CN217486549U - Underground visual maintenance monitoring device - Google Patents
Underground visual maintenance monitoring device Download PDFInfo
- Publication number
- CN217486549U CN217486549U CN202221128062.7U CN202221128062U CN217486549U CN 217486549 U CN217486549 U CN 217486549U CN 202221128062 U CN202221128062 U CN 202221128062U CN 217486549 U CN217486549 U CN 217486549U
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- rod
- rotating pipe
- rack
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 24
- 230000000007 visual effect Effects 0.000 title claims abstract description 19
- 238000012423 maintenance Methods 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 15
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 15
- 239000012466 permeate Substances 0.000 abstract 1
- 238000011179 visual inspection Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a visual maintenance monitoring device in pit, which comprises a bottom plate, a device main body and a monitoring camera, wherein two shaft levers penetrate through two sides below the bottom plate, rollers are arranged at two ends of the shaft levers, the device main body is arranged on the bottom plate, a rotating pipe is rotatably connected in the middle of the upper surface of the device main body, an installation rod penetrates out of the rotating pipe, a limit strip is arranged on the installation rod and is inserted into a limit groove arranged on the inner wall of the rotating pipe, a protection cylinder is rotatably arranged on the device main body, when the device is pushed to move, the monitoring camera can be inserted into the protection cylinder to protect the monitoring camera, and the inner wall of the protection cylinder is provided with a cleaning cotton, the inner cavity of the inner wall of the protection cylinder is communicated with a liquid storage cylinder through a communicating pipe, when the protection cylinder is rotated, the cleaning cotton which can drive cleaning liquid to permeate into the monitoring camera to clean the monitoring camera, the monitoring quality is improved.
Description
Technical Field
The application relates to the technical field of mining equipment, in particular to a visual overhauling and monitoring device for an underground well.
Background
Because of the development and utilization of a large amount of mineral resources, the available resource amount is continuously reduced, the original mining taste is gradually reduced, the quality requirements of subsequent processing such as smelting and the like on mineral separation products are increasingly improved, meanwhile, the environmental awareness of human beings is increasingly strengthened, the reality provides higher and higher requirements for mineral separation equipment, the mine equipment is promoted to be continuously developed towards a larger, more excellent, efficient and energy-saving direction, and a visual maintenance monitoring device is used during underground maintenance and monitoring;
in the underground visual overhaul monitoring device in the prior art, a camera on a device bracket can record video of an overhaul area including personnel operation behaviors and overhaul personnel conditions, and a video image acquired by the camera is sent to an explosion-proof monitor and transmitted to an external monitoring room through a wireless base station, so that the operation behaviors and wearing protection conditions of the overhaul personnel are known, and an overhaul monitoring function is realized;
however, in the actual process, since a large amount of dust is contained in the air during the downhole operation, when the dust is accumulated on the monitoring camera, the quality of the recorded image is reduced, and when the monitoring device is moved, the camera is easily damaged when being accidentally collided by the outside, and thus, the improvement is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems provided in the background art, the application provides a visual overhaul monitoring device in a well.
The application provides a visual monitoring device that overhauls in pit adopts following technical scheme:
a downhole visual maintenance monitoring device comprises a bottom plate, a device main body and a monitoring camera, wherein two shaft levers penetrate through two sides of the lower portion of the bottom plate, rollers are arranged at two ends of the shaft levers, the device main body is installed on the bottom plate, a rotating pipe is rotatably connected to the middle of the upper surface of the device main body, an installation rod penetrates through the rotating pipe, a limiting strip is arranged on the installation rod and inserted into a limiting groove formed in the inner wall of the rotating pipe, the monitoring camera is installed at one end of the installation rod, a protection cylinder is rotatably arranged at the edge of the upper surface of the device main body, wiping cotton is arranged on the inner wall of the protection cylinder, an inner cavity is formed in the inner wall of the protection cylinder, a liquid outlet hole is formed in the inner wall of one side of the inner cavity, a liquid storage cylinder is arranged above the outer wall of the protection cylinder, and a communicating pipe is connected to the bottom end of the liquid storage cylinder, one end of the communicating pipe is communicated with the inner cavity.
Preferably, an extension rod penetrates through the top end of the liquid storage cylinder, a plug head is arranged at one end, inserted into a liquid outlet hole in the lower wall of the liquid storage cylinder, of the extension rod, a raised line is arranged at the other end, close to the extension rod, of the device main body, a fixing sleeve is sleeved on the extension rod, and a first spring is communicated between the fixing sleeve and the liquid storage cylinder.
Preferably, the second spout has been seted up in the side department of device main part, it is provided with the second slider to slide in the second spout, it has the guide bar to pass on the second slider, the both ends of guide bar are connected on the both sides cell wall of second spout, be connected with the second spring between the cell wall of one side of second slider and second spout, be provided with first montant on the second slider, the top department of first montant is connected with first rack, the bottom department cover of protection section of thick bamboo has the gear, the meshing is connected between tooth and the gear on the first rack.
Preferably, a second vertical rod is inserted into the bottom end of the first vertical rod, a second rack is connected to the bottom end of the second vertical rod, the second rack is located right above the end of one of the shafts, a fixed disc is sleeved on the shaft, and teeth on the side face of the fixed disc are meshed with teeth on the second rack.
Preferably, the bottom end of the first vertical rod is rotatably provided with a threaded rod in a penetrating mode, the top end of the second vertical rod is provided with a fixed block, and the threaded rod penetrates through a threaded hole in the fixed block.
Preferably, the outer wall of the rotating pipe is provided with threads, and a propping sleeve is sleeved on the rotating pipe close to the bottom end.
Preferably, be provided with two splint in the commentaries on classics pipe, two all be provided with on the side that splint kept away from each other and promote the piece, set up the opening that supplies to promote the piece and pass on the pipe wall of commentaries on classics pipe.
Preferably, a first sliding groove is formed in the position, below the opening, of the outer wall of the rotating pipe, a first sliding block is arranged in the first sliding groove in a sliding mode, an extrusion block is arranged on the first sliding block, the bottom end of the extrusion block is rotatably connected to a threaded sleeve, and the threaded sleeve is arranged on the rotating pipe in a sleeved mode.
To sum up, the application comprises the following beneficial technical effects:
1. the utility model is provided with a protection cylinder which can rotate on the device main body, when the device is pushed to move, the monitoring camera can be inserted into the protection cylinder to protect the monitoring camera, and the inner wall of the protection cylinder is provided with the wiping cotton;
2. the bottom end of the protection cylinder is sleeved with a gear, the top end of a first vertical rod on the side surface of the device main body is provided with a first rack, the bottom end of a second vertical rod on the first vertical rod is provided with a second rack, teeth on the second rack are meshed and connected with teeth on a fixed disk on the shaft rod, when the device is pushed to move, the protection cylinder is automatically driven to rotate back and forth on the device main body, and then the cleaning function of the monitoring camera is automatically realized;
3. the device main part is gone up to rotate and is connected with the rotating pipe, has passed the installation pole in the rotating pipe, when rotating the rotating pipe, can adjust the monitoring position of surveillance camera head according to actual conditions's needs, utilizes reciprocating of installation pole in the rotating pipe, can adjust the control height according to actual conditions's needs, uses convenience more.
Drawings
FIG. 1 is a schematic structural diagram of a visual inspection and repair monitoring device in a well in an embodiment of the application;
FIG. 2 is an enlarged view of a structure A in FIG. 1 of a visual inspection and repair monitoring device for a well in an embodiment of the present application;
FIG. 3 is an enlarged view of a structure B in FIG. 1 of a visual inspection and monitoring device for downhole in an embodiment of the present application;
FIG. 4 is a structural section view of a protection barrel of a visual inspection and monitoring device in a well in the embodiment of the application;
FIG. 5 is a structural section view of a rotating pipe of a visual inspection and repair monitoring device in the embodiment of the application;
FIG. 6 is an enlarged view of a structure at C in FIG. 1 of a visual inspection and repair monitoring device for a downhole in an embodiment of the present application;
fig. 7 is an enlarged view of a structure at D in fig. 1 of a visual inspection and repair monitoring device for a downhole in an embodiment of the present application.
Description of the reference numerals: 1. a base plate; 2. a device main body; 3. monitoring the camera; 4. a protective barrel; 5. mounting a rod; 6. rotating the pipe; 7. a roller; 8. a limiting strip; 9. a gear; 10. a first rack; 11. a first vertical bar; 12. wiping cotton; 13. a liquid storage cylinder; 14. a communicating pipe; 15. an extension bar; 16. a convex strip; 17. fixing a sleeve; 18. a first spring; 19. abutting the sleeve; 20. a pushing block; 21. an opening; 22. extruding the block; 23. a first chute; 24. a first slider; 25. a threaded sleeve; 26. a splint; 27. an inner cavity; 28. a plug head; 29. a second vertical bar; 30. a second slider; 31. a second chute; 32. a guide rod; 33. a second spring; 34. a threaded rod; 35. a fixed block; 36. a shaft lever; 37. fixing the disc; 38. a second rack.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses visual maintenance monitoring device in pit. Referring to fig. 1-7, a visual inspection and monitoring device in a well, comprising a bottom plate 1, a device body 2 and a monitoring camera 3, wherein two shaft levers 36 are passed through two sides of the bottom plate 1, rollers 7 are arranged at two ends of the shaft levers 36, the device body 2 is arranged on the bottom plate 1, a rotating pipe 6 is rotatably connected with the middle of the upper surface of the device body 2, an installation rod 5 is movably penetrated through the inside of the rotating pipe 6, a limit strip 8 is arranged on the installation rod 5, the limit strip 8 is movably inserted into a limit groove arranged on the inner wall of the rotating pipe 6, the monitoring camera 3 is arranged at one end of the installation rod 5, a protection cylinder 4 is rotatably arranged at the corner of the upper surface of the device body 2, wiping cotton 12 is arranged on the inner wall of the protection cylinder 4, an inner cavity 27 is arranged on the inner wall of the protection cylinder 4, a liquid outlet is arranged on the inner wall at one side of the inner cavity 27, a liquid storage cylinder 13 is arranged above the outer wall of the protection cylinder 4, the bottom of the liquid storage cylinder 13 is connected with a communicating pipe 14, one end of the communicating pipe 14 is communicated with an inner cavity 27, when the device is moved, the mounting rod 5 can move downwards in the rotating pipe 6, the monitoring camera 3 is driven to be inserted into the protective cylinder 4, the monitoring camera 3 can be protected in the moving process, when the protective cylinder 4 is rotated on the device main body 2, the wiping cotton 12 on the inner wall of the protective cylinder 4 can be driven to clean the dust accumulated on the monitoring camera 3, the cleaning liquid in the liquid storage cylinder 13 is led into the inner cavity 27 from the communicating pipe 14, the cleaning liquid flows into the wiping cotton 12 from the liquid outlet hole on the inner cavity 27, the monitoring camera 3 is cleaned by the wiping cotton 12 soaked with the cleaning liquid, the cleaning liquid is cleaner, the top end of the liquid storage cylinder 13 movably penetrates through an extension rod 15, one end of the liquid outlet hole on the lower wall of the extension rod 15 is provided with a plug 28, the other end of the device main body 2, which is close to the extension rod 15, the plug is provided with a raised strip 16, the fixed cover that has fixed cover 17 on the extension bar 15, the intercommunication has first spring 18 between fixed cover 17 and the liquid storage barrel 13, when rotating protection barrel 4 on device main part 2, drive extension bar 15 and rotate, when the one end of extension bar 15 rotates to on the sand grip 16, see through extension bar 15 and take away in cock 28 follow liquid storage barrel 13 lower wall liquid outlet, automatic washing liquid that adds in cavity 27 inwards, when breaking away from between the one end of extension bar 15 and the sand grip 16, utilize the pulling force of first spring 18, see through fixed cover 17 can drive cock 28 again and inject in the liquid outlet of liquid storage barrel 13 lower wall, automatically block up liquid outlet, the reasonable washing liquid that utilizes, waste is reduced.
Referring to fig. 1, 6 and 7, a second sliding slot 31 is formed at a side of the device main body 2, a second slider 30 is slidably disposed in the second sliding slot 31, a guide rod 32 penetrates through the second slider 30, two ends of the guide rod 32 are connected to two side slot walls of the second sliding slot 31, a second spring 33 is connected between the second slider 30 and one side slot wall of the second sliding slot 31, a first vertical rod 11 is disposed on the second slider 30, a first rack 10 is connected to a top end of the first vertical rod 11, a gear 9 is sleeved at a bottom end of the protection cylinder 4, a tooth on the first rack 10 is engaged with the gear 9, when the first vertical rod 11 moves back and forth on the device main body 2, the protection cylinder 4 can be driven to rotate back and forth on the device main body 2 through the first rack 10 and the gear 9, the monitoring camera is cleaned by inserting the vertical rod 3, a second rack 29 is disposed at the bottom end of the first vertical rod 11, a second rack 38 is connected to the bottom end of the second vertical rod 29, the second rack 38 is located right above the end of one of the shaft rods 36, the shaft rod 36 is sleeved with a fixed disk 37, teeth on the side surface of the fixed disk 37 are meshed with teeth on the second rack 38, the bottom end of the first vertical rod 11 is rotatably connected with a threaded rod 34 in a penetrating mode, the top end of the second vertical rod 29 is provided with a fixed block 35, the threaded rod 34 penetrates through a threaded hole in the fixed block 35, when the device moves, the shaft rod 36 and the roller 7 integrally rotate, the second vertical rod 29 is driven to move back and forth through the fixed disk 37, and then when the device moves, cleaning work can be automatically carried out on the monitoring camera 3.
Referring to fig. 1, 3 and 5, the outer wall of the rotating tube 6 is provided with threads, the rotating tube 6 is sleeved with a supporting sleeve 19 near the bottom end, the position of the monitoring camera 3 can be adjusted according to the actual situation by utilizing the rotation of the rotating tube 6 on the device main body 2, after adjustment, the supporting sleeve 19 can be rotated downwards on the rotating tube 6 to the device main body 2, the rotating tube 6 is fixed on the device main body 2 by utilizing the static friction generated between the supporting sleeve 19 and the device main body 2, two clamping plates 26 are arranged in the rotating tube 6, pushing blocks 20 are arranged on the side surfaces, far away from each other, of the two clamping plates 26, an opening 21 for the pushing block 20 to pass through is arranged on the tube wall of the rotating tube 6, when the mounting rod 5 moves up and down on the rotating tube 6, the height of the monitoring camera 3 can be flexibly adjusted according to the actual situation, the moving block 20 in the opening 21 can drive the clamping plates 26 to be tightly clamped to the mounting rod 5, fix installation pole 5 on the rotary pipe 6, first spout 23 has been seted up to the position that the outer wall of rotary pipe 6 is in opening 21 below, it is provided with first slider 24 to slide in the first spout 23, be provided with extrusion block 22 on the first slider 24, rotatable the connection in thread bush 25 in extrusion block 22's bottom, thread bush 25 cover is established on rotary pipe 6, when upwards rotating thread bush 25 on rotary pipe 6, thread bush 25 is promoting extrusion block 22 and is moving upwards, extrusion block 22 is promoting to promote piece 20 and is driving splint 26 and remove in opening 21, press from both sides fastening fixed installation pole 5 in rotary pipe 6, and is simple in operation, and is convenient.
The implementation principle of the underground visual overhaul monitoring device in the embodiment of the application is as follows: firstly, when the device needs to be moved, firstly, the threaded sleeve 25 is rotated downwards on the rotating pipe 6 to drive the extrusion block 22 to move downwards, the two clamping plates 26 are loosened on the mounting rod 5, then the abutting sleeve 19 is rotated upwards on the rotating pipe 6, the abutting sleeve 19 is separated from the device main body 2, the rotating pipe 6 is rotated to rotate the monitoring camera 3 to be right above the protecting cylinder 4, the mounting rod 5 is moved downwards in the rotating pipe 6 to drive the monitoring camera 3 to be inserted into the protecting cylinder 4, the protecting cylinder 4 is utilized to play a role of protecting the monitoring camera 3, then the device can be pushed to move, when dust on the monitoring camera 3 needs to be cleaned, firstly, the threaded rod 34 can be rotated on the first vertical rod 11, the second rack 38 at the bottom end of the second vertical rod 29 is driven to move to the position of the fixed disk 37 through the fixed block 35, so that the fixed disk 37 is driven to rotate by the roller 7 when the roller is rotated, the second vertical rod 29, the first vertical rod 11 and the first rack 10 are pushed to move through the second rack 38, and the second rack 10 can be driven to rotate by the aid of the tension of the second spring 33, so that the first rack 10 can drive the gear 9 to rotate back and forth, the protection barrel 4 can be driven to rotate back and forth on the device main body 2, the cleaning cotton 12 on the device main body 2 cleans the monitoring camera 3, cleaning liquid in the liquid storage barrel 13 can be introduced into the inner cavity 27 during cleaning, the monitoring camera 3 is cleaned by the cleaning cotton 12 soaked with the cleaning liquid, and the cleaning of the monitoring camera 3 is cleaner.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a visual maintenance monitoring device in pit, includes bottom plate (1), device main part (2) and surveillance camera head (3), its characterized in that: two shaft levers (36) penetrate through two sides of the lower portion of the bottom plate (1), rollers (7) are arranged at two ends of each shaft lever (36), the device body (2) is installed on the bottom plate (1), a rotating pipe (6) is rotatably connected to the middle of the upper surface of the device body (2), an installation rod (5) penetrates through the rotating pipe (6), a limiting strip (8) is arranged on the installation rod (5), the limiting strip (8) is inserted into a limiting groove formed in the inner wall of the rotating pipe (6), the monitoring camera (3) is installed at one end of the installation rod (5), a protective barrel (4) is rotatably arranged at the corner of the upper surface of the device body (2), wiping cotton (12) is arranged on the inner wall of the protective barrel (4), an inner cavity (27) is formed in the inner wall of the protective barrel (4), a liquid outlet hole is formed in the inner wall of one side of the inner cavity (27), the upper portion department of protection section of thick bamboo (4) outer wall is provided with liquid storage cylinder (13), the bottom of liquid storage cylinder (13) is connected with communicating pipe (14), the one end and the inner chamber (27) intercommunication of communicating pipe (14).
2. A visual service monitoring apparatus downhole as claimed in claim 1 wherein: an extension rod (15) penetrates through the top end of the liquid storage cylinder (13), a plug head (28) is arranged at one end, inserted into a liquid outlet hole in the lower wall of the liquid storage cylinder (13), of the extension rod (15), a protruding strip (16) is arranged at the other end, close to the extension rod (15), of the upper face of the device main body (2), a fixing sleeve (17) is sleeved on the extension rod (15), and a first spring (18) is communicated between the fixing sleeve (17) and the liquid storage cylinder (13).
3. The visual overhaul monitoring device in the well according to claim 1, wherein: second spout (31) have been seted up in the side department of device main part (2), it is provided with second slider (30) to slide in second spout (31), it has guide bar (32) to pass on second slider (30), the both ends of guide bar (32) are connected on the both sides cell wall of second spout (31), be connected with second spring (33) between one side cell wall of second slider (30) and second spout (31), be provided with first montant (11) on second slider (30), the top department of first montant (11) is connected with first rack (10), the bottom department cover of protection section of thick bamboo (4) has gear (9), tooth and gear (9) are gone up in first rack (10) are connected in the meshing.
4. A visual service monitoring apparatus downhole as claimed in claim 3 wherein: the bottom department of first montant (11) injects there is second montant (29), the bottom department of second montant (29) is connected with second rack (38), second rack (38) are in directly over one of them axostylus axostyle (36) tip, the cover has fixed disk (37) on axostylus axostyle (36), the tooth meshing is connected on tooth and the second rack (38) of fixed disk (37) side.
5. A visual overhaul monitoring device down hole according to claim 4, wherein: the bottom of the first vertical rod (11) is rotatably provided with a threaded rod (34) in a penetrating mode, the top of the second vertical rod (29) is provided with a fixed block (35), and the threaded rod (34) penetrates through a threaded hole in the fixed block (35).
6. A visual service monitoring apparatus downhole as claimed in claim 1 wherein: the outer wall of the rotating pipe (6) is provided with threads, and a propping sleeve (19) is sleeved on the rotating pipe (6) close to the bottom end.
7. A visual overhaul monitoring device down hole according to claim 6 wherein: the improved rotary pipe is characterized in that two clamping plates (26) are arranged in the rotary pipe (6), a pushing block (20) is arranged on one side face, far away from each other, of the clamping plates (26), and an opening (21) for the pushing block (20) to penetrate is formed in the pipe wall of the rotary pipe (6).
8. A visual service monitoring apparatus downhole as claimed in claim 7 wherein: the outer wall of the rotating pipe (6) is located below the opening (21) and is provided with a first sliding groove (23), a first sliding block (24) is arranged in the first sliding groove (23) in a sliding mode, an extrusion block (22) is arranged on the first sliding block (24), the bottom end of the extrusion block (22) is rotatably connected to a threaded sleeve (25), and the threaded sleeve (25) is sleeved on the rotating pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221128062.7U CN217486549U (en) | 2022-05-12 | 2022-05-12 | Underground visual maintenance monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221128062.7U CN217486549U (en) | 2022-05-12 | 2022-05-12 | Underground visual maintenance monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217486549U true CN217486549U (en) | 2022-09-23 |
Family
ID=83311320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221128062.7U Expired - Fee Related CN217486549U (en) | 2022-05-12 | 2022-05-12 | Underground visual maintenance monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217486549U (en) |
-
2022
- 2022-05-12 CN CN202221128062.7U patent/CN217486549U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220923 |