CN213794351U - Drilling device of gear box for extruder convenient to location - Google Patents

Drilling device of gear box for extruder convenient to location Download PDF

Info

Publication number
CN213794351U
CN213794351U CN202022432344.3U CN202022432344U CN213794351U CN 213794351 U CN213794351 U CN 213794351U CN 202022432344 U CN202022432344 U CN 202022432344U CN 213794351 U CN213794351 U CN 213794351U
Authority
CN
China
Prior art keywords
drilling
fixing
steering
linkage
fixed
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
CN202022432344.3U
Other languages
Chinese (zh)
Inventor
何世全
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.)
Chengdu Jinji Machinery Manufacturing Co ltd
Original Assignee
Chengdu Jinji Machinery 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 Chengdu Jinji Machinery Manufacturing Co ltd filed Critical Chengdu Jinji Machinery Manufacturing Co ltd
Priority to CN202022432344.3U priority Critical patent/CN213794351U/en
Application granted granted Critical
Publication of CN213794351U publication Critical patent/CN213794351U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The utility model discloses a drilling device of a gear box for an extruder convenient to position, which belongs to the technical field of gear box processing and comprises a drilling base, a fixing component and a drilling component, wherein the fixing component is fixedly arranged at one side of the drilling base, the drilling component is fixedly arranged at the other side of the drilling base, the working end of the drilling component is arranged on the fixing component, the fixing component at one side of the drilling base is used for automatically clamping and fixing the gear box of the extruder in the processing process, the position of the gear box of the extruder in the drilling process is prevented from shifting, after the gear box of the extruder is fixed, the automatic drilling operation is carried out on the gear box of the extruder through the setting of the drilling component, and the automatic fixing and drilling operation of the gear box of the extruder is completed through the matching operation between the fixing component and the drilling component, the manual operation is replaced, the working efficiency is improved, the error is reduced, and the practicability is higher.

Description

Drilling device of gear box for extruder convenient to location
Technical Field
The utility model belongs to the technical field of the gear box processing technique and specifically relates to a drilling equipment of gear box for extruder convenient to location is related to.
Background
The gear box plays an important role as a power transmission part of single-screw extruder equipment, and the quality and the efficiency of the gear box directly determine the performance of the whole set of equipment. Simultaneously, its installation space's arrangement, it is very little to require the appearance of gear box, the integrated level is higher, the gear box of extruder need drill the operation to it in the course of working, the gear box need be fixed to it at the drilling in-process, prevent that the gear box from taking place the skew at the in-process position of drilling, influence the quality of product, current gear box is mostly fixing the back through the manual work with the gear box and is carrying out the operation of drilling at the drilling in-process, fix the drilling through the manual work to the gear box, both influence drilling efficiency and still can have certain error.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drilling equipment of gear box for extruder convenient to location to solve the technical problem who mentions in the background art.
The utility model provides a drilling equipment of gear box for extruder convenient to location, including drilling base, fixed subassembly and drilling subassembly, the fixed one side that sets up on the drilling base of fixed subassembly, the fixed opposite side that sets up on the drilling base of drilling subassembly, the work end of drilling subassembly is located on the fixed subassembly.
Further, fixed subassembly all includes mount, push cylinder, catch bar, linkage slide rail and mounting, the fixed one side that sets up on the drilling base of mount, push cylinder is fixed to be set up on the intermediate position of mount, the catch bar is on the output that transversely sets up push cylinder, the middle section position of catch bar with push cylinder's output fixed connection, the linkage is equipped with two sets ofly, two sets ofly the linkage sets up respectively on the both ends of catch bar, the linkage slide rail is the opposite side of transversely fixed setting on the mount, the mounting is equipped with two sets ofly, two sets ofly the mounting symmetry sets up on the linkage slide rail, two sets ofly the mounting all with linkage slide rail sliding fit, two sets ofly the linkage can drive a set of mounting respectively and carry out the fixed operation.
Further, every group the linkage all includes head rod, first gangbar, second connecting rod, second gangbar, third connecting rod and sector gear, the head rod be vertical fixed setting in one of catch bar serve, the one end of first gangbar is rotated and is set up on the head rod, the second connecting rod is vertical fixed setting on the other end of first gangbar, the one end of second gangbar is rotated and is set up on the second connecting rod, the fixed one side that sets up on the mount of third connecting rod, sector gear's intermediate position is rotated and is set up on the third connecting rod, the other end of second gangbar with sector gear connects.
Further, each group of fixing parts comprises a fixed sliding block, a fixed rack and a fixed plate, the fixed sliding block is arranged on a linkage sliding rail and is in sliding fit with the linkage sliding rail, the fixed rack is fixedly arranged on one side of the fixed sliding block and is meshed with the sector gear, the fixed plate is fixedly arranged on the other side of the fixed sliding block, and a rubber pad is arranged on the fixed plate in a laminating mode.
Further, the drilling subassembly includes to turn to piece, regulating part and drilling machine, the regulating part sets up on turning to the piece, turn to the piece and can drive the regulating part and turn to the operation, the drilling machine sets up on the regulating part, the regulating part can drive the drilling machine and adjust the operation.
Further, the steering part includes bogie, steering motor, steering gear, steering spindle and bogie plate, the bogie is fixed to be set up on the drilling base, the fixed below that sets up the bogie on the drilling base of steering motor, steering gear is equipped with two, one of them steering gear is fixed to be set up on the output shaft that turns to the motor, the steering spindle rotates to set up on the intermediate position of bogie, another steering gear is fixed to be set up at the lower extreme of steering spindle, two steering gear intermeshing, the fixed upper end that sets up at the steering spindle of bogie plate.
Further, alignment jig, lifting push rod, lifter plate, telescopic push rod and expansion plate, the alignment jig is the L type, the one end of alignment jig is fixed to be set up on the bogie plate, lifting push rod is fixed to be set up on the other end of alignment jig, lifting push rod's output runs through the alignment jig, the fixed setting of lifter plate is on lifting push rod's output, telescopic push rod is fixed to be set up on the lifter plate, the expansion plate is fixed to be set up on telescopic push rod's output, the drilling machine is fixed to be set up on the expansion plate.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the setting of the fixed subassembly through one side on the drilling base is used for carrying out automatic clamping with the extruder gear box in the course of working and fixes, prevent that the extruder gear box from taking place the skew at the in-process position of drilling, the rethread drilling subassembly carries out automatic drilling operation to the extruder gear box when the extruder gear box is fixed to finish the setting of back rethread drilling subassembly, the operation of extruder gear box automatic fixation and drilling has been accomplished through the cooperation work between fixed subassembly and the drilling subassembly, manual work has been replaced, the work efficiency is improved, the error is reduced, and the practicality is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic perspective view of the fixing assembly of the present invention;
fig. 3 is a schematic perspective view of the fixing assembly of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the drilling assembly of the present invention.
Reference numerals: the drilling machine comprises a drilling base 1, a fixing component 2, a fixing frame 21, a pushing cylinder 22, a pushing rod 23, a linkage piece 24, a first connecting rod 241, a first linkage rod 242, a second connecting rod 243, a second linkage rod 244, a third connecting rod 245, a sector gear 246, a linkage sliding rail 25, a fixing piece 26, a fixing sliding block 261, a fixing rack 262, a fixing plate 263, a drilling component 3, a steering piece 31, a steering frame 311, a steering motor 312, a steering gear 313, a steering shaft 314, a steering plate 315, an adjusting piece 32, an adjusting frame 321, a lifting push rod 322, a lifting plate 323, a telescopic push rod 324, a telescopic plate 325 and a drilling machine 33.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, an embodiment of the present invention provides a drilling device for a gear box for an extruder, which is convenient for positioning, and includes a drilling base 1, a fixing component 2 and a drilling component 3, wherein the fixing component 2 is fixedly disposed on one side of the drilling base 1, the drilling component 3 is fixedly disposed on the other side of the drilling base 1, a working end of the drilling component 3 is disposed on the fixing component 2, the fixing component 2 is disposed on one side of the drilling base 1 for automatically clamping and fixing the gear box for the extruder during a processing process, so as to prevent the gear box for the extruder from shifting during a drilling process, after the gear box for the extruder is fixed, the gear box for the extruder is automatically drilled through the setting of the drilling component 3, and the automatic fixing and drilling operations of the gear box for the extruder are completed through the cooperation between the fixing component 2 and the drilling component 3, the manual operation is replaced, the working efficiency is improved, the error is reduced, and the practicability is higher.
Specifically, the fixing assemblies 2 each include a fixing frame 21, a pushing cylinder 22, a pushing rod 23, two sets of linkage members 24, a linkage slide rail 25 and a fixing member 26, the fixing frame 21 is fixedly disposed on one side of the drilling base 1, the pushing cylinder 22 is fixedly disposed at a middle position of the fixing frame 21, the pushing rod 23 is transversely disposed at an output end of the pushing cylinder 22, a middle position of the pushing rod 23 is fixedly connected with an output end of the pushing cylinder 22, the two sets of linkage members 24 are disposed, the two sets of linkage members 24 are respectively disposed at two ends of the pushing rod 23, the linkage slide rail 25 is transversely and fixedly disposed at the other side of the fixing frame 21, the two sets of fixing members 26 are symmetrically disposed on the linkage slide rail 25, the two sets of fixing members 26 are both slidably engaged with the linkage slide rail 25, the two sets of linkage members 24 can respectively drive one set of fixing members 26 to perform fixing operation, the pushing cylinder 22 on the fixing frame 21 in the fixing component 2 works to drive the pushing rod 23 to work, two ends of the pushing rod 23 respectively drive two groups of linkage parts 24 to work, and the two groups of linkage parts 24 respectively drive two groups of fixing parts 26 to adjust on the linkage slide rail 25, so that the extruder gear box is fixed.
Specifically, each group of linkage members 24 includes a first connecting rod 241, a first linkage rod 242, a second connecting rod 243, a second connecting rod 244, a third connecting rod 245 and a sector gear 246, the first connecting rod 241 is vertically and fixedly disposed at one end of the pushing rod 23, one end of the first linkage rod 242 is rotatably disposed on the first connecting rod 241, the second connecting rod 243 is vertically and fixedly disposed at the other end of the first linkage rod 242, one end of the second linkage rod 244 is rotatably disposed on the second connecting rod 243, the third connecting rod 245 is fixedly disposed at one side of the fixed frame 21, the middle position of the sector gear 246 is rotatably disposed on the third connecting rod 245, the other end of the second linkage rod 244 is connected with the sector gear 246, at this time, two ends of the pushing rod 23 respectively drive the first connecting rods 241 of the two groups of linkage members 24 to adjust, the first linkage rod 241 drives the first linkage rod 242 to adjust, the first linkage rod 242 drives the second linkage rod 243 to adjust, the second linkage rod 243 drives the second linkage rod 244 to adjust, the second linkage rod 244 drives the third linkage rod 245 to adjust, and the third linkage rod 245 adjusts the sector gear 246.
Specifically, each set of the fixing elements 26 includes a fixed slider 261, a fixed rack 262 and a fixed plate 263, the fixed slider 261 is disposed on the linkage slide rail 25, the fixed slider 261 is in sliding fit with the linkage slide rail 25, the fixed rack 262 is fixedly disposed on one side of the fixed slider 261, the fixed rack 262 is engaged with the sector gear 246, the fixed plate 263 is fixedly disposed on the other side of the fixed slider 261, a rubber pad is attached to the fixed plate 263, at this time, the sector gear 246 in the linkage element 24 drives the fixed rack 262 in the fixing element 26 engaged therewith to adjust, the fixed rack 262 drives the fixed slider 261 fixedly connected therewith to adjust, and the fixed slider moves on the fixed linkage slide rail 25 to adjust and drives the fixed plate 261 fixedly connected therewith to fix.
Specifically, drilling subassembly 3 includes to a 31, regulating part 32 and drilling machine 33, regulating part 32 sets up on a 31 turns to, a 31 can drive regulating part 32 and turn to the operation, drilling machine 33 sets up on regulating part 32, regulating part 32 can drive drilling machine 33 and adjust the operation, and the setting of a 31 among the drilling subassembly 3 is used for driving drilling machine 33 to carry out automatic direction regulation, and the setting of regulating part 32 is used for driving drilling machine 33 to go up and down and the regulation operation of flexible.
Specifically, the steering member 31 includes a steering frame 311, a steering motor 312, two steering gears 313, a steering shaft 314 and two steering plates 315, the steering frame 311 is fixedly disposed on the drilling base 1, the steering motor 312 is fixedly disposed below the steering frame 311 on the drilling base 1, one of the two steering gears 313 is fixedly disposed on an output shaft of the steering motor 312, the steering shaft 314 is rotatably disposed at a middle position of the steering frame 311, the other steering gear 313 is fixedly disposed at a lower end of the steering shaft 314, the two steering gears 313 are engaged with each other, the steering plate 315 is fixedly disposed at an upper end of the steering shaft 314, when the steering member 31 operates, the steering motor 312 operates to drive the steering gear 313 fixedly connected thereto to rotate, and the steering gear 313 drives the other steering gear 313 engaged therewith to rotate, the other steering gear 313 drives a steering shaft 314 fixedly connected with the other steering gear to rotate, and the steering shaft 314 drives a steering plate 315 to perform steering adjustment while rotating on the bogie 311.
Specifically, an adjusting frame 321, a lifting push rod 322, a lifting plate 323, a telescopic push rod 324 and a telescopic plate 325, the adjusting bracket 321 is L-shaped, one end of the adjusting bracket 321 is fixedly arranged on the steering plate 315, the lifting push rod 322 is fixedly arranged at the other end of the adjusting frame 321, the output end of the lifting push rod 322 penetrates through the adjusting frame 321, the lifting plate 323 is fixedly arranged at the output end of the lifting push rod 322, the telescopic push rod 324 is fixedly arranged on the lifting plate 323, the extension plate 325 is fixedly provided on the output end of the extension push rod 324, the drill 33 is fixedly provided on the extension plate 325, when the drilling machine 33 needs to be adjusted, the lifting push rod 322 on the adjusting bracket 321 drives the lifting plate 323 to perform automatic lifting operation, the telescopic push rod 324 on the lifting plate 323 drives the telescopic plate 325 to perform telescopic operation, and the drilling machine 33 on the telescopic plate 325 performs telescopic adjustment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a drilling equipment of gear box for extruder convenient to location which characterized in that: including drilling base (1), fixed subassembly (2) and drilling subassembly (3), fixed subassembly (2) are fixed to be set up the one side on drilling base (1), drilling subassembly (3) are fixed to be set up the opposite side on drilling base (1), the work end of drilling subassembly (3) is located on fixed subassembly (2).
2. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 1, is characterized in that: the fixed components (2) respectively comprise a fixed frame (21), a pushing cylinder (22), a pushing rod (23), a linkage piece (24), a linkage sliding rail (25) and a fixing piece (26), the fixed frame (21) is fixedly arranged on one side of the drilling base (1), the pushing cylinder (22) is fixedly arranged at the middle position of the fixed frame (21), the pushing rod (23) is transversely arranged at the output end of the pushing cylinder (22), the middle position of the pushing rod (23) is fixedly connected with the output end of the pushing cylinder (22), the linkage piece (24) is provided with two groups, the two groups of linkage pieces (24) are respectively arranged at the two ends of the pushing rod (23), the linkage sliding rail (25) is transversely and fixedly arranged at the other side of the fixed frame (21), the fixing piece (26) is provided with two groups, and the two groups of fixing pieces (26) are symmetrically arranged on the linkage sliding rail (25), the two groups of fixing pieces (26) are in sliding fit with the linkage sliding rails (25), and the two groups of linkage pieces (24) can respectively drive one group of fixing pieces (26) to perform fixing operation.
3. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 2, is characterized in that: each group of linkage pieces (24) comprises a first connecting rod (241), a first linkage rod (242), a second connecting rod (243), a second linkage rod (244), a third connecting rod (245) and a sector gear (246), the first connecting rod (241) is vertically and fixedly arranged on one end of the push rod (23), one end of the first linkage rod (242) is rotatably arranged on the first connecting rod (241), the second connecting rod (243) is vertically and fixedly arranged at the other end of the first linkage rod (242), one end of the second linkage rod (244) is rotatably arranged on the second connecting rod (243), the third connecting rod (245) is fixedly arranged on one side of the fixed frame (21), the middle position of the sector gear (246) is rotationally arranged on a third connecting rod (245), the other end of the second link lever (244) is connected to the sector gear (246).
4. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 3, is characterized in that: each group of fixing pieces (26) comprises a fixing sliding block (261), a fixing rack (262) and a fixing plate (263), the fixing sliding block (261) is arranged on a linkage sliding rail (25), the fixing sliding block (261) is in sliding fit with the linkage sliding rail (25), the fixing rack (262) is fixedly arranged on one side of the fixing sliding block (261), the fixing rack (262) is meshed with the sector gear (246), the fixing plate (263) is fixedly arranged on the other side of the fixing sliding block (261), and a rubber pad is attached to the fixing plate (263).
5. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 4, is characterized in that: drilling subassembly (3) are including turning to piece (31), regulating part (32) and drilling machine (33), regulating part (32) set up on turning to piece (31), turning to piece (31) can drive regulating part (32) and turn to the operation, drilling machine (33) set up on regulating part (32), regulating part (32) can drive drilling machine (33) and adjust the operation.
6. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 5, is characterized in that: the steering part (31) comprises a steering frame (311), a steering motor (312), steering gears (313), a steering shaft (314) and a steering plate (315), wherein the steering frame (311) is fixedly arranged on the drilling base (1), the steering motor (312) is fixedly arranged below the steering frame (311) on the drilling base (1), the number of the steering gears (313) is two, one of the steering gears (313) is fixedly arranged on an output shaft of the steering motor (312), the steering shaft (314) is rotatably arranged in the middle of the steering frame (311), the other steering gear (313) is fixedly arranged at the lower end of the steering shaft (314), the two steering gears (313) are mutually meshed, and the steering plate (315) is fixedly arranged at the upper end of the steering shaft (314).
7. The drilling device for the gearbox for the extruder, which is convenient to position, according to claim 6, is characterized in that: adjusting bracket (321), lift push rod (322), lifter plate (323), telescopic push rod (324) and expansion plate (325), adjusting bracket (321) is the L type, the fixed setting on bogie plate (315) of one end of adjusting bracket (321), lift push rod (322) are fixed to be set up on the other end of adjusting bracket (321), the output of lift push rod (322) runs through adjusting bracket (321), the fixed setting of lifter plate (323) is on the output of lift push rod (322), telescopic push rod (324) are fixed to be set up on lifter plate (323), expansion plate (325) are fixed to be set up on the output of telescopic push rod (324), drilling machine (33) are fixed to be set up on expansion plate (325).
CN202022432344.3U 2020-10-28 2020-10-28 Drilling device of gear box for extruder convenient to location Active CN213794351U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022432344.3U CN213794351U (en) 2020-10-28 2020-10-28 Drilling device of gear box for extruder convenient to location

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022432344.3U CN213794351U (en) 2020-10-28 2020-10-28 Drilling device of gear box for extruder convenient to location

Publications (1)

Publication Number Publication Date
CN213794351U true CN213794351U (en) 2021-07-27

Family

ID=76962452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022432344.3U Active CN213794351U (en) 2020-10-28 2020-10-28 Drilling device of gear box for extruder convenient to location

Country Status (1)

Country Link
CN (1) CN213794351U (en)

Similar Documents

Publication Publication Date Title
CN213794351U (en) Drilling device of gear box for extruder convenient to location
CN215146117U (en) High-precision robot back door welding fixture
CN218891524U (en) Cutter adjusting mechanism of horizontal milling machine
CN110449472A (en) A kind of macrotype axes series cross wedge rolling machine guide and guards
CN213256847U (en) Diode pin cutting device
CN213795834U (en) Grinding device of gear box for extruder convenient to adjust
CN212351239U (en) Integral type numerical control lathe main shaft
CN213999666U (en) Cutting device is used in circuit board processing
CN213437419U (en) Rocker milling machine for waveguide device
CN111482823A (en) High-precision numerical control lathe spindle
CN219563388U (en) Cutting device is used in circuit board processing convenient to adjust
CN118434011A (en) Processing equipment and manufacturing method for punching blind holes on PCB
CN218965266U (en) Operation table for manufacturing winding jig
CN220902342U (en) Frock clamp is used in welding of finish rolling machine spring shaft
CN218254014U (en) Drilling machine for machining
CN220680017U (en) Clamping and aligning mechanism of numerical control milling machine
CN218284656U (en) Lead screw machining device with clamping structure
CN221065244U (en) Fine tuning bearing mechanism of preassembled pre-tuning table
CN219805675U (en) Numerical control drilling and milling integrated machine
CN216919462U (en) Valve end cover processing equipment
CN220575151U (en) Auxiliary assembly device for aerospace parts
CN221247845U (en) Tool for boring piston rod head
CN218639901U (en) Multi-functional adjustable sword platform of rotary-cut equipment
CN115326622B (en) Power rod positioning assembly and use method thereof
CN213972247U (en) Adjustable injection seat of injection molding machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant