CN112628282A - Bearing with high wear resistance - Google Patents
Bearing with high wear resistance Download PDFInfo
- Publication number
- CN112628282A CN112628282A CN202011284379.5A CN202011284379A CN112628282A CN 112628282 A CN112628282 A CN 112628282A CN 202011284379 A CN202011284379 A CN 202011284379A CN 112628282 A CN112628282 A CN 112628282A
- Authority
- CN
- China
- Prior art keywords
- oil
- roller
- bearing
- wear resistance
- high wear
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/12—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. by wicks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a bearing with high wear resistance, and relates to the field of bearings; the bearing with high wear resistance comprises an inner ring, an outer ring, a roller, a rolling shaft and an oil brush; the two ends of the outer ring extend towards the direction of the circle center to form baffle plates, and a plurality of shaft holes are formed in the baffle plates; the roller is sleeved on the rolling shaft and can rotate on the rolling shaft; two ends of the rolling shaft are arranged in the shaft hole in an interference manner, so that the position of the roller is fixed on the outer ring; the oil brush is embedded between the two baffles and is also positioned between the two adjacent rollers; the oil brush is abutted against the roller, and when the roller rotates, the oil brush can wipe the outer surface of the roller; the inner ring is embedded in the outer ring, and the outer circular surface of the inner ring is abutted against the roller and the oil brush; when the inner ring rotates, the inner ring can drive the roller to rotate, and the oil brush can wipe the outer circular surface of the inner ring; the bearing with high wear resistance reduces the impact among all the parts in the running process of the bearing through the design of fixing the rollers, reduces the abrasion among all the parts and prolongs the service life.
Description
Technical Field
The invention relates to the field of bearings, in particular to a bearing with high wear resistance.
Background
The rolling bearing is subject to wear of its various parts during operation, generating fine debris which adheres to the parts by the action of the lubricating oil, thus accelerating wear between the various parts.
The pure rolling bearing disclosed in the chinese patent 101782107a is a pure rolling bearing without a cage, having no sliding friction, and having cylindrical or tapered cylindrical rolling elements, and includes an inner ring, an outer ring, and a plurality of rolling elements disposed between the inner ring and the outer ring, wherein a positioning rolling element is disposed between each two adjacent rolling elements along a circumferential direction, and forms a rolling contact structure with the two adjacent rolling elements; the middle part of the rolling body is provided with a concave slideway which is matched with a roller for positioning the rolling body; the positioning rolling body is provided with a roller matched with the rolling body slideway, the two ends of the positioning rolling body are provided with slideways, and the slideways are also provided with positioning rings. .
There is therefore a need for a bearing that avoids the sticking of debris to replace the problems with existing bearings.
Disclosure of Invention
First, technical problem to be solved
The invention aims to solve the problems in the prior art, and particularly provides a bearing with high wear resistance, which solves the problem that the existing bearing cannot be worn due to the adhesion of chips.
Second, technical scheme
In order to solve the above technical problems, the present invention provides a bearing having high wear resistance, comprising: the roller brush comprises an inner ring, an outer ring, a roller, a rolling shaft and an oil brush; the two ends of the outer ring extend towards the direction of the circle center to form baffle plates, and a plurality of shaft holes are formed in the baffle plates; the roller is sleeved on the rolling shaft and can rotate on the rolling shaft; two ends of the rolling shaft are arranged in the shaft hole in an interference manner, so that the position of the roller is fixed on the outer ring; the oil brush is embedded between the two baffles and is also positioned between the two adjacent rollers; the oil brush is abutted against the roller, and when the roller rotates, the oil brush can wipe the outer surface of the roller; the inner ring is embedded in the outer ring, and the outer circular surface of the inner ring is abutted against the roller and the oil brush; when the inner ring rotates, the inner ring can drive the roller to rotate, and the oil brush can wipe the outer circular surface of the inner ring.
Wherein, an oil seal is also arranged between the inner ring and the outer ring.
Wherein, still set up flutedly on the baffle, the oil blanket circumference is provided with the boss, and the boss inlays in the recess.
Wherein, still be equipped with the oil groove on the outer lane inner wall, lubricating oil is stored in the oil groove.
Wherein, the outer wall of the outer ring is provided with an oil filling hole which is communicated with the oil ditch.
Wherein, be equipped with the oil plug on the oil filler point, the oil plug is used for blockking up the oil filler point.
Wherein, the oil grooves are longitudinally or transversely or obliquely distributed on the inner wall of the outer ring.
Wherein, the oil grooves are longitudinally and transversely combined and distributed on the inner wall of the outer ring.
Wherein, the oil brush is oil absorption cotton or felt or oil absorption sheet.
Thirdly, the invention has the beneficial effects
Compared with the prior art, the bearing with high wear resistance has the following beneficial effects:
(1) through the design of the fixed rollers, the impact between each part of the bearing is reduced in the operation process, the abrasion between each part is reduced, and the service life is prolonged.
(2) Through the design of the oil brush, the outer edge surfaces of the roller and the inner ring are wiped by the oil brush when the bearing operates, the pitting abrasion of the chips on the surfaces of the roller and the inner ring is reduced, the oil brush has an oiling effect while wiping, the friction between the inner ring and the roller is reduced, and the abrasion resistance degree of the bearing is further improved.
(3) Through the design of oil filler point and oil groove, make the bearing can store and court adds lubricating oil, guaranteed that bearing inside has sufficient lubricating oil.
Drawings
FIG. 1 is an overall structural view of a bearing having high wear resistance according to the present invention;
FIG. 2 is a block diagram of a conditioner for a bearing having high wear resistance according to the present invention;
FIG. 3 is a structural view of a debugging mechanism of the bearing with high wear resistance of the present invention;
FIG. 4 is a partial structural view A of a debugging mechanism of the bearing with high wear resistance according to the present invention;
FIG. 5 is a partial structural view B of a debugging mechanism of the bearing with high wear resistance of the invention;
FIG. 6 is a structural view of a relay bearing mold of the bearing with high wear resistance according to the present invention; in the figure: 1 is an inner ring; 2 is an outer ring; 3 is a roller; 4 is a rolling shaft; 5, an oil brush; 6 is an oil seal; 21 is a baffle plate; 22 is a shaft hole; 23 is a groove; 24 is an oil ditch; 25 is an oil hole; 26 is an oil plug; and 61 is a boss.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The first embodiment is as follows:
the structure of the bearing having high wear resistance of the present embodiment includes, as shown in fig. 1 to 6: the device comprises an inner ring 1, an outer ring 2, a roller 3, a rolling shaft 4 and an oil brush 5;
two ends of the outer ring 2 extend to the direction of the circle center to form baffle plates 21, and the baffle plates 21 are provided with a plurality of shaft holes 22; an oil groove 24 is further formed in the inner wall of the outer ring 2, and lubricating oil in the oil groove 24 is used for storing lubricating oil;
the roller 3 is sleeved on the rolling shaft 4, and the roller 3 can rotate on the rolling shaft 4;
the two ends of the roller 4 are arranged in the shaft hole 22 in an interference manner, so that the position of the roller 3 is fixed on the outer ring 2, and the roller 3 rotates at the fixed position;
the oil brush 5 is embedded between the two baffles 21, and the oil brush 5 is also positioned between the two adjacent rollers 3;
the oil brush 5 is abutted against the roller 3, and when the roller 3 rotates, the oil brush 5 can wipe the outer surface of the roller 3;
the inner ring 1 is embedded in the outer ring 2, and the outer circular surface of the inner ring 1 is abutted against the roller 3 and the oil brush 5;
when the inner ring 1 rotates, the inner ring 1 drives the roller 3 to rotate, and the oil brush 5 wipes the outer circular surface of the inner ring 1.
The oil brush 5, in addition to its wiping action, also serves to oil the rollers 3 and the inner ring 1 during operation of the bearing.
The oil grooves 24 can be distributed on the inner wall of the outer ring 2 in a single mode of longitudinal or transverse or inclined mode, and can also be distributed on the inner wall of the outer ring 2 in a combined mode of longitudinal and transverse.
The oil brush 5 is made of materials such as oil absorption cotton or felt or oil absorption sheet and the like which have certain wear resistance and can absorb certain oil quantity.
An oil filling hole 25 is formed in the outer wall of the outer ring 2, the oil filling hole 25 is communicated with the oil ditch 24, lubricating oil can be injected into the oil ditch 24 through the oil filling hole 25 when the lubricating oil in the oil ditch 24 is used up, and the lubricating oil can also be replaced through the oil filling hole 25.
The oil filler hole 25 is provided with a plug 26, and the oil plug 26 is used to block the oil filler hole 25 in a non-oil-filled state.
Example two:
in the above embodiment, the oil seal 6 is further disposed between the inner ring 1 and the outer ring 2, the baffle 21 is further provided with the groove 23, the outer circumference of the oil seal 6 is provided with the boss 61, the boss 61 is embedded in the groove 23, and the arrangement of the oil seal 6 can effectively prevent the lubricating oil in the oil groove 24 and the oil brush 5 from leaking.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. A bearing having high wear resistance, characterized in that the bearing having high wear resistance comprises:
the roller brush comprises an inner ring (1), an outer ring (2), a roller (3), a rolling shaft (4) and an oil brush (5);
baffle plates (21) extend from two end parts of the outer ring (2) to the direction of the circle center, and a plurality of shaft holes (22) are formed in the baffle plates (21);
the roller (3) is sleeved on the rolling shaft (4), and the roller (3) can rotate on the rolling shaft (4);
two ends of the roller (4) are arranged in the shaft hole (22) in an interference manner, so that the roller (3) is fixed on the outer ring (2);
the oil brush (5) is embedded between the two baffles (21), and the oil brush (5) is also positioned between the two adjacent rollers (3);
the oil brush (5) is abutted with the roller (3), and when the roller (3) rotates, the oil brush (5) can wipe the outer surface of the roller (3);
the inner ring (1) is embedded in the outer ring (2), and the outer circular surface of the inner ring (1) is abutted against the roller (3) and the oil brush (5);
when the inner ring (1) rotates, the inner ring (1) can drive the roller (3) to rotate, and the oil brush (5) can wipe the outer circular surface of the inner ring (1).
2. Bearing with high wear resistance according to claim 1, characterized in that an oil seal (6) is further provided between the inner ring (1) and the outer ring (2).
3. The bearing with high wear resistance according to claim 3, wherein the baffle (21) is further provided with a groove (23), the outer circumference of the oil seal (6) is provided with a boss (61), and the boss (61) is embedded in the groove (23).
4. A bearing with high wear resistance according to claim 3, wherein the inner wall of the outer ring (2) is further provided with an oil groove (24), and the oil groove (24) stores lubricating oil.
5. The bearing with high wear resistance according to claim 4, wherein the outer ring (2) is provided with oil holes (25) on the outer wall, and the oil holes (25) are communicated with the oil grooves (24).
6. The bearing with high wear resistance according to claim 5, wherein the oil filler hole (25) is provided with an oil plug (26), and the oil plug (26) is used for blocking the oil filler hole (25).
7. Bearing with high wear resistance according to claim 6, characterized in that the oil grooves (24) are distributed longitudinally or transversely or obliquely on the inner wall of the outer ring (2).
8. The bearing with high wear resistance according to claim 7, wherein the oil gallery (24) is longitudinally and transversely combined and distributed on the inner wall of the outer ring (2).
9. Bearing with high wear resistance according to claim 8, characterized in that the oil brush (5) is an oil absorbing cotton or felt or an oil absorbing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284379.5A CN112628282A (en) | 2020-11-17 | 2020-11-17 | Bearing with high wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011284379.5A CN112628282A (en) | 2020-11-17 | 2020-11-17 | Bearing with high wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628282A true CN112628282A (en) | 2021-04-09 |
Family
ID=75303640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011284379.5A Pending CN112628282A (en) | 2020-11-17 | 2020-11-17 | Bearing with high wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427566A (en) * | 2022-01-14 | 2022-05-03 | 北京轩宇智能科技有限公司 | Rolling bearing and rotating device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5529401A (en) * | 1993-11-22 | 1996-06-25 | Skf Industrial Trading And Development Company B.V. | Rolling element bearing comprising an oil containing matrix |
| JP2000087982A (en) * | 1998-09-17 | 2000-03-28 | Ntn Corp | Rolling bearing for semiconductor manufacturing facility |
| CN101055003A (en) * | 2006-04-13 | 2007-10-17 | Ntn株式会社 | Rolling bearing |
| CN102434577A (en) * | 2011-12-14 | 2012-05-02 | 华东交通大学 | Rolling and sliding bearing with outer ring as sleeve |
| CN102494021A (en) * | 2011-12-19 | 2012-06-13 | 华东交通大学 | Oil lubricating roll-slide bearing with elastic roller |
| CN203670473U (en) * | 2014-01-20 | 2014-06-25 | 温岭市鑫标精密轴承有限公司 | Cylindrical roller bearing |
| CN211343743U (en) * | 2019-12-30 | 2020-08-25 | 大连博新科技有限公司 | Split bearing retainer |
| CN211737774U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | Low-noise cylindrical roller bearing |
| CN211737768U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | High-precision cylindrical roller bearing |
| CN211737749U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | High-performance cylindrical roller bearing |
| CN211820387U (en) * | 2020-03-24 | 2020-10-30 | 绍兴富龙轴承有限公司 | High-stability cylindrical roller bearing |
-
2020
- 2020-11-17 CN CN202011284379.5A patent/CN112628282A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5529401A (en) * | 1993-11-22 | 1996-06-25 | Skf Industrial Trading And Development Company B.V. | Rolling element bearing comprising an oil containing matrix |
| JP2000087982A (en) * | 1998-09-17 | 2000-03-28 | Ntn Corp | Rolling bearing for semiconductor manufacturing facility |
| CN101055003A (en) * | 2006-04-13 | 2007-10-17 | Ntn株式会社 | Rolling bearing |
| CN102434577A (en) * | 2011-12-14 | 2012-05-02 | 华东交通大学 | Rolling and sliding bearing with outer ring as sleeve |
| CN102494021A (en) * | 2011-12-19 | 2012-06-13 | 华东交通大学 | Oil lubricating roll-slide bearing with elastic roller |
| CN203670473U (en) * | 2014-01-20 | 2014-06-25 | 温岭市鑫标精密轴承有限公司 | Cylindrical roller bearing |
| CN211343743U (en) * | 2019-12-30 | 2020-08-25 | 大连博新科技有限公司 | Split bearing retainer |
| CN211737774U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | Low-noise cylindrical roller bearing |
| CN211737768U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | High-precision cylindrical roller bearing |
| CN211737749U (en) * | 2020-03-12 | 2020-10-23 | 绍兴富龙轴承有限公司 | High-performance cylindrical roller bearing |
| CN211820387U (en) * | 2020-03-24 | 2020-10-30 | 绍兴富龙轴承有限公司 | High-stability cylindrical roller bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427566A (en) * | 2022-01-14 | 2022-05-03 | 北京轩宇智能科技有限公司 | Rolling bearing and rotating device |
| CN114427566B (en) * | 2022-01-14 | 2024-02-06 | 北京轩宇智能科技有限公司 | Rolling bearing and rotating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5633185B2 (en) | Rolling bearing | |
| WO2011102303A1 (en) | Rolling bearing lubrication structure and rolling bearing | |
| US8087222B2 (en) | Cotton picker spindle with grease reservoir and a grease and dirt seal | |
| JP2007032612A (en) | Roller bearing | |
| CN112703328A (en) | Large rolling bearing | |
| CN112628282A (en) | Bearing with high wear resistance | |
| CN108757743B (en) | Self-lubricating bearing | |
| CN109812497B (en) | Self-adaptive bearing | |
| JP2011208662A (en) | Rolling bearing | |
| CN111630286A (en) | Sealing device | |
| CN209943174U (en) | Water pump bearing with high waterproof performance | |
| CN209797224U (en) | Driving chain | |
| CN114776583B (en) | Combined roller device for roller rotor pump and centering positioning method | |
| JP5018334B2 (en) | Rolling bearing device | |
| CN115822495A (en) | Sealing liquid lubricating roller device for well finishing tool | |
| JP2004124995A (en) | Rolling bearing | |
| CN201982516U (en) | Roller bearing cage | |
| CN212928530U (en) | High-pressure washer bearing | |
| CN212225786U (en) | Long cylindrical roller bearing capable of being maintained without adding oil for long time | |
| JP2007040512A (en) | Tapered roller bearing | |
| CN210770082U (en) | Ball spline with lubricating mechanism | |
| CN109707730B (en) | Open type double-row four-point angular contact ball bearing | |
| CN220523092U (en) | Cage for offset bearing | |
| CN218992143U (en) | Cylindrical roller bearing with high stability | |
| CN216478440U (en) | Sealing structure of spiral spring bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |