CN214864907U - Large-flow double-liquid dynamic mixing rubber valve - Google Patents

Large-flow double-liquid dynamic mixing rubber valve Download PDF

Info

Publication number
CN214864907U
CN214864907U CN202120120172.8U CN202120120172U CN214864907U CN 214864907 U CN214864907 U CN 214864907U CN 202120120172 U CN202120120172 U CN 202120120172U CN 214864907 U CN214864907 U CN 214864907U
Authority
CN
China
Prior art keywords
fixedly connected
mixing
glue
sealing
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
CN202120120172.8U
Other languages
Chinese (zh)
Inventor
黄友林
黄振森
李文晖
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.)
Shenzhen Yikai Technology Co ltd
Original Assignee
Shenzhen Yikai Technology 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 Shenzhen Yikai Technology Co ltd filed Critical Shenzhen Yikai Technology Co ltd
Priority to CN202120120172.8U priority Critical patent/CN214864907U/en
Application granted granted Critical
Publication of CN214864907U publication Critical patent/CN214864907U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model provides a large-traffic biliquid developments are mixed and are glued valve belongs to and mix gluey valve technical field, and this large-traffic biliquid developments are mixed gluey valve is including mixing the head, mix the top fixedly connected with motor mount pad of head, the top fixedly connected with motor of motor mount pad, the output shaft fixedly connected with shaft coupling of motor, the inside swing joint of motor mount pad has the (mixing) shaft, the bearing has been cup jointed in the outside of (mixing) shaft, the outside of (mixing) shaft is equipped with the parallel key. This high-flow biliquid developments mix gluey valve adopts compressed air and solenoid valve control piston rod reciprocating motion's mode to reach the purpose of switch, advances the glue joint and is connected with the delivery glue with the high-pressure line for the measuring pump export, and glue enters into the mixing cover through the cylinder runner, and the motor starts, and the motor drives stirring vane high-speed rotatory, makes and glues the intensive mixing with A glue and B, prevents that glue from mixing inhomogeneous, avoids glue drying time overlength, has guaranteed the result of use of glue.

Description

Large-flow double-liquid dynamic mixing rubber valve
Technical Field
The utility model belongs to the technical field of mix the gluey valve, concretely relates to large-traffic biliquid developments mix gluey valve.
Background
In the assembly industry of computers, mobile phones and the like, a plurality of independent parts need to be bonded or sealed by glue, generally, the glue is mixed and dispensed, the mixed glue is the glue which is separately stored in two independent modes of glue A and glue B, and the glue A and the glue B are mixed by a static mixing pipe or other modes according to a specified proportion and then are bonded when in use.
The valve is glued in current mixture makes glue mix inhomogeneous at the use for the dry time of glue is longer, influences the result of use of glue, and current mixture is glued the valve and is not convenient for clean, mixes the inside glue of intraduct and takes place the reaction solidification easily, with the pipe blockage, is unfavorable for using widely.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-traffic biliquid developments are mixed and are glued the valve, aim at solving and mix among the prior art and glue the valve glue and mix the problem inhomogeneous and clean inconvenient.
In order to achieve the above object, the utility model provides a following technical scheme: the high-flow double-liquid dynamic mixing rubber valve comprises a mixing head, wherein a motor mounting seat is fixedly connected to the top of the mixing head, a motor is fixedly connected to the top of the motor mounting seat, a shaft coupler is fixedly connected to an output shaft of the motor, a stirring shaft is movably connected to the inside of the motor mounting seat, a bearing is sleeved on the outer side of the stirring shaft, a flat key is arranged on the outer side of the stirring shaft, a bearing cover is arranged at one end of the bearing, a first snap spring is arranged at one end of the stirring shaft, a rotary universal plug seal is arranged at the other end of the stirring shaft, a mixing sleeve is fixedly connected to the bottom of the mixing head, a stirring blade is movably connected to the inside of the mixing sleeve, a nut is fixedly connected to one end of the stirring blade, a second sealing gasket is arranged at one end of the nut, a second snap spring is arranged at one side of the second sealing gasket, and a rubber outlet head is fixedly connected to the bottom of the mixing sleeve, the bottom of the glue outlet head is provided with a glue outlet joint, two sides of the mixing head are fixedly connected with a glue valve mounting seat, one side of the glue valve mounting seat is fixedly connected with a cavity, the inside of the cavity is fixedly connected with a compression spring seat, the inside of the compression spring seat is fixedly connected with a compression spring, the inside of the compression spring is sleeved with a piston rod, the bottom of the piston rod is provided with a combined sealing ring, the outer side of the piston rod is sleeved with a universal plug seal, one end of the cavity is fixedly connected with a cylinder body, the top of the cylinder body is fixedly connected with a cylinder sealing cover, the inside of the cylinder body is provided with a piston disc, one sides of the cylinder body and the cylinder sealing cover are both fixedly connected with a throttle valve, one side of the cavity is fixedly connected with a hexagonal flow passage, the top of the hexagonal flow passage is fixedly connected with a sealing sleeve, and the top of the sealing sleeve is provided with a T-shaped pin, the inside fixedly connected with sealing rod of seal cover, the second end cap has been cup jointed in the outside of sealing rod, the one end fixedly connected with extension spring of sealing rod, one side fixedly connected with cylinder runner of seal cover is kept away from to T type pin, the top fixedly connected with adapter of cylinder runner, the top of adapter is equipped with into rubber joint, be equipped with second O type circle between T type pin and the cylinder runner, the inside of adapter is equipped with the cylindric lock.
In order to make this big flow rate biliquid dynamic state mix the gluey valve and reach glue and mix more evenly and be convenient for carry out clear effect, conduct the utility model relates to an it is preferred, the (mixing) shaft passes through the output shaft fixed connection of shaft coupling and motor.
In order to make this large-traffic biliquid developments mix the gluey valve and reach glue and mix more evenly and be convenient for carry out clear effect, conduct the utility model relates to an it is preferred, one side that the gluey valve mount pad is close to the cavity is equipped with first sealed the pad, the gluey valve mount pad is kept away from one side that first sealed pad and is equipped with first end cap, establish the sealed pad of relevant glue between first end cap and the gluey valve mount pad.
In order to make this big flow rate biliquid developments mix the gluey valve and reach glue and mix more evenly and be convenient for carry out clear effect, conduct the utility model relates to an it is preferred, be equipped with first O type circle between cylinder sealing lid and the cylinder body.
In order to make this big flow rate biliquid dynamic state mix the gluey valve and reach glue and mix more evenly and be convenient for carry out clear effect, conduct the utility model relates to an it is preferred, every the top of hexagonal runner is equipped with two seal covers, one of them the advance the rubber connector outside at seal cover top is equipped with the washing and connects.
In order to make this large-traffic biliquid dynamic mixing glue valve reach glue mix more evenly and be convenient for carry out clear effect, conduct the utility model relates to an it is preferred, the one end diameter that the second end cap is close to extension spring is less than the one end diameter that the second end cap is close to the seal cover.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this high-flow biliquid developments mix gluey valve adopts compressed air and solenoid valve control piston rod reciprocating motion's mode to reach the purpose of switch, advances the glue joint and is connected with the delivery glue with the high-pressure line for the measuring pump export, and glue enters into the mixing cover through the cylinder runner, and the motor starts, and the motor drives stirring vane high-speed rotatory, makes and glues the intensive mixing with A glue and B, prevents that glue from mixing inhomogeneous, avoids glue drying time overlength, has guaranteed the result of use of glue.
This big flow rate biliquid developments mix gluey valve, through setting up the self-cleaning structure, when need wash the mixing cover after the encapsulating is accomplished, wash the joint and be connected with the washing bucket, the manual work starts the self-cleaning button, and liquid follows the pipeline and advances the inside of cylinder runner and mixing cover and wash, prevents that the inside glue of mixing cover from producing chemical reaction solidification, avoids mixing the cover and blockking up, easy operation, and it is more convenient to use, is favorable to using widely.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
fig. 3 is a schematic bottom view of the present invention;
fig. 4 is a schematic sectional view of the present invention.
In the figure: 1. a cylinder sealing cover; 2. a first O-ring; 3. a piston disc; 4. a throttle valve; 5. a cylinder body; 6. a piston rod; 7. plugging and sealing; 8. a compression spring; 9. a compression spring seat; 10. a combined sealing ring; 11. a cavity; 12. a first gasket; 13. a rubber valve mounting seat; 14. sealing the rubber gasket; 15. a first plug; 16. a motor; 17. a motor mounting seat; 18. a coupling; 19. a bearing cap; 20. a first clamp spring; 21. a flat bond; 22. a stirring shaft; 23. a bearing; 24. rotating the universal plug seal; 25. a mixing head; 26. a second clamp spring; 27. a second gasket; 28. a nut; 29. a stirring blade; 30. a mixing sleeve; 31. discharging the rubber head; 32. a glue inlet joint; 33. cleaning the joint; 34. an adapter; 35. a cylindrical pin; 36. a cylindrical flow channel; 37. a second O-ring; 38. an extension spring; 39. a second plug; 40. a sealing rod; 41. a T-shaped pin; 42. sealing sleeves; 43. a hexagonal runner; 44. and (6) discharging the glue joint.
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.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: the high-flow double-liquid dynamic mixing rubber valve comprises a mixing head 25, a motor mounting seat 17 is fixedly connected to the top of the mixing head 25, a motor 16 is fixedly connected to the top of the motor mounting seat 17, a coupler 18 is fixedly connected to an output shaft of the motor 16, a stirring shaft 22 is movably connected to the inside of the motor mounting seat 17, a bearing 23 is sleeved on the outer side of the stirring shaft 22, a flat key 21 is arranged on the outer side of the stirring shaft 22, a bearing cover 19 is arranged at one end of the bearing 23, a first clamp spring 20 is arranged at one end of the stirring shaft 22, a rotary universal plug seal 24 is arranged at the other end of the stirring shaft 22, a mixing sleeve 30 is fixedly connected to the bottom of the mixing head 25, a stirring blade 29 is movably connected to the inside of the mixing sleeve 30, a nut 28 is fixedly connected to one end of the stirring blade 29, a second sealing gasket 27 is arranged at one end of the nut 28, a second clamp spring 26 is arranged on one side of the second sealing gasket 27, a rubber outlet head 31 is fixedly connected to the bottom of the mixing sleeve 30, the bottom of the glue outlet head 31 is provided with a glue outlet joint 44, two sides of the mixing head 25 are fixedly connected with a glue valve mounting seat 13, one side of the glue valve mounting seat 13 is fixedly connected with a cavity 11, the inside of the cavity 11 is fixedly connected with a compression spring seat 9, the inside of the compression spring seat 9 is fixedly connected with a compression spring 8, the inside of the compression spring 8 is sleeved with a piston rod 6, the bottom of the piston rod 6 is provided with a combined sealing ring 10, the outer side of the piston rod 6 is sleeved with a universal plug seal 7, one end of the cavity 11 is fixedly connected with a cylinder body 5, the top of the cylinder body 5 is fixedly connected with a cylinder sealing cover 1, the inside of the cylinder body 5 is provided with a piston disc 3, one sides of the cylinder body 5 and the cylinder sealing cover 1 are fixedly connected with a throttle valve 4, one side of the cavity 11 is fixedly connected with a hexagonal flow passage 43, the top of the hexagonal flow passage 43 is fixedly connected with a sealing cover 42, and the top of the sealing cover 42 is provided with a T-shaped pin 41, seal cover 42's inside fixedly connected with sealing rod 40, second end cap 39 has been cup jointed in the outside of sealing rod 40, the one end fixedly connected with extension spring 38 of sealing rod 40, one side fixedly connected with cylinder runner 36 of seal cover 42 is kept away from to T type pin 41, the top fixedly connected with adapter 34 of cylinder runner 36, the top of adapter 34 is equipped with into glued joint 32, be equipped with second O type circle 37 between T type pin 41 and the cylinder runner 36, the inside of adapter 34 is equipped with cylindric lock 35.
In the embodiment of the utility model, the piston rod 6 is controlled by compressed air and the throttle valve 4 to reciprocate to achieve the purpose of opening and closing, the glue inlet joint 32 is connected with the outlet of the metering pump by a high-pressure pipe to convey glue, the glue enters the mixing sleeve 30 through the cylindrical runner 36, the motor 16 is started, the motor 16 drives the stirring blade 29 to rotate at high speed, so that the glue A and the glue B are fully mixed, the non-uniform mixing of the glue is prevented, the over-long glue drying time is avoided, the use effect of the glue is ensured, by arranging the automatic cleaning structure, when the mixing sleeve 30 needs to be cleaned after the glue filling is finished, the cleaning joint 33 is connected with the cleaning barrel, the automatic cleaning button is manually started, the liquid follows the pipeline to enter the cylindrical runner 36 and the inside of the mixing sleeve 30 to be washed, the glue inside of the mixing sleeve 30 is prevented from generating chemical reaction solidification, and the mixing sleeve 30 is prevented from being blocked, simple operation, more convenient use and is beneficial to popularization and use.
Specifically, the stirring shaft 22 is fixedly connected with the output shaft of the motor 16 through the coupling 18.
In this embodiment: rotation of the agitator shaft 22 is powered by the motor 16.
Specifically, one side of the rubber valve mounting base 13 close to the cavity 11 is provided with a first sealing gasket 12, one side of the rubber valve mounting base 13 far away from the first sealing gasket 12 is provided with a first plug 15, and a rubber sealing gasket 14 is arranged between the first plug 15 and the rubber valve mounting base 13.
In this embodiment: through setting up first sealed 12 of filling up, guaranteed the leakproofness between glue valve mount pad 13 and the cavity 11, through setting up sealed 14 of closing the gluey, guaranteed the leakproofness between first end cap 15 and the glue valve mount pad 13.
Specifically, a first O-shaped ring 2 is arranged between the cylinder sealing cover 1 and the cylinder body 5.
In this embodiment: the first O-shaped ring 2 is arranged between the cylinder sealing cover 1 and the cylinder body 5, so that the sealing performance between the cylinder sealing cover 1 and the cylinder body 5 is ensured.
Specifically, two sealing sleeves 42 are arranged at the top of each hexagonal flow passage 43, and a cleaning joint 33 is arranged on the outer side of the glue inlet joint 32 at the top of one sealing sleeve 42.
In this embodiment: by providing a cleaning connection 33, the cleaning fluid is facilitated to enter the interior of the mixing jacket 30 from the cleaning connection 33.
Specifically, the diameter of the end of the second plug 39 close to the extension spring 38 is smaller than the diameter of the end of the second plug 39 close to the sealing sleeve 42.
In this embodiment: the second plug 39 with different diameters at two ends is arranged, so that the sealing effect is better.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The utility model discloses a theory of operation and use flow: this large-traffic two liquid developments mix gluey valve when using, it carries glue with the high-pressure line connection for the metering pump export to advance the adapter 32, glue enters into mixing sleeve 30 through cylinder runner 36, motor 16 starts, motor 16 drives stirring vane 29 high-speed rotatory, make and glue A and B intensive mixing, prevent that glue from mixing inhomogeneous, avoid glue drying time overlength, the result of use of glue has been guaranteed, need wash mixing sleeve 30 after the encapsulating is accomplished when, it is connected with the washing bucket to wash adapter 33, the manual work starts the self-cleaning button, liquid follows the pipeline and advances cylinder runner 36 and mixing sleeve 30 inside and washes, prevent that the inside glue of mixing sleeve 30 from producing the chemical reaction solidification, it is blockked up to avoid mixing sleeve 30, the operation is simple, it is more convenient to use, and the popularization and use are favorable to.
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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. Big flow rate biliquid dynamic mixing glue valve, including mixing head (25), its characterized in that: the top fixedly connected with motor mount pad (17) of mixing head (25), the top fixedly connected with motor (16) of motor mount pad (17), the output shaft fixedly connected with shaft coupling (18) of motor (16), the inside swing joint of motor mount pad (17) has (mixing) shaft (22), bearing (23) have been cup jointed in the outside of (mixing) shaft (22), the outside of (mixing) shaft (22) is equipped with parallel key (21), the one end of bearing (23) is equipped with bearing cap (19), the one end of (mixing) shaft (22) is equipped with first jump ring (20), the other end of (mixing) shaft (22) is equipped with the rotation and fills in the stopper and seals (24), the bottom fixedly connected with of mixing head (25) mixes cover (30), the inside swing joint of mixing cover (30) has stirring vane (29), the one end fixedly connected with nut (28) of stirring vane (29), one end of the nut (28) is provided with a second sealing gasket (27), one side of the second sealing gasket (27) is provided with a second snap spring (26), the bottom of the mixing sleeve (30) is fixedly connected with a glue outlet head (31), the bottom of the glue outlet head (31) is provided with a glue outlet joint (44), two sides of the mixing head (25) are fixedly connected with a glue valve installation seat (13), one side of the glue valve installation seat (13) is fixedly connected with a cavity (11), the inside of the cavity (11) is fixedly connected with a compression spring seat (9), the inside of the compression spring seat (9) is fixedly connected with a compression spring (8), the inside of the compression spring (8) is sleeved with a piston rod (6), the bottom of the piston rod (6) is provided with a combined sealing ring (10), the outer side of the piston rod (6) is sleeved with a universal plug seal (7), one end of the cavity (11) is fixedly connected with a cylinder body (5), the cylinder is characterized in that a cylinder sealing cover (1) is fixedly connected to the top of a cylinder body (5), a piston disc (3) is arranged inside the cylinder body (5), a throttle valve (4) is fixedly connected to one side of the cylinder body (5) and the cylinder sealing cover (1), a hexagonal runner (43) is fixedly connected to one side of a cavity (11), a sealing sleeve (42) is fixedly connected to the top of the hexagonal runner (43), a T-shaped pin (41) is arranged at the top of the sealing sleeve (42), a sealing rod (40) is fixedly connected to the inside of the sealing sleeve (42), a second plug (39) is sleeved on the outer side of the sealing rod (40), an extension spring (38) is fixedly connected to one end of the sealing rod (40), a cylindrical runner (36) is fixedly connected to one side, far away from the sealing sleeve (42), of the T-shaped pin (41), and an adapter (34) is fixedly connected to the top of the cylindrical runner (36), the top of adapter (34) is equipped with into gluey joint (32), be equipped with second O type circle (37) between T type pin (41) and cylinder runner (36), the inside of adapter (34) is equipped with cylindric lock (35).
2. The high flow biliquid dynamic mixing glue valve of claim 1, characterized in that: the stirring shaft (22) is fixedly connected with an output shaft of the motor (16) through a coupler (18).
3. The high flow biliquid dynamic mixing glue valve of claim 1, characterized in that: one side that glue valve mount pad (13) is close to cavity (11) is equipped with first sealed pad (12), one side that first sealed pad (12) was kept away from in glue valve mount pad (13) is equipped with first end cap (15), establish between first end cap (15) and glue valve mount pad (13) and seal up (14) about gluing.
4. The high flow biliquid dynamic mixing glue valve of claim 1, characterized in that: a first O-shaped ring (2) is arranged between the cylinder sealing cover (1) and the cylinder body (5).
5. The high flow biliquid dynamic mixing glue valve of claim 1, characterized in that: two sealing sleeves (42) are arranged at the top of each hexagonal flow passage (43), and a cleaning joint (33) is arranged on the outer side of a glue inlet joint (32) at the top of one sealing sleeve (42).
6. The high flow biliquid dynamic mixing glue valve of claim 1, characterized in that: the diameter of one end, close to the extension spring (38), of the second plug (39) is smaller than that of one end, close to the sealing sleeve (42), of the second plug (39).
CN202120120172.8U 2021-01-18 2021-01-18 Large-flow double-liquid dynamic mixing rubber valve Active CN214864907U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120120172.8U CN214864907U (en) 2021-01-18 2021-01-18 Large-flow double-liquid dynamic mixing rubber valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120120172.8U CN214864907U (en) 2021-01-18 2021-01-18 Large-flow double-liquid dynamic mixing rubber valve

Publications (1)

Publication Number Publication Date
CN214864907U true CN214864907U (en) 2021-11-26

Family

ID=78861751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120120172.8U Active CN214864907U (en) 2021-01-18 2021-01-18 Large-flow double-liquid dynamic mixing rubber valve

Country Status (1)

Country Link
CN (1) CN214864907U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114749053A (en) * 2022-04-24 2022-07-15 普洛赛斯(苏州)智能装备有限公司 Dynamic mixing valve for A and B double-component glue
CN115155962A (en) * 2022-07-29 2022-10-11 大连华工创新科技股份有限公司 Dynamic stirring drenches gluey head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114749053A (en) * 2022-04-24 2022-07-15 普洛赛斯(苏州)智能装备有限公司 Dynamic mixing valve for A and B double-component glue
CN115155962A (en) * 2022-07-29 2022-10-11 大连华工创新科技股份有限公司 Dynamic stirring drenches gluey head

Similar Documents

Publication Publication Date Title
CN214864907U (en) Large-flow double-liquid dynamic mixing rubber valve
CN104259051B (en) Axle moves gluing head
CN209034712U (en) A kind of suck back valve with agitating function
CN214554882U (en) Micro double-liquid static mixing rubber valve
CN111389273A (en) Coating diluting device
CN208449774U (en) A kind of automatic glue injection apparatus
CN203159165U (en) Sealing and rotating valve and liquid transferring device
CN215030751U (en) Self-cleaning silicone sealant coating glue gun
CN207708941U (en) A kind of dynamic sealing glue blending device of anti-bias
CN210646027U (en) Epoxy powder coating production agitating unit
CN210021907U (en) From stirring formula dyestuff blending tank
CN208557925U (en) A kind of compounding concrete admixture can washing apparatus
CN107599180B (en) A kind of porous plus water energy amount valve of concrete mortar
CN103072929B (en) Encapsulated rotary valve and liquid transfer device
CN217221737U (en) Horizontal sanding device for grinding pesticides
CN201951426U (en) Liquid mixer for vehicle washing liquid used for portable vehicle washing device
CN214554883U (en) Micro double-liquid dynamic mixing rubber valve
CN215312081U (en) Dynamic mixer
CN210994140U (en) Leak-proof device for high-speed mixer
CN217091398U (en) Anti-backflow electric nose washer
CN216914456U (en) Intelligent large-volume slow-drying type material preparation device for epoxy resin pouring
CN210645709U (en) Cement mixer dust collector
CN212309382U (en) Agitating unit is used in weaving dyeing
CN217016485U (en) Pigment valve
CN211537633U (en) Modified coating production equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant