CN111501977A - Safe anti-overflow inspection shaft lid - Google Patents
Safe anti-overflow inspection shaft lid Download PDFInfo
- Publication number
- CN111501977A CN111501977A CN202010213668.XA CN202010213668A CN111501977A CN 111501977 A CN111501977 A CN 111501977A CN 202010213668 A CN202010213668 A CN 202010213668A CN 111501977 A CN111501977 A CN 111501977A
- Authority
- CN
- China
- Prior art keywords
- cover
- water
- overflow
- cavity
- inspection well
- 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.)
- Granted
Links
Images
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
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
Landscapes
- 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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a safe anti-overflow inspection well cover, which relates to the field of municipal construction and comprises a top cover, wherein a supporting device is arranged below the top cover, two water drainage holes are formed in the top cover in a penetrating manner, the bottom end of the top cover is positioned at the water drainage holes and fixedly connected with a sewer pipe, an anti-overflow mechanism is arranged in the sewer pipe and comprises a water inlet cavity, a middle cavity and a water outlet cavity, the water inlet cavity, the middle cavity and the water outlet cavity are sequentially arranged and communicated from top to bottom, a first circulation hole is formed in the joint of the water inlet cavity and the middle cavity, a second circulation hole is formed in the joint of the water outlet cavity and the middle cavity, and a floating ball is arranged in the middle cavity. The anti-overflow inspection well cover can support the top cover at multiple points by arranging the supporting device, so that the inspection well cover has double protection functions, and water in a sewer can be effectively prevented from overflowing and flowing backwards to the road surface by arranging the anti-overflow mechanism under the condition of meeting the requirement of road surface drainage, so that the safety and the sanitation of the road surface are improved.
Description
Technical Field
The invention relates to the field of municipal construction, in particular to a safe anti-overflow inspection well cover.
Background
In urban construction there are numerous underground pipes, such as sewers, underground gas pipes, communication pipes, electric power pipes, etc., and in order to maintain these pipe installations, there are outlets to the ground at intervals along the pipe layout, and the section from the pipe to the ground is called a manhole. The manhole is usually flush with the ground, so a cover is required to cover the manhole, called manhole cover. The inspection well cover is usually made of reinforced cement, metal, reinforced plastic and other materials, and the shape of the inspection well cover mainly takes a round shape and a square shape. Generally, the purpose of the underground pipeline, the management and maintenance unit, the telephone and other information are noted on the inspection well cover.
Generally, a drain hole is formed in an inspection well cover and used for draining accumulated water on a road surface generated in rainy days and the like into a sewer, various sewages are introduced into the sewer to form a source of mosquitoes and toxic gases, the mosquitoes and the toxic gases can come out from the drain hole in the inspection well cover, accordingly, bad influences are caused on pedestrians and the surrounding environment, and most intuitively, a person can smell a bad smell near the inspection well cover.
In the patent document of the chinese utility model with publication number CN206090631U, an anti-overflow inspection well cover is disclosed, which is under the conventional state, because of the action of the elastic element, the valve core is abutted with the overflow port, thereby plugging the channel and preventing the gas in the sewer from overflowing, when there is water accumulation above the well cover, the water enters into the water storage cavity from the water seepage hole on the separation cover and gathers in the water storage cavity, because of the action of the water pressure, the accumulated water can push the valve core to separate from the overflow port, so that the accumulated water continuously flows into the sewer from the drainage channel, and the function of eliminating the accumulated water is achieved; in the process, because water is continuously filled in the channel, the water sealing effect is realized on the drainage channel, and the gas in the sewer cannot overflow; in a wet state, water is accumulated in the water storage cavity, and the pushing of the valve core is required to exceed the set threshold value, namely, the water storage cavity is always filled with water, so that the water storage cavity also plays a water sealing role while the valve core is blocked. When sundries accumulated in the water storage cavity and the overflow port need to be cleaned, the sundries in the water storage cavity can be cleaned only by holding the handle and screwing the separation partition plate. When parts of the valve core part need to be replaced or overhauled, the water guide channel only needs to be screwed out and taken down, and then the valve core part can be replaced or overhauled. However, after the inspection well cover is impacted from the ground or pressed when the automobile runs, the inspection well cover cannot be released due to the fixed clamping, and is easily damaged.
Disclosure of Invention
The invention aims to provide a safe and anti-overflow inspection well cover to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the inspection well cover comprises a top cover, a supporting device is arranged below the top cover, two lower water holes are formed in the top cover in a penetrating mode, the bottom end of the top cover is located at the lower water holes and fixedly connected with a lower water pipe, a water collecting cover is fixedly connected to the bottom end of the lower water pipe, a bottom cover is fixedly connected to the bottom end of the water collecting cover, a connecting seat is fixedly connected between the two water collecting covers, and an anti-overflow mechanism is arranged in the lower water pipe.
As a further scheme of the invention: the supporting device comprises a base, the base is in a circular ring shape, the top end of the base is fixedly connected with a plurality of supporting columns, the top end of each supporting column is fixedly connected with a fixing sleeve, a ball is rotationally connected in the fixing sleeve, a circular ring-shaped chute is formed in the bottom surface of the top cover, and the ball is arranged in the chute and is in rolling connection with the top cover.
As a further scheme of the invention: the fixed sleeve and the ball are made of stainless steel materials.
As a further scheme of the invention: the anti-overflow mechanism is including seting up intake antrum, middle chamber and play water cavity in the end cover, intake antrum, middle chamber and play water cavity are from last to arranging the setting in proper order down and communicate, the intake antrum is equipped with first circulation mouth with the junction of middle chamber, it is equipped with the second circulation mouth with the junction of middle chamber to go out the water cavity, be equipped with the floater in the middle chamber.
As a further scheme of the invention: the diameter of the floating ball is larger than the first circulation port and the second circulation port, and the density of the floating ball is smaller than that of water.
As a further scheme of the invention: and a second barrier net is fixedly arranged at the top end of the water inlet cavity.
As a further scheme of the invention: and a first blocking net is fixedly arranged at the top part in the lower water hole.
As a further scheme of the invention: and a third block net is fixedly connected in the bottom cover, and the bottom end of the connecting seat is fixedly connected with a shunt bulge.
As a further scheme of the invention: the top cover comprises a cast iron cover or a cement cover.
As a further scheme of the invention: the inside a plurality of cavitys that are equipped with of top cap, all fill in every cavity and be equipped with the amortization material.
Compared with the prior art, the invention has the beneficial effects that: the anti-overflow inspection well cover can support the top cover at multiple points by arranging the supporting device, so that the inspection well cover has double protection functions, and water in a sewer can be effectively prevented from overflowing and flowing backwards to the road surface by arranging the anti-overflow mechanism under the condition of meeting the requirement of road surface drainage, so that the safety and the sanitation of the road surface are improved.
Drawings
Fig. 1 is a schematic structural diagram of a safety overflow-proof inspection well cover.
Fig. 2 is a schematic top view of a safety overflow-proof manhole cover.
Fig. 3 is a schematic structural diagram of an overflow prevention mechanism in a safety overflow prevention inspection well cover.
Fig. 4 is a schematic structural diagram of a support device in a safety overflow-proof inspection well cover.
Fig. 5 is a schematic structural diagram of the inside of a bottom cover in the inspection well cover for preventing overflow safely.
In the figure: 1-top cover, 2-sewer pipe, 3-support column, 4-base, 5-water collecting cover, 6-bottom cover, 7-connecting base, 8-sewer hole, 9-first barrier net, 10-middle cavity, 11-water inlet cavity, 12-water outlet cavity, 13-floating ball, 14-second barrier net, 15-fixing sleeve, 16-rolling ball, 17-flow dividing protrusion, 18-third barrier net, 19-first circulation port and 20-second circulation port.
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.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-5, a safety anti-overflow manhole cover includes a top cover 1, a supporting device is disposed below the top cover 1, two drain holes 8 are formed through the top cover 1, and a first barrier net 9 is fixed on the top of the drain holes 8. The bottom end of the top cover 1 is fixedly connected with a sewer pipe 2 at a sewer hole 8, the bottom end of the sewer pipe 2 is fixedly connected with a water collecting cover 5, the bottom end of the water collecting cover 5 is fixedly connected with a bottom cover 6, a connecting seat 7 is fixedly connected between the two water collecting covers 5, and an anti-overflow mechanism is arranged in the sewer pipe 2.
Prevent overflow mechanism including seting up intake antrum 11, middle chamber 10 and play water cavity 12 in end cover 6, intake antrum 11, middle chamber 10 and play water cavity 12 are from last to arranging setting gradually down and communicating, intake antrum 11 is equipped with first circulation mouth 19 with the junction of middle chamber 10, it is equipped with second circulation mouth 20 with the junction of middle chamber 10 to go out water cavity 12, be equipped with floater 13 in the middle chamber 10. The diameter of the floating ball 13 is larger than the first and second flow ports 19, 20, and the density of the floating ball 13 is smaller than that of water. And a second barrier net 14 is fixedly arranged at the top end of the water inlet cavity 11.
The roof 1 comprises a cast iron or cement cover. A plurality of cavities are formed in the top cover 1, and a silencing material is filled in each cavity.
Example 2
Referring to fig. 1-5, a safety anti-overflow manhole cover includes a top cover 1, a supporting device is disposed below the top cover 1, two drain holes 8 are formed through the top cover 1, and a first barrier net 9 is fixed on the top of the drain holes 8. The bottom end of the top cover 1 is fixedly connected with a sewer pipe 2 at a sewer hole 8, the bottom end of the sewer pipe 2 is fixedly connected with a water collecting cover 5, the bottom end of the water collecting cover 5 is fixedly connected with a bottom cover 6, a connecting seat 7 is fixedly connected between the two water collecting covers 5, and an anti-overflow mechanism is arranged in the sewer pipe 2.
The supporting device comprises a base 4, the base 4 is circular, the top end of the base 4 is fixedly connected with a plurality of supporting columns 3, the top end of each supporting column 3 is fixedly connected with a fixing sleeve 15, a ball 16 is rotatably connected in the fixing sleeve 15, a circular sliding groove is formed in the bottom surface of the top cover 1, and the ball 16 is arranged in the sliding groove and is in rolling connection with the top cover 1. The fixing sleeve 15 and the balls 16 are made of stainless steel materials.
Prevent overflow mechanism including seting up intake antrum 11, middle chamber 10 and play water cavity 12 in end cover 6, intake antrum 11, middle chamber 10 and play water cavity 12 are from last to arranging setting gradually down and communicating, intake antrum 11 is equipped with first circulation mouth 19 with the junction of middle chamber 10, it is equipped with second circulation mouth 20 with the junction of middle chamber 10 to go out water cavity 12, be equipped with floater 13 in the middle chamber 10. The diameter of the floating ball 13 is larger than the first and second flow ports 19, 20, and the density of the floating ball 13 is smaller than that of water. And a second barrier net 14 is fixedly arranged at the top end of the water inlet cavity 11.
The roof 1 comprises a cast iron or cement cover. A plurality of cavities are formed in the top cover 1, and a silencing material is filled in each cavity. The sound deadening material includes sound deadening cotton or sound deadening particles.
Example 3
Referring to fig. 1-5, a safety anti-overflow manhole cover includes a top cover 1, a supporting device is disposed below the top cover 1, two drain holes 8 are formed through the top cover 1, and a first barrier net 9 is fixed on the top of the drain holes 8. The bottom end of the top cover 1 is fixedly connected with a sewer pipe 2 at a sewer hole 8, the bottom end of the sewer pipe 2 is fixedly connected with a water collecting cover 5, the bottom end of the water collecting cover 5 is fixedly connected with a bottom cover 6, a connecting seat 7 is fixedly connected between the two water collecting covers 5, and an anti-overflow mechanism is arranged in the sewer pipe 2.
The supporting device comprises a base 4, the base 4 is circular, the top end of the base 4 is fixedly connected with a plurality of supporting columns 3, the top end of each supporting column 3 is fixedly connected with a fixing sleeve 15, a ball 16 is rotatably connected in the fixing sleeve 15, a circular sliding groove is formed in the bottom surface of the top cover 1, and the ball 16 is arranged in the sliding groove and is in rolling connection with the top cover 1. The fixing sleeve 15 and the balls 16 are made of stainless steel materials.
Prevent overflow mechanism including seting up intake antrum 11, middle chamber 10 and play water cavity 12 in end cover 6, intake antrum 11, middle chamber 10 and play water cavity 12 are from last to arranging setting gradually down and communicating, intake antrum 11 is equipped with first circulation mouth 19 with the junction of middle chamber 10, it is equipped with second circulation mouth 20 with the junction of middle chamber 10 to go out water cavity 12, be equipped with floater 13 in the middle chamber 10. The diameter of the floating ball 13 is larger than the first and second flow ports 19, 20, and the density of the floating ball 13 is smaller than that of water. And a second barrier net 14 is fixedly arranged at the top end of the water inlet cavity 11.
The roof 1 comprises a cast iron or cement cover. A plurality of cavities are formed in the top cover 1, and a silencing material is filled in each cavity.
A third block net 18 is fixedly connected in the bottom cover 6, and a shunt bulge 17 is fixedly connected at the bottom end of the connecting seat 7.
In the implementation process of the invention, the base 4 can be firstly placed into the inspection well for fixation, then the top cover 1 is placed above the base 4 and supported by the balls 16, at the moment, the top cover 1 can rotate, when the top cover 1 is pressed or impacted, certain buffering can be carried out on the pressure, so that the service life of the top cover 1 is prolonged, when in normal use, ground rainwater flows into the sewer pipe 2 from the sewer hole 8, the water enters the middle cavity 10, so that the floating ball 13 floats, the second circulation hole 20 is communicated, at the moment, the water can flow out from the water outlet cavity 12, when an overflow condition occurs, the water upwards surges from the water outlet cavity 12 to jack the floating ball 13 until the floating ball 13 is clamped at the bottom end of the first circulation hole 19, so that the sewer pipe 2 is sealed, and the overflow prevention is realized.
The anti-overflow inspection well cover can support the top cover at multiple points by arranging the supporting device, so that the inspection well cover has double protection functions, and water in a sewer can be effectively prevented from overflowing and flowing backwards to the road surface by arranging the anti-overflow mechanism under the condition of meeting the requirement of road surface drainage, so that the safety and the sanitation of the road surface are improved.
Claims (10)
1. The utility model provides a safe inspection shaft lid that prevents overflow, includes top cap (1), its characterized in that, the below of top cap (1) is equipped with strutting arrangement, runs through on top cap (1) and has seted up two water holes (8) down, and the bottom of top cap (1) is located water hole (8) down fixed connection downcomer (2), and the bottom fixed connection of downcomer (2) gathers water cover (5), and the bottom fixed connection end cover (6) of gathering water cover (5), fixed connection connecting seat (7) between two cover (5) of gathering water, be equipped with overflow prevention mechanism in downcomer (2).
2. The inspection well cover with the safety function and the overflow prevention function according to claim 1, wherein the supporting device comprises a base (4), the base (4) is circular, the top end of the base (4) is fixedly connected with a plurality of supporting columns (3), the top end of each supporting column (3) is fixedly connected with a fixing sleeve (15), a ball (16) is rotatably connected in the fixing sleeve (15), a circular sliding groove is formed in the bottom surface of the top cover (1), and the ball (16) is arranged in the sliding groove and is in rolling connection with the top cover (1).
3. The safety anti-overflow inspection well cover according to claim 1, characterized in that the fixing sleeve (15) and the balls (16) are made of stainless steel material.
4. The inspection well cover of safe anti-overflow of claim 1, characterized in that, the anti-overflow mechanism includes water inlet chamber (11), middle chamber (10) and play water cavity (12) of seting up in end cover (6), water inlet chamber (11), middle chamber (10) and play water cavity (12) are from last to arranging in proper order and communicate down, the junction of water inlet chamber (11) and middle chamber (10) is equipped with first circulation mouth (19), it is equipped with second circulation mouth (20) to go out the junction of water cavity (12) and middle chamber (10), be equipped with floater (13) in middle chamber (10).
5. The safety overflow-proof manhole cover according to claim 4, wherein the diameter of the floating ball (13) is greater than the first (19) and second (20) through openings and the density of the floating ball (13) is less than the density of water.
6. The safety overflow-proof inspection well cover according to claim 1, characterized in that a second barrier net (14) is fixedly arranged at the top end of the water inlet cavity (11).
7. The safety anti-overflow inspection well cover according to claim 1, characterized in that a first barrier net (9) is fixed on the top of the inside of the drain hole (8).
8. The safety overflow-proof inspection well cover is characterized in that a third barrier net (18) is fixedly connected in the bottom cover (6), and a shunt bulge (17) is fixedly connected at the bottom end of the connecting seat (7).
9. Safety overflow-proof manhole cover according to claim 1, wherein the cover (1) comprises a cast iron cover or a cement cover.
10. The safety anti-overflow inspection well cover is characterized in that a plurality of cavities are formed in the top cover (1), and each cavity is filled with a sound attenuation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213668.XA CN111501977B (en) | 2020-03-24 | 2020-03-24 | Safe anti-overflow inspection shaft lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213668.XA CN111501977B (en) | 2020-03-24 | 2020-03-24 | Safe anti-overflow inspection shaft lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111501977A true CN111501977A (en) | 2020-08-07 |
| CN111501977B CN111501977B (en) | 2021-06-01 |
Family
ID=71869034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010213668.XA Expired - Fee Related CN111501977B (en) | 2020-03-24 | 2020-03-24 | Safe anti-overflow inspection shaft lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501977B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664240A (en) * | 2020-12-23 | 2021-04-16 | 南京康泰建筑灌浆科技有限公司 | Tunnel percolating water administers device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221613Y (en) * | 1994-07-01 | 1996-03-06 | 常胜利 | Overflow-proof odour seal |
| DE29516691U1 (en) * | 1995-10-23 | 1996-05-23 | Jacobsen Horst Dipl Ing | Cover for channels, pits and other floor openings |
| DE202005015356U1 (en) * | 2005-09-21 | 2005-12-08 | Ehd Eisenhammer Dresden Gmbh & Co. Kg | Street cover hatch with air vent closed in the presence of rising water by ball float closure |
| CN102691317A (en) * | 2012-06-19 | 2012-09-26 | 柳州博泽科技有限公司 | Inspection well cover having functions of vibration attenuation and sound attenuation |
| CN206128138U (en) * | 2016-10-28 | 2017-04-26 | 浙江恒力建设有限公司 | Manhole cover assembly |
| CN107587527A (en) * | 2017-11-03 | 2018-01-16 | 成都易信达科技股份有限公司 | A kind of reinforced Waterproof well cover |
| CN208733680U (en) * | 2018-07-16 | 2019-04-12 | 山东和晟达机械科技有限公司 | A kind of power plant's inspection shaft keeps away smelly well lid |
-
2020
- 2020-03-24 CN CN202010213668.XA patent/CN111501977B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221613Y (en) * | 1994-07-01 | 1996-03-06 | 常胜利 | Overflow-proof odour seal |
| DE29516691U1 (en) * | 1995-10-23 | 1996-05-23 | Jacobsen Horst Dipl Ing | Cover for channels, pits and other floor openings |
| DE202005015356U1 (en) * | 2005-09-21 | 2005-12-08 | Ehd Eisenhammer Dresden Gmbh & Co. Kg | Street cover hatch with air vent closed in the presence of rising water by ball float closure |
| CN102691317A (en) * | 2012-06-19 | 2012-09-26 | 柳州博泽科技有限公司 | Inspection well cover having functions of vibration attenuation and sound attenuation |
| CN206128138U (en) * | 2016-10-28 | 2017-04-26 | 浙江恒力建设有限公司 | Manhole cover assembly |
| CN107587527A (en) * | 2017-11-03 | 2018-01-16 | 成都易信达科技股份有限公司 | A kind of reinforced Waterproof well cover |
| CN208733680U (en) * | 2018-07-16 | 2019-04-12 | 山东和晟达机械科技有限公司 | A kind of power plant's inspection shaft keeps away smelly well lid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664240A (en) * | 2020-12-23 | 2021-04-16 | 南京康泰建筑灌浆科技有限公司 | Tunnel percolating water administers device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111501977B (en) | 2021-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110965631A (en) | Deep tunnel drainage shaft with energy dissipation function | |
| KR101224277B1 (en) | Keeping treatment system of primary stage rainwater for separation seeage and valleywater using the water-storage tank | |
| CN108915074B (en) | Deodorant well lid | |
| CN111501977B (en) | Safe anti-overflow inspection shaft lid | |
| CN215290525U (en) | Confluence drainage inspection shaft with deodorant anti-return function | |
| KR100605037B1 (en) | Gathering drainage box earth sand inflow shutoff apparatus | |
| CN210117787U (en) | Underground garage drainage system | |
| CN100362176C (en) | Sealed drainage appts. preventing counterflow | |
| CN208870158U (en) | A kind of section dirty overflow well of confluence of rainwater and sewage irrigation canals and ditches | |
| CN112411706A (en) | Dirty separator of rain and dirt and dirty piece-rate system of rain | |
| CN112160399A (en) | Sponge city large and small rainwater diversion and drainage device and construction method thereof | |
| CN219732241U (en) | Device capable of preventing liquid and gas from flowing backwards | |
| KR101007104B1 (en) | Apparatus for non-powered auto washing of sewage pipe | |
| CN219863196U (en) | Anti-backflow sewage draining mechanism | |
| KR200381745Y1 (en) | Gathering drainage box earth sand inflow shutoff apparatus | |
| CN218508494U (en) | Sewage well cover for sponge urban road | |
| CN214657650U (en) | Sewage intercepting device | |
| CN212612888U (en) | Bury dirty diverging device of rain | |
| CN218322873U (en) | Municipal garden engineering is with automatic drainage inspection shaft lid | |
| CN216973671U (en) | Prevent flowing backward rainwater waterlogging drainage well structure | |
| CN112982616B (en) | Rain and sewage converging system | |
| CN215211421U (en) | Automatic municipal drainage pipe of decontaminating | |
| CN213508763U (en) | Novel city flood prevention system | |
| CN216552309U (en) | Open caisson for rural sewage pipe network distribution of rain and sewage | |
| CN217079034U (en) | Integrated backflow-preventing intercepting well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210511 Address after: 211500 No.6, Fuqian South Road, Siqiao economic Park, Longpao street, Liuhe District, Nanjing City, Jiangsu Province Applicant after: NANJING FEIYAN NEW MATERIAL TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 313100 No.65, West Jingwu Road, North Luhui Road, Changxing Economic and Technological Development Zone, Huzhou City, Zhejiang Province Applicant before: Changxing Senyang road facilities Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |