CN215919604U - Cooling device for production and processing of assembly pulling claw - Google Patents
Cooling device for production and processing of assembly pulling claw Download PDFInfo
- Publication number
- CN215919604U CN215919604U CN202023311295.4U CN202023311295U CN215919604U CN 215919604 U CN215919604 U CN 215919604U CN 202023311295 U CN202023311295 U CN 202023311295U CN 215919604 U CN215919604 U CN 215919604U
- Authority
- CN
- China
- Prior art keywords
- wall
- rod
- cooling device
- block
- claw
- 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.)
- Expired - Fee Related
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 74
- 244000309464 bull Species 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims 5
- 239000000110 cooling liquid Substances 0.000 description 22
- 238000001035 drying Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses a cooling device for production and processing of an assembled pulling claw, which relates to the technical field of pulling claw processing equipment, wherein a servo motor is connected with the inner wall of the upper side of a first telescopic block, a rotating rod is connected inside the servo motor, the outer wall of the rotating rod is provided with external threads, the outer wall of the external threads is meshed with a connecting block, the right side of the connecting block is connected with a first connecting shaft, the outer wall of the first connecting shaft is movably connected with a connecting rod, the outer wall of the connecting rod is connected with a rod sleeve in a fitting manner, the bottom of the rod sleeve is connected with a second connecting shaft, when clamping and pulling claws are required, the rotating rod is driven to rotate only by starting the servo motor, the connecting block meshed with the external threads of the rotating rod can move up and down, the connecting block drives the connecting rod to move up, the connecting rod drives the rod sleeve to rotate, the rod sleeve drives a clamping block to clamp tightly and pull the claws due to the limitation of the second connecting shaft, and the design of a limiting block can effectively avoid the connecting block from falling down, the device achieves the purposes of stable clamping and simple operation.
Description
Technical Field
The utility model relates to the technical field of claw-pulling processing equipment, in particular to a cooling device for production and processing of an assembled claw-pulling.
Background
For pulling out the grab, the accessory often need carry out high temperature treatment in the course of working, perhaps the accessory is because of receiving mechanical action force such as frictional force, and the heat production is great, consequently, in time carries out cooling to the accessory, is vital to keeping the mechanical properties of accessory.
Above-mentioned cooling device for equipment claw production and processing has weak point a bit, and 1, the cooling device for the equipment claw production and processing on the present market adopts the electric cylinder to press from both sides to get, and such mode of pressing from both sides is got and is probably caused two clamp splice clamps to get asynchronous, leads to pulling out to grab and drops. 2. At present, most of cooling devices are used for assembling and pulling claw production and machining in the market, and after cooling liquid is injected into the cooling devices and is used for a long time, the temperature of the cooling liquid rises, and the pulling and grabbing cooling effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cooling device for production and processing of an assembled pulling claw, which aims to solve the problem that most of the cooling devices in the prior art are clamped by an electric cylinder, and the clamping mode possibly causes asynchronous clamping of two clamping blocks, so that the pulling claw falls off.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an equipment claw is cooling device for production and processing, includes first flexible piece, first flexible piece upside inner wall connection has servo motor, servo motor internal connection has the bull stick, the bull stick outer wall is equipped with the external screw thread, the meshing of external screw thread outer wall has the connecting block, the connecting block right side is connected with first connecting axle, first connecting axle outer wall swing joint has the connecting rod, the laminating of connecting rod outer wall is connected with the rod cover, the rod cover bottom is connected with the second connecting axle, second connecting axle outer wall connection has the clamp splice, bull stick bottom outer wall connection has the stopper.
Preferably, first flexible piece outer wall connection has first electric jar, first electric jar left side outer wall connection has the bracing piece, the bracing piece bottom is connected with the motor, the inside swing arm outer wall connection of motor has the pulley, pulley outer wall laminating is connected with the slide rail, slide rail outer wall connection has first casing, has first electric jar through first flexible piece outer wall connection, and first electric jar left side outer wall connection has the bracing piece, and the bracing piece bottom is connected with the motor, and the inside swing arm outer wall connection of motor has the pulley, and pulley outer wall laminating is connected with the slide rail, and slide rail outer wall connection has first casing, when needs remove the claw position of pulling out, only need control motor drive pulley and control about on the slide rail, when needs will pull out the claw and put into the water tank cooling, only need control first electric jar and drive first flexible piece and move down, can accomplish the purpose of putting into the water tank with pulling out the claw.
Preferably, first shells inner wall left side is connected with the heater, the heater right side is connected with the pipeline, pipeline outer wall is connected with the fan, is connected with the heater through first shells inner wall left side, and the heater right side is connected with the pipeline, and pipeline outer wall is connected with the fan, and after the claw cooling is good, the moisture on surface can be through the steam after the heater heating weathers through the fan on pipeline surface, reaches and avoids the rusty purpose of claw pulling.
Preferably, the inner wall of the lower side of the first shell is connected with a water pump, the left side of the water pump is connected with a water inlet, the right side of the water pump is provided with a water tank, the outer wall of the right side of the water tank is connected with a circulating pipeline, the inner wall of the lower side of the first shell is connected with the water pump, the left side of the water pump is connected with the water inlet, the right side of the water pump is provided with the water tank, the outer wall of the right side of the water tank is connected with the circulating pipeline, a user pours cooling liquid into the water inlet from the water inlet, the cooling liquid is input into the water inlet by the water pump, after the claw is cooled in the cooling liquid in the water tank, the cooling liquid enters the water pump again through the circulating pipeline to be cooled and then is input into the water inlet, the purpose of keeping the temperature of the cooling liquid in the water tank to be lower is achieved, and the cooling efficiency is improved.
Preferably, first casing right side is connected with trapezoidal platform, trapezoidal platform right side is connected with the collecting box, collecting box surface connection has the handle, is connected with trapezoidal platform through first casing right side, and trapezoidal platform right side is connected with the collecting box, and collecting box surface connection has the handle, and the claw of pulling out after the cooling and drying can move the position of the trapezoidal platform in right side, loosens the clamp splice, and the claw of pulling out gets into the collecting box through trapezoidal platform, and when collecting full back, the user reaches the purpose of collecting through pulling out the handle.
Preferably, the outer wall of the first shell is connected with a central control panel, the central control panel is connected with the outer wall of the first shell, the central control panel can control a plurality of electrical elements, and a user can conveniently and quickly control the electrical elements.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, a servo motor is connected through the inner wall of the upper side of a first telescopic block, a rotating rod is connected inside the servo motor, the outer wall of the rotating rod is provided with external threads, the outer wall of the external threads is meshed with a connecting block, the right side of the connecting block is connected with a first connecting shaft, the outer wall of the first connecting shaft is movably connected with a connecting rod, the outer wall of the connecting rod is connected with a rod sleeve, the bottom of the rod sleeve is connected with a second connecting shaft, the outer wall of the bottom of the rotating rod is connected with a clamping block, when clamping and pulling the claw are needed, the servo motor is started to drive the rotating rod to rotate, the connecting block meshed with the external threads of the rotating rod can move up and down, the connecting block drives the connecting rod to move up and down, the connecting rod drives the rod sleeve to rotate, the rod sleeve is limited by the second connecting shaft, the rod sleeve drives the clamping block to clamp the claw tightly, the limiting block is designed to effectively prevent the connecting block from falling off, and the device is stable, the operation is simple.
2. According to the utility model, the water pump is connected to the inner wall of the lower side of the first shell, the water inlet is connected to the left side of the water pump, the water tank is arranged on the right side of the water pump, the circulating pipeline is connected to the outer wall of the right side of the water tank, a user pours cooling liquid from the water inlet, the cooling liquid is input into the water tank by the water pump, after the claw is cooled in the cooling liquid in the water tank, the cooling liquid enters the water pump again through the circulating pipeline to be cooled and then is input into the water tank, the purpose of keeping the temperature of the cooling liquid in the water tank low is achieved, and the cooling efficiency is increased.
Drawings
FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a clamping block according to an embodiment of the utility model.
In the figure: 1. a first housing; 2. a slide rail; 3. a pulley; 4. a motor; 5. a support bar; 6. a first electric cylinder; 7. a first telescopic block; 8. a servo motor; 9. a rotating rod; 10. an external thread; 11. connecting blocks; 12. a first connecting shaft; 13. a connecting rod; 14. a rod sleeve; 15. a second connecting shaft; 16. a clamping block; 17. a limiting block; 18. a heater; 19. a pipeline; 20. a fan; 21. a water pump; 22. a water inlet; 23. a water tank; 24. a circulation pipe; 25. a trapezoidal table; 26. a collection box; 27. a handle; 28. and a central control panel.
Detailed Description
In order to solve the problem that the two clamping blocks are not synchronously clamped in a clamping mode to cause the pulling claw to fall off due to the fact that most of the clamping blocks are clamped by an electric cylinder, the embodiment of the utility model provides a cooling device for production and processing of an assembled pulling claw. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, the embodiment provides a cooling device for production and processing of an assembled claw, comprising a first telescopic block 7, a servo motor 8 connected to an upper inner wall of the first telescopic block 7, a rotating rod 9 connected to an inside of the servo motor 8, an external thread 10 provided on an outer wall of the rotating rod 9, a connecting block 11 engaged with an outer wall of the external thread 10, a first connecting shaft 12 connected to a right side of the connecting block 11, a connecting rod 13 movably connected to an outer wall of the first connecting shaft 12, a rod sleeve 14 connected to an outer wall of the connecting rod 13 in a fitting manner, a second connecting shaft 15 connected to a bottom of the rod sleeve 14, a clamping block 16 connected to an outer wall of the second connecting shaft 15, a limiting block 17 connected to an outer wall of a bottom of the rotating rod 9, the servo motor 8 connected to an upper inner wall of the first telescopic block 7, the rotating rod 9 connected to an inside of the servo motor 8, the external thread 10 provided on an outer wall of the rotating rod 9, the connecting block 11 engaged with the connecting block 11, and the first connecting shaft 12 connected to a right side of the connecting block 11, 12 outer wall swing joint of first connecting axle has connecting rod 13, the laminating of connecting rod 13 outer wall is connected with rod cover 14, rod cover 14 bottom is connected with second connecting axle 15, 15 outer wall connections of second connecting axle have clamp splice 16, the outer wall connections of bull stick 9 bottom has stopper 17, when needs clamp are got to pull out and are grabbed, it is rotatory only to need to drive bull stick 9 through starting servo motor 8, connecting block 11 with 9 external screw threads 10 mesh of bull stick, can reciprocate, connecting block 11 drives connecting rod 13 rebound, connecting rod 13 drives rod cover 14 and rotates, rod cover 14 is owing to the restriction of second connecting axle 15, rod cover 14 drives clamp splice 16 and steps up and pulls out and grab, the design of stopper 17 can effectively avoid connecting block 11 to drop, this device reaches to press from both sides and gets stably, easy operation's purpose.
In the embodiment, when in use, a servo motor 8 is connected to the inner wall of the upper side of the first telescopic block 7, a rotating rod 9 is connected inside the servo motor 8, the outer wall of the rotating rod 9 is provided with an external thread 10, the outer wall of the external thread 10 is engaged with a connecting block 11, the right side of the connecting block 11 is connected with a first connecting shaft 12, the outer wall of the first connecting shaft 12 is movably connected with a connecting rod 13, the outer wall of the connecting rod 13 is connected with a rod sleeve 14 in a fitting manner, the bottom of the rod sleeve 14 is connected with a second connecting shaft 15, the outer wall of the second connecting shaft 15 is connected with a clamping block 16, the outer wall of the bottom of the rotating rod 9 is connected with a limiting block 17, when clamping and pulling-out are needed, the servo motor 8 is only started to drive the rotating rod 9 to rotate, the connecting block 11 engaged with the external thread 10 of the rotating rod 9 can move up and down, the connecting block 11 drives the connecting rod 13 to move upwards, the connecting rod sleeve 13 drives the rod sleeve 14 to rotate, and the rod sleeve is limited by the second connecting shaft 15, the rod sleeve 14 drives the clamping block 16 to tighten and pull the claw, the design of the limiting block 17 can effectively prevent the connecting block 11 from falling, the device achieves the purposes of stable clamping and simple operation, the outer wall of the first telescopic block 7 is connected with a first electric cylinder 6, the outer wall of the left side of the first electric cylinder 6 is connected with a supporting rod 5, the bottom of the supporting rod 5 is connected with a motor 4, the outer wall of a rotating rod in the motor 4 is connected with a pulley 3, the outer wall of the pulley 3 is connected with a slide rail 2 in an attaching mode, the outer wall of the slide rail 2 is connected with a first shell 1, when the claw pulling position needs to be moved, the motor 4 is only required to be controlled to drive the pulley 3 to move left and right on the slide rail 2, when the claw needs to be placed into the water tank 23 to be cooled, the purpose of placing the claw into the water tank 23 can be completed by controlling the first electric cylinder 6 to drive the first telescopic block 7 to move downwards, the left side of the inner wall of the first shell 1 is connected with a heater 18, the right side of the heater 18 is connected with a pipeline 19, the outer wall of the pipeline 19 is connected with a fan 20, after the pulling claw is cooled, the moisture on the surface can be dried through the hot air heated by the heater 18 through the fan 20 on the surface of the pipeline 19, so as to achieve the purpose of avoiding the pulling claw from rusting, the inner wall of the lower side of the first shell 1 is connected with a water pump 21, the left side of the water pump 21 is connected with a water inlet 22, the right side of the water pump 21 is provided with a water tank 23, the outer wall of the right side of the water tank 23 is connected with a circulating pipeline 24, a user pours cooling liquid into the water tank 22 through the water pump 21, the cooling liquid is input into the water tank 23 through the circulating pipeline 24, after the pulling claw is cooled in the cooling liquid in the water tank 23, the cooling liquid enters the water pump 21 again through the circulating pipeline 24 to be cooled and then is input into the water tank 23, so as to achieve the purpose of keeping the temperature of the cooling liquid in the water tank 23 low, the cooling efficiency is increased, the right side of the first shell 1 is connected with a trapezoidal platform 25, and the right side of the trapezoidal platform 25 is connected with a collecting box 26, the collecting box 26 surface is connected with handle 27, and the pulling claw after the cooling drying can move to the position of the trapezoidal platform 25 in right side, unclamps clamp splice 16, and the pulling claw passes through trapezoidal platform 25 and gets into collecting box 26, and when collecting full back, the user reaches the purpose of collecting through pulling out handle 27, through being connected with well control panel 28 at first casing 1 outer wall, well control panel 28 can control a plurality of electrical components, and the person of facilitating the use swiftly controls the purpose.
Example 2
Please refer to fig. 1, fig. 2 and fig. 3, which are further improved based on the embodiment 1: the outer wall of a first telescopic block 7 is connected with a first electric cylinder 6, the outer wall of the left side of the first electric cylinder 6 is connected with a support rod 5, the bottom of the support rod 5 is connected with a motor 4, the outer wall of a rotary rod inside the motor 4 is connected with a pulley 3, the outer wall of the pulley 3 is connected with a slide rail 2 in an attaching manner, the outer wall of the slide rail 2 is connected with a first shell 1, the outer wall of the first telescopic block 7 is connected with the first electric cylinder 6, the outer wall of the left side of the first electric cylinder 6 is connected with the support rod 5, the bottom of the support rod 5 is connected with a motor 4, the outer wall of the rotary rod inside the motor 4 is connected with a pulley 3, the outer wall of the pulley 3 is connected with a slide rail 2 in an attaching manner, the outer wall of the slide rail 2 is connected with the first shell 1, when the claw pulling position needs to be moved, the pulley 3 is only required to be controlled to move left and right on the slide rail 2, when the claw needs to be put into a water tank 23 for cooling, the claw only by controlling the first electric cylinder 6 to drive the first telescopic block 7 to move downwards, so as to accomplish the purpose of putting the claw into the water tank 23, the left side of the inner wall of the first shell 1 is connected with a heater 18, the right side of the heater 18 is connected with a pipeline 19, the outer wall of the pipeline 19 is connected with a fan 20, the left side of the inner wall of the first shell 1 is connected with the heater 18, the right side of the heater 18 is connected with the pipeline 19, after the pulling claw is cooled, the surface moisture can be dried by hot air heated by the heater 18 through the fan 20 on the surface of the pipeline 19, so as to achieve the purpose of avoiding the pulling claw from rusting, the inner wall of the lower side of the first shell 1 is connected with a water pump 21, the left side of the water pump 21 is connected with a water inlet 22, the right side of the water pump 21 is provided with a water tank 23, the outer wall of the right side of the water tank 23 is connected with a circulating pipeline 24, a user pours cooling liquid into the water inlet 22, the cooling liquid is input into the water tank 23 by the water pump 21, after the pulling claw is cooled in the cooling liquid of the water tank 23, the cooling liquid enters the water pump 21 again through the circulating pipeline 24 to be cooled and then is input into the water tank 23, the purpose of keeping the temperature of the cooling liquid in the water tank 23 low is achieved, the cooling efficiency is improved, the outer wall of the first shell 1 is connected with the central control panel 28, the central control panel 28 is connected with the outer wall of the first shell 1, a plurality of electrical components can be controlled by the central control panel 28, the purpose of being convenient for a user to control quickly is achieved, the right side of the first shell 1 is connected with the trapezoidal table 25, the right side of the trapezoidal table 25 is connected with the collecting box 26, the surface of the collecting box 26 is connected with the handle 27, the pulling claw after cooling and drying can move to the position of the right trapezoidal table 25, the clamping blocks 16 are released and the fingers pass through the trapezoidal table 25 into a collection bin 26 which, when full, is collected by the user by pulling out the handle 27.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an equipment claw production and processing is with cooling device, includes first flexible piece (7), its characterized in that: first flexible piece (7) upside inner wall connection has servo motor (8), servo motor (8) internal connection has bull stick (9), bull stick (9) outer wall is equipped with external screw thread (10), external screw thread (10) outer wall meshing has connecting block (11), connecting block (11) right side is connected with first connecting axle (12), first connecting axle (12) outer wall swing joint has connecting rod (13), connecting rod (13) outer wall laminating is connected with rod cover (14), rod cover (14) bottom is connected with second connecting axle (15), second connecting axle (15) outer wall connection has clamp splice (16), bull stick (9) bottom outer wall connection has stopper (17).
2. The cooling device for assembly and extraction claw production and processing according to claim 1, wherein: first flexible piece (7) outer wall connection has first electric jar (6), first electric jar (6) left side outer wall connection has bracing piece (5), bracing piece (5) bottom is connected with motor (4), the inside swing arm outer wall connection of motor (4) has pulley (3), pulley (3) outer wall laminating is connected with slide rail (2), slide rail (2) outer wall connection has first casing (1).
3. The cooling device for assembly and extraction claw production and processing according to claim 2, wherein: the left side of the inner wall of the first shell (1) is connected with a heater (18), the right side of the heater (18) is connected with a pipeline (19), and the outer wall of the pipeline (19) is connected with a fan (20).
4. The cooling device for assembly and extraction claw production and processing according to claim 3, wherein: first casing (1) downside inner wall is connected with water pump (21), water pump (21) left side is connected with water inlet (22), water pump (21) right side is equipped with water tank (23), water tank (23) right side outer wall connection has circulating line (24).
5. The cooling device for assembly and extraction claw production and processing according to claim 4, wherein: the right side of the first shell (1) is connected with a trapezoidal table (25), the right side of the trapezoidal table (25) is connected with a collecting box (26), and the surface of the collecting box (26) is connected with a handle (27).
6. The cooling device for assembly and extraction claw production according to claim 5, wherein: the outer wall of the first shell (1) is connected with a central control panel (28).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202023311295.4U CN215919604U (en) | 2020-12-31 | 2020-12-31 | Cooling device for production and processing of assembly pulling claw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202023311295.4U CN215919604U (en) | 2020-12-31 | 2020-12-31 | Cooling device for production and processing of assembly pulling claw |
Publications (1)
Publication Number | Publication Date |
---|---|
CN215919604U true CN215919604U (en) | 2022-03-01 |
Family
ID=80408408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202023311295.4U Expired - Fee Related CN215919604U (en) | 2020-12-31 | 2020-12-31 | Cooling device for production and processing of assembly pulling claw |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN215919604U (en) |
-
2020
- 2020-12-31 CN CN202023311295.4U patent/CN215919604U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN215919604U (en) | Cooling device for production and processing of assembly pulling claw | |
CN109527617A (en) | A kind of fruits and vegetables cleaning equipment | |
CN204438746U (en) | A kind of chemical fibre factory vacuum drying oven | |
CN208174159U (en) | A kind of quick device for peeling of cable wire | |
CN208066824U (en) | A kind of machining eyeglass cleaning drying device | |
CN207139506U (en) | A kind of derusting device for hardware | |
CN115011441A (en) | Biological fungus culture tank support for biological science experiment | |
CN213835247U (en) | Animal oleic acid preparation facilities | |
CN211840490U (en) | Vacuum brazing furnace | |
CN212238543U (en) | Synchronous high-efficient belt cleaning device of clinical laboratory's test tube inside and outside wall | |
CN114711444A (en) | Plastic energy-saving fruit dryer | |
CN212865075U (en) | Boiling device of silkworm cocoon for weaving | |
CN218140761U (en) | Financial affairs official working file storage device | |
CN108670005A (en) | Household juicer convenient to clean | |
CN221254656U (en) | Shaft sleeve heating device | |
CN117548391B (en) | Automatic butyl rubber scraping and glue removing device for solar photovoltaic module | |
CN214674685U (en) | Brushless motor cooling device of household dust collector | |
CN210070623U (en) | Resistance furnace convenient to use | |
CN217110015U (en) | Low-temperature air source heat pump high-temperature hot water device | |
CN219558085U (en) | Tilting type efficient boiling device for traditional Chinese medicine decoction pieces | |
CN214065055U (en) | Superconductive radiation electric heating radiator | |
CN212577865U (en) | Metal welding machine with heat dissipation mechanism | |
CN220805828U (en) | Arc welding fixture with water cooling device | |
CN218183653U (en) | Paster processingequipment | |
CN220987381U (en) | Hot air rotary furnace for snack processing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220301 |
|
CF01 | Termination of patent right due to non-payment of annual fee |