CN110919588A - Device for assembling check ring for hole and using method thereof - Google Patents
Device for assembling check ring for hole and using method thereof Download PDFInfo
- Publication number
- CN110919588A CN110919588A CN201911236241.5A CN201911236241A CN110919588A CN 110919588 A CN110919588 A CN 110919588A CN 201911236241 A CN201911236241 A CN 201911236241A CN 110919588 A CN110919588 A CN 110919588A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- hole
- handle
- pin
- retainer ring
- 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
Images
Classifications
-
- 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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
Abstract
The invention provides a device for assembling a retainer ring for a hole and a using method thereof, wherein the device comprises a first rotating shaft handle, a second rotating shaft handle, a first connecting piece and a second double-hole rotating sleeve; grip first handle and second handle and be close to each other or separate for the first pivot of second pivot laminating rotates, drives the mutual approaching to and separation between first pin and the second pin, realizes the assembly and the dismantlement of retaining ring for the hole. Therefore, the L-shaped rotating shaft only rotates relatively in the hole cavity in the operation process, so that the L-shaped rotating shaft is not limited by the space of the inner cavity of the hole like a check ring clamp for a finished X-shaped hole and is not influenced by the depth of the hole, and the length of the long shaft of the L-shaped rotating shaft can be selected according to the depth of the hole. The pin drives the axes of the retainer ring in the contraction and expansion operation process to be always kept in a parallel state, and the phenomenon that the retainer ring is slipped off when the retainer ring is clamped by the retainer ring clamp for the X-shaped hole of a finished product is avoided. Through the improvement, the two defects of the traditional check ring pliers for the X-shaped hole finished product existing in the process of disassembling and assembling the check ring in the deep hole are overcome.
Description
Technical Field
The invention belongs to the technical field of aircraft engine assembly, and particularly relates to a retainer ring device for an assembly hole and a using method thereof.
Background
In aeroengine assembling process, often can meet some hole retaining rings that are in the deep hole of dismouting, its structure of finished product hole retaining ring pincers commonly used is mostly X type pliers, and its pliers top is two pincers posts, and in inserting two pincers posts at pliers top during the use the mounting hole of hole retaining ring, the shrink that realizes the retaining ring and expand the division through tightly holding or relaxing two pincers handles at pliers rear portion with the hand. The finished circlip pliers have two very disadvantageous disadvantages in use, particularly in deep holes, due to their construction. One is because its X type structure, and its handle space of opening and shutting is limited when two handles are longer dismouting retaining ring in the hole, and it is biggest to have opened and shut in the hole probably to handle, but the retaining ring still probably is in the draw-in groove, does not reach the elastic deformation volume that can take out. The second is still because it is X type structure, and when two pincers posts at pliers top were inserting the mounting hole of retaining ring and were tightened up the retaining ring, two pincers posts were in the state of opening certain angle outward always, and pincers post and retaining ring had the trend of slippage always, consequently often carries out slight coping or bending to the pincers post at top in the in-service use to make its in-service slip avoid the slippage. The disadvantages of the retainer ring pliers for the finished hole are more obvious when the hole is deeper and smaller in diameter.
Therefore, the existing assembly scheme of the hole check ring has the technical problems of poor space applicability, hole wall abrasion and the like.
Disclosure of Invention
The embodiment of the invention provides a device for assembling a retainer ring for a hole and a using method thereof, which are used for solving at least part of technical problems.
In a first aspect, an embodiment of the present invention provides an apparatus for assembling a retainer ring for a hole, including:
the first rotating shaft handle, the second rotating shaft handle, the first connecting piece and the second double-hole rotating sleeve are arranged on the first rotating shaft handle;
the first rotating shaft handle comprises a first rotating shaft, a first handle arranged at one end of the first rotating shaft and a first crank arranged at the other end of the first rotating shaft, the first rotating shaft and the first handle are converted into an L shape, a first pin is arranged on the first crank, and the first pin is used for tensioning one end of the retainer ring for the hole;
the second rotating shaft handle comprises a second rotating shaft, a second handle arranged at one end of the second rotating shaft and a second crank arranged at the other end of the second rotating shaft, the second rotating shaft and the second handle are assembled into an L shape, a second pin is arranged on the second crank, and the second pin is used for tensioning the other end of the hole retainer ring;
the first connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first handle, and the second connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first pin;
the first handle and the second handle are held to be close to or separated from each other, so that the second rotating shaft is attached to the first rotating shaft to rotate, the first pin and the second pin are driven to be close to and separated from each other, and the hole retainer ring is assembled and disassembled.
Optionally, the first crank and the first pin are located on the same side of the first rotating shaft as the first handle;
the second crank and the second pin are located on the same side of the second rotating shaft as the second handle.
Optionally, the first connecting piece and the second connecting piece are both double-hole fixing sleeves;
the fixed cover of diplopore is the annular cover, first pivot with the second pivot all stretches into in the fixed cover of diplopore, the laminating of the fixed cover of diplopore the one side of first pivot with the fixed welding of first pivot, the laminating of diplopore stationary plane the one side of second pivot with second pivot swing joint.
Optionally, the length ranges of the first rotating shaft and the second rotating shaft are both 0.01 m to 10 m.
Optionally, the first pin is detachably connected to the first rotating shaft, and the second pin is detachably connected to the second rotating shaft.
In a second aspect, an embodiment of the present invention provides a method for using a device for assembling a circlip for a hole, which is applied to the device for assembling a circlip for a hole described in any one of the first aspect; the method comprises the following steps:
providing a device for assembling the retainer ring for the hole, wherein the device is matched with the diameter of the retainer ring for the hole and the deep hole in which the retainer ring is arranged;
extending a first rotating shaft and a second rotating shaft of the retainer ring device for the assembly hole into the deep hole;
the relative angle of the first pin and the second pin is changed by holding the first handle and the second handle, so that the first pin and the second pin correspondingly extend into two ends of the hole check ring to drive the hole check ring to contract or expand.
The device for assembling the hole check ring and the using method thereof provided by the embodiment of the invention comprise a first rotating shaft handle, a second rotating shaft handle, a first connecting piece and a second double-hole rotating sleeve; the first rotating shaft handle comprises a first rotating shaft, a first handle arranged at one end of the first rotating shaft and a first pin arranged at the other end of the first rotating shaft, the first rotating shaft and the first handle are converted into an L shape, and the first pin is used for tensioning one end of the check ring for the hole; the second rotating shaft handle comprises a second rotating shaft, a second handle arranged at one end of the second rotating shaft and a second pin arranged at the other end of the second rotating shaft, the second rotating shaft and the second handle are assembled into an L shape, and the second pin is used for tensioning the other end of the hole retainer ring; the first connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first handle, and the second connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first pin; the first handle and the second handle are held to be close to or separated from each other, so that the second rotating shaft is attached to the first rotating shaft to rotate, the first pin and the second pin are driven to be close to and separated from each other, and the hole retainer ring is assembled and disassembled. Therefore, the L-shaped rotating shaft only rotates relatively in the hole cavity in the operation process, so that the L-shaped rotating shaft is not limited by the space of the inner cavity of the hole like a check ring clamp for a finished X-shaped hole and is not influenced by the depth of the hole, and the length of the long shaft of the L-shaped rotating shaft can be selected according to the depth of the hole. The pin drives the axes of the retainer ring in the contraction and expansion operation process to be always kept in a parallel state, and the phenomenon that the retainer ring is slipped off when the retainer ring is clamped by the retainer ring clamp for the X-shaped hole of a finished product is avoided. Through the improvement, the two defects of the traditional check ring pliers for the X-shaped hole finished product existing in the process of disassembling and assembling the check ring in the deep hole are overcome. Whole installation or decomposition process convenient operation and stable high-efficient, the dismouting efficiency through contrasting novel hole with retaining ring device has improved 5 ~ 10 times than traditional hole with retaining ring pincers.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for assembling a retainer ring for an aperture according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of an apparatus for assembling a retainer ring for an aperture according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of an apparatus for assembling a retainer ring for an aperture according to an embodiment of the present invention;
fig. 4 is a schematic view of a state of use of an apparatus for assembling a retainer ring for an aperture according to an embodiment of the present invention;
fig. 5 is a schematic view showing another use state of the apparatus for assembling a retainer ring for an aperture according to the embodiment of the present invention;
fig. 6 is a schematic view of another usage state of the device for assembling a retainer ring for an aperture according to the embodiment of the present invention.
Summary of reference numerals:
the handle comprises a first rotating shaft 1, a second rotating shaft 2, a first connecting piece 3, a second connecting piece 4, a first handle 9, a second handle 10, a first pin 7 and a second pin 8; a first handle 9 and a second handle 10.
Detailed Description
The invention is described in further detail below with reference to the drawings.
Referring to fig. 1 to 3, an apparatus for assembling a retainer ring for a bore according to an embodiment of the present invention includes:
the first rotating shaft handle, the second rotating shaft handle, the first connecting piece 3 and the second double-hole rotating sleeve are arranged on the rotating shaft;
the first rotating shaft handle comprises a first rotating shaft 1, a first handle 9 arranged at one end of the first rotating shaft 1 and a first crank 5 arranged at the other end of the first rotating shaft 1, the first rotating shaft 1 and the first handle 9 are converted into an L shape, a first pin 7 is arranged on the first crank 5, and the first pin 7 is used for tensioning one end of a hole check ring;
the second rotating shaft handle comprises a second rotating shaft 2, a second handle 10 arranged at one end of the second rotating shaft 2 and a second crank 6 arranged at the other end of the second rotating shaft 2, the second rotating shaft 2 and the second handle 10 are assembled into an L shape, a second pin 8 is arranged on the second crank 6, and the second pin 8 is used for tensioning the other end of the hole retainer ring;
the first connecting piece 3 fixes one ends of the first rotating shaft 1 and the second rotating shaft 2 close to the first handle 9, and the second connecting piece 4 fixes one ends of the first rotating shaft 1 and the second rotating shaft 2 close to the first pin 7;
the first handle 9 and the second handle 10 are held to be close to or separated from each other, so that the second rotating shaft 2 is attached to the first rotating shaft 1 to rotate, the first pin 7 and the second pin 8 are driven to be close to or separated from each other, and the assembling and disassembling of the hole check ring are realized.
Optionally, the first crank 5 and the first pin 7 are located on the same side of the first rotating shaft 1 as the first handle 9;
the second crank 6 and the second pin 8 are located on the same side of the second shaft 2 as the second handle 10.
Optionally, the first connecting piece 3 and the second connecting piece 4 are both double-hole fixing sleeves;
the fixed cover of diplopore is the annular cover, first pivot 1 with second pivot 2 all stretches into in the fixed cover of diplopore, the laminating of the fixed cover of diplopore first pivot 1 one side with first pivot 1 fixed weld (as shown in fig. 2H), the laminating of diplopore stationary plane the second pivot 2 one side with 2 swing joint of second pivot (as shown in fig. 2G).
Optionally, the length ranges of the first rotating shaft 1 and the second rotating shaft 2 are both 0.01 m-10 m.
Optionally, the first pin 7 is detachably connected to the first rotating shaft 1, and the second pin 8 is detachably connected to the second rotating shaft 2.
In addition, the embodiment of the invention provides a using method of the device for assembling the retainer ring for the hole, which is applied to the device for assembling the retainer ring for the hole; the method comprises the following steps:
providing a device for assembling the retainer ring for the hole, wherein the device is matched with the diameter of the retainer ring for the hole and the deep hole in which the retainer ring is arranged;
extending a first rotating shaft 1 and a second rotating shaft 2 of the retainer ring device for the assembly hole into the deep hole;
the relative angle between the first pin 7 and the second pin 8 is changed by holding the first handle 9 and the second handle 10, so that the first pin 7 and the second pin 8 correspondingly extend into two ends of the hole check ring to drive the hole check ring to contract or expand.
In one embodiment, as shown in fig. 1 to 6, the structure diagram of the device for assembling the retainer ring for the deep hole of the aircraft engine is shown. The device includes first pivot 1 and set up in first epaxial first crank 5, first pin 7 and first handle 9 of first pivot, second pivot 2 and set up in second crank 6, second pin 8 and second handle 10 on the father's pivot 2 for fix the fixed cover of first diplopore 3 and the rotation of second diplopore cover 4 of first pivot and second pivot. Welding is carried out according to the required positions in the figures 1 to 3, and after assembly and welding, the first rotating shaft 1, the first double-hole fixing sleeve 3, the first crank 5 and the first pin 7 are integrated, and the second rotating shaft 2, the second crank 6 and the second pin 8 are integrated. The right half body can rotate relatively to the left half body due to the restriction action of the first double-hole fixing sleeve 3 and the second double-hole rotating sleeve 4, see fig. 5 and 6. The operation process of dismantling the hole check ring from the shaft hole by the hole check ring device is as follows: the left and right handles of the novel hole check ring device are respectively held by the left and right hands, the first pin 7 and the second pin 8 of the device are respectively inserted into the hole check ring dismounting holes in the shaft hole, the left and right handles of the hole check ring device are tightly held by a single hand, the left and right handles can rotate by using the long shaft axis as a rotating shaft, the crank and the pins on the long shaft are driven to rotate to shrink the check ring, the check ring is taken out from the shaft hole when the check ring shrinks to the complete clamping groove separated from the shaft hole, and the same installation process is the reverse process of dismantling.
The device for assembling the hole check ring and the using method thereof provided by the embodiment of the invention comprise a first rotating shaft handle, a second rotating shaft handle, a first connecting piece and a second double-hole rotating sleeve; the first rotating shaft handle comprises a first rotating shaft, a first handle arranged at one end of the first rotating shaft and a first pin arranged at the other end of the first rotating shaft, the first rotating shaft and the first handle are converted into an L shape, and the first pin is used for tensioning one end of the check ring for the hole; the second rotating shaft handle comprises a second rotating shaft, a second handle arranged at one end of the second rotating shaft and a second pin arranged at the other end of the second rotating shaft, the second rotating shaft and the second handle are assembled into an L shape, and the second pin is used for tensioning the other end of the hole retainer ring; the first connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first handle, and the second connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first pin; the first handle and the second handle are held to be close to or separated from each other, so that the second rotating shaft is attached to the first rotating shaft to rotate, the first pin and the second pin are driven to be close to and separated from each other, and the hole retainer ring is assembled and disassembled. Therefore, the L-shaped rotating shaft only rotates relatively in the hole cavity in the operation process, so that the L-shaped rotating shaft is not limited by the space of the inner cavity of the hole like a check ring clamp for a finished X-shaped hole and is not influenced by the depth of the hole, and the length of the long shaft of the L-shaped rotating shaft can be selected according to the depth of the hole. The pin drives the axes of the retainer ring in the contraction and expansion operation process to be always kept in a parallel state, and the phenomenon that the retainer ring is slipped off when the retainer ring is clamped by the retainer ring clamp for the X-shaped hole of a finished product is avoided. Through the improvement, the two defects of the traditional check ring pliers for the X-shaped hole finished product existing in the process of disassembling and assembling the check ring in the deep hole are overcome. Whole installation or decomposition process convenient operation and stable high-efficient, the dismouting efficiency through contrasting novel hole with retaining ring device has improved 5 ~ 10 times than traditional hole with retaining ring pincers.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims (6)
1. A device for assembling a retainer ring for a hole, characterized in that: the method comprises the following steps:
the first rotating shaft handle, the second rotating shaft handle, the first connecting piece and the second double-hole rotating sleeve are arranged on the first rotating shaft handle;
the first rotating shaft handle comprises a first rotating shaft, a first handle arranged at one end of the first rotating shaft and a first crank arranged at the other end of the first rotating shaft, the first rotating shaft and the first handle are converted into an L shape, a first pin is arranged on the first crank, and the first pin is used for tensioning one end of the retainer ring for the hole;
the second rotating shaft handle comprises a second rotating shaft, a second handle arranged at one end of the second rotating shaft and a second crank arranged at the other end of the second rotating shaft, the second rotating shaft and the second handle are assembled into an L shape, a second pin is arranged on the second crank, and the second pin is used for tensioning the other end of the hole retainer ring;
the first connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first handle, and the second connecting piece is used for fixing one ends of the first rotating shaft and the second rotating shaft, which are close to the first pin;
the first handle and the second handle are held to be close to or separated from each other, so that the second rotating shaft is attached to the first rotating shaft to rotate, the first pin and the second pin are driven to be close to and separated from each other, and the hole retainer ring is assembled and disassembled.
2. The device of claim 1, wherein the first crank and the first pin are on a same side of the first axis of rotation as the first handle;
the second crank and the second pin are located on the same side of the second rotating shaft as the second handle.
3. The device of claim 2, wherein said first connector and said second connector are each a dual bore harness;
the fixed cover of diplopore is the annular cover, first pivot with the second pivot all stretches into in the fixed cover of diplopore, the laminating of the fixed cover of diplopore the one side of first pivot with the fixed welding of first pivot, the laminating of diplopore stationary plane the one side of second pivot with second pivot swing joint.
4. The apparatus of claim 3, wherein the first shaft and the second shaft each have a length in a range of 0.01 meters to 10 meters.
5. The device of any one of claims 1 to 4, wherein the first pin is removably coupled to the first shaft and the second pin is removably coupled to the second shaft.
6. A method of using an apparatus for assembling a circlip for a hole, characterized by applying the apparatus for assembling a circlip for a hole according to any one of claims 1 to 5; the method comprises the following steps:
providing a device for assembling the retainer ring for the hole, wherein the device is matched with the diameter of the retainer ring for the hole and the deep hole in which the retainer ring is arranged;
extending a first rotating shaft and a second rotating shaft of the retainer ring device for the assembly hole into the deep hole;
the relative angle of the first pin and the second pin is changed by holding the first handle and the second handle, so that the first pin and the second pin correspondingly extend into two ends of the hole check ring to drive the hole check ring to contract or expand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236241.5A CN110919588A (en) | 2019-12-05 | 2019-12-05 | Device for assembling check ring for hole and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236241.5A CN110919588A (en) | 2019-12-05 | 2019-12-05 | Device for assembling check ring for hole and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110919588A true CN110919588A (en) | 2020-03-27 |
Family
ID=69857293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911236241.5A Pending CN110919588A (en) | 2019-12-05 | 2019-12-05 | Device for assembling check ring for hole and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110919588A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2461003A1 (en) * | 1974-12-21 | 1976-07-01 | Weisenburger A | DEVICE FOR SPREADING SPRINGS OR PISTON RINGS OR THE SAME |
| CN202742333U (en) * | 2012-08-22 | 2013-02-20 | 浙江科力车辆控制系统有限公司 | Hand shank vertical compression type tool capable of assembling opening retaining ring |
| CN104985561A (en) * | 2015-05-13 | 2015-10-21 | 南车二七车辆有限公司 | Elastic collar mounting device |
| DE202015007091U1 (en) * | 2015-10-10 | 2015-11-03 | Klann-Spezial-Werkzeugbau Gmbh | After the manner of a spreader tine trained hand tool |
| CN204819330U (en) * | 2015-08-12 | 2015-12-02 | 南车贵阳车辆有限公司 | Disconnected ear retaining ring remove device of ware pull rod is transferred to floodgate |
-
2019
- 2019-12-05 CN CN201911236241.5A patent/CN110919588A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2461003A1 (en) * | 1974-12-21 | 1976-07-01 | Weisenburger A | DEVICE FOR SPREADING SPRINGS OR PISTON RINGS OR THE SAME |
| CN202742333U (en) * | 2012-08-22 | 2013-02-20 | 浙江科力车辆控制系统有限公司 | Hand shank vertical compression type tool capable of assembling opening retaining ring |
| CN104985561A (en) * | 2015-05-13 | 2015-10-21 | 南车二七车辆有限公司 | Elastic collar mounting device |
| CN204819330U (en) * | 2015-08-12 | 2015-12-02 | 南车贵阳车辆有限公司 | Disconnected ear retaining ring remove device of ware pull rod is transferred to floodgate |
| DE202015007091U1 (en) * | 2015-10-10 | 2015-11-03 | Klann-Spezial-Werkzeugbau Gmbh | After the manner of a spreader tine trained hand tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107363779B (en) | The attaching/detaching apparatus of aero-engine high pressure joint rotor | |
| CN110080534A (en) | A kind of device that is spirally connected for building iron and connection sleeve | |
| CN104264997A (en) | Novel steel bar connection device | |
| CN206509975U (en) | A kind of flexible card ferrule sleeve extracting tool | |
| CN201009212Y (en) | Device capable of being installed and discharged on the shaft member | |
| CN110919588A (en) | Device for assembling check ring for hole and using method thereof | |
| CN203853953U (en) | Dismounting tool for all-glass vacuum solar heat collecting tube | |
| CN108714874A (en) | A kind of small space Split sleeve combination unit and operating method | |
| CN208870945U (en) | One kind is easy for installation and removal formula shaft coupling | |
| CN210412686U (en) | Device for drilling high altitude on support hanger | |
| CN206065793U (en) | Robot welding positioner | |
| CN110080533A (en) | Attachment device and connection method of the electrodynamic type for building iron, connection sleeve | |
| CN103831620B (en) | A kind of device for tightening fastener parts, tighten assembly and sleeve connection frock | |
| CN205703937U (en) | A kind of electric screwdriver device | |
| CN210153078U (en) | Flexible rod transmission structure of screw pump | |
| CN208214140U (en) | Device for dotting | |
| CN220234342U (en) | Explosion-proof vibrating motor | |
| CN209335489U (en) | A kind of general fixed crankshaft tool | |
| CN204893782U (en) | Nut assembly and disassembly tools | |
| CN219562942U (en) | Gear box disassembling tool | |
| CN205290838U (en) | Half automatic assembly of hose machine | |
| CN110497125A (en) | A kind of dovetail section formula flange abutting joint device | |
| CN216030572U (en) | Bush dismounting device suitable for aircraft maintenance | |
| CN204041944U (en) | With the driving-shaft assembly of loosing and tightening structure safely and fast | |
| CN210896085U (en) | Demonstration panel that international economy and trade were used |
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 |
Application publication date: 20200327 |
|
| RJ01 | Rejection of invention patent application after publication |