020749144 U CN202020749144 U CN 202020749144U CN 212641391 U CN212641391 U CN 212641391U
Authority
CN
China
Prior art keywords
pipeline
flood
flood discharge
fixedly connected
hydraulic engineering
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.)
Withdrawn - After Issue
Application number
CN202020749144.8U
Other languages
Chinese (zh)
Inventor
许聪聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Mingkang Construction Engineering Co ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202020749144.8U priority Critical patent/CN212641391U/en
Application granted granted Critical
Publication of CN212641391U publication Critical patent/CN212641391U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sewage (AREA)

Abstract

The utility model relates to a hydraulic engineering technical field just discloses a siphon drainage device for hydraulic engineering, including the flood control dam body, the right side wall of flood control dam body is located the position that is close to the bottom and has seted up the flood discharge groove, the left side wall of flood control dam body is located middle position on the upper side and has seted up the installation base, the inside of flood control dam body is provided with siphon flood discharge device, the water inlet of siphon flood discharge device is provided with filter equipment. This siphon drainage device for hydraulic engineering sets up filter equipment, filter the inside bold impurity of flood, carry out the automatically cleaning to filtering the screen panel simultaneously, prevent to filter the screen panel and appear blockking up influence flood discharge efficiency, set up siphon flood discharge device, flood discharge speed is high, the flood discharge in-process need not extra power, and it is fast to flow velocity at the inside rivers of flood discharge in-process pipeline, thereby prevent that the sediment of aquatic deposit from leading to blockking up in the pipeline, construction and maintenance cost are low, and is suitable for being generalized to use.

Description

Siphon drainage device for hydraulic engineering
Technical Field
The utility model relates to a hydraulic engineering technical field specifically is a siphon drainage device for hydraulic engineering.
Background
General dam carries out the flood discharge and needs the manual work to control the gate flood discharge or use the water pump to draw water the flood discharge, need the manual work to operate, however the water level is soared and is generally qualified for the next round of competitions at heavy rain weather, the manual operation is dangerous big, and the gate is maintained comparatively loaded down with trivial details with the maintenance of water pump, lead to cost increase, some dam body are inside to bury ordinary communicating pipe underground and carry out the flood discharge, the too little displacement of pipeline is low, flood control effect is poor, the pipeline is buried too much underground and can lead to dam body intensity to reduce, and the jam appears easily in the pipeline inside, the pipeline cleaning work of jam is complicated.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a siphon drainage device for hydraulic engineering has solved dam body flood control and has had a high cost, and general flood discharge pipeline flood discharge effect difference uses inconvenient problem.
(II) technical scheme
For realize above-mentioned reduction flood control cost, improve flood discharge effect and the purpose of facilitate the use, the utility model provides a following technical scheme: the utility model provides a siphon drainage device for hydraulic engineering, includes the flood control dam body, the right side wall of flood control dam body is located the position of being close to the bottom and has seted up the flood discharge groove, the left side wall of flood control dam body is located middle position on the upper side and has seted up the installation base, the inside of flood control dam body is provided with siphon flood discharge device, the water inlet of siphon flood discharge device is provided with filter equipment.
Preferably, siphon flood discharge device includes ponding pipeline, pressurized conduit, link, pressure release piece and inlet pipe way, ponding pipeline fixed connection is in the inside of flood control dam body, the right-hand member of ponding pipeline runs through the right side wall of flood control dam body and extends the position of flood discharge groove top, the right-hand member of ponding pipeline and the top fixed connection of pressurized conduit, pressurized conduit's bottom extends the inside of flood discharge groove, pressurized conduit's bottom and the top fixed connection of link, the bottom and the pressure release piece fixed connection of link, inlet pipe way and ponding pipeline's left end fixed connection, inlet pipe way keeps away from the one end of ponding pipeline upwards runs through the installation boss and extends the top of installation boss, inlet pipe way extends to the one end fixedly connected with filter equipment of installation boss top, through ponding pipeline, pressurized conduit, The cooperation between link, pressure release piece and the inlet line excretes the flood, and the inside flood velocity of flow of pipeline is high, and it is efficient to excrete.
Preferably, the filtering device comprises a flood discharge hopper, a filtering screen cover, a trash storage box, a lower connecting ring, a cleaning scraper, an upper connecting ring, a positioning bearing and an arc scraper, the bottom of the flood discharge hopper is fixedly connected with the top of a water inlet pipeline, the filtering screen cover is fixedly connected with the top of the flood discharge hopper, the bottom of the trash storage box is fixedly connected with the outer wall of the water inlet pipeline and is positioned close to the top, the bottom of the lower connecting ring is rotatably connected with the top of the trash storage box through a bearing, the cleaning scraper is fixedly connected with the top of the lower connecting ring, the bottom of the upper connecting ring is fixedly connected with the top of the cleaning scraper, the positioning bearing is rotatably connected with the top of the filtering screen cover and is positioned in the middle, one end of the arc scraper is fixedly connected with the outer wall of the positioning bearing, and one end of the arc scraper, which is far away from the positioning bearing, through flood discharge fill, filter screen panel, storage trash box, lower go-between, clean scraper blade, go up the go-between, location bearing and the cooperation between the arc scraper blade, filter the excreted flood, prevent to take place to block up.
Preferably, the shape of the flood discharge block is conical, the impact force on the flood discharge groove is reduced by the arrangement of the flood discharge block, and the service life of the flood discharge groove is prolonged.
Preferably, the shape of cleaning blade is clockwise heliciform, cleaning blade's horizontal direction's cross sectional shape is parallelogram, can strike cleaning blade when flood gets into the flood discharge and fight, and cleaning blade rotates under the effect of impact force, and the impurity that will filter the screen panel outer wall promotes downwards and clears away.
Preferably, the lower connection ring has an inner diameter equal to that of the trash case, and the flood discharge bucket has a diameter smaller than that of the lower connection ring, so that the foreign materials are introduced into the trash case through a gap between the lower connection ring and the flood discharge bucket.
Preferably, the top of the flood discharge bucket is fixedly connected with a vertical baffle which is arranged to prevent water flow from generating vortexes when flowing into the water inlet pipeline.
Preferably, the outer wall that ponding pipeline and inlet pipe were located flood control dam body inside has cup jointed anticorrosive protective sheath, sets up anticorrosive protective sheath, protects ponding pipeline and inlet pipe way, has improved the device's life.
Compared with the prior art, the utility model provides a siphon drainage device for hydraulic engineering possesses following beneficial effect:
1. the siphon drainage device for the hydraulic engineering is provided with the accumulating pipeline, the pressurizing pipeline, the connecting frame, the pressure releasing block and the water inlet pipeline, wherein water flows into the accumulating pipeline through the water inlet pipeline, the flow velocity of the water flow in the accumulating pipeline is slower due to the transverse arrangement of the accumulating pipeline, when the water amount in the accumulating pipeline is gradually increased until the water flow reaches an overflowing state, the water in the accumulating pipeline enters the pressurizing pipeline in the overflowing state, the water flow entering the pressurizing pipeline is accelerated to flow downwards under the action of gravity, meanwhile, the water flow close to the top of the pressurizing pipeline can give the water flow suction force in the accumulating pipeline, the flow velocity of the water flow in the accumulating pipeline is accelerated, the flood discharging speed is accelerated, the water flow is decompressed through the pressure releasing block when flowing out from the inside of the pressurizing pipeline, the water flow is dispersed to the outer side, the flood discharging groove is prevented from being damaged due to overlarge water flow, and no extra power is needed in the flood discharging process, and the flow velocity of the water flow in the pipeline is high in the flood discharge process, so that the sediment in the water is prevented from being deposited in the pipeline to cause blockage.
2. This siphon drainage device for hydraulic engineering, set up the flood discharge fill, filter the screen panel, the trash storage box, lower go-between, clean scraper blade, go up the go-between, location bearing and arc scraper blade, flood can filter through filtering the screen panel before getting into siphon flood discharge device, get rid of aquatic bold impurity, flood can strike clean scraper blade before the flood flows in the flood discharge fill, clean scraper blade receives the impact force and can rotate, clean scraper blade will filter the inside that the screen panel outer wall filters impurity of crossing and discharges into to the trash storage box downwards through rotating, clean scraper blade drives the go-between simultaneously and rotates, it drives the arc scraper blade and rotates to go up the go-between, the impurity that the screen panel top will be filtered to the arc scraper blade is pushed away, thereby prevent to block up, the efficiency of flood discharge is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;
FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;
fig. 4 is an enlarged view of a structure B in fig. 2 according to the present invention.
Wherein: 1. a flood control dam body; 2. a flood discharge trough; 3. mounting a boss; 4. a siphon flood discharge device; 401. an accumulation flow pipe; 402. a booster duct; 403. a connecting frame; 404. releasing the pressure block; 405. a water inlet pipeline; 5. a filtration device; 501. a flood discharge hopper; 502. a filtering net cover; 503. a trash bin; 504. a lower connecting ring; 505. a cleaning blade; 506. an upper connecting ring; 507. positioning the bearing; 508. an arc-shaped scraper.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, the utility model provides a siphon drainage device for hydraulic engineering, including flood control dam body 1, flood control dam body 1's right side wall has been located the position of being close to the bottom and has been seted up flood discharge groove 2, and flood control dam body 1's left side wall has been located the position on the upper side in the middle and has been seted up installation boss 3, and flood control dam body 1's inside is provided with siphon flood discharge device 4, and siphon flood discharge device 4's water inlet is provided with filter equipment 5.
Siphon flood discharge device 4 comprises an accumulating pipeline 401, a pressurizing pipeline 402, a connecting frame 403, a pressure relief block 404 and a water inlet pipeline 405, accumulating pipeline 401 is fixedly connected inside flood control dam body 1, the right end of accumulating pipeline 401 penetrates through the right side wall of flood control dam body 1 and extends to the position above flood discharge groove 2, the right end of accumulating pipeline 401 is fixedly connected with the top of pressurizing pipeline 402, the bottom of pressurizing pipeline 402 extends to the inside of flood discharge groove 2, the bottom of pressurizing pipeline 402 is fixedly connected with the top of connecting frame 403, the bottom of connecting frame 403 is fixedly connected with pressure relief block 404, pressure relief block 404 is conical, pressure relief block 404 is arranged to reduce the impact force on flood discharge groove 2, the service life of flood discharge groove 2 is prolonged, water inlet pipeline 405 is fixedly connected with the left end of accumulating pipeline 401, one end of water inlet pipeline 405 far away from accumulating pipeline 401 upwards penetrates through installation boss 3 and extends to the top of installation boss 3, the end of the water inlet pipeline 405 extending above the mounting boss 3 is fixedly connected with the filtering device 5, the outer walls of the flow accumulating pipeline 401 and the water inlet pipeline 405, which are positioned inside the flood control dam body 1, are sleeved with an anti-corrosion protective sleeve which is arranged to protect the flow accumulating pipeline 401 and the water inlet pipeline 405, so that the service life of the device is prolonged, the flow accumulating pipeline 401, the pressurizing pipeline 402, the connecting frame 403, the pressure relief block 404 and the water inlet pipeline 405 are arranged, water flows into the flow accumulating pipeline 401 through the water inlet pipeline 405, the flow velocity of the water flows in the flow accumulating pipeline 401 is slow due to the transverse arrangement of the flow accumulating pipeline 401, when the water amount inside the flow accumulating pipeline 401 gradually increases until reaching an overflowing state, the water inside the flow accumulating pipeline 401 in the overflowing state enters the pressurizing pipeline 402, the water flow entering the pressurizing pipeline 402 accelerates downward flow under the action of gravity, and meanwhile, the water flow close to the top of the pressurizing pipeline 402 can provide suction force with the water flow inside the flow accumulating, make the inside rivers velocity of flow of ponding pipeline 401 accelerate to the speed of flood discharge has been accelerated, the rivers carry out the pressure release through pressure release piece 404 when booster pipe 402 is inside to be flowed out and make rivers disperse to the outside, thereby prevent that the too big damage flood discharge groove 2 of rivers impact force, the flood discharge in-process need not extra power, and the inside rivers velocity of flow of pipeline is fast at the flood discharge in-process, thereby prevent that the sediment of aquatic from leading to blockking up in the pipeline deposit.
The filtering device 5 comprises a flood discharge bucket 501, a filtering screen 502, a trash bin 503, a lower connecting ring 504, a cleaning scraper 505, an upper connecting ring 506, a positioning bearing 507 and an arc-shaped scraper 508, wherein the bottom of the flood discharge bucket 501 is fixedly connected with the top of a water inlet pipeline 405, the top of the flood discharge bucket 501 is fixedly connected with a vertical baffle plate which is arranged to prevent water from generating vortex when flowing into the water inlet pipeline 405, the filtering screen 502 is fixedly connected with the top of the flood discharge bucket 501, the bottom of the trash bin 503 is fixedly connected with the outer wall of the water inlet pipeline 405 and is positioned close to the top, the bottom of the lower connecting ring 504 is rotatably connected with the top of the trash bin 503 through a bearing, the inner diameter of the lower connecting ring 504 is equal to the inner diameter of the trash bin 503, and the diameter of the flood discharge bucket 501 is smaller than that of the lower connecting ring 504, so that impurities enter the interior of the trash bin 503 through a gap between the lower, the cleaning scraper 505 is fixedly connected with the top of the lower connecting ring 504, the cleaning scraper 505 is clockwise spiral, the cross section of the cleaning scraper 505 in the horizontal direction is parallelogram, when flood enters the flood discharge hopper 501, the cleaning scraper 505 can impact the cleaning scraper 505, the cleaning scraper 505 rotates under the action of impact force to push impurities on the outer wall of the filter screen 502 downwards for cleaning, the bottom of the upper connecting ring 506 is fixedly connected with the top of the cleaning scraper 505, the positioning bearing 507 is rotatably connected with the top of the filter screen 502 at the middle position, one end of the arc scraper 508 is fixedly connected with the outer wall of the positioning bearing 507, one end of the arc scraper 508 far away from the positioning bearing 507 is fixedly connected with the inner wall of the upper connecting ring 506, the flood discharge hopper 501, the filter screen 502, the trash box 503, the lower connecting ring 504, the cleaning scraper 505, the upper connecting ring 506, the positioning bearing 507 and the arc scraper 508 are arranged, flood can filter through filtering screen panel 502 before getting into siphon flood discharge device 4, get rid of aquatic bold impurity, flood can strike clean scraper blade 505 before flowing into flood discharge fill 501, clean scraper blade 505 receives the impact force and can rotate, clean scraper blade 505 discharges downwards to the inside of storing up miscellaneous case 503 through rotating the impurity that filters screen panel 502 outer wall and filter out, clean scraper blade 505 drives go up go-between 506 and rotates simultaneously, go up go-between 506 and drive arc scraper blade 508 and rotate, arc scraper blade 508 pushes away the impurity at filtering screen panel 502 top, thereby prevent to block up, the efficiency of flood discharge has been improved.
To sum up, the siphon drainage device for hydraulic engineering is provided with the flow accumulating pipeline 401, the pressurizing pipeline 402, the connecting frame 403, the pressure relief block 404 and the water inlet pipeline 405, wherein water flows into the flow accumulating pipeline 401 through the water inlet pipeline 405, the flow velocity of the water flow in the flow accumulating pipeline 401 is relatively low due to the transverse arrangement of the flow accumulating pipeline 401, when the water amount in the flow accumulating pipeline 401 gradually increases until reaching the overflowing state, the water in the flow accumulating pipeline 401 enters the pressurizing pipeline 402 in the overflowing state, the water flow entering the pressurizing pipeline 402 is accelerated to flow downwards under the action of gravity, meanwhile, the water flow close to the top of the pressurizing pipeline 402 gives the water flow suction force to the water flow in the flow accumulating pipeline 401, the flow velocity in the flow accumulating pipeline 401 is accelerated, the flood relief speed is accelerated, the pressure relief block 404 relieves the water flow when the water flow flows out in the pressurizing pipeline 402, and the water flow is dispersed outwards, thereby prevent that rivers impact force from too big damage flood discharge groove 2, the flood discharge in-process need not extra power to the inside velocity of flow of rivers of in-process pipeline is fast at the flood discharge, thereby prevents that the sediment of aquatic from leading to blockking up in the pipeline.
Simultaneously, the flood can filter through filtering screen panel 502 before getting into siphon flood discharge device 4, get rid of aquatic bold impurity, the flood can strike clean scraper blade 505 before flowing into flood discharge fill 501, clean scraper blade 505 receives the impact force and can rotate, clean scraper blade 505 discharges the inside to trash bin 503 downwards through rotating the impurity that filters screen panel 502 outer wall and filter out, clean scraper blade 505 drives go up go-between 506 and rotates simultaneously, go up go-between 506 and drive arc scraper blade 508 and rotate, arc scraper blade 508 pushes away the impurity at filtering screen panel 502 top, thereby prevent to block up, the efficiency of flood discharge has been improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a siphon drainage device for hydraulic engineering, includes flood control dam body (1), its characterized in that: the utility model discloses a flood control dam, including flood control dam body (1), installation boss (3), the inside of flood control dam body (1) is provided with siphon flood discharge device (4), the water inlet of siphon flood discharge device (4) is provided with filter equipment (5).
2. The siphon drainage device for hydraulic engineering according to claim 1, characterized in that: the siphon flood discharge device (4) comprises an overflow pipeline (401), a pressurizing pipeline (402), a connecting frame (403), a pressure relief block (404) and a water inlet pipeline (405), wherein the overflow pipeline (401) is fixedly connected inside a flood control dam body (1), the right end of the overflow pipeline (401) penetrates through the right side wall of the flood control dam body (1) and extends to the position above a flood discharge groove (2), the right end of the overflow pipeline (401) is fixedly connected with the top of the pressurizing pipeline (402), the bottom of the pressurizing pipeline (402) extends to the inside of the flood discharge groove (2), the bottom of the pressurizing pipeline (402) is fixedly connected with the top of the connecting frame (403), the bottom of the connecting frame (403) is fixedly connected with the pressure relief block (404), the water inlet pipeline (405) is fixedly connected with the left end of the overflow pipeline (401), one end, far away from the overflow pipeline (401), of the water inlet pipeline (405) upwards penetrates through an installation boss (3) and extends to the upper part of the installation boss (3), the water inlet pipeline (405) extends to one end of the upper portion of the mounting boss (3) and is fixedly connected with a filtering device (5).
3. A siphon drainage device for hydraulic engineering according to claim 2, characterized in that: the filtering device (5) comprises a flood discharge hopper (501), a filtering net cover (502), a trash storage box (503), a lower connecting ring (504), a cleaning scraper blade (505), an upper connecting ring (506), a positioning bearing (507) and an arc scraper blade (508), wherein the bottom of the flood discharge hopper (501) is fixedly connected with the top of a water inlet pipeline (405), the filtering net cover (502) is fixedly connected with the top of the flood discharge hopper (501), the bottom of the trash storage box (503) is fixedly connected with the outer wall of the water inlet pipeline (405) and is positioned close to the top, the bottom of the lower connecting ring (504) is rotatably connected with the top of the trash storage box (503) through a bearing, the cleaning scraper blade (505) is fixedly connected with the top of the lower connecting ring (504), the bottom of the upper connecting ring (506) is fixedly connected with the top of the cleaning scraper blade (505), the positioning bearing (507) is rotatably connected with the top of the filtering net cover (502) and is positioned in the middle position, one end of the arc-shaped scraper (508) is fixedly connected with the outer wall of the positioning bearing (507), and one end of the arc-shaped scraper (508) far away from the positioning bearing (507) is fixedly connected with the inner wall of the upper connecting ring (506).
4. A siphon drainage device for hydraulic engineering according to claim 2, characterized in that: the shape of the pressure relief block (404) is conical.
5. A siphon drainage device for hydraulic engineering according to claim 3, characterized in that: the cleaning blade (505) has a clockwise spiral shape, and the cleaning blade (505) has a cross-sectional shape in the horizontal direction that is a parallelogram.
6. A siphon drainage device for hydraulic engineering according to claim 3, characterized in that: the inner diameter of the lower connecting ring (504) is equal to that of the trash box (503), and the diameter of the flood discharge hopper (501) is smaller than that of the lower connecting ring (504).
7. A siphon drainage device for hydraulic engineering according to claim 3, characterized in that: the top of the flood discharge hopper (501) is fixedly connected with a vertical baffle.
8. A siphon drainage device for hydraulic engineering according to claim 2, characterized in that: the outer walls of the ponding pipeline (401) and the water inlet pipeline (405) inside the flood control dam body (1) are sleeved with an anti-corrosion protective sleeve.
CN202020749144.8U 2020-05-09 2020-05-09 Siphon drainage device for hydraulic engineering Withdrawn - After Issue CN212641391U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020749144.8U CN212641391U (en) 2020-05-09 2020-05-09 Siphon drainage device for hydraulic engineering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020749144.8U CN212641391U (en) 2020-05-09 2020-05-09 Siphon drainage device for hydraulic engineering

Publications (1)

Publication Number Publication Date
CN212641391U true CN212641391U (en) 2021-03-02

Family

ID=74791878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020749144.8U Withdrawn - After Issue CN212641391U (en) 2020-05-09 2020-05-09 Siphon drainage device for hydraulic engineering

Country Status (1)

Country Link
CN (1) CN212641391U (en)

Similar Documents

Publication Publication Date Title
CN207376460U (en) A kind of drainage arrangement of highway bridge
CN111501979B (en) Municipal drainage system
CN110725383B (en) Municipal sewage treatment system and sewage treatment method thereof
CN111424801B (en) A drainage device for municipal administration sewage is collected
CN212200241U (en) Diversion structure for hydraulic engineering
CN214034031U (en) Municipal administration pipeline mediation structure
CN210152092U (en) House building drainage structures
CN108643325B (en) Municipal drainage system
CN208472830U (en) A kind of hillside fields rainwater-collecting gravity irrigation device on the spot
CN212641391U (en) Siphon drainage device for hydraulic engineering
CN210078926U (en) Rain sewage filtering and precipitating device for river, lake, storehouse and sea sewage draining port
CN208136995U (en) A kind of desilting fluid-adjusting device for yellow river regulation
CN215860642U (en) Desilting and conveying device for oxidation pond of cattle farm
CN212772756U (en) Stifled cistern is prevented to hydraulic engineering
CN114197577A (en) Non-stop water dredging method for water supply pump station
CN211200302U (en) Reservoir is auxiliary assembly for scrubbing
CN110820699B (en) Scrubbing device is used to reservoir drain pipe department
CN208201937U (en) A kind of anti-clogging well lid
CN220908520U (en) River channel dredging device
CN212039138U (en) Domestic sewage sludge dewatering device
CN217759164U (en) Prevent rain sewage pipe for municipal works of jam
CN215388115U (en) A reposition of redundant personnel trash modification inspection shaft structure that blocks for sewage is upgraded and is increased efficiency
CN213038133U (en) Road drainage device for civil engineering
CN212612763U (en) Public building rainwater collecting system
CN111424777B (en) Urban road surface rainwater collecting system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220303

Address after: No.79 Jinshan Road, Yongfeng street, Guangfeng District, Shangrao City, Jiangxi Province

Patentee after: Jiangxi Mingkang Construction Engineering Co.,Ltd.

Address before: 050000 Hebei zhuotao Water Conservancy Engineering Group Co., Ltd

Patentee before: Xu Congcong

TR01 Transfer of patent right
AV01 Patent right actively abandoned

Granted publication date: 20210302

Effective date of abandoning: 20220507

AV01 Patent right actively abandoned

Granted publication date: 20210302

Effective date of abandoning: 20220507

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned