CN219128518U - Cleaning device for potato residue recovery - Google Patents
Cleaning device for potato residue recovery Download PDFInfo
- Publication number
- CN219128518U CN219128518U CN202223171769.9U CN202223171769U CN219128518U CN 219128518 U CN219128518 U CN 219128518U CN 202223171769 U CN202223171769 U CN 202223171769U CN 219128518 U CN219128518 U CN 219128518U
- Authority
- CN
- China
- Prior art keywords
- box body
- sliding
- potato
- cleaning device
- mesh belt
- 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
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Abstract
The utility model provides a cleaning device for potato residue recovery, which belongs to the technical field of sweet potato processing, wherein the cleaning device for potato residue recovery comprises a box body, a feed inlet and a discharge outlet which are respectively arranged at the front end and the rear end of the box body, a conveying mesh belt is rotatably arranged in the middle of the box body, an extrusion mechanism and a standing tray are respectively arranged at the upper end and the lower end of the conveying mesh belt, a containing hopper is arranged in the box body at the upper end of the standing tray, a cleaning brush is arranged in the box body at the upper end of the containing hopper in a sliding manner, and bristles at the lower end of the cleaning brush are inserted into the lower side mesh belt surface of the conveying mesh belt; according to the utility model, the cleaning brush can be driven by the linkage mechanism to clean the potato residues adhered on the filter screen, so that the potato residues are separated from the filter plate, and the potato residues cleaned by the cleaning brush can be subjected to secondary filtration by the hopper to remove moisture in the potato residues, so that the potato residues are fully recycled, and the waste of sweet potato raw materials is avoided.
Description
Technical Field
The utility model relates to the technical field of sweet potato processing, in particular to a cleaning device for recycling sweet potato residues.
Background
The sweet potato starch has strong water absorption capacity, is very suitable for making desserts, vermicelli, sheet jelly and the like, has darker color and luster, coarser particles and difficult control of viscosity after gelatinization, is widely used for making Chinese desserts such as mountain flour dumplings, is also very suitable for making vermicelli and sheet jelly due to smooth and tough mouthfeel, is made of the sweet potato powder which is frequently used when eating hot pot, can be also used for frying, and the salted spareribs are stained with coarse-grain sweet potato starch, and has crisp mouthfeel and granular epidermis which can also stimulate appetite after frying.
When sweet potato starch is processed and manufactured, sweet potatoes are cleaned and crushed, a large amount of potato residues are generated in the process, the potato residues also have high water content, a small amount of starch can be recycled, and the potato residues can be reused as fertilizer or feed; however, when the potato residue is recovered, the existing potato residue recovery device has the condition that a filter screen is blocked by potato residue, so that the recovery efficiency is low, and the process requirement of a large number of potato residue recovery cannot be met, so that the cleaning device for potato residue recovery is provided.
Disclosure of Invention
In view of the above, the utility model provides a cleaning device for potato residue recovery, which not only can drive a cleaning brush to clean potato residue adhered on a filter screen through a linkage mechanism to enable the potato residue to be separated from a filter plate, but also can carry out secondary filtration on the potato residue cleaned by the cleaning brush through a containing hopper to remove water in the potato residue, so that the potato residue is fully recycled, and the waste of sweet potato raw materials is avoided.
In order to solve the technical problems, the utility model provides a cleaning device for potato residue recovery, which comprises a box body, wherein a feed inlet and a discharge outlet are respectively formed in the front end and the rear end of the box body, a feed hopper is arranged on the box body outside the feed inlet, guide plates made of rubber are arranged at the upper ends of the feed inlet and the discharge outlet, the inner ends of the guide plates are overlapped with a conveying mesh belt, the conveying mesh belt is rotationally arranged in the middle of the box body, an extrusion mechanism and a standing tray are respectively arranged at the upper end and the lower end of the conveying mesh belt, the standing tray is used for precipitating extruded potato residue waste water, starch loss in potato residue is reduced, resources are wasted, a containing hopper is arranged in the box body at the upper end of the standing tray, a cleaning brush is arranged in the box body at the upper end of the containing hopper in a sliding manner, bristles at the lower end of the cleaning brush are inserted into the lower mesh belt surface of the conveying mesh belt, a first sliding rod and a second sliding rod are respectively connected at the left end and the right end of the cleaning brush, a device cavity is arranged on the box body at the outer end of the first sliding rod, a limit cavity is arranged on the box body at the outer end of the second sliding rod, the trough hopper, slurry is separated through the feed hopper, the guide plates and the conveying mesh belt are used for carrying out slurry, the slurry is discharged from the settling tray, and the slurry is discharged from the bottom through the settling tray after the settling tray is separated, and the slurry is discharged from the settling mesh belt by the settling tray.
In order to realize the conveying of potato residues, the front end and the rear end of a conveying mesh belt are respectively provided with a driven roller and a driving roller, a driving rotating shaft is arranged in the middle of the driving roller, the left end and the right end of the driving rotating shaft which freely slides through the inner wall of a box body are respectively connected with a linkage mechanism and a driving mechanism, a driven bevel gear is arranged at the outer end of the driving rotating shaft, a motor is arranged at the outer side of the box body, the output end of the motor is connected with the driving bevel gear, the driving bevel gear and the driven bevel gear are in meshed transmission, and the driving bevel gear drives the driving rotating shaft of the driving roller to rotate through the motor, the driving bevel gear and the driven bevel gear, so that the conveying of the conveying mesh belt is completed.
As a further improvement of the potato residue collector, a driving gear is arranged at the outer end of a driving rotating shaft, the front side of the driving gear is meshed with a transmission linkage gear, a first sliding groove is formed in the outer surface of a gear shaft at the right side of the linkage gear, the first sliding groove is freely slid through the outer end of a first sliding rod on the inner wall of a box body, a control groove is formed in the outer end of the control groove, a first sliding block is respectively arranged at the upper end and the lower end of the control groove, the gear shaft at the right side of the linkage gear is inserted into the control groove, the first sliding block is slidably arranged in the first sliding groove, a limiting plate is slidably arranged in a limiting cavity, the inner side of the limiting plate is connected with a second sliding rod, the driving gear at the outer end of the driving rotating shaft drives the linkage gear to be meshed with and rotated through a motor and the driving rotating shaft, and the first sliding groove on the gear shaft of the linkage gear is matched with the control groove so as to drive the control groove to continuously move forwards and backwards, the control groove drives a cleaning brush to brush the surface of a conveying mesh belt, residues on the mesh belt after potato residue is separated, residues are prevented from being accumulated and filtered for a plurality of times.
In order to realize the slag-slurry separation to the potato residue, four telescopic motors are evenly spaced on the inner surface of the upper end of the box body, the lower end of each telescopic motor is connected with the extrusion plate, the potato residue in the box body is extruded for many times through the telescopic motors and the extrusion plate, so that the potato residue is fully juiced, the potato residue and the potato slurry are respectively discharged, the potato residue is fully recycled, and the waste of sweet potato raw materials is avoided.
In order to collect potato residue slurry, the left side and the right side of the holding hopper are respectively provided with a second sliding block, the left side and the right side of the box body are respectively provided with a second sliding groove matched with the second sliding block, the second sliding block is slidably arranged in the second sliding groove on the same side, the box body on the outer side of the holding hopper is provided with a cleaning hole, the upper end of the cleaning hole is hinged with a protection plate matched with the upper end of the cleaning hole, the front side and the rear side of the holding tray are respectively provided with a third sliding block, the front side and the rear side of the box body are respectively provided with a third sliding groove matched with the third sliding block, the third sliding blocks are slidably arranged in the third sliding grooves on the same side, the left side of the holding tray is provided with a handle, the left side of the box body is provided with a recovery opening, the handle is placed in the recovery opening, and when residues are transferred, the sliding blocks are pulled upwards to enable the sliding blocks to move along the sliding grooves, and workers dial potato residue or starch deposited by the slurry into the feeding hopper from the side opening position.
In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:
according to the potato residue recovery device, the motor drives the driving rotating shaft on the conveying mesh belt to rotate, the driving gear at the outer end of the driving rotating shaft drives the linkage gear to mesh and rotate, and the first sliding groove on the gear shaft of the linkage gear is matched to drive the control column to rotate, so that the control column is driven by the first sliding block and the first sliding groove to continuously move forwards and backwards, the control column drives the cleaning brush to brush the surface of the conveying mesh belt, residues on the mesh belt after potato residue and slurry are separated from the conveying mesh belt are reduced, potato residue is prevented from being accumulated after the mesh belt is conveyed and filtered for multiple times, the recovery effect of potato residue is affected, the effective service life of the conveying mesh belt is prolonged, and the recovery effect of potato residue is improved.
According to the utility model, the potato residues in the cavity are extruded for multiple times through the plurality of extrusion plates, so that the potato residues are fully juiced, and the potato residues and the potato pulp are respectively discharged, so that the potato residues are fully recycled, and the waste of sweet potato raw materials is avoided.
According to the utility model, through the cooperation of the standing tray, the sliding block and the sliding rail, wastewater generated by processing sweet potato starch can be effectively recycled, and the production cost of sweet potato starch is reduced.
Drawings
FIG. 1 is a schematic structural view of a cleaning device for potato residue recovery according to the present utility model;
FIG. 2 is an enlarged schematic view of a part of the structure of FIG. 1A;
FIG. 3 is an enlarged schematic view of the partial structure of B in FIG. 1;
FIG. 4 is a schematic side view of the cleaning device for potato residue recovery of the present utility model.
100. A case; 101. a feed inlet; 102. a discharge port; 103. conveying a mesh belt; 104. standing the tray; 105. a hopper; 106. cleaning brushes; 107. driven roller; 108. a drive roll; 109. a driving rotating shaft; 110. a first slide bar; 111. a second slide bar; 112. an equipment chamber; 113. a spacing cavity; 114. a limiting plate; 115. a feed hopper; 116. a material guide plate; 117. a second slider; 118. a second chute; 119. cleaning the hole; 120. a protection plate; 121. a third slider; 122. a third chute; 123. a handle; 124. recovering the mouth; 201. a telescopic motor; 202. an extrusion plate; 301. a drive gear; 302. a linkage gear; 303. a first chute; 304. a control column; 305. a control groove; 306. a first slider; 401. a driven bevel gear; 402. a motor; 403. and a drive bevel gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
The embodiment provides a cleaning device for potato residue recovery, as shown in fig. 1, the cleaning device comprises a box body 100, a feed inlet 101 and a discharge outlet 102 which are respectively arranged at the front end and the rear end of the box body 100, a feed hopper 115 is arranged on the box body 100 at the outer side of the feed inlet 101, a material guide plate 116 made of rubber is arranged at the upper end of the feed inlet 101 and the upper end of the discharge outlet 102, the inner end of the material guide plate 116 is lapped with a conveying net belt 103, the conveying net belt 103 is rotatably arranged in the middle of the box body 100, an extrusion mechanism and a standing tray 104 are respectively arranged at the upper end and the lower end of the conveying net belt 103, a containing hopper 105 is arranged in the box body 100 at the upper end of the standing tray 104, a cleaning brush 106 is arranged in the box body 100 at the upper end of the containing hopper 105 in a sliding manner, a first sliding rod 110 and a second sliding rod 111 are respectively connected at the left end and the right end of the cleaning brush 106, a device cavity 112 is arranged on the box body 100 at the outer end of the first sliding rod 110, a limiting cavity 113 is arranged on the box body 100 at the outer end of the second sliding rod 111, and bristles at the lower end of the cleaning brush 106 are inserted into a lower side net belt surface of the conveying net belt 103.
The extrusion mechanism comprises four telescopic motors 201 which are uniformly arranged on the inner surface of the upper end of the box body 100 at intervals, the lower ends of the telescopic motors 201 are connected with extrusion plates 202, the telescopic motors 201 drive the extrusion plates 202 to extrude potato residues in the box body 100 for multiple times, so that the potato residues are fully juiced, the potato residues and potato pulp are respectively discharged, and the potato residues are fully recycled.
As shown in fig. 1, the front end and the rear end of the conveying mesh belt 103 are respectively provided with a driven roller 107 and a driving roller 108, a driving rotating shaft 109 is installed in the middle of the driving roller 108, the left end and the right end of the driving rotating shaft 109 which freely slides through the inner wall of the box body 100 are respectively connected with a linkage mechanism and a driving mechanism, the driving mechanism comprises a driven bevel gear 401 arranged at the outer end of the driving rotating shaft 109, a motor 402 is installed at the outer side of the box body 100, the output end of the motor 402 is connected with a driving bevel gear 403, the driving bevel gear 403 is meshed with the driven bevel gear 401 for transmission, the motor 402 drives the driving bevel gear 403, and the driving bevel gear 403 drives the driving rotating shaft 109 of the driving roller 108 to rotate through the driven bevel gear 401, so that conveying of the conveying mesh belt 103 is completed.
As shown in fig. 1, the linkage mechanism comprises a driving gear 301 arranged at the outer end of a driving rotating shaft 109, the front side of the driving gear 301 is meshed with a transmission linkage gear 302, as shown in fig. 2, a first sliding groove 303 is formed on the outer surface of a gear shaft at the right side of the linkage gear 302, the outer end of a first sliding rod 110 which freely slides through the inner wall of the box body 100 is connected with a control column 304, a control groove 305 is formed at the outer end of the control column 304, a first sliding block 306 is respectively arranged at the upper end and the lower end of the control groove 305, the gear shaft at the right side of the linkage gear 302 is inserted in the control groove 305, the first sliding block 306 is slidably arranged in the first sliding groove 303, as shown in fig. 3, a limiting plate 114 is slidably arranged in a limiting cavity 113, the second slide bar 111 is connected to the inboard of limiting plate 114, motor 402 drives the initiative pivot 109 on the conveying guipure 103 and rotates, the driving gear 301 of initiative pivot 109 outer end drives the linkage gear 302 meshing and rotation, thereby drive control post 304 rotation by cooperation linkage gear 302 epaxial first spout 303, make control post 304 by first slider 306 and first spout 303 drive constantly forward and backward movement, control post 304 drives cleaning brush 106 and brushes conveying guipure 103 surface, reduce conveying guipure 103 and carry out the residue of slag charge on the guipure after potato sediment thick liquid separation, prevent that the guipure from piling up after carrying the filtration many times.
As shown in fig. 1, the front and rear sides of the standing tray 104 are respectively provided with a third sliding groove 121, the front and rear side walls of the box body 100 are respectively provided with a third sliding groove 122 matched with the third sliding groove 121, the third sliding groove 121 is slidably arranged in the third sliding groove 122 on the same side, the left side of the standing tray 104 is provided with a handle 123, the left side of the box body 100 is provided with a recovery opening 124, the handle 123 is placed in the recovery opening 124, as shown in fig. 4, the left and right sides of the holding hopper 105 are respectively provided with a second sliding groove 117, the left and right side walls of the box body 100 are respectively provided with a second sliding groove 118 matched with the second sliding groove 117, the second sliding groove 117 is slidably arranged in the second sliding groove 118 on the same side, the box body 100 on the outer side of the holding hopper 105 is provided with a cleaning hole 119, and the upper end of the cleaning hole 119 is hinged with an adapted protection plate 120.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The utility model provides a potato sediment is retrieved and is used cleaning device, includes box (100) and offers respectively feed inlet (101) and discharge gate (102) at both ends around box (100) the middle part of box (100) rotates and sets up conveying mesh belt (103), its characterized in that: the upper end and the lower end of the conveying mesh belt (103) are respectively provided with an extrusion mechanism and a standing tray (104), a containing hopper (105) is arranged in the box body (100) at the upper end of the standing tray (104), a cleaning brush (106) is arranged in the box body (100) at the upper end of the containing hopper (105) in a sliding mode, and bristles at the lower end of the cleaning brush (106) are inserted into a mesh belt surface at the lower side of the conveying mesh belt (103).
2. The cleaning device for potato residue recovery as claimed in claim 1, wherein: the front end and the rear end of the conveying mesh belt (103) are respectively provided with a driven roller (107) and a driving roller (108), a driving rotating shaft (109) is arranged in the middle of the driving roller (108), and the left end and the right end of the driving rotating shaft (109) which freely slide through the inner wall of the box body (100) are respectively connected with a linkage mechanism and a driving mechanism.
3. The cleaning device for potato residue recovery as claimed in claim 2, wherein: the left end and the right end of the cleaning brush (106) are respectively connected with a first sliding rod (110) and a second sliding rod (111), a device cavity (112) is arranged on the box body (100) at the outer end of the first sliding rod (110), and a limit cavity (113) is arranged on the box body (100) at the outer end of the second sliding rod (111).
4. The cleaning device for potato residue recovery as claimed in claim 3, wherein: the linkage mechanism comprises a driving gear (301) arranged at the outer end of the driving rotating shaft (109), a front side of the driving gear (301) is meshed with a transmission linkage gear (302), a first sliding groove (303) is formed in the outer surface of a gear shaft on the right side of the linkage gear (302), a control column (304) is connected with the outer end of a first sliding rod (110) which freely slides through the inner wall of the box body (100), a control groove (305) is formed in the outer end of the control column (304), a first sliding block (306) is respectively arranged at the upper end and the lower end of the control groove (305), and a gear shaft on the right side of the linkage gear (302) is inserted into the control groove (305), and the first sliding block (306) is arranged in the first sliding groove (303) in a sliding mode.
5. The cleaning device for potato residue recovery as claimed in claim 3, wherein: and a limiting plate (114) is arranged in the limiting cavity (113) in a sliding mode, and the inner side of the limiting plate (114) is connected with the second sliding rod (111).
6. The cleaning device for potato residue recovery as claimed in claim 2, wherein: the driving mechanism comprises a driven bevel gear (401) arranged at the outer end of the driving rotating shaft (109), a motor (402) is arranged at the outer side of the box body (100), the output end of the motor (402) is connected with a driving bevel gear (403), and the driving bevel gear (403) is meshed with the driven bevel gear (401) for transmission.
7. The cleaning device for potato residue recovery as claimed in claim 2, wherein: a feed hopper (115) is arranged on the box body (100) at the outer side of the feed inlet (101), a rubber material guide plate (116) is arranged at the upper ends of the feed inlet (101) and the discharge outlet (102), and the inner end of the guide plate (116) is in lap joint with the conveying mesh belt (103).
8. The cleaning device for potato residue recovery as claimed in claim 2, wherein: the extrusion mechanism comprises four telescopic motors (201) which are uniformly arranged on the inner surface of the upper end of the box body (100) at intervals, and the lower ends of the telescopic motors (201) are connected with extrusion plates (202).
9. The cleaning device for potato residue recovery as claimed in claim 2, wherein: second sliding blocks (117) are respectively arranged on the left side and the right side of the hopper (105), second sliding grooves (118) matched with the second sliding blocks (117) are respectively formed in the left side wall and the right side wall of the box body (100), the second sliding blocks (117) are slidably arranged in the second sliding grooves (118) on the same side, cleaning holes (119) are formed in the box body (100) on the outer side of the hopper (105), and the upper ends of the cleaning holes (119) are hinged to protection plates (120) matched with each other.
10. The cleaning device for potato residue recovery as claimed in claim 9, wherein: third sliding blocks (121) are respectively arranged on the front side and the rear side of the standing tray (104), third sliding grooves (122) matched with the third sliding blocks (121) are respectively formed in the front side and the rear side of the box body (100), the third sliding blocks (121) are arranged in the third sliding grooves (122) on the same side in a sliding mode, a handle (123) is arranged on the left side of the standing tray (104), a recovery opening (124) is formed in the left side of the box body (100), and the handle (123) is placed in the recovery opening (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223171769.9U CN219128518U (en) | 2022-11-29 | 2022-11-29 | Cleaning device for potato residue recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223171769.9U CN219128518U (en) | 2022-11-29 | 2022-11-29 | Cleaning device for potato residue recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219128518U true CN219128518U (en) | 2023-06-06 |
Family
ID=86562948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223171769.9U Active CN219128518U (en) | 2022-11-29 | 2022-11-29 | Cleaning device for potato residue recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219128518U (en) |
-
2022
- 2022-11-29 CN CN202223171769.9U patent/CN219128518U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106616912B (en) | System for be used for producing sweet potato powder | |
| CN110898523B (en) | Rapeseed oil sedimentation tank | |
| CN113856281A (en) | Silt processing apparatus for hydraulic engineering | |
| CN219128518U (en) | Cleaning device for potato residue recovery | |
| CN214004405U (en) | Sludge treatment equipment of environmental protection for hydraulic engineering | |
| CN114261485B (en) | Unmanned ship device with garbage cleaning and full-spectrum water quality monitoring functions | |
| CN217309064U (en) | Potato flour preparation processingequipment | |
| CN213826164U (en) | Waste residue collection device is used in ground rice processing production | |
| CN115943903A (en) | Automatic change drinking water equipment of raising pigs | |
| CN213140663U (en) | Anti-blocking type feeding device for rice flour production | |
| CN210226824U (en) | Pulp and shell separator for berries | |
| CN112478680A (en) | A ground rice conveying equipment for ground rice processing | |
| CN208839189U (en) | A kind of nucleating agent Special filter press | |
| CN110754672A (en) | But self-cleaning's food processingequipment | |
| CN110882921A (en) | General grain loading machine with environment-friendly vibrating screen and pulse dust collector | |
| CN219745572U (en) | Primary classifying hopper device for dehydrated garlic slices | |
| CN117085397B (en) | Self-cleaning solid-liquid separation device for sewage treatment | |
| CN211814053U (en) | Biological treatment excrement sewage machine | |
| CN219905680U (en) | Fertilizer hopper type elevator | |
| CN216267771U (en) | Kitchen waste reduction treatment device with convenient feeding mode | |
| CN216856997U (en) | Reducing mechanism of bio-organic fertilizer production usefulness | |
| CN114104551B (en) | Automatic broken bag classification dustbin in district gate | |
| CN220131911U (en) | Potassium feldspar powder wastewater treatment device | |
| CN115005396B (en) | Pretreatment device for vegetable packet processing | |
| CN218797093U (en) | Multistage screening plant is used in chinese torreya processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |