CN108843879A - From filled type bend pipe, pipe-line transportation system and concrete pump - Google Patents
From filled type bend pipe, pipe-line transportation system and concrete pump Download PDFInfo
- Publication number
- CN108843879A CN108843879A CN201810975950.4A CN201810975950A CN108843879A CN 108843879 A CN108843879 A CN 108843879A CN 201810975950 A CN201810975950 A CN 201810975950A CN 108843879 A CN108843879 A CN 108843879A
- Authority
- CN
- China
- Prior art keywords
- pipe
- groove
- arc
- bend pipe
- filled type
- 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
- 239000000463 material Substances 0.000 claims abstract description 46
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 11
- 239000013589 supplement Substances 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/001—Bends; Siphons made of metal
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
Abstract
The invention discloses one kind from filled type bend pipe, including elbow body (1), at least one section of the pipeline formed inside the elbow body (1) is arc pipe (2), and the elbow body (1) is provided with groove (3) that is fillable and being detained pipeline material in the outer arc side of this section of arc pipe (2).Since elbow body of the invention is provided with groove that is fillable and being detained pipeline material in the outer arc side of arc pipe, when bend pipe is when conveying material, pipeline material is filled in groove certainly, abrasion and impact of the material to arc pipe outer arc side when material in groove can fight pipeline material, and the material in groove can be constantly from supplement, to improve the wear-resisting property of the outer arc side of arc pipe, and then each section of bend pipe is made to reach good balance in wearability and impact resistance.The invention also discloses a kind of including above-mentioned pipe-line transportation system and concrete pump from filled type bend pipe.
Description
Technical field
The present invention relates to a kind of bend pipes for material conveying, and in particular to it is a kind of for concrete conveyance from filled type
Bend pipe, the invention further relates to a kind of including above-mentioned pipe-line transportation system and concrete pump from filled type bend pipe.
Background technique
In many pipe-line transportation systems, it is usually provided with bend pipe in the corner of pipeline, and in the bend pipe in pipeline
The outer arc side in portion usually most quick-wearing.For example, the bend pipe of the pipe-line transportation system on pumping vehicle arm rack is most commonly that single layer cast steel
Bend pipe, composite-curve, in the delivering concrete course of work, the bend pipe of the pipe-line transportation system on pumping vehicle arm rack needs to bear mixed
The effect of the multi-force such as soil erosive wear, pressure oscillation impact is coagulated, abrasion exception is serious in the middle part of the outer arc inside bend pipe, wherein curved
Pipe damages in failure mode, and middle part wear-out failure accounting is up to 95%.The premature wear of bend pipe accelerates the straight tube coupled therewith different
Often abrasion, causes the service life of a whole set of pipeline system that cannot ensure, becomes universal existing for concrete conveying pipe system
Problem.
In order to extend the service life of bend pipe, wear-resisting property in the middle part of bend pipe need to be improved, each position degree of wear phase of bend pipe is made
Deng to reach each position equivalent life of bend pipe.And in order to solve above-mentioned problem, there are many trials to the design of bend pipe, manufacture at present.
But still without solving the problems, such as that abrasion is very fast in the middle part of the outer arc inside bend pipe.
Summary of the invention
In view of this, the present invention proposes the wear-resisting property and shock resistance of a kind of outer arc side that arc pipe can be improved
From filled type bend pipe and including above-mentioned pipe-line transportation system and concrete pump from filled type bend pipe.
On the one hand, the invention proposes one kind forms from inside filled type bend pipe, including elbow body, the elbow body
At least one section of pipeline be arc pipe, the elbow body is provided with fillable and stagnant in the outer arc side of this section of arc pipe
Stay the groove of pipeline material.
As a further improvement, the arc pipe is arc shape pipeline, and the groove is located at the outer of arc shape pipeline
The middle part of arc side.
As a further improvement, the groove includes groove bottom wall and two groove sidewalls, and described two groove sidewalls are set respectively
It is disposed adjacent at the both ends of the arc pipe.
As a further improvement, the groove sidewall is curved wall, the prominent side of the outer arc of the curved wall close to
The end of the arc pipe.
As a further improvement, the groove bottom wall includes left slot bottom wall surface and right slot bottom wall surface, the left slot bottom wall surface
Angle is formed with right slot bottom wall surface.
As a further improvement, the angle of the angle is 80 degree to 100 degree.
As a further improvement, the pipe thickness of the outer arc side of the arc pipe is gradually increased from end to middle part.
As a further improvement, the tip inside of the elbow body is provided with wear-resistant sleeve.
A kind of pipeline formed from inside filled type bend pipe, including elbow body, the elbow body proposed by the present invention
At least one section be arc pipe, the elbow body is provided with fillable and is detained pipeline in the outer arc side of this section of arc pipe
Convey the groove of material.Since elbow body of the invention is provided with fillable and to be detained pipeline defeated in the outer arc side of arc pipe
The groove for sending material, when bend pipe is when conveying material, from being filled in groove, the material in groove can be fought pipeline material
Abrasion and impact of the material to arc pipe outer arc side when pipeline material, and since groove can be filled and to be detained pipeline defeated
Material is sent, the material in groove to improve the wear-resisting property of the outer arc side of arc pipe, and then can make curved constantly from supplementing
Each section of pipe reaches good balance in wearability and impact resistance, realizes the equivalent life design of bend pipe each section.
On the other hand, the present invention also provides a kind of pipe-line transportation systems, including as described above from filled type bend pipe.
Because setting above structure is from filled type bend pipe, pipe-line transportation system conveys pipe-line transportation system provided by the invention
When material, the groove of the outer arc side of arc pipe can be filled and be detained pipeline material, and the material in groove can fight pipeline
Abrasion and impact of the material to arc pipe outer arc side when conveying material, and the material in groove can be supplemented constantly certainly, from
And the wear-resisting property of the outer arc side of arc pipe is improved, it realizes the equivalent life of bend pipe each section, improves entire pipe-line transportation system
Service life, reduce use cost.
In another aspect, the present invention also provides a kind of concrete pump, including pipe-line transportation system as described above.
Concrete pump provided by the invention is due to above-mentioned pipe-line transportation system, and above-mentioned pipe-line transportation system has setting
Above structure from filled type bend pipe, for concrete pump in delivering concrete, the groove of the outer arc side of arc pipe is fillable simultaneously
It is detained concrete, the concrete in groove can fight abrasion and impact of the pipeline institute's delivering concrete to arc pipe outer arc side,
And the concrete in groove to improve the wear-resisting property of the outer arc side of arc pipe, and then can improve constantly from supplementing
The service life of entire pipe-line transportation system, reduces use cost.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural diagram of the present invention.
Each component is corresponding with appended drawing reference as follows in Fig. 1：
Elbow body -1, arc pipe -2, groove -3, wear-resistant sleeve -4, groove bottom wall -31, groove sidewall -32, left slot
Wall surface -311, right slot bottom wall surface -312.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, proposition of the embodiment of the present invention is a kind of from filled type bend pipe, including elbow body 1, elbow body 1
Whole is in boot last, and it is matrix that wear resistant cast iron, which can be used, in elbow body 1, and at least the one of the pipeline formed inside the elbow body 1
Section is arc pipe 2, and the elbow body 1 is provided with fillable and is detained pipeline in the outer arc side of this section of arc pipe 2
The groove 3 of material.Since the elbow body 1 of the embodiment of the present invention is provided with fillable in the outer arc side of arc pipe 2 and is detained
The groove 3 of pipeline material, when bend pipe is when conveying material, pipeline material is filled in groove 3 certainly, in groove 3
Abrasion and impact of the material to 2 outer arc side of arc pipe when material can fight pipeline material, and since groove 3 is fillable
And it is detained pipeline material, the material in groove 3 may be implemented constantly from supplementing, to improve the outer arc side of arc pipe 2
Wear-resisting property, and then each section of bend pipe is made to reach good balance in wearability and impact resistance.
Embodiment as a further preference, the arc pipe 2 are arc shape pipeline, the length of circular arc is four/
One circle.The groove 3 is located at the middle part of the outer arc side of arc shape pipeline, due to being to be ground in the middle part of the outer arc side of arc shape pipeline
Most strong part is damaged and impacted, sets the middle part positioned at the outer arc side of arc shape pipeline for the groove 3, it can be compared with limits
Ground, which is realized from filling, offsets abrasion and impact of the pipeline material to arc pipe outer arc side.
Embodiment as a further preference, the groove 3 includes groove bottom wall 31 and two groove sidewalls 32, described two
Groove sidewall 32 is respectively arranged at the both ends of the arc pipe 2.Since two groove sidewalls 32 are disposed in proximity to the arc
At the both ends of shape pipeline 2, groove sidewall 32 can play barrier effect to the material entered in groove 3, what reduction was lost out of groove 3
Inventory is realized from filling, and then improve arc so as to preferably realize by pipeline material lagging in groove 3
The wear-resisting property of the outer arc side of pipeline 2.
Embodiment as a further preference, the groove sidewall 32 are curved wall, and the outer arc of the curved wall is prominent
Side is close to the end of the arc pipe 2 out.Curved wall is set by the groove sidewall 32, the outer arc of curved wall is prominent
Side can make groove 3 cover the outer arc side of arc pipe 2 as far as possible, to improve in this way close to the end of the arc pipe 2
The wear-resisting property of the outer arc side of arc pipe 2.
Embodiment as a further preference, the groove bottom wall 31 include left slot bottom wall surface 311 and right slot bottom wall surface
312, the left slot bottom wall surface 311 and right slot bottom wall surface 312 form angle, and the angle of the angle is 80 degree to 100 degree, preferentially
It is 90 degree.Since the groove bottom wall 31 of groove 3 is formed by two planes (left slot bottom wall surface 311, right slot bottom wall surface 312), in groove 3
Portion can preferably be detained and save material, to realize from filling, and then improve the wearability of the outer arc side of arc pipe 2
Energy.
Embodiment as a further preference, the pipe thickness of the outer arc side of the arc pipe 2 is from end to middle part
It gradually increases.In practical application, most serious is worn at the middle part of the outer arc side of arc pipe 2, and the end of arc pipe 2 is ground
Damage is smaller, by the way that the pipe thickness of the outer arc side of arc pipe 2 to be set as gradually increasing from end to middle part, more utilizes realization
The equivalent life of bend pipe each section designs.
The tip inside of embodiment as a further preference, the elbow body 1 is provided with wear-resistant sleeve 4.Due to curved
The end of pipe is prone to wear out, and using the structure of built-in wear-resisting set 4, wear-resistant sleeve 4 can choose the better material of wear-resisting property, also more sharp
With the equivalent life design for realizing bend pipe each section.
The embodiment of the present invention also provides a kind of pipe-line transportation system, including as described above from filled type bend pipe.This implementation
For example pipe-line transportation system when conveying material, the groove of the outer arc side of arc pipe can be filled and be detained pipeline material, recessed
Abrasion and impact of the material to arc pipe outer arc side when material in slot can fight pipeline material, and the object in groove
Material, to improve the wear-resisting property of the outer arc side of arc pipe, can realize the equivalent life of bend pipe each section constantly from supplementing, from
And the service life of entire pipe-line transportation system is improved, reduce use cost.
The embodiment of the present invention also provides a kind of concrete pump, including pipe-line transportation system as described above.The present invention is implemented
Concrete pump provided by example is due to the pipe-line transportation system in above-described embodiment, and above-mentioned pipe-line transportation system has setting
Above-described embodiment from filled type bend pipe, for concrete pump in delivering concrete, the groove of the outer arc side of arc pipe is fillable
And it is detained concrete, the concrete in groove can fight abrasion and punching of the pipeline institute's delivering concrete to arc pipe outer arc side
It hits, and the concrete in groove can be constantly from supplementing, to improve the wear-resisting property of the outer arc side of arc pipe, Jin Erti
The service life of high entire pipe-line transportation system, reduces use cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of from filled type bend pipe, which is characterized in that including elbow body (1), the pipe of formation inside the elbow body (1)
At least one section of road is arc pipe (2), and the elbow body (1) is provided with and can fill out in the outer arc side of this section of arc pipe (2)
Fill and be detained the groove (3) of pipeline material.
2. according to claim 1 from filled type bend pipe, which is characterized in that the arc pipe (2) is arc shape pipeline,
The groove (3) is located at the middle part of the outer arc side of arc shape pipeline.
3. according to claim 1 from filled type bend pipe, which is characterized in that the groove (3) include groove bottom wall (31) and
Two groove sidewalls (32), described two groove sidewalls (32) are respectively arranged at the both ends of the arc pipe (2).
4. according to claim 3 from filled type bend pipe, which is characterized in that the groove sidewall (32) is curved wall, institute
The prominent side of outer arc of curved wall is stated close to the end of the arc pipe (2).
5. according to claim 3 from filled type bend pipe, which is characterized in that the groove bottom wall (31) includes left slot bottom wall surface
(311) and right slot bottom wall surface (312), the left slot bottom wall surface (311) and right slot bottom wall surface (312) form angle.
6. according to claim 5 from filled type bend pipe, which is characterized in that the angle of the angle is 80 degree to 100 degree.
7. according to any one of claim 1 to 6 from filled type bend pipe, which is characterized in that the arc pipe (2)
The pipe thickness of outer arc side is gradually increased from end to middle part.
8. according to any one of claim 1 to 6 from filled type bend pipe, which is characterized in that the elbow body (1)
Tip inside is provided with wear-resistant sleeve (4).
9. a kind of pipe-line transportation system, which is characterized in that including such as described in any item of the claim 1 to 8 curved from filled type
Pipe.
10. a kind of concrete pump, which is characterized in that including pipe-line transportation system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975950.4A CN108843879A (en) | 2018-08-24 | 2018-08-24 | From filled type bend pipe, pipe-line transportation system and concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975950.4A CN108843879A (en) | 2018-08-24 | 2018-08-24 | From filled type bend pipe, pipe-line transportation system and concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843879A true CN108843879A (en) | 2018-11-20 |
Family
ID=64189609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810975950.4A Pending CN108843879A (en) | 2018-08-24 | 2018-08-24 | From filled type bend pipe, pipe-line transportation system and concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843879A (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB770413A (en) * | 1952-12-02 | 1957-03-20 | Oskar Biegel G M B H | Improvements in or relating to pipe elbows for pneumatic and hydraulic conveyor pipelines |
| US4387914A (en) * | 1981-06-08 | 1983-06-14 | Hammertek Corporation | Short radius, low wear elbow |
| EP0111589A1 (en) * | 1982-12-23 | 1984-06-27 | Karl-Heinz Stanelle | Elbow element |
| US4865353A (en) * | 1988-02-29 | 1989-09-12 | Osborne Lee R | Abrasion resistant ceramic elbow |
| US5060984A (en) * | 1991-01-22 | 1991-10-29 | Hammertek Corporation | Short radius, low wear elbow |
| JP3005474U (en) * | 1994-06-21 | 1994-12-20 | 錦福 劉 | Regenerative wear-resistant bend for pneumatic transportation |
| JPH07248089A (en) * | 1994-03-09 | 1995-09-26 | Tamotsu Enda | Reinforcing structure of corner part of pressure feed pipe |
| CN2426559Y (en) * | 2000-05-20 | 2001-04-11 | 张玮 | Wear-resistant bend for pipeline |
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| DE102005051766A1 (en) * | 2005-10-27 | 2007-05-03 | Esser-Werke Gmbh & Co. Kg | Pipe bend and method for producing a pipe bend |
| US7300074B1 (en) * | 2003-12-22 | 2007-11-27 | Pelletron Corporation | Elbow fitting with step feature for pneumatic transport system |
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| CN202419005U (en) * | 2011-10-28 | 2012-09-05 | 三一重工股份有限公司 | Embedded compound elbow and concrete conveying equipment |
| CN202834534U (en) * | 2012-09-11 | 2013-03-27 | 三一重工股份有限公司 | Concrete conveying elbow pipe and concrete pumping device |
| CN203273155U (en) * | 2013-05-19 | 2013-11-06 | 鞍钢集团矿业公司 | Wear-resisting elbow for pulp pipeline |
| CN203549241U (en) * | 2013-11-19 | 2014-04-16 | 中联重科股份有限公司 | Conveying elbow and concrete conveying device |
| CN204573429U (en) * | 2015-03-06 | 2015-08-19 | 长沙矿山研究院有限责任公司 | A kind of coarse aggregate filling abrasion-proof bent tube |
| CN105202299A (en) * | 2015-08-08 | 2015-12-30 | 周朝辉 | Auto-fill two-layer in-half wear resistant elbow of concrete pump truck and manufacturing method of wear resistant elbow |
| CN106523831A (en) * | 2017-01-09 | 2017-03-22 | 中冶北方（大连）工程技术有限公司 | Anti-impact wear-resistant elbow with support |
| CN206468969U (en) * | 2017-02-21 | 2017-09-05 | 无锡康克瑞管业科技有限公司 | Concrete conveyance double-layer wear-resistant bend pipe |
| CN208719653U (en) * | 2018-08-24 | 2019-04-09 | 三一汽车制造有限公司 | From filled type bend pipe, pipe-line transportation system and concrete pump |
-
2018
- 2018-08-24 CN CN201810975950.4A patent/CN108843879A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB770413A (en) * | 1952-12-02 | 1957-03-20 | Oskar Biegel G M B H | Improvements in or relating to pipe elbows for pneumatic and hydraulic conveyor pipelines |
| US4387914A (en) * | 1981-06-08 | 1983-06-14 | Hammertek Corporation | Short radius, low wear elbow |
| EP0111589A1 (en) * | 1982-12-23 | 1984-06-27 | Karl-Heinz Stanelle | Elbow element |
| US4865353A (en) * | 1988-02-29 | 1989-09-12 | Osborne Lee R | Abrasion resistant ceramic elbow |
| US5060984A (en) * | 1991-01-22 | 1991-10-29 | Hammertek Corporation | Short radius, low wear elbow |
| JPH07248089A (en) * | 1994-03-09 | 1995-09-26 | Tamotsu Enda | Reinforcing structure of corner part of pressure feed pipe |
| JP3005474U (en) * | 1994-06-21 | 1994-12-20 | 錦福 劉 | Regenerative wear-resistant bend for pneumatic transportation |
| CN2426559Y (en) * | 2000-05-20 | 2001-04-11 | 张玮 | Wear-resistant bend for pipeline |
| US7300074B1 (en) * | 2003-12-22 | 2007-11-27 | Pelletron Corporation | Elbow fitting with step feature for pneumatic transport system |
| DE102005051766A1 (en) * | 2005-10-27 | 2007-05-03 | Esser-Werke Gmbh & Co. Kg | Pipe bend and method for producing a pipe bend |
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| CN101089445A (en) * | 2006-06-18 | 2007-12-19 | 程献华 | Wear-resistant bend |
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| CN201462281U (en) * | 2009-08-07 | 2010-05-12 | 重庆钢铁(集团)有限责任公司 | Delivery pipeline bend structure of powder storage hopper |
| CN202419005U (en) * | 2011-10-28 | 2012-09-05 | 三一重工股份有限公司 | Embedded compound elbow and concrete conveying equipment |
| CN202834534U (en) * | 2012-09-11 | 2013-03-27 | 三一重工股份有限公司 | Concrete conveying elbow pipe and concrete pumping device |
| CN203273155U (en) * | 2013-05-19 | 2013-11-06 | 鞍钢集团矿业公司 | Wear-resisting elbow for pulp pipeline |
| CN203549241U (en) * | 2013-11-19 | 2014-04-16 | 中联重科股份有限公司 | Conveying elbow and concrete conveying device |
| CN204573429U (en) * | 2015-03-06 | 2015-08-19 | 长沙矿山研究院有限责任公司 | A kind of coarse aggregate filling abrasion-proof bent tube |
| CN105202299A (en) * | 2015-08-08 | 2015-12-30 | 周朝辉 | Auto-fill two-layer in-half wear resistant elbow of concrete pump truck and manufacturing method of wear resistant elbow |
| CN106523831A (en) * | 2017-01-09 | 2017-03-22 | 中冶北方（大连）工程技术有限公司 | Anti-impact wear-resistant elbow with support |
| CN206468969U (en) * | 2017-02-21 | 2017-09-05 | 无锡康克瑞管业科技有限公司 | Concrete conveyance double-layer wear-resistant bend pipe |
| CN208719653U (en) * | 2018-08-24 | 2019-04-09 | 三一汽车制造有限公司 | From filled type bend pipe, pipe-line transportation system and concrete pump |
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| 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 |
Application publication date: 20181120 |
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| RJ01 | Rejection of invention patent application after publication |