CN107905723A - A kind of anti-well drilling machine with rotary knife base - Google Patents
A kind of anti-well drilling machine with rotary knife base Download PDFInfo
- Publication number
- CN107905723A CN107905723A CN201711122151.4A CN201711122151A CN107905723A CN 107905723 A CN107905723 A CN 107905723A CN 201711122151 A CN201711122151 A CN 201711122151A CN 107905723 A CN107905723 A CN 107905723A
- Authority
- CN
- China
- Prior art keywords
- spill spin
- rotary
- spin block
- cutterhead
- tool apron
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Abstract
The invention discloses a kind of anti-well drilling machine with rotary knife base, including base support, telescoping drive mechanism, rotary drive mechanism, drilling rod, drill bit；The telescoping drive mechanism is installed on base support；The rotary drive mechanism is installed on telescoping drive mechanism upper end；The drilling rod bottom is installed on rotary drive mechanism；The drilling rod upper end installation drill bit；The drill bit includes cutterhead, tool apron, hobboing cutter, feeler lever；The cutterhead is installed on drilling rod upper end；The tool apron is installed on cutterhead upper end；The hobboing cutter is installed on tool apron；The feeler lever is installed on the centre of cutterhead；The bottom of the tool apron is installed on cutterhead by rotary moveable mechanism.Tool apron position of the invention is adjustable, realizes from correcting, and is bonded the progress drilling well of broken rock face, boring the ground.
Description
Technical field
The present invention relates to a kind of anti-well drilling machine with rotary knife base.
Background technology
At present, anti-well drilling machine is mainly used in hydroelectric project vertical shaft, inclined shaft, surge shaft, ventilation shaft and gully, railway
Construction ventilation well and mine slip slag well etc. industry.Drill bit in anti-well drilling machine is most important component in whole mechanism, one
As drill bit all include cutterhead, tool apron, hobboing cutter, tool apron be installed on cutterhead on, hobboing cutter be installed on tool apron on, the distribution of hobboing cutter and structure
Have a great impact for the efficiency and stability of broken rock, existing tool apron is all stationarily connected on cutterhead, the position of tool apron
It is all to carry out being distributed in advance to put, and cannot flexibly be used in actual job, it is impossible to is carried out according to broken rock face from correction tool apron
Position.
The content of the invention
In view of the above shortcomings of the prior art part, the present invention solve the problems, such as be：It is adjustable, real to provide a kind of tool apron position
Now from the anti-well drilling machine with rotary knife base of correction.
To solve the above problems, the technical solution that the present invention takes is as follows：
A kind of anti-well drilling machine with rotary knife base, including base support, telescoping drive mechanism, rotary drive mechanism, drilling rod, brill
Head；The telescoping drive mechanism is installed on base support；The rotary drive mechanism is installed on telescoping drive mechanism
End；The drilling rod bottom is installed on rotary drive mechanism；The drilling rod upper end installation drill bit；The drill bit includes knife
Disk, tool apron, hobboing cutter, feeler lever；The cutterhead is installed on drilling rod upper end；The tool apron is installed on cutterhead upper end；The rolling
Knife is installed on tool apron；The feeler lever is installed on the centre of cutterhead；Pacified by rotary moveable mechanism the bottom of the tool apron
On cutterhead.
Further, the rotary moveable mechanism includes positioning column, spill spin block, spacing workpiece, travelling nut；Described determines
The lower end of position column is fixed on cutterhead；The positioning column upper end is equipped with first through hole；The spill spin block upper end is fixed on knife
Seat bottom；The spill spin block has extended upwardly from the bottom portion inserting groove；The sidepiece of the spill spin block is equipped with through its section
Second through hole；The spacing workpiece is in I-shape construction；The spacing workpiece includes spill spin block limiting plate, screw rod, movement
Nut limiting plate；The spill spin block limiting plate and travelling nut limiting plate is separately mounted to the both ends of screw rod；The positioning
Column upper end is plugged in the inserting groove of spill spin block bottom；The first through hole and the second lead to the hole site correspond to；The spacing work
Screw rod in part, which is worn, to be connected in first through hole and the second through hole；The spill spin block limiting plate is connected to side outside spill spin block；
The travelling nut limiting plate is located at opposite side outside spill spin block；The travelling nut is threadably mounted on screw rod；It is described
Travelling nut be located on the outside of travelling nut limiting plate and spill spin block between；The travelling nut rotational fastener spill spin block.
Further, the rotary moveable mechanism further includes compression spring；The compression spring is socketed on screw rod；Institute
The compression spring stated is between travelling nut and spill spin block.
Further, it is connected with rotary drilling block at the top of the feeler lever.
Further, the rotary drilling block lower inner is equipped with T-shaped card slot；T-shaped latch is equipped with the top of the feeler lever；Institute
The rotary drilling block stated passes through the T-shaped latch rotary clamping at the top of T-shaped card slot and feeler lever.
Further, the arc-shaped structure in upper end of the rotary drilling block.
Beneficial effects of the present invention
The bottom of the tool apron of the present invention is installed on cutterhead by rotary moveable mechanism, so realizes the spinning work(of tool apron
Can, rotary moveable mechanism can promote tool apron and hobboing cutter to carry out rational position adjusting, specific knife according to different broken rock faces
Seat and spill spin block upper end are fixed, stationary positioned column on cutterhead, and positioning column interts to be rotatablely connected into spill spin block and with column spinner,
Travelling nut is installed on the screw rod of spacing workpiece, travelling nut can lock spill spin block, there is two kinds of operating modes, and one
It is to be pre-adjusted the angle of spill spin block so that the position of tool apron is pre-adjusted, then travelling nut is locked in outside spill spin block
Side so that spill spin block is locked；Second, adjusting the position of travelling nut, ensure that spill spin block is not locked so that spill spin block can be with
Rotation is carried out under the squeezing action of external force and realizes correction certainly, the present invention realizes the rotation of tool apron from correcting, is bonded broken rock face,
Using more flexible.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is tool apron of the present invention, hobboing cutter, the attachment structure schematic diagram of rotary moveable mechanism.
Fig. 3 is the connection schematic cross-sectional view of rotary moveable mechanism of the present invention.
Fig. 4 is the fractionation structural representation of rotary moveable mechanism of the present invention.
Fig. 5 is the structure diagram that tool apron of the present invention rotates to the left.
Fig. 6 is the structure diagram that tool apron of the present invention rotates to the right.
Fig. 7 is the fractionation structural representation of feeler lever of the present invention.
Fig. 8 is the attachment structure schematic diagram of feeler lever of the present invention.
Embodiment
Present invention is described in further detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of anti-well drilling machine with rotary knife base, including base support 1, telescoping drive mechanism 2,
Rotary drive mechanism 3, drilling rod 5, drill bit 4.The telescoping drive mechanism 2 is installed on base support 1.The rotation driving
Mechanism 3 is installed on 2 upper end of telescoping drive mechanism.Telescoping drive mechanism 2 controls rotary drive mechanism 3 to move up and down.The brill
5 bottom of bar is installed on rotary drive mechanism 3.Rotary drive mechanism 3 controls the rotation of drilling rod 5.5 upper end of the drilling rod installation
Drill bit 4.The drill bit 4 includes cutterhead 41, tool apron 42, hobboing cutter 43, feeler lever 44.The cutterhead 41 is installed on 5 upper end of drilling rod.
The tool apron 42 is installed on 41 upper end of cutterhead.The hobboing cutter 43 is installed on tool apron 42.The feeler lever 44 is installed on knife
The centre of disk 41.The bottom of the tool apron 42 is installed on cutterhead 41 by rotary moveable mechanism 6.
As shown in Figures 3 and 4, further preferably, the rotary moveable mechanism 6 includes positioning column 62, spill spin block 61, spacing
Workpiece 63, travelling nut 64.The lower end of the positioning column 62 is fixed on cutterhead 41.62 upper end of positioning column is equipped with the
One through hole 621.61 upper end of spill spin block is fixed on 42 bottom of tool apron.The spill spin block 61 has extended upwardly from the bottom portion slotting
Access slot 611.The sidepiece of the spill spin block 61 is equipped with the second through hole 612 through its section.The spacing workpiece 63 is in work
Character form structure.The spacing workpiece 63 includes spill spin block limiting plate 632, screw rod 631, travelling nut limiting plate 633.Described
Spill spin block limiting plate 632 and travelling nut limiting plate 633 are separately mounted to the both ends of screw rod 631.62 upper end of positioning column
It is plugged in the inserting groove 611 of 61 bottom of spill spin block.621 and second through hole of first through hole, 612 position correspondence.The limit
Screw rod 631 in the workpiece 63 of position, which is worn, to be connected on 621 and second through hole 612 of first through hole.The spill spin block limiting plate 632 abuts
In 61 outside side of spill spin block.The travelling nut limiting plate 633 is located at 61 outside opposite side of spill spin block.The mobile spiral shell
Mother 64 is threadably mounted on screw rod 631.The travelling nut 64 is located at 61 outside of travelling nut limiting plate 633 and spill spin block
Between.The 64 rotational fastener spill spin block 61 of travelling nut.Further preferably, the rotary moveable mechanism 6 further includes compression
Spring 65.The compression spring 65 is socketed on screw rod 631.The compression spring 65 is located at travelling nut 64 and spill spin block
Between 61.Compression spring 65 is acted between travelling nut 64 and spill spin block 61 by its elastic force so that travelling nut 64 is to rotation
Switch block 61 lock it is even closer, connection it is more steady.
As shown in FIG. 7 and 8, further preferably, to increase the convenience of 44 operation of feeler lever, the top of feeler lever 44 is clamped
There is rotary drilling block 45.Further preferably, 45 lower inner of rotary drilling block is equipped with T-shaped card slot 451.The feeler lever 44 pushes up
Portion is equipped with T-shaped latch 441.The rotary drilling block 45 passes through T-shaped card slot 451 and 441 revotating card of T-shaped latch at the top of feeler lever 44
Connect.Further preferably, the arc-shaped structure in upper end of the rotary drilling block 45.
As shown in Fig. 2,5,6, the bottom of tool apron 42 of the invention is installed on cutterhead 41 by rotary moveable mechanism 6, such as
This realizes the automatic rotation function of tool apron 42, and rotary moveable mechanism 6 can promote tool apron 42 and hobboing cutter 43 according to different broken rocks
Face carries out rational position adjusting, and specific 61 upper end of tool apron 42 and spill spin block is fixed, stationary positioned column 62 on cutterhead 41, positioning
Column 62 interts to be rotatablely connected into spill spin block 61 and with column spinner 61, and mobile spiral shell is installed on the screw rod 631 of spacing workpiece 63
Mother 64, travelling nut 64 can lock spill spin block 61.The present invention has two kinds of operating modes：First, it is pre-adjusted spill spin block
61 angle make it that the position of tool apron 42 is pre-adjusted, and travelling nut 64 then is locked in the outside of spill spin block 61 so that
Spill spin block 61 is locked；Second, adjusting the position of travelling nut 64, ensure that spill spin block 61 is not locked so that spill spin block 61 can be with
Rotation is carried out under the squeezing action of external force and realizes that the present invention realizes the rotation of tool apron 42 from correcting, and is bonded broken rock from correcting
Face, use are more flexible.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of anti-well drilling machine with rotary knife base, it is characterised in that driven including base support, telescoping drive mechanism, rotation
Motivation structure, drilling rod, drill bit；The telescoping drive mechanism is installed on base support；The rotary drive mechanism is installed on
Telescoping drive mechanism upper end；The drilling rod bottom is installed on rotary drive mechanism；The drilling rod upper end installation drill bit；Institute
The drill bit stated includes cutterhead, tool apron, hobboing cutter, feeler lever；The cutterhead is installed on drilling rod upper end；The tool apron is installed on cutterhead
Upper end；The hobboing cutter is installed on tool apron；The feeler lever is installed on the centre of cutterhead；The bottom of the tool apron passes through rotation
Turn movable device on cutterhead.
2. the anti-well drilling machine according to claim 1 with rotary knife base, it is characterised in that the rotary moveable mechanism
Including positioning column, spill spin block, spacing workpiece, travelling nut；The lower end of the positioning column is fixed on cutterhead；The positioning
Column upper end is equipped with first through hole；The spill spin block upper end is fixed on tool apron bottom；The spill spin block extends upwardly from the bottom portion
There is inserting groove；The sidepiece of the spill spin block is equipped with the second through hole through its section；The spacing workpiece is in I-shaped knot
Structure；The spacing workpiece includes spill spin block limiting plate, screw rod, travelling nut limiting plate；The spill spin block limiting plate and shifting
Dynamic nut limiting plate is separately mounted to the both ends of screw rod；The positioning column upper end is plugged in the inserting groove of spill spin block bottom；
The first through hole and the second lead to the hole site correspond to；Screw rod in the spacing workpiece, which is worn, is connected on first through hole and the second through hole
On；The spill spin block limiting plate is connected to side outside spill spin block；The travelling nut limiting plate is located at outside spill spin block
Opposite side；The travelling nut is threadably mounted on screw rod；The travelling nut is located at travelling nut limiting plate and rotation
Between on the outside of block；The travelling nut rotational fastener spill spin block.
3. the anti-well drilling machine according to claim 2 with rotary knife base, it is characterised in that the rotary moveable mechanism
Further include compression spring；The compression spring is socketed on screw rod；The compression spring is located at travelling nut and spill spin block
Between.
4. the anti-well drilling machine according to claim 1 with rotary knife base, it is characterised in that clamping at the top of the feeler lever
There is rotary drilling block.
5. the anti-well drilling machine according to claim 4 with rotary knife base, it is characterised in that below the rotary drilling block
It is internally provided with T-shaped card slot；T-shaped latch is equipped with the top of the feeler lever；The rotary drilling block passes through T-shaped card slot and feeler lever top
T-shaped latch rotary clamping.
6. the anti-well drilling machine according to claim 4 with rotary knife base, it is characterised in that the rotary drilling block it is upper
Hold arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122151.4A CN107905723A (en) | 2017-11-14 | 2017-11-14 | A kind of anti-well drilling machine with rotary knife base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711122151.4A CN107905723A (en) | 2017-11-14 | 2017-11-14 | A kind of anti-well drilling machine with rotary knife base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905723A true CN107905723A (en) | 2018-04-13 |
Family
ID=61845413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711122151.4A Pending CN107905723A (en) | 2017-11-14 | 2017-11-14 | A kind of anti-well drilling machine with rotary knife base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905723A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025993A (en) * | 2018-10-24 | 2018-12-18 | 湖南创远高新机械有限责任公司 | Drilling machine dregs flow-guiding structure |
| CN109538126A (en) * | 2018-11-06 | 2019-03-29 | 江苏和信石油机械有限公司 | A kind of anti-well brill machine bit |
| CN109538129A (en) * | 2018-11-06 | 2019-03-29 | 江苏和信石油机械有限公司 | A kind of anti-well brill machine bit of convenient assembling |
| CN109681208A (en) * | 2018-12-06 | 2019-04-26 | 中信重工机械股份有限公司 | A kind of swing type equal diameter multi-cutter-disk envelope forming tunneling boring drilling tool |
| CN110318664A (en) * | 2019-04-29 | 2019-10-11 | 江苏和信石油机械有限公司 | A kind of flexible anti-well drilling machine of automatic drive type of grafting |
| CN110318663A (en) * | 2019-04-29 | 2019-10-11 | 江苏和信石油机械有限公司 | A kind of convenient anti-well drilling machine of automatic drive type of adjusting |
| CN117328858A (en) * | 2023-10-30 | 2024-01-02 | 江苏和信石油机械有限公司 | Mine exploration well reversing drilling machine capable of being monitored in real time |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3993147A (en) * | 1976-01-19 | 1976-11-23 | Dresser Industries, Inc. | Taper lock removable stem for raise bit |
| US4114698A (en) * | 1975-02-20 | 1978-09-19 | Smith International, Inc. | Method and apparatus for tunneling upwardly |
| CN202483443U (en) * | 2012-03-16 | 2012-10-10 | 长沙矿山研究院有限责任公司 | Central cutter hydraulic signal-emitting device used for walking counter-boring cutter head |
| CN203403825U (en) * | 2013-06-14 | 2014-01-22 | 朱宝顺 | Assembly type coreless drill bit |
| CN204266927U (en) * | 2014-11-28 | 2015-04-15 | 湖南有色重型机器有限责任公司 | Raise boring machine reaming cutterhead |
| CN106624093A (en) * | 2016-11-18 | 2017-05-10 | 江苏曙光集团股份有限公司 | Tool apron for synchronously milling three spiral grooves in outer wall of drill pipe |
| CN206477800U (en) * | 2017-02-16 | 2017-09-08 | 南昌力通岩土工程设备有限公司 | A kind of novel trans well bores hobboing cutter |
-
2017
- 2017-11-14 CN CN201711122151.4A patent/CN107905723A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114698A (en) * | 1975-02-20 | 1978-09-19 | Smith International, Inc. | Method and apparatus for tunneling upwardly |
| US3993147A (en) * | 1976-01-19 | 1976-11-23 | Dresser Industries, Inc. | Taper lock removable stem for raise bit |
| CN202483443U (en) * | 2012-03-16 | 2012-10-10 | 长沙矿山研究院有限责任公司 | Central cutter hydraulic signal-emitting device used for walking counter-boring cutter head |
| CN203403825U (en) * | 2013-06-14 | 2014-01-22 | 朱宝顺 | Assembly type coreless drill bit |
| CN204266927U (en) * | 2014-11-28 | 2015-04-15 | 湖南有色重型机器有限责任公司 | Raise boring machine reaming cutterhead |
| CN106624093A (en) * | 2016-11-18 | 2017-05-10 | 江苏曙光集团股份有限公司 | Tool apron for synchronously milling three spiral grooves in outer wall of drill pipe |
| CN206477800U (en) * | 2017-02-16 | 2017-09-08 | 南昌力通岩土工程设备有限公司 | A kind of novel trans well bores hobboing cutter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025993A (en) * | 2018-10-24 | 2018-12-18 | 湖南创远高新机械有限责任公司 | Drilling machine dregs flow-guiding structure |
| CN109025993B (en) * | 2018-10-24 | 2023-12-12 | 湖南创远高新机械有限责任公司 | Slag soil flow guiding structure of drilling machine |
| CN109538126A (en) * | 2018-11-06 | 2019-03-29 | 江苏和信石油机械有限公司 | A kind of anti-well brill machine bit |
| CN109538129A (en) * | 2018-11-06 | 2019-03-29 | 江苏和信石油机械有限公司 | A kind of anti-well brill machine bit of convenient assembling |
| CN109681208A (en) * | 2018-12-06 | 2019-04-26 | 中信重工机械股份有限公司 | A kind of swing type equal diameter multi-cutter-disk envelope forming tunneling boring drilling tool |
| CN109681208B (en) * | 2018-12-06 | 2024-02-09 | 中信重工机械股份有限公司 | Swing type full-section drilling tool with equal-diameter and multiple cutterheads for enveloping and forming |
| CN110318664A (en) * | 2019-04-29 | 2019-10-11 | 江苏和信石油机械有限公司 | A kind of flexible anti-well drilling machine of automatic drive type of grafting |
| CN110318663A (en) * | 2019-04-29 | 2019-10-11 | 江苏和信石油机械有限公司 | A kind of convenient anti-well drilling machine of automatic drive type of adjusting |
| CN117328858A (en) * | 2023-10-30 | 2024-01-02 | 江苏和信石油机械有限公司 | Mine exploration well reversing drilling machine capable of being monitored in real time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107905723A (en) | A kind of anti-well drilling machine with rotary knife base | |
| CN107905735A (en) | A kind of anti-well drilling machine of floating gear type | |
| CN104564112B (en) | The airborne roof-bolter of underground mine use single armed | |
| CN105804764A (en) | Drilling and bursting type heading machine | |
| CN102182397B (en) | Multi-angle coal petrography drilling machine | |
| CN109252811B (en) | Floating interval adjusting type raise boring machine | |
| CN203701959U (en) | Hydraulic drilling rig for coal mine bed plate tunnel | |
| CN104499951B (en) | A kind of holder device of rig | |
| CN201635650U (en) | Multi-angle coal rock drilling machine | |
| CN109184577A (en) | A kind of anti-well drilling machine of plug-in | |
| CN109236183A (en) | A kind of bridge construction rotary drilling rig | |
| CN100575656C (en) | Full-hydraulic multifunctional driller for gas extraction, drainage and discharge | |
| CN209556932U (en) | A kind of rotary digging enters rock hammering drill bit | |
| CN107905724A (en) | A kind of hobboing cutter splits the anti-well drilling machine of type that gathers | |
| CN206513311U (en) | Jumbolter | |
| CN204371382U (en) | The airborne roof-bolter of underground mine use single armed | |
| CN208644135U (en) | A kind of ballastless track of high-speed railway drilling device | |
| CN204357361U (en) | A kind of holder device of coal mine drilling machine | |
| CN109538114B (en) | Attaching type raise boring machine | |
| CN109538126A (en) | A kind of anti-well brill machine bit | |
| CN205918367U (en) | Hydrodrill host computer assembly structure for coal mine | |
| CN102383803B (en) | Cutter of comprehensive mechanized rock tunnel boring machine | |
| KR101205338B1 (en) | Stone core production and cutting hole drilling machine | |
| CN106401478A (en) | Main machine assembly structure of coal mine drilling machine | |
| CN110513049A (en) | A kind of novel hard rock Hob for cutting rock bearing arrangement |
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: 20180413 |