CN214080950U - Shot blasting machine - Google Patents

Shot blasting machine Download PDF

Info

Publication number
CN214080950U
CN214080950U CN202022998507.4U CN202022998507U CN214080950U CN 214080950 U CN214080950 U CN 214080950U CN 202022998507 U CN202022998507 U CN 202022998507U CN 214080950 U CN214080950 U CN 214080950U
Authority
CN
China
Prior art keywords
fixedly connected
box
wall
collecting box
rotating shaft
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
CN202022998507.4U
Other languages
Chinese (zh)
Inventor
张九和
胡启成
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.)
Jinan Laiwu Jiuxin Auto Parts Co ltd
Original Assignee
Jinan Laiwu Jiuxin Auto Parts 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 Jinan Laiwu Jiuxin Auto Parts Co ltd filed Critical Jinan Laiwu Jiuxin Auto Parts Co ltd
Priority to CN202022998507.4U priority Critical patent/CN214080950U/en
Application granted granted Critical
Publication of CN214080950U publication Critical patent/CN214080950U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

The utility model discloses a shot blasting machine, including crushed aggregates collecting box and frame, fixedly connected with filter screen between the center at both ends around the crushed aggregates collecting box inner wall, the rear end fixedly connected with of crushed aggregates collecting box throws the ball collecting box, throw the first transmission case of bottom fixedly connected with of ball collecting box, the center of first transmission case is provided with first axis of rotation, the first spiral leaf of outer wall fixedly connected with of first axis of rotation, the first motor corresponding with first axis of rotation is installed at the center of crushed aggregates collecting box bottom rear end. The utility model discloses in, the device simple structure, convenient and practical is through the simple crushed aggregates collecting box of design and filter screen to can filter impurity such as produced great dust in the device course of the work and broken ball sand totally, thereby play the guard action well to the impeller head, thereby improved the device's work efficiency greatly.

Description

Shot blasting machine
Technical Field
The utility model relates to a polishing descaling machine technical field especially relates to a shot blasting descaling machine.
Background
The shot blasting machine can clean structural members, section steel and structural members with reasonable sizes at one time, can remove corrosion on the surfaces of workpieces, clean welding slag on the structural members, eliminate welding stress of the workpieces, improve the fatigue resistance of the workpieces, increase the adhesive force of paint films of the workpieces during paint spraying, and finally achieve the purpose of improving the surface and internal quality.
However, after the currently used shot blasting machine cleans the surface of a workpiece, the cleaned iron rust, impurities and broken shot sand can be conveyed to the shot blasting machine along with the intact shot sand, so that the working efficiency of the shot blasting machine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a shot blasting machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a shot blasting machine comprises a crushed aggregate collecting box and a frame, wherein a filter screen is fixedly connected to the center between the front end and the rear end of the inner wall of the crushed aggregate collecting box, the shot blasting collecting box is fixedly connected to the rear end of the crushed aggregate collecting box, a first conveying box is fixedly connected to the bottom of the shot blasting collecting box, a first rotating shaft is arranged at the center of the first conveying box, a first spiral blade is fixedly connected to the outer wall of the first rotating shaft, and a first motor corresponding to the first rotating shaft is mounted at the center of the rear end of the bottom of the crushed aggregate collecting box;
the rear end of the first material conveying box is fixedly connected with a second material conveying box, the bottom and the top between two sides of the inner wall of the second material conveying box are respectively and rotatably connected with a second rotating shaft and a third rotating shaft, the outer walls of the second rotating shaft and the third rotating shaft are both fixedly connected with conveying wheels, a conveying belt is sleeved between the outer walls of the two conveying wheels, the outer wall of the conveying belt is fixedly connected with a plurality of feeding hoppers, and the top of one side of the outer wall of the second material conveying box is provided with a second motor corresponding to the third rotating shaft;
the top of the front end of the second material conveying box is fixedly connected with a third material conveying box, the front end of the inner wall of the third material conveying box is provided with a third motor, one end of an output shaft of the third motor is fixedly connected with a fourth rotating shaft, the outer wall of the fourth rotating shaft is fixedly connected with a second spiral blade, and the center of the bottom of the third material conveying box is fixedly connected with a material conveying hopper;
a plurality of fifth rotating shafts are respectively and rotatably connected between the front end and the rear end of the inner wall of the frame, the rear ends and the front ends of the outer walls of the fifth rotating shafts are fixedly connected with a first gear and a roller, a fourth motor is installed on one side of the rear end of the inner wall of the frame, an output shaft of the fourth motor is fixedly connected with a second gear, a third gear is rotatably connected to one side of the rear end of the inner wall of the frame, which is far away from the fourth motor, and a chain corresponding to the plurality of first gears is sleeved between the second gear and the outer wall of the third gear;
the equal fixedly connected with limiting plate in both ends around the frame top, two one side fixedly connected with brush strip between the limiting plate inner wall, the top fixedly connected with sound-proof box of frame, the impeller head corresponding with biography hopper is installed at the center at sound-proof box top, the air exhauster is installed at the center of sound-proof box front end, the central fixedly connected with of frame front end and the corresponding case that gathers dust of air exhauster, the central fixedly connected with screen cloth between the inner wall front and back both ends of the case that gathers dust.
As a further description of the above technical solution:
the tops of the crushed aggregate collecting box and the shot blasting collecting box are fixedly connected with the center of the bottom of the frame.
As a further description of the above technical solution:
the top of the rear end of the crushed aggregate collecting box is communicated with the top of the front end of the shot blasting collecting box.
As a further description of the above technical solution:
the front end fixedly connected with between the both sides of third biography workbin inner wall has the baffle corresponding with the third motor, the through-hole has been seted up at the center of baffle front end, just the fourth axis of rotation runs through the through-hole.
As a further description of the above technical solution:
and a support rod is fixedly connected between the front end of the bottom of the third material conveying box and the top of the sound insulation box.
As a further description of the above technical solution:
the bottom of the front end of the dust collection box is provided with an air outlet.
The utility model discloses following beneficial effect has: 1. the utility model provides a pair of shot blasting machine compares with traditional device, the device simple structure, convenient and practical through the simple crushed aggregates collecting box of design and filter screen to can filter impurity such as produced great dust in the device course of the work and broken ball sand totally, thereby play the guard action well to the impeller head, thereby improved the device's work efficiency greatly.
2. Compared with the traditional device, the device has the advantages that the structure and the design are greatly innovated and improved, the shot blasting machine is further provided with the sound insulation box, so that the noise pollution of the device during working can be reduced, the exhaust fan and the dust collection box are also arranged, the dust in a working area can be thoroughly cleaned during working of the device, and the working quality of the device is greatly improved.
Drawings
Fig. 1 is a main view structure diagram of a shot blasting machine provided by the utility model;
fig. 2 is a side sectional structure view of the shot blasting machine provided by the utility model;
fig. 3 is a schematic view of the chain drive of fig. 1 in its installed position.
Illustration of the drawings:
1. a crushed aggregate collecting box; 2. a frame; 3. a filter screen; 4. a shot blasting collection box; 5. a first material conveying box; 6. a first rotating shaft; 7. a first helical blade; 8. a first motor; 9. a second material conveying box; 10. a second rotating shaft; 11. a third rotating shaft; 12. a transfer wheel; 13. a conveyor belt; 14. a hopper; 15. a second motor; 16. a third material conveying box; 17. a third motor; 18. a fourth rotating shaft; 19. a second helical blade; 20. a material conveying hopper; 21. a fifth rotating shaft; 22. a first gear; 23. a roller; 24. a fourth motor; 25. a second gear; 26. a third gear; 27. a chain; 28. a limiting plate; 29. a brush bar; 30. a sound insulation box; 31. a shot blasting machine; 32. an exhaust fan; 33. a dust collection box; 34. and (4) screening.
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.
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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated 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. 1-3, the present invention provides an embodiment:
a shot blasting machine comprises a crushed aggregate collecting box 1 and a frame 2, wherein a filter screen 3 is fixedly connected to the center between the front end and the rear end of the inner wall of the crushed aggregate collecting box 1, the filter screen 3 can filter impurities and crushed shot sand generated in the cleaning process of the shot blasting machine into the crushed aggregate collecting box 1, so that the shot blasting machine 31 is protected, the working quality of the shot blasting machine is improved, the rear end of the crushed aggregate collecting box 1 is fixedly connected with a shot blasting collecting box 4, the bottom of the shot blasting collecting box 4 is fixedly connected with a first transmission box 5, the center of the first transmission box 5 is provided with a first rotating shaft 6, the outer wall of the first rotating shaft 6 is fixedly connected with a first spiral blade 7, a first motor 8 corresponding to the first rotating shaft 6 is installed at the center of the rear end of the bottom of the crushed aggregate collecting box 1, after the first motor 8 is started, an output shaft of the first rotating shaft drives the first rotating shaft 6 to rotate, so that the first rotating shaft 6 drives the first spiral blade 7 to rotate, thereby transferring the pellets from the first transfer box 5 to the second transfer box 9;
the rear end of the first material conveying box 5 is fixedly connected with a second material conveying box 9, the bottom and the top between two sides of the inner wall of the second material conveying box 9 are respectively and rotatably connected with a second rotating shaft 10 and a third rotating shaft 11, the outer walls of the second rotating shaft 10 and the third rotating shaft 11 are respectively and fixedly connected with a conveying wheel 12, a plurality of feeding hoppers 14 are fixedly connected to the outer wall of a conveying belt 13 sleeved between the outer walls of the two conveying wheels 12, a second motor 15 corresponding to the third rotating shaft 11 is installed at the top of one side of the outer wall of the second material conveying box 9, after the second motor 15 is started, an output shaft of the second motor drives the third rotating shaft 11 to rotate, so that the third rotating shaft 11 drives the conveying belt 13 to rotate through the two conveying wheels 12, the conveying belt 13 drives the plurality of feeding hoppers 14 to move, and then the shot sand is conveyed into the third material conveying box 16 from the bottom of the second material conveying box 9;
the top of the front end of the second material conveying box 9 is fixedly connected with a third material conveying box 16, the front end of the inner wall of the third material conveying box 16 is provided with a third motor 17, one end of an output shaft of the third motor 17 is fixedly connected with a fourth rotating shaft 18, the outer wall of the fourth rotating shaft 18 is fixedly connected with a second spiral blade 19, the center of the bottom of the third material conveying box 16 is fixedly connected with a material conveying hopper 20, after the third motor 17 is started, the output shaft of the third motor drives the fourth rotating shaft 18 to rotate, so that the fourth rotating shaft 18 drives the second spiral blade 19 to rotate, and therefore the shot sand conveyed by the feeding hopper 14 is conveyed into the material conveying hopper 20;
a plurality of fifth rotating shafts 21 are respectively and rotatably connected between the front end and the rear end of the inner wall of the frame 2, the rear end and the front end of the outer wall of each fifth rotating shaft 21 are fixedly connected with a first gear 22 and a roller 23, a fourth motor 24 is installed on one side of the rear end of the inner wall of the frame 2, an output shaft of the fourth motor 24 is fixedly connected with a second gear 25, one side of the rear end of the inner wall of the frame 2, which is far away from the fourth motor 24, is rotatably connected with a third gear 26, chains 27 corresponding to the plurality of first gears 22 are sleeved between the outer walls of the second gear 25 and the third gear 26, when the fourth motor 24 is started, the output shaft thereof drives the second gear 25 to rotate, so that the second gear 25 drives the chains 27 to rotate through the third gear 26, so that the chains 27 drive the plurality of first gears 22 to rotate, so that the plurality of first gears 22 drive the plurality of rollers 23 to rotate through the plurality of fifth rotating shafts 21, thereby conveying the component to a working area, after cleaning, the component can be conveyed out;
the front end and the rear end of the top of the frame 2 are fixedly connected with a limiting plate 28, the limiting plate 28 can prevent parts from separating from the roller 23 in the conveying process, one side between the inner walls of the two limiting plates 28 is fixedly connected with a brush strip 29, the brush strip 29 can not only clean impurities such as dust and the like remained on the parts, but also can sweep shot sand onto the lower filter screen 3 for processing, the top of the frame 2 is fixedly connected with a sound insulation box 30, the sound insulation box 30 can play a role of reducing noise pollution when the device works, the center of the top of the sound insulation box 30 is provided with a shot blasting device 31 corresponding to the material conveying hopper 20, the center of the front end of the sound insulation box 30 is provided with an exhaust fan 32, the center of the front end of the frame 2 is fixedly connected with a dust collection box 33 corresponding to the exhaust fan 32, the center between the front end and the rear end of the inner wall of the dust collection box 33 is fixedly connected with a screen 34, and the dust collection device is composed of the exhaust fan 32 and the dust collection box 33, the suspended dust generated when the device is operated can be collected, thereby greatly improving the working quality of the device, wherein the screen 34 can filter the dust, thereby preventing the excessive dust from being discharged from the air outlet.
The tops of the crushed aggregates collecting box 1 and the shot blasting collecting box 4 are fixedly connected with the center of the bottom of the frame 2.
The top of the rear end of the crushed aggregate collecting box 1 and the top of the front end of the shot blasting collecting box 4 are communicated with each other.
The front end between the two sides of the inner wall of the third material conveying box 16 is fixedly connected with a baffle corresponding to the third motor 17, the baffle can prevent shot sand from damaging the third motor 17, a through hole is formed in the center of the front end of the baffle, and the fourth rotating shaft 18 penetrates through the through hole.
A support bar is fixedly connected between the front end of the bottom of the third material conveying box 16 and the top of the sound insulation box 30, and the support bar plays a role in supporting the third material conveying box 16.
The bottom of the front end of the dust collection box 33 is provided with an air outlet.
The working principle is as follows: the utility model provides a shot blasting machine has great improvement innovation with traditional device, when using this kind of shot blasting machine, at first start impeller 31, then start first motor 8, its output shaft drives first axis of rotation 6 and rotates, thereby first axis of rotation 6 will be transmitted from first transfer case 5 to second transfer case 9 through first helical blade 7 from pellet sand, then start second motor 15, its output shaft drives third axis of rotation 11 and rotates, thereby third axis of rotation 11 drives a plurality of hopper 14 through two transfer wheel 12 and conveyer belt 13 and moves, thereby convey pellet sand to third transfer case 16 from the bottom of second transfer case 9, then start third motor 17, its output shaft drives fourth axis of rotation 18 and rotates, thereby fourth axis of rotation 18 will be conveyed the pellet sand that comes from hopper 14 to in the hopper 20 through second helical blade 19, then shot sand enters the shot blasting machine 31, then the parts to be cleaned are placed on the rollers 23, then the fourth motor 24 is started, the output shaft of the fourth motor drives the second gear 25 to rotate, so that the second gear 25 drives the chain 27 to rotate through the third gear 26, so that the chain 27 drives the first gears 22 to rotate, so that the first gears 22 drive the rollers 23 to rotate through the fifth rotating shafts 21, so that the parts are conveyed to a working area to be cleaned, meanwhile, the dust removing device consisting of the exhaust fan 32 and the dust collecting box 33 can collect suspended dust generated during the operation of the device, so that the working quality of the device is greatly improved, wherein the screen 34 can filter the dust, so that excessive dust is prevented from being discharged from an air outlet, wherein the filter screen 3 can filter impurities and crushed shot sand generated during the cleaning process of the shot blasting machine into the crushed material collecting box 1, thereby play the effect of protection impeller head 31 to improve the device's operating mass, brush strip 29 both can clear up the impurity such as dust that remains on the part, can also sweep the ball sand to the filter screen 3 of below and handle simultaneously, sound-proof box 30 can play the effect that reduces the noise pollution of the device during operation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a shot blasting machine, includes crushed aggregates collecting box (1) and frame (2), its characterized in that: a filter screen (3) is fixedly connected to the center between the front end and the rear end of the inner wall of the crushed aggregate collecting box (1), a shot blasting collecting box (4) is fixedly connected to the rear end of the crushed aggregate collecting box (1), a first conveying box (5) is fixedly connected to the bottom of the shot blasting collecting box (4), a first rotating shaft (6) is arranged at the center of the first conveying box (5), a first spiral blade (7) is fixedly connected to the outer wall of the first rotating shaft (6), and a first motor (8) corresponding to the first rotating shaft (6) is mounted at the center of the rear end of the bottom of the crushed aggregate collecting box (1);
the rear end of the first material conveying box (5) is fixedly connected with a second material conveying box (9), the bottom and the top between the two sides of the inner wall of the second material conveying box (9) are respectively and rotatably connected with a second rotating shaft (10) and a third rotating shaft (11), the outer walls of the second rotating shaft (10) and the third rotating shaft (11) are respectively and fixedly connected with conveying wheels (12), a conveying belt (13) is sleeved between the outer walls of the two conveying wheels (12), the outer wall of the conveying belt (13) is fixedly connected with a plurality of feeding hoppers (14), and the top of one side of the outer wall of the second material conveying box (9) is provided with a second motor (15) corresponding to the third rotating shaft (11);
the top of the front end of the second material conveying box (9) is fixedly connected with a third material conveying box (16), the front end of the inner wall of the third material conveying box (16) is provided with a third motor (17), one end of an output shaft of the third motor (17) is fixedly connected with a fourth rotating shaft (18), the outer wall of the fourth rotating shaft (18) is fixedly connected with a second spiral blade (19), and the center of the bottom of the third material conveying box (16) is fixedly connected with a material conveying box (20);
a plurality of fifth rotating shafts (21) are respectively and rotatably connected between the front end and the rear end of the inner wall of the frame (2), the rear ends and the front ends of the outer walls of the fifth rotating shafts (21) are fixedly connected with first gears (22) and rollers (23), a fourth motor (24) is installed on one side of the rear end of the inner wall of the frame (2), an output shaft of the fourth motor (24) is fixedly connected with a second gear (25), one side of the rear end of the inner wall of the frame (2), which is far away from the fourth motor (24), is rotatably connected with a third gear (26), and chains (27) corresponding to the first gears (22) are sleeved between the outer walls of the second gear (25) and the third gear (26);
equal fixedly connected with limiting plate (28) in both ends around frame (2) top, two one side fixedly connected with brush strip (29) between limiting plate (28) inner wall, top fixedly connected with sound-proof box (30) of frame (2), impeller head (31) corresponding with biography hopper (20) are installed at the center at sound-proof box (30) top, air exhauster (32) are installed at the center of sound-proof box (30) front end, the central fixedly connected with and the corresponding collection case (33) of air exhauster (32) of frame (2) front end, central fixedly connected with screen cloth (34) between the inner wall front and back both ends of collection case (33).
2. A blast cleaning machine according to claim 1, characterized in that: the tops of the crushed aggregate collecting box (1) and the shot blasting collecting box (4) are fixedly connected with the center of the bottom of the frame (2).
3. A blast cleaning machine according to claim 1, characterized in that: the top of the rear end of the crushed aggregate collecting box (1) is communicated with the top of the front end of the shot blasting collecting box (4).
4. A blast cleaning machine according to claim 1, characterized in that: the front end between the two sides of the inner wall of the third material conveying box (16) is fixedly connected with a baffle corresponding to the third motor (17), a through hole is formed in the center of the front end of the baffle, and the fourth rotating shaft (18) penetrates through the through hole.
5. A blast cleaning machine according to claim 1, characterized in that: a support rod is fixedly connected between the front end of the bottom of the third material conveying box (16) and the top of the sound insulation box (30).
6. A blast cleaning machine according to claim 1, characterized in that: the bottom of the front end of the dust collection box (33) is provided with an air outlet.
CN202022998507.4U 2020-12-15 2020-12-15 Shot blasting machine Active CN214080950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022998507.4U CN214080950U (en) 2020-12-15 2020-12-15 Shot blasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022998507.4U CN214080950U (en) 2020-12-15 2020-12-15 Shot blasting machine

Publications (1)

Publication Number Publication Date
CN214080950U true CN214080950U (en) 2021-08-31

Family

ID=77428720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022998507.4U Active CN214080950U (en) 2020-12-15 2020-12-15 Shot blasting machine

Country Status (1)

Country Link
CN (1) CN214080950U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116587178A (en) * 2023-06-08 2023-08-15 江苏兴华胶带股份有限公司 High-efficient wire rod shot-blasting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116587178A (en) * 2023-06-08 2023-08-15 江苏兴华胶带股份有限公司 High-efficient wire rod shot-blasting machine
CN116587178B (en) * 2023-06-08 2023-12-05 江苏兴华胶带股份有限公司 High-efficient wire rod shot-blasting machine

Similar Documents

Publication Publication Date Title
CN107252805B (en) Tank cleaning machine
CN214080950U (en) Shot blasting machine
CN210476498U (en) Grinder is used in plank production with saw-dust collection device
CN109533878A (en) Sandstone conveyer belt
CN211540877U (en) Environment-friendly shot blasting machine
CN109008816B (en) Efficient and environment-friendly machining scrap treatment equipment
CN218856653U (en) Outer wall shot blasting device for large-diameter steel pipe
CN115283393B (en) Environment-friendly dust removal device for barite powder processing and crushing device
CN216098383U (en) Shot blasting machine for derusting
CN215748054U (en) Chip cleaner cleaning device with anti-blocking function
CN214110079U (en) Crawler-type shot blasting machine for processing water-heating hardware fittings
CN212918989U (en) Improved shot blasting machine with high cleaning efficiency
CN214292650U (en) Energy-saving shot blasting machine for castings
CN214323041U (en) Panel preliminary treatment shot-blast cleaning equipment
CN210307375U (en) Shot blasting rust removal equipment
CN207736136U (en) A kind of shot-blasting machine
CN112428154A (en) Panel preliminary treatment shot-blast cleaning equipment
CN216727383U (en) A polishing equipment for rice processing
CN210704346U (en) Shot sand collecting mechanism of shot blasting machine
CN218697721U (en) Discharging mechanism of shot blasting machine
CN219335173U (en) Nut processing unloader
CN218308511U (en) Full-automatic conveyer belt type iron remover
CN211805597U (en) Shot blasting machine for producing automobile parts
CN219685137U (en) Purging device for preventing pill from being pressed in
CN215390595U (en) Workpiece screening device for high-speed centrifugal grinder

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant