CN215451865U - Convenient to use's intelligent charging stake head that charges - Google Patents

Convenient to use's intelligent charging stake head that charges Download PDF

Info

Publication number
CN215451865U
CN215451865U CN202121650580.0U CN202121650580U CN215451865U CN 215451865 U CN215451865 U CN 215451865U CN 202121650580 U CN202121650580 U CN 202121650580U CN 215451865 U CN215451865 U CN 215451865U
Authority
CN
China
Prior art keywords
rod
charging
head
charging head
sleeve
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
CN202121650580.0U
Other languages
Chinese (zh)
Inventor
高有堂
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.)
Hangzhou Guokong Electric Technology Co ltd
Original Assignee
Hangzhou Guokong Electric 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 Hangzhou Guokong Electric Technology Co ltd filed Critical Hangzhou Guokong Electric Technology Co ltd
Priority to CN202121650580.0U priority Critical patent/CN215451865U/en
Application granted granted Critical
Publication of CN215451865U publication Critical patent/CN215451865U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Landscapes

  • Tents Or Canopies (AREA)

Abstract

The utility model discloses a charging head of an intelligent charging pile, which is convenient to use and comprises a charging head, wherein one side of the charging head is provided with a connecting port, one side of the two ends of the connecting port is provided with a telescopic groove, one side of the two ends of the connecting port is provided with a fixing assembly, the top and the bottom of the charging head are provided with first sliding grooves, sliding blocks are arranged in the two groups of first sliding grooves in a sliding manner, sleeve blocks are arranged at the top and the bottom, which are far away from each other, of the two groups of sliding blocks, and a disc is sleeved at one side of the outer side of each sleeve block; according to the utility model, through the mutual matching of the telescopic block, the through groove, the adjusting rod, the push rod, the telescopic groove, the first spring and the hinge rod, the charging head can be fixed, the falling-off of the charging head caused by different vehicle types is avoided, the telescopic block is contracted by pressing the push rod during charging, the charging head is inserted into the charging port, and the push rod is loosened, so that the stability of the charging head is ensured through fixing, and the interruption of charging caused by the falling-off of the charging head is avoided.

Description

Convenient to use's intelligent charging stake head that charges
Technical Field
The utility model relates to the technical field of charging heads, in particular to a charging head of an intelligent charging pile, which is convenient to use.
Background
The charging head has the function similar to that of a refueling machine head in a gas station, can be fixed on the charging pile, the charging pile is arranged in public buildings (public buildings, shopping malls, public parking lots and the like) and residential area parking lots or charging stations, and can charge various types of electric vehicles according to different voltage grades, the input end of the charging pile is directly connected with an alternating current power grid, and the output end of the charging pile is provided with a charging plug for charging the electric vehicles;
but there is certain not enough when current head that charges uses:
1. the existing charging head can meet the rain weather when in use, but the existing charging head is a device without rainwater, when in rainy days for charging, rainwater can flow into a charging port of an automobile along an automobile body, so that the charging port and the charging head are easily corroded, the charging performance is reduced, the short circuit of the charging port can be caused, the fire of the automobile can be caused in serious conditions, and the personal and property safety can be damaged;
2. the current head that charges can be given various different motorcycle types to charge, and the mouth that charges that every motorcycle type was made is big or small to some extent different, may cause the head that charges to drop on the way charging for the interruption of charging causes the waste of time, and the child that probably has some stubborn skin can pull the head that charges when charging moreover, also can cause the interruption of charging like this, has influenced the efficiency of charging.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intelligent charging pile charging head convenient to use, and aims to solve the existing problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a convenient to use's intelligent charging stake head that charges, includes the head that charges, one side of the head that charges is equipped with the connector, one side at connector both ends is equipped with flexible groove, one side at connector both ends is equipped with fixed subassembly, the top and the bottom of the head that charges are equipped with first spout, and are two sets of the inside slip of first spout is equipped with the slider, and is two sets of the top and the bottom that the slider was kept away from each other are equipped with the cover piece, one side cover in the cover piece outside is equipped with the disc, the top of disc one side articulates there is the handle, the one end of handle is equipped with the second spout, the outside cover of cover piece is equipped with the sucking disc, the intermediate position department of sucking disc one side is equipped with the bellows, the top of sucking disc one side is equipped with gassing subassembly.
Preferably, fixed subassembly is including flexible piece, leading to groove, regulation pole, push rod, first spring, hinge bar, articulated slab and connecting block, first spring is located the one end that flexible groove was kept away from each other, and is two sets of one side that first spring was kept away from each other is equipped with flexible piece, and is two sets of one side of flexible piece is equipped with the articulated slab, and is two sets of one side at articulated slab top is equipped with the connecting block, the push rod is located the top of the first opposite side that charges, the both ends of push rod one side are equipped with the hinge bar, and are two sets of the opposite side of hinge bar articulates there is the regulation pole, and is two sets of one side of keeping away from the hinge bar at the regulation pole top is equipped with logical groove.
Preferably, the gassing subassembly includes check valve, bracing piece, second spring, sleeve, telescopic link, pull rod, choke plate and slide bar, the check valve is located the top of sucking disc one side, the inside one side of check valve is equipped with the bracing piece, the intermediate position department of bracing piece one side is equipped with the sleeve, the inside one side of sleeve is equipped with the second spring, one side of second spring is equipped with the telescopic link, one side of telescopic link is equipped with the choke plate, the intermediate position department of choke plate one side articulates there is the pull rod, one side at pull rod both ends is equipped with the slide bar.
Preferably, the diameters of the through holes on two sides in the one-way valve are different, and the one-way valve is matched with the air baffle plate.
Preferably, one side of the inside of the one-way valve is provided with a groove, one side of the groove is provided with an annular rubber pad, and the air baffle is matched with the annular rubber pad.
Preferably, the bellows is wavy, the bellows is located the intermediate position department of sucking disc one side, the bellows cover is in the head outside that charges.
Compared with the prior art, the utility model has the beneficial effects that: the intelligent charging pile charging head convenient to use;
1. through the corrugated pipe, the sucker, the disc, the sliding block, the first sliding groove, the second sliding groove, the handle, the sleeve block, the one-way valve, the supporting rod, the second spring, the sleeve, the telescopic rod and the pull rod are matched with each other, the rainwater can be prevented from intruding in the process of charging, after the charging head is inserted into a charging port, the sleeve block is pushed, the corrugated pipe and the sucker are completely adsorbed on the shell of the automobile, so that the rainwater can be prevented from entering, after the charging is finished, the handle is pulled to drive the pull rod to move, then the air blocking plate is pulled through the pull rod, so that the gas enters the inside of the sucker, the adsorption is released, the rainwater is prevented from intruding through the protection of the sucker, and the short circuit of the electrifying head caused by the rainwater is prevented;
2. through flexible piece, lead to groove, adjust pole, push rod, flexible groove, mutually supporting between first spring and the hinge bar, can fix the head that charges, avoid the difference of motorcycle type to cause the head that charges to drop, press the push rod when charging and make flexible piece shrink, will charge in the head inserts the charging port, loosen the push rod can, through fixed the stability of the head that charges of having ensured, avoid the head that charges to drop and cause the interrupt that charges.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top cross-sectional view of 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 charging head; 2. a connecting port; 3. a telescopic block; 4. a through groove; 5. adjusting a rod; 6. a bellows; 7. a suction cup; 8. a disc; 9. a slider; 10. a push rod; 11. a first chute; 12. a second chute; 13. a handle; 14. sleeving blocks; 15. a telescopic groove; 16. a first spring; 17. a hinged lever; 18. a one-way valve; 19. a support bar; 20. a second spring; 21. a sleeve; 22. a telescopic rod; 23. a pull rod; 24. a choke plate; 25. a hinge plate; 26. connecting blocks; 27. a slide bar.
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 an embodiment: the utility model provides a convenient to use's intelligent charging stake head that charges, including first 1 that charges, one side of first 1 that charges is equipped with connector 2, one side at connector 2 both ends is equipped with flexible groove 15, the fixed of flexible piece 3 of being convenient for is accomodate, one side at connector 2 both ends is equipped with fixed subassembly, the top and the bottom of first 1 that charges are equipped with first spout 11, the inside slip of two sets of first spout 11 is equipped with slider 9, can remove the regulation to sucking disc 7, the top and the bottom of keeping away from each other of two sets of slider 9 are equipped with sleeve block 14, one side cover in the 14 outside of sleeve block is equipped with disc 8, be convenient for protect sucking disc 7, the top of disc 8 one side articulates there is handle 13, the one end of handle 13 is equipped with second spout 12, the outside cover of sleeve block 14 is equipped with sucking disc 7, the intermediate position department of sucking disc 7 one side is equipped with bellows 6, the top of sucking disc 7 one side is equipped with the gassing subassembly.
Further, fixed subassembly is including flexible piece 3, lead to groove 4, adjust pole 5, push rod 10, first spring 16, hinge bar 17, articulated slab 25 and connecting block 26, first spring 16 is located the one end of keeping away from each other in flexible groove 15, one side that two sets of first springs 16 kept away from each other is equipped with flexible piece 3, one side of two sets of flexible pieces 3 is equipped with articulated slab 25, one side at two sets of articulated slab 25 tops is equipped with connecting block 26, push rod 10 is located the top of 1 opposite side of the head that charges, the both ends of push rod 10 one side are equipped with hinge bar 17, the opposite side of two sets of hinge bar 17 articulates there is regulation pole 5, one side that hinge bar 17 was kept away from at two sets of regulation pole 5 tops is equipped with logical groove 4, can fix connector 2.
Further, the deflation component comprises a one-way valve 18, a support rod 19, a second spring 20, a sleeve 21, a telescopic rod 22, a pull rod 23, a choke plate 24 and a slide rod 27, the one-way valve 18 is located at the top of one side of the suction cup 7, the support rod 19 is arranged on one side inside the one-way valve 18, the sleeve 21 is arranged at the middle position of one side of the support rod 19, the second spring 20 is arranged on one side inside the sleeve 21, the telescopic rod 22 is arranged on one side of the second spring 20, the choke plate 24 is arranged on one side of the telescopic rod 22, the pull rod 23 is hinged to the middle position of one side of the choke plate 24, the slide rod 27 is arranged on one side of the two ends of the pull rod 23, and deflation of the suction cup 7 is facilitated.
Further, the diameter of the through hole on the two sides of the inside of the check valve 18 is different, and the check valve 18 and the choke plate 24 are matched with each other, so that the choke plate 24 can move.
Furthermore, a groove is formed in one side of the interior of the check valve 18, and an annular rubber pad is arranged on one side of the groove, so that the air baffle plate 24 is matched with the annular rubber pad, and air is effectively prevented from entering the check valve.
Furthermore, bellows 6 is wavy, and bellows 6 is located the intermediate position department of sucking disc 7 one side, and bellows 6 cover is in the head 1 outside that charges, prevents that gas from flowing in from the centre.
The working principle is as follows: when the charging device is used, the push rod 10 is pressed, the two groups of hinged rods 17 are driven to push through the movement of the push rod 10, then the two groups of adjusting rods 5 slightly rotate under the pushing action of the two groups of hinged rods 17, the two groups of connecting blocks 26 are driven through the rotation of the two groups of adjusting rods 5, the two groups of air blocking plates 24 are driven by the two groups of connecting blocks 26 to be combined to mutually close positions, the two groups of telescopic blocks 3 are driven by the two groups of air blocking plates 24 to be contracted, then the push rod 10 is loosened after the charging head 1 is inserted into a charging port, and the two groups of telescopic blocks 3 are pushed to abut against the inner wall of the charging port through the elasticity of the two groups of first springs 16;
then the sleeve block 14 is pushed to move leftwards until the suction cup 7 is completely adsorbed on the shell of the automobile, after charging is completed, the handle 13 is pulled to drive the pull rod 23 to move, then the choke plate 24 is pulled through the pull rod 23, gas enters the inside of the suction cup 7, then the suction cup 7 loosens the automobile body, then the handle 13 is loosened, the telescopic rod 22 is driven to reset under the pulling of the elastic force of the second spring 20, the telescopic rod 22 drives the choke plate 24 to move, then the pull rod 23 is pulled through the choke plate 24 to move, and then the handle 13 is pulled through the pull rod 23 to reset.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, e.g., as either a fixed connection or a removable connection, unless expressly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (6)

1. The utility model provides a convenient to use's intelligent charging stake head that charges, includes first (1) that charges, its characterized in that: a connector (2) is arranged on one side of the charging head (1), a telescopic groove (15) is arranged on one side of the two ends of the connector (2), one side of two ends of the connecting port (2) is provided with a fixing component, the top and the bottom of the charging head (1) are provided with first sliding chutes (11), the inner parts of the two groups of first sliding chutes (11) are provided with sliding blocks (9) in a sliding manner, the top and the bottom of the two groups of sliding blocks (9) which are far away from each other are provided with sleeve blocks (14), a disc (8) is sleeved on one side of the outer side of the sleeve block (14), a handle (13) is hinged to the top of one side of the disc (8), one end of the handle (13) is provided with a second sliding chute (12), the outer side of the sleeve block (14) is sleeved with a sucking disc (7), bellows (6) are equipped with in the intermediate position department of sucking disc (7) one side, the top of sucking disc (7) one side is equipped with the gassing subassembly.
2. The charging head of an intelligent charging pile convenient to use according to claim 1, wherein: the fixing component comprises a telescopic block (3), a through groove (4), an adjusting rod (5), a push rod (10), a first spring (16), a hinge rod (17), a hinge plate (25) and a connecting block (26), the first springs (16) are positioned at one ends, far away from each other, of the telescopic grooves (15), the telescopic blocks (3) are arranged at one sides, far away from each other, of the two groups of first springs (16), the hinged plates (25) are arranged at one sides of the two groups of telescopic blocks (3), the connecting blocks (26) are arranged at one sides of the tops of the two groups of hinged plates (25), push rod (10) are located the top of charging head (1) opposite side, the both ends of push rod (10) one side are equipped with hinge bar (17), and are two sets of the opposite side of hinge bar (17) articulates there is regulation pole (5), and is two sets of adjust the one side that hinge bar (17) were kept away from at pole (5) top and be equipped with logical groove (4).
3. The charging head of an intelligent charging pile convenient to use according to claim 1, wherein: the deflation component comprises a one-way valve (18), a support rod (19), a second spring (20), a sleeve (21), an expansion rod (22), a pull rod (23), a choke plate (24) and a slide rod (27), wherein the one-way valve (18) is located at the top of one side of the sucker (7), the support rod (19) is arranged on one side of the inside of the one-way valve (18), the sleeve (21) is arranged at the middle position of one side of the support rod (19), the second spring (20) is arranged on one side of the inside of the sleeve (21), the expansion rod (22) is arranged on one side of the second spring (20), the choke plate (24) is arranged on one side of the expansion rod (22), the pull rod (23) is hinged to the middle position of one side of the choke plate (24), and the slide rod (27) is arranged on one side of the two ends of the pull rod (23).
4. The charging head of an intelligent charging pile convenient to use according to claim 3, wherein: the diameters of through holes on two sides inside the one-way valve (18) are different, and the one-way valve (18) is matched with the air baffle plate (24).
5. The charging head of an intelligent charging pile convenient to use according to claim 3, wherein: one side of the interior of the one-way valve (18) is provided with a groove, one side of the groove is provided with an annular rubber pad, and the air baffle plate (24) is matched with the annular rubber pad.
6. The charging head of an intelligent charging pile convenient to use according to claim 1, wherein: bellows (6) are wavy, bellows (6) are located the intermediate position department of sucking disc (7) one side, bellows (6) cover is in the head (1) outside that charges.
CN202121650580.0U 2021-07-20 2021-07-20 Convenient to use's intelligent charging stake head that charges Active CN215451865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121650580.0U CN215451865U (en) 2021-07-20 2021-07-20 Convenient to use's intelligent charging stake head that charges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121650580.0U CN215451865U (en) 2021-07-20 2021-07-20 Convenient to use's intelligent charging stake head that charges

Publications (1)

Publication Number Publication Date
CN215451865U true CN215451865U (en) 2022-01-07

Family

ID=79683136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121650580.0U Active CN215451865U (en) 2021-07-20 2021-07-20 Convenient to use's intelligent charging stake head that charges

Country Status (1)

Country Link
CN (1) CN215451865U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114523867A (en) * 2022-04-22 2022-05-24 徐州台铃车业有限公司 Efficient and stable charging equipment based on three-wheeled electric vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114523867A (en) * 2022-04-22 2022-05-24 徐州台铃车业有限公司 Efficient and stable charging equipment based on three-wheeled electric vehicle

Similar Documents

Publication Publication Date Title
CN215451865U (en) Convenient to use's intelligent charging stake head that charges
CN109594830A (en) A kind of roadside temporary parking position recloser and its application method
CN111660849A (en) New forms of energy electric motor car is with filling electric pile
CN108903170B (en) A kind of sunshade parasol
CN217455721U (en) New energy automobile fills electric pile with waterproof function
CN215801315U (en) Road surface cleaning device
CN208745786U (en) A kind of protection equipment of electric automobile charging pile
CN108773284A (en) A kind of special adjustable charging pile of new-energy automobile
CN219728404U (en) Wireless charging type shared electric vehicle parking device
CN211765012U (en) New forms of energy that protectiveness is good fill electric pile
CN114161963A (en) New forms of energy fill electric pile plug fixing device
CN111688513A (en) New energy automobile interface arrangement that charges
CN208247992U (en) A kind of console mode single flow charging pile
CN221176802U (en) Automobile charging port convenient to pull out and insert
CN215097065U (en) Protective device for automobile charging station
CN117207797B (en) New energy automobile waterproof charging device with self-outage protection
CN218906955U (en) Charging and discharging pile for new energy automobile
CN208127521U (en) A kind of charging station waterproof construction
CN220483103U (en) Rainproof type battery car charger
CN113320420B (en) Energy-concerving and environment-protective district charging station
CN218948954U (en) Universal electric vehicle charger
CN218892434U (en) Charging head for charging pile with stable connection
CN213660761U (en) Intelligent charging stake with automatically, pull out plug
CN221250700U (en) Novel new forms of energy vertical electric pile that fills
CN212861147U (en) Safe type fills electric pile

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant