[go: up one dir, main page]

CN215233332U - Device for improving quality of reverse osmosis water - Google Patents

Device for improving quality of reverse osmosis water Download PDF

Info

Publication number
CN215233332U
CN215233332U CN202121696731.6U CN202121696731U CN215233332U CN 215233332 U CN215233332 U CN 215233332U CN 202121696731 U CN202121696731 U CN 202121696731U CN 215233332 U CN215233332 U CN 215233332U
Authority
CN
China
Prior art keywords
frame
water
reverse osmosis
wall
block
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
CN202121696731.6U
Other languages
Chinese (zh)
Inventor
王东波
徐进祥
李�荣
黄雪梅
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.)
Hubei Liuguo Chemical Industry Co ltd
Original Assignee
Hubei Liuguo Chemical Industry 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 Hubei Liuguo Chemical Industry Co ltd filed Critical Hubei Liuguo Chemical Industry Co ltd
Priority to CN202121696731.6U priority Critical patent/CN215233332U/en
Application granted granted Critical
Publication of CN215233332U publication Critical patent/CN215233332U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The utility model discloses an improve device of reverse osmosis water quality of water, the device are including handling the case, a set of supporting leg is installed to the bottom surface of handling the case, the frame has been placed to the inside of handling the case, two reverse osmosis membrane are installed to the inner wall of frame. The utility model relates to a rational in infrastructure, it can utilize the flushing assembly, make the device can wash reverse osmosis membrane on line, can avoid reverse osmosis membrane to take place to block up, can improve quality of water and purification efficiency, charge pump work can pour into the inside of water pipe into after the inside water pressure boost of frame, the inside water of water pipe can spout the surface to reverse osmosis membrane through the shower nozzle, motor work can drive reciprocal threaded rod and rotate, reciprocal threaded rod rotates and can drive connecting block and two water pipes and reciprocate, can carry out comprehensive online washing to two reverse osmosis membranes, can avoid reverse osmosis membrane to block up.

Description

Device for improving quality of reverse osmosis water
Technical Field
The utility model relates to a water purification technology field specifically is a device for improving reverse osmosis water quality.
Background
The water purification refers to a purification process for removing contaminants from raw water, and the purpose of the purification is to achieve the effect of water purification by a specific procedure, and to use water for different purposes, in the water purification process, reverse osmosis is widely used, reverse osmosis is also called reverse osmosis, which is a membrane separation operation for separating a solvent from a solution by using a pressure difference as a driving force, and applies pressure to a feed liquid on one side of a membrane, and when the pressure exceeds the osmotic pressure, the solvent reversely permeates in a direction opposite to the natural permeation direction.
At present, the prior art with the patent number of CN212166704U discloses a reverse osmosis water quality filter with a filter screen convenient to replace, which is characterized in that the filter screen is moved out of a frame by arranging a pull rod, a baffle, a bolt, a second slide block, a second slide groove, a second spring groove, a first slide groove and a first slide block, only the filter screen needs to be replaced, so that the replacement cost is saved, the practicability of the device is improved, but the reverse osmosis membrane in the device cannot be washed on line, the purification quality of water quality is seriously reduced due to the blockage of the reverse osmosis membrane, and the purification efficiency is influenced; therefore, the device for improving the quality of reverse osmosis water is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for improving the quality of reverse osmosis water in order to make up the defects of the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an improve device of reverse osmosis water quality of water, includes the processing case, a set of supporting leg is installed to the bottom surface of processing case, the frame has been placed to the inside of processing case, two reverse osmosis membranes are installed to the inner wall of frame, the left and right sides of processing case all is fixed the intercommunication has the inlet tube, two drainage component are installed to the bottom surface of frame, the top of frame runs through the interior roof of processing case and extends to the top of processing case, the last surface mounting who handles the case has sealed fixed establishment, the internally mounted of frame has the flushing assembly, the front of handling the case articulates there are two blowdown doors.
Further, the drainage assembly comprises a drainage pipe, the drainage pipe is fixedly embedded in the inner bottom wall of the frame, the bottom end of the drainage pipe penetrates through the inner bottom wall of the treatment box and extends to the lower portion of the treatment box, and an electromagnetic valve is mounted on the outer surface of the drainage pipe.
Further, sealed fixed establishment includes the fixed plate, the bottom surface of fixed plate contacts with the upper surface of frame, rubber seal is installed to the bottom surface of fixed plate, and rubber seal's bottom surface contacts with the upper surface of handling the case, the left and right sides of fixed plate all is provided with two bracing pieces, and bracing piece fixed connection in the upper surface of handling the case, every the top of bracing piece is all rotated and is connected with the connecting plate.
Further, every the inside of connecting plate is all fixed to be inlayed and is had first thread bush, every the equal threaded connection of first thread bush's inner wall has the lead screw, every the bottom of lead screw all rotates and is connected with the stripper plate, every a set of block rubber is all installed to the bottom surface of stripper plate, and the bottom surface of block rubber and the upper surface of fixed plate contact, every the turning block is all installed on the top of lead screw.
Further, the flushing component comprises a motor, the motor is fixedly connected to the inner top wall of the frame, the output end of the motor is fixedly connected with a reciprocating threaded rod, the bottom end of the reciprocating threaded rod is rotatably connected with the inner bottom wall of the frame, the outer surface of the reciprocating threaded rod is in threaded connection with a second threaded sleeve, and the outer surface of the second threaded sleeve is fixedly connected with a connecting block.
Further, the equal fixedly connected with water pipe of the left and right sides face of connecting block, two the equal fixed intercommunication of a side that the water pipe kept away from each other has a set of washing terminals, the below of connecting block is provided with two booster pumps, and booster pump fixed connection is in the inner diapire of frame, two the equal fixed intercommunication of output of booster pump has the hose, two the top of hose is linked together with the inside of two water pipes respectively.
Furthermore, both sides all set up two spouts around the water passing pipe, and the inner wall of frame is seted up to the spout, every the equal sliding connection of inner wall of spout has the slider, and the slider is close to the side of water passing pipe and the fixed surface of water passing pipe is connected.
Has the advantages that:
the utility model discloses utilize the flushing assembly, make the device can wash reverse osmosis membrane on line, can avoid reverse osmosis membrane to take place to block up, can improve quality of water and purification efficiency, charge pump work can pour into the inside of water pipe into after the inside water pressure boost of frame, the inside water of water pipe can spout the surface to reverse osmosis membrane through the washing terminals, motor work can drive reciprocal threaded rod and rotate, reciprocal threaded rod rotates and can drive connecting block and two water pipes and reciprocate, can carry out comprehensive online washing to two reverse osmosis membranes, can avoid reverse osmosis membrane to block up.
Drawings
Fig. 1 is a schematic perspective view of the front view of the present invention;
fig. 2 is a perspective sectional view of the front view of the present invention;
FIG. 3 is a schematic cross-sectional view of the internal structure of the frame of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 5 is an enlarged schematic view of the structure at B in fig. 3 according to the present invention.
In the figure: 1 treatment tank, 2 supporting legs, 3 frames, 4 reverse osmosis membranes, 5 water inlet pipes, 6 drainage assemblies, 601 drainage pipes, 602 electromagnetic valves, 7 sealing and fixing mechanisms, 701 fixing plates, 702 rubber sealing rings, 703 supporting rods, 704 connecting plates, 705 first threaded sleeves, 706 lead screws, 707 extrusion plates, 708 rubber blocks, 709 rotating blocks, 8 flushing assemblies, 801 motors, 802 reciprocating threaded rods, 803 second threaded sleeves, 804 connecting blocks, 805 water passing pipes, 806 flushing nozzles, 807 booster pumps, 808 hoses, 809 chutes, 810 sliding blocks and 9 sewage discharge doors.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
This embodiment provides an improve device of reverse osmosis water quality of water, and the device is used for carrying out reverse osmosis treatment to sewage, through the washing subassembly 8 that sets up for the device can wash reverse osmosis membrane 4 on line, can avoid reverse osmosis membrane 4 to take place to block up, can improve quality of water and purification efficiency.
Referring to fig. 1 to 5, the device for improving the quality of reverse osmosis water of the present invention comprises a treatment tank 1, wherein a set of support legs 2 is installed on the bottom surface of the treatment tank 1, a frame 3 is placed inside the treatment tank 1, two reverse osmosis membranes 4 are installed on the inner wall of the frame 3, and the reverse osmosis membranes 4 can effectively remove dissolved salts, colloids, microorganisms, organic matters, etc. in water;
the left side and the right side of the treatment box 1 are fixedly communicated with water inlet pipes 5, the water inlet pipes 5 can pressurize water to be treated and then inject the water into the treatment box 1 for treatment, and two symmetrical drainage assemblies 6 are mounted on the bottom surface of the frame 3.
Optionally, the number of the support legs 2 is four, and each support leg 2 is respectively positioned at four corners of the bottom surface of the treatment box 1.
Specifically, the drain assembly 6 includes a drain pipe 601 such that the drain pipe 601 is fixedly mounted to the inner bottom wall of the frame 3, the top end of the drain pipe 601 is communicated with the inside of the frame 3, and the penetration portion of the drain pipe 601 and the processing chamber 1 is in a sealed state such that the bottom end of the drain pipe 601 penetrates the inner bottom wall of the processing chamber 1 and extends to the lower side of the processing chamber 1.
Referring to fig. 3, a solenoid valve 602 for controlling the outflow of water inside the frame 3 is installed at an outer surface of the drain pipe 601 so that the treated water inside the frame 3 can be discharged to the outside of the treatment tank 1 through the drain pipe 601.
Referring to fig. 2, the top end of the frame 3 penetrates through the inner top wall of the treatment tank 1 and extends to the upper side of the treatment tank 1, and a through groove adapted to the frame 3 is formed in the upper surface of the treatment tank 1, so that the outer surface of the frame 3 is slidably connected with the inner wall of the through groove.
Referring to fig. 1, 2 and 4, a seal fixing mechanism 7 including a fixing plate 701 is installed on an upper surface of the treatment tank 1, the fixing plate 701 is placed on an upper surface of the frame 3, and a rubber packing 702 is installed on a bottom surface of the fixing plate 701 such that a bottom surface of the rubber packing 702 is in contact with the upper surface of the treatment tank 1.
Preferably, the rubber packing 702 is shaped and sized to fit the frame 3, and can seal the penetration portion between the frame 3 and the treatment tank 1.
In addition, two symmetrical support rods 703 are arranged on the left side and the right side of the fixing plate 701, so that the support rods 703 are fixedly connected to the upper surface of the treatment box 1, a connecting plate 704 is rotatably connected to the top end of each support rod 703, and each support rod 703 is respectively positioned at four corners of the fixing plate 701; furthermore, a first threaded sleeve 705 is fixedly embedded in each connecting plate 704, a screw rod 706 is connected to the inner wall of each first threaded sleeve 705 in a threaded manner, the bottom end of the screw rod 706 can move downwards by rotating the screw rod 706 through the threaded fit between the screw rod 706 and the first threaded sleeve 705, a pressing plate 707 is rotatably connected to the bottom end of each screw rod 706, and a group of rubber blocks 708 is mounted on the bottom surface of each pressing plate 707, so that the bottom surface of each rubber block 708 is in contact with the upper surface of the fixing plate 701.
In this embodiment, when the bottom end of the screw 706 moves downward, the pressing plate 707 and the rubber block 708 can be driven to move downward, and the fixing plate 701 can be pressed downward, so that the fixing plate 701 fixes the frame 3.
Referring to fig. 4, a rotating block 709 is installed at the top end of each screw rod 706, a circle of anti-slip lines are formed on the outer surface of the rotating block 709, and the screw rods 706 can be conveniently rotated through the rotating blocks 709.
Referring to fig. 3 and 5, a flushing assembly 8 is installed inside the frame 3, and includes a motor 801, the motor 801 is fixedly connected to an inner top wall of the frame 3, a reciprocating threaded rod 802 is fixedly connected to an output end of the motor 801, such that a bottom end of the reciprocating threaded rod 802 is rotatably connected to the inner bottom wall of the frame 3, a second threaded sleeve 803 is threadedly connected to an outer surface of the reciprocating threaded rod 802, and a connecting block 804 is fixedly connected to an outer surface of the second threaded sleeve 803.
Preferably, the motor 801 is a waterproof motor.
The starting motor 801 can drive the reciprocating threaded rod 802 to rotate, and the reciprocating threaded rod 802 rotates to drive the second threaded sleeve 803 and the connecting block 804 to move up and down by means of threaded fit between the reciprocating threaded rod 802 and the second threaded sleeve 803.
Referring to fig. 3, water pipes 805 are fixedly connected to both left and right sides of the connecting block 804, and a set of flushing nozzles 806 is fixedly communicated to both sides of the two water pipes 805 away from each other.
Preferably, the flush nozzles 806 are equidistantly spaced.
Referring to fig. 3, two booster pumps 807 are arranged below the connecting block 804, so that the booster pumps 807 are fixedly connected to the inner bottom wall of the frame 3, hoses 808 are fixedly communicated with the output ends of the two booster pumps 807, and the top ends of the two hoses 808 are respectively communicated with the insides of the two water passing pipes 805.
In this embodiment, the booster pump 807 is operated to pressurize the water inside the frame 3 and then inject the water into the water pipe 805 through the hose 808, and the water inside the water pipe 805 can be sprayed onto the surface of the reverse osmosis membrane 4 through the washing nozzle 806 to wash the reverse osmosis membrane 4.
Referring to fig. 3 and 5, two sliding grooves 809 are respectively arranged on the front side and the rear side of the water passing pipe 805, so that the sliding grooves 809 are arranged on the inner wall of the frame 3, a sliding block 810 is connected to the inner wall of each sliding groove 809 in a sliding manner, and one side surface of each sliding block 810 close to the water passing pipe 805 is fixedly connected with the outer surface of the water passing pipe 805. Wherein, spout 809 and slider 810 can lead to water pipe 805, there are a plurality ofly for the mode of realizing the direction to water pipe 805, both sides all set up two spouts 809 around water pipe 805 promptly, make spout 809 set up in the inner wall of frame 3, equal sliding connection has slider 810 in the inner wall of every spout 809, and make slider 810 be close to water pipe 805 one side and water pipe 805's outer surface fixed connection, perhaps there is the guide bar at water pipe 805's outer surface sliding connection, make the both ends of guide bar respectively with the interior roof of frame 3 and the interior diapire of frame 3 solid electricity be connected.
Referring to fig. 1, two symmetrical sewage discharging doors 9 are hinged to the front surface of the treatment box 1, and a sealing gasket is arranged between the sewage discharging doors 9 and the outer surface of the treatment box 1, so that the inside of the treatment box 1 can ensure air tightness; through the blowdown door 9 that sets up, can conveniently clear up the inside of handling case 1.
When the device is used specifically, water to be treated is pressurized and then injected into the treatment box 1 through the water inlet pipe 5 for treatment, under the combined action of pressure and the reverse osmosis membrane 4, clean water can enter the frame 3 and is discharged through the drainage component 6, when the reverse osmosis membrane 4 is blocked, the water quality treated by the device is reduced, firstly, the electromagnetic valve 602 is closed, so that a certain amount of water is stored in the frame 3, then, the booster pump 807 is started, the booster pump 807 can pressurize the water in the frame 3 and then inject the water into the water passing pipe 805 through the hose 808, the water in the water passing pipe 805 can be sprayed to the surface of the reverse osmosis membrane 4 through the flushing nozzle 806, the motor 801 is started, the motor 801 can work to drive the reciprocating threaded rod 802 to rotate, by means of the thread fit between the reciprocating threaded rod 802 and the second threaded sleeve 803, the reciprocating threaded rod 802 can rotate to drive the connecting block 804 and the two water passing pipes 805 to move up and down, can carry out comprehensive online washing to two reverse osmosis membrane 4, can avoid reverse osmosis membrane 4 to block up.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an improve device of reverse osmosis water quality of water, includes treatment tank (1), its characterized in that: a set of supporting leg (2) is installed to the bottom surface of handling case (1), frame (3) have been placed to the inside of handling case (1), two reverse osmosis membrane (4) are installed to the inner wall of frame (3), the left and right sides of handling case (1) all is fixed the intercommunication has inlet tube (5), two drainage subassembly (6) are installed to the bottom surface of frame (3), the top of frame (3) runs through the interior roof of handling case (1) and extends to the top of handling case (1), the last surface mounting of handling case (1) has sealed fixed establishment (7), the internally mounted of frame (3) has flushing assembly (8), the front of handling case (1) articulates there are two blowdown doors (9).
2. The apparatus of claim 1, wherein the apparatus comprises: the drainage assembly (6) comprises a drainage pipe (601), the drainage pipe (601) is fixedly embedded in the inner bottom wall of the frame (3), the bottom end of the drainage pipe (601) penetrates through the inner bottom wall of the treatment box (1) and extends to the lower portion of the treatment box (1), and an electromagnetic valve (602) is mounted on the outer surface of the drainage pipe (601).
3. The apparatus of claim 1, wherein the apparatus comprises: sealed fixed establishment (7) are including fixed plate (701), the bottom surface of fixed plate (701) contacts with the upper surface of frame (3), rubber seal (702) are installed to the bottom surface of fixed plate (701), and the bottom surface of rubber seal (702) contacts with the upper surface of handling case (1), the left and right sides of fixed plate (701) all is provided with two bracing pieces (703), and bracing piece (703) fixed connection in the upper surface of handling case (1), every the top of bracing piece (703) all rotates and is connected with connecting plate (704).
4. The apparatus of claim 3, wherein the apparatus comprises: every the inside of connecting plate (704) is all fixed to be inlayed and is had first threaded sleeve pipe (705), every the equal threaded connection of inner wall of first threaded sleeve pipe (705) has lead screw (706), every the bottom of lead screw (706) is all rotated and is connected with stripper plate (707), every a set of rubber block (708) is all installed to the bottom surface of stripper plate (707), and the bottom surface of rubber block (708) contacts with the upper surface of fixed plate (701), every turning block (709) is all installed on the top of lead screw (706).
5. The apparatus of claim 1, wherein the apparatus comprises: the flushing assembly (8) comprises a motor (801), the motor (801) is fixedly connected to the inner top wall of the frame (3), the output end of the motor (801) is fixedly connected with a reciprocating threaded rod (802), the bottom end of the reciprocating threaded rod (802) is rotatably connected with the inner bottom wall of the frame (3), the outer surface of the reciprocating threaded rod (802) is in threaded connection with a second threaded sleeve (803), and the outer surface of the second threaded sleeve (803) is fixedly connected with a connecting block (804).
6. The apparatus of claim 5, wherein the apparatus comprises: the left side surface and the right side surface of the connecting block (804) are fixedly connected with water passing pipes (805), and one side surface, away from each other, of each of the two water passing pipes (805) is fixedly communicated with a group of flushing nozzles (806).
7. The apparatus of claim 6, wherein the apparatus comprises: two booster pumps (807) are arranged below the connecting block (804), the booster pumps (807) are fixedly connected to the inner bottom wall of the frame (3), the output ends of the two booster pumps (807) are fixedly communicated with hoses (808), and the top ends of the hoses (808) are respectively communicated with the interiors of the two water passing pipes (805).
8. The apparatus of claim 7, wherein the apparatus comprises: two sliding grooves (809) are formed in the front side and the rear side of the water passing pipe (805), the sliding grooves (809) are arranged on the inner wall of the frame (3), each sliding block (810) is connected to the inner wall of each sliding groove (809) in a sliding mode, and one side face, close to the water passing pipe (805), of each sliding block (810) is fixedly connected with the outer surface of the water passing pipe (805).
CN202121696731.6U 2021-07-23 2021-07-23 Device for improving quality of reverse osmosis water Active CN215233332U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121696731.6U CN215233332U (en) 2021-07-23 2021-07-23 Device for improving quality of reverse osmosis water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121696731.6U CN215233332U (en) 2021-07-23 2021-07-23 Device for improving quality of reverse osmosis water

Publications (1)

Publication Number Publication Date
CN215233332U true CN215233332U (en) 2021-12-21

Family

ID=79494428

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121696731.6U Active CN215233332U (en) 2021-07-23 2021-07-23 Device for improving quality of reverse osmosis water

Country Status (1)

Country Link
CN (1) CN215233332U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534493A (en) * 2022-03-07 2022-05-27 达州玖源新材料有限公司 Reverse osmosis filtering device and using method thereof
CN114768533A (en) * 2022-03-09 2022-07-22 临朐恒辉新材料有限公司 Water desalination equipment for stirring and washing aluminum hydroxide micro powder
CN116835718A (en) * 2023-08-02 2023-10-03 江苏久智环境科技服务有限公司 Water filter for irrigation system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534493A (en) * 2022-03-07 2022-05-27 达州玖源新材料有限公司 Reverse osmosis filtering device and using method thereof
CN114768533A (en) * 2022-03-09 2022-07-22 临朐恒辉新材料有限公司 Water desalination equipment for stirring and washing aluminum hydroxide micro powder
CN114768533B (en) * 2022-03-09 2024-02-06 临朐恒辉新材料有限公司 Water desalination equipment is used in stirring of aluminium hydroxide miropowder
CN116835718A (en) * 2023-08-02 2023-10-03 江苏久智环境科技服务有限公司 Water filter for irrigation system
CN116835718B (en) * 2023-08-02 2024-04-05 江苏久智环境科技服务有限公司 Water filter for irrigation system

Similar Documents

Publication Publication Date Title
CN215233332U (en) Device for improving quality of reverse osmosis water
CN206009377U (en) Empty barrel cleaner for inner wall
CN116492729B (en) Plate-frame type high-efficiency separation filter press system
CN117259482B (en) Copper foil washing device and washing method of raw foil machine
CN212962427U (en) A blowdown structure for air separation equipment
CN209178050U (en) A water filtration device for a reverse osmosis water machine used in the production of facial skin care products
CN108144347B (en) Method for rapidly treating sewage
CN114053770B (en) Plate-and-frame filter press for waste liquid treatment
CN114733861A (en) Municipal administration water supply and drainage pipeline cleaning equipment
CN112274994B (en) Water treatment facilities convenient to maintain
CN212091722U (en) Cleaning device for ultrafiltration machine set
CN110255664B (en) Centrifugal water body impurity separation equipment
CN211004694U (en) Reverse osmosis head water treatment facilities
CN210365272U (en) Chemical storage tank
CN210410240U (en) Membrane element cleaning device
CN119281123B (en) A membrane filtration device and system for wastewater in the production process of chloroprene rubber
CN113944016B (en) Printing and dyeing production device based on reduction of printing and dyeing wastewater and application method thereof
CN212188606U (en) Oily sewage ultrafiltration treatment environment-friendly device
CN220677012U (en) Treatment device for reverse osmosis concentrated solution of garbage permeate
CN219683485U (en) Novel oil pipe cleaning equipment
CN204469368U (en) A kind of water treatment belt filter press automatic flushing device
CN218794321U (en) A bag filter cleaning device
CN218653878U (en) Quick assembly disassembly reverse osmosis unit
CN221183920U (en) Template cleaning machine capable of recycling water source
CN110694315A (en) Filter press

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant