CN112570375A - Server dust collector - Google Patents
Server dust collector Download PDFInfo
- Publication number
- CN112570375A CN112570375A CN202011272813.8A CN202011272813A CN112570375A CN 112570375 A CN112570375 A CN 112570375A CN 202011272813 A CN202011272813 A CN 202011272813A CN 112570375 A CN112570375 A CN 112570375A
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- CN
- China
- Prior art keywords
- air
- dust
- server
- dust removal
- box
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 184
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a server dust removal device, wherein a server is placed in a dust removal box during dust removal; the air supply device comprises a high-pressure fan, the high-pressure fan supplies air to the interior of the dust removal box through an air supply pipe, one end, used for air outlet, of the air supply pipe is connected with an air guide block, an air hole is formed in the air guide block, air flow is blown to a server placed in the dust removal box through the air hole, the air guide block can move in the dust removal box to blow air, and dust is blown down from the server through high-speed air flow generated by the high-pressure fan and mixed into air; the dust collection device comprises an exhaust fan and a dust collection box, the exhaust fan sucks air through an exhaust pipe communicated with the interior of the dust collection box, after dust is blown down, the air containing the dust in the dust collection box is extracted and sent into the dust collection box, and the server is taken out after the dust is filtered; the invention adopts high-speed airflow to blow off dust on the server, and then extracts air containing the dust and collects the dust, so that the dust on the server can be better removed compared with the traditional mode of directly sucking dust.
Description
Technical Field
The invention relates to the field of dust removing equipment, and further relates to a server dust removing device.
Background
The server during operation calorific capacity is great, and devices such as CPU, display card, hard disk all can produce the heat, need in time cooling, and the cooling method that is the most common to the server at present is forced air cooling, utilizes the fan to produce the air current with outside cold air introduction server inside, takes place the heat exchange when the air current passes through devices such as CPU, display card, hard disk, the heat that the device that generates heat produced makes the air heat-up to reduce the temperature of each device, guarantee to work normally.
Before air is introduced from the outside, the air is usually filtered, impurities such as dust entering the inside of the server are reduced, but the impurities cannot be completely removed through filtering, dust still accumulates inside the server after the server is used for a long time, and regular maintenance is needed. In the traditional dust removal mode, dust is removed manually by wiping with a wet towel, or a dust collector is used for stretching into a server to absorb dust; each device on the mainboard has numerous narrow gaps, and dust in a large and flat area can only be removed by manual wiping, so that numerous dead corners exist; the dust collector is difficult to extend into a narrow gap for dust collection, can only collect dust in a long distance, and has higher requirement on suction force.
For those skilled in the art, how to quickly and effectively remove dust inside a server is a technical problem that needs to be solved at present.
Disclosure of Invention
The invention provides a server dust removal device, which can blow dust by blowing air firstly and then suck air to collect dust, and can quickly and effectively remove the dust in a server, and the specific scheme is as follows:
a server dust removal device comprises a dust removal box, an air supply device and a dust collection device, wherein a cavity for placing a server is formed in the dust removal box;
the air supply device comprises a high-pressure fan, the high-pressure fan supplies air to the interior of the dust removal box through an air supply pipe, one end, used for air outlet, of the air supply pipe is connected with an air guide block, an air hole is formed in the air guide block, and air flow is blown to a server placed in the dust removal box through the air hole; the air guide block can move in the dust removal box for blowing air;
dust extraction includes air exhauster and dust collection box, the air exhauster through communicate in the inside exhaust column suction gas of dust removal incasement portion will the gas that contains the dust in the dust removal incasement is taken out and is sent into the dust collection box.
Optionally, the opposite both sides in the inboard of dust removal case set up the guide rail, the both ends of air guide piece respectively with the guide rail cooperation direction makes air guide piece slides along linear translation.
Optionally, the air guide block is mounted on a fixed frame, two ends of the fixed frame are respectively provided with a round rod, and the round rods are rotatably connected with rotating wheels; the guide rail is a linear groove formed in the inner wall of the dust removal box, and the rotating wheel can stretch into the groove to move in a guiding mode.
Optionally, the air guide block is a flat block structure, and the air holes are uniformly formed in the air guide block.
Optionally, the air guide block is driven to translate by a telescopic rod installed on the dust removal box.
Optionally, the air supply pipe is a stretchable and compressible corrugated pipe, and the telescopic rod is an air cylinder or an electric cylinder.
Optionally, a clamping groove is formed in the inner wall of the dust collection box and used for clamping a limiting filter screen in the circumferential direction, and air entering the dust collection box from the exhaust pipe is filtered and dedusted by the filter screen; and a pull ring is arranged on the filter screen.
Optionally, the bottom surfaces of two opposite side edges of the dust removal box extend outwards to form fixed plates, and the high-pressure fan and the exhaust fan are respectively installed on the fixed plates on two sides.
Optionally, the dust removal case includes lower box and upper cover, install the handle on the upper cover.
Optionally, universal wheels are mounted at the bottom of the dust removal box.
The invention provides a server dust removal device.A cavity for placing a server is arranged in a dust removal box, and the server is placed in the dust removal box during dust removal; the air supply device comprises a high-pressure fan, the high-pressure fan supplies air to the interior of the dust removal box through an air supply pipe, the air supply pipe extends into the interior of the dust removal box, one end, used for air outlet, of the air supply pipe is connected with an air guide block, an air hole is formed in the air guide block, air flow is blown to a server placed in the dust removal box through the air hole, the air guide block can move in the dust removal box to blow air, and dust is blown down from the server through high-speed air flow generated by the high-pressure fan and mixed into the air; the dust collection device comprises an exhaust fan and a dust collection box, wherein the exhaust fan sucks gas through an exhaust pipe communicated with the interior of the dust collection box, and after the dust is blown down, the gas containing the dust in the dust collection box is extracted and sent into the dust collection box, and the server is taken out to complete dust collection operation until the gas containing the dust in the dust collection box is completely extracted; the invention adopts high-speed airflow to blow off dust on the server, and then extracts air containing the dust and collects the dust, so that the dust on the server can be better removed compared with the traditional mode of directly sucking dust.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of one embodiment of a server dust collector provided by the present invention;
fig. 2A is an exploded view of the server dust removing apparatus provided by the present invention with the air supply duct and the air guide block removed;
FIG. 2B is an exploded view of the air supply pipe and the air guide block being engaged with each other;
FIG. 3 is an exploded view of the various components of the dust extraction;
FIG. 4A is a view showing the structure of the fixing frame;
fig. 4B is a schematic structural diagram of the air guide block.
The figure includes:
the dust removal device comprises a dust removal box 1, a guide rail 11, a fixing plate 12, a lower box body 13, an upper cover 14, a handle 15, universal wheels 16, an air supply device 2, a high-pressure fan 21, an air supply pipe 22, an air guide block 23, an air hole 231, a fixing frame 24, a round rod 241, a rotating wheel 242, an expansion rod 25, a dust suction device 3, an exhaust fan 31, a dust collection box 32, a clamping groove 321, a filter screen 322, a pull ring 323 and an exhaust pipe 33.
Detailed Description
The core of the invention is to provide the server dust removal device, which can blow dust by blowing air and then suck air to collect the dust, so that the dust in the server can be removed quickly and effectively.
In order to make those skilled in the art better understand the technical solution of the present invention, the server dust removing device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an exploded view of an embodiment of a server dust removing device provided by the present invention; fig. 2A is an exploded view of the server dust removing apparatus provided by the present invention with the air supply pipe 22 and the air guide block 23 removed, and fig. 2B is an exploded view of the air supply pipe 22 and the air guide block 23 being engaged with each other; the server dust removal device comprises a dust removal box 1, an air supply device 2, a dust suction device 3 and the like, wherein a cavity for placing a server is formed in the dust removal box 1, the server is placed in the dust removal box 1 when the server dust removal device is used, the dust removal box 1 is of a relatively closed structure, and gas cannot leak from other positions except an air inlet and outlet structure.
The air supply device 2 comprises a high-pressure fan 21, the high-pressure fan 21 supplies air to the interior of the dust removal box 1 through an air supply pipe 22, one part of the air supply pipe 22 is positioned outside the dust removal box 1, the other part of the air supply pipe 22 extends into the interior of the dust removal box 1, and one end, outside the dust removal box 1, of the air supply pipe 22 is used for supplying air and is connected to the high-pressure fan 21; the blast pipe 22 is used for the air-out at the inside one end of dust removal case 1, and blast pipe 22 is used for the one end of air-out to connect air guide block 23, and air guide block is a solid-state solid structure, has injectd the position that the air current flows out.
The air guide block 23 is provided with an air hole 231, the air flow is blown to the server arranged in the dust removing box 1 through the air hole 231, the high-pressure fan 21 is used for generating high-pressure air flow, and the high-speed air flow is guaranteed to be accurately blown to a specified position through the air hole 231 formed in the air guide block 23. The air guide block 23 can move in the dust removal box 1 for blowing air, and the air is blown to all positions of the server by adjusting the position of the air guide block 23; in order to ensure that the air flow flows at a high speed, the size of the air holes 231 cannot be too large, and the air flow is ensured to be blown intensively, so that the blown air flow cannot cover all positions of the servers at the same time, and therefore, the air flow needs to be blown to the servers in several times by changing the positions of the air holes 231.
As shown in fig. 3, which is an exploded view of the various components of the suction device 3, the airflow is in the direction of the arrows; the dust collector 3 comprises an exhaust fan 31 and a dust collection box 32, wherein the exhaust fan 31 sucks air through an exhaust pipe 33 communicated with the inside of the dust collection box 1, negative pressure is formed when a workpiece is drawn by the exhaust fan 31, the air containing dust in the dust collection box 1 is extracted and sent into the dust collection box 32, the air is filtered in the dust collection box 32, and the dust is collected in the dust collection box 32.
When the server dust removal device is used, a server to be subjected to dust removal is placed in the dust removal box 1, and the dust removal box 1 is kept closed; then starting a high-pressure fan 21 to generate high-speed airflow, wherein the high-speed airflow flows along an air supply pipe 22 and is finally blown out from an air guide block 23, the high-speed airflow is directly blown to a position right opposite to the server, impurities such as dust on the server are blown down, the impurities are mixed and float in the air, and all the impurities at the moment are in the dust removal box 1; by moving and adjusting the position of the air guide block 23, high-speed air flow is blown to each corner of the server in sequence, and dust on the server is blown down completely. Subsequently, the exhaust fan 31 is started, the exhaust fan 31 generates a negative pressure, the air in the dust box 1 flows out along the exhaust pipe 33 and finally reaches the dust box 32, the air is filtered in the dust box 32, the filtered air is discharged into the atmosphere, and the dust and impurities blown out along with the air are collected in the dust box 32. The suction fan 31 may be operated simultaneously with the high pressure blower 21 or may be started when the high pressure blower 21 stops operating.
The server dust removal device disclosed by the invention has the advantages that the dust on the server is blown off by adopting the high-speed airflow, then the air containing the dust is extracted and collected, the dust removal process comprises two processes of air blowing and air suction, the dust on the server can be blown off better by the high-speed airflow generated in the air blowing process, and compared with the traditional direct dust collection mode, the device has stronger impact on the dust and can better remove the dust on the server.
On the basis of the scheme, the guide rails 11 are arranged on two opposite sides of the inner side of the dust removing box 1, and two ends of the air guide block 23 are respectively matched with the guide rails 11 for guiding, so that the air guide block 23 can linearly and horizontally slide. The width of the whole air guide block 23 is approximately equal to that of the server, and the surface of the server can be completely covered only by moving the air guide block 23 along the length direction of the server; during operation, the air guide block 23 only needs to move linearly in a reciprocating mode along one direction, and does not need to do planar two-dimensional motion, so that the structure is simplified.
Specifically, as shown in fig. 4A, it is a structural view of the fixing frame 24; the air guide block 23 is arranged on the fixed frame 24, and the fixed frame 24 is in a rectangular square frame structure and surrounds the periphery of the air guide block 23; the fixing frame 24 is provided with two round bars 241 at its two ends in the length direction, two round bars 241 are provided at each end in the figure, the round bars 241 are rotatably connected with a rotating wheel 242, and the rotating wheel 242 uses the round bars 241 as the rotating shaft. The guide rail 11 is a linear groove formed in the inner wall of the dust removing box 1, the rotating wheel 242 can extend into the groove to move in a guiding mode, and friction force is reduced through the rotating wheel 242.
The above-mentioned guide rail structure is only a preferred embodiment of the present invention, and any solution that can make the air guiding block 23 laterally guide and translate should be included in the protection scope of the present invention.
As shown in fig. 4B, it is a schematic structural diagram of the air guide block 23; the air guide block 23 is of a flat block structure, the air holes 231 are uniformly formed in the air guide block 23, and the air guide block 23 is of a long strip structure and can generate strip-shaped air flow; the wind hole 231 shown in fig. 4B is a plurality of dot-shaped structures, and besides, the wind hole 231 may be provided as a single body, and these specific embodiments are all included in the protection scope of the present invention.
On the basis of any one of the technical schemes and the mutual combination thereof, the air guide block 23 is driven to translate through the telescopic rod 25 arranged on the dust removal box 1, the telescopic rod 25 is used as a driving structure of the dust removal box 1, the air guide block 23 is driven to translate through the extension and retraction of the telescopic rod 25, and the air guide block 23 is guided through the guide rails 11 on the two sides when translating.
Preferably, the air supply pipe 22 in the present invention is a stretchable and compressible bellows, which changes length by folding and compressing, and occupies a longer space when being contracted; the telescopic rod 25 is a cylinder or an electric cylinder and is driven in an electric control or pneumatic control mode.
As shown in fig. 3, the dust collecting box 32 is a cavity structure without a solid surface on the upper surface, and the inner walls around the dust collecting box 32 are provided with slots 321, the slots 321 are used for circumferentially clamping the limiting filter screen 322, and the periphery of the filter screen 322 is clamped into the slots 321 to limit and fix the filter screen 322. The air introduced into the dust box 32 from the exhaust duct 33 is filtered and dedusted by the filter screen 322, the air containing dust is introduced into the space below the filter screen 322, the dust is filtered by the filter screen 322, and the clean air is discharged to the outside through the filter screen 322.
Preferably, a pull ring 323 is installed on the filter screen 322, and the pull ring 323 can be a ring-shaped or cylindrical structure to facilitate the hand holding when the filter screen 322 is taken out.
The bottom surfaces of two opposite side edges of the dust removing box 1 extend outwards to form fixing plates 12, the fixing plates 12 are fixedly connected with the dust removing box 1, the high-pressure fan 21 and the exhaust fan 31 are respectively installed on the fixing plates 12 on two sides, as shown in fig. 1, the high-pressure fan 21 is installed on the fixing plate 12 on the left side, the exhaust fan 31 is installed on the fixing plate 12 on the right side, and the high-pressure fan 21 and the exhaust fan 31 are supported by the fixing plates.
The dust removal box 1 comprises a lower box body 13 and an upper cover 14, the lower box 13 surrounds the bottom surface and four side walls, the upper cover 14 is of a plane structure, and a closed cavity is formed when the upper cover 14 is arranged on the lower box body 13 in a covering mode; the upper cover 14 is provided with a handle 15 for easy lifting, and the upper cover 14 needs to be separated from the lower box body 13 before the server is taken and placed.
Preferably, the universal wheels 16 are arranged at the bottom of the dust removing box 1, and the universal wheels 16 are used for facilitating integral movement.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The server dust removal device is characterized by comprising a dust removal box (1), an air supply device (2) and a dust collection device (3), wherein a cavity for placing a server is formed in the dust removal box (1);
the air supply device (2) comprises a high-pressure fan (21), the high-pressure fan (21) supplies air to the interior of the dust removal box (1) through an air supply pipe (22), one end, used for supplying air, of the air supply pipe (22) is connected with an air guide block (23), an air hole (231) is formed in the air guide block (23), and air flow is blown to a server placed in the dust removal box (1) through the air hole (231); the air guide block (23) can move and blow air in the dust removal box (1);
dust extraction (3) include air exhauster (31) and dust collection box (32), air exhauster (31) through communicate in inside exhaust column (33) suction gas of dust removal case (1), will the gas that contains the dust in dust removal case (1) is taken out and is sent into dust collection box (32).
2. The server dust removing device according to claim 1, wherein guide rails (11) are arranged on two opposite sides of the inner side of the dust removing box (1), and two ends of the air guide block (23) are respectively matched and guided with the guide rails (11) so that the air guide block (23) can linearly and translationally slide.
3. The server dust removing device according to claim 2, wherein the air guide block (23) is mounted on a fixing frame (24), two ends of the fixing frame (24) are respectively provided with a round rod (241), and the round rod (241) is rotatably connected with a rotating wheel (242); the guide rail (11) is a straight groove formed in the inner wall of the dust removal box (1), and the rotating wheel (242) can stretch into the groove to move in a guiding mode.
4. The server dust removing device according to claim 2, wherein the air guide block (23) is a flat block structure, and the air holes (231) are uniformly formed in the air guide block (23).
5. The server dust removal device according to any one of claims 1 to 4, wherein the air guide block (23) is driven to translate by a telescopic rod (25) mounted on the dust removal box (1).
6. The server dust removing apparatus according to claim 5, wherein the air supply pipe (22) is a bellows that can be stretched and compressed, and the expansion rod (25) is an air cylinder or an electric cylinder.
7. The server dust removing device according to claim 5, wherein a clamping groove (321) is formed in the inner wall of the dust collection box (32), the clamping groove (321) is used for clamping a limiting filter screen (322) in the circumferential direction, and air entering the dust collection box (32) from the exhaust pipe (33) is filtered and dedusted by the filter screen (322); and a pull ring (323) is arranged on the filter screen (322).
8. The server dust removing device according to claim 5, wherein fixing plates (12) are outwardly extended from bottom surfaces of two opposite side edges of the dust removing box (1), and the high pressure fan (21) and the exhaust fan (31) are respectively installed on the fixing plates (12) at two sides.
9. The server dust removal device according to claim 5, wherein the dust removal box (1) comprises a lower box body (13) and an upper cover (14), and a handle (15) is mounted on the upper cover (14).
10. The server dust removal device according to claim 5, wherein universal wheels (16) are mounted at the bottom of the dust removal box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272813.8A CN112570375A (en) | 2020-11-13 | 2020-11-13 | Server dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272813.8A CN112570375A (en) | 2020-11-13 | 2020-11-13 | Server dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112570375A true CN112570375A (en) | 2021-03-30 |
Family
ID=75122611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011272813.8A Pending CN112570375A (en) | 2020-11-13 | 2020-11-13 | Server dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112570375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445294A (en) * | 2021-07-14 | 2021-09-28 | 王树明 | Non-woven fabric preparation process and non-woven fabric |
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| CN209124591U (en) * | 2018-11-28 | 2019-07-19 | 贵州浪潮英信科技有限公司 | A kind of server automatic dust removing apparatus |
| CN210040999U (en) * | 2019-06-27 | 2020-02-07 | 常德三欣电力电子科技有限公司 | Dust removal device for distribution box |
| CN111195631A (en) * | 2020-03-09 | 2020-05-26 | 杭州富阳浮想电脑有限公司 | Ash removal device of server |
| CN210647531U (en) * | 2019-08-01 | 2020-06-02 | 天津冬青动力科技有限公司 | Dust cleaning device for generator set |
| CN211090430U (en) * | 2019-12-18 | 2020-07-24 | 四川同扬信息科技有限公司 | Dustproof heat dissipation type rack of network security |
| CN211478245U (en) * | 2020-01-09 | 2020-09-11 | 佛山市润城乾祥环保服务有限公司 | Air quality detection system capable of automatically and regularly removing dust |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577286A (en) * | 2017-08-23 | 2018-01-12 | 陈彬 | A kind of computer host box dust arrester and its method of work |
| CN108580436A (en) * | 2018-03-12 | 2018-09-28 | 吴江麦道纺织有限公司 | A kind of textile machine dust-extraction unit |
| CN209124591U (en) * | 2018-11-28 | 2019-07-19 | 贵州浪潮英信科技有限公司 | A kind of server automatic dust removing apparatus |
| CN210040999U (en) * | 2019-06-27 | 2020-02-07 | 常德三欣电力电子科技有限公司 | Dust removal device for distribution box |
| CN210647531U (en) * | 2019-08-01 | 2020-06-02 | 天津冬青动力科技有限公司 | Dust cleaning device for generator set |
| CN211090430U (en) * | 2019-12-18 | 2020-07-24 | 四川同扬信息科技有限公司 | Dustproof heat dissipation type rack of network security |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113445294A (en) * | 2021-07-14 | 2021-09-28 | 王树明 | Non-woven fabric preparation process and non-woven fabric |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |