CN220425212U - Sewage treatment detection device - Google Patents
Sewage treatment detection device Download PDFInfo
- Publication number
- CN220425212U CN220425212U CN202321925752.XU CN202321925752U CN220425212U CN 220425212 U CN220425212 U CN 220425212U CN 202321925752 U CN202321925752 U CN 202321925752U CN 220425212 U CN220425212 U CN 220425212U
- Authority
- CN
- China
- Prior art keywords
- fixed
- detection
- sewage treatment
- detection box
- frame
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 239000010865 sewage Substances 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007790 scraping Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000709661 Enterovirus Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a sewage treatment detection device, which relates to the technical field of sewage treatment and comprises a detection box, wherein the top of the detection box is provided with a detection groove and a cleaning groove, the bottom end of the detection groove is conical, the conical sharp corner end is a second drainage pipe, an electromagnetic valve is arranged in the second drainage pipe, the top of one side of the detection box is fixedly provided with a water inlet pipe communicated with the cleaning groove, and the bottom of one side of the detection box is fixedly provided with a first drainage pipe communicated with the cleaning groove; the lifting assembly is arranged at the top of the detection box, the whole conversion assembly is moved upwards through the sewage treatment lifting assembly, the conversion assembly controls the two stirring mechanisms to carry out position exchange, the lifting assembly resets the conversion assembly, an exogenous water source enters from the water inlet pipe and then is discharged from the first water outlet pipe, the ultrasonic generator generates ultrasonic waves to clean the stirring mechanisms, and the other stirring mechanism continuously works, so that detection work is not influenced.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment detection device.
Background
Domestic sewage is waste water discharged in daily life of residents, and mainly originates from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters (such as proteins, carbohydrates, fat, urea, ammonia nitrogen and the like) and a large number of pathogenic microorganisms (such as parasitic ova, enteroviruses and the like), and the organic matters existing in the domestic sewage are extremely unstable and are easy to decay to generate malodor. Bacteria and pathogens are propagated in large quantities by taking organisms in domestic sewage as nutrients, and infectious diseases are easy to spread and prevail. Therefore, the domestic sewage must be treated before being discharged.
But current domestic sewage treatment mechanism, after the processing is accomplished, only can detect after need going on the clean detection component, can influence whole detection efficiency like this.
Disclosure of Invention
The utility model aims to provide a domestic sewage treatment mechanism which can be used for detecting after cleaning a detection component after treatment is completed, so that the whole detection efficiency is affected.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a sewage treatment detection device, which comprises a detection box, wherein the top of the detection box is provided with a detection groove and a cleaning groove, the bottom end of the detection groove is conical, the conical sharp corner end is a second drainage pipe, an electromagnetic valve is arranged in the second drainage pipe, the top of one side of the detection box is fixedly provided with a water inlet pipe communicated with the cleaning groove, and the bottom of one side of the detection box is fixedly provided with a first drainage pipe communicated with the cleaning groove;
the lifting assembly is arranged at the top of the detection box and is positioned between the detection groove and the cleaning groove;
the lifting assembly is connected with the conversion assembly and used for controlling the conversion assembly to move up and down;
the two stirring mechanisms are used for stirring, the two stirring mechanisms are connected with a conversion assembly, and the conversion assembly is used for controlling the two stirring mechanisms to perform position exchange;
and the two ultrasonic generators are arranged on the outer side of the detection box, and are respectively aligned with the detection groove and the cleaning groove.
Further, a welding bracket is welded and fixed at the bottom of the detection box.
Further, the lifting assembly comprises a concave frame, an electric telescopic rod, a movable frame and a plurality of guide rods;
the concave frame is inversely fixed at the top of the detection box, the movable frame is located in the concave frame, a fixing hole is formed in the top of the concave frame, a plurality of guide holes are formed in the top of the concave frame, the electric telescopic rod is fixed in the fixing hole, the guide rod is arranged in the guide hole in a sliding mode, the telescopic rod of the electric telescopic rod is fixed with the movable frame, and one end of the guide rod is fixed with the movable frame.
Further, the conversion assembly comprises a rotating plate, a worm wheel, a worm, a rotating shaft, a second servo motor and two support plates;
the rotary shaft is fixed at the middle position of the rotary plate, a first rotary hole is formed in the middle position of the bottom of the movable frame, the rotary shaft is rotatably arranged in the first rotary hole, two stirring mechanisms are arranged at two ends of the rotary plate, two supporting plates are provided with second rotary holes, the supporting plates are rotatably arranged in the second rotary holes, the supporting plates are fixed on the movable frame, the second servo motor is fixed on one of the supporting plates, an output shaft of the second servo motor is coaxially fixed with a worm, a worm wheel is coaxially fixed with the rotary shaft, and the worm wheel is meshed with the worm.
Further, the stirring mechanism comprises a rotating cylinder, a driving mechanism and a plurality of scrapers;
the two ends of the top of the rotating plate are respectively provided with a third rotating hole, the rotating cylinder is rotatably arranged in each third rotating hole, a plurality of scraping plates are vertically arranged and uniformly distributed on the periphery of the rotating cylinder, and a connecting piece for connecting the scraping plates and the rotating cylinder is arranged between the scraping plates and the rotating cylinder;
the driving mechanism comprises a first fixing frame, a first servo motor, a driving wheel, a driven wheel and a driving belt;
the first fixing frame is fixed on the rotating plate, the first servo motor is fixed on the first fixing frame, an output shaft of the first servo motor is coaxially fixed with the driving wheel, the driven wheel is coaxially fixed with the rotating cylinder, and the transmission belt is sleeved on the driving wheel and the driven wheel.
Further, two second fixing frames are fixed on the rotating plate, a middle rod is fixed on the second fixing frames, the middle rod and the rotating cylinder are coaxially arranged, and a detector body is fixed at the bottom end of the middle rod.
The utility model has the following beneficial effects:
according to the utility model, the whole conversion assembly is moved upwards through the sewage treatment lifting assembly, the conversion assembly controls the two stirring mechanisms to perform position exchange, the lifting assembly enables the conversion assembly to reset, an exogenous water source enters from the water inlet pipe and then is discharged from the first water outlet pipe, the ultrasonic generator generates ultrasonic waves to clean the stirring mechanisms, and meanwhile, the other stirring mechanism continuously works, so that the detection work is not influenced.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a sewage treatment and detection device;
FIG. 2 is a schematic diagram of the internal structure of the sewage treatment and detection device;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;
FIG. 4 is a schematic diagram showing a cross-sectional side structure of a stirring mechanism of the sewage treatment and detection device;
in the drawings, the list of components represented by the various numbers is as follows:
1. a detection box; 2. welding a bracket; 3. an ultrasonic generator; 4. a cleaning tank; 5. a detection groove; 6. a stirring mechanism; 7. a moving rack; 8. a guide rod; 9. a concave frame; 10. an electric telescopic rod; 11. a first drain pipe; 12. a first fixing frame; 13. a first servo motor; 14. a driving wheel; 15. a transmission belt; 16. driven wheel; 17. a rotating cylinder; 18. an intermediate lever; 19. a detector body; 20. a scraper; 21. a second drain pipe; 22. an electromagnetic valve; 23. a rotating plate; 24. a worm wheel; 25. a worm; 26. a support plate; 27. a second servo motor; 28. a water inlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model discloses a sewage treatment detection device, which comprises a detection box 1, wherein a detection groove 5 and a cleaning groove 4 are formed in the top of the detection box 1, the bottom end of the detection groove 5 is conical, the conical sharp corner end is provided with a second drainage pipe 21, an electromagnetic valve 22 is arranged in the second drainage pipe 21, a water inlet pipe 28 communicated with the cleaning groove 4 is fixed at the top of one side of the detection box 1, a first drainage pipe 11 communicated with the cleaning groove 4 is fixed at the bottom of one side of the detection box 1, and the sewage treatment detection device further comprises;
the lifting assembly is arranged at the top of the detection box 1 and is positioned between the detection groove 5 and the cleaning groove 4;
the lifting assembly is connected with the conversion assembly and used for controlling the conversion assembly to move up and down;
the two stirring mechanisms 6 are used for stirring, the two stirring mechanisms 6 are connected with a conversion assembly, and the conversion assembly is used for controlling the two stirring mechanisms 6 to perform position exchange;
two ultrasonic generators 3, the two ultrasonic generators 3 are arranged on the outer side of the detection box 1, and the two ultrasonic generators are aligned with the detection groove 5 and the cleaning groove 4 respectively;
the lifting assembly moves the whole conversion assembly upwards, the conversion assembly controls the two stirring mechanisms 6 to perform position exchange, the lifting assembly resets the two stirring mechanisms, an external source of water enters from the water inlet pipe 28 and then is discharged from the first water outlet pipe 11, the ultrasonic generator 3 generates ultrasonic waves to clean the stirring mechanisms 6, and the other stirring mechanism continuously works.
Specifically, the bottom of the detection box 1 is welded and fixed with a welding bracket 2.
Specifically, the lifting assembly comprises a concave frame 9, an electric telescopic rod 10, a movable frame 7 and a plurality of guide rods 8;
wherein, the top at detecting box 1 is invertedly fixed to spill frame 9, remove frame 7 and be located spill frame 9, the fixed orifices has been seted up at the top of spill frame 9, a plurality of guiding holes have been seted up at the top of spill frame 9, electric telescopic handle 10 is fixed at the fixed orifices, guiding rod 8 slip setting is in the guiding hole, electric telescopic handle 10's telescopic handle is fixed mutually with removing frame 7, guiding rod 8's one end is fixed mutually with removing frame 7, through the above-mentioned knowledge, electric telescopic handle 10 is used for whole conversion component to reciprocate.
Specifically, the conversion assembly includes a rotation plate 23, a worm wheel 24, a worm 25, a rotation shaft, a second servo motor 27, and two support plates 26;
the rotation shaft is fixed in the intermediate position of the rotation plate 23, a first rotation hole is formed in the intermediate position of the bottom of the movable frame 7, the rotation shaft is rotatably mounted in the first rotation hole, two stirring mechanisms 6 are arranged at two ends of the rotation plate 23, second rotation holes are formed in two support plates 26, the support plates 26 are rotatably mounted in the second rotation holes, the support plates 26 are fixed on the movable frame 7, a second servo motor 27 is fixed on one of the support plates 26, an output shaft of the second servo motor 27 is coaxially fixed with a worm 25, a worm wheel 24 is coaxially fixed with the rotation shaft, the worm wheel 24 is meshed with the worm 25, the worm wheel 24 is driven to rotate through the output shaft by the second servo motor 27, and the worm wheel 24 is driven to rotate through the worm wheel 25, so that the worm wheel 24 drives the rotation plate 23 to rotate by one hundred eighty degrees through the rotation shaft to perform position exchange.
Specifically, the stirring mechanism 6 includes a rotary drum 17, a driving mechanism, and a plurality of blades 20;
wherein, both ends of the top of the rotating plate 23 are provided with third rotating holes, the rotating cylinder 17 is rotatably arranged in the third rotating holes, a plurality of scraping plates 20 are vertically arranged and uniformly distributed on the periphery of the rotating cylinder 17, and a connecting piece for connecting the scraping plates 20 and the rotating cylinder 17 is arranged between the scraping plates 20 and the rotating cylinder 17;
the driving mechanism comprises a first fixing frame 12, a first servo motor 13, a driving wheel 14, a driven wheel 16 and a driving belt 15;
the first fixing frame 12 is fixed on the rotating plate 23, the first servo motor 13 is fixed on the first fixing frame 12, the output shaft of the first servo motor 13 is coaxially fixed with the driving wheel 14, the driven wheel 16 is coaxially fixed with the rotating cylinder 17, the driving belt 15 is sleeved on the driving wheel 14 and the driven wheel 16, through the structure, the first servo motor 13 drives the driving wheel 14 to rotate through the output shaft, the driving wheel 14 drives the driven wheel 16 to rotate through the driving belt 15, the driven wheel 16 drives the rotating cylinder 17 to rotate, the rotating cylinder 17 drives the scraping plate 20 to rotate and is positioned in the detecting groove 5, the scraping plate 20 can stir sewage, the accuracy of detection of the detector body 19 is convenient to be improved, meanwhile, when the detecting groove 5 is drained, the scraping plate 20 scrapes the inner wall for cleaning, and the ultrasonic generator 3 is matched for use, so that the sewage in the detecting groove 5 is completely drained.
Specifically, two second fixing frames are fixed on the rotating plate 23, an intermediate rod 18 is fixed on the second fixing frames, the intermediate rod 18 and the rotating cylinder 17 are coaxially arranged, and a detector body 19 is fixed at the bottom end of the intermediate rod 18.
One specific application of this embodiment is: in daily use, the lifting assembly moves the whole conversion assembly upwards, and after the conversion assembly controls the two stirring mechanisms 6 to perform position exchange, the lifting assembly resets the stirring mechanisms through the conversion assembly, an exogenous water source enters from the water inlet pipe 28 and then is discharged from the first water outlet pipe 11, the ultrasonic generator 3 generates ultrasonic waves to clean the stirring mechanisms 6, and meanwhile, the other stirring mechanism continuously works.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form 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 understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The sewage treatment detection device comprises a detection box (1), and is characterized in that a detection groove (5) and a cleaning groove (4) are formed in the top of the detection box (1), the bottom end of the detection groove (5) is conical, the conical sharp corner end is a second drain pipe (21), an electromagnetic valve (22) is installed in the second drain pipe (21), a water inlet pipe (28) communicated with the cleaning groove (4) is fixed at the top of one side of the detection box (1), and a first drain pipe (11) communicated with the cleaning groove (4) is fixed at the bottom of one side of the detection box (1) and further comprises;
the lifting assembly is arranged at the top of the detection box (1) and is positioned between the detection groove (5) and the cleaning groove (4);
the lifting assembly is connected with the conversion assembly and used for controlling the conversion assembly to move up and down;
the two stirring mechanisms (6) are used for stirring, the two stirring mechanisms (6) are connected with a conversion assembly, and the conversion assembly is used for controlling the two stirring mechanisms (6) to perform position exchange;
and the two ultrasonic generators (3) are respectively arranged on the outer sides of the detection boxes (1), and the two ultrasonic generators are respectively aligned with the detection grooves (5) and the cleaning grooves (4).
2. The sewage treatment detection device according to claim 1, wherein a welding bracket (2) is welded and fixed at the bottom of the detection box (1).
3. The sewage treatment detection device according to claim 1, wherein the lifting assembly comprises a concave frame (9), an electric telescopic rod (10), a movable frame (7) and a plurality of guide rods (8);
the device comprises a concave frame (9), a detection box (1) and a movable frame (7), wherein the concave frame (9) is inversely fixed at the top of the detection box (1), the movable frame (7) is located in the concave frame (9), a fixing hole is formed in the top of the concave frame (9), a plurality of guide holes are formed in the top of the concave frame (9), an electric telescopic rod (10) is fixed in the fixing hole, a guide rod (8) is slidably arranged in the guide hole, the telescopic rod of the electric telescopic rod (10) is fixed with the movable frame (7), and one end of the guide rod (8) is fixed with the movable frame (7).
4. A sewage treatment detection device according to claim 3, wherein the conversion assembly comprises a rotation plate (23), a worm wheel (24), a worm (25), a rotation shaft, a second servo motor (27) and two support plates (26);
the rotary shaft is fixed in the middle position of the rotary plate (23), a first rotary hole is formed in the middle position of the bottom of the movable frame (7), the rotary shaft is rotatably mounted in the first rotary hole, two stirring mechanisms (6) are arranged at two ends of the rotary plate (23), two support plates (26) are respectively provided with a second rotary hole, the support plates (26) are rotatably mounted in the second rotary holes, the support plates (26) are fixed on the movable frame (7), a second servo motor (27) is fixed on one of the support plates (26), an output shaft of the second servo motor (27) is coaxially fixed with a worm (25), a worm wheel (24) is coaxially fixed with the rotary shaft, and the worm wheel (24) is meshed with the worm (25).
5. The sewage treatment detection apparatus according to claim 4, wherein the stirring mechanism (6) includes a rotary drum (17), a driving mechanism, and a plurality of scrapers (20);
the two ends of the top of the rotating plate (23) are provided with third rotating holes, the rotating cylinder (17) is rotatably arranged in the third rotating holes, a plurality of scraping plates (20) are vertically arranged and uniformly distributed on the periphery of the rotating cylinder (17), and a connecting piece for connecting the scraping plates (20) and the rotating cylinder (17) is arranged between the scraping plates and the rotating cylinder;
the driving mechanism comprises a first fixing frame (12), a first servo motor (13), a driving wheel (14), a driven wheel (16) and a transmission belt (15);
the first fixing frame (12) is fixed on the rotating plate (23), the first servo motor (13) is fixed on the first fixing frame (12), an output shaft of the first servo motor (13) is coaxially fixed with the driving wheel (14), the driven wheel (16) is coaxially fixed with the rotating cylinder (17), and the driving belt (15) is sleeved on the driving wheel (14) and the driven wheel (16).
6. The sewage treatment detection device according to claim 5, wherein two second fixing frames are fixed on the rotating plate (23), an intermediate rod (18) is fixed on the second fixing frames, the intermediate rod (18) is coaxially arranged with the rotating cylinder (17), and a detector body (19) is fixed at the bottom end of the intermediate rod (18).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321925752.XU CN220425212U (en) | 2023-07-21 | 2023-07-21 | Sewage treatment detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321925752.XU CN220425212U (en) | 2023-07-21 | 2023-07-21 | Sewage treatment detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220425212U true CN220425212U (en) | 2024-02-02 |
Family
ID=89699958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202321925752.XU Active CN220425212U (en) | 2023-07-21 | 2023-07-21 | Sewage treatment detection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220425212U (en) |
-
2023
- 2023-07-21 CN CN202321925752.XU patent/CN220425212U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN220425212U (en) | Sewage treatment detection device | |
CN220530752U (en) | Sedimentation tank for domestic sewage treatment | |
CN216549720U (en) | Domestic sewage treatment device | |
CN216191234U (en) | Ultraviolet sterilizer for integrated domestic sewage treatment equipment | |
CN211235824U (en) | Medical waste water online DPD on-line monitoring device | |
CN212799988U (en) | Buried domestic sewage treatment equipment | |
CN213728482U (en) | Garbage disposal device with solid-liquid separation function | |
CN212442451U (en) | Test tube cleaning and sterilizing device for clinical laboratory of hospital | |
CN207479067U (en) | A kind of sewage disposal electric motor end cap cleaning plant | |
CN111922008A (en) | A high-efficient belt cleaning device for biological cell culture dish | |
CN209810877U (en) | Quick belt cleaning device of culture dish for medical treatment | |
CN111847554A (en) | High efficiency distillation formula sewage treatment device | |
CN220642718U (en) | Domestic sewage treatment equipment | |
CN108672448A (en) | A kind of biotechnology reagent can washing apparatus | |
CN220999289U (en) | Purification tank for sewage treatment | |
CN211393984U (en) | Coagulating sedimentation device for rural domestic sewage treatment | |
CN220776919U (en) | Pig house circulation device of decontaminating | |
CN213620931U (en) | Portable SPF level animal strorage device | |
CN218202222U (en) | Environmental engineering sewage ecological purification simulation device | |
CN221319374U (en) | Wastewater treatment device based on furfural production | |
CN221370665U (en) | Heavy metal pollution collecting and treating device | |
CN216039174U (en) | Integrated domestic sewage biochemical treatment equipment capable of carrying out centralized treatment on sludge | |
CN219792629U (en) | Integrated sewage treatment equipment | |
CN207243616U (en) | The processing equipment of fluoride and calcium ion in a kind of removal coal chemical industry sewage | |
CN221014679U (en) | Rural sewage treatment plant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |