CN110409597A - Well cover for sewer with self-cleaning function - Google Patents
Well cover for sewer with self-cleaning function Download PDFInfo
- Publication number
- CN110409597A CN110409597A CN201910691092.5A CN201910691092A CN110409597A CN 110409597 A CN110409597 A CN 110409597A CN 201910691092 A CN201910691092 A CN 201910691092A CN 110409597 A CN110409597 A CN 110409597A
- Authority
- CN
- China
- Prior art keywords
- well lid
- fixed frame
- sewer
- well
- lid fixed
- 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.)
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Classifications
-
- 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
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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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
A kind of well cover for sewer with self-cleaning function of the present invention discloses a kind of well cover for sewer that can make conveyer belt rotation that will clear up in the useless case of rubbish propulsion storage thereon by jamming on cover board.It is characterized in that two support plates are placed in parallel in well lid fixed frame, and the two sidewalls that two support plates are opposite respectively close to well lid fixed frame, the lower section of the support board ends is equipped with limited block respectively, the limited block is connected with well lid fixed frame inner wall, the both ends of the support plate are placed on limited block respectively, multiple buffer springs are equidistantly placed in support plate, well lid is placed in well lid fixed frame top, and the bottom of well lid is connected with the buffer spring in two support plates, multiple Water tanks are equidistantly provided on the cover board, two live-rollers are placed in well lid fixed frame in parallel respectively, and respectively close to the both ends of well lid fixed frame, the both ends of the live-roller pass through bearing respectively and two inner sidewalls of well lid fixed frame are rotatably connected.
Description
Technical field
A kind of well cover for sewer with self-cleaning function of the present invention is related to a kind of sewer that can be cleared up automatically
Square well cover belongs to municipal works field.In particular to a kind of conveyer belt rotation to be made rubbish thereon by jamming on cover board
Rubbish promotes the well cover for sewer for storing up and being cleared up in useless case.
Background technique
Rectangular well cover for sewer is alternatively referred to as cast iron double-edged fine-toothed comb, for covering road or family's middle-deep well, prevents people or object
It falls, metal well lid, high strength fibre cement concrete well lid, Resin man-hole cover etc. can be divided by material, sewer well now
Lid is mostly through type, can only be blocked to the biggish rubbish of volume and the rubbish of some small sizes for example fall leaves, branch
Well lid can be passed through Deng then to be flowed into sewer, and the blocking of sewer is be easy to cause under these small-sized rubbish long-term accumulations, is needed
Staff is timely dredged, and the biggish amount of labour of staff is caused.
Notification number CN206829190U discloses a kind of antitheft well lid easy to clean, including well lid and pedestal；The well lid is whole
Body is rectangle, and tag slot, weep hole, anti-slip hole and theft-prevention structure are arranged on well lid, and the tag slot, which is arranged, prolongs side in well lid,
The weep hole is evenly distributed in runway shape, and the anti-slip hole uses circular shrinkage hole, and the theft-prevention structure is using connection boss, institute
Stating pedestal includes mounting structure, connection installing structure and hydrophobic structure, and the mounting structure prolongs side setting installation at pedestal three
Edge is arranged on hydrophobic structure in hole, the connection installing structure, and the hydrophobic structure is dredged in the side setting for being fitted without structure
Latticed cleaning net is arranged close to the inside of hydrophobic structure in water hole, weep hole；The device can only carry out large volume of rubbish
It blocks, small size rubbish can not effectively be cleared up.
Notification number CN206267282U discloses a kind of sewer well head cover board, including square well cover ontology, manhole cover body
On offer several leakage holes, manhole cover body bottom surface both ends are provided with support ear, and shaft is housed between support ear, is filled in shaft
There is plugging plate, in no external force, plugging plate is in horizontality, so that gutter inner cavity be separated with the external world, works as surface gathered water
When being dropped on plugging plate across leakage hole, plugging plate run-off the straight, gutter inner cavity is communicated with the outside world, ponding take advantage of a situation inflow row
In ditch, it is formed by reinforcing rib between several leakage holes being laterally arranged and between several longitudinally disposed leakage holes
Equipped with a layer thickness be 4mm, highly be 7mm glass fibre, adhesion is easy on the plugging plate of the device and accumulates small-sized rubbish
It such as falls leaves, causes the blocking of whole well lid, influence proper drainage.
Summary of the invention
In order to improve above situation, a kind of well cover for sewer with self-cleaning function of the present invention provides a kind of by stepping on
Cover clamp can make conveyer belt rotation that rubbish thereon is promoted to the well cover for sewer for storing up and clearing up in useless case.
A kind of well cover for sewer with self-cleaning function of the present invention is achieved in that of the invention a kind of with self-cleaning
The well cover for sewer of function by well lid fixed frame, cover board, Water tank, limited block, buffer spring, support plate, conveyer belt, slide bar,
Handle stores up useless case, bar shaped tooth, through slot, driving gear, chain, live-roller, fixed link, driven gear and ratchet composition, two branch
Fagging is placed in parallel in well lid fixed frame, and the two sidewalls that two support plates are opposite respectively close to well lid fixed frame, the support
The lower section of board ends is equipped with limited block respectively, and the limited block is connected with well lid fixed frame inner wall, the both ends of the support plate
It is placed on limited block respectively, multiple buffer springs are equidistantly placed in support plate, and well lid is placed in well lid fixed frame top, and well lid
Bottom be connected with the buffer spring in two support plates, multiple Water tanks, two live-rollers are equidistantly provided on the cover board
It is placed in well lid fixed frame in parallel respectively, and respectively close to the both ends of well lid fixed frame, the both ends of the live-roller pass through respectively
Two inner sidewalls of bearing and well lid fixed frame are rotatably connected, and conveyer belt is placed on two live-rollers, and transmission belt is located at lid
The underface of plate is equipped with driven gear on one end of the live-roller, and the driven gear on two live-rollers is located at difference
It holds, is provided with sliding groove, and both ends of the sliding groove in two support plates respectively close to well lid fixed frame, slide bar in the support plate
Through sliding groove, the bottom end of the slide bar connects a bar shaped tooth, and two fixed links, which are respectively perpendicular, is placed in two support plate bottoms,
And it is adjacent with slide bar, the bottom end of the fixed link is equipped with rotatable driving gear, and drives the item on gear and adjacent slide bar
Shape tooth is meshed, and is equipped with ratchet on the axis of the driving gear, the ratchet in two fixed links passes through chain and two respectively
Driven gear on a live-roller is connected, and stores up useless case and is placed in well lid fixed frame, and is affixed with well lid fixed frame one end inner wall
It closes, the open top for storing up useless case is corresponding with transmission lid one end, and handle is placed in the useless box top of storage, the well lid fixed frame
Bottom is provided with through slot, and the bar shaped tine length is greater than slide bar length, and the Water tank is strip slot, the two sides of the conveyer belt
Gap is equipped between side and two inner sidewalls of well lid fixed frame, the support plate and fixed link are integrally formed, the transmission skin
Belt surface is equipped with tread plate, the width for storing up useless case be equal between conveyer belt one end and well lid fixed frame one end inner wall away from
From；
Further, the centre of the conveyer belt raises upward；
Further, the bottom for storing up useless case is provided with multiple drain holes, and the aperture of the drain hole is gradually reduced from inside to outside.
Beneficial effect.
One, automatically recycling cleaning effectively is carried out to the small-sized rubbish for passing through well lid, reduces the blocking feelings of sewer
Condition alleviates the workload of dredging personnel.
Two, override type clears up structure automatically, without expending extra power, more energy conservation and environmental protection.
Three, certain effect for excluding peculiar smell is played.
Four, the pullable convenient rubbish to accumulation of useless case that stores up carries out centralized recovery processing.
Detailed description of the invention
A kind of three-dimensional structure diagram of the well cover for sewer with self-cleaning function of Fig. 1 present invention；
A kind of structural schematic diagram of the well cover for sewer with self-cleaning function of Fig. 2 present invention；
A kind of three-dimensional structure diagram of the well cover for sewer internal structure with self-cleaning function of Fig. 3 present invention, which show removals
Structure after well lid fixed frame；
A kind of three-dimensional structure diagram of the well cover for sewer internal drive structure with self-cleaning function of Fig. 4 present invention, which show
Internal structure after removing conveyer belt；
A kind of structural schematic diagram of the well cover for sewer embodiment 2 with self-cleaning function of Fig. 5 present invention；
A kind of three-dimensional structure diagram of the well cover for sewer embodiment 3 with self-cleaning function of Fig. 6 present invention.
In attached drawing
Wherein are as follows: well lid fixed frame (1), cover board (2), Water tank (3), limited block (4), buffer spring (5), support plate (6) pass
Band (7), slide bar (8) are sent, handle (9) stores up useless case (10), bar shaped tooth (11), through slot (12), it drives gear (13), chain (14),
Live-roller (15), fixed link (16), driven gear (17), ratchet (18), raised (19), drain hole (20).
Specific embodiment:
Embodiment 1:
A kind of well cover for sewer with self-cleaning function of the present invention is achieved in that of the invention a kind of with self-cleaning function
Well cover for sewer by well lid fixed frame (1), cover board (2), Water tank (3), limited block (4), buffer spring (5), support plate
(6), conveyer belt (7), slide bar (8), handle (9), storage useless case (10), bar shaped tooth (11), through slot (12), driving gear (13), chain
Item (14), live-roller (15), fixed link (16), driven gear (17) and ratchet (18) composition, two support plates (6) are placed in parallel
In well lid fixed frame (1), and the two sidewalls that two support plates (6) are opposite respectively close to well lid fixed frame (1), the support plate
(6) lower section at both ends is equipped with limited block (4) respectively, and the limited block (4) is connected with well lid fixed frame (1) inner wall, the branch
The both ends of fagging (6) are placed on respectively on limited block (4), and multiple buffer springs (5) are equidistantly placed on support plate (6), and well lid is set
In well lid fixed frame (1) top, and the bottom of well lid is connected with the buffer spring (5) on two support plates (6), the cover board
(2) it is equidistantly provided on multiple Water tanks (3), two live-rollers (15) are placed in parallel respectively in well lid fixed frame (1), and lean on respectively
The both ends of nearly well lid fixed frame (1), the both ends of the live-roller (15) pass through two insides of bearing and well lid fixed frame (1) respectively
Wall is rotatably connected, and conveyer belt (7) is placed on two live-rollers (15), and transmission belt is located at the underface of cover board (2), described
It is equipped on one end of live-roller (15) driven gear (17), and the driven gear (17) on two live-rollers (15) is located at difference
It holds, is provided with sliding groove on the support plate (6), and the sliding groove on two support plates (6) is respectively close to well lid fixed frame (1)
Both ends, slide bar (8) runs through sliding groove, and slide bar (8) top is connected with cover board (2), and the bottom end of the slide bar (8) connects one
Bar shaped tooth (11), two fixed links (16), which are respectively perpendicular, is placed in two support plate (6) bottoms, and adjacent with slide bar (8), described solid
The bottom end of fixed pole (16) is equipped with rotatable driving gear (13), and drives the bar shaped tooth on gear (13) and adjacent slide bar (8)
(11) it is meshed, is equipped with ratchet (18) on the axis of driving gear (13), the ratchet (18) on two fixed links (16)
It is connected respectively by chain (14) with the driven gear (17) on two live-rollers (15), storage useless case (10) is placed in well lid and fixes
In frame (1), and fit with well lid fixed frame (1) one end inner wall, the open top for storing up useless case (10) and transmission lid one end
Corresponding, handle (9) is placed at the top of storage useless case (10), and the bottom of the well lid fixed frame (1) is provided with through slot (12), the bar shaped
Tooth (11) length is greater than slide bar (8) length, and the Water tank (3) is strip slot, the two sides of the conveyer belt (7) and well lid
Gap is equipped between two inner sidewalls of fixed frame (1), the support plate (6) and fixed link (16) are integrally formed, the transmission
Belt surface is equipped with tread plate, and the width for storing up useless case (10) is equal in conveyer belt (7) one end and well lid fixed frame (1) one end
The distance between wall；
In use, well lid is mounted on sewer mouth first, sewage is flowed into sewer by Water tank (3) and through slot (12),
Rubbish in sewage is fallen on conveyer belt (7), and personnel trample when on cover board (2), and cover board (2) decline drives the slide bar at both ends
(8) slide downward, buffer spring (5) are compressed, and the bar shaped tooth (11) of slide bar (8) bottom end moves down, bar shaped tooth (11) and drive
Moving gear (13) engagement, and then driving gear (13) rotation is driven, driving gear (13) rotation drives ratchet (18) to be rotated,
Ratchet (18) rotation drives chain (14) transmission, so that the driven gear (17) on the axis of live-roller (15) one end rotates, with this band
Dynamic live-roller (15) rotate, and drive conveyer belt (7) mobile, and small-sized rubbish movement on conveyer belt (7) is pushed into storage with this and is given up
It in case (10), unclamps cover board (2), cover board (2) is automatic in the case where buffer spring (5) push to be restored；
It stores up and has handle (9) on useless case (10), after storing up the rubbish in useless case (10) has expired, cover board (2) are opened, handle is passed through
(9) useless case (10) can will be stored up to propose to clear up；
Embodiment 2:
The difference of the present embodiment and embodiment 1 are as follows: the centre of the conveyer belt (7) raises upward (19)；In use, facilitating water flow
It is wandered from conveyer belt (7) two sides；
Embodiment 3:
The difference of the present embodiment and embodiment 1 are as follows: the bottom for storing up useless case (10) is provided with multiple drain holes (20), the draining
The aperture in hole (20) is gradually reduced from inside to outside；In use, drawing to effective dredge of water flow progress stored up in useless case (10) is entered
Stream guarantees to store up in useless case (10) and does not accumulate waste water；
It is equipped with the design in gap between the two sides of the conveyer belt (7) and two inner sidewalls of well lid fixed frame (1), makes conveyer belt
(7) water flow on can be wandered downwards from conveyer belt (7) two sides；
The design that the support plate (6) and fixed link (16) are integrally formed, bonding strength is big, is hardly damaged, and to cover board (2)
Stability of strutting system it is also preferable；
The feed belt surface is equipped with the design of tread plate, increases the friction on conveyer belt (7) between rubbish and conveyer belt (7)
Power avoids it from sliding from conveyer belt (7)；
The width for storing up useless case (10) is equal to the distance between conveyer belt (7) one end and well lid fixed frame (1) one end inner wall
Design, make the width for storing up useless case (10) fit into be mounted on conveyer belt (7) one end and well lid fixed frame (1) one end inner wall it
Between, it avoids retaining redundant space, it is more stable when making to store up useless case (10) clamping in the position；
Bar shaped tooth (11) length is greater than the design of slide bar (8) length, increases bar shaped tooth (11) and moves down drive driving gear
(13) time rotated guarantees that the rubbish on conveyer belt (7) can be pushed into completely in storage useless case (10)；
The slide bar (8) cooperates cover board (2), bar shaped tooth (11) can be made to move down drive driving gear (13) rotation, and then make to pass
Band (7) rotation is sent to be transmitted rubbish；
Useless case (10) are stored up in conveyer belt (7) cooperation, can be concentrated the rubbish of collection and be taken in storage useless case (10), be convenient for postorder
It is cleared up；
It pushes cover board (2), the design of conveyer belt (7) rotation, the rubbish on conveyer belt (7) can be carried out by artificial jamming on
It passes and collects, cleared up automatically；
Conveyer belt (7) rotation, rubbish are pushed into the design stored up in useless case (10), can collect to the rubbish on conveyer belt (7)
In storage cleaning, so that the rubbish in postorder waste water is deposited on conveyer belt (7)；
Reaching can make conveyer belt (7) rotation that will carry out clearly in rubbish propulsion storage useless case (10) thereon by jamming on cover board (2)
The purpose of reason.
Above-described embodiment is presently preferred embodiments of the present invention, is not intended to limit the invention the range of implementation.Any ability
The those of ordinary skill in domain is not departing from invention scope of the invention, improves when can make a little, i.e., all according to the present invention
The same improvement done, should be the scope of the present invention and is covered.It is further noted that above-mentioned specific embodiment is being retouched
When stating, in order to simple and clear, the difference between other embodiments is merely depicted, but those skilled in the art should
Know, above-mentioned specific embodiment itself is also independent technical solution.
Claims (10)
1. a kind of well cover for sewer with self-cleaning function, it is characterized in that: by well lid fixed frame, cover board, Water tank, limit
Block, buffer spring, support plate, conveyer belt, slide bar, handle, store up useless case, bar shaped tooth, through slot, driving gear, chain, live-roller,
Fixed link, driven gear and ratchet composition, two support plates are placed in parallel in well lid fixed frame, and two support plates respectively close to
The opposite two sidewalls of well lid fixed frame, the lower section of the support board ends are equipped with limited block respectively, and the limited block and well lid are solid
Determine frame inner wall to be connected, the both ends of the support plate are placed on limited block respectively, and multiple buffer springs are equidistantly placed in support plate
On, well lid is placed in well lid fixed frame top, and the bottom of well lid is connected with the buffer spring in two support plates, the cover board
On be equidistantly provided with multiple Water tanks, two live-rollers are placed in well lid fixed frame in parallel respectively, and respectively close to well lid fixed frame
Both ends, the both ends of the live-roller pass through bearing respectively and two inner sidewalls of well lid fixed frame are rotatably connected, conveyer belt set
It is placed on two live-rollers, and transmission belt is located at the underface of cover board, is equipped with driven gear on one end of the live-roller, and
Driven gear on two live-rollers is located at different ends, and sliding groove, and the sliding in two support plates are provided in the support plate
Slot is respectively close to the both ends of well lid fixed frame, and slide bar runs through sliding groove, and top end of sliding rod is connected with cover board, the bottom of the slide bar
One bar shaped tooth of end connection, two fixed links, which are respectively perpendicular, is placed in two support plate bottoms, and, the fixed link adjacent with slide bar
Bottom end be equipped with rotatable driving gear, and the bar shaped tooth on gear and adjacent slide bar is driven to be meshed, the driving gear
Axis on be equipped with ratchet, the ratchet in two fixed links passes through the driven gear on chain and two live-rollers respectively and is connected
Connect, store up useless case and be placed in well lid fixed frame, and fit with well lid fixed frame one end inner wall, the open top for storing up useless case and
It is corresponding to transmit lid one end, handle is placed in the useless box top of storage.
2. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the conveyer belt
Centre raise upward, in use, water flow is facilitated to wander from conveyor belt two sides.
3. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that described to store up useless case
Bottom be provided with multiple drain holes, the aperture of the drain hole is gradually reduced from inside to outside.
4. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the conveyer belt
Two sides and well lid fixed frame two inner sidewalls between be equipped with gap.
5. a kind of well cover for sewer with self-cleaning function according to claim 1 or 3, it is characterised in that the storage is useless
The width of case is equal to the distance between conveyer belt one end and well lid fixed frame one end inner wall, and the width for storing up useless case is made to fit into peace
Between conveyer belt one end and well lid fixed frame one end inner wall, avoids retaining redundant space, make to store up useless clamp and hold in the position
Shi Gengjia stablizes.
6. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the bar shaped tooth
Length is greater than slide bar length, increases bar shaped tooth and moves down the time for driving driving gear rotation, guarantees that the rubbish on conveyer belt can
It is pushed into the useless case of storage completely.
7. a kind of well cover for sewer with self-cleaning function according to claim 4, it is characterised in that the transmission skin
Belt surface is equipped with tread plate.
8. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the slide bar is matched
Closing lid plate can make bar shaped tooth move down drive driving gear rotation, and then be transmitted conveyer belt rotation to rubbish.
9. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the Water tank
For strip slot.
10. a kind of well cover for sewer with self-cleaning function according to claim 1, it is characterised in that the well lid is solid
The bottom for determining frame is provided with through slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691092.5A CN110409597A (en) | 2019-08-16 | 2019-08-16 | Well cover for sewer with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691092.5A CN110409597A (en) | 2019-08-16 | 2019-08-16 | Well cover for sewer with self-cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110409597A true CN110409597A (en) | 2019-11-05 |
Family
ID=68363918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910691092.5A Pending CN110409597A (en) | 2019-08-16 | 2019-08-16 | Well cover for sewer with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409597A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321798A (en) * | 2020-03-30 | 2020-06-23 | 东阳韵源自动化科技有限公司 | Sewer well lid of municipal administration usefulness |
| CN111561045A (en) * | 2020-06-11 | 2020-08-21 | 陈志峰 | Municipal administration inspection shaft prevents stifled drainage system |
| CN112012320A (en) * | 2020-08-27 | 2020-12-01 | 淄博英睿达机械科技有限公司 | Rope grid type municipal self-cleaning drainage device |
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| JP4034448B2 (en) * | 1998-11-17 | 2008-01-16 | 株式会社ダイクレ | Open lid |
| KR20090126063A (en) * | 2008-06-03 | 2009-12-08 | 이병현 | Drain sewage |
| CN202809824U (en) * | 2012-09-24 | 2013-03-20 | 李继宽 | Anti-blocking system of drainage pipeline |
| CN203977546U (en) * | 2014-07-18 | 2014-12-03 | 东联(上海)创意设计发展有限公司 | Gardens dewatering installation |
| CN108301491A (en) * | 2018-01-11 | 2018-07-20 | 旗舰集团有限公司 | A kind of municipal discharge water-bound with anti-blockage function |
| CN109610621A (en) * | 2018-11-15 | 2019-04-12 | 陈金玉 | A kind of anti-blocking grate of sewer active |
| CN208748789U (en) * | 2018-06-11 | 2019-04-16 | 武汉科技大学 | A kind of conveyor type water-saving squatting pan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4034448B2 (en) * | 1998-11-17 | 2008-01-16 | 株式会社ダイクレ | Open lid |
| KR20090126063A (en) * | 2008-06-03 | 2009-12-08 | 이병현 | Drain sewage |
| CN202809824U (en) * | 2012-09-24 | 2013-03-20 | 李继宽 | Anti-blocking system of drainage pipeline |
| CN203977546U (en) * | 2014-07-18 | 2014-12-03 | 东联(上海)创意设计发展有限公司 | Gardens dewatering installation |
| CN108301491A (en) * | 2018-01-11 | 2018-07-20 | 旗舰集团有限公司 | A kind of municipal discharge water-bound with anti-blockage function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321798A (en) * | 2020-03-30 | 2020-06-23 | 东阳韵源自动化科技有限公司 | Sewer well lid of municipal administration usefulness |
| CN111561045A (en) * | 2020-06-11 | 2020-08-21 | 陈志峰 | Municipal administration inspection shaft prevents stifled drainage system |
| CN112012320A (en) * | 2020-08-27 | 2020-12-01 | 淄博英睿达机械科技有限公司 | Rope grid type municipal self-cleaning drainage device |
| CN112012320B (en) * | 2020-08-27 | 2022-09-13 | 江阴市建园建设工程有限公司 | Rope grid type municipal self-cleaning drainage device |
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Application publication date: 20191105 |