CN111851592A - Can be according to municipal sewage well lid of displacement automatically regulated outlet size - Google Patents
Can be according to municipal sewage well lid of displacement automatically regulated outlet size Download PDFInfo
- Publication number
- CN111851592A CN111851592A CN202010792178.XA CN202010792178A CN111851592A CN 111851592 A CN111851592 A CN 111851592A CN 202010792178 A CN202010792178 A CN 202010792178A CN 111851592 A CN111851592 A CN 111851592A
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- Prior art keywords
- fixed mounting
- well lid
- arc
- well cover
- size
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- 239000010865 sewage Substances 0.000 title claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 title claims description 6
- 230000001105 regulatory effect Effects 0.000 title claims description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 10
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 208000036828 Device occlusion Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- 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
- E03F2005/068—Gully gratings with means for enhancing water flow
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a municipal sewage well lid capable of automatically adjusting the size of a water outlet according to the water discharge, and particularly relates to the technical field of municipal engineering. A municipal sewage well cover capable of automatically adjusting the size of a water outlet according to the water discharge amount comprises a well cover base, a double-hole well cover, a filter screen plate, a supporting plate, a water outlet opening and closing mechanism and the like; the double-hole well cover with the large round hole and the two small round holes is movably arranged on the well cover base, and the filter screen plate is fixedly arranged in the large round hole of the double-hole well cover. The water outlet opening and closing mechanism and the stretching mechanism can drive the rotating disc to rotate through the floating of the rubber floating body so that the equilateral baffle plate slides, and water outlet openings with different sizes are formed according to the rotating angle, so that the size of the water outlet can be automatically adjusted according to the water discharge.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a municipal sewage well lid capable of automatically adjusting the size of a water outlet according to the water discharge.
Background
Municipal administration sewage well lid is municipal administration sewage discharge system's an important device, and it enables the rainwater through then flow in underground drainage pipe, but general well lid has fixed wash port and less, can not in time with the drainage pipe underground when rainstorm comes, easily leads to the waterlogging, and ponding is more, influences citizen's trip, influences the civilization degree in city, and the well lid outlet is blockked up by rubbish easily moreover, causes the problem that can not in time drain.
Disclosure of Invention
The invention aims to provide a municipal sewage well cover which can filter garbage and is convenient to clean and maintain, and the size of a water outlet can be automatically adjusted according to the water discharge amount, so that the problems that a common well cover is provided with a fixed water discharge hole and is small, water cannot be discharged underground in time when rainstorm comes, waterlogging is easily caused, more water is accumulated, and the traveling of citizens is influenced are solved.
The technical scheme is as follows: the utility model provides a can be according to municipal administration sewage well lid of displacement automatically regulated outlet size, including well lid base, diplopore well lid, filter plate, backup pad, outlet mechanism, canceling release mechanical system and tension mechanism that opens and shuts, it installs on the well lid base movably to open the diplopore well lid that has a big round hole and two little round holes, filter plate fixed mounting is in the big round hole of diplopore well lid, two backup pad fixed mounting is in diplopore well lid one side, outlet mechanism fixed mounting that opens and shuts is in the backup pad, reset mechanism fixed mounting just opens and shuts the mechanism with the outlet and is connected in the backup pad, tension mechanism fixed mounting is in outlet mechanism one side that opens and shuts.
In a preferred embodiment of the invention, the water outlet opening and closing mechanism comprises a six-sided trough plate, equilateral baffles, push rods and a rotating disc, wherein the six-sided trough plate is fixedly arranged on one side of the two supporting plates, a hexagonal groove is formed in the upper side surface of the six-sided trough plate, a plurality of the equilateral baffles are slidably arranged in the grooves of the six-sided trough plate, the push rods are fixedly arranged on one side surface of the six-sided trough plate, the rotating disc provided with a plurality of slotted holes is slidably arranged on the outer side of the six-sided trough plate, and the push rods are movably positioned in the slotted holes.
In a preferred embodiment of the invention, the reset mechanism comprises an arc-shaped cavity plate, an arc-shaped connecting strip and an arc-shaped spring, the arc-shaped cavity plate is fixedly arranged on the supporting plate and is contacted with one side of the rotating disk, the arc-shaped connecting strip is fixedly arranged on the rotating disk, one end of the arc-shaped connecting strip extends into the arc-shaped cavity plate and is connected with the arc-shaped cavity plate in a sliding manner, one end of the arc-shaped spring is fixedly arranged on the arc-shaped connecting strip, the other end of the arc-shaped spring is fixedly arranged on the arc-shaped.
In a preferred embodiment of the invention, the stretching mechanism comprises a mounting vertical plate, a rotating handle, a rubber floating body, a limit baffle, a first connecting rod, a steel wire and a second connecting rod, wherein the mounting vertical plate is fixedly arranged at one side of the supporting plate, the rotating handle is rotatably arranged at one end of the mounting vertical plate, the rubber floating body is fixedly arranged at one end of the rotating handle, the limit baffle is fixedly arranged at one end of the mounting vertical plate and positioned below the rotating handle, the first connecting rod is fixedly arranged at one side of the rotating disk, the second connecting rod is fixedly arranged at one end of the rotating handle, the steel wire is fixedly arranged on the second connecting rod, the other end of the steel wire is fixedly arranged on the first connecting rod, and.
In a preferred embodiment of the invention, the manhole cover further comprises a filter screen cylinder, and the filter screen cylinder is fixedly arranged in two circular holes of the double-hole manhole cover.
Compared with the prior art, the invention has the following advantages:
(1) the filter screen plate and the filter screen cylinder provided by the invention can filter garbage impurities in sewage on the uppermost layer of the well cover, are convenient to clean, and are not easy to cause device blockage to influence the utility of the device.
(2) The water outlet opening and closing mechanism and the stretching mechanism can drive the rotating disc to rotate through the floating of the rubber floating body so that the equilateral baffle plate slides, and water outlet openings with different sizes are formed according to the rotating angle, so that the size of the water outlet can be automatically adjusted according to the water discharge.
(3) The reset mechanism provided by the invention can drive the rotating disc to rotate by the contraction of the arc-shaped spring, so that the equilateral baffle is reset, and the well lid is drained by the filter screen cylinder.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic bottom view of the present invention.
Fig. 4 is a partial perspective view of the present invention.
Fig. 5 is a schematic view of a first separated three-dimensional structure of the present invention.
Fig. 6 is a schematic diagram of a second separated perspective structure of the present invention.
Wherein the figures include the following reference numerals: 1. well lid base, 2, diplopore well lid, 3, filter plate, 4, a supporting plate, 5, outlet opening and closing mechanism, 501, six face frid, 502, equilateral baffle, 503, push rod, 504, rotary disk, 6, canceling release mechanical system, 601, arc chamber board, 602, arc connecting strip, 603, arc spring, 7, tension mechanism, 701, installation riser, 702, rotation handle, 703, rubber float, 704, limit baffle, 705, head rod, 706, steel wire line, 707, second connecting rod, 8, filter screen section of thick bamboo.
Detailed Description
It is to be noted that, in the case of the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to identical components having the same reference numerals or the same component names in a meaningful manner. The positional references selected in the description, such as upper, lower, lateral, etc., refer also to the directly described and illustrated figures and are to be read into the new position in the sense of a change in position.
Referring to fig. 1-6, an embodiment of the present invention is shown: the utility model provides a can be according to municipal administration well lid of displacement automatically regulated outlet size, as shown in fig. 1-6, including well lid base 1, diplopore well lid 2, filter plate 3, backup pad 4, outlet mechanism 5, canceling release mechanical system 6 and tension mechanism 7 that open, open diplopore well lid 2 that has a big round hole and two little round holes movable the installation on well lid base 1, 3 fixed mounting of filter plate for filtering rubbish are in diplopore well lid 2's big round hole, two backup pad 4 welded fastening installs the inner wall at diplopore well lid 2, outlet mechanism 5 fixed mounting that opens and shuts that can adjust the outlet size is on backup pad 4, 6 fixed mounting that can drive outlet mechanism 5 that opens and shuts that resets just are connected with outlet mechanism 5 that opens and shuts in backup pad 4, can stimulate outlet mechanism 5 to rotate certain angle's tension mechanism 7 fixed mounting at outlet mechanism 5 that opens and shuts according to the displacement And (3) side.
The mechanism 5 that opens and shuts in outlet that can adjust outlet size is including six frid 501, equilateral baffle 502, push rod 503 and rotary disk 504, six frid 501 fixed mounting that the level set up has opened the hexagon recess at two backup pad 4 one sides and six frid 501 side, six equilateral baffle 502 slidingtype is installed in six frid 501's hexagon recess, six equilateral baffle 502 can slide along six frid 501's hexagon recess, six frid 501's a side fixed mounting has push rod 503, it installs in six frid 501's the outside and the movable word hole that is located rotary disk 504 of push rod 503 slidingtype, rotary disk 504 can rotate along six frid 501's the outside to open and shut.
The canceling release mechanical system 6 that can drive 5 resets of outlet opening and shutting mechanism is including arc chamber board 601, arc connecting strip 602 and arc spring 603, arc chamber board 601 fixed mounting who plays the guide effect just contacts on one side of rotary disk 504 in backup pad 4, arc connecting strip 602 fixed mounting and one end stretch into arc chamber board 601 on rotary disk 504 with arc chamber board 601 sliding type connection, arc connecting strip 602 can remove along arc chamber board 601, the arc spring 603 one end fixed mounting who plays the canceling release effect is on arc connecting strip 602, and other end fixed mounting is on arc chamber board 601, and arc spring 603 is located arc chamber board 601.
The stretching mechanism 7 capable of pulling the water outlet opening and closing mechanism 5 to rotate for a certain angle according to the water discharge amount comprises an installation vertical plate 701, a rotating handle 702, a rubber floating body 703, a limit baffle 704, a first connecting rod 705, a steel wire 706 and a second connecting rod 707, wherein the installation vertical plate 701 is fixedly installed on the bottom side surface of the supporting plate 4, the rotating handle 702 is rotatably installed at the bottom end of the installation vertical plate 701 through a hinge column, and the rubber floating body 703 capable of floating up along with the rise of the water level and moving down along with the fall of the water level is fixedly installed at the lower end of the rotating handle 702;
the limiting baffle 704 for limiting the rotation handle 702 is fixedly arranged at one end of the installation vertical plate 701 and positioned below the rotation handle 702, the first connecting rod 705 is fixedly arranged at the outer side of the rotation disk 504, the second connecting rod 707 is fixedly arranged at one end of the rotation handle 702, the steel wire 706 for connecting is fixedly arranged on the second connecting rod 707 and penetrates through the guide hole in the support plate 4, and the other end of the steel wire is fixedly arranged on the first connecting rod 705.
Still including a filter screen section of thick bamboo 8, filter screen section of thick bamboo 8 fixed mounting is in two circular holes of diplopore well lid 2. The filter screen plate 3 and the filter screen cylinder 8 can filter the garbage impurities in the sewage, and the cleaner can clean the garbage impurities very easily, so that the device can exert the maximum effect sustainably.
When the rainfall is small, the rainwater can flow downwards from the filter screen cylinder 8 along the small round holes of the double-hole well cover 2 and flow into the underground ditch.
When the rainfall is large, the water flow and the water quantity of the underground water channel are increased, when the water level rises to the height of the rubber floating body 703, the rubber floating body 703 rises along with the water level, and because the limit baffle 704 is positioned below the rotary handle 702 and contacts with the rotary handle, the rubber floating body 703 floats to drive the rotary handle 702 to rotate anticlockwise, so as to drive the second connecting rod 707 to move downwards, so that the steel wire 706 moves downwards to pull the first connecting rod 705, the first connecting rod moves to drive the rotary disk 504 to rotate clockwise, so that the arc spring 603 stretches, the push rod 503 slides outwards in a straight hole of the rotary disk 504, the equilateral baffles 502 are driven to slide outwards, a hexagonal hole is formed in the middle of the six equilateral baffles 502, and in the process, the hexagonal hole is continuously increased, so that rainwater can flow downwards from the filter screen cylinder 8 and also can flow downwards from the filter screen plate 3 to the water channel, the hexagonal water outlet is increased, and the drainage speed is increased, so that road ponding and urban waterlogging are not easy to occur, and the limit baffle 704 prevents the rotation handle 702 from rotating towards the direction.
When the rainfall stops the water level of the ditch to descend, the rubber floating body 703 moves downwards under the action of gravity to drive the rotary handle 702 to rotate clockwise, the steel wire 706 loses downward tension and becomes loose, the stretched arc-shaped spring 603 recovers to the original state to enable the arc-shaped connecting strip 602 to move towards the arc-shaped cavity plate 601 and drive the rotary disk 504 to rotate anticlockwise, so that the push rod 503 slides inwards in the straight hole of the rotary disk 504 to drive the equilateral baffles 502 to slide inwards, hexagonal holes formed in the middle of the six equilateral baffles 502 are reduced until the hexagonal holes are closed, and the size of the water outlet can be automatically adjusted according to the water discharge.
The technical principle of the embodiment of the present invention is described above in conjunction with the specific embodiments. The description is only intended to explain the principles of embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.
Claims (5)
1. The utility model provides a can be according to municipal administration sewage well lid of displacement automatically regulated outlet size which characterized in that: including well lid base, diplopore well lid, filter plate, backup pad, outlet opening and closing mechanism, canceling release mechanical system and tension mechanism, open the diplopore well lid that has a big round hole and two little round holes movable and install on the well lid base, filter plate fixed mounting is in the big round hole of diplopore well lid, two backup pad fixed mounting is in diplopore well lid one side, outlet opening and closing mechanism fixed mounting is in the backup pad, canceling release mechanical system fixed mounting just opens and shuts the mechanism with the outlet in the backup pad and is connected, tension mechanism fixed mounting is in outlet opening and closing mechanism one side.
2. The municipal sewage well cover according to claim 1, wherein the size of the drain opening is automatically adjusted according to the amount of drained water, and the well cover comprises: the outlet mechanism that opens and shuts is including six frid, equilateral baffle, push rod and rotary disk, six frid fixed mounting have the hexagon recess at the side of two backup pad one sides and six frid, and is a plurality of equilateral baffle slidingtype is installed in six frid's recess, a side fixed mounting of six frid has the push rod, it installs in six frid's the outside and the movable word hole that is located the rotary disk of push rod to open the rotary disk slidingtype that has a plurality of word holes.
3. The municipal sewage well cover capable of automatically adjusting the size of a drain port according to the amount of drained water according to claim 2, wherein: canceling release mechanical system is including arc chamber board, arc connecting strip and arc spring, arc chamber board fixed mounting in the backup pad and with rotary disk one side contact, arc connecting strip fixed mounting and one end stretch into arc chamber inboard with arc chamber board sliding type connection on the rotary disk, arc spring one end fixed mounting is on the arc connecting strip, and other end fixed mounting is on arc chamber board, and the arc spring is located arc chamber inboard.
4. The municipal manhole cover according to claim 3, wherein the size of the drain opening is automatically adjusted according to the amount of water discharged, and further comprising: the stretching mechanism comprises an installation vertical plate, a rotating handle, a rubber floating body, a limiting baffle, a first connecting rod, a steel wire line and a second connecting rod, wherein the installation vertical plate is fixedly installed on one side of a supporting plate, the rotating handle is rotatably installed at one end of the installation vertical plate, the rubber floating body is fixedly installed at one end of the rotating handle, the limiting baffle is fixedly installed at one end of the installation vertical plate and below the rotating handle, the first connecting rod is fixedly installed on one side of the rotating plate, the second connecting rod is fixedly installed at one end of the rotating handle, the steel wire line is fixedly installed on the second connecting rod, and the other end of the steel wire line is fixedly installed on the first connecting rod.
5. The municipal sewage well cover according to claim 1, wherein the size of the drain opening is automatically adjusted according to the amount of drained water, and the well cover comprises: the double-hole well cover is characterized by further comprising a filter screen cylinder, wherein the filter screen cylinder is fixedly arranged in two circular holes of the double-hole well cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792178.XA CN111851592A (en) | 2020-08-08 | 2020-08-08 | Can be according to municipal sewage well lid of displacement automatically regulated outlet size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792178.XA CN111851592A (en) | 2020-08-08 | 2020-08-08 | Can be according to municipal sewage well lid of displacement automatically regulated outlet size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111851592A true CN111851592A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010792178.XA Pending CN111851592A (en) | 2020-08-08 | 2020-08-08 | Can be according to municipal sewage well lid of displacement automatically regulated outlet size |
Country Status (1)
| Country | Link |
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| CN (1) | CN111851592A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279472A (en) * | 2021-05-28 | 2021-08-20 | 龚燕 | Automatic excretory sewage well lid according to rainwater flow |
| CN113431160A (en) * | 2021-05-19 | 2021-09-24 | 涂水妹 | Municipal administration sewer pipe outlet device |
| CN114197616A (en) * | 2021-12-08 | 2022-03-18 | 无锡市第五市政建设工程有限责任公司 | Municipal drainage is with rainwater well that has filtering capability and be convenient for flood discharge |
| CN118686282A (en) * | 2024-08-23 | 2024-09-24 | 成都市消防安全治理技术保障中心 | A fire-fighting manhole cover and its use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733423A (en) * | 2011-04-14 | 2012-10-17 | 上海市大同中学 | Pipeline drainage structure |
| KR101326602B1 (en) * | 2013-07-04 | 2013-11-08 | 태산인더스 주식회사 | Apparatus for draining of rain water for road |
| CN209931672U (en) * | 2019-01-16 | 2020-01-14 | 深圳市诺嘉源科技有限公司 | Artificial intelligence wrist-watch convenient to wear |
| CN110725338A (en) * | 2019-10-29 | 2020-01-24 | 施亮 | Sewage treatment road well lid capable of automatically adjusting water flow |
| CN111173114A (en) * | 2020-01-14 | 2020-05-19 | 中国矿业大学 | A rapid drainage device for underground space |
| CN210797649U (en) * | 2019-04-15 | 2020-06-19 | 湖南金龙智造科技股份有限公司 | Safe intelligent well lid |
-
2020
- 2020-08-08 CN CN202010792178.XA patent/CN111851592A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733423A (en) * | 2011-04-14 | 2012-10-17 | 上海市大同中学 | Pipeline drainage structure |
| KR101326602B1 (en) * | 2013-07-04 | 2013-11-08 | 태산인더스 주식회사 | Apparatus for draining of rain water for road |
| CN209931672U (en) * | 2019-01-16 | 2020-01-14 | 深圳市诺嘉源科技有限公司 | Artificial intelligence wrist-watch convenient to wear |
| CN210797649U (en) * | 2019-04-15 | 2020-06-19 | 湖南金龙智造科技股份有限公司 | Safe intelligent well lid |
| CN110725338A (en) * | 2019-10-29 | 2020-01-24 | 施亮 | Sewage treatment road well lid capable of automatically adjusting water flow |
| CN111173114A (en) * | 2020-01-14 | 2020-05-19 | 中国矿业大学 | A rapid drainage device for underground space |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431160A (en) * | 2021-05-19 | 2021-09-24 | 涂水妹 | Municipal administration sewer pipe outlet device |
| CN113279472A (en) * | 2021-05-28 | 2021-08-20 | 龚燕 | Automatic excretory sewage well lid according to rainwater flow |
| CN113279472B (en) * | 2021-05-28 | 2022-08-16 | 杭州市钱塘区综合行政执法局 | Automatic excretory sewage well lid according to rainwater flow |
| CN114197616A (en) * | 2021-12-08 | 2022-03-18 | 无锡市第五市政建设工程有限责任公司 | Municipal drainage is with rainwater well that has filtering capability and be convenient for flood discharge |
| CN118686282A (en) * | 2024-08-23 | 2024-09-24 | 成都市消防安全治理技术保障中心 | A fire-fighting manhole cover and its use method |
| CN118686282B (en) * | 2024-08-23 | 2024-11-22 | 成都市消防安全治理技术保障中心 | A fire-fighting manhole cover and its use method |
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Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |