CN112252437A - Municipal garden drainage structures - Google Patents
Municipal garden drainage structures Download PDFInfo
- Publication number
- CN112252437A CN112252437A CN202011146037.7A CN202011146037A CN112252437A CN 112252437 A CN112252437 A CN 112252437A CN 202011146037 A CN202011146037 A CN 202011146037A CN 112252437 A CN112252437 A CN 112252437A
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- Prior art keywords
- drainage
- well lid
- fixedly connected
- block
- drainage structure
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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
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention discloses a municipal garden drainage structure which comprises a drainage structure pipe, a flowmeter, a drainage well cover and a drainage channel, wherein the top of the drainage structure pipe is fixedly connected with an installation block, the bottom of the flowmeter is fixedly connected with a connection block, the top of the installation block is provided with a connection groove, the bottom of the connection block is inserted into the connection groove, a cavity is arranged inside the installation block, the inner wall of the cavity is fixedly connected with a slide rod, the surface of the slide rod is slidably provided with a slide block, and the left inner wall of the cavity is rotatably connected with a threaded rod. This municipal garden drainage structures, the antiport rolling disc during dismantlement for first dead lever breaks away from first fixed slot, has reached convenient to detach's purpose, thereby has reached the effect of being convenient for maintain the flowmeter, cooperates second dead lever, second slide opening and second fixed slot, makes the installation of flowmeter more firm, prevents that rivers from influencing greatly and consolidating the effect.
Description
Technical Field
The invention relates to the technical field of garden drainage, in particular to a municipal garden drainage structure.
Background
Along with the development of tourism industry, artifical gardens are more and more popularized now, gardens drainage also more and more receives people's attention, most gardens all have drainage system at present, however in heavy rain weather, still have a large amount of ponding on the road surface in a lot of parks, seriously influence people's walking, it is because the outlet often is blockked up easily on the roadside irrigation canals and ditches to do it because of the reason, deposit such as leaf in the ditch of park road both sides is more, earth granule, little branches is piled up in outlet department, the filter screen mesh leads to the drainage not smooth after blockking up, thereby the rainwater can be gone to the road surface, seriously influence pedestrian's paradise, the walking.
There is a need for a municipal garden drainage structure designed to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a drainage structure for municipal gardens and parks, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a municipal garden drainage structure comprises a drainage structure pipe, a flowmeter, a drainage well cover and a drainage channel, wherein the top of the drainage structure pipe is fixedly connected with an installation block, the bottom of the flowmeter is fixedly connected with a connecting block, the top of the installation block is provided with a connecting groove, the bottom of the connecting block is inserted into the connecting groove, the inside of the installation block is provided with a cavity, the inner wall of the cavity is fixedly connected with a slide bar, the surface of the slide bar is slidably provided with a slide block, the left inner wall of the cavity is rotatably connected with a threaded rod, the right end of the threaded rod penetrates through the installation block and is connected with a rotating disc, the surface of the threaded rod is provided with a threaded block, the top of the threaded block is fixedly connected with the bottom of the slide block, the left side of the slide block is fixedly connected with a first fixing rod and a second fixing rod, first fixed slot and second fixed slot have been seted up on the right side of connecting block, the flowmeter is installed in drainage structure pipe surface, sewer locates the underground, and the drainage well lid is fixed in ground, drainage structure pipe installation and drainage well lid are gone up and rather than the intercommunication.
Preferably, a movable groove is formed in the right side of the rotating disc, a supporting block is fixedly connected to the bottom of the movable groove, and an annular rotating rod is fixedly connected to the right end of the supporting block.
Preferably, the both sides of drainage structure pipe are fixedly connected with first flange and second flange respectively, the left side threaded connection of first flange has first bi-pass sleeve pipe, and the right side threaded connection of second flange has second bi-pass sleeve pipe.
Preferably, the through-hole has all been seted up to the four corners department at drainage well lid top, the inside of through-hole is equipped with the screw, drainage well lid passes through the fix with screw in ground.
Preferably, the connecting hole has been seted up in the center department at drainage well lid top, and the spout has been seted up to the inner wall of connecting hole, the spread groove that communicates with the spout has all been seted up to the front end and the rear end at drainage well lid top, the telescopic hole with the spout intercommunication has all been seted up to the both sides at connecting hole top, drainage well lid includes the well lid body, and the well lid body is located the connecting hole, the equal fixedly connected with in both sides of well lid body holds the board, and holds the one end of board and extend to the inside of spout and be located the telescopic hole under, the bullet groove has been seted up at the top of holding the board, and the tank bottom fixedly connected with compression spring in bullet groove, compression spring's the spacing fender of one end fixedly connected with, and the flexible piece of one side fixedly connected with of spacing fender, the one end of flexible piece is worn out the bullet.
Preferably, the inner wall fixedly connected with high strength of connecting hole separates the net, and high strength separation net is located the below of well lid body.
Preferably, the movable groove has all been seted up to both sides around the well lid body top, and the tank bottom fixed mounting in movable groove has the movable block, the movable block has the handle through round pin axle movable mounting.
Preferably, the two sides of the top of the drainage well cover are both provided with grooves, and the bottom of each groove is fixedly provided with a fluorescent strip.
Preferably, the diameter of well lid body slightly is less than the diameter of connecting hole, and leaves the space between well lid body side and the connecting hole inner wall.
Preferably, the surface of the well lid body is provided with a drainage pore, and the diameter of the drainage pore is larger than that of the high-strength barrier net.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the municipal garden drainage structure, the rotary disc drives the threaded rod to rotate, the threaded rod drives the threaded block to move leftwards on the threaded rod, the threaded block drives the sliding block to slide leftwards on the sliding rod, and the sliding block drives the first fixing rod to move leftwards, so that the first fixing rod penetrates through the first sliding hole and is inserted into the first fixing groove, a flowmeter is installed, the operation is simple, and the purpose of convenience in installation is achieved;
(2) according to the municipal garden drainage structure, the rotating disc is reversely rotated during disassembly, so that the first fixing rod is separated from the first fixing groove, the purpose of convenience in disassembly is achieved, the effect of convenience in maintaining the flowmeter is achieved, the second fixing rod, the second sliding hole and the second fixing groove are matched, the flowmeter is more firmly installed, and the reinforcing effect is prevented from being influenced by overlarge water flow;
(3) according to the municipal garden drainage structure, the annular rotary rod is manually rotated, the rotary disc is convenient to rotate, the sealing performance of the drainage structure pipe is enhanced by arranging the first flange and the second flange, the drainage structure pipe is convenient to butt joint by matching the arranged first double-way sleeve and the second double-way sleeve, and the drainage structure pipe is convenient to adjust in opening and closing;
(4) this municipal garden drainage structures, carry the well lid body, place the inside at the spread groove with the bearing board, press flexible piece, flexible piece extrusion spacing fender, spacing fender extrusion compression spring, compression spring is compressed, make flexible piece shrink advance the inside of spout, rotate the well lid body, make flexible piece remove in the inside of spout, when flexible piece removes the position in flexible hole, compression spring resets, make the top of flexible piece wear out flexible hole and extend to the outside of drainage well lid, it is better swift to make it maintain and assemble drainage well lid, thereby conveniently clear up accumulations such as fallen leaves, and the modern design, and is safe in utilization, and the drainage effect that makes gardens is better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural cross-sectional view of the structural drainage well cover of the present invention;
FIG. 3 is an enlarged view of portion B of FIG. 2 in accordance with the present invention;
FIG. 4 is a top view of the structure of the drainage well cover of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
FIG. 6 is a structural cross-sectional view of a structural rotor disc of the present invention;
fig. 7 is a structural side view of the rotating disk of the present invention.
In the figure: 1. a drainage structure pipe; 2. a flow meter; 3. mounting blocks; 4. connecting blocks; 5. connecting grooves; 6. a cavity; 7. a slide bar; 8. a slider; 9. a threaded rod; 10. rotating the disc; 11. a thread block; 12. a first fixing lever; 13. a first slide hole; 14. a first fixing groove; 15. a second fixing bar; 16. a second slide hole; 17. a second fixing groove; 18. a movable groove; 19. supporting a block; 20. a circular rotating rod; 21. a first flange; 22. a second flange; 23. a first two-way cannula; 24. a second two-way cannula; 25. a water drainage channel; 26. a drainage well cover; 27. a well lid body; 28. a through hole; 29. a screw; 30. connecting holes; 31. a chute; 32. connecting grooves; 33. a telescopic hole; 34. a bearing plate; 35. a spring slot; 36. a compression spring; 37. a limiting gear; 38. a telescopic block; 39. a high strength barrier net; 40. a movable groove; 41. a movable block; 42. a pin shaft; 43. a handle; 44. a groove; 45. a fluorescent strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a municipal garden drainage structure comprises a drainage structure pipe 1, a flowmeter 2, a drainage well cover 26 and a drainage channel 25, wherein the top of the drainage structure pipe 1 is fixedly connected with an installation block 3, the bottom of the flowmeter 2 is fixedly connected with a connecting block 4, the top of the installation block 3 is provided with a connecting groove 5, the bottom of the connecting block 4 is inserted into the connecting groove 5, the interior of the installation block 3 is provided with a cavity 6, the inner wall of the cavity 6 is fixedly connected with a slide bar 7, the surface of the slide bar 7 is slidably provided with a slide block 8, the left inner wall of the cavity 6 is rotatably connected with a threaded rod 9, the right end of the threaded rod 9 penetrates through the installation block 3 and is connected with a rotating disc 10, the surface of the threaded rod 9 is threaded with a threaded block 11, the top of the threaded block 11 is fixedly connected with the bottom of the slide block 8, the left side of the slide block 8 is fixedly connected with a first fixing rod 12, first fixed slot 14 and second fixed slot 17 have been seted up on the right side of connecting block 4, and flowmeter 2 installs in drainage structure pipe 1 surface, and underground is located to sewer 25, and drainage well lid 26 is fixed in ground, on drainage structure pipe 1 installation and drainage well lid 26 and rather than the intercommunication.
A movable groove 18 is formed in the right side of the rotating disc 10, a supporting block 19 is fixedly connected to the bottom of the movable groove 18, and an annular rotating rod 20 is fixedly connected to the right end of the supporting block 19.
The both sides of drainage structure pipe 1 are fixedly connected with first flange 21 and second flange 22 respectively, and the left side threaded connection of first flange 21 has first two-way sleeve pipe 23, and the right side threaded connection of second flange 22 has second two-way sleeve pipe 24.
Through-hole 28 has all been seted up to the four corners department at drainage well lid 26 top, and the inside of through-hole 28 is equipped with screw 29, and drainage well lid 26 passes through screw 29 to be fixed in ground.
Connecting hole 30 has been seted up at the center department at drainage well lid 26 top, and spout 31 has been seted up to the inner wall of connecting hole 30, the spread groove 32 with spout 31 intercommunication is all seted up to the front end and the rear end at drainage well lid 26 top, the telescopic hole 33 with spout 31 intercommunication is all seted up to the both sides at connecting hole 30 top, drainage well lid 26 includes well lid body 27, and well lid body 27 is located connecting hole 30, the equal fixedly connected with holding plate 34 in both sides of well lid body 27, and the one end of holding plate 34 extends to the inside of spout 31 and is located telescopic hole 33 under, elastic groove 35 has been seted up at holding plate 34's top, and elastic groove 35's tank bottom fixedly connected with compression spring 36, compression spring 36's one end fixedly connected with spacing fender 37, and the flexible piece 38 of one side fixedly connected with of spacing fender 37, elastic groove 35 is worn out and is run through spout 31 and telescopic hole 33 to the one end of flexible piece.
The inner wall of the connecting hole 30 is fixedly connected with a high-strength barrier net 39, and the high-strength barrier net 39 is located below the well lid body 27.
Both sides at drainage well lid 26 top all are seted up flutedly 44, and the tank bottom fixed mounting of flutedly 44 has phosphor strip 45, makes it striking more, improves the security.
The diameter of well lid body 27 slightly is less than the diameter of connecting hole 30, and leaves the space between well lid body 27 side and the connecting hole 30 inner wall.
The drainage pore has been seted up on well lid body 27's surface, and the pore diameter ratio of drainage is big than the diameter that high strength separates net 39, and high strength separates net 39 not only plays the effect of isolated gardens fallen leaves, avoids the pedestrian to fall into sewer 25 moreover, makes its security better.
In summary, the following steps: according to the municipal garden drainage structure, the rotary disc 10 drives the threaded rod 9 to rotate, the threaded rod 9 drives the threaded block 11 to move leftwards on the threaded rod 9, the threaded block 11 drives the sliding block 8 to slide leftwards on the sliding rod 7, the sliding block 8 drives the first fixing rod 12 to move leftwards, so that the first fixing rod 12 penetrates through the first sliding hole 13 and is inserted into the first fixing groove 14, the flowmeter 2 is installed, the operation is simple, and the purpose of convenience in installation is achieved; when the flowmeter is disassembled, the rotating disc 10 is rotated reversely, so that the first fixing rod 12 is separated from the first fixing groove 14, the purpose of convenience in disassembly is achieved, the effect of convenience in maintaining the flowmeter 2 is achieved, and the second fixing rod 15, the second sliding hole 16 and the second fixing groove 17 are matched, so that the flowmeter 2 is assembled more firmly, and the reinforcing effect is prevented from being influenced by overlarge water flow; the annular rotating rod 20 is manually rotated to facilitate the rotation of the rotating disc 10, the sealing performance of the drainage structure pipe 1 is enhanced by arranging the first flange 21 and the second flange 22, and the drainage structure pipe 1 is conveniently butted and is conveniently opened and closed to be adjusted by matching the arranged first double-pass sleeve 23 and the second double-pass sleeve 24; carry and draw well lid body 27, place the inside at spread groove 32 with bearing board 34, press flexible piece 38, flexible piece 38 extrudees spacing fender 37, spacing fender 37 extrudees compression spring 36, compression spring 36 is compressed, make flexible piece 38 shrink into the inside of spout 31, rotate well lid body 27, make bullet 38 remove in the inside of spout 31, when flexible piece 38 removes the position of telescopic hole 33, compression spring 36 resets, make the top of flexible piece 38 wear out telescopic hole 33 and extend to the outside of drainage well lid 26, it is better swift to make it maintain and assemble drainage well lid 26, thereby conveniently clear up accumulations such as fallen leaves, the modern design, it is safe in utilization, make the drainage effect in gardens better.
The working principle is as follows: when using this municipal garden drainage structure, with each structure equipment good install in ground, 2 detectable discharge of flowmeter for gardens drainage flow is controllable, avoids appearing the unable emission of ponding, and rivers pass through drainage structure pipe 1 and get into drainage well lid 26, get into sewer 25 by well lid body 27 again, thereby make the ponding in gardens effectively discharge.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a municipal garden drainage structures, includes drainage structure pipe (1), flowmeter (2), drainage well lid (26) and sewer (25), its characterized in that: the drainage structure pipe comprises a drainage structure pipe (1), wherein the top of the drainage structure pipe (1) is fixedly connected with an installation block (3), the bottom of a flowmeter (2) is fixedly connected with a connecting block (4), the top of the installation block (3) is provided with a connecting groove (5), the bottom of the connecting block (4) is inserted into the connecting groove (5), the inside of the installation block (3) is provided with a cavity (6), the inner wall of the cavity (6) is fixedly connected with a sliding rod (7), the surface of the sliding rod (7) is slidably provided with a sliding block (8), the left inner wall of the cavity (6) is rotatably connected with a threaded rod (9), the right end of the threaded rod (9) penetrates through the installation block (3) and is connected with a rotating disc (10), the surface of the threaded rod (9) is provided with a threaded block (11), the top of the threaded block (11) is fixedly connected with the bottom of the sliding block (8), the left side of the, first slide opening (13) and second slide opening (16) have been seted up to the left inner wall of cavity (6), first fixed slot (14) and second fixed slot (17) have been seted up on the right side of connecting block (4), install in drainage structure pipe (1) surface flowmeter (2), underground is located in sewer (25), and drainage well lid (26) are fixed in ground, drainage structure pipe (1) installation and drainage well lid (26) are gone up and communicate with it.
2. The municipal garden drainage structure of claim 1, wherein: the right side of rolling disc (10) has seted up movable groove (18), the tank bottom fixedly connected with of movable groove (18) props up piece (19), the right-hand member fixedly connected with annular twitch pole (20) of propping up piece (19).
3. The municipal garden drainage structure of claim 1, wherein: the both sides of drainage structure pipe (1) are first flange (21) of fixedly connected with and second flange (22) respectively, the left side threaded connection of first flange (21) has first bi-pass sleeve pipe (23), and the right side threaded connection of second flange (22) has second bi-pass sleeve pipe (24).
4. The municipal garden drainage structure of claim 1, wherein: through-hole (28) have all been seted up to the four corners department at drainage well lid (26) top, the inside of through-hole (28)) is equipped with screw (29), drainage well lid (26) are fixed in ground through screw (29).
5. The municipal garden drainage structure of claim 1, wherein: the center of the top of the drainage well lid (26) is provided with a connecting hole (30), the inner wall of the connecting hole (30) is provided with a sliding groove (31), the front end and the rear end of the top of the drainage well lid (26) are provided with connecting grooves (32) communicated with the sliding groove (31), the two sides of the top of the connecting hole (30) are provided with telescopic holes (33) communicated with the sliding groove (31), the drainage well lid (26) comprises a well lid body (27), the well lid body (27) is positioned in the connecting hole (30), the two sides of the well lid body (27) are fixedly connected with bearing plates (34), one ends of the bearing plates (34) extend to the inside of the sliding groove (31) and are positioned under the telescopic holes (33), the top of the bearing plates (34) is provided with elastic grooves (35), the groove bottoms of the elastic grooves (35) are fixedly connected with compression springs (36), one ends of the compression springs (36) are fixedly connected with limiting blocks (37), and one side fixedly connected with flexible piece (38) of spacing fender (37), the one end of flexible piece (38) is worn out bullet groove (35) and is run through spout (31) and flexible hole (33).
6. The municipal garden drainage structure of claim 5, wherein: the inner wall fixedly connected with high strength of connecting hole (30) separates net (39), and high strength separates the below that net (39) is located well lid body (27).
7. The municipal garden drainage structure of claim 1, wherein: activity groove (40) have all been seted up to both sides around well lid body (27) top, and the tank bottom fixed mounting in activity groove (40) has movable block (41), movable block (41) have handle (43) through round pin axle (42) movable mounting.
8. The municipal garden drainage structure of claim 1, wherein: the both sides at drainage well lid (26) top all set up recess (44), and the tank bottom fixed mounting of recess (44) has phosphor strip (45).
9. The municipal garden drainage structure of claim 5, wherein: the diameter of well lid body (27) slightly is less than the diameter of connecting hole (30), and leaves the space between well lid body (27) side and connecting hole (30) inner wall.
10. The municipal garden drainage structure of claim 6, wherein: the surface of the well lid body (27) is provided with a drainage pore, and the diameter of the drainage pore is larger than that of the high-strength barrier net (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011146037.7A CN112252437A (en) | 2020-10-23 | 2020-10-23 | Municipal garden drainage structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011146037.7A CN112252437A (en) | 2020-10-23 | 2020-10-23 | Municipal garden drainage structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112252437A true CN112252437A (en) | 2021-01-22 |
Family
ID=74264979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011146037.7A Pending CN112252437A (en) | 2020-10-23 | 2020-10-23 | Municipal garden drainage structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112252437A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101345691B1 (en) * | 2013-07-25 | 2014-01-16 | 주식회사 마커스코리아 | The flux measurement equipment for a sewer pipe |
| EP3159661A1 (en) * | 2015-10-22 | 2017-04-26 | Rolls-Royce plc | Flow sensor system with self-adjusting rotatable shroud |
| CN207348103U (en) * | 2017-09-28 | 2018-05-11 | 广东清泉建设工程有限公司 | A kind of multilayer proofing municipal engineering manhole cover |
| CN210036860U (en) * | 2019-04-25 | 2020-02-07 | 成都三六八建设工程有限公司 | A flowmeter installation device for municipal drainage pipe |
| CN210713148U (en) * | 2019-09-05 | 2020-06-09 | 邢娜 | Municipal administration building drainage structures |
| CN210922740U (en) * | 2019-10-22 | 2020-07-03 | 河北智航信息技术有限公司 | Variable-diameter flowmeter convenient to connect and mount |
| CN111472428A (en) * | 2020-05-28 | 2020-07-31 | 江苏迈科道环境科技有限公司 | Make things convenient for flow control's flowmeter drainage adjusting device |
-
2020
- 2020-10-23 CN CN202011146037.7A patent/CN112252437A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101345691B1 (en) * | 2013-07-25 | 2014-01-16 | 주식회사 마커스코리아 | The flux measurement equipment for a sewer pipe |
| EP3159661A1 (en) * | 2015-10-22 | 2017-04-26 | Rolls-Royce plc | Flow sensor system with self-adjusting rotatable shroud |
| CN207348103U (en) * | 2017-09-28 | 2018-05-11 | 广东清泉建设工程有限公司 | A kind of multilayer proofing municipal engineering manhole cover |
| CN210036860U (en) * | 2019-04-25 | 2020-02-07 | 成都三六八建设工程有限公司 | A flowmeter installation device for municipal drainage pipe |
| CN210713148U (en) * | 2019-09-05 | 2020-06-09 | 邢娜 | Municipal administration building drainage structures |
| CN210922740U (en) * | 2019-10-22 | 2020-07-03 | 河北智航信息技术有限公司 | Variable-diameter flowmeter convenient to connect and mount |
| CN111472428A (en) * | 2020-05-28 | 2020-07-31 | 江苏迈科道环境科技有限公司 | Make things convenient for flow control's flowmeter drainage adjusting device |
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Application publication date: 20210122 |