CN215122857U - Circulated formula water conservation sprinkling irrigation equipment for golf course - Google Patents
Circulated formula water conservation sprinkling irrigation equipment for golf course Download PDFInfo
- Publication number
- CN215122857U CN215122857U CN202121787532.6U CN202121787532U CN215122857U CN 215122857 U CN215122857 U CN 215122857U CN 202121787532 U CN202121787532 U CN 202121787532U CN 215122857 U CN215122857 U CN 215122857U
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- golf course
- sprinkling irrigation
- booster pump
- 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
Links
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a golf course is with circulating water conservation sprinkling irrigation equipment relates to the sprinkling irrigation equipment field, to the water waste that causes and irrigate inhomogeneous problem in the golf course when irrigating, the following scheme is put forward at present, including water-collecting mechanism, filtering mechanism, inlet tube, booster pump, outlet pipe and shower nozzle, water-collecting mechanism one side is connected with the return water pipe, just run through on the return water pipe and be provided with filtering mechanism, just the return water pipe end-to-end connection has the inlet tube, inlet tube end and booster pump fixed connection, booster pump opposite side and outlet pipe fixed connection, just be provided with the tee bend on the outlet pipe, threaded connection has a water pipe just under the shower nozzle a water pipe keeps away from shower nozzle one end and tee bend fixed connection. The device can effectively save water waste when the golf course is irrigated, can carry out more even irrigation to the golf course, and improve the practical performance of the device.
Description
Technical Field
The utility model relates to a sprinkling irrigation equipment field especially relates to a golf course is with water conservation sprinkling irrigation equipment.
Background
A golf course is a field required when playing golf. The field is in a strip shape, the turf is fully paved, and the ball serving table, the fairway, the green, the grass growing, the sand pit, the water pool and other obstacles are arranged in the field.
Current golf course is when carrying out the maintenance to the turf, in order not to let the turf lead to dying because of lacking water, often adopts a large amount of water resources to irrigate, leads to the waste, and irrigates inhomogeneously.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of water conservation sprinkling irrigation equipment is used in golf course has solved the water waste that causes when golf course irrigates and irrigates inhomogeneous problem, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme:
the utility model provides a golf course is with water conservation sprinkling irrigation equipment, includes water-collecting mechanism, filtering mechanism, inlet tube, booster pump, outlet pipe and shower nozzle, water-collecting mechanism one side is connected with the return water pipe, just it is provided with filtering mechanism to run through on the return water pipe, be provided with the recovery water valve on the return water pipe, just return water pipe end-to-end connection has the inlet tube, inlet tube end and booster pump fixed connection, booster pump opposite side and outlet pipe fixed connection, just be provided with the tee bend on the outlet pipe, shower nozzle lower extreme threaded connection has a water pipe just shower nozzle one end and tee bend fixed connection are kept away from to a water pipe, it installs a water pipe main valve to be close to tee bend department on the water pipe.
Preferably, the mechanism of catchmenting includes water catch bowl, cistern, water level inductor and grid, just the water catch bowl end is set up in the cistern upper end, cistern cell body top is close to water catch bowl department and is fixed with the grid, just be close to grid department fixed mounting on the cistern lateral wall and have the water level inductor.
Preferably, filtering mechanism includes metal mesh, dense mesh net, filter cloth, filters sponge and outer wall, metal mesh fixed connection is on the outer wall, dense mesh net is located metal mesh one side, just dense mesh net and outer wall fixed connection, filter cloth and outer wall fixed connection, just filter cloth is located dense mesh net and keeps away from metal mesh one side, filter sponge fixed connection is on the outer wall, just filter sponge is located filter cloth and keeps away from dense mesh one side.
Preferably, a tail end valve is arranged at the position, close to the spray head, of the branch water pipe, and the spray head is divided into eight directions.
Preferably, the sealing rings are arranged at the joint of the water recovery pipe and the water inlet pipe, the joint of the water inlet pipe and the booster pump and the joint of the booster pump and the water outlet pipe, bolts penetrate through the joints, and the bolts are fastened and connected with nuts.
Preferably, the recycling water pipe is close to one side of the water collecting mechanism and penetrates through and is fixed on the side wall of the reservoir, and one end of the recycling water pipe in the reservoir is bent downwards and is close to the bottom of the reservoir.
Preferably, a rubber pad is arranged at the joint of the spray head and the branch water pipe.
The utility model has the advantages that:
1. the water collecting tank is arranged at the low-lying position of the golf course, water irrigated to the golf course is collected into the reservoir, large dirt in the recovered water can be intercepted in advance by the grid arranged in the reservoir, the dirt is prevented from entering the reservoir, the water level sensor arranged on the inner wall of the reservoir can detect the water level height in the reservoir, when the water level in the reservoir reaches the set height, the recovered water valve arranged on the recovered water pipe is opened, and the water in the reservoir is pumped out by the booster pump along the recovered water pipe;
2. the reclaimed water pumped by the booster pump is pumped out along the reclaimed water pipe and then passes through the filtering mechanism, the metal net, the dense mesh net, the filter cloth and the filter sponge are fixedly arranged in the center of the filtering mechanism in sequence according to the water flow direction, and different particle dirt contained in the water can be intercepted when the reclaimed water passes through, so that the dirt is prevented from damaging the booster pump or blocking the spray head;
3. the joint of the branch water pipe and the spray head is in threaded connection, the tail end of the branch water pipe is provided with the tail end valve, when the spray head is blocked or damaged, the tail end valve can be screwed down, then the spray head is screwed down for maintenance or replacement, the spray head is divided into eight directions, the spray irrigation range is wider, the spray irrigation degree of different areas is more uniform, and more water is saved;
4. sealing rings are arranged at the joint of the water recovery pipe and the water inlet pipe, the joint of the water inlet pipe and the booster pump and the joint of the booster pump and the water outlet pipe, and bolts penetrate through the joints and are tightly connected with nuts, so that the joints can be connected more tightly, the sealing performance of the joints is enhanced by the sealing rings, and the joints are not easy to leak water;
5. one side of the recovery water pipe, which is close to the water collecting mechanism, is fixedly penetrated on the side wall of the reservoir, and one end of the recovery water pipe in the reservoir is bent downwards and is close to the bottom of the reservoir, so that when the recovery water accumulated in the reservoir is extracted, the water in the reservoir can be extracted more cleanly, and the sedimentation of garbage such as silt, sundries and the like at the bottom of the reservoir is avoided;
6. the water outlet pipe is connected with the branch water pipes through a tee joint, the main water pipe and the branch water pipes are laid below the ground of the golf course, and the branch water pipes penetrate through the ground at the required positions to be connected with the spray head, so that the water pipes can be effectively protected from being damaged, and the possibility that the water pipes are frozen and burst in winter is effectively reduced;
7. the rubber pad is arranged at the joint of the branch water pipe and the spray head, so that the threaded structure at the joint of the spray head and the branch water pipe can be prevented from being screwed too hard, the subsequent process of replacement is not required, and meanwhile, a certain sealing effect can be achieved for the joint.
In conclusion, the device can effectively save water waste when the golf course is irrigated, can irrigate the golf course more uniformly, and improves the practicability of the device.
Drawings
Fig. 1 is a front view structure diagram of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic sectional structure diagram of the filtering mechanism of the present invention.
Fig. 4 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.
Fig. 5 is a schematic side view of the structure at the position B in fig. 1 according to the present invention.
Reference numbers in the figures: 1. a water collecting mechanism; 101. a water collection tank; 102. a reservoir; 103. a water level sensor; 104. a grid; 2. a filtering mechanism; 201. a metal mesh; 202. a dense mesh net; 203. A filter cloth; 204. filtering the sponge; 205. an outer wall; 3. a water inlet pipe; 4. a booster pump; 5. A nut; 6. a seal ring; 7. a bolt; 8. a tee joint; 9. a branch pipe main valve; 10. a branch water pipe; 11. a terminal valve; 12. a rubber pad; 13. a spray head; 14. a water recovery valve; 15. a water recovery pipe; 16. and (5) discharging a water pipe.
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.
Referring to fig. 1-5, a circulating water-saving sprinkling irrigation device for a golf course comprises a water collecting mechanism 1, a filtering mechanism 2, a water inlet pipe 3, a booster pump 4, a water outlet pipe 16 and a spray head 13, wherein one side of the water collecting mechanism 1 is connected with a water recovery pipe 15, the water recovery pipe 15 is provided with the filtering mechanism 2 in a penetrating manner, the water recovery pipe 15 is provided with a water recovery valve 14, the tail end of the water recovery pipe 15 is connected with the water inlet pipe 3, the tail end of the water inlet pipe 3 is fixedly connected with the booster pump 4, the other side of the booster pump 4 is fixedly connected with the water outlet pipe 16, the water outlet pipe 16 is provided with a tee joint 8, the lower end of the spray head 13 is in threaded connection with a branch water pipe 10, one end of the branch water pipe 10, which is far away from the spray head 13, is fixedly connected with the tee joint 8, and a branch water pipe main valve 9 is arranged on the branch water pipe 10, which is close to the tee joint 8;
in this embodiment, the water collecting mechanism 1 includes a water collecting tank 101, a water collecting tank 102, a water level sensor 103 and a grating 104, the end of the water collecting tank 101 is erected on the upper end of the water collecting tank 102, the grating 104 is fixed on the upper portion of the tank body of the water collecting tank 102 near the water collecting tank 101, the water level sensor 103 is fixedly installed on the side wall of the water collecting tank 102 near the grating 104, water irrigated to a golf course can be collected in the water collecting tank 102, and the grating 104 installed in the water collecting tank 102 can intercept large-sized dirt in the recovered water in advance. Dirt is prevented from entering the reservoir 102, a water level sensor 103 arranged on the inner wall of the reservoir 102 can detect the water level in the reservoir 102, when the water level in the reservoir 102 reaches a set height, a recovery water valve 14 arranged on a recovery water pipe 15 is opened, and water in the reservoir 102 is pumped out by the booster pump 4 along the recovery water pipe 15;
further, the filtering mechanism 2 comprises a metal net 201, a dense mesh net 202, a filtering cloth 203, a filtering sponge 204 and an outer wall 205, the metal net 201 is fixedly connected to the outer wall 205, the dense mesh net 202 is located on one side of the metal net 201, the dense mesh net 202 is fixedly connected with the outer wall 205, the filtering cloth 203 is located on one side of the dense mesh net 202 away from the metal net 201, the filtering sponge 204 is fixedly connected to the outer wall 205, and the filtering sponge 204 is located on one side of the filtering cloth 203 away from the dense mesh net 202, so that when the recovered water passes through the filtering mechanism 2, dirt with different particle diameters contained in the water can be intercepted, and the dirt is prevented from damaging the booster pump 4 or blocking the spray head 13;
furthermore, a tail end valve 11 is arranged at a position, close to the spray head 13, of the branch water pipe 10, the spray head 13 is divided into eight directions, sealing rings 6 are arranged at the joints of the recovery water pipe 15 and the water inlet pipe 3, the joints of the water inlet pipe 3 and the booster pump 4 and the joints of the booster pump 4 and the water outlet pipe 16, bolts 7 are arranged at all the joints in a penetrating mode, the bolts 7 are fastened and connected with nuts 5, the tail end valve 11 can be screwed when the spray head 13 is blocked or damaged, then the spray head 13 is screwed down for maintenance or replacement, the spray head 13 is divided into eight directions, the spray irrigation range is wider, the spray irrigation degree of different areas is more uniform, water is saved, the bolts 7 are fastened and connected with the nuts 5, so that all the connection parts of the device are more compact, and the sealing performance of the joints is enhanced by the sealing rings 6, so that the joints are not prone to leak;
furthermore, one side of the recovery water pipe 15 close to the water collecting mechanism 1 is fixedly penetrated on the side wall of the reservoir 102, and one end of the recovery water pipe 15 in the reservoir 102 is bent downwards and is close to the bottom of the reservoir 102, so that when the recovery water stored in the reservoir 102 is extracted, the water in the reservoir 102 can be extracted more cleanly, and the sediment, impurities and other garbage are prevented from accumulating at the bottom of the reservoir 102;
in addition, the rubber pad 12 is arranged at the joint of the spray head 13 and the branch water pipe 10, so that the phenomenon that the screw structure at the joint of the spray head 13 and the branch water pipe 10 is screwed too hard to cause the spray head 13 to be unscrewed when needing to be replaced later can be avoided, and meanwhile, a certain sealing effect can be achieved for the joint;
the working principle is as follows: firstly, connecting a water outlet pipe 16 with each branch water pipe 10 through a tee joint 8, laying the water outlet pipe 16 and each branch water pipe 10 below the ground of the whole golf course according to a design scheme, vertically penetrating the branch water pipes 10 out of the ground at the position of a pre-designed spray head 13, connecting the branch water pipes with the spray head 13, then arranging a water collecting tank 101 at a low-lying position of the golf course, and collecting the tail end of the water collecting tank 101 above a reservoir 102;
when the water is irrigated or rained, the ground water flow is collected into the reservoir 102 along the water collecting tank 101, the grating 104 arranged above the reservoir 102 firstly intercepts large impurities such as weeds and fallen leaves in the collected water, the water level sensor 103 detects the water level height in the reservoir 102, when the water level reaches a set height, the water recovery valve 14 arranged on the water recovery pipe 15 is opened, the booster pump 4 pumps the water along the water recovery pipe 15, the pumped recovered water passes through the filtering mechanism 2, dirt with different particle diameters contained in the water is intercepted by the metal mesh 201, the dense mesh 202, the filtering cloth 203 and the filtering sponge 204 arranged in the filtering mechanism 2, the dirt is prevented from damaging the booster pump 4 or blocking the spray head 13, the booster pump 4 is also connected with the water inlet pipe 3, when the water level in the reservoir 102 does not reach the standard or is lack of water, the reservoir is externally connected, and the requirement of water for irrigation is kept, the recycling water pipe 15 is penetratingly fixed in the reservoir 102 near one end of the reservoir 102, and is bent downward to approach the bottom of the reservoir 102, the water in the reservoir 102 can be pumped more cleanly when water is pumped, so that the deposition of silt, sundries and other garbage at the bottom of the reservoir 102 is avoided, the sealing rings 6 are arranged at the joints of the water recovery pipe 15 and the water inlet pipe 3, the joints of the water inlet pipe 3 and the booster pump 4 and the joints of the booster pump 4 and the water outlet pipe 16, bolts 7 are arranged at all the joints in a penetrating way, the bolts 7 are fixedly connected with nuts 5, the connection of each connection part can be more compact, the sealing ring 6 enhances the sealing performance of the connection part, so that the connection part is not easy to leak water, a rubber pad 12 is arranged at the connection part of the spray head 13 and the branch water pipe 10, the joint of the branch water pipe 10 and the spray head 13 is in threaded connection, and the tail end of the branch water pipe 10 is provided with a tail end valve 11;
when shower nozzle 13 blocks up or damages, can screw up terminal valve 11, later screw down shower nozzle 13 and maintain or change, shower nozzle 13 divide into eight directions, the sprinkling irrigation scope is wider, different regional sprinkling irrigation degree is more even, it is more water-saving, water pipe 10 is provided with rubber pad 12 with shower nozzle 13 junction, can avoid shower nozzle 13 and the helicitic texture of water pipe 10 junction to be twisted too dead, can not twist down when leading to follow-up needs to change, can play certain sealed effect for the junction simultaneously, water pipe 10 is close to outlet pipe 16 department and installs water pipe main valve 9, steerable whole water pipe 10 and all shower nozzles 13 of being connected on water pipe 10, the concrete sprinkling irrigation scope of person of facilitating the use control.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A circulating water-saving sprinkling irrigation device for a golf course comprises a water collecting mechanism (1), a filtering mechanism (2), a water inlet pipe (3), a booster pump (4), a water outlet pipe (16) and a spray head (13), and is characterized in that one side of the water collecting mechanism (1) is connected with a water recovery pipe (15), the water recovery pipe (15) is provided with the filtering mechanism (2) in a penetrating way, the water recovery pipe (15) is provided with a water recovery valve (14), the tail end of the water recovery pipe (15) is connected with the water inlet pipe (3), the tail end of the water inlet pipe (3) is fixedly connected with the booster pump (4), the other side of the booster pump (4) is fixedly connected with the water outlet pipe (16), the water outlet pipe (16) is provided with a tee joint (8), the lower end of the spray head (13) is in threaded connection with a branch water pipe (10), and one end of the branch water pipe (10), far away from the spray head (13), is fixedly connected with the tee joint (8), and a branch water pipe main valve (9) is arranged on the branch water pipe (10) close to the tee joint (8).
2. The circulating water-saving sprinkling irrigation device for the golf course according to claim 1, wherein the water collecting mechanism (1) comprises a water collecting tank (101), a water storage tank (102), a water level sensor (103) and a grating (104), the tail end of the water collecting tank (101) is erected at the upper end of the water storage tank (102), the grating (104) is fixed above the tank body of the water storage tank (102) and close to the water collecting tank (101), and the water level sensor (103) is fixedly installed on the side wall of the water storage tank (102) and close to the grating (104).
3. The circulating water-saving sprinkling irrigation device for the golf course according to claim 1, wherein the filtering mechanism (2) comprises a metal net (201), a fine mesh net (202), a filtering cloth (203), a filtering sponge (204) and an outer wall (205), the metal net (201) is fixedly connected to the outer wall (205), the fine mesh net (202) is positioned on one side of the metal net (201), the fine mesh net (202) is fixedly connected with the outer wall (205), the filtering cloth (203) is positioned on one side of the fine mesh net (202) far away from the metal net (201), the filtering sponge (204) is fixedly connected to the outer wall (205), and the filtering sponge (204) is positioned on one side of the filtering cloth (203) far away from the fine mesh net (202).
4. A circulating water-saving sprinkling irrigation apparatus for golf courses according to claim 1, wherein the branch water pipe (10) is provided with a terminal valve (11) near the sprinkler head (13), and the sprinkler head (13) is divided into eight directions.
5. The circulating water-saving sprinkling irrigation device for the golf course according to claim 1, wherein sealing rings (6) are arranged at the joints of the recovery water pipe (15) and the water inlet pipe (3), the joints of the water inlet pipe (3) and the booster pump (4), and the joints of the booster pump (4) and the water outlet pipe (16), and bolts (7) are arranged at the joints in a penetrating manner, and the bolts (7) are fixedly connected with nuts (5).
6. The circulating water-saving sprinkling irrigation equipment for the golf course according to claim 1, wherein one side of the recovery water pipe (15) close to the water collecting mechanism (1) is fixedly penetrated on the side wall of the reservoir (102), and one end of the recovery water pipe (15) in the reservoir (102) is bent downwards to be close to the bottom of the reservoir (102).
7. A circulating water-saving sprinkling irrigation equipment for golf courses according to claim 1, characterized in that a rubber pad (12) is installed at the connection of the nozzle (13) and the branch water pipe (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121787532.6U CN215122857U (en) | 2021-08-03 | 2021-08-03 | Circulated formula water conservation sprinkling irrigation equipment for golf course |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121787532.6U CN215122857U (en) | 2021-08-03 | 2021-08-03 | Circulated formula water conservation sprinkling irrigation equipment for golf course |
Publications (1)
Publication Number | Publication Date |
---|---|
CN215122857U true CN215122857U (en) | 2021-12-14 |
Family
ID=79405778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121787532.6U Active CN215122857U (en) | 2021-08-03 | 2021-08-03 | Circulated formula water conservation sprinkling irrigation equipment for golf course |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN215122857U (en) |
-
2021
- 2021-08-03 CN CN202121787532.6U patent/CN215122857U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205623581U (en) | High -efficient omnidirectional gardens irrigation equipment | |
CN210184002U (en) | Prevent soil erosion and water loss's ecological embankment that protects | |
CN212103898U (en) | Ecological bank protection in river course | |
CN110820662A (en) | Dust fall spray circulation system and method for collecting secondary utilization of road rainwater | |
CN209002528U (en) | A kind of green plant rainfall irrigation device of vertical planting road | |
CN209227589U (en) | A kind of pile foundation joist retaining wall | |
CN205848212U (en) | A kind of Water saving type watering arrangement being applicable to hillside fields | |
CN214229236U (en) | Urban rainwater collection and irrigation device | |
CN219840099U (en) | Waterproof soil loss slope protection structure | |
CN205357488U (en) | A irrigation equipment for roof greening lawn | |
CN205611431U (en) | Watering integrated device is collected in gardens | |
CN215122857U (en) | Circulated formula water conservation sprinkling irrigation equipment for golf course | |
CN117432026A (en) | Rainwater recovery processing equipment | |
CN211353410U (en) | Sloping field tea garden infiltration pipe water intaking drip irrigation system that catchments | |
CN209861839U (en) | Gardens rainwater circulating device | |
CN207854694U (en) | It is a kind of can be to device that farmland is fully irrigated | |
CN214993540U (en) | Sand-blocking type water and soil conservation ecological bank protection | |
CN215836112U (en) | Roof greening rainwater collection and irrigation device based on sponge city idea | |
CN213907816U (en) | Afforestation is with independently retaining drip irrigation equipment | |
CN212696990U (en) | Irrigation and water conservancy water-saving irrigation device | |
CN211714090U (en) | Dust fall spray circulation system for collecting secondary utilization of road rainwater | |
CN213847952U (en) | Mineral rock and soil mining area ecological protection restores structure | |
CN212677977U (en) | Afforestation water-saving irrigation device | |
CN213306643U (en) | Water-saving type greening irrigation system | |
CN210470548U (en) | Water storage and irrigation device for rocky desertification area |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |