CN215888149U - Water diversion structure of hydraulic and hydroelectric engineering - Google Patents
Water diversion structure of hydraulic and hydroelectric engineering Download PDFInfo
- Publication number
- CN215888149U CN215888149U CN202121205515.7U CN202121205515U CN215888149U CN 215888149 U CN215888149 U CN 215888149U CN 202121205515 U CN202121205515 U CN 202121205515U CN 215888149 U CN215888149 U CN 215888149U
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- water
- water guide
- shell
- impeller
- diversion
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 331
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 239000010802 sludge Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000007667 floating Methods 0.000 description 10
- 208000034699 Vitreous floaters Diseases 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of water conservancy and hydropower, in particular to a water diversion structure of water conservancy and hydropower engineering, which comprises a shell, a motor, a filter basket, a scraper blade, a water diversion impeller and a water diversion assembly, wherein the motor is arranged on the shell; a water diversion groove is formed in the center of one end of the shell; the water guide assembly is positioned at the other end inside the shell; the water guide wave wheel is positioned at the upper end inside the shell between the water guide component and the water guide groove; the motor is positioned at the top of one end of the water guide assembly, which is far away from the water guide impeller, and is connected with the water guide impeller; the filtering basket is movably arranged between the motor and the water guide impeller; the scraper is positioned at the top end in the shell at the joint of the filter basket and the water guide impeller and is obliquely arranged towards one end of the water guide groove. The utility model adopts the shell, the motor, the filter basket, the scraper plate, the water guide impeller and the water guide assembly, so that the environmental water body enters the shell through the water guide groove, the water guide impeller is driven to rotate by the motor, and the water body is continuously pushed to the water guide assembly, thereby achieving the purpose of accelerating water diversion.
Description
Technical Field
The utility model relates to the technical field of water conservancy and hydropower, in particular to a water diversion structure of water conservancy and hydropower engineering.
Background
The large-scale water conservancy and hydropower diversion project is a complex system project, and all components in the system are mutually connected and restricted, so that the relationship is complicated and complicated. The coordination and control mechanism plays a decisive role in the smooth operation of the whole project.
Current water conservancy water and electricity diversion engineering all need adopt the diversion structure to carry out the diversion operation, but the most simple structure of current diversion structure, and diversion speed is slower, is unfavorable for the quick introduction of rivers, can't separate and centralized processing floater and silt in the water moreover, can't guarantee the cleanliness factor of water, is unfavorable for the use of drawing the water.
Disclosure of Invention
The utility model aims to provide a water diversion structure of water conservancy and hydropower engineering, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a water diversion structure of water conservancy and hydropower engineering comprises a shell, a motor, a filter basket, a scraper plate, a water diversion impeller and a water diversion assembly; a water diversion groove is formed in the center of one end of the shell; the water guide assembly is positioned at the other end inside the shell; the water guide wave wheel is positioned at the upper end inside the shell between the water guide component and the water guide groove; the motor is positioned at the top of one end of the water guide assembly, which is far away from the water guide impeller, is connected with the water guide impeller and is used for driving the water guide impeller to rotate so as to push the water body into the water guide assembly; the filtering basket is movably arranged between the motor and the water guide impeller, and the bottom end of the filtering basket extends into the water guide assembly; the scraping plate is positioned at the top end in the shell at the joint of the filtering basket and the water guide impeller and is obliquely arranged towards one end of the water guide groove;
the water guide assembly comprises a water baffle, a sludge discharge pump, a water guide plate and a water delivery pump; the water baffle is positioned at one end of the water guide plate and is connected with the water guide plate, the water baffle is vertically arranged under the water guide impeller, and the upper end of the water baffle is provided with a water guide net inclined towards one end of the water guide groove; the sludge pump is arranged in the shell between the water baffle and the water guide plate, and an output pipe of the sludge pump penetrates through the water baffle and extends to the outside of the shell at one end of the water guide groove; the water guide plate is in a 7-shaped structure, and the motor is arranged above the transverse section of the water guide plate; a water guide port is formed in the center of the vertical section of the water guide plate, and a filter plate inclined towards one end of the water baffle is uniformly arranged in the water guide port; the water delivery pump is arranged in the shell right below the transverse section of the water guide plate, and an output pipe of the water delivery pump penetrates through the shell and extends to the outside of the shell.
Preferably, the filtering basket is of a J-shaped structure, the bottom end of the filtering basket is positioned between the water guide net and the vertical section of the water guide plate, and the bottom end of the filtering basket is higher than the upper end of the water guide port or is flush with the upper end of the high water port.
Preferably, the scraper blade is articulated with the shell, a torsional spring is arranged on an articulated shaft of the scraper blade, and an included angle between the scraper blade and the upper side wall of the shell is 15-75 degrees.
Preferably, an opening is formed in the shell at the water guide impeller, and a sealing cover is arranged above the opening.
Preferably, the water guide impeller comprises a rotary drum, a first poking sheet and a second poking sheet; a rotating shaft penetrates through the center of the rotating drum and is connected with an output shaft of the motor through a belt; the first plectrum and the second plectrum are arranged on the rotary drum in a staggered mode at equal intervals, the first plectrum is arranged at two ends of the outer side of the rotary drum, and the second plectrum is arranged in the center of the outer side of the rotary drum.
Preferably, a spring valve plate is arranged at the pipe orifice of the output pipe of the sludge pump outside the shell and used for sealing the pipe orifice of the output pipe of the sludge pump.
Compared with the prior art, the utility model has the beneficial effects that:
1) according to the water diversion structure of the water conservancy and hydropower engineering, the shell, the motor, the filter basket, the scraper plate, the water diversion impeller and the water diversion assembly are adopted, so that environmental water enters the shell through the water diversion groove, the water diversion impeller is driven to rotate by the motor, the water is continuously pushed to the water diversion assembly, and the purpose of accelerating water diversion is achieved; the water guide component is arranged on the water guide plate, the water guide net is arranged at the upper end of the water baffle plate, and the water guide component is arranged on the water guide plate;
2) according to the water diversion structure of the water conservancy and hydropower engineering, the water deflector, the mud pump, the water guide plate and the water delivery pump form the water guide assembly, so that water can be precipitated between the water deflector and the water guide plate, and precipitated mud and sand are discharged through the mud pump; the water guide plate can be used for pumping out clean water overflowing into the inner side of the water guide plate after precipitation through the water delivery pump, and water diversion operation is carried out on the hydraulic and hydroelectric engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic side view of the water guide impeller of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a housing; 11. a sealing cover; 12. a water diversion groove; 2. a motor; 3. a filter basket; 4. a squeegee; 5. a water guide impeller; 51. a rotating drum; 52. a first shifting sheet; 53. a second poking sheet; 6. a water baffle; 61. a water conducting net; 7. a sludge discharge pump; 8. a water guide plate; 81. a water guide port; 82. filtering the plate; 9. a water delivery pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a water diversion structure of water conservancy and hydropower engineering comprises a shell 1, a motor 2, a filter basket 3, a scraper 4, a water diversion impeller 5 and a water diversion assembly; a water diversion groove 12 is arranged in the center of one end of the shell 1; the water guide assembly is positioned at the other end inside the shell 1; the water guide wave wheel 5 is positioned at the upper end inside the shell 1 between the water guide component and the water guide groove 12; the motor 2 is positioned at the top of one end of the water guide assembly, which is far away from the water guide impeller 5, is connected with the water guide impeller 5 and is used for driving the water guide impeller 5 to rotate so as to push the water body into the water guide assembly; the filtering basket 3 is movably arranged between the motor 2 and the water guide impeller 5, and the bottom end of the filtering basket 3 extends into the water guide assembly; the scraping plate 4 is positioned at the top end of the inner part of the shell 1 at the joint of the filtering basket 3 and the water guide impeller 5 and is obliquely arranged towards one end of the water guide groove 12; in this embodiment, the water level height of the water diversion is at least located on the central line of the water diversion groove 12; the lowest point of the water guide impeller 5 is lower than the central axis of the water guide groove 12, so that after environmental water enters the shell 1 through the water guide groove 12, the water is continuously pushed to the water guide assembly when the motor 2 drives the water guide impeller 5 to rotate, and the purpose of accelerating water diversion is achieved; the floating materials adhered to the water guide impeller 5 in the water diversion process can be scraped by the scraper 4 and fall into the filter basket 3 for centralized storage, so that the impurities in the water body after water diversion are reduced;
the water guide assembly comprises a water baffle 6, a sludge discharge pump 7, a water guide plate 8 and a water delivery pump 9; the water baffle 6 is positioned at one end of the water guide plate 8 and is connected with the water guide plate 8, the water baffle 6 is vertically arranged under the water guide impeller 5, and the upper end of the water baffle 6 is provided with a water guide net 61 inclined towards one end of the water guide groove 12; the sludge pump 7 is arranged in the shell 1 between the water baffle 6 and the water guide plate 8, and an output pipe of the sludge pump 7 penetrates through the water baffle 6 and extends to the outside of the shell 1 at one end of the water guide groove 12; the water guide plate 8 is in a 7-shaped structure, and the motor 2 is arranged above the transverse section of the water guide plate 8; a water guide port 81 is arranged in the center of the vertical section of the water guide plate 8, and filter plates 82 inclined towards one end of the water baffle 6 are uniformly arranged in the water guide port 81; the water delivery pump 9 is arranged in the shell 1 right below the transverse section of the water guide plate 8, and an output pipe of the water delivery pump 9 penetrates through the shell 1 and extends to the outside of the shell 1; in this embodiment, the highest point of the water baffle 6 is at least located at one fourth of the overall height of the water guide impeller 5 and lower than the central axis of the water guide impeller 5, the highest point of the water baffle 6 is higher than the highest point of the water guide groove 12, so as to ensure that after environmental water enters the housing 1 through the water guide groove 12, the environmental water can always push water through the water guide impeller 5, and avoid overflow of the filtered floating materials in the filter basket 3 caused by the water level exceeding the water baffle 6, so that in the process that the water guide impeller 5 continuously pushes the water to the water baffle 6, the floating materials in the water are isolated by the water guide net 61 and continuously move along with the water guide impeller 5, and are scraped off to enter the filter basket 3 for storage under the action of the scraper 4, so that the water stains attached to the floating materials can freely fall between the water baffle 6 and the water guide plate 8, so that the water can be precipitated between the water baffle 6 and the water guide plate 8, and regularly discharging small particle impurities such as silt and the like out of the shell 1 through a sludge discharge pump 7; the water guide port 81 arranged on the water guide plate 8 can guide the supernatant of the water body between the water baffle 6 and the water guide plate 8, and the filter plate 82 arranged obliquely can further block fine silt in the water, so that the cleanliness of the water body guided out by the water guide plate 8 is ensured, the final water body is pumped out by the water delivery pump 9, and the purpose of water guiding is achieved;
the filtering basket 3 is in a J-shaped structure, the bottom end of the filtering basket 3 is positioned between the water guide net 61 and the vertical section of the water guide plate 8, and the bottom end of the filtering basket 3 is higher than the upper end of the water guide port 81 or is flush with the upper end of the high water port; in this embodiment, the bottom end of the filtering basket 3 is higher than the upper end of the water guide port 81, so that the filtering basket 3 can collect the filtered floaters in a concentrated manner through the sunken bottom, thereby not only ensuring the quality of the water body for guiding water, but also improving the convenience for concentrated cleaning of the floaters; the bottom end of the higher filtering basket 3 can effectively reduce the contact between the water body and the collected floaters and avoid the floaters from overflowing from the filtering basket 3;
the scraper 4 is hinged with the shell 1, a torsional spring (not shown in the figure) is arranged on a hinged shaft of the scraper 4, and an included angle between the scraper 4 and the upper side wall of the shell 1 is 15-75 degrees; in this embodiment, an included angle between the scraper 4 and the upper side wall of the housing 1 is preferably 45 °, and the scraper 4 is provided with a groove, so that the water guide impeller 5 continuously extrudes a torsion spring of the scraper 4 to drive the scraper to rotate in the rotation process, the scraper 4 can scrape the floating objects on the water guide impeller 5 into the groove and drive the floating objects to automatically reset through the torsion spring, the floating objects are thrown into the filter basket 3 to be stored, and the surface cleanliness of the water guide impeller 5 is ensured;
an opening is formed in the shell 1 at the position of the water guide impeller 5, and a sealing cover 11 is arranged above the opening, so that the sealing cover 11 can contain the water guide impeller 5, the water guide impeller 5 is prevented from stably rotating in the sealing cover 11, and the phenomenon of blocking caused by environmental factors is avoided;
the water guide impeller 5 comprises a rotary drum 51, a first plectrum 52 and a second plectrum 53; a rotating shaft penetrates through the center of the rotating drum 51 and is connected with an output shaft of the motor 2 through a belt; the first plectrum 52 and the second plectrum 53 are arranged on the rotary drum 51 in an equidistant staggered manner, the first plectrum 52 is arranged at two ends of the outer side of the rotary drum 51, the second plectrum 53 is arranged at the center of the outer side of the rotary drum 51, the first plectrum 52 and the second plectrum 53 which are arranged in a staggered manner can push floating objects with different sizes and different positions in a water body along with the continuous rotation of the rotary drum 51, so that the floating objects can move to the position of the filter basket 3 along the water guide net 61 under the action of the first plectrum 52 and the second plectrum 53, and finally are scraped off from the first plectrum 52 and the second plectrum 53 by the scraper 4 and fall into the filter basket 3 for collection;
wherein, a spring valve plate (not shown in the figure) is arranged at the outlet pipe orifice of the dredge pump 7 at the outer side of the shell 1 and is used for sealing the outlet pipe orifice of the dredge pump 7; when making dredge pump 7 not start, the spring valve clack can effectively seal the 7 output tube mouths of pipe of dredge pump, avoids the water to get into among the 7 output tubes of dredge pump to make dredge pump 7 during the during operation, silt can impact the spring valve plate and make it open, realize the emission to silt.
Principle of operation
When the water diversion structure of the water conservancy and hydropower engineering is used, firstly, the device is arranged near a water source, so that environmental water can be introduced into the shell 1 through the water diversion groove 12 on the shell 1; the water guide impeller 5 is driven to rotate by the motor 2, the water body is continuously pushed to the water guide assembly by the first rotating shifting piece 52 and the second rotating shifting piece 53, the water body is pushed to the water guide net 61 and filtered by the water guide net 61 to enter the space between the water baffle 6 and the water guide plate 8 for precipitation, precipitated silt can be accumulated between the water baffle 6 and the water guide plate 8, supernatant liquid can enter the inner side of the water guide plate 8 through a water guide opening 81 in the water guide plate 8, a filter plate 82 obliquely arranged in the water guide opening 81 can further block fine silt in water, the cleanliness of the water body guided out by the water guide plate 8 is ensured, and finally filtered water can be pumped out through the water delivery pump 9, so that the purpose of water diversion of water conservancy and hydropower engineering is achieved; with the continuous rotation of the water guide impeller 5, the floating objects adhered to the water guide impeller 5 can be scraped by the scraper 4 and thrown into the filter basket 3 for centralized storage, so that the impurities in the water body after water diversion are reduced; the sludge pump 7 between the water baffle 6 and the water guide plate 8 can be opened regularly to discharge the precipitated silt and other small particle impurities out of the shell 1, so that the phenomenon that the silt is too much and cannot be precipitated between the water baffle 6 and the water guide plate 8 is avoided.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A water diversion structure of a water conservancy and hydropower project is characterized by comprising a shell (1), a motor (2), a filtering basket (3), a scraping plate (4), a water diversion impeller (5) and a water diversion assembly; a water diversion groove (12) is formed in the center of one end of the shell (1); the water guide assembly is positioned at the other end inside the shell (1); the water guide impeller (5) is positioned at the upper end inside the shell (1) between the water guide assembly and the water guide groove (12); the motor (2) is positioned at the top of one end of the water guide assembly, which is far away from the water guide impeller (5), is connected with the water guide impeller (5) and is used for driving the water guide impeller (5) to rotate so as to push the water body into the water guide assembly; the filtering basket (3) is movably arranged between the motor (2) and the water guide impeller (5), and the bottom end of the filtering basket (3) extends into the water guide assembly; the scraper (4) is positioned at the top end in the shell (1) at the joint of the filter basket (3) and the water guide impeller (5) and is obliquely arranged towards one end of the water guide groove (12);
the water guide assembly comprises a water baffle (6), a sludge discharge pump (7), a water guide plate (8) and a water delivery pump (9); the water baffle (6) is positioned at one end of the water guide plate (8) and is connected with the water guide plate (8), the water baffle (6) is vertically arranged under the water guide impeller (5), and the upper end of the water baffle (6) is provided with a water guide net (61) inclined towards one end of the water guide groove (12); the sludge pump (7) is arranged in the shell (1) between the water baffle (6) and the water guide plate (8), and an output pipe of the sludge pump (7) penetrates through the water baffle (6) and extends to the outside of the shell (1) at one end of the water guide groove (12); the water guide plate (8) is of a 7-shaped structure, and the motor (2) is arranged above the transverse section of the water guide plate (8); a water guide port (81) is formed in the center of the vertical section of the water guide plate (8), and filter plates (82) inclined towards one end of the water baffle plate (6) are uniformly arranged in the water guide port (81); the water delivery pump (9) is arranged in the shell (1) right below the transverse section of the water guide plate (8), and an output pipe of the water delivery pump (9) penetrates through the shell (1) and extends to the outside of the shell (1).
2. The water diversion structure of water conservancy and hydropower engineering according to claim 1, wherein the filtering basket (3) is in a J-shaped structure, the bottom end of the filtering basket (3) is positioned between the water guide net (61) and the vertical section of the water guide plate (8), and the bottom end of the filtering basket (3) is higher than the upper end of the water guide opening (81) or is flush with the upper end of the high water opening.
3. The water diversion structure of water conservancy and hydropower engineering according to claim 1, wherein the scraper (4) is hinged to the housing (1), a torsion spring is arranged on a hinged shaft of the scraper (4), and an included angle between the scraper (4) and the upper side wall of the housing (1) is 15-75 degrees.
4. The water diversion structure of water conservancy and hydropower engineering according to claim 1, wherein an opening is formed in the shell (1) at the water diversion impeller (5), and a sealing cover (11) is arranged above the opening.
5. The water diversion structure of water conservancy and hydropower engineering according to claim 4, wherein the water diversion impeller (5) comprises a rotary drum (51), a first poking sheet (52) and a second poking sheet (53); a rotating shaft penetrates through the center of the rotating drum (51), and the rotating shaft is connected with an output shaft of the motor (2) through a belt; the first poking sheets (52) and the second poking sheets (53) are arranged on the rotary drum (51) in an equidistant and staggered mode, the first poking sheets (52) are arranged at two ends of the outer side of the rotary drum (51), and the second poking sheets (53) are arranged in the center of the outer side of the rotary drum (51).
6. The water diversion structure of water conservancy and hydropower engineering according to claim 1, wherein a spring valve plate is arranged at the outlet pipe orifice of the dredge pump (7) outside the shell (1) and used for sealing the outlet pipe orifice of the dredge pump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121205515.7U CN215888149U (en) | 2021-06-01 | 2021-06-01 | Water diversion structure of hydraulic and hydroelectric engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121205515.7U CN215888149U (en) | 2021-06-01 | 2021-06-01 | Water diversion structure of hydraulic and hydroelectric engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215888149U true CN215888149U (en) | 2022-02-22 |
Family
ID=80561072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121205515.7U Expired - Fee Related CN215888149U (en) | 2021-06-01 | 2021-06-01 | Water diversion structure of hydraulic and hydroelectric engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215888149U (en) |
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2021
- 2021-06-01 CN CN202121205515.7U patent/CN215888149U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220222 |