CN214558302U - Easy maintenance's optic fibre laser marking machine - Google Patents

Easy maintenance's optic fibre laser marking machine Download PDF

Info

Publication number
CN214558302U
CN214558302U CN202120614618.2U CN202120614618U CN214558302U CN 214558302 U CN214558302 U CN 214558302U CN 202120614618 U CN202120614618 U CN 202120614618U CN 214558302 U CN214558302 U CN 214558302U
Authority
CN
China
Prior art keywords
block
wall
support frame
movably connected
cabinet door
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
Application number
CN202120614618.2U
Other languages
Chinese (zh)
Inventor
蒋星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Tianxie Tianyu Laser Marking Co ltd
Original Assignee
Wuhan Tianxie Tianyu Laser Marking Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Tianxie Tianyu Laser Marking Co ltd filed Critical Wuhan Tianxie Tianyu Laser Marking Co ltd
Priority to CN202120614618.2U priority Critical patent/CN214558302U/en
Application granted granted Critical
Publication of CN214558302U publication Critical patent/CN214558302U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Securing Of Glass Panes Or The Like (AREA)

Abstract

The utility model relates to the technical field of marking machines, and discloses a conveniently maintained fiber laser marking machine, which comprises a supporting frame, wherein the inner wall of the supporting frame is movably connected with a cabinet door, the bottom of the cabinet door is fixedly provided with a first clamping block, the inner wall of the first clamping block is movably connected with a telescopic column, the left side of the telescopic column is fixedly provided with a movable block, the left side of the movable block is movably connected with a fixed block, the left side of the movable block is fixedly provided with a stay cord, the outer wall of the stay cord is movably connected with a winding box, the inner wall of the supporting frame is fixedly provided with a limiting block, the conveniently maintained fiber laser marking machine can pull a drag hook to move when the cabinet door at the bottom of the supporting frame is opened by matching the telescopic column with a spring sheet, so as to pull the stay cord by matching with a guide wheel, thereby pulling the movable block, and the movable block is moved out from the groove of the first clamping block of the cabinet door at the top of the supporting frame, thereby the cabinet doors at the top and the bottom of the supporting frame can be opened.

Description

Easy maintenance's optic fibre laser marking machine
Technical Field
The utility model relates to a marking machine technical field specifically is a easy maintenance's optic fibre laser marking machine.
Background
The marking machine is a reliable and stable marking method for marking permanent marks on the surface of workpieces of different substances or marking different exquisite patterns or trademarks and the like by laser.
In-process at daily use laser marking machine, the time is of a specified duration, bottom machine case advances the condition such as ash very easily and takes place, can lead to laser marking machine's mainframe box to take place the problem, thereby need maintain, but the in-process of maintenance, laser marking machine bottom machine case is fixed inside the box, so the maintenance process need correspond and open different cabinet doors and maintain, if the cabinet door of repairing this part is opened the back, can't repair the box back part, then need the operator to remove to another cabinet door, open again and carry out the synchronous maintenance, such process very delays time, so we have released a easy maintenance's optic fibre laser marking machine, can realize opening the main cabinet door after, the effect that other cabinet doors are opened together, with this makes things convenient for the operator to maintain.
SUMMERY OF THE UTILITY MODEL
For realize above-mentioned back of opening main cabinet door, the purpose that other cabinet doors were opened together, the utility model provides a following technical scheme: an optical fiber laser marking machine convenient to maintain comprises a support frame, wherein a cabinet door is movably connected to the inner wall of the support frame, a first clamping block is fixedly mounted at the bottom end of the cabinet door, a telescopic column is movably connected to the inner wall of the first clamping block, a moving block is fixedly mounted on the left side of the telescopic column, a fixed block is movably connected to the left side of the moving block, a pull rope is fixedly mounted on the left side of the moving block, a winding box is movably connected to the outer wall of the pull rope, a limiting block is fixedly mounted on the inner wall of the support frame, inner teeth are movably connected to the inner wall of the limiting block, a toothed plate is movably connected to the outer wall of the inner teeth, a top block is fixedly mounted at one end of the toothed plate, far away from the inner teeth, a spring is fixedly mounted at the bottom end of the top block, a second clamping block is movably connected to the outer wall of the top block, a guide wheel is wound on the pull rope, and a movable rod is fixedly mounted at the front of the pull rope, one end of the pull rope far away from the telescopic column is fixedly provided with a drag hook.
As the optimization, the wire winding box is located the back of fixed block, and wire winding box and fixed block are located same vertical center line, the quantity of cabinet door is four, and four cabinet doors all use the central point location center evenly distributed of support frame, and the quantity of first fixture block is two, and two first fixture blocks all use the horizontal center line symmetric distribution of support frame, the back of the body one side of mutually all with cabinet door fixed connection of two first fixture blocks, and be located the outer wall and the drag hook swing joint of the first fixture block of support frame below, make at the in-process of stay cord at the pulling, can make the stay cord in the wire winding box shift out the wire winding box, remove with this drive movable rod.
As optimization, the fixed block is movably connected with the moving block through the elastic piece, the number of the second clamping blocks is two, the two second clamping blocks are symmetrically distributed on the vertical center line of the supporting frame, and the two second clamping blocks are fixedly connected with the cabinet door on the opposite sides, so that the elastic piece can be squeezed in the moving process of the moving block, and when the pull rope is loosened, the moving block can return to the initial position under the action of the elastic piece.
As the optimization, the outer wall fixed mounting of movable rod has the connecting block, and the outer wall of connecting block and the inner wall swing joint of support frame, and the bottom of support frame is provided with the couple for the movable rod can stably extrude the kicking block at the in-process that removes, and when pulling open the cabinet door of support frame bottom, can pull the drag hook, and open the back with the cabinet door completely, the drag hook colludes mutually with the couple, receives the shell fragment influence to withdraw with this restriction stay cord.
As optimization, the quantity of kicking block is four, and per two kicking blocks are a set of, and two kicking blocks in every kicking block of group all use the horizontal central line symmetric distribution of second fixture block, and the inner wall of kicking block is provided with the through-hole, and the diameter of through-hole is greater than the diameter of pinion rack for two kicking blocks are at the in-process that moves to relative one side, can make the pinion rack get into in the through-hole.
As optimization, the pinion rack is located the back of spring, and the quantity of pinion rack is four, and per two pinion racks are a set of, and two pinion racks in every group pinion rack all use the perpendicular central line symmetric distribution of internal tooth for at the in-process that the kicking block removed, can drive the pinion rack and remove and drive the internal tooth and rotate, thereby drive the pinion rack removal of symmetric distribution, drive another kicking block relative movement with this.
As optimization, the inner wall of second fixture block is provided with the circular slot and erects the groove, and the circular slot runs through the left side of second fixture block and extends to the inner wall of second fixture block, erects the groove and runs through the top of second fixture block and extends to the bottom inner wall of second fixture block, and erects the upper right corner of crossing department of groove and circular slot and be hollow, and the diameter of kicking block is greater than the width of hollow department, the diameter of movable rod is less than the width of hollow department, make after the movable rod extrudees the kicking block, when making the cabinet door be the level form with the bottom of support frame and open, the movable rod can follow hollow department and shift out to this does not influence the cabinet door and opens.
The utility model has the advantages that: this easy maintenance's optic fibre laser marking machine uses through flexible post and shell fragment cooperation for when opening the cabinet door of support frame bottom, can pull the drag hook and remove, thereby cooperation guide pulley pulling stay cord, with this pulling movable block, make the movable block shift out from the recess that is located the first fixture block of the cabinet door at support frame top, thereby the top of support frame and the cabinet door of bottom can be opened.
This easy maintenance's optic fibre laser marking machine, use through the cooperation of second fixture block and movable rod, make the in-process that removes at the stay cord, the stay cord shifts out from the wire winding box, enough remove the vertical slot that drives the movable rod entering second fixture block with the length of this stay cord, with this movable rod extrusion kicking block, make the kicking block remove to the direction that is close to the stopper, and drive the pinion rack and remove, the pinion rack drives the internal tooth and rotates, thereby it removes with the kicking block to drive another pinion rack, with the unable restriction second fixture block of this stopper, thereby the cabinet door that is located the support frame left and right sides receives gravity reason swing to be the level form with the bottom of support frame, thereby open all cabinet doors.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic top sectional view of the supporting frame structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2 according to the present invention;
fig. 5 is a right-view schematic diagram of a second fixture block structure of the present invention;
fig. 6 is a schematic perspective view of a second fixture block structure of the present invention.
In the figure: 1. a support frame; 2. a cabinet door; 3. a first clamping block; 4. a telescopic column; 5. a moving block; 6. a fixed block; 7. pulling a rope; 8. a winding box; 9. a limiting block; 10. internal teeth; 11. a toothed plate; 12. a top block; 13. a spring; 14. a second fixture block; 15. a guide wheel; 16. a movable rod; 17. and (4) pulling a hook.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, a fiber laser marking machine with convenient maintenance comprises a supporting frame 1, a cabinet door 2 is movably connected to the inner wall of the supporting frame 1, a first clamping block 3 is fixedly installed at the bottom end of the cabinet door 2, a telescopic column 4 is movably connected to the inner wall of the first clamping block 3, a moving block 5 is fixedly installed at the left side of the telescopic column 4, a fixed block 6 is movably connected to the left side of the moving block 5, a pull rope 7 is fixedly installed at the left side of the moving block 5, a winding box 8 is movably connected to the outer wall of the pull rope 7, a coil spring is arranged on the inner wall of the winding box 8, the pull rope 7 is movably connected to the outer wall of the coil spring, a limiting block 9 is fixedly installed on the inner wall of the supporting frame 1, inner teeth 10 are movably connected to the inner wall of the limiting block 9, a toothed plate 11 is movably connected to the outer wall of the inner teeth 10, a top block 12 is fixedly installed at one end of the toothed plate 11, far away from the inner teeth 10, and a spring 13 is fixedly installed at the bottom end of the top block 12, the toothed plates 11 are located on the back of the spring 13, the number of the toothed plates 11 is four, every two toothed plates 11 are in one group, two toothed plates 11 in each group of toothed plates 11 are symmetrically distributed by the vertical center line of the internal teeth 10, so that in the moving process of the ejector block 12, the toothed plates 11 can be driven to move to drive the internal teeth 10 to rotate, so as to drive the toothed plates 11 which are symmetrically distributed to move, so as to drive another ejector block 12 to move relatively, so that when one ejector block 12 is moved, another ejector block 12 synchronously moves, so that the ejector block 12 is taken into the inner wall of the limiting block 9, so that the limiting block 9 cannot limit the second fixture block 14, so that the cabinet door 2 can be opened, the outer wall of the ejector block 12 is movably connected with the second fixture blocks 14, the number of the ejector blocks 12 is four, every two ejector blocks 12 are in one group, two ejector blocks 12 in the ejector block 12 are symmetrically distributed by the horizontal center line of the second fixture block 14, and the inner wall of the ejector block 12 is provided with a through hole, and the diameter of the through hole is larger than that of the toothed plate 11, so that in the process that the two top blocks 12 move to opposite sides, the toothed plate 11 can enter the through hole, so that the two top blocks 12 can enter the inner wall of the limiting block 9, the fixed block 6 is movably connected with the moving block 5 through the elastic sheet, the number of the second clamping blocks 14 is two, the two second clamping blocks 14 are symmetrically distributed along the vertical center line of the supporting frame 1, the opposite sides of the two second clamping blocks 14 are fixedly connected with the cabinet door 2, so that the elastic sheet can be pressed in the moving process of the moving block 5, when the pull rope 7 is loosened, the moving block 5 can return to the initial position under the action of the elastic sheet, the inner wall of the second clamping block 14 is provided with a circular groove and a vertical groove, the circular groove penetrates through the left side of the second clamping block 14 and extends to the inner wall of the second clamping block 14, the vertical groove penetrates through the top end of the second clamping block 14 and extends to the inner wall of the bottom end of the second clamping block 14, the upper right corner of the intersection of the vertical groove and the circular groove is hollow, the diameter of the top block 12 is larger than that of the hollow part, the diameter of the movable rod 16 is smaller than that of the hollow part, so that after the movable rod 16 extrudes the top block 12, the cabinet door 2 swings under the action of gravity and the bottom end of the support frame 1 is opened horizontally, the movable rod 16 can move out of the hollow part, the opening of the cabinet door 2 is not influenced, the pull rope 7 is wound with the guide wheel 15, the movable rod 16 is fixedly installed on the front side of the pull rope 7, the winding box 8 is positioned on the back side of the fixed block 6, the winding box 8 and the fixed block 6 are positioned on the same vertical central line, the number of the cabinet doors 2 is four, the four cabinet doors 2 are uniformly distributed by using the central point center of the support frame 1, the number of the first fixture blocks 3 is two, the two first fixture blocks 3 are symmetrically distributed by using the horizontal central line of the support frame 1, one side of the two first fixture blocks 3, which are back to back is fixedly connected with the cabinet door 2, and be located the outer wall and the drag hook 17 swing joint of first fixture block 3 of support frame 1 below, make at stay cord 7 at the in-process of pulling, can make stay cord 7 in the wire winding box 8 shift out wire winding box 8, with this drive movable rod 16 remove, the one end fixed mounting that telescopic column 4 was kept away from to stay cord 7 has drag hook 17, the outer wall fixed mounting of movable rod 16 has the connecting block, and the outer wall of connecting block and the inner wall swing joint of support frame 1, the bottom of support frame 1 is provided with the couple, make movable rod 16 at the in-process that removes, can stably extrude kicking block 12, and when pulling open the cabinet door 2 of support frame 1 bottom, can pull drag hook 17, and open the back with cabinet door 2 completely, drag hook 17 colludes mutually with this restriction stay cord 7 receives the shell fragment influence to withdraw, thereby prevent that drag hook 17 from receiving the inner wall of support frame 1, the condition that can't pick up takes place.
When in use, please refer to fig. 1-6, when the synchronous maintenance is needed, the cabinet door 2 at the bottom of the supporting frame 1 is pulled, the first clamping block 3 at the bottom swings, the pulling rope 7 is pulled through the pulling hook 17, the pulling rope 7 moves under force to drive the winding box 8 to unwind, the movable rod 16 moves under force to enter the second clamping block 14 and press the top block 12, the top block 12 moves towards the inner wall of the limiting block 9, the toothed plate 11 moves towards the inner wall of the limiting block 9 and drives the inner teeth 10 to rotate, the other toothed plate 11 and the top block 12 move towards the opposite side, the two top blocks 12 are put into the inner wall of the limiting block 9, the limiting block 9 cannot limit the second clamping block 14, and the cabinet doors 2 at the left and right sides of the supporting frame 1 swing to be horizontal with the bottom of the supporting frame 1 under gravity, so that the cabinet doors 2 at the left and right sides of the supporting frame 1 are opened, meanwhile, the cabinet door 2 at the bottom end of the supporting frame 1 is continuously opened, the pull rope 7 cannot be limited by the winding box 8, so that the pull rope 7 can pull the moving block 5, the moving block 5 moves out of the groove of the first clamping block 3 at the top end of the support frame 1, so that the cabinet door 2 at the top end of the supporting frame 1 is opened by gravity, all the cabinet doors 2 are opened, then the draw hook 17 is hooked with the hook, thereby the draw rope 7 is limited not to be drawn back by the elastic sheet, after the maintenance is finished, the draw hook 17 is taken down from the hook and hung on the first fixture block 3 of the cabinet door 2 at the bottom end of the support frame 1, then all the cabinet doors 2 are closed in sequence, the moving block 5 returns to the initial position under the action of the elastic sheet, the pulling rope 7 is restricted by the winding box 8 to be wound inside the winding box 8 again, and the top block 12 moves out of the inner wall of the limiting block 9 under the action of the spring 13 and contacts with the inner wall of the second clamping block 14, so that all operations are completed.
In conclusion, the fiber laser marking machine convenient to maintain uses the telescopic column 4 and the elastic sheet in a matching manner, when the cabinet door 2 at the bottom end of the support frame 1 is opened, the draw hook 17 can be pulled to move, so that the pull rope 7 is pulled by the guide wheel 15 in a matching manner, the moving block 5 is pulled, the moving block 5 is moved out of the groove of the first fixture block 3 of the cabinet door 2 at the top end of the support frame 1, so that the cabinet doors 2 at the top and the bottom end of the support frame 1 can be opened, in the moving process of the pull rope 7, the pull rope 7 is moved out of the winding box 8, so that the length of the pull rope 7 is enough to move to drive the moving rod 16 to enter the vertical groove of the second fixture block 14, the moving rod 16 extrudes the top block 12, the top block 12 moves towards the direction close to the limiting block 9, and drives the toothed plate 11 to move, the toothed plate 11 drives the inner teeth 10 to rotate, so as to drive the other toothed plate 11 and the top block 12 to move, so that the limiting block 9 cannot limit the second fixture block 14, thereby the cabinet door 2 that is located the support frame 1 left and right sides receives gravity reason swing to be the horizontality with the bottom of support frame 1 to open all cabinet doors 2.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a easy maintenance's optic fibre laser marking machine, includes support frame (1), its characterized in that: the inner wall of the support frame (1) is movably connected with a cabinet door (2), a first clamping block (3) is fixedly mounted at the bottom of the cabinet door (2), a telescopic column (4) is movably connected with the inner wall of the first clamping block (3), a movable block (5) is fixedly mounted at the left side of the telescopic column (4), a fixed block (6) is movably connected at the left side of the movable block (5), a pull rope (7) is fixedly mounted at the left side of the movable block (5), a winding box (8) is movably connected at the outer wall of the pull rope (7), a limit block (9) is fixedly mounted at the inner wall of the support frame (1), inner teeth (10) are movably connected at the inner wall of the limit block (9), a toothed plate (11) is movably connected at the outer wall of the inner teeth (10), a top block (12) is fixedly mounted at one end, far away from the inner teeth (10), of the toothed plate (11), and a spring (13) is fixedly mounted at the bottom of the top block (12), the outer wall swing joint of kicking block (12) has second fixture block (14), guide pulley (15) have been twined in stay cord (7), stay cord (7) openly fixed mounting has movable rod (16), the one end fixed mounting that telescopic column (4) were kept away from in stay cord (7) has drag hook (17).
2. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: wire winding box (8) are located the back of fixed block (6), and wire winding box (8) are located same vertical center line with fixed block (6), the quantity of cabinet door (2) is four, and four cabinet doors (2) all use the central point position center evenly distributed of support frame (1), and the quantity of first fixture block (3) is two, and two first fixture block (3) all use the horizontal center line symmetric distribution of support frame (1), the back of the body one side of mutually all with cabinet door (2) fixed connection of two first fixture block (3), and the outer wall and drag hook (17) swing joint of the first fixture block (3) that is located support frame (1) below.
3. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: the fixed block (6) is movably connected with the moving block (5) through the elastic sheet, the number of the second clamping blocks (14) is two, the two second clamping blocks (14) are symmetrically distributed with the vertical center line of the support frame (1), and one sides of the two second clamping blocks (14), which are back to back, are fixedly connected with the cabinet door (2).
4. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: the outer wall fixed mounting of movable rod (16) has the connecting block, and the outer wall of connecting block and the inner wall swing joint of support frame (1), and the bottom of support frame (1) is provided with the couple.
5. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: the quantity of kicking block (12) is four, and per two kicking blocks (12) are a set of, and two kicking blocks (12) in every kicking block of group (12) all use the horizontal central line symmetric distribution of second fixture block (14), and the inner wall of kicking block (12) is provided with the through-hole, and the diameter of through-hole is greater than the diameter of pinion rack (11).
6. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: the toothed plates (11) are located on the back face of the spring (13), the number of the toothed plates (11) is four, every two toothed plates (11) are in one group, and the two toothed plates (11) in each group of toothed plates (11) are symmetrically distributed with the vertical center line of the internal teeth (10).
7. The fiber laser marking machine convenient to maintain of claim 1, characterized in that: the inner wall of second fixture block (14) is provided with the circular slot and erects the groove, and the circular slot runs through the left side of second fixture block (14) and extends to the inner wall of second fixture block (14), erects the groove and runs through the top of second fixture block (14) and extends to the bottom inner wall of second fixture block (14), and erects the upper right corner of crossing department in groove and circular slot and be hollow, and the diameter of kicking block (12) is greater than the width of hollow department, and the diameter of movable rod (16) is less than the width of hollow department.
CN202120614618.2U 2021-03-26 2021-03-26 Easy maintenance's optic fibre laser marking machine Expired - Fee Related CN214558302U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120614618.2U CN214558302U (en) 2021-03-26 2021-03-26 Easy maintenance's optic fibre laser marking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120614618.2U CN214558302U (en) 2021-03-26 2021-03-26 Easy maintenance's optic fibre laser marking machine

Publications (1)

Publication Number Publication Date
CN214558302U true CN214558302U (en) 2021-11-02

Family

ID=78321917

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120614618.2U Expired - Fee Related CN214558302U (en) 2021-03-26 2021-03-26 Easy maintenance's optic fibre laser marking machine

Country Status (1)

Country Link
CN (1) CN214558302U (en)

Similar Documents

Publication Publication Date Title
CN211028699U (en) Building curtain built-in fitting combination welding system
CN214558302U (en) Easy maintenance's optic fibre laser marking machine
CN215749888U (en) Line cloth system is produced to bent cap
CN110811183B (en) Intelligent material evidence temporary storage cabinet
CN205313015U (en) Interlude formula glass fiber plate presss from both sides and rises device
JP3074049U (en) Synthetic resin fastener molding machine
CN212222025U (en) Yarn cutting device for bobbin
CN218375004U (en) Edge seam glue injection device for building decoration
CN212097733U (en) Forming bottom support mechanism of non-woven bag making machine
CN215116925U (en) Suspension shaft type optical fiber pay-off device
CN214266300U (en) Mold for manufacturing ejector sleeve
CN212191714U (en) Visual positioning marking machine
CN214866580U (en) Perforating device is used in cable testing bridge production
CN219360177U (en) Core-pulling mold
CN213026866U (en) Automatic net twine preparation separated time reason line device
CN216613544U (en) Spinning machine yarn guide with good applicability
CN219172819U (en) Loading mechanism device of unpacking machine
CN216686801U (en) Jean cloth unwinding device
CN215557316U (en) Hemp fabric raw material pouring device for spinning
CN210946022U (en) Device convenient for threading after thread breakage for textile equipment
CN216239197U (en) Novel ventilation curtain wall construction
CN215472754U (en) Injection mold with die sinking sequence control knot machine
CN213746250U (en) Protection mechanism of flexible LED lighting display device
CN214430493U (en) Forestry device of growing seedlings
CN214418418U (en) Mould clamping line equipment grinding device with function is collected to sweeps

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: 20211102

CF01 Termination of patent right due to non-payment of annual fee