CN112344917A - Pipeline butt joint auxiliary device and pipeline butt joint method - Google Patents
Pipeline butt joint auxiliary device and pipeline butt joint method Download PDFInfo
- Publication number
- CN112344917A CN112344917A CN202011179034.3A CN202011179034A CN112344917A CN 112344917 A CN112344917 A CN 112344917A CN 202011179034 A CN202011179034 A CN 202011179034A CN 112344917 A CN112344917 A CN 112344917A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pipe
- lifting rod
- fixing device
- laser
- 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
- 210000001503 joint Anatomy 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000003032 molecular docking Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/008—Active optical surveying means combined with inclination sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a pipeline butt joint auxiliary device and a pipeline butt joint method, wherein a butt joint device is arranged on a first pipeline and a second pipeline to be butt jointed, the butt joint device comprises a first fixing device arranged at a pipe orifice at one end of the first pipeline, which is far away from the second pipeline, a first lifting rod inserted in the first fixing device, a laser level meter arranged on the first lifting rod in a detachable mode, a second fixing device arranged at a pipe orifice at one end of the second pipeline, which is far away from the first pipeline, a second lifting rod inserted in the second fixing device and a light receiving target arranged on the second lifting rod in a detachable mode. The invention has simple structure and convenient use, ensures that the axes are consistent in the horizontal and height directions when the pipelines are installed and butted, greatly improves the precision and quality of the pipeline butt joint, and also improves the construction efficiency.
Description
Technical Field
The invention belongs to the technical field of pipeline installation and construction, and particularly relates to a pipeline butt joint auxiliary device and a pipeline butt joint method.
Background
In the middle of the existing pipeline installation construction process, the horizontal direction of pipeline installation is uneven and the height of a pipeline is uneven, so that the related construction quality of pipeline construction cannot be controlled, and the butt joint quality of the pipeline is also influenced. With the development of modern society, the requirement for accurate construction of pipeline butt joint is higher and higher. However, most of the existing centering modes of the pipeline are original and rough, most of the existing centering modes completely depend on visual centering, the centering time is long, the centering precision is not high, and the accurate installation of the pipeline according to a preset axis cannot be guaranteed. In the existing construction operation, a plurality of pipelines with different pipe diameters can be installed in the same construction site, so that various centering fixing pieces with different specifications are required to be used for respectively centering and fixing the pipelines with different pipe diameters. Not only causes the number of the centering fixing pieces and the models to be large, and is not easy to manufacture and carry, but also causes the operation of centering fixing operation to be fussy.
Disclosure of Invention
The invention aims to provide a pipeline butt joint auxiliary device aiming at the defects of the prior art, the butt joint auxiliary device ensures that the axes are consistent in the horizontal and height directions when the pipelines are installed and butted, and the precision, the quality and the construction efficiency of the pipeline butt joint are greatly improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a pipeline butt joint auxiliary device, butt joint auxiliary device sets up on waiting to dock first pipeline and second pipeline, butt joint device is including setting up the first fixing device of keeping away from an end mouth of pipe department of second pipeline at first pipeline, inserting the first lifter of establishing in first fixing device, set up the laser level appearance on first lifter through the detachable mode, set up the second fixing device of keeping away from an end mouth of pipe department of first pipeline at the second pipeline, insert and establish second lifter in the second fixing device and through the receipt light target of detachably mode setting on the second lifter.
Further, the first fixing device and the second fixing device are identical in structure and respectively comprise a sleeve and clamping devices symmetrically arranged at two ends of the sleeve, the clamping devices are perpendicularly sleeved on the end side of the sleeve, the clamping devices at two ends of the sleeve are screwed when the sleeve is fastened, and the two clamping devices are clamped on the pipe wall of the pipe orifice of the first pipeline or the pipe orifice of the second pipeline.
Furthermore, the clamping devices comprise connecting rods vertically sleeved on the sleeves, connecting pipes vertically arranged on the end sides of the connecting rods and connecting bolts in threaded connection with the connecting pipes, when the connecting bolts are fastened, the connecting bolts are screwed, and the connecting bolts on the two clamping devices extend out of the connecting pipes so as to clamp the pipe wall at the pipe orifice of the first pipeline or the pipe orifice of the second pipeline.
Further, the laser level meter is connected with the first lifting rod through threads.
Further, the light receiving target is connected with the second lifting rod through threads.
Further, millimeter-scale scales are arranged on the second lifting rod.
Another object of the present invention is to provide a pipe docking method of the above pipe docking auxiliary device, including the following steps:
the method comprises the following steps: fixing a first fixing device on the wall of an end pipe orifice of the first pipeline far away from the second pipeline, inserting a first lifting rod into the first fixing device, connecting the laser level meter with the first lifting rod in a detachable mode, and leveling and centering the laser level meter; then a second fixing device is arranged at the pipe orifice of one end of the second pipeline, which is far away from the first pipeline, a second lifting rod is inserted into the second fixing device, and finally the light receiving target is detachably arranged on the second lifting rod and leveled;
step two: respectively placing a first pipeline and a second pipeline at positions to be installed in a construction area, opening a laser level meter, projecting laser by the laser level meter, receiving the laser by a light target, and obtaining the height of the laser deviating from a target center;
step three: calculating according to the plane positions of the first pipeline and the second pipeline, the height of the laser deviating from the target center and the pipe diameter difference value of the first pipeline and the second pipeline, calculating the height of the first lifting rod or the second lifting rod which needs to be adjusted when the gradient ratio is 0 and the first pipeline and the second pipeline are centered, and adjusting the height of the first lifting rod or the second lifting rod according to the calculated adjusting height so that the center of a circle of the light target is received in the middle of the laser projected by the adjusted laser level;
step four: butting the first pipeline and the second pipeline, and keeping the laser projected by the laser level meter projected at the circle center of the receiving light target in the butting process;
step five: after the first pipeline and the second pipeline are butted, the pipeline butting device is detached from the first pipeline and the second pipeline, and the related pipeline behind is installed by adopting the method, and the related steps are consistent with the steps in the front.
And furthermore, millimeter-scale scales are arranged on the second lifting rod, and the height of the second lifting rod is adjusted according to the calculated adjusting height and the scales on the second lifting rod in the third step.
Compared with the prior art, the invention has the beneficial effects that:
1) in the process of pipeline installation and butt joint, the pipeline butt joint auxiliary device is fixed at two ends of two pipelines to be butted, and the laser spot of the receiving light target is positioned at the circle center when the two pipelines are centered by reading the numerical value on the laser level meter and the relevant numerical value of the receiving light target for measurement and adjustment, so that the laser level meter and the receiving light target can ensure the horizontal direction consistency and the height consistency of pipeline installation and butt joint, and the pipeline installation precision and the quality and the attractiveness of pipeline installation are improved;
2) the lifting rod can effectively ensure the related construction quality of pipeline installation and greatly reduce the space occupancy rate;
3) can be fixed in two fixing device in mouth of a pipe department through the fixer, be favorable to stability and convenience in the work progress, improve construction precision and work efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a pipe docking auxiliary device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first lift pin and laser level according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first fixing device/a second fixing device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second lift pin according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a light receiving target according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
As shown collectively in fig. 1, 2, 3, 4 and 5, the present invention provides a pipe docking assistance device which is provided on a first pipe 1 and a second pipe 2 to be docked. The butt joint auxiliary device comprises a first fixing device 3 arranged at one end pipe orifice of the first pipeline 1 far away from the second pipeline 2, a first lifting rod 4 inserted in the first fixing device 3, a laser level 5 arranged on the first lifting rod 4 in a detachable mode, a second fixing device 6 arranged at one end pipe orifice of the second pipeline 2 far away from the first pipeline 1, a second lifting rod 7 inserted in the second fixing device 6 and a light receiving target 8 arranged on the second lifting rod 7 in a detachable mode. The first fixing device 3 and the second fixing device 4 are identical in structure and respectively comprise a sleeve 9 and clamping devices symmetrically arranged at two ends of the sleeve, the clamping devices are vertically sleeved on the end side of the sleeve 9, when the sleeve is fastened, the clamping devices at two ends of the sleeve are screwed, and the two clamping devices are clamped on the pipe wall of the pipe orifice of the first pipeline or the second pipeline.
In the present embodiment, the clamping devices include a connecting rod 10 vertically sleeved on the sleeve 9, a connecting pipe 11 vertically arranged on the end side of the connecting rod 10, and a connecting bolt 12 in threaded connection with the connecting pipe 11, the connecting bolts 12 on the two clamping devices are oppositely arranged, when fastening, the connecting bolt 12 is screwed, and the connecting bolts 12 on the two clamping devices extend out from the connecting pipe 11 so as to clamp the pipe wall of the first pipe 1 or the second pipe 2. In order to facilitate disassembly and assembly, an external thread is arranged at the top of the first lifting rod 4, an internal thread is arranged on the base of the laser level meter 5, and the first lifting rod 4 is connected with the laser level meter 5 through the thread. The light receiving target 8 and the second lifting rod 7 are also connected by the screw connection method. In order to adjust the height of the light receiving target 8 accurately, the second lifting rod 8 is provided with a millimeter scale 13.
The invention also provides a pipeline butt joint method of the pipeline butt joint device, which comprises the following steps:
the method comprises the following steps: screwing two oppositely arranged connecting bolts on the first fixing device 3 so that the two connecting bolts respectively extend out of the corresponding connecting pipes to be clamped on the side wall of the pipe orifice at one end of the first pipeline 1, which is far away from the second pipeline 2, inserting the first lifting rod 4 into the connecting rod on the first fixing device 3, connecting the laser level meter 5 with the top end of the first lifting rod 4 through threads, and leveling and centering the laser level meter 5; then, a second fixing device 6 is installed at the pipe orifice of one end, far away from the first pipe 1, of the second pipe 2, two connecting bolts which are oppositely arranged on the second fixing device 6 are screwed, so that the two connecting bolts extend out of corresponding connecting pipes to be clamped on the side wall of the pipe orifice of one end, far away from the first pipe 1, of the second pipe 2, then a second lifting rod 7 is inserted into the connecting pipe of the second fixing device 6, and finally a light receiving target 8 is connected with the top end of the second lifting rod 7 through threads and leveled;
step two: respectively placing a first pipeline 1 and a second pipeline 2 at positions to be installed in a construction area, opening a laser level 5, projecting laser by the laser level 5, and receiving laser by a light receiving target 8;
step three: calculating according to the plane positions of the first pipeline 1 and the second pipeline 2, the height of the laser deviating from the target center and the difference value of the pipe diameters of the first pipeline 1 and the second pipeline 2, and calculating the height of the first lifting rod 4 or the second lifting rod 7 which needs to be adjusted when the gradient ratio is 0 and the first pipeline 1 and the second pipeline 2 are centered, wherein in the embodiment, the second lifting rod 7 is adjusted according to the calculated adjusting height and the scale on the second lifting rod 7 so that the center of a circle of the laser center projected by the adjusted laser level 5 receives the light target 8;
step four: butting the first pipeline 1 and the second pipeline 2, and keeping the laser projected by the laser level 5 projected at the circle center of the light receiving target 8 in the butting process;
step five: after the first pipeline 1 and the second pipeline 2 are butted, the pipeline butting device is detached from the first pipeline 1 and the second pipeline 2, and the related pipeline behind is installed by adopting the method, and the related steps are consistent with the steps in the front.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a pipeline butt joint auxiliary device, its characterized in that, interfacing apparatus sets up on waiting to dock first pipeline and second pipeline, interfacing apparatus is including setting up the first fixing device of keeping away from the one end mouth of pipe department of second pipeline at first pipeline, inserting the first lifter of establishing in first fixing device, set up the laser level on first lifter through the detachable mode, set up the second fixing device of keeping away from the one end mouth of pipe department of first pipeline at the second pipeline, insert and establish second lifter in the second fixing device and the light target of receiving that sets up on the second lifter through the detachable mode.
2. The auxiliary device for pipeline butt joint as claimed in claim 1, wherein the first fixing device and the second fixing device are identical in structure and each comprise a sleeve and clamping devices symmetrically arranged at two ends of the sleeve, the clamping devices are vertically sleeved on the end side of the sleeve, when the clamping devices are fastened, the clamping devices at two ends of the sleeve are tightened, and the two clamping devices are clamped on the pipe wall at the pipe orifice of the first pipeline or the second pipeline.
3. The pipe docking aid of claim 2, wherein the clamping means comprises a connecting rod vertically fitted over the sleeve, a connecting pipe vertically fitted over an end side of the connecting rod, and a connecting bolt threadedly coupled to the connecting pipe, and when tightened, the connecting bolt is screwed, and the connecting bolts of the two clamping means are extended from the connecting pipe to clamp a pipe wall at a pipe opening of the first pipe or the second pipe.
4. The pipe docking aid of claim 1, wherein the laser level is threadably connected to the first lifting rod.
5. The pipe docking aid of claim 1, wherein the light receiving target is threadably connected to the second lifting rod.
6. The pipeline docking assistance device of claim 1 wherein the second lifter is provided with a millimeter scale.
7. A pipe docking method of the pipe docking assistance device according to any one of claims 1 to 6, comprising the steps of:
the method comprises the following steps: fixing a first fixing device on the wall of an end pipe orifice of the first pipeline far away from the second pipeline, inserting a first lifting rod into the first fixing device, connecting the laser level meter with the first lifting rod in a detachable mode, and leveling and centering the laser level meter; then a second fixing device is arranged at the pipe orifice of one end of the second pipeline, which is far away from the first pipeline, a second lifting rod is inserted into the second fixing device, and finally the light receiving target is detachably arranged on the second lifting rod and leveled;
step two: respectively placing a first pipeline and a second pipeline at positions to be installed in a construction area, opening a laser level meter, projecting laser by the laser level meter, receiving the laser by a light target, and obtaining the height of the laser deviating from a target center;
step three: calculating according to the plane positions of the first pipeline and the second pipeline, the height of the laser deviating from the target center and the pipe diameter difference value of the first pipeline and the second pipeline, calculating the height of the first lifting rod or the second lifting rod which needs to be adjusted when the gradient ratio is 0 and the first pipeline and the second pipeline are centered, and adjusting the height of the first lifting rod or the second lifting rod according to the calculated adjusting height so that the center of a circle of the light target is received in the middle of the laser projected by the adjusted laser level;
step four: butting the first pipeline and the second pipeline, and keeping the laser projected by the laser level meter projected at the circle center of the receiving light target in the butting process;
step five: after the first pipeline and the second pipeline are butted, the pipeline butting device is detached from the first pipeline and the second pipeline, and the related pipeline behind is installed by adopting the method, and the related steps are consistent with the steps in the front.
8. The pipe docking method of the pipe docking assisting device according to any one of claims 7, wherein the second lifting rod is provided with millimeter-scale scales, and the height of the second lifting rod is adjusted according to the calculated adjustment height in step three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179034.3A CN112344917A (en) | 2020-10-29 | 2020-10-29 | Pipeline butt joint auxiliary device and pipeline butt joint method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179034.3A CN112344917A (en) | 2020-10-29 | 2020-10-29 | Pipeline butt joint auxiliary device and pipeline butt joint method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112344917A true CN112344917A (en) | 2021-02-09 |
Family
ID=74357091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011179034.3A Pending CN112344917A (en) | 2020-10-29 | 2020-10-29 | Pipeline butt joint auxiliary device and pipeline butt joint method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112344917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187955A (en) * | 2021-05-29 | 2021-07-30 | 廖浩宏 | High-precision positioning and mounting device for common-plate flange air pipes |
| CN113445937A (en) * | 2021-07-09 | 2021-09-28 | 中国煤炭地质总局第二水文地质队 | Butt joint construction method for large-diameter drilling inner sleeve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893852U (en) * | 2014-04-08 | 2014-10-22 | 北京航天峰光电子技术有限责任公司 | Laser alignment device |
| CN206373807U (en) * | 2016-12-29 | 2017-08-04 | 河南省大方重型机器有限公司 | It is a kind of to be used for the fixture of fixed processing crane component part coil of strip wrench |
| CN206509941U (en) * | 2017-02-27 | 2017-09-22 | 人本集团有限公司 | A kind of cylinder roller bearing disassembling fixture |
| CN108548487A (en) * | 2018-04-26 | 2018-09-18 | 广东电网有限责任公司 | A kind of accurate laser alignment device of GIS device |
| CN110146037A (en) * | 2019-04-11 | 2019-08-20 | 浙江大学 | Measuring device and method for seamless steel tube for ship seamless interfacing |
| CN111174766A (en) * | 2019-12-27 | 2020-05-19 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | Precise span measurement auxiliary tool and measurement method for heavy track of large-span traveling vehicle |
-
2020
- 2020-10-29 CN CN202011179034.3A patent/CN112344917A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203893852U (en) * | 2014-04-08 | 2014-10-22 | 北京航天峰光电子技术有限责任公司 | Laser alignment device |
| CN206373807U (en) * | 2016-12-29 | 2017-08-04 | 河南省大方重型机器有限公司 | It is a kind of to be used for the fixture of fixed processing crane component part coil of strip wrench |
| CN206509941U (en) * | 2017-02-27 | 2017-09-22 | 人本集团有限公司 | A kind of cylinder roller bearing disassembling fixture |
| CN108548487A (en) * | 2018-04-26 | 2018-09-18 | 广东电网有限责任公司 | A kind of accurate laser alignment device of GIS device |
| CN110146037A (en) * | 2019-04-11 | 2019-08-20 | 浙江大学 | Measuring device and method for seamless steel tube for ship seamless interfacing |
| CN111174766A (en) * | 2019-12-27 | 2020-05-19 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | Precise span measurement auxiliary tool and measurement method for heavy track of large-span traveling vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187955A (en) * | 2021-05-29 | 2021-07-30 | 廖浩宏 | High-precision positioning and mounting device for common-plate flange air pipes |
| CN113187955B (en) * | 2021-05-29 | 2021-12-03 | 广东骏太建筑安装有限公司 | High-precision positioning and mounting device for common-plate flange air pipes |
| CN113445937A (en) * | 2021-07-09 | 2021-09-28 | 中国煤炭地质总局第二水文地质队 | Butt joint construction method for large-diameter drilling inner sleeve |
| CN113445937B (en) * | 2021-07-09 | 2022-07-29 | 中国煤炭地质总局第二水文地质队 | Butt joint construction method for large-diameter drilling inner sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112344917A (en) | Pipeline butt joint auxiliary device and pipeline butt joint method | |
| CN205557884U (en) | Building shock insulation support built -in fitting installation positioner with adjustable it is three -dimensional | |
| CN111215483A (en) | Pipe orifice rounding, shaping and butting device | |
| CN210756161U (en) | Flange and steel pipe fixed-position welding device suitable for multiple specifications | |
| CN105466663A (en) | An apparatus for accurately measuring a local air-flow offset angle in a wind tunnel transonic speed test section | |
| CN209100934U (en) | A kind of fixed portable stand of the level with Telescopic | |
| CN108225263B (en) | Elevation vertical transfer device and method for measuring elevation by using same | |
| CN203371513U (en) | Special installation platform for laser tracker | |
| CN104808690B (en) | Conduit slope measuring instrument | |
| CN213234315U (en) | Inserted bar is measured to concrete thickness and roughness | |
| CN212363225U (en) | Building engineering is straightness detection device that hangs down for measurement | |
| CN204512858U (en) | Large-size air conditioning noise subtest tripod | |
| CN207267139U (en) | Adjustable prefabricated group of split flange is to platform | |
| CN106284649B (en) | Bevelled halving construction method in a kind of ball of solder sphere rod member for grid | |
| CN207568205U (en) | The moulding bed quickly positioned for truss assembly rod piece | |
| CN206971809U (en) | A kind of civil engineering support | |
| CN219016577U (en) | Laser range finder fixing device | |
| CN209855242U (en) | Embedded part installation device convenient and fast to construct and capable of being turned over | |
| CN221223804U (en) | Vertical spot casting device | |
| CN207027285U (en) | A kind of leaf tip arrester positioning tool | |
| CN215858426U (en) | Building curtain wall connecting device | |
| CN216556067U (en) | Water conservancy exploration mapping equipment | |
| CN216387540U (en) | Small prism support device | |
| CN209541749U (en) | A kind of monitoring installation station | |
| CN203881346U (en) | Adjusting device for indoor triaxial calibration field |
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: 20210209 |