CN109541389A - A kind of electric mechanical fault detection means - Google Patents
A kind of electric mechanical fault detection means Download PDFInfo
- Publication number
- CN109541389A CN109541389A CN201811496925.4A CN201811496925A CN109541389A CN 109541389 A CN109541389 A CN 109541389A CN 201811496925 A CN201811496925 A CN 201811496925A CN 109541389 A CN109541389 A CN 109541389A
- Authority
- CN
- China
- Prior art keywords
- detection means
- fault detection
- display screen
- crust
- electric mechanical
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000741 silica gel Substances 0.000 claims abstract description 27
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000005389 magnetism Effects 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A kind of electric mechanical fault detection means, is related to electronic detecting device.Equipped with crust of the device, the upper surface side of crust of the device is equipped with data line, one end of data line is fixedly connected with detector, the front side of crust of the device is equipped with display screen installing port, display screen installing port interior central is fixed with display screen, upper and lower is equipped with undercut, and magnetic silica gel brush is equipped in the undercut of lower section, is equipped with electromagnetism iron bar in the undercut of top；Magnetic silica gel brush both ends are welded with connection strap, connection strap one end connects side pulley, and spring groove is equipped with below connection strap, and spring groove inner vertical is equipped with reset spring, reset spring upper end is fixedly welded with connecting column, and connecting column upper end is fixedly welded with connection strap lower surface；The lower position for being located at display screen installing port in front of crust of the device is equipped with control panel, and one side is equipped with cleaning switch, and both side surface is equipped with heat release hole, and corner block is fixedly welded with below heat release hole, is fixedly welded with grip on the inside of corner block.
Description
Technical field
The present invention relates to electronic detecting devices, more particularly, to a kind of electric mechanical fault detection means.
Background technique
With the raising of generator manufacture level and the raising of operation of power networks stability, generator single-machine capacity gradually increases
Add.The safe operation of large-scale generator will play increasingly important role to the safe and stable operation of entire power grid.Single machine holds
The increase of amount is so that electric power, mechanical force suffered by Generator Stator Winding Ends are increasing.Because suffered by generator stator end
Electromagnetic force is twice of mains frequency, therefore when the intrinsic frequency of End winding is close to 100Hz, and Stator End Winding will occur
Resonance, in motor operation may because its vibration amplitude increases occur End winding and structural member loosen, abrasion, insulation damage
It is bad, in turn result in accident.Thus analyzing turbine generator stator end basket vibration characteristic and exploring fault monitoring method seems
Particularly important, current detection device shows that screen is particularly easy to contamination dust under the bad environment of some air qualities,
It is very inconvenient to need to wipe when detection, and without hand-held setting, very easy skating causes accurate device impaired.
Chinese patent CN104699076 discloses a kind of electric machine control system and its microelectronics fault detection method and dress
It sets, pulse width modulation duty and two current sample time points is calculated after electric machine control system enters main control process, are being counted
When calculating deadline and the time interval between preceding current sample time point greater than default detection time interval, stop main control
Process controls ADC sampling module sampling external reference voltage to obtain digital reference voltage value, further according to this in detection procedure
Digital reference voltage value and preset voltage value judge whether it breaks down, if so, driving motor control system controls motor
It is out of service and enter fault protection scheme, if it is not, then exiting detection procedure, and restore main control process, so as to ADC
Sampling module carries out effective fault detection, and restores main control process so that motor is normal in ADC sampling module fault-free
Operation, guarantees that the operation of motor is not influenced by fault detection.But the detection device is to judge electrical fault by voltage value,
Other electrical faults cannot be analyzed.
Summary of the invention
The technical issues of it is an object of the invention to for proposing in background technique, provide a kind of electric mechanical fault detection
Device.
The present invention is equipped with crust of the device, and the upper surface side of described device shell is equipped with data line, and the data pass
One end of defeated line is fixedly connected with detector, and the front side of crust of the device is equipped with display screen installing port, in the display screen installing port
Portion is fixed with display screen between two parties, and the upper and lower of the display screen installing port is equipped with undercut, dark below display screen installing port
It is equipped with magnetic silica gel brush in slot, electromagnetism iron bar is equipped in the undercut above display screen installing port, the magnetism silica gel brush both ends are equal
It is fixedly welded with connection strap, one end of the connection strap connects side pulley, is equipped with spring groove, the spring groove below connection strap
Inner vertical is equipped with reset spring, and the upper end of the reset spring is fixedly welded with connecting column, the upper end of the connecting column and company
Narrow bars lower surface is fixedly welded, and the lower position that display screen installing port is located in front of described device shell is equipped with control panel, dress
The one side for setting shell is equipped with cleaning switch, and the both side surface of crust of the device is equipped at least two heat release hole, and described at least two dissipates
It is fixedly welded with one group of corner block below hot hole, is fixedly welded with grip on the inside of the corner block, the inside of corner block is also
It is movably equipped with elastic block rubber, the both ends of the elastic block rubber are fixedly connected with plastic cement pulley, and the inside of corner block, which is equipped with, to be slided
Race, the trailing flank of crust of the device are equipped with battery case, and the top of the battery case is equipped with bayonet, and the lower port of battery case passes through hinge
Chain is hinged with battery case cover board, and the surface of the battery case cover board is fixed with buckle.
It can be equipped with permanent magnetism iron bar in the magnetism silica gel brush, the surface of the permanent magnetism iron bar is covered with silica gel.
The magnetism silica gel brush is parallel to each other with electromagnetism iron bar, and electromagnetism iron bar keeps electricity by internal circuit and cleaning switch
Connection.
The corner block can be equipped with two groups totally 4 pieces, be movably equipped with an elastic block rubber, the bullet between every group of corner block
The medial surface of property rubber block is fixedly welded at least two compressed spring, and the plastic cement moveable roller at elastic block rubber both ends is arranged in
In pulley groove.
The bayonet is set to the middle position above battery case, and the buckle is set to the top lean-with of battery case cover board
It sets, the battery case cover board and bayonet Matching installation.
Technical effect and advantage of the invention is as follows:
1, pressing cleaning switch can make electromagnet item be powered with magnetism, and on the magnetic pole of lower section and magnetic silica gel brush
The magnetic pole of side on the contrary, therefore the upward gravitation that is subject to of magnetism silica gel brush be enough to move to it into top from below, make magnetic silica gel
Brush swipes down removing dust on the screen；
2, the plastic cement moveable roller at elastic block rubber both ends is arranged in pulley groove, and compressed spring can make elastic block rubber
Tightly push down the hand for holding grip, be not easy device from being detached from hand.
Detailed description of the invention
Fig. 1 is the structure composition schematic diagram of the embodiment of the present invention.
Fig. 2 is the front section view of the embodiment of the present invention.
Fig. 3 is the region A enlarged drawing in Fig. 2.
Fig. 4 is the B direction schematic diagram of Fig. 1.
It is each to mark are as follows: 1, crust of the device in Fig. 1~4；2, data line；3, detector；4, display screen installing port；
5, display screen；6, magnetic silica gel brush；7, electromagnetism iron bar；8, connection strap；9, side pulley；10, spring groove；11, reset spring；
12, connecting column；13, control panel；14, cleaning switch；15, heat release hole；16, corner block；17, grip；18, elastic rubber
Block；19, plastic cement pulley；20, pulley groove；21, battery case；22, bayonet；23, hinge；24, battery case cover board；25, it buckles.
Specific embodiment
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
Referring to Fig. 1~4, the embodiment of the present invention is equipped with crust of the device 1, and the upper surface side of crust of the device 1 is passed equipped with data
Defeated line 2, one end of the data line 2 are fixedly connected with detector 3, and the front side of crust of the device 1 is installed equipped with display screen
Mouth 4,4 interior central of display screen installing port is fixed with display screen 5, and the upper and lower of display screen installing port 4 is equipped with undercut, display
Shield and be equipped with magnetic silica gel brush 6 in the undercut of 4 lower section of installing port, is equipped with electromagnetism iron bar 7 in the undercut of 4 top of display screen installing port,
Magnetic 6 both ends of silica gel brush are fixedly welded with connection strap 8, and one end of connection strap 8 is connected with side pulley 9, sets below connection strap 8
There is spring groove 10,10 inner vertical of spring groove is equipped with reset spring 11, and the upper end of reset spring 11 is fixedly welded with connecting column 12,
The upper end of connecting column 12 is fixedly welded with 8 lower surface of connection strap, and the lower orientation of display screen installing port 4 is located in front of crust of the device 1
Control panel 13 is installed, the one side of crust of the device 1 is equipped with cleaning switch 14, and the both side surface of crust of the device 1 is equipped at least 2
A heat release hole 15 is fixedly welded with one group of corner block 16 below at least two heat release hole 15, is fixedly welded with hand on the inside of corner block 16
Handle 17, the inside of corner block 16 are also movably equipped with elastic block rubber 18, and the both ends of elastic block rubber 18 are fixedly connected with plastic cement
Pulley 19, the inside of corner block 16 are equipped with pulley groove 20, and the trailing flank of crust of the device 1 is equipped with battery case 21, battery case 21 it is upper
Side is equipped with bayonet 22, and the lower port of battery case 21 is hinged with battery case cover board 24, the surface of battery case cover board 24 by hinge 23
It is fixed with buckle 25.
The inside of the magnetism silica gel brush 6 is equipped with permanent magnetism iron bar, and the surface of the permanent magnetism iron bar is covered with silica gel, sets in this way
Meter is so that magnetic silica gel brush 6 has magnetism and will not scratching screen when cleaning screen.
The magnetism silica gel brush 6 and electromagnetism iron bar 7 are parallel to each other, and electromagnetism iron bar 7 passes through internal circuit and cleaning switch 14
Electrical connection is kept, pressing cleaning switch 14 can make electromagnet item 7 be powered with magnetism, and the magnetic pole of lower section and magnetic silica gel
The magnetic pole of 6 top of brush on the contrary, the upward gravitation that event magnetism silica gel brush 6 is subject to is enough to move to it into top from below, open by cleaning
It closes 14 and is to provide the pulse current of discontinuity, therefore magnetic silica gel brush 6 is made to swipe removing dust down on the screen.
The corner block 16 is equipped with two groups totally 4 pieces, is movably equipped with an elastic block rubber 18, bullet between every group of corner block 16
Property rubber block 18 medial surface be fixedly welded with several compressed springs, and the plastic cement pulley 19 at 18 both ends of elastic block rubber is living
Dynamic to be arranged in pulley groove 20, compressed spring can make elastic block rubber 18 press tightly against the hand for holding grip 17, make to fill
It sets and is not easy from being detached from hand.
The bayonet 22 is set to the middle position of 21 top of battery case, and buckle 25 is set to the top of battery case cover board 24
Middle position, and battery case cover board 24 and 22 Matching installation of bayonet.
The working principle of the invention is given below:
When operated, first 3 detection positions for being inserted into device to be detected first be will test, hand is then inserted into elastic block rubber
In 18 gaps formed with grip 17, grip 17 is held, obtains the information of detection by display screen 5 in the process, it can
To press switching and the others data analysis operation that the key on control panel 13 carries out detection project by one hand.Work as screen
When curtain has dust to influence reading, magnetic silica gel brush 6 can be made to scrape removal down on the screen by pressing cleaning switch 14
Dust unclamps cleaning switch 14 after removing, then magnetic silica gel brush 6 moves down reset under the action of reset spring 11, it is long
The device of time service has a heat condition, and the heat release hole 15 of 1 two sides of crust of the device can be effectively performed heat dissipation, outside device
The battery case 21 at 1 rear of shell can carry out replacement operation to the battery that device is powered.
Claims (10)
1. a kind of electric mechanical fault detection means, it is characterised in that be equipped with crust of the device, the upper surface one of described device shell
Side is equipped with data line, and one end of the data line is fixedly connected with detector, and the front side of crust of the device is equipped with display
Shield installing port, the display screen installing port interior central is fixed with display screen, and the upper and lower of the display screen installing port is all provided with
There is undercut, magnetic silica gel brush is equipped in the undercut below display screen installing port, is equipped with electricity in the undercut above display screen installing port
Magnet strip, the magnetism silica gel brush both ends are fixedly welded with connection strap, and one end of the connection strap connects side pulley, connection
Spring groove is equipped with below item, the spring groove inner vertical is equipped with reset spring, and the upper end of the reset spring is fixedly welded with
Connecting column, upper end and the connection strap lower surface of the connecting column are fixedly welded, and display screen is located in front of described device shell and is installed
The lower position of mouth is equipped with control panel, and the one side of crust of the device is equipped with cleaning switch, and the both side surface of crust of the device is equipped with
At least two heat release hole, is fixedly welded with one group of corner block below at least two heat release hole, fixed on the inside of the corner block
It is welded with grip, the inside of corner block is also movably equipped with elastic block rubber, and the both ends of the elastic block rubber are fixedly connected with
Plastic cement pulley, the inside of corner block are equipped with pulley groove, and the trailing flank of crust of the device is equipped with battery case, sets above the battery case
There is bayonet, the lower port of battery case is hinged with battery case cover board by hinge, and the surface of the battery case cover board is fixed with card
Button.
2. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that be equipped in the magnetism silica gel brush
Permanent magnetism iron bar.
3. a kind of electric mechanical fault detection means as claimed in claim 2, it is characterised in that cover on the surface of the permanent magnetism iron bar
It is stamped silica gel.
4. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that the magnetism silica gel brush and electromagnetism
Iron bar is parallel to each other.
5. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that the electromagnetism iron bar passes through inside
Circuit keeps being electrically connected with cleaning switch.
6. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that the corner block is equipped with two groups totally 4
Block is movably equipped with an elastic block rubber between every group of corner block.
7. a kind of electric mechanical fault detection means as claimed in claim 6, it is characterised in that the inside of the elastic block rubber
Face is fixedly welded at least two compressed spring.
8. a kind of electric mechanical fault detection means as claimed in claim 6, it is characterised in that the plastic cement at elastic block rubber both ends
Moveable roller is arranged in pulley groove.
9. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that the bayonet is set on battery case
The middle position of side, the buckle are set to the top middle position of battery case cover board.
10. a kind of electric mechanical fault detection means as described in claim 1, it is characterised in that the battery case cover board and bayonet
Matching installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496925.4A CN109541389A (en) | 2018-12-07 | 2018-12-07 | A kind of electric mechanical fault detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811496925.4A CN109541389A (en) | 2018-12-07 | 2018-12-07 | A kind of electric mechanical fault detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109541389A true CN109541389A (en) | 2019-03-29 |
Family
ID=65854001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811496925.4A Pending CN109541389A (en) | 2018-12-07 | 2018-12-07 | A kind of electric mechanical fault detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749824A (en) * | 2019-07-25 | 2020-02-04 | 重庆市弘鼎圣科技有限公司 | Automatically controlled experimental detection device of new energy automobile battery motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625860A (en) * | 2015-01-26 | 2015-05-20 | 孙维 | Numerically-controlled machine tool with driving source |
| CN104699076A (en) * | 2015-02-11 | 2015-06-10 | 广东威灵电机制造有限公司 | Motor control system and micro-electronic fault detection method and device thereof |
| CN104698331A (en) * | 2015-02-10 | 2015-06-10 | 国家电网公司 | Detecting cart of iron core fault of handhold type generator |
| CN205754636U (en) * | 2016-05-17 | 2016-11-30 | 南安市威速电子科技有限公司 | A kind of novel electric power apparatus failure detector |
| CN205732030U (en) * | 2016-05-24 | 2016-11-30 | 南安上远玻璃有限公司 | A kind of glass cleaning cleans device with efficient fine motion |
| CN205762455U (en) * | 2016-05-08 | 2016-12-07 | 江苏越城照明电器科技有限公司 | A kind of mine operation illuminating lamp |
| CN107552420A (en) * | 2017-08-01 | 2018-01-09 | 杨航杰 | A kind of automatic removing ash dust collecting method of LED display |
| CN108154720A (en) * | 2016-12-06 | 2018-06-12 | 岳池县师范附属小学校 | Teaching projection device automatic dust removing apparatus |
| CN108160594A (en) * | 2017-12-06 | 2018-06-15 | 郑州莉迪亚医药科技有限公司 | A kind of Chinese medicine pre-processing device with height adjusting function |
| CN108808523A (en) * | 2018-06-29 | 2018-11-13 | 陈璐 | A kind of multifunction power equipment box with ventilation and heat function |
-
2018
- 2018-12-07 CN CN201811496925.4A patent/CN109541389A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625860A (en) * | 2015-01-26 | 2015-05-20 | 孙维 | Numerically-controlled machine tool with driving source |
| CN104698331A (en) * | 2015-02-10 | 2015-06-10 | 国家电网公司 | Detecting cart of iron core fault of handhold type generator |
| CN104699076A (en) * | 2015-02-11 | 2015-06-10 | 广东威灵电机制造有限公司 | Motor control system and micro-electronic fault detection method and device thereof |
| CN205762455U (en) * | 2016-05-08 | 2016-12-07 | 江苏越城照明电器科技有限公司 | A kind of mine operation illuminating lamp |
| CN205754636U (en) * | 2016-05-17 | 2016-11-30 | 南安市威速电子科技有限公司 | A kind of novel electric power apparatus failure detector |
| CN205732030U (en) * | 2016-05-24 | 2016-11-30 | 南安上远玻璃有限公司 | A kind of glass cleaning cleans device with efficient fine motion |
| CN108154720A (en) * | 2016-12-06 | 2018-06-12 | 岳池县师范附属小学校 | Teaching projection device automatic dust removing apparatus |
| CN107552420A (en) * | 2017-08-01 | 2018-01-09 | 杨航杰 | A kind of automatic removing ash dust collecting method of LED display |
| CN108160594A (en) * | 2017-12-06 | 2018-06-15 | 郑州莉迪亚医药科技有限公司 | A kind of Chinese medicine pre-processing device with height adjusting function |
| CN108808523A (en) * | 2018-06-29 | 2018-11-13 | 陈璐 | A kind of multifunction power equipment box with ventilation and heat function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749824A (en) * | 2019-07-25 | 2020-02-04 | 重庆市弘鼎圣科技有限公司 | Automatically controlled experimental detection device of new energy automobile battery motor |
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|---|---|---|---|
| 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 |
Application publication date: 20190329 |
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| RJ01 | Rejection of invention patent application after publication |