CN110843695B - 5G is detective camera for car networking with vapor proof effect - Google Patents

5G is detective camera for car networking with vapor proof effect Download PDF

Info

Publication number
CN110843695B
CN110843695B CN201911150331.2A CN201911150331A CN110843695B CN 110843695 B CN110843695 B CN 110843695B CN 201911150331 A CN201911150331 A CN 201911150331A CN 110843695 B CN110843695 B CN 110843695B
Authority
CN
China
Prior art keywords
shell
plate
camera body
camera
frame
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
CN201911150331.2A
Other languages
Chinese (zh)
Other versions
CN110843695A (en
Inventor
冷羽
胡继康
葛鑫
郭迟
杨桐
崔琳
魏佳慧
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.)
Yancheng Jiyan Intelligent Technology Co.,Ltd.
Original Assignee
Yancheng Jiyan Intelligent 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 Yancheng Jiyan Intelligent Technology Co ltd filed Critical Yancheng Jiyan Intelligent Technology Co ltd
Priority to CN201911150331.2A priority Critical patent/CN110843695B/en
Publication of CN110843695A publication Critical patent/CN110843695A/en
Application granted granted Critical
Publication of CN110843695B publication Critical patent/CN110843695B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/005Connection with the vehicle part
    • B60R2011/0052Connection with the vehicle part using screws, bolts, rivets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessories Of Cameras (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses a detection camera with a waterproof and steam-proof effect for a 5G car networking, which comprises a shell, wherein the top of the shell is connected with a top plate, a support frame is arranged in the shell, a first spring is connected above the support frame, fans are arranged at the left end and the right end of the support frame, a vertical rod is arranged in the middle of the bottom of the support frame, an electric telescopic rod is arranged on the outer side of the vertical rod, the tail end of the vertical rod penetrates through the interior of the connecting frame, a camera body is connected to the bottom of the connecting frame, handles are symmetrically arranged at the bottom of the shell, a fixing plate is arranged below the handles, a handle is arranged below the fixing plate, a pressing plate is arranged below the handle, and a second spring is connected to the upper surface of the pressing plate. This 5G is detective camera for car networking with vapor proof effect not only can prevent to make a video recording the body and fall the ash when not using, is convenient for take out the body of making a video recording moreover.

Description

5G is detective camera for car networking with vapor proof effect
Technical Field
The invention relates to the technical field of detective cameras, in particular to a detective camera with a waterproof vapor effect for a 5G vehicle networking.
Background
The detective camera is frequently used in the 5G vehicle networking at present, the 5G vehicle networking is for establishing and perfecting a manned test specification and somatosensory test evaluation system of an automatic driving closed test field, and the detective camera is used for monitoring the automobile in the system.
At present, the commonly used detective camera for the 5G car networking can not prevent the camera body from falling ash when not in use, but also is not convenient for taking out the camera body, therefore, the detective camera for the 5G car networking with the waterproof vapor effect is provided so as to solve the problem provided in the above.
Disclosure of Invention
The invention aims to provide a detective camera for a 5G vehicle networking, which has a waterproof effect, and solves the problems that the prior commonly used detective camera for the 5G vehicle networking, which is provided by the background technology, can not prevent dust from falling off when a camera body is not used, and is inconvenient to take out the camera body.
In order to achieve the purpose, the invention provides the following technical scheme: A5G automobile networking detection camera with a waterproof effect comprises a shell, wherein the top of the shell is connected with a top plate, the left end and the right end of the top plate are respectively provided with a screw rod in a penetrating manner, a limiting groove is formed in the top plate, the bottom of the limiting groove is connected with a connecting groove, a cover plate is arranged in the middle of the top plate, a fixing block is fixedly arranged on the outer surface of the cover plate, a supporting frame is arranged in the shell, a first spring is connected to the upper portion of the supporting frame, fans are arranged at the left end and the right end of the supporting frame, a vertical rod is arranged in the middle of the bottom of the supporting frame, an electric telescopic rod is arranged on the outer side of the vertical rod, a connecting rod is arranged on the outer side of the electric telescopic rod, the tail end of the vertical rod is arranged in the connecting frame in a penetrating manner, the bottom of the connecting frame is connected with a camera body, and handles are symmetrically arranged at the bottom of the shell, and the fixed plate is installed to the below of handle, the handle is installed to the below of fixed plate, the clamp plate is installed to the below of handle, and the upper surface of clamp plate is connected with the second spring.
Preferably, both ends of the bottom of the shell are of hollow structures, and the fixing plate arranged inside the shell is of a net structure.
Preferably, a rotating structure is formed between the cover plate and the top plate, and the rotating angle of the cover plate ranges from 0 to 90 degrees.
Preferably, the connection mode between the support frame and the shell is a clamping connection, and the sum of the height of the support frame and the maximum compression amount of the first spring is larger than the distance between the support frame and the upper surface of the top plate.
Preferably, the connection mode between the connecting rod monomers is hinged, and a triangular structure is formed between the connecting rod and the vertical rod.
Preferably, a rotating structure is formed between the pressing plate and the shell, and a circular structure is formed between the pressing plate monomers.
Compared with the prior art, the invention has the beneficial effects that: the detective camera with the vapor-proof effect for the 5G car networking can prevent the camera body from falling ash when not in use and is convenient to take out the camera body;
1. because the connecting rod monomers are hinged with each other, the connecting rod is hinged with the support frame, and the connecting rod is hinged with the connecting frame, the camera body can be conveniently moved in the shell or outside the shell through the linkage structure formed among the connecting rod, the connecting frame and the camera body, and the camera body is prevented from falling ash when not in use;
2. the two ends of the bottom of the shell are both hollow structures, so that air can enter the shell, the fan can fan the camera body to prevent water vapor from being on the camera body, and the fixing plate is of a net structure and can prevent dust from entering the device;
3. through the revolution mechanic that apron and roof constitute to fixing apron and roof, being convenient for simultaneously take off the apron, first spring is driving the support frame upward movement together, is convenient for take out the body of will making a video recording from the top of shell.
Drawings
FIG. 1 is a front sectional view of the present invention;
FIG. 2 is a schematic bottom view of the connection between the housing and the pressure plate of the present invention;
FIG. 3 is a schematic top view of the connection between the top plate and the cover plate according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: 1. a housing; 2. a top plate; 3. a screw; 4. a limiting groove; 5. connecting grooves; 6. a cover plate; 7. a fixed block; 8. a support frame; 9. a first spring; 10. a fan; 11. a vertical rod; 12. an electric telescopic rod; 13. a connecting rod; 14. a connecting frame; 15. a camera body; 16. a handle; 17. a fixing plate; 18. a handle; 19. pressing a plate; 20. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: A5G detective camera with a waterproof effect for the car networking comprises a shell 1, a top plate 2, a screw rod 3, a limit groove 4, a connecting groove 5, a cover plate 6, a fixing block 7, a supporting frame 8, a first spring 9, a fan 10, a vertical rod 11, an electric telescopic rod 12, a connecting rod 13, a connecting frame 14, a camera shooting body 15, a handle 16, a fixing plate 17, a handle 18, a pressing plate 19 and a second spring 20, wherein the top of the shell 1 is connected with the top plate 2, the left end and the right end of the top plate 2 are respectively provided with the screw rod 3 in a penetrating way, both ends of the bottom of the shell 1 are of a hollow structure, the fixing plate 17 arranged inside the shell 1 is of a net structure, the fixing plate 17 can prevent dust from entering the device, the limit groove 4 is arranged inside the top plate 2, the connecting groove 5 is connected with the bottom of the limit groove 4, the cover plate 6 is arranged in the middle position of the top plate 2, and the fixing block 7 is fixedly arranged on the outer surface of the cover plate 6, a rotating structure is formed between the cover plate 6 and the top plate 2, the rotating angle range of the cover plate 6 is 0-90 degrees, the cover plate 6 and the top plate 2 are convenient to fix, a support frame 8 is arranged in the shell 1, a first spring 9 is connected above the support frame 8, the support frame 8 and the shell 1 are connected in a clamping manner, the sum of the height of the support frame 8 and the maximum compression amount of the first spring 9 is larger than the distance from the support frame 8 to the upper surface of the top plate 2, the first spring 9 is convenient to pop out from the top of the top plate 2, fans 10 are arranged at the left end and the right end of the support frame 8, a vertical rod 11 is arranged in the middle position of the bottom of the support frame 8, an electric telescopic rod 12 is arranged on the outer side of the vertical rod 11, a connecting rod 13 is arranged on the outer side of the electric telescopic rod 12, the tail end of the vertical rod 11 penetrates through the connecting frame 14, and the bottom of the connecting frame 14 is connected with a camera body 15, handle 16 is installed to the bottom symmetry of shell 1, and fixed plate 17 is installed to the below of handle 16, and handle 18 is installed to the below of fixed plate 17, and clamp plate 19 is installed to the below of handle 18, and the upper surface of clamp plate 19 is connected with second spring 20.
As shown in fig. 1, the connection mode between the single connecting rods 13 is hinged, and a triangular structure is formed between the connecting rod 13 and the vertical rod 11, so that the distance between the single connecting rods 13 can be conveniently adjusted.
As shown in fig. 4, a rotating structure is formed between the pressing plate 19 and the housing 1, and a circular structure is formed between the pressing plates 19 alone, so that the pressing plate 19 can protect the camera body 15.
The working principle is as follows: when the detection camera with the waterproof effect for the 5G car networking is used, the top plate 2 is fixed inside a car through the screw rod 3, the connecting rod 13 is hinged with the support frame 8 and the connecting rod 13 is hinged with the connecting frame 14, the connecting rod 13, the connecting frame 14 and the camera body 15 slide inside the shell 1 through the expansion and contraction of the electric telescopic rod 12, the connecting frame 14 is installed inside the vertical rod 11 in a penetrating mode, the camera body 15 is moved out of the shell 1 along with the expansion and contraction of the electric telescopic rod 12, so that the inside of the car can be monitored, the pressing plate 19 is connected with the shell 1 through the hinge, the pressing plate 19 is pushed during the movement of the camera body 15, when the camera body 15 moves into the shell 1, the pressing plate 19 can be closed through the expansion and contraction of the second spring 20, and the camera body 15 can be protected through the pressing plate 19, when the camera body 15 is not used, dust on the surface of the camera body 15 is prevented from falling, because both ends of the bottom of the shell 1 are of hollow structures, wind can enter the shell 1, the fan 10 can fan the camera body 15, and water vapor on the camera body 15 is prevented, as shown in fig. 4, the fixing plate 17 is of a net structure, so that dust can be prevented from entering the device, the handle 18 is pulled outwards, the handle 16 slides downwards, the handle 16 pushes the fixing plate 17 to move downwards, the fixing plate 17 is convenient to take out from the shell 1, and the surface of the fixing plate 17 can be cleaned;
insert 6 outer fixed surface's of apron fixed block 7 in spacing groove 4 and spread groove 5 to rotatory apron 6 to 90, thereby fix apron 6 and roof 2, be convenient for simultaneously take off apron 6, first spring 9 is driving support frame 8 rebound together, is convenient for take out camera body 15 from the top of shell 1, this is exactly this 5G car networking with spy probe camera's that has the vapor proof effect whole course of work.
Those not described in detail in this specification are within the skill of the art. The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (2)

1. The utility model provides a 5G is detective camera for car networking with vapor proof effect, includes shell (1), its characterized in that: the top of the shell (1) is connected with a top plate (2), the left end and the right end of the top plate (2) are respectively provided with a screw rod (3) in a penetrating manner, a limiting groove (4) is formed in the top plate (2), the bottom of the limiting groove (4) is connected with a connecting groove (5), a cover plate (6) is installed at the middle position of the top plate (2), a fixing block (7) is fixedly installed on the outer surface of the cover plate (6), a supporting frame (8) is installed in the shell (1), a first spring (9) is connected above the supporting frame (8), fans (10) are installed at the left end and the right end of the supporting frame (8), a vertical rod (11) is installed at the middle position of the bottom of the supporting frame (8), an electric telescopic rod (12) is installed on the outer side of the vertical rod (11), a connecting rod (13) is installed on the outer side of the electric telescopic rod (12), and the tail end of the vertical rod (11) is installed in the connecting frame (14) in a penetrating manner, the bottom of the connecting frame (14) is connected with a camera body (15), handles (16) are symmetrically arranged at the bottom of the shell (1), a fixing plate (17) is arranged below the handles (16), a handle (18) is arranged below the fixing plate (17), a pressing plate (19) is arranged below the handle (18), and the upper surface of the pressing plate (19) is connected with a second spring (20);
both ends of the bottom of the shell (1) are of hollow structures, and a fixing plate (17) arranged in the shell (1) is of a net structure;
a rotating structure is formed between the cover plate (6) and the top plate (2), and the rotating angle range of the cover plate (6) is 0-90 degrees;
the support frame (8) is connected with the shell (1) in a clamping manner, and the sum of the height of the support frame (8) and the maximum compression amount of the first spring (9) is greater than the distance from the support frame (8) to the upper surface of the top plate (2);
the connecting mode between the single connecting rods (13) is hinged, and a triangular structure is formed between the connecting rods (13) and the vertical rods (11);
a rotating structure is formed between the pressing plate (19) and the shell (1), and a circular structure is formed between the pressing plate (19) and the single bodies.
2. The detective camera with waterproof and vapor-proof effects for the 5G internet of vehicles according to claim 1, characterized in that: when the detection camera with the waterproof effect for the 5G car networking is used, the top plate (2) is fixed inside a car through the screw (3), the connecting rods (13) are arranged among the single bodies, the connecting rods (13) are hinged with the supporting frame (8) and the connecting rods (13) are hinged with the connecting frame (14), the connecting rods (13), the connecting frame (14) and the camera body (15) slide inside the shell (1) through the extension and retraction of the electric telescopic rods (12), the connecting frame (14) is installed inside the vertical rods (11) in a penetrating mode, the camera body (15) is moved out of the shell (1) along with the extension and retraction of the electric telescopic rods (12), so that the inside of the car can be monitored, the pressing plate (19) is connected with the shell (1) through the hinge, and the camera body (15) pushes the pressing plate (19) in the moving process, when the camera body (15) moves to the inside of the shell (1), the pressure plate (19) can be closed through the extension and contraction of the second spring (20), the camera body (15) can be protected through the pressure plate (19), when the camera body (15) is not used, the surface of the camera body (15) is prevented from falling ash, because both ends of the bottom of the shell (1) are of hollow structures, wind can enter the shell (1), the fan (10) can fan the camera body (15) to prevent water vapor on the camera body (15), the fixing plate (17) is of a net structure and can prevent dust from entering the device and pull the handle (18) outwards, the handle (16) is slid downwards, the fixed plate (17) is pushed by the handle (16) to move downwards, the fixed plate (17) is convenient to take out from the shell (1), and the surface of the fixed plate (17) can be cleaned;
insert spacing groove (4) and spread groove (5) with fixed block (7) of apron (6) surface fixed mounting to rotatory apron (6) to 90, thereby fix apron (6) and roof (2), be convenient for take off apron (6) simultaneously, first spring (9) are driving support frame (8) upward movement together, are convenient for take out camera body (15) from the top of shell (1).
CN201911150331.2A 2019-11-21 2019-11-21 5G is detective camera for car networking with vapor proof effect Active CN110843695B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911150331.2A CN110843695B (en) 2019-11-21 2019-11-21 5G is detective camera for car networking with vapor proof effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911150331.2A CN110843695B (en) 2019-11-21 2019-11-21 5G is detective camera for car networking with vapor proof effect

Publications (2)

Publication Number Publication Date
CN110843695A CN110843695A (en) 2020-02-28
CN110843695B true CN110843695B (en) 2021-10-08

Family

ID=69603465

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911150331.2A Active CN110843695B (en) 2019-11-21 2019-11-21 5G is detective camera for car networking with vapor proof effect

Country Status (1)

Country Link
CN (1) CN110843695B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202053973U (en) * 2011-04-19 2011-11-30 深圳市汉华安道科技有限责任公司 Parking ancillary product and car
CN203698146U (en) * 2014-02-28 2014-07-09 观致汽车有限公司 Driving auxiliary device
CN105649439A (en) * 2016-01-20 2016-06-08 钟伟英 Transmission system with function of preventing children from falling off window
CN106450940A (en) * 2016-11-02 2017-02-22 柴建儿 Power supply device capable of being self-locked
CN206294255U (en) * 2016-12-22 2017-06-30 卢绿绿 A kind of pilotless automobile rain-proof camera
CN107139856A (en) * 2017-05-17 2017-09-08 东莞市联洲知识产权运营管理有限公司 A kind of protection structure applied to new-energy automobile rearview camera
US9989835B1 (en) * 2017-02-09 2018-06-05 Cnh Industrial America Llc System and method for mounting a camera on a work vehicle
KR101935584B1 (en) * 2018-06-07 2019-01-04 주식회사 퓨처홀딩스 Retractable Cover for Vehicle using Solar Charging
CN208452918U (en) * 2018-06-01 2019-02-01 腾讯科技(深圳)有限公司 A kind of streetscape acquisition equipment and streetscape collecting vehicle
CN208730901U (en) * 2018-09-04 2019-04-12 深圳途沃得科技有限公司 Bracket component for automobile data recorder

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202053973U (en) * 2011-04-19 2011-11-30 深圳市汉华安道科技有限责任公司 Parking ancillary product and car
CN203698146U (en) * 2014-02-28 2014-07-09 观致汽车有限公司 Driving auxiliary device
CN105649439A (en) * 2016-01-20 2016-06-08 钟伟英 Transmission system with function of preventing children from falling off window
CN106450940A (en) * 2016-11-02 2017-02-22 柴建儿 Power supply device capable of being self-locked
CN206294255U (en) * 2016-12-22 2017-06-30 卢绿绿 A kind of pilotless automobile rain-proof camera
US9989835B1 (en) * 2017-02-09 2018-06-05 Cnh Industrial America Llc System and method for mounting a camera on a work vehicle
CN107139856A (en) * 2017-05-17 2017-09-08 东莞市联洲知识产权运营管理有限公司 A kind of protection structure applied to new-energy automobile rearview camera
CN208452918U (en) * 2018-06-01 2019-02-01 腾讯科技(深圳)有限公司 A kind of streetscape acquisition equipment and streetscape collecting vehicle
KR101935584B1 (en) * 2018-06-07 2019-01-04 주식회사 퓨처홀딩스 Retractable Cover for Vehicle using Solar Charging
CN208730901U (en) * 2018-09-04 2019-04-12 深圳途沃得科技有限公司 Bracket component for automobile data recorder

Also Published As

Publication number Publication date
CN110843695A (en) 2020-02-28

Similar Documents

Publication Publication Date Title
CN210349899U (en) Novel explosion-proof car battery
CN110843695B (en) 5G is detective camera for car networking with vapor proof effect
CN110601032A (en) Heat conduction steam circulation anti-liquefaction power box
CN211391727U (en) Unmanned vehicle monitoring equipment with shockproof function
CN205982124U (en) Road surface damaged condition detection device
CN213902663U (en) Intelligent thermoscope that protection nature is good
CN111142629B (en) Heat collection and dust collection integrated device for computer mainframe
CN114979447A (en) Security protection camera with face identification record function
CN208874668U (en) A kind of reversed driving means of video based on alarm signal
CN209792161U (en) Magnetic core fritting furnace blows dirt device
CN215453573U (en) Waterproof PLC switch board
CN213507952U (en) Road detection device convenient to move
CN212685918U (en) Unmanned aerial vehicle battery fixing base of plant protection
CN215314139U (en) Dynamic tracking monitoring equipment
CN216285358U (en) Wind speed detector
CN219473202U (en) Crack detection device for highway bridge with adjustable detection angle
CN214069144U (en) Electrical control cabinet with protection function
CN215466938U (en) Dust removal and recovery device for ore processing workshop
CN210860381U (en) Multi-protocol data acquisition device
CN216013702U (en) Device for detecting foreign matters on vehicle chassis in multiple environments through panoramic camera
CN215619971U (en) Polarizing plate pad pasting device with high-efficient dust removal
CN212407587U (en) Multi-point synchronous atmospheric sampling device for environment detection gas
CN111725445A (en) Storage battery box body for automobile accessories
CN209961691U (en) CCD detection mechanism of inductance element
CN210436986U (en) Wind screen of automobile skylight

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210825

Address after: 224000 Building 1, intelligent terminal industry pioneer park, high tech Zone, Yandu District, Yancheng City, Jiangsu Province (d)

Applicant after: Yancheng Jiyan Intelligent Technology Co.,Ltd.

Address before: 224000 Building 1, intelligent terminal industry pioneer park, high tech Zone, Yandu District, Yancheng City, Jiangsu Province

Applicant before: Co., Ltd of intelligent terminal industrial research institute of Yancheng Jinlin University

GR01 Patent grant
GR01 Patent grant