CN217702929U - Flange linear bearing inner hole grinding device - Google Patents

Flange linear bearing inner hole grinding device Download PDF

Info

Publication number
CN217702929U
CN217702929U CN202222014401.5U CN202222014401U CN217702929U CN 217702929 U CN217702929 U CN 217702929U CN 202222014401 U CN202222014401 U CN 202222014401U CN 217702929 U CN217702929 U CN 217702929U
Authority
CN
China
Prior art keywords
fixedly connected
linear bearing
flange linear
support frame
carousel
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.)
Active
Application number
CN202222014401.5U
Other languages
Chinese (zh)
Inventor
谢忠品
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.)
Lishui Qida Bearing Manufacturing Co ltd
Original Assignee
Lishui Qida Bearing Manufacturing 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 Lishui Qida Bearing Manufacturing Co ltd filed Critical Lishui Qida Bearing Manufacturing Co ltd
Priority to CN202222014401.5U priority Critical patent/CN217702929U/en
Application granted granted Critical
Publication of CN217702929U publication Critical patent/CN217702929U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to a flange linear bearing hole grinder, which comprises a supporting foot, fixed connection is in the backup pad of supporting legs upper end, the backup pad upper end is rotated and is connected with the carousel, fixedly connected with can intermittent type nature drive the rotatory first motor of carousel on the supporting legs, carousel upper end fixedly connected with a plurality of equidistance evenly distributed's collar, the collar is kept away from carousel center pin one end and is opened there is the constant head tank, the backup pad rear end is equipped with the support frame, support frame upper end fixedly connected with mounting bracket, the inboard sliding connection of mounting bracket has the install bin, the install bin lower extreme rotates and is connected with the grinding rod, the inboard fixedly connected with of install bin can drive grinding rod pivoted second motor, the first cylinder of install bin upper end fixedly connected with, first cylinder fixed connection is in the support frame upper end, support frame upper end fixedly connected with second cylinder, second cylinder front end fixedly connected with locating piece, locating piece slidable connection is inboard at the constant head tank, a plurality of flange linear bearing can be placed to the device once, and is safe and reliable more.

Description

Flange linear bearing inner hole grinding device
Technical Field
The utility model relates to a grind the hole device field, especially relate to a flange linear bearing hole grinder.
Background
Application No.: CN 202123035440.5's utility model discloses a device of quick grinding flange bearing, including the drilling machine body, install the grinding rod on the drilling machine body main shaft, fixedly connected with workstation on the drilling machine body, workstation upper end fixedly connected with mounting panel, mounting panel upper end right side fixedly connected with cushion, the first fixed plate of cushion upper end fixedly connected with, the first semicircle locating piece of first fixed plate upper end fixedly connected with, mounting panel upper end left side fixedly connected with cylinder, cylinder right-hand member fixedly connected with connecting plate, connecting plate upper end fixedly connected with second fixed plate, the second semicircle locating piece of second fixed plate upper end fixedly connected with, put into the round hole that first semicircle locating piece and second semicircle locating piece merge to be constituteed together with flange bearing, fix a position flange bearing, start the drilling machine body, rotate the drilling machine rocking arm, make the grinding rod get into flange bearing and grind, when the circle is difficult to take out in flange bearing blocks, only need start the cylinder, the cylinder drives the connecting plate and moves to the left, the connecting plate drives the second fixed plate and moves to the left, can take out the flange bearing, make the device use more convenient, and the machining efficiency is higher. But once only can the clamping one, just can the clamping next flange linear bearing after need processing to accomplish, down time is long, and machining efficiency is lower, and the staff is in the operation process, and the hand is located the grinding rod below, if improper operation, causes the damage to the staff probably, and the security performance is not good.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the problem that above-mentioned prior art exists, provide a flange linear bearing hole grinder, once can place a plurality of flange linear bearing, machining efficiency is high, safe and reliable moreover.
The utility model provides a technical scheme that its technical problem adopted: the utility model provides a flange linear bearing hole grinder, including the supporting legs, fixed connection is in the backup pad of supporting legs upper end, backup pad upper end rotation is connected with the carousel, fixedly connected with can intermittent type nature drive the rotatory first motor of carousel on the supporting legs, carousel upper end fixedly connected with a plurality of equidistance evenly distributed's collar, the collar is kept away from carousel center pin one end and is opened there is the constant head tank, the backup pad rear end is equipped with the support frame, support frame upper end fixedly connected with mounting bracket, the inboard sliding connection of mounting bracket has the install bin, the install bin lower extreme rotates and is connected with the grinding rod, the inboard fixedly connected with of install bin can drive grinding rod pivoted second motor, install bin upper end fixedly connected with first cylinder, first cylinder fixed connection is in the mounting bracket upper end, support frame upper end fixedly connected with second cylinder, second cylinder front end fixedly connected with locating piece, but sliding connection is in the constant head tank inboard, the inside diameter of install bin is greater than flange linear bearing outer lane diameter, place the collar inboard with flange linear bearing, first motor drives the carousel and rotates certain angle, when flange linear bearing is located the grinding rod, flange linear bearing drives the locating piece to move forward, make the flange linear bearing put the operation stick more convenient, make the flange linear bearing, make the grinding device, it is more convenient to use.
For further improvement, carousel lower extreme fixedly connected with sheave, the sheave is located the backup pad lower extreme, and the sheave right-hand member is equipped with the driver plate with sheave looks adaptation, driver plate upper end fixedly connected with driving lever, and motor fixed connection is at the driver plate lower extreme, and the quantity of collar is unanimous with the sheave groove number for motor control carousel is more convenient.
Further perfect, driver plate upper end fixedly connected with holding ring, the sheave outside is opened has the arc wall of a plurality of and holding ring looks adaptation, and the quantity of arc wall is unanimous with the sheave groove number, and the holding ring can be fixed a position the sheave for the positioning accuracy of collar is higher.
Further perfect, support frame left end fixedly connected with water pumping barrel, the inboard sliding connection of water pumping barrel has the piston rod, water pumping barrel lower extreme fixedly connected with drinking-water pipe, install first check valve on the drinking-water pipe, the water storage box is installed to the drinking-water pipe lower extreme, water pumping barrel lower extreme front side fixedly connected with spray pipe, install the second check valve on the spray pipe, piston rod upper end fixedly connected with clamp plate, both ends are the one end of fixedly connected with spring about the clamp plate, the other end fixed connection of spring is on the support frame, the clamp plate upper end is equipped with the briquetting of fixed connection at the installation box left end, when first cylinder drives the installation box and moves down, the installation box drives the briquetting and moves down, briquetting contact pressure plate drives the clamp plate and moves down, the clamp plate drives the piston rod and moves down, make the lubricating oil in the water pumping barrel spout grinding rod department through the drinking-water pipe, when first cylinder drives the installation box and moves up, the clamp plate kick-back drives the clamp plate and moves up, the clamp plate drives the piston rod to move up, the drinking-water pumping barrel inboard with the lubricating oil suction of water storage box, need not to use the water pump can accomplish the automatic spray of lubricating oil, energy saving, and can save cost, it makes the grinding effect of device better to add lubricating oil to make.
Further perfect, the spring inboard is equipped with the guiding axle of fixed connection at the clamp plate lower extreme, and guiding axle sliding connection avoids the skew route of spring on the support frame for the result of use of spring is better.
Further perfect, the collar inboard is equipped with the through-hole of opening on the carousel, and the backup pad rear side is opened there is water drainage tank, and the water drainage tank outside is equipped with the water-collecting box of fixed connection at the backup pad lower extreme, can collect used lubricating oil for the device uses cleaner, and the result of use is better.
Further perfect, carousel outside fixedly connected with keeps off the ring, and the collar outside is equipped with the wash port of opening on the carousel for the lubricating oil that flows the collar also can be collected, and the result of use of device is better, and workman's operational environment is better, and the device uses more green.
Further perfect, water-collecting box lower extreme fixedly connected with drain pipe, drain pipe and water storage box intercommunication for lubricating oil can circulate, makes the device energy-concerving and environment-protective more, makes the device result of use better.
Further perfect, install the filter screen in the water storage box, the drain pipe is located the filter screen top, and the drinking-water pipe passes the filter screen, and the filter screen can be filtered the used lubricating oil, avoids causing the jam to the pipeline for the device is green more, and the result of use is better.
Further perfect, the first belt pulley of grinding rod upper end fixedly connected with, second motor lower extreme fixedly connected with second belt pulley are connected through the conveyer belt between first belt pulley and the second belt pulley for the grinding rod operation is more steady.
Further perfect, both ends are fixedly connected with slider about the install bin, fixedly connected with guide rail on the mounting bracket, and slider sliding connection is in the guide rail outside.
Further perfection, the positioning block is a V-shaped block, so that the positioning effect of the positioning block is better.
The utility model discloses profitable effect is: the utility model discloses a can place a plurality of flange linear bearing once, high machining efficiency, and safe and reliable, it is inboard to place flange linear bearing the collar, first motor drives the carousel and rotates certain angle, when flange linear bearing is located the grinding rod lower extreme, the second cylinder drives the locating piece and moves forward flange linear bearing fixes a position fixedly, first cylinder drives the install bin and moves down, the second motor drives the grinding rod and rotates and grind flange linear bearing, be equipped with a plurality of collars, make the device once can place a plurality of flange linear bearing, when the staff operates, keep away from the grinding rod, make the device use safe and reliable more, the diameter of install bin is great, make flange linear bearing put and get more convenient, the holding ring can fix a position the sheave, make the location precision of install bin higher, when first cylinder drives the install bin and moves down, the install bin drives the briquetting and moves down, the briquetting drives the clamp plate and moves down, the clamp plate drives the piston rod and moves down, make the lubricating oil in the suction bucket spout the grinding rod department through the spray pipe, when first cylinder drives the install bin and moves up, the spring drives the clamp plate to move up, it moves up to drive the clamp plate, the interior lubricating oil of suction pipe, the water storage tank, the lubricating oil can carry out the environmental protection device, the energy saving effect of the use of the device more, make the lubricating oil saving device, the environmental protection can be more convenient use, the lubricating oil.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention;
FIG. 3 is a schematic view of the supporting frame of the present invention;
FIG. 4 is a sectional view of the water extracting barrel of the present invention;
fig. 5 is a schematic structural view of the support plate of the present invention;
fig. 6 is a schematic structural view of the support plate of the present invention;
fig. 7 is a schematic structural view of the sheave of the present invention;
fig. 8 is a schematic structural diagram of the inside of the installation box of the present invention.
Description of reference numerals: 1. a support plate; 11. supporting legs; 12. a water discharge tank; 13. a water collection box; 131. a drain pipe; 2. a turntable; 21. a grooved wheel; 211. an arc-shaped slot; 22. a dial; 221. a deflector rod; 222. a positioning ring; 223. a first motor; 23. a through hole; 24. a mounting ring; 241. positioning a groove; 25. a drain hole; 26. a baffle ring; 3. a support frame; 31. a mounting frame; 311. a guide rail; 32. installing a box; 321. a slider; 322. a first cylinder; 323. briquetting; 33. a grinding rod; 331. a first pulley; 34. a second motor; 341. a second pulley; 342. a conveyor belt; 35. a second cylinder; 351. positioning blocks; 36. a water pumping barrel; 361. a piston rod; 362. a water pumping pipe; 363. a first check valve; 364. a water spray pipe; 365. a second one-way valve; 366. pressing a plate; 367. a spring; 368. a guide shaft; 37. a water storage tank; 371. and (5) filtering by using a filter screen.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-3 and 7: the embodiment of the invention provides a grinding device for an inner hole of a flange linear bearing, which comprises a supporting leg 11, a supporting plate 1 fixedly connected to the upper end of the supporting leg 11, a rotary disc 2 is rotatably connected to the upper end of the supporting plate 1, a grooved wheel 21 is fixedly connected to the lower end of the rotary disc 2, the grooved wheel 21 is located at the lower end of the supporting plate 1, a driving disc 22 adapted to the grooved wheel 21 is arranged at the right end of the grooved wheel 21, a driving lever 221 is fixedly connected to the upper end of the driving disc 22, a first motor 223 is fixedly connected to the lower end of the driving disc 22, a plurality of arc-shaped grooves 211 adapted to the positioning ring 222 are formed in the outer side of the grooved wheel 21, the number of the arc-shaped grooves 211 is consistent with the number of the grooved wheel 21 grooves, a plurality of mounting rings 24 uniformly distributed at equal intervals are fixedly connected to the upper end of the rotary disc 2, a positioning groove 241 is formed in one end, of the mounting ring 24, which is far away from the central shaft of the rotary disc 2, the diameter of the mounting ring 24 is larger than the diameter of an outer ring of a processed flange linear bearing, a supporting frame 3 is arranged at the rear end, a supporting frame 3, a second cylinder 35 is fixedly connected with a second cylinder 35, a positioning block 351 which is a V-shaped block 241 and is fixedly connected to the inner hole and is slidably connected to the inner side of the positioning block 241.
As shown in fig. 1-4 and 8: the upper end of the supporting frame 3 is fixedly connected with a mounting frame 31, the inner side of the mounting frame 31 is slidably connected with a mounting box 32, the left end and the right end of the mounting box 32 are fixedly connected with a sliding block 321, the mounting frame 31 is fixedly connected with a guide rail 311, the sliding block 321 is slidably connected with the outer side of the guide rail 311, the lower end of the mounting box 32 is rotatably connected with a grinding rod 33, the upper end of the grinding rod 33 is fixedly connected with a first belt pulley 331, the rear end of the first belt pulley 331 is provided with a second belt pulley 341 rotatably connected with the inner side of the mounting box 32, the first belt pulley 331 is connected with the second belt pulley 341 through a conveying belt 342, the upper end of the second belt pulley 341 is fixedly connected with a second motor 34, the second motor 34 is fixedly connected with the inner side of the mounting box 32, the upper end of the mounting box 32 is fixedly connected with a first air cylinder 322, and the first air cylinder 322 is fixedly connected with the upper end of the mounting frame 31, the left end of the support frame 3 is fixedly connected with a water pumping barrel 36, the inner side of the water pumping barrel 36 is slidably connected with a piston rod 361, the lower end of the water pumping barrel 36 is fixedly connected with a water pumping pipe 362, a first check valve 363 is installed on the water pumping pipe 362, a water storage tank 37 is installed at the lower end of the water pumping pipe 362, a water spraying pipe 364 is fixedly connected to the front side of the lower end of the water pumping barrel 36, a second check valve 365 is installed on the water spraying pipe 364, a pressing plate 366 is fixedly connected to the upper end of the piston rod 361, one end of a spring 367 is fixedly connected to the left end and the right end of the pressing plate 366, the other end of the spring 367 is fixedly connected to the support frame 3, a guide shaft 368 fixedly connected to the lower end of the pressing plate 366 is arranged on the inner side of the spring 367, the guide shaft 368 is slidably connected to the support frame 3, and a pressing block 323 fixedly connected to the left end of the mounting tank 32 is arranged at the upper end of the pressing plate 366.
As shown in fig. 1-6: the through-hole 23 of opening on carousel 2 is equipped with to the collar 24 inboard, the rear side of backup pad 1 is opened has water drainage tank 12, water drainage tank 12 outside is equipped with water-collecting box 13 of fixed connection at the backup pad 1 lower extreme, 2 outside fixedly connected with of carousel keeps off ring 26, the collar 24 outside is equipped with the wash port 25 of opening on carousel 2, water-collecting box 13 lower extreme fixedly connected with drain pipe 131, drain pipe 131 communicates with water storage box 37, install filter screen 371 in the water storage box 37, drain pipe 131 is located filter screen 371 top, drinking-water pipe 362 passes filter screen 371.
The utility model discloses when using: when the flange linear bearing is positioned under the grinding rod 33, the second cylinder 35 drives the positioning block 351 to move forward to position and fix the flange linear bearing, the first cylinder 322 drives the installation box 32 to move downward, the installation box 32 drives the grinding rod 33 to move downward, the second motor 34 drives the second belt pulley 341 to rotate, the second belt pulley 341 drives the first belt pulley 331 to rotate through the conveyor belt 342, the first belt pulley 331 drives the grinding rod 33 to rotate to grind the flange linear bearing, when the first cylinder 322 drives the installation box 32 to move downward, the installation box 32 drives the pressing block 323 to move downward, the pressing block 323 contacts the pressing plate 366 to drive the pressing plate 366 to move downward, the pressing plate 366 drives the piston rod 361 to move downward, so that the lubricating oil in the water pumping tank 36 is sprayed to the grinding rod 33 through the water spraying pipe 364, when the first cylinder 322 drives the installation box 32 to move upward, the spring rebounds to drive the pressing plate 366 to move upward, the pressing plate 366 drives the piston rod 366 to move upward, and the water pumping pipe 362 pumps the lubricating oil in the water pumping tank 37 into the water tank 36.
While the invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details of the flanged linear bearing bore grinding apparatus may be made within the scope of the appended claims.

Claims (10)

1. The utility model provides a flange linear bearing hole grinder, includes supporting legs (11), fixed connection backup pad (1) in supporting legs (11) upper end, characterized by: backup pad (1) upper end is rotated and is connected with carousel (2), fixedly connected with can intermittent type nature drives first motor (223) of carousel (2) rotation on supporting legs (11), carousel (2) upper end fixedly connected with a plurality of equidistance evenly distributed's collar (24), collar (24) are kept away from carousel (2) center pin one end and are opened constant head tank (241), backup pad (1) rear end is equipped with support frame (3), support frame (3) upper end fixedly connected with mounting bracket (31), inboard sliding connection of mounting bracket (31) has install bin (32), install bin (32) lower extreme rotates and is connected with grinding rod (33), inboard fixedly connected with of install bin (32) can drive grinding rod (33) pivoted second motor (34), install bin (32) upper end fixedly connected with first cylinder (322), first cylinder (322) fixed connection is in mounting bracket (31) upper end, support frame (3) upper end fixedly connected with second cylinder (35), second cylinder (35) front end fixedly connected with locating piece (351), but locating piece (351) inboard sliding connection is in constant head tank (241), collar (24) hole diameter is greater than the linear bearing diameter that will process.
2. The grinding device for the inner hole of the flange linear bearing, as claimed in claim 1, is characterized in that: carousel (2) lower extreme fixedly connected with sheave (21), sheave (21) are located backup pad (1) lower extreme, and sheave (21) right-hand member is equipped with driver plate (22) with sheave (21) looks adaptation, and driver plate (22) upper end fixedly connected with driving lever (221), first motor (223) fixed connection are at driver plate (22) lower extreme, and the quantity of collar (24) is unanimous with sheave (21) groove number.
3. The grinding device for the inner hole of the flange linear bearing, which is characterized in that: the upper end of the drive plate (22) is fixedly connected with a positioning ring (222), a plurality of arc-shaped grooves (211) matched with the positioning ring (222) are formed in the outer side of the grooved wheel (21), and the number of the arc-shaped grooves (211) is consistent with that of the grooved wheel (21).
4. The grinding device for the inner hole of the flange linear bearing, as claimed in claim 1, is characterized in that: support frame (3) left end fixedly connected with water pumping barrel (36), water pumping barrel (36) inboard sliding connection has piston rod (361), water pumping barrel (36) lower extreme fixedly connected with drinking-water pipe (362), install first check valve (363) on drinking-water pipe (362), drinking-water pipe (362) lower extreme is connected with water storage box (37), water pumping barrel (36) lower extreme front side fixedly connected with spray pipe (364), install second check valve (365) on spray pipe (364), piston rod (361) upper end fixedly connected with clamp plate (366), the one end of both ends all fixedly connected with spring (367) is controlled to clamp plate (366), the other end fixed connection of spring (367) is on support frame (3), clamp plate (366) upper end is equipped with briquetting (323) of fixed connection at install bin (32) left end.
5. The grinding device for the inner hole of the flange linear bearing, as claimed in claim 4, is characterized in that: a guide shaft (368) fixedly connected to the lower end of the pressure plate (366) is arranged on the inner side of the spring (367), and the guide shaft (368) is connected to the support frame (3) in a sliding mode.
6. The grinding device for the inner hole of the flange linear bearing, which is characterized in that: the mounting ring (24) is provided with a through hole (23) arranged on the turntable (2) on the inner side, a water drainage groove (12) is formed in the rear side of the supporting plate (1), and a water collecting box (13) fixedly connected to the lower end of the supporting plate (1) is arranged on the outer side of the water drainage groove (12).
7. The grinding device for the inner hole of the flange linear bearing, which is characterized in that: the outer side of the rotary disc (2) is fixedly connected with a baffle ring (26), and the outer side of the mounting ring (24) is provided with a drain hole (25) formed in the rotary disc (2).
8. The grinding device for the inner hole of the flange linear bearing, as claimed in claim 6, is characterized in that: the lower end of the water collecting box (13) is fixedly connected with a drain pipe (131), and the drain pipe (131) is communicated with the water storage tank (37).
9. The grinding device for the inner hole of the flange linear bearing as claimed in claim 8, wherein: install filter screen (371) in water storage box (37), drain pipe (131) are located filter screen (371) top, and drinking-water pipe (362) pass filter screen (371).
10. The grinding device for the inner hole of the flange linear bearing, as claimed in claim 1, is characterized in that: the grinding rod (33) upper end fixedly connected with first belt pulley (331), second motor (34) lower extreme fixedly connected with second belt pulley (341), connect through conveyer belt (342) between first belt pulley (331) and the second belt pulley (341).
CN202222014401.5U 2022-08-02 2022-08-02 Flange linear bearing inner hole grinding device Active CN217702929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222014401.5U CN217702929U (en) 2022-08-02 2022-08-02 Flange linear bearing inner hole grinding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222014401.5U CN217702929U (en) 2022-08-02 2022-08-02 Flange linear bearing inner hole grinding device

Publications (1)

Publication Number Publication Date
CN217702929U true CN217702929U (en) 2022-11-01

Family

ID=83780735

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222014401.5U Active CN217702929U (en) 2022-08-02 2022-08-02 Flange linear bearing inner hole grinding device

Country Status (1)

Country Link
CN (1) CN217702929U (en)

Similar Documents

Publication Publication Date Title
CN106050920A (en) Production system of hub bearing
CN104588257A (en) Gluing device for filter upper cover sealing ring
CN112296808B (en) Polishing mechanism for metal products
CN111002210B (en) Automatic polishing equipment for surface of piston rod
CN211029302U (en) Plane glass polishing device
CN109622481B (en) Cleaning and processing device for parts for mechanical engineering
CN217702929U (en) Flange linear bearing inner hole grinding device
CN108621025B (en) Grinding machine
CN213319346U (en) Metalwork grinding device for machining
CN213136191U (en) A grinding device for valve cross-section processing
CN211867336U (en) A sweep ray apparatus for cell-phone tempering membrane
CN108057666A (en) A kind of environment-friendly dustless quantitative cleaning equipment
CN211053387U (en) Be used for pipeline lathe of polishing
CN209735217U (en) space dust removal device
CN112548805A (en) Be used for pipeline lathe of polishing
CN203092311U (en) Wet-type wheel hub polishing machine
CN109648318B (en) Pump shaft assembling machine for plastic pump
CN204602513U (en) A kind of glue spreading apparatus for Upper Lid of Filter sealing ring
CN207876837U (en) Glass loader
CN113414670A (en) Grinding machine with good heat dissipation effect
CN208528647U (en) A kind of horizontal Machining centers Scrap-removing machine carrier bar cleaning mechanism
CN208215030U (en) A kind of anti-scrap splashing sander
CN212774969U (en) Oil refining is centrifugal compressor impeller scale deposit processing apparatus for chemical industry
CN206083265U (en) Fork truck car frame body's washing rotary mechanism
CN220143742U (en) Oiling tool for needle bearing

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant