CN212271187U - Drainage pumping station - Google Patents
Drainage pumping station Download PDFInfo
- Publication number
- CN212271187U CN212271187U CN202020730367.XU CN202020730367U CN212271187U CN 212271187 U CN212271187 U CN 212271187U CN 202020730367 U CN202020730367 U CN 202020730367U CN 212271187 U CN212271187 U CN 212271187U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- fixed
- rack
- pipe
- reservoir
- 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.)
- Active
Links
Images
Landscapes
- Sewage (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a drainage pump station, which relates to the technical field of hydraulic engineering and comprises a reservoir, wherein the top of the reservoir is provided with a rainwater pipe for collecting urban rainwater, one side of the reservoir is provided with a pump house for pumping away rainwater in the reservoir, a filter screen is arranged in the reservoir, and a cleaning device for cleaning the filter screen is arranged in the reservoir; the cleaning device comprises two fixed seats, a first scraper plate, a second scraper plate and a driving assembly, wherein the two fixed seats are fixed on the inner side wall of the impounding reservoir and are symmetrically arranged about a central axis in the length direction of the impounding reservoir; the first scraper is close to the upper part of the filter screen, and the second scraper is close to the lower part of the filter screen; the driving component is used for driving the first scraper blade and the second scraper blade to simultaneously move vertically along the height direction of the filter screen. The utility model discloses have the filter screen that can conveniently clear up in the cistern, effectively improve drainage efficiency's effect.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic engineering technique and specifically relates to a drainage pumping station is related to.
Background
At present, flood control and drainage planning is an important component of urban infrastructure engineering planning and design and is a guarantee for urban sustainable development, and flooding disasters are surface runoff formed by urban rainfall so as to form flooding loss caused by the fact that accumulated water cannot be drained in time; the flood disaster is caused by the water quantity increase of rivers, lakes and coastal waters, water level increase and flooding caused by water level rising and torrential flood outbreak due to strong rainfall, ice and snow melting, ice slush, dam burst, storm surge and the like. Along with the development of disaster prevention and reduction projects, water gate, dyke and waterlogging drainage pump station projects are built, so that the flood prevention and waterlogging drainage capability of cities is improved.
The prior Chinese utility model with the publication number of CN206916921U discloses a rainwater pump station for municipal construction engineering, which comprises a reservoir, a separation net, a stirring wheel, a motor, a water pumping pipe, a slope protection, a detection rod, a pump house, a water pump, a drain pipe, a dehumidifier and a radio transmitter, wherein a motor cabin is arranged below the stirring wheel, the stirring wheel is connected with the motor, the slope protection is built on the side surface of the reservoir, the detection rod is arranged on the side surface of the slope protection, the pump house is built on one side of the slope protection, the water pump is arranged in the pump house, the dehumidifier is arranged on the side surface in the pump house, when the rainwater is discharged, the rainwater is primarily filtered by the separation net, then the stirring wheel arranged below the water pumping pipe can disperse the accumulated sludge to facilitate the water pumping of the water pumping pipe, the pump room is provided with a dehumidifier, the service life of mechanical equipment in the pump room can be prolonged, and when the water level reaches a certain height, the power supply can be automatically switched on for drainage.
The above prior art solutions have the following drawbacks: after drainage pump station uses for a long time, because the rainwater all need filter through separating the net, most solid impurity can save and collect at separating the net, needs operating personnel to enter into inside when drainage pump station is out of work and clears up during the clearance, and the impurity of saving and collecting can lead to not smooth when the drainage, has reduced drainage efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drainage pumping station, it can conveniently clear up the filter screen in the cistern, effectively improves drainage efficiency.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a waterlogging drainage pump station comprises a reservoir, wherein a rainwater pipe for collecting urban rainwater is arranged at the top of the reservoir, a pump room for pumping away the rainwater in the reservoir is arranged on one side of the reservoir, a filter screen is arranged in the reservoir, and a cleaning device for cleaning the filter screen is arranged in the reservoir; the cleaning device comprises two fixed seats, a first scraper plate, a second scraper plate and a driving assembly, wherein the two fixed seats are fixed on the inner side wall of the water storage tank and are symmetrically arranged about a central axis in the length direction of the water storage tank; the first scraper is close to the upper part of the filter screen, and the second scraper is close to the lower part of the filter screen; the driving component is used for driving the first scraper blade and the second scraper blade to simultaneously vertically move along the height direction of the filter screen.
Through adopting above-mentioned technical scheme, rainwater in the city is concentrated and is got into in the rainwater pipe, flows into the cistern again, through the filtration of filter screen, purifies the rainwater for clean rainwater can be pumped in the pump house, alleviates the drainage problem. Through setting up cleaning device, can clear up the filter screen automatically, drive assembly can drive first scraper blade and second scraper blade and remove along the direction of height of filter screen simultaneously for first scraper blade and second scraper blade all remove to the position that is close to the filter screen middle part, clear up the filter screen fast, have improved cleaning efficiency, make impurity be difficult for blockking up the filter screen, guarantee the smooth and easy of drainage, improved the efficiency of drainage.
The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a gear rotatably arranged in the fixed seat, and a first rack and a second rack which are arranged in the fixed seat and meshed with the two sides of the gear; the water storage tank is provided with a motor connected with a gear; the gears in the two fixed seats are fixedly connected through a connecting rod which is horizontally arranged, and the axis of each gear is superposed with the axis of the connecting rod; the gear is positioned in the middle of the fixed seat; the opposite sides of the two fixed seats are provided with chutes arranged along the height direction of the fixed seats; connecting blocks penetrating through the sliding grooves are arranged on one sides of the first rack and the second rack; and the connecting blocks on the first rack and the second rack are respectively fixed with the first scraper and the second scraper.
Through adopting above-mentioned technical scheme, starter motor, drive gear clockwise turning, with gear engagement's first rack downstream, second rack upstream drives first scraper blade downstream, and second scraper blade upstream clears up the both sides of filter screen, and is high-efficient, and the back that finishes of clearance is through motor drive gear reverse rotation for first scraper blade and second scraper blade resume original position, are close to the upper and lower both ends of filter screen respectively.
The present invention may be further configured in a preferred embodiment as: dovetail strips are arranged on the sides, away from each other, of the first rack and the second rack; a dovetail groove matched with the dovetail strip is formed in the fixed seat; the dovetail groove extends along the height direction of the fixed seat.
Through adopting above-mentioned technical scheme, set up the dovetail in one side that first rack and second rack deviate from mutually, can mutually support with the dovetail, can guarantee that first rack and second rack can mesh with the gear all the time, and first scraper blade and second scraper blade can laminate with the filter screen all the time, play the effect of clearance.
The present invention may be further configured in a preferred embodiment as: a drainage pump and a sludge pump are arranged in the pump room; the drainage pump is communicated with the water storage tank through a water pipe; the sludge pump is communicated with the water storage tank through a sludge pipe; the height of the sludge pipe is lower than that of the water pipe.
Through adopting above-mentioned technical scheme, set up drain pump and sludge pump, through the ponding in the drain pump discharge cistern, the sludge pump takes out the silt of cistern bottom, can reduce the mud that the cistern bottom precipitated, avoids silt accumulation too many and leads to the drain pump to a large amount of mud and take place to block up.
The present invention may be further configured in a preferred embodiment as: the sludge pipe comprises a main pipe horizontally extending into the water storage tank and a branch pipe, one end of the branch pipe is communicated with the main pipe, and the other end of the branch pipe penetrates through the bottom of the filter screen; the sludge pipe is fixed at the bottom of the reservoir through a bracket.
Through adopting above-mentioned technical scheme, set up and be responsible for and the branch pipe, can get rid of the mud of filter screen both sides, the cleaning action is better, sets up the fixed sludge pipe of support, can make the sludge pipe installation stable.
The present invention may be further configured in a preferred embodiment as: the support comprises a support fixed at the bottom of the reservoir, a first half ring arranged above the support and a second half ring arranged above the first half ring; the opposite sides of the first half ring and the second half ring are attached to the circumferential direction of the sludge pipe, and mounting blocks are arranged at the end parts of the first half ring and the second half ring; and the connecting blocks of the first half ring and the second half ring are fixed through bolts.
Through adopting above-mentioned technical scheme, at first pass through the bottom of bolt fastening in the cistern with the support, erect the sludge pipe on first semi-ring again, locate the top of sludge pipe with the second semi-ring lid, fix the connecting block on first semi-ring and the second semi-ring through the bolt for the sludge pipe installation is reliable, when extracting mud through the sludge pump, is difficult for producing the vibration. The sludge pipe is long in length, and the bracket is arranged, so that the sludge in the sludge pipe can be smoothly pumped out.
The present invention may be further configured in a preferred embodiment as: and bases fixed with the bottom of the pump room are arranged at the bottoms of the drainage pump and the sludge pump.
Through adopting above-mentioned technical scheme, set up the base in the bottom of drain pump and sludge pump, and the difference in height of two bases, because drain pump and sludge pump set up in the bottom of the pool, the humidity of bottom of the pool is great, can lead to the motor to wet, influences the service function of pump, sets up the base and makes the motor be difficult for wetting, the use of protection motor.
The present invention may be further configured in a preferred embodiment as: and one side of the first scraper plate and the second scraper plate, which is attached to the filter screen, is provided with a brush.
Through adopting above-mentioned technical scheme, set up the brush, at the in-process that first scraper blade and second scraper blade go up and down, the brush can clear up the filter screen for some impurity of adhesion on the filter screen are struck off, have improved the stable filter capacity of filter screen, have improved the clearance effect to the filter screen.
To sum up, the utility model discloses following beneficial effect has:
1. rainwater in the city intensively enters the rainwater pipe and then flows into the water storage tank, and the rainwater is purified by filtering of the filter screen, so that clean rainwater can be pumped into the pump room, and the problem of drainage of stagnant water is relieved;
2. the dovetail strip and the dovetail groove are arranged, so that the first rack and the second rack can be always meshed with the gear, and the first scraper blade and the second scraper blade can be always attached to the filter screen to play a role in cleaning;
3. the sludge pipe is long in length, and the bracket is arranged, so that the sludge in the sludge pipe can be smoothly pumped out.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a schematic structural view of a cleaning apparatus according to an embodiment;
FIG. 3 is a schematic structural view of a first squeegee and a second squeegee of the embodiment;
FIG. 4 is an enlarged schematic view of portion A of FIG. 2;
FIG. 5 is a schematic view of the stent structure of the embodiment.
Reference numerals: 1. a reservoir; 11. a rain pipe; 2. a pump house; 21. draining pump; 22. a sludge pump; 23. a base; 24. a water pipe; 25. a sludge pipe; 251. a main pipe; 252. a branch pipe; 3. a filter screen; 4. a cleaning device; 41. a fixed seat; 411. a dovetail groove; 412. a chute; 42. a first squeegee; 43. a second squeegee; 44. a drive assembly; 441. a gear; 442. a first rack; 443. a second rack; 444. a dovetail strip; 445. a connecting rod; 446. connecting blocks; 45. a motor; 5. a support; 51. a support; 52. a first half ring; 53. a second half ring; 54. and (7) installing the block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a drainage pumping station, including cistern 1, the top intercommunication of cistern 1 has downspout 11 for collect urban rainwater. One side of the reservoir 1 is provided with a pump room 2 for pumping away the rainwater in the reservoir 1. A filter screen 3 is fixedly arranged in the reservoir 1. In order to clean the filter screen 3 conveniently, cleaning devices 4 are fixedly arranged in the water storage tank 1 and positioned at two sides of the filter screen 3.
Referring to fig. 1 and 2, the cleaning device 4 includes a fixing base 41, a first scraper 42, a second scraper 43, and a driving assembly 44.
Referring to fig. 1 and 2, two fixing seats 41 are provided, and both the two fixing seats 41 are fixed on the inner side wall of the water reservoir 1 and symmetrically arranged about the central axis of the water reservoir 1 in the length direction. Two sides of the filter screen 3 are fixed on the opposite sides of the two fixing seats 41.
Referring to fig. 2 and 3, the first scraper 42 and the second scraper 43 are respectively disposed on two sides of the filter screen 3 in the thickness direction and attached to the filter screen 3, and the first scraper 42 is close to the upper side of the filter screen 3, and the second scraper 43 is close to the lower side of the filter screen 3. The first scraper 42 and the second scraper 43 are provided with a brush for cleaning the filter screen 3 on one side of the filter screen 3, so that the cleaning effect on the filter screen 3 is improved.
Referring to fig. 2 and 4, a driving assembly 44 is installed in the fixing base 41 for driving the first scraper 42 and the second scraper 43 to simultaneously move vertically to a position in the middle of the filter screen, so as to clean impurities on both sides of the filter screen 3. The drive assembly 44 includes a gear 441, a first rack 442, and a second rack 443.
Referring to fig. 2 and 4, the gear 441 is rotatably disposed in the fixing base 41 and located at a middle position of the fixing base 41. The first and second racks 442 and 443 are slidably disposed along the height direction of the fixed base 41, and the first and second racks 442 and 443 are respectively engaged with both sides of the gear 441. Dovetail strips 444 are fixedly welded on the sides, away from each other, of the first rack 442 and the second rack 443, dovetail grooves 411 matched with the dovetail strips 444 are formed in the fixing seat 41, the dovetail grooves 411 extend in the height direction of the fixing seat 41, the moving directions of the first rack 442 and the second rack 443 can be limited, and therefore the first rack 442 and the second rack 443 can be meshed with the gear 441. The outer side of the water reservoir 1 is fixedly provided with a motor 45, and an output shaft of the motor 45 is fixedly connected with a gear 441 in the fixed seat 41 and used for driving the gear 441 to rotate. The gears 441 in the two fixed seats 41 are fixedly connected through a connecting rod 445 which is horizontally arranged, and the axis of the gear 441 is overlapped with the axis of the connecting rod 445. The opposite sides of the two fixing seats 41 are provided with sliding grooves 412 arranged along the height direction of the fixing seats 41, one sides of the first rack 442 and the second rack 443 are fixed with connecting blocks 446 penetrating through the sliding grooves 412, the connecting blocks 446 on the first rack 442 and the second rack 443 are respectively fixed with the first scraping plate 42 and the second scraping plate 43, and the filter screen 3 is cleaned through the vertical movement of the first rack 442 and the second rack 443 and the vertical movement of the first scraping plate 42 and the second scraping plate 43.
Referring to fig. 1, a drain pump 21 and a sludge pump 22 are fixedly installed in the pump room 2, and a base 23 is fixed to the bottom of the drain pump 21 and the bottom of the sludge pump 22. The drainage pump 21 is communicated with the water reservoir 1 through a water pipe 24, the sludge pump 22 is communicated with the water reservoir 1 through a sludge pipe 25, and the height of the sludge pipe 25 is lower than that of the water pipe 24.
Referring to fig. 1, a sludge pipe 25 is extended along the length direction of a water reservoir 1, and the sludge pipe 25 includes a main pipe 251 and a branch pipe 252. One end of the main pipe 251 is fixedly connected with an inlet of the sludge pipe 25, and the other end of the main pipe 251 extends into the storage tank. One end of the branch pipe 252 is communicated with the end of the main pipe 251, the other end of the branch pipe 252 horizontally penetrates through the filter screen 3, and the end of the branch pipe 252 penetrating through the filter screen 3 is bent downwards for sucking the sludge at the bottom of the reservoir 1.
Referring to fig. 1 and 5, a sludge pipe 25 is fixed to the bottom of the water reservoir 1 by a bracket 5. The two supports 5 are arranged along the length direction of the sludge pipe 25 at intervals, so that the sludge pipe 25 can be fixed more stably. The support 5 comprises a support 51, a first half-ring 52 and a second half-ring 53. The support 51 is fixed to the bottom of the water reservoir 1 by bolts. The first half ring 52 is fixed above the support 51, and the first half ring 52 is recessed downward and attached to the bottom of the sludge pipe 25. The second half ring 53 is provided above the first half ring 52 and attached to the upper side of the sludge pipe 25. The ends of the first half ring 52 and the second half ring 53 are formed with horizontally arranged mounting blocks 54, and the mounting blocks 54 on the first half ring 52 and the second half ring 53 are fixed by bolts.
The implementation principle of the embodiment is as follows: after the collected urban rainwater enters the water storage tank 1 from the rainwater pipe 11, impurities mixed in the rainwater are filtered through the filtering screen 3, so that the drainage pump 21 in the pump room 2 can extract clean rainwater. When the volume of impurity is too much, through starter motor 45, make motor 45 drive gear 441 rotate, first rack 442 and second rack 443 with gear 441 both sides meshing can be along the direction of height of filter screen 3 to the position removal of being close to the filter screen 3 middle part simultaneously, brush on first scraper blade 42 and the second scraper blade 43 clears up filter screen 3, make impurity can deposit the bottom of the pool of cistern 1, filter screen 3 can dredge, keep the unblocked of rivers, when the precipitate accumulates a certain amount, take away impurity through sludge pump 22, further clear up in the cistern 1.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a drainage pumping station, includes cistern (1), the top of cistern (1) is provided with rainwater pipe (11) that are used for collecting urban rainwater, and cistern (1) one side is provided with pump house (2) that are used for taking away rainwater in cistern (1), be provided with filter screen (3), its characterized in that in cistern (1): a cleaning device (4) for cleaning the filter screen (3) is arranged in the water storage tank (1); the cleaning device (4) comprises two fixed seats (41) which are fixed on the inner side wall of the water storage tank (1) and symmetrically arranged about the central axis of the length direction of the water storage tank (1), a first scraper blade (42) and a second scraper blade (43) which are attached to two sides of the thickness direction of the filter screen (3), and a driving assembly (44) arranged in the fixed seats (41); the first scraper (42) is close to the upper part of the filter screen (3), and the second scraper (43) is close to the lower part of the filter screen (3); the driving component (44) is used for driving the first scraper (42) and the second scraper (43) to simultaneously move vertically along the height direction of the filter screen (3).
2. The flood drainage pump station according to claim 1, characterized in that: the driving assembly (44) comprises a gear (441) rotatably arranged in the fixed seat (41), and a first rack (442) and a second rack (443) which are arranged in the fixed seat (41) and meshed with two sides of the gear (441); the water storage tank (1) is provided with a motor (45) connected with a gear (441); the gears (441) in the two fixed seats (41) are fixedly connected through a connecting rod (445) which is horizontally arranged, and the axis of the gear (441) is superposed with the axis of the connecting rod (445); the gear (441) is positioned in the middle of the fixed seat (41); one sides of the two fixed seats (41) opposite to each other are provided with sliding grooves (412) arranged along the height direction of the fixed seats (41); one sides of the first rack (442) and the second rack (443) are provided with connecting blocks (446) which penetrate through the sliding grooves (412); the connecting blocks (446) on the first rack (442) and the second rack (443) are respectively fixed with the first scraper blade (42) and the second scraper blade (43).
3. The flood drainage pump station according to claim 2, characterized in that: dovetail strips (444) are arranged on the sides, facing away from each other, of the first rack (442) and the second rack (443); a dovetail groove (411) matched with the dovetail strip (444) is formed in the fixed seat (41); the dovetail groove (411) extends along the height direction of the fixed seat (41).
4. The flood drainage pump station according to claim 1, characterized in that: a drainage pump (21) and a sludge pump (22) are arranged in the pump room (2); the drainage pump (21) is communicated with the water reservoir (1) through a water pipe (24); the sludge pump (22) is communicated with the water reservoir (1) through a sludge pipe (25); the height of the sludge pipe (25) is lower than that of the water pipe (24).
5. The flood drainage pump station according to claim 4, wherein: the sludge pipe (25) comprises a main pipe (251) horizontally extending into the water storage tank (1) and a branch pipe (252) with one end communicated with the main pipe (251) and the other end penetrating through the bottom of the filter screen (3); the sludge pipe (25) is fixed at the bottom of the water storage tank (1) through a bracket (5).
6. The flood drainage pump station according to claim 5, wherein: the support (5) comprises a support (51) fixed at the bottom of the reservoir (1), a first half ring (52) arranged above the support (51) and a second half ring (53) arranged above the first half ring (52); one opposite side of the first half ring (52) and the second half ring (53) is attached to the circumferential direction of the sludge pipe, and the end parts of the first half ring (52) and the second half ring (53) are provided with mounting blocks (54); the connecting blocks (446) of the first half ring (52) and the second half ring (53) are fixed through bolts.
7. The flood drainage pump station according to claim 4, wherein: and a base (23) fixed with the bottom of the pump room (2) is arranged at the bottom of the drainage pump (21) and the sludge pump (22).
8. The flood drainage pump station according to claim 1, characterized in that: and one sides of the first scraper blade (42) and the second scraper blade (43) which are attached to the filter screen (3) are provided with hairbrushes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020730367.XU CN212271187U (en) | 2020-05-06 | 2020-05-06 | Drainage pumping station |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020730367.XU CN212271187U (en) | 2020-05-06 | 2020-05-06 | Drainage pumping station |
Publications (1)
Publication Number | Publication Date |
---|---|
CN212271187U true CN212271187U (en) | 2021-01-01 |
Family
ID=73885857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202020730367.XU Active CN212271187U (en) | 2020-05-06 | 2020-05-06 | Drainage pumping station |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN212271187U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115350513A (en) * | 2022-08-24 | 2022-11-18 | 安徽惠农建设集团有限公司 | Hydraulic engineering filter equipment |
-
2020
- 2020-05-06 CN CN202020730367.XU patent/CN212271187U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115350513A (en) * | 2022-08-24 | 2022-11-18 | 安徽惠农建设集团有限公司 | Hydraulic engineering filter equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN215563225U (en) | Municipal works are with having well lid of preventing blockking up function | |
CN110984351A (en) | Automatic diverging device of initial stage rainwater | |
CN113026913A (en) | Municipal road drainage system for sponge city | |
CN212271187U (en) | Drainage pumping station | |
CN117846106B (en) | Drainage system for relieving accumulated water of municipal roads and operation method | |
CN111001222A (en) | Construction site rain and sewage recycling system and using method thereof | |
CN214302102U (en) | Town road drainage structures | |
CN110180255A (en) | A kind of wastewater recycling system | |
CN210737273U (en) | Town road drainage structures | |
CN213805773U (en) | Water collecting device of residential area sponge facility | |
CN206233346U (en) | A kind of road surface drainage structure | |
CN217430907U (en) | Novel rainwater sewage reposition of redundant personnel device | |
CN211973750U (en) | Sponge urban rainwater pipeline system | |
CN212742743U (en) | Rainwater recovery processing system is used in sponge city | |
CN212714507U (en) | Convenient drainage device for urban viaduct | |
CN213709785U (en) | Drainage structure for municipal garden | |
CN210288629U (en) | Underground garage drainage system | |
CN112031169A (en) | Assembled box type house with rainwater collecting function | |
CN217759156U (en) | Drainage structure with anti-floating, anti-seepage and filtering functions | |
CN218580394U (en) | Sponge city drainage design structure | |
CN214997811U (en) | Drainage device for civil engineering tunnel | |
CN219157728U (en) | Drainage structure | |
CN221298107U (en) | Dyke drainage structures of hydraulic engineering | |
CN216130037U (en) | Portable urban road ponding is with drainage flood device | |
CN220142830U (en) | BIM assembled effluent water sump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |