CN219153357U - Stone material cutting machine that dustproof effect is good - Google Patents

Stone material cutting machine that dustproof effect is good Download PDF

Info

Publication number
CN219153357U
CN219153357U CN202223361163.1U CN202223361163U CN219153357U CN 219153357 U CN219153357 U CN 219153357U CN 202223361163 U CN202223361163 U CN 202223361163U CN 219153357 U CN219153357 U CN 219153357U
Authority
CN
China
Prior art keywords
mounting
fixedly connected
cutting
dust
plate
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
CN202223361163.1U
Other languages
Chinese (zh)
Inventor
陈永还
吴解放
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.)
Fujian Province Fengshan Stone Group Co ltd
Original Assignee
Fujian Province Fengshan Stone Group 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 Fujian Province Fengshan Stone Group Co ltd filed Critical Fujian Province Fengshan Stone Group Co ltd
Priority to CN202223361163.1U priority Critical patent/CN219153357U/en
Application granted granted Critical
Publication of CN219153357U publication Critical patent/CN219153357U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model relates to a stone cutting machine with good dustproof effect, which comprises a cutting table and a mounting plate, wherein a mounting groove is formed in the top of the mounting plate, a steering assembly is arranged in the mounting groove and comprises a mounting rod, a hydraulic cylinder and two straight toothed plates, the mounting rod is rotationally connected between the front surface and the back surface of the inner wall of the mounting groove, the hydraulic cylinder is fixedly connected to the top of the mounting plate, two gears are fixedly connected to the outer surface of the mounting rod, the two straight toothed plates are both slidingly connected to the top of the mounting plate, a connecting column is driven to move left and right through the expansion and contraction of the hydraulic cylinder, the connecting column drives the two gears to rotate through the two straight toothed plates, so that the mounting rod is driven to rotate clockwise or anticlockwise, the mounting rod rotates to enable a fixing plate to rotate by taking the mounting rod as a rotating point, and the fixing plate drives a cutting mechanism to rotate, so that the inclination angle of a cutting knife is adjusted, stone can be cut at multiple angles, and the flexibility of equipment is improved.

Description

Stone material cutting machine that dustproof effect is good
Technical Field
The utility model relates to the technical field of cutting machines, in particular to a stone cutting machine with a good dustproof effect.
Background
The stone cutting machine is composed of a cutting knife set, a stone conveying table, a positioning guide plate and a frame, wherein the stone cutting machine is made of iron and suitable for dry cutting and wet cutting of various stones, building materials, ceramic tiles, granite, marble, cement boards, red bricks, refractory bricks and the like, and is a necessary edge tool for home decoration.
The current publication of a patent number is CN202020710968.4 discloses a dustproof cutting device of stone material processing, this dustproof cutting device of stone material processing is through rotating the turning block, thereby drive the slider and rotate in the ring channel, and then make the water of hose internal flow down by first apopore to slider at the flow direction shower nozzle, when rotating the turning block, the water flow has been increaseed, thereby can control the size that the water yield sprayed through rotating, evenly spray the dust, cool down, avoid cutting back cutting machine to take place high temperature damage, the life of cutting machine has been prolonged, the volume of turning up can dash away impurity. However, the cutting angle of the cutting mechanism in the publication is fixed, only the stone can be cut straight, and the angle of the cutting knife cannot be adjusted according to the requirement of stone edge cutting production, so that the flexibility of the equipment is insufficient.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the utility model provides the stone cutting machine with good dustproof effect, which flexibly adjusts the cutting angle of the cutting mechanism through the steering assembly and effectively improves the flexibility of equipment use.
The technical scheme adopted by the utility model is as follows: including cutting table and mounting panel, the mounting groove has been seted up at the top of mounting panel, the inside of mounting groove is provided with turns to the subassembly, turn to the subassembly including installation pole, pneumatic cylinder and two straight tooth boards, the installation pole rotate connect in between the front and the back of mounting groove inner wall, pneumatic cylinder fixed connection in the top of mounting panel, the surface fixedly connected with of installation pole two gears, two straight tooth boards equal sliding connection in the top of mounting panel, two fixedly connected with spliced pole between the top of straight tooth board, two the tooth face of straight tooth board respectively with two the top intermeshing of gear, the top of mounting panel is provided with dust removal subassembly.
Preferably, in order to absorb the dust that produces in the cutting clearance, the surface fixedly connected with fixed plate of installation pole, the left side of fixed plate is provided with cutting mechanism, dust removal subassembly includes rose box, air exhauster and dust absorption bucket, the rose box with equal fixed connection of air exhauster in the top of mounting panel.
Preferably, in order to drive the mounting panel to adjust to the interval at cutting bench top, the front of rose box is provided with the hose, dust absorption fill set up in the bottom of mounting panel, the top of mounting panel is provided with the steering subassembly, the steering subassembly includes hydro-cylinder, two connecting plates, sliding block and pivoted plate.
Preferably, in order to play a role in driving the dust suction hopper to rotate, the two connecting plates are fixedly connected to the bottom of the mounting plate, the two opposite sides of the two connecting plates are rotatably connected with the mounting shaft, the left side of the sliding block is fixedly connected with the connecting shaft, and the inside of the rotating plate is provided with the connecting groove.
Preferably, in order to play the effect of helping the cutting knife cooling in the cutting mechanism, connecting axle swing joint in the inside of spread groove, the top fixedly connected with water tank of mounting panel, the back of water tank is provided with the connecting pipe, the one end of connecting pipe is provided with the shower nozzle.
Preferably, in order to drive the cutting mechanism to move in the front-back horizontal direction, grooves are formed in two sides of the cutting table, screw rods are connected between the front face and the back face of the inner wall of each groove in a rotating mode, mounting seats are connected to the outer surfaces of the screw rods in a threaded mode, and lower oil cylinders are fixedly connected to the tops of the mounting seats.
Preferably, in order to realize that two lead screws simultaneously rotate in the same direction, two fixed sleeves are fixedly connected to the tops of the mounting seats, four lifting columns are slidably connected to the interiors of the fixed sleeves, and belt pulleys are fixedly connected to one ends of the two lead screws.
Preferably, in order to play the effect of recycling the water flow, the back of the cutting table is fixedly connected with a motor through a fixing frame, a plurality of through holes are formed in the top of the cutting table, a flow guide pipe is fixedly connected to the bottom of the cutting table, a connecting box is fixedly connected to the bottom of the flow guide pipe, and a filter screen plate and a quartz sand filter layer are respectively and slidably connected to the inside of the connecting box.
The beneficial effects of the utility model are as follows:
1. the connecting column is driven to move left and right through the expansion of the hydraulic cylinder, and the connecting column drives the two gears to rotate through the two straight toothed plates, so that the mounting rod is driven to rotate clockwise or anticlockwise, the mounting rod rotates to enable the fixing plate to rotate by taking the mounting rod as a rotating point, and the fixing plate drives the cutting mechanism to rotate, so that the inclination angle of the cutting knife is adjusted, stone materials can be cut at multiple angles, and the flexibility of equipment use is improved.
2. The sliding block is driven to slide on the mounting plate through the expansion of the oil cylinder, the sliding block drives the rotating plate to swing back and forth through the connecting shaft, the mounting shaft connected with the rotating plate is used as a rotating point to rotate when the rotating plate swings, the mounting shaft is driven to rotate, the mounting shaft drives the dust suction hopper to rotate, the direction of the opening of the dust suction hopper is regulated, the direction of the opening is regulated by the cutting movement direction of the dust suction hopper matched with the cutting mechanism, and the dust suction hopper is helped to absorb and clean powder dust generated during cutting.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model from the front.
Fig. 3 is a rear view of the present utility model.
Fig. 4 is an enlarged schematic view of the portion a of fig. 2 according to the present utility model.
Fig. 5 is an enlarged schematic view of the portion B of fig. 3 according to the present utility model.
Reference numerals illustrate: in the figure: 1. a cutting table; 2. a mounting plate; 3. a mounting groove; 4. a steering assembly; 401. a mounting rod; 402. a hydraulic cylinder; 403. a straight toothed plate; 404. a gear; 405. a connecting column; 5. a dust removal assembly; 501. a filter box; 502. an exhaust fan; 503. a dust collection hopper; 504. a hose; 6. a fixing plate; 7. a cutting mechanism; 8. a direction-adjusting component; 801. an oil cylinder; 802. a connecting plate; 803. a sliding block; 804. a rotating plate; 805. a mounting shaft; 806. a connecting shaft; 807. a connecting groove; 9. a water tank; 10. a connecting pipe; 11. a spray head; 12. a groove; 13. a screw rod; 14. a mounting base; 15. a lower oil cylinder; 16. fixing the sleeve; 17. lifting columns; 18. a belt pulley; 19. a motor; 20. a through hole; 21. a flow guiding pipe; 22. a connection box; 23. a filter screen plate; 24. and a quartz sand filter layer.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in the drawing, this embodiment provides a stone material cutting machine that dustproof effect is good, including cutting table 1 and mounting panel 2, mounting groove 3 has been seted up at the top of mounting panel 2, the inside of mounting groove 3 is provided with steering assembly 4, steering assembly 4 includes mounting bar 401, pneumatic cylinder 402 and two straight tooth boards 403, pneumatic cylinder 402 is connected through prior art and outside control switch, and the right side fixed connection of pneumatic cylinder 402 telescopic link, and the mounting bar 401 rotates and connects between the front and the back of mounting groove 3 inner wall, pneumatic cylinder 402 fixed connection is in the top of mounting panel 2, the surface fixed connection of mounting bar 401 has two gears 404, equal sliding connection of two straight tooth boards 403 is in the top of mounting panel 2, fixedly connected with spliced pole 405 between the top of two straight tooth boards 403, the tooth face of two straight tooth boards 403 respectively with the top intermeshing of two gears 404, the top of mounting panel 2 is provided with dust removal assembly 5, dust removal assembly 5 plays the effect of the dust absorption clearance that produces in with the cutting.
The surface fixedly connected with fixed plate 6 of installation pole 401, the left side of fixed plate 6 is provided with cutting mechanism 7, cutting mechanism 7 is prior art, by driving motor, the cutting knife, two belt fifth wheels and belt are constituteed, two belt fifth wheels are one fixed connection in the one end of driving motor output shaft, another fixed connection is in one side of cutting knife, the belt sets up between the surface of two belt fifth wheels, driving motor passes through two belt fifth wheels and belt drive cutting knife rotation cutting, dust collection subassembly 5 includes filter box 501, air exhauster 502 and dust absorption fill 503, the inside sliding connection of filter box 501 has the filter screen, the filter screen can be followed the filter box 501 top and taken out, the filter screen intercepts the dust, discharge clean air after the filter screen, filter box 501 and air exhauster 502 all fixed connection are in the top of mounting panel 2, air exhauster 502 is connected through prior art and external control switch, and air exhauster 502 air inlet end is linked together through pipeline 503 and filter box 501, the front of filter box 501 is provided with hose 504, the one end of hose 504 is linked together with the top of dust absorption fill 503, dust absorption fill setting up in the bottom of mounting panel 2, the mounting panel 2 sets up in the top of mounting panel 802, the setting up 8 to two side-to-side adjusting plate 803, the assembly is provided with 8, the connecting plate 803 is to the connecting plate 801, the assembly is rotated to the side of adjusting plate 803, the assembly is adjusted to the top to be adjusted to the top down.
The oil cylinder 801 is connected with an external control switch through the prior art, one end of an oil cylinder 801 telescopic rod and the back of a sliding block 803 are fixedly connected to the top of a mounting plate 2, the sliding block 803 is slidably connected to the top of the mounting plate 2, two connecting plates 802 are fixedly connected to the bottom of the mounting plate 2, one opposite sides of the two connecting plates 802 are rotatably connected with a mounting shaft 805, one end of the mounting shaft 805 on the left connecting plate 802 penetrates through and extends to the left side of the connecting plate 802, the penetrating part is rotatably connected, a rotating plate 804 is fixedly connected to the left end of the mounting shaft 805, a connecting shaft 806 is fixedly connected to the left side of the sliding block 803, a connecting groove 807 is formed in the rotating plate 804, the connecting shaft 806 is movably connected to the inside of the connecting groove 807, the top of the mounting plate 2 is fixedly connected with a water tank 9, the back of the water tank 9 is provided with a connecting pipe 10, one end of the connecting pipe 10 is provided with a spray head 11, the spray head 11 is fixedly connected to the back of the fixing plate 6 through a connecting frame, and the spray head 11 plays a role of cooling a cutting knife.
Grooves 12 are respectively arranged on two sides of the cutting table 1, screw rods 13 are respectively and rotatably connected between the front surfaces and the back surfaces of the inner walls of the two grooves 12, one ends of the two screw rods 13 respectively penetrate through and extend to the back surface of the cutting table 1, the penetrating parts are respectively and rotatably connected, mounting seats 14 are respectively and rotatably connected on the outer surfaces of the two screw rods 13, the two mounting seats 14 are respectively and slidably connected on the inner walls of the two grooves 12, lower cylinders 15 are respectively and fixedly connected on the tops of the two mounting seats 14, the two lower cylinders 15 are respectively and fixedly connected with an external control switch through the prior art, one ends of telescopic rods of the two lower cylinders 15 are respectively and fixedly connected with the bottom of a mounting plate 2, the telescopic rods of the lower cylinders 15 drive the mounting plate 2 to adjust the distance between the tops of the cutting table 1, the tops of the two mounting seats 14 are respectively and fixedly connected with two fixing sleeves 16, the inside of the four fixed sleeves 16 is connected with lifting columns 17 in a sliding manner, the mounting plate 2 is fixedly connected between the top ends of the four lifting columns 17, one ends of the two screw rods 13 are fixedly connected with belt pulleys 18, belt rings are arranged between the outer surfaces of the two belt pulleys 18, the back surface of the cutting table 1 is fixedly connected with a motor 19 through a fixing frame, the motor 19 is connected with an external control switch through the prior art, one end of an output shaft of the motor 19 is fixedly connected with one end of one screw rod 13, the top of the cutting table 1 is provided with a plurality of through holes 20, the through holes 20 are used for guiding and filtering liquid sprayed by the spray heads 11 on the cutting knife, the liquid is prevented from being accumulated at the top of the cutting table 1, the bottom of the cutting table 1 is fixedly connected with a guide pipe 21, the bottom of the guide pipe 21 is fixedly connected with a connecting box 22, one side of the connecting box 22 is provided with a discharge pipe, the inside of the discharge pipe is provided with a valve, the inside of the connection box 22 is respectively connected with a filter screen plate 23 and a quartz sand filter layer 24 in a sliding manner, and the filter screen plate 23 and the quartz sand filter layer 24 are used for filtering sprayed liquid for recycling.
The utility model is used when: placing the cutting bench 1 top with the stone material, flexible drive mounting panel 2 lift through lower hydro-cylinder 15 to this drives cutting mechanism 7 and adjusts the interval to the stone material and cut the stone material of different thickness, drive the belt pulley 18 that is connected with it through starter motor 19 and rotate, this belt pulley 18 passes through the belt and drives another belt pulley 18 rotation, two belt pulleys 18 drive lead screw 13 simultaneously and rotate, so make two mount pads 14 remove simultaneously, with this drive cutting mechanism 7 remove on the stone material and cut it, the cutting in-process opens shower nozzle 11, shower nozzle 11 spouts the water source in the water tank 9 to the surface of cutting knife, help the cutting knife cooling, prevent the overheated reduction life of cutting knife.
The connecting column 405 is driven to move left and right through the expansion and contraction of the hydraulic cylinder 402, the connecting column 405 drives the two straight toothed plates 403 to move left and right, the toothed wheels 404 are respectively driven to rotate through meshed toothed teeth when the straight toothed plates 403 move, the two toothed wheels 404 drive the mounting rod 401 to rotate clockwise or anticlockwise, the mounting rod 401 rotates to enable the fixing plate 6 to rotate by taking the mounting rod 401 as a rotating point, and the fixing plate 6 drives the cutting mechanism 7 to rotate, so that the inclination angle of the cutting knife is adjusted, and the flexibility of equipment use is improved.
The sliding block 803 is driven to slide on the mounting plate 2 through the expansion and contraction of the oil cylinder 801, the sliding block 803 drives the connecting shaft 806 to slide together with the sliding block, the connecting shaft 806 slides in the connecting groove 807 at the same time, so that the rotating plate 804 drives the rotating plate 804 to swing back and forth, the mounting shaft 805 connected with the rotating plate 804 is used as a rotating point to rotate when the rotating plate 804 swings, the mounting shaft 805 is driven to rotate, the mounting shaft 805 drives the dust suction hopper 503 to rotate, the direction of the opening of the dust suction hopper 503 is regulated, the direction of the opening is regulated by the cutting movement direction of the dust suction hopper 503 matched with the cutting mechanism 7, and the dust generated during cutting is effectively absorbed and cleaned.
While the basic principles and main features of the utility model and advantages of the utility model have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a dustproof effectual stone material cutting machine, includes cutting table (1) and mounting panel (2), its characterized in that: mounting groove (3) have been seted up at the top of mounting panel (2), the inside of mounting groove (3) is provided with turns to subassembly (4), turn to subassembly (4) including installation pole (401), pneumatic cylinder (402) and two straight tooth board (403), installation pole (401) rotate connect in between the front and the back of mounting groove (3) inner wall, pneumatic cylinder (402) fixed connection in the top of mounting panel (2), the surface fixedly connected with of installation pole (401) two gears (404), two straight tooth board (403) all sliding connection in the top of mounting panel (2), two fixedly connected with spliced pole (405) between the top of straight tooth board (403), two tooth faces of straight tooth board (403) respectively with the top intermeshing of gear (404), the top of mounting panel (2) is provided with dust removal subassembly (5).
2. The dust-proof stone cutter of claim 1, wherein: the utility model discloses a dust removal device, including installation pole (401), surface fixedly connected with fixed plate (6), the left side of fixed plate (6) is provided with cutting mechanism (7), dust removal subassembly (5) are including rose box (501), air exhauster (502) and dust absorption fill (503), rose box (501) with equal fixed connection of air exhauster (502) in the top of mounting panel (2).
3. The dustproof stone cutter of claim 2, wherein: the front of rose box (501) is provided with hose (504), dust absorption fill (503) set up in the bottom of mounting panel (2), the top of mounting panel (2) is provided with steering assembly (8), steering assembly (8) include hydro-cylinder (801), two connecting plates (802), sliding block (803) and rotor plate (804).
4. A dust-proof stone cutter according to claim 3, wherein: two connecting plates (802) are fixedly connected to the bottom of the mounting plate (2), one sides, opposite to the two connecting plates (802), of the two connecting plates are rotatably connected with a mounting shaft (805), the left side of a sliding block (803) is fixedly connected with a connecting shaft (806), and a connecting groove (807) is formed in the rotating plate (804).
5. The dust-proof stone cutter of claim 4, wherein: the connecting shaft (806) is movably connected to the inside of the connecting groove (807), the top of the mounting plate (2) is fixedly connected with the water tank (9), the back of the water tank (9) is provided with the connecting pipe (10), and one end of the connecting pipe (10) is provided with the spray head (11).
6. The dust-proof stone cutter of claim 1, wherein: the cutting table is characterized in that grooves (12) are formed in two sides of the cutting table (1), screw rods (13) are rotatably connected between the front face and the back face of the inner wall of each groove (12), mounting seats (14) are connected to the outer surfaces of the screw rods (13) in a threaded mode, and lower oil cylinders (15) are fixedly connected to the tops of the mounting seats (14).
7. The dust-proof stone cutter of claim 6, wherein: two fixed sleeves (16) are fixedly connected to the tops of the two mounting seats (14), lifting columns (17) are slidably connected to the interiors of the four fixed sleeves (16), and belt pulleys (18) are fixedly connected to one ends of the two screw rods (13).
8. The dust-proof stone cutter of claim 1, wherein: the back of cutting board (1) is through mount fixedly connected with motor (19), a plurality of through-hole (20) have been seted up at the top of cutting board (1), the bottom fixedly connected with honeycomb duct (21) of cutting board (1), the bottom fixedly connected with spread spectrum duct (21) link box (22), the inside of link box (22) is sliding connection respectively has filter screen plate (23) and quartz sand filter layer (24).
CN202223361163.1U 2022-12-15 2022-12-15 Stone material cutting machine that dustproof effect is good Active CN219153357U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223361163.1U CN219153357U (en) 2022-12-15 2022-12-15 Stone material cutting machine that dustproof effect is good

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223361163.1U CN219153357U (en) 2022-12-15 2022-12-15 Stone material cutting machine that dustproof effect is good

Publications (1)

Publication Number Publication Date
CN219153357U true CN219153357U (en) 2023-06-09

Family

ID=86616472

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223361163.1U Active CN219153357U (en) 2022-12-15 2022-12-15 Stone material cutting machine that dustproof effect is good

Country Status (1)

Country Link
CN (1) CN219153357U (en)

Similar Documents

Publication Publication Date Title
CN111975616B (en) Coal mining machine walking box polishing device convenient to use and use method
CN110773519B (en) Dust collector for machining and dust collection structure thereof
CN110238762B (en) Green sand blasting machine that product preparation matte was used
CN110434709B (en) A grinding device for boron nitride crucible
CN113664297B (en) Hobbing cutter machine for processing communication electronic materials
CN219153357U (en) Stone material cutting machine that dustproof effect is good
CN113445457A (en) Municipal engineering step cleaning device and using method thereof
CN208992350U (en) A kind of handware production surface burr remover
CN212420392U (en) Power takeoff shell perforating device
CN218110338U (en) Grinding machine with adjustable height
CN112643470B (en) Multi-station grinding tool machining device capable of removing dust
CN216329232U (en) Dust-free cutting device capable of reducing air pollution for ceramic tile production
CN215317872U (en) Finishing structure for processing circuit board
CN210939967U (en) Ceramic tile cutting device for architectural decoration engineering
CN209868258U (en) Sweep ray apparatus
CN214817804U (en) Be applied to flat grinder's dust treatment device
CN211807092U (en) Scribing machine for producing OLED display screen
CN213563335U (en) Ceramic machining is with throwing glaze machine
CN219132699U (en) Trimming mechanism for zirconia ceramic blank
CN108818280A (en) A kind of assembly mobile concrete polishing machine for building
CN219299531U (en) Air compressor for conical cement pole processing
CN2621110Y (en) Ceramic grinding machine
CN219504381U (en) Marble Dan Maobian grinding device
CN220561882U (en) Water permeable brick production equipment
CN217317417U (en) Dustproof timber grinding machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant