CN115025538A - Engineering road rainwater drainage collection device for bridge building - Google Patents
Engineering road rainwater drainage collection device for bridge building Download PDFInfo
- Publication number
- CN115025538A CN115025538A CN202210705589.XA CN202210705589A CN115025538A CN 115025538 A CN115025538 A CN 115025538A CN 202210705589 A CN202210705589 A CN 202210705589A CN 115025538 A CN115025538 A CN 115025538A
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- Prior art keywords
- box body
- fixedly connected
- filter
- plate
- rainwater drainage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 8
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 239000012535 impurity Substances 0.000 abstract description 21
- 239000011435 rock Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sewage (AREA)
Abstract
The invention relates to the technical field of constructional engineering, and discloses a rainwater drainage collecting device for a bridge construction engineering road, which comprises a box body, wherein a filtering device is arranged in the box body, communicating pipes are fixedly connected to the left end and the right end of the box body, circulating grooves are formed in the left end and the right end of the box body, and the two communicating pipes are respectively communicated with the interior of the box body through the two circulating grooves; according to the invention, through arranging the filter plate, after accumulated water flows into the box body from the filter plate, the accumulated water entering the box body falls on the surface of the collection plate along the guide plate or directly along the guide plate, and the accumulated water drives impurities which are not filtered by the filter plate to slide down to the inside of the collection frame along the collection plate for collection, so that the condition that the impurities flow out along the circulation groove to block the communication pipe can be avoided.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a rainwater drainage collecting device for an engineering road for bridge construction.
Background
The bridge construction refers to the construction of a bridge approach and a diversion building. The river beach embankment part of the bridgehead approach is filled with soil with strong water permeability, and is protected by masonry to prevent scouring. The diversion building is mostly built on the spot in dry seasons by using firewood, gabions, masonry or concrete and the like according to design, the road is an extremely important link, water accumulation often occurs in rainy days, and once the rain is heavy, the road is accumulated with water, so that urban traffic jam occurs.
Engineering road rainwater drainage collection device for bridge building of prior art when using, thereby impurity after not being filtered falls into the device and can pile up gradually after inside and cause the jam to collection device, and comparatively troublesome to collection device clearance after blockking up, so we have provided an engineering road rainwater drainage collection device for bridge building.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a rainwater drainage collecting device for a bridge construction engineering road, which aims to solve the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a rainwater drainage collecting device for bridge construction engineering roads comprises a box body, wherein a filtering device is arranged inside the box body, the left end and the right end of the box body are fixedly connected with communicating pipes, circulating grooves are formed in the left end and the right end of the box body, and the two communicating pipes are respectively communicated with the inside of the box body through the two circulating grooves;
the filter equipment includes the filter, the equal fixedly connected with in filter bottom both ends collects the frame, two collect the equal fixedly connected with filter screen in the positive and negative both ends of frame, two collect the equal fixedly connected with guide plate in frame surface, the filter bottom is provided with collects the mechanism.
Preferably, the filter plate cover is located same horizontal plane above the box body and at the top of the filter plate and the top of the box body, two one ends of the collection frames, which are far away from each other, are all contacted with the inner wall of the box body, and one ends of the two collection frames, which are far away from the two guide plates respectively, are arranged in a downward inclined manner.
Preferably, the collecting mechanism comprises two vertical plates, the tops of the vertical plates are fixedly connected with the bottom of the filter plate, the vertical plates are provided with shaking pieces close to each other, a collecting plate is arranged above the shaking pieces and is in an upward-tilting arc shape, two grooves are formed in the left end and the right end of the collecting plate, and a connecting film is fixedly connected with the two groove walls of the grooves.
Preferably, two equal fixedly connected with link in riser bottom, two the link is the arc setting, and two the link all with box body inner wall contact, two fluting one has all been seted up on the link surface.
Preferably, the two connecting frames are respectively arranged inside the two collecting frames, and one groove wall of each of the four grooves is in surface contact with the four filter screens.
Preferably, the swinging piece comprises a supporting rod, two deflection plates are sleeved at the middle shaft of the supporting rod, the tail ends of the two deflection plates are arranged in an upward bent shape, two leakage grooves II are formed in the tail ends of the two deflection plates, and elastic plates are fixedly connected to the groove walls of the two leakage grooves.
Preferably, the top of the support rod is fixedly connected with the bottom of the filter plate, the bottom of the support rod is fixedly connected with the surface of the collecting plate, and the front end and the back end of the support rod are provided with a first leakage groove.
Preferably, the top parts of the two deflection plates are fixedly connected with the bottom parts of the two connecting films respectively.
Compared with the prior art, the invention provides a rainwater drainage collecting device for a bridge construction engineering road, which has the following beneficial effects:
1. according to the invention, through the arrangement of the filter plate, after accumulated water flows into the box body from the filter plate, the accumulated water entering the box body falls on the surface of the collecting plate along the guide plate or directly, and the accumulated water drives impurities which are not filtered by the filter plate to slide down to the inside of the collecting frame along the collecting plate for collection, so that the condition that the communicating pipe is blocked due to the fact that the impurities flow out along the circulation groove can be avoided.
2. According to the invention, the collecting plate is arranged, so that impurities in accumulated water can well slide down to the inside of the collecting frame along the collecting plate, and the connecting film is arranged on the inner wall of the second opening groove formed in the collecting plate, so that the accumulated water drives the connecting film to shake after falling to impact the collecting plate, and the impurities can be more effectively separated from the collecting plate.
3. According to the invention, the deflection plate is arranged at the bottom of the collecting plate, so that the connecting film is better driven to rock by the deflection plate when the collecting plate rocks, and meanwhile, the connecting film can be better driven to rock under the assistance of the elastic plates arranged at the tail end of the deflection plate and the inner part of the leakage groove II arranged at the tail end of the deflection plate when accumulated water flows down, so that the impurity treatment effect on the surface of the collecting plate is better.
4. According to the invention, the connecting frames are arranged at the front end and the back end of the collecting plate, so that accumulated water sliding down along the front end and the back end of the inner wall of the box body can fall in the connecting frames, and the accumulated water in the connecting frames slides to the collecting frames along the connecting frames to be collected, thereby ensuring that impurities in the accumulated water are collected comprehensively.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the filter device of the present invention;
FIG. 4 is a schematic view of the collection mechanism of the present invention;
FIG. 5 is a perspective view of a collection plate of the present invention;
FIG. 6 is a schematic structural view of the shaking member of the present invention;
FIG. 7 is an enlarged view of A of FIG. 6 according to the present invention.
In the figure: the filter comprises a box body 1, a communicating pipe 2, a filter device 3, a filter plate 31, a collecting mechanism 32, a vertical plate 321, a first groove 322, a shaking piece 323, a support rod 3231, a first leakage groove 3232, a deflection plate 3233, a second leakage groove 3234, an elastic plate 3235, a collecting plate 324, a connecting frame 325, a second groove 326, a connecting film 327, a collecting frame 33, a filter screen 34, a guide plate 35 and a flow groove 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-7, the present invention provides a technical solution: a rainwater drainage collecting device for bridge construction engineering roads comprises a box body 1, wherein a filtering device 3 is arranged inside the box body 1, the left end and the right end of the box body 1 are fixedly connected with communicating pipes 2, circulation grooves 4 are formed in the left end and the right end of the box body 1, and the two communicating pipes 2 are respectively communicated with the inside of the box body 1 through the two circulation grooves 4; the filtering device 3 comprises a filtering plate 31, both ends of the bottom of the filtering plate 31 are fixedly connected with collecting frames 33, both ends of the positive and negative sides of the two collecting frames 33 are fixedly connected with filtering nets 34, both surfaces of the two collecting frames 33 are fixedly connected with guide plates 35, the bottom of the filtering plate 31 is provided with a collecting mechanism 32, the filtering plate 31 covers the box body 1, the top of the filtering plate 31 and the top of the box body 1 are positioned on the same horizontal plane, the mutually far ends of the two collecting frames 33 are contacted with the inner wall of the box body 1, the ends of the two guide plates 35 respectively far away from the two collecting frames 33 are downward inclined, by arranging the filtering plate 31, after accumulated water flows from the filtering plate 31 to the inside of the box body 1, the accumulated water entering the box body 1 falls on the surface of the collecting plate 324 along the guide plates 35 or directly, the accumulated water drives impurities which are not filtered by the filtering plate 31 to slide down to the inside of the collecting frames 33 along the collecting plate 324 for collection, thereby avoiding the situation that the communicating pipe 2 is blocked due to the impurities flowing out along the circulating groove 4.
The collecting mechanism 32 comprises two vertical plates 321, the tops of the two vertical plates 321 are fixedly connected with the bottoms of the filter plates 31, one ends of the two vertical plates 321, which are close to each other, are provided with shaking pieces 323, a collecting plate 324 is arranged above the shaking pieces 323, the collecting plate 324 is arranged in an upward-tilting arc shape, two open grooves 326 are formed in the left end and the right end of the collecting plate 324, the groove walls of the two open grooves 326 are fixedly connected with connecting films 327, through arranging the collecting plate 324, impurities in accumulated water can be guaranteed to slide down to the inside of the collecting frame 33 along the collecting plate 324, then the connecting films 327 are arranged on the inner walls of the two open grooves 326 arranged in the collecting plate 324, the accumulated water drives the connecting films to shake after impacting the collecting plate 324, so that the impurities can be more effectively separated from the collecting plate 324, the bottoms of the two vertical plates 321 are fixedly connected with connecting frames 325, and the two connecting frames 325 are arranged in an arc shape, and two link 325 all with 1 inner wall contact of box body, two first 322 fluting have all been seted up on two link 325 surfaces, two link 325 set up respectively inside two collection framves 33, and four first 322 cell walls of fluting respectively with four filter screens 34 surface contact, set up link 325 through the positive and negative both ends at collection board 324, can make the ponding that slides down along 1 inner wall positive and negative both ends of box body inside can fall inside link 325, the ponding that is located link 325 inside slides to collection frame 33 inside along link 325 and advances to collect, thereby guarantee comparatively comprehensive to the collection of impurity in the ponding.
The shaking piece 323 comprises a supporting rod 3231, two deflecting plates 3233 are sleeved at the central axis of the supporting rod 3231, the tail ends of the two deflecting plates 3233 are arranged in an upward bent shape, the tail ends of the two deflecting plates 3233 are respectively provided with a second leaking groove 3234, the groove walls of the second leaking grooves 3234 are respectively and fixedly connected with an elastic plate 3235, the top of the supporting rod 3231 is fixedly connected with the bottom of the filtering plate 31, the bottom of the supporting rod 3231 is fixedly connected with the surface of the collecting plate 324, the front end and the back end of the supporting rod 3231 are respectively provided with a first leaking groove 3232, the top of the two deflecting plates 3233 are respectively and fixedly connected with the bottoms of the two connecting films 327, by arranging the deflecting plate 3233 at the bottom of the collecting plate 324, the collecting plate 324 can better drive the connecting film 327 to swing through the deflecting plate 3233 when swinging, meanwhile, when the accumulated water flows down, the accumulated water can better drive the connecting film 327 to rock with the aid of the elastic plate 3235 arranged at the tail end of the deflecting plate 3233 and the inner part of the drain groove 3234 arranged at the tail end, so that the impurity treatment effect on the surface of the collecting plate 324 is better.
When the collecting device is used, accumulated water flows from the filter plate 31 to the inside of the box body 1, the accumulated water entering the box body 1 falls on the surface of the collecting plate 324 along the guide plate 35 or directly, the accumulated water drives impurities which are not filtered by the filter plate 31 to slide down to the inside of the collecting frame 33 along the collecting plate 324 to be collected, so that the situation that the impurities block the communicating pipe 2 due to flowing out along the flow groove 4 can be avoided, meanwhile, the impurities in the accumulated water can be ensured to slide down to the inside of the collecting frame 33 along the collecting plate 324 through the arc-shaped arrangement of the bending of the collecting plate 324, the connecting film 327 is arranged on the inner wall of the slotted second 326 arranged in the collecting plate 324, the accumulated water drives the connecting film 327 to shake after falling and impacting the collecting plate 324, so that the impurities can be separated from the collecting plate 324 more effectively, the deflecting plate 3233 is arranged at the bottom of the collecting plate 324, and the collecting plate 324 is enabled to drive the deflecting connecting film 327 to shake better through the deflecting plate 3233 when shaking, simultaneously also can make when ponding flows down with the terminal and terminal elastic plate 3235's that sets up of the inside draw-off groove 3234 of seting up of deflector 3233 supplementary lower better drive connection membrane 327 rocks, it is better to the impurity treatment effect on collecting plate 324 surface to make, the rethread sets up link 325 at the tow ends of collecting plate 324, can make the ponding of gliding along the tow ends of box body 1 inner wall can drop inside link 325, the ponding that is located link 325 inside slides to collecting frame 33 along link 325 and advances to collect, thereby guarantee that the collection to impurity in the ponding is comparatively comprehensive.
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 bridge is engineering road rainwater drainage collection device for building, includes box body (1), its characterized in that: a filtering device (3) is arranged inside the box body (1), the left end and the right end of the box body (1) are fixedly connected with communicating pipes (2), circulation grooves (4) are formed in the left end and the right end of the box body (1), and the two communicating pipes (2) are respectively communicated with the inside of the box body (1) through the two circulation grooves (4);
filter equipment (3) are including filter (31), filter (31) bottom both ends equal fixedly connected with collects frame (33), two collect equal fixedly connected with filter screen (34) in frame (33) tow ends, two collect equal fixedly connected with guide plate (35) in frame (33) surface, filter (31) bottom is provided with collects mechanism (32).
2. The bridge construction engineering road rainwater drainage collection device of claim 1, characterized in that: filter (31) lid is located same horizontal plane, two above box body (1) and filter (31) top and box body (1) top collect the one end that frame (33) kept away from each other and all contact with box body (1) inner wall, and the one end that two collection framves (33) were kept away from respectively in two guide plates (35) is decurrent slope form setting.
3. The bridge construction engineering road rainwater drainage collection device of claim 2, characterized in that: collect mechanism (32) and include two risers (321), two riser (321) top all with filter (31) bottom fixed connection, two the one end that riser (321) are close to each other is provided with shakes and moves piece (323), shake and be provided with collecting plate (324) top, collecting plate (324) are the arc setting of upwards perk, two fluting two (326) have all been seted up at both ends about collecting plate (324), two equal fixedly connected with of fluting two (326) cell wall connects membrane (327).
4. The bridge construction engineering road rainwater drainage collection device of claim 3, characterized in that: two equal fixedly connected with link (325), two in riser (321) bottom link (325) are the arc setting, and two link (325) all with box body (1) inner wall contact, two fluting one (322) has all been seted up on link (325) surface.
5. The bridge construction engineering road rainwater drainage collection device of claim 4, characterized in that: the two connecting frames (325) are respectively arranged in the two collecting frames (33), and the groove walls of the four first grooves (322) are respectively in surface contact with the four filter screens (34).
6. The bridge construction engineering road rainwater drainage collection device of claim 3, characterized in that: the shaking piece (323) comprises a support rod (3231), two deflection plates (3233) are sleeved at the middle shaft of the support rod (3231), the tail ends of the two deflection plates (3233) are arranged in an upward bent mode, two leakage grooves II (3234) are formed in the tail ends of the two deflection plates (3233), and elastic plates (3235) are fixedly connected to the groove walls of the two leakage grooves II (3234).
7. The bridge construction engineering road rainwater drainage collection device of claim 6, characterized in that: the top of the support rod (3231) is fixedly connected with the bottom of the filter plate (31), the bottom of the support rod (3231) is fixedly connected with the surface of the collecting plate (324), and the front end and the back end of the support rod (3231) are provided with a first leakage groove (3232).
8. The bridge construction engineering road rainwater drainage collection device of claim 6, characterized in that: the tops of the two deflection plates (3233) are fixedly connected with the bottoms of the two connecting films (327) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705589.XA CN115025538A (en) | 2022-06-21 | 2022-06-21 | Engineering road rainwater drainage collection device for bridge building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705589.XA CN115025538A (en) | 2022-06-21 | 2022-06-21 | Engineering road rainwater drainage collection device for bridge building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115025538A true CN115025538A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210705589.XA Pending CN115025538A (en) | 2022-06-21 | 2022-06-21 | Engineering road rainwater drainage collection device for bridge building |
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| Country | Link |
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| CN (1) | CN115025538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803051A (en) * | 2024-02-29 | 2024-04-02 | 正元能源集团有限公司 | Drainage equipment for building engineering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209144970U (en) * | 2018-09-21 | 2019-07-23 | 苏州安省建筑设计有限公司 | A kind of rainwater gutter with filtering function |
| CN209741657U (en) * | 2019-02-27 | 2019-12-06 | 隋圣义 | Drainage device for building bridge |
| CN215654043U (en) * | 2021-07-27 | 2022-01-28 | 广东万泉建筑科技有限公司 | Novel district road drainage filters device |
-
2022
- 2022-06-21 CN CN202210705589.XA patent/CN115025538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209144970U (en) * | 2018-09-21 | 2019-07-23 | 苏州安省建筑设计有限公司 | A kind of rainwater gutter with filtering function |
| CN209741657U (en) * | 2019-02-27 | 2019-12-06 | 隋圣义 | Drainage device for building bridge |
| CN215654043U (en) * | 2021-07-27 | 2022-01-28 | 广东万泉建筑科技有限公司 | Novel district road drainage filters device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803051A (en) * | 2024-02-29 | 2024-04-02 | 正元能源集团有限公司 | Drainage equipment for building engineering |
| CN117803051B (en) * | 2024-02-29 | 2024-05-17 | 正元能源集团有限公司 | Drainage equipment for building engineering |
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