CN214457396U - Domestic water purifier based on energy-concerving and environment-protective technique - Google Patents
Domestic water purifier based on energy-concerving and environment-protective technique Download PDFInfo
- Publication number
- CN214457396U CN214457396U CN202120082033.0U CN202120082033U CN214457396U CN 214457396 U CN214457396 U CN 214457396U CN 202120082033 U CN202120082033 U CN 202120082033U CN 214457396 U CN214457396 U CN 214457396U
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- Prior art keywords
- sewage
- bottom end
- barrel
- cover
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000010865 sewage Substances 0.000 claims description 64
- 230000001954 sterilising effect Effects 0.000 claims description 22
- 238000000746 purification Methods 0.000 claims description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 abstract description 13
- 230000000249 desinfective effect Effects 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 244000045947 parasite Species 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003599 detergent Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a domestic water purifier based on energy-concerving and environment-protective technique, including box, slop pail and outlet pipe, the one end of box is provided with the side door, the inside top of box is provided with the slop pail, the inside of slop pail is provided with clean mechanism, one side of first water pipe sets up in filtration, one side of second water pipe is provided with the mechanism of disinfecting, outlet pipe one side extends to the opposite side of box. The utility model discloses an internally mounted of bilge tank has the brush, and when operating personnel need clean the inner wall of bilge tank, the valve of closing first water pipe department earlier, add proper amount water and sanitizer in the inside of bilge tank after that, start servo motor after that, servo motor drives and rotates the post and rotate, rotates the post and makes the brush clean on the inner wall of bilge tank through the spliced pole to this domestic water purifier has been realized the cleanliness factor to bilge tank wall.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a domestic water purifier based on energy-concerving and environment-protective technique.
Background
Along with the rapid development of social economy, the living standard of people is also improved continuously, more and more waste water is generated in the life of people, the direct discharge can cause pollution to the environment and waste water resources, the domestic water purification device can treat the waste water generated in the life of people, and the waste water is purified so as to be recycled;
the conventional domestic water purification apparatus generates a large amount of dirt on the inner wall of the slop pail of the domestic water purification apparatus after being used for a long time, and is difficult to clean, so that it is required to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a domestic water purifier based on energy-concerving and environment-protective technique to it is not convenient for carry out clear problem to the slop pail wall to propose this domestic water purifier in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a domestic water purification device based on an energy-saving and environment-friendly technology comprises a box body, a sewage bucket and a water outlet pipe, wherein one end of the box body is provided with a side door, the top end inside the box body is provided with the sewage bucket, the inside of the sewage bucket is provided with a cleaning mechanism, the cleaning mechanism comprises a servo motor, a rotating column, a brush, a fixed plate, a mounting plate, a spring telescopic column and a connecting column, the servo motor is arranged at the top end of the sewage bucket, the bottom end of the servo motor is provided with the rotating column, the bottom end of the rotating column extends into the inside of the sewage bucket, one side of the rotating column is fixed with the connecting column, one side of the connecting column is fixed with the mounting plate, the inside of the mounting plate is provided with the spring telescopic column, one side of the spring telescopic column is provided with the fixed plate, one side of the fixed plate is fixed with the brush, the top end of one side of the sewage bucket is provided with a sewage pipe, the utility model discloses a sewage treatment device, including sewage bucket, sewage pipe, filtering structure, filter screen, sewage bucket, one side of sewage pipe extends to one side of box, the bottom of sewage bucket one side is provided with the sewage discharge pipe, sewage discharge pipe one side extends to one side of box, the inside bottom of sewage bucket is provided with the filter screen, the bottom of sewage bucket is provided with first water pipe, one side of first water pipe sets up in filtering structure, filtering structure's bottom is provided with the second water pipe, one side of second water pipe is provided with the mechanism of disinfecting, the one side of the mechanism of disinfecting is provided with the outlet pipe, outlet pipe one side extends to the opposite side of box.
Preferably, the spring telescopic columns are arranged inside the mounting plate and distributed at equal intervals.
Preferably, the sterilization mechanism comprises a barrel cover, a lamp holder, an ultraviolet lamp, a transparent protective cover and a sterilization barrel, one side of the sterilization barrel is fixedly connected with one side of the second water pipe, the barrel cover is arranged at the top end of the sterilization barrel, the transparent protective cover is fixed at the bottom end of the barrel cover, the lamp holder is arranged inside the transparent protective cover, the top end of the lamp holder is fixedly connected with the bottom end of the barrel cover, and the ultraviolet lamp is arranged at the bottom end of the lamp holder.
Preferably, filtration includes installation lid, fixed head, filter core, filters jar, mount pad and spring buckle, filter jar one side and one side fixed connection of first water pipe, the inside bottom of filtering the jar is provided with the mount pad, the top of mount pad is provided with the filter core, the both sides of filtering the tank bottom all are provided with the spring buckle, spring buckle one side extends to the inside of mount pad, the top of filtering the jar is provided with the installation lid, the inside bottom of installation lid is provided with the fixed head.
Preferably, the inside of installation lid is provided with the internal thread, the surface of filtering jar is provided with the external screw thread, the installation lid is connected through the screw thread with filtering the jar.
Preferably, four groups of spring buckles are arranged at the bottom end inside the filtering tank, and the spring buckles are distributed annularly.
Compared with the prior art, the beneficial effects of the utility model are that: the domestic water purification device based on the energy-saving and environment-friendly technology not only realizes the cleanness of the domestic water purification device on the wall of the sewage barrel, realizes the convenience of replacement of the filter element of the domestic water purification device, but also realizes the sterilization of the domestic water purification device on water;
(1) the hairbrush is arranged in the sewage bucket, when an operator needs to clean the inner wall of the sewage bucket, the valve at the first water pipe is closed, then a proper amount of water and detergent are added into the sewage bucket, then the servo motor is started, the servo motor drives the rotating column to rotate, and the rotating column enables the hairbrush to clean the inner wall of the sewage bucket through the connecting column, so that the cleanness of the domestic water purifying device on the wall of the sewage bucket is realized;
(2) a plurality of groups of spring telescopic columns are arranged between the fixed plate and the mounting plate, and play a certain role in buffering, so that the problem that the whole device is damaged due to the fact that the brush is tightly attached to the inner wall of the sewage bucket during cleaning can be prevented;
(3) when the filter element needs to be replaced after the domestic water purification device is used for a long time, an operator manually rotates the mounting cover firstly, the mounting cover is taken down from the filter tank, then the filter element is taken out from the filter tank for replacement, during mounting, the mounting seat below the filter element is clamped into the groove at the bottom of the filter tank, the spring buckles at the periphery of the groove can clamp the mounting seat for preliminary fixing, then the mounting cover is mounted on the filter tank through threads, the fixing head at the bottom of the mounting cover can further fix the filter element by abutting against the filter element, and a sealing ring can be additionally arranged at the joint of the mounting cover and the filter tank to prevent liquid leakage, so that convenience in replacement of the filter element of the domestic water purification device is realized;
(4) ultraviolet lamp has been installed through the bottom of bung, and the water after the filtration enters into the bucket of disinfecting back, and the ultraviolet lamp of top shines water, can kill various bacterium and parasites etc. in the aquatic rapidly, and ultraviolet lamp's externally mounted has transparent protection casing, can prevent that water infiltration from influencing ultraviolet lamp's use to realized the bactericidal nature of this domestic water purifier to water.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;
FIG. 4 is a schematic front sectional view of the filter structure of the present invention;
fig. 5 is a schematic view of the front cross-sectional structure of the sterilization mechanism of the present invention.
In the figure: 1. a box body; 2. a sewage discharge pipe; 3. a cleaning mechanism; 301. a servo motor; 302. rotating the column; 303. a brush; 304. a fixing plate; 305. mounting a plate; 306. a spring telescopic column; 307. connecting columns; 4. a sewage pipe; 5. a sewage bucket; 6. a filter screen; 7. a water outlet pipe; 8. a sterilization mechanism; 801. a barrel cover; 802. a lamp socket; 803. an ultraviolet lamp; 804. a transparent protective cover; 805. a sterilizing barrel; 9. a second water pipe; 10. a filter structure; 1001. installing a cover; 1002. a fixed head; 1003. a filter element; 1004. a filter tank; 1005. a mounting seat; 1006. a spring buckle; 11. a first water pipe; 12. a side door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a domestic water purification device based on an energy-saving and environment-friendly technology comprises a box body 1, a sewage bucket 5 and a water outlet pipe 7, wherein one end of the box body 1 is provided with a side door 12, the top end inside the box body 1 is provided with the sewage bucket 5, the inside of the sewage bucket 5 is provided with a cleaning mechanism 3, the cleaning mechanism 3 comprises a servo motor 301, a rotating column 302, a brush 303, a fixing plate 304, a mounting plate 305, a spring telescopic column 306 and a connecting column 307, the servo motor 301 is arranged at the top end of the sewage bucket 5, the type of the servo motor 301 can be HD-EA-370, the input end of the servo motor 301 is electrically connected with the output end of a control panel, the bottom end of the servo motor 301 is provided with the rotating column 302, the bottom end of the rotating column 302 extends into the sewage bucket 5, one side of the rotating column 302 is fixedly provided with the connecting column 307, one side of the connecting column 307 is fixedly provided with the mounting plate 305, the spring telescopic column 306 is arranged inside the mounting plate 305, a fixing plate 304 is arranged on one side of the spring telescopic columns 306, a brush 303 is fixed on one side of the fixing plate 304, a plurality of spring telescopic columns 306 are arranged inside the mounting plate 305, and the spring telescopic columns 306 are distributed at equal intervals;
specifically, as shown in fig. 1 and 3, when the mechanism is used, the valve at the first water pipe 11 is closed, then a proper amount of water and detergent are added into the interior of the sewage bucket 5, then the servo motor 301 is started, the servo motor 301 drives the rotating column 302 to rotate, the rotating column 302 enables the brush 303 to clean the inner wall of the sewage bucket 5 through the connecting column 307, a plurality of groups of spring telescopic columns 306 are installed between the fixed plate 304 and the mounting plate 305, and the plurality of groups of spring telescopic columns 306 play a role in buffering, so that the brush 303 is prevented from being attached to the inner wall of the sewage bucket 5 too tightly during cleaning, and the whole device is prevented from being damaged;
the top end of one side of the sewage bucket 5 is provided with a sewage pipe 4, one side of the sewage pipe 4 extends to one side of the box body 1, the bottom end of one side of the sewage bucket 5 is provided with a sewage discharge pipe 2, one side of the sewage discharge pipe 2 extends to one side of the box body 1, the bottom end of the interior of the sewage bucket 5 is provided with a filter screen 6, the bottom end of the sewage bucket 5 is provided with a first water pipe 11, one side of the first water pipe 11 is arranged on a filter structure 10, the filter structure 10 comprises a mounting cover 1001, a fixing head 1002, a filter element 1003, a filter tank 1004, a mounting seat 1005 and a spring buckle 1006, one side of the filter tank 1004 is fixedly connected with one side of the first water pipe 11, the bottom end of the interior of the filter tank 1004 is provided with the mounting seat 1005, the top end of the mounting seat 1005 is provided with the filter element 1003, both sides of the bottom end of the filter tank 1004 are provided with the spring buckle 1006, one side of the spring buckle 1006 extends to the interior of the mounting seat 1005, the top end of the filter tank 1004 is provided with the mounting cover 1001, the bottom end inside the mounting cover 1001 is provided with a fixing head 1002, the inside of the mounting cover 1001 is provided with internal threads, the surface of the filter tank 1004 is provided with external threads, the mounting cover 1001 is connected with the filter tank 1004 through threads, four groups of spring buckles 1006 are arranged at the bottom end inside the filter tank 1004, and the spring buckles 1006 are distributed annularly;
specifically, as shown in fig. 1 and 4, when using this structure, an operator manually rotates the mounting cover 1001 to remove the mounting cover 1001 from the filter tank 1004, and then removes the filter element 1003 from the filter tank 1004 for replacement, when mounting, the mounting base 1005 below the filter element 1003 is clamped into the bottom groove of the filter tank 1004, the spring buckle 1006 around the groove can clamp the mounting base 1005 for preliminary fixing, and then mounts the mounting cover 1001 on the filter tank 1004 through a screw thread, the fixing head 1002 at the bottom of the mounting cover 1001 can further fix the filter element 1003 against it, and a sealing ring can be installed at the connection between the mounting cover 1001 and the filter tank 1004 to prevent liquid leakage;
a second water pipe 9 is arranged at the bottom end of the filtering structure 10, a sterilization mechanism 8 is arranged at one side of the second water pipe 9, the sterilization mechanism 8 comprises a barrel cover 801, a lamp holder 802, an ultraviolet lamp 803, a transparent protective cover 804 and a sterilization barrel 805, one side of the sterilization barrel 805 is fixedly connected with one side of the second water pipe 9, the top end of the sterilization barrel 805 is provided with the barrel cover 801, the bottom end of the barrel cover 801 is fixedly provided with the transparent protective cover 804, the lamp holder 802 is arranged inside the transparent protective cover 804, the top end of the lamp holder 802 is fixedly connected with the bottom end of the barrel cover 801, the bottom end of the lamp holder 802 is provided with the ultraviolet lamp 803, the type of the ultraviolet lamp 803 can be ZW8S15W-Z287, the input end of the ultraviolet lamp 803 is electrically connected with the output end of the control panel, one side of the sterilization mechanism 8 is provided with a water outlet pipe 7, and one side of the water outlet pipe 7 extends to the other side of the box body 1;
specifically, as shown in fig. 1 and 5, when the mechanism is used, the ultraviolet lamp 803 irradiates water to rapidly kill various bacteria, parasites, and the like in the water, and the transparent protective cover 804 is attached to the outside of the ultraviolet lamp 803 to prevent water from penetrating and affecting the use of the ultraviolet lamp 803.
The working principle is as follows: when the domestic water purifying device is used, firstly, the domestic water purifying device is externally connected with a power supply, sewage enters the interior of a sewage barrel 5 from a sewage pipe 4 and is primarily purified when passing through a filter screen 6 in the interior of the sewage barrel 5, the primarily purified water enters a filter tank 1004 through a first water pipe 11 and is further purified through a filter element 1003, the purified water enters a sterilizing barrel 805 through a second water pipe 9, an ultraviolet lamp 803 above the sterilizing barrel irradiates the water to quickly kill various bacteria, parasites and the like in the water, a transparent protective cover 804 is arranged outside the ultraviolet lamp 803 to prevent the water from permeating to influence the use of the ultraviolet lamp 803, and the purified and sterilized water flows out through a water outlet pipe 7 for use;
afterwards, after the domestic water purification device is used for a long time, when the inner wall of the sewage barrel 5 needs to be cleaned, the valve at the position of the first water pipe 11 is closed firstly, then a proper amount of water and a cleaning agent are added into the sewage barrel 5, then the servo motor 301 is started, the servo motor 301 drives the rotating column 302 to rotate, the rotating column 302 enables the brush 303 to clean the inner wall of the sewage barrel 5 through the connecting column 307, a plurality of groups of spring telescopic columns 306 are installed between the fixed plate 304 and the mounting plate 305, and the plurality of groups of spring telescopic columns 306 play a certain buffering role, so that the problem that the whole device is damaged due to the fact that the brush 303 is tightly attached to the inner wall of the sewage barrel 5 during cleaning can be prevented;
finally, when the filter element 1003 needs to be replaced after the domestic water purification device is used for a long time, an operator manually rotates the mounting cover 1001 first, the mounting cover 1001 is taken down from the filter tank 1004, then the filter element 1003 is taken out from the filter tank 1004 to be replaced, during installation, the mounting seat 1005 below the filter element 1003 is clamped into a groove in the bottom of the filter tank 1004, the spring buckles 1006 on the periphery of the groove can clamp the mounting seat 1005 to be primarily fixed, then the mounting cover 1001 is mounted on the filter tank 1004 through threads, the fixing head 1002 at the bottom of the mounting cover 1001 can further fix the filter element 1003 against the filter element, a sealing ring can be additionally mounted at the joint of the mounting cover 1001 and the filter tank 1004 to prevent liquid leakage, and finally the whole using process of the domestic water purification device is completed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a domestic water purifier based on energy-concerving and environment-protective technique, includes box (1), slop pail (5) and outlet pipe (7), its characterized in that: one end of the box body (1) is provided with a side door (12), the top end inside the box body (1) is provided with a sewage barrel (5), the inside of the sewage barrel (5) is provided with a cleaning mechanism (3), the cleaning mechanism (3) comprises a servo motor (301), a rotating column (302), a brush (303), a fixed plate (304), a mounting plate (305), a spring telescopic column (306) and a connecting column (307), the servo motor (301) is arranged on the top end of the sewage barrel (5), the bottom end of the servo motor (301) is provided with the rotating column (302), the bottom end of the rotating column (302) extends into the inside of the sewage barrel (5), one side of the rotating column (302) is fixed with the connecting column (307), one side of the connecting column (307) is fixed with the mounting plate (305), the spring telescopic column (306) is arranged inside the mounting plate (305), one side of the spring telescopic column (306) is provided with a fixed plate (304), one side of the fixed plate (304) is fixed with a brush (303), the top end of one side of the sewage bucket (5) is provided with a sewage pipe (4), one side of the sewage pipe (4) extends to one side of the box body (1), the bottom end of one side of the sewage bucket (5) is provided with a sewage discharge pipe (2), one side of the sewage discharge pipe (2) extends to one side of the box body (1), the bottom end inside the sewage bucket (5) is provided with a filter screen (6), the bottom end of the sewage bucket (5) is provided with a first water pipe (11), one side of the first water pipe (11) is arranged on the filter structure (10), the bottom end of the filter structure (10) is provided with a second water pipe (9), one side of the second water pipe (9) is provided with a sterilization mechanism (8), one side of the sterilization mechanism (8) is provided with a water outlet pipe (7), one side of the water outlet pipe (7) extends to the other side of the box body (1).
2. The domestic water purification device based on the energy-saving and environment-friendly technology as claimed in claim 1, wherein: the spring telescopic columns (306) are arranged inside the mounting plate (305) and distributed at equal intervals.
3. The domestic water purification device based on the energy-saving and environment-friendly technology as claimed in claim 1, wherein: the sterilizing mechanism (8) comprises a barrel cover (801), a lamp holder (802), an ultraviolet lamp (803), a transparent protective cover (804) and a sterilizing barrel (805), one side of the sterilizing barrel (805) is fixedly connected with one side of a second water pipe (9), the top end of the sterilizing barrel (805) is provided with the barrel cover (801), the bottom end of the barrel cover (801) is fixedly provided with the transparent protective cover (804), the lamp holder (802) is arranged inside the transparent protective cover (804), the top end of the lamp holder (802) is fixedly connected with the bottom end of the barrel cover (801), and the bottom end of the lamp holder (802) is provided with the ultraviolet lamp (803).
4. The domestic water purification device based on the energy-saving and environment-friendly technology as claimed in claim 1, wherein: the filter structure (10) comprises a mounting cover (1001), a fixing head (1002), a filter element (1003), a filter tank (1004), a mounting seat (1005) and a spring buckle (1006), one side of the filter tank (1004) is fixedly connected with one side of a first water pipe (11), the bottom end of the interior of the filter tank (1004) is provided with the mounting seat (1005), the top end of the mounting seat (1005) is provided with the filter element (1003), the two sides of the bottom end of the filter tank (1004) are provided with the spring buckle (1006), one side of the spring buckle (1006) extends to the interior of the mounting seat (1005), the top end of the filter tank (1004) is provided with the mounting cover (1001), and the bottom end of the interior of the mounting cover (1001) is provided with the fixing head (1002).
5. The domestic water purification device based on the energy-saving and environment-friendly technology as claimed in claim 4, wherein: the mounting cover (1001) is internally provided with internal threads, the surface of the filter tank (1004) is provided with external threads, and the mounting cover (1001) is connected with the filter tank (1004) through threads.
6. The domestic water purification device based on the energy-saving and environment-friendly technology as claimed in claim 4, wherein: four groups of spring buckles (1006) are arranged at the bottom end inside the filter tank (1004), and the spring buckles (1006) are distributed annularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120082033.0U CN214457396U (en) | 2021-01-13 | 2021-01-13 | Domestic water purifier based on energy-concerving and environment-protective technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120082033.0U CN214457396U (en) | 2021-01-13 | 2021-01-13 | Domestic water purifier based on energy-concerving and environment-protective technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214457396U true CN214457396U (en) | 2021-10-22 |
Family
ID=78139336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120082033.0U Expired - Fee Related CN214457396U (en) | 2021-01-13 | 2021-01-13 | Domestic water purifier based on energy-concerving and environment-protective technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214457396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368796A (en) * | 2022-01-14 | 2022-04-19 | 芜湖职业技术学院 | Sewage treatment plant for municipal works |
-
2021
- 2021-01-13 CN CN202120082033.0U patent/CN214457396U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368796A (en) * | 2022-01-14 | 2022-04-19 | 芜湖职业技术学院 | Sewage treatment plant for municipal works |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |