CN104682086A - Automatic separating type waterproof connector - Google Patents
Automatic separating type waterproof connector Download PDFInfo
- Publication number
- CN104682086A CN104682086A CN201310639671.8A CN201310639671A CN104682086A CN 104682086 A CN104682086 A CN 104682086A CN 201310639671 A CN201310639671 A CN 201310639671A CN 104682086 A CN104682086 A CN 104682086A
- Authority
- CN
- China
- Prior art keywords
- plug
- casing
- socket
- lock pin
- magnet ring
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/6205—Two-part coupling devices held in engagement by a magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6278—Snap or like fastening comprising a pin snapping into a recess
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The invention belongs to the field of underwater submersibles, and particularly relates to an automatic separating type waterproof connector, which comprises a waterproof insertion head and a waterproof insertion seat, wherein the waterproof insertion seat comprises an insertion seat shell and a magnet ring; one side of the waterproof insertion seat is arranged on a submersible body; the magnet ring is arranged on the external circumferential face of the insertion seat shell; the waterproof insertion head comprises an insertion head shell and an unlocking sleeve; one side of the insertion head shell is arranged on external equipment; the other side of the insertion head shell is in seal insertion with the insertion seat shell; the unlocking sleeve sleeves the insertion head shell; one end of the unlocking sleeve is connected with the magnet ring through magnetic force; the waterproof insertion head and the waterproof insertion seat are connected into a whole through the magnetic force between the magnet ring and the unlocking sleeve; the other end of the unlocking sleeve is connected with the external equipment through a rope; after the external equipment is separated from the submersible, the unlocking sleeve is separated from the magnet ring through the dead load of the external equipment, so that the separation of the waterproof insertion head and the waterproof insertion seat is realized. After the submersible is separated from the external equipment, the automatic separating type waterproof connector can be separated automatically, and is simple in structure, and convenient to install and separate.
Description
Technical field
The invention belongs to diving under water device field, specifically a kind of self-falling-off type underwater electrical connector.
Background technology
Along with formulation and the enforcement of national marine Development Strategy, ocean scientific investigation and development of resources activity more and more frequent.In this course, underwater robot and various diving under water device, especially flood deep diving hydrophone, carry more and more important mission.
Submersible reconnoitre under water or operation time, usually all can carry some prospecting or operation instrument, equipment in submersible outside, as manipulator, sampling basket etc.Some large-scale unmanned or manned underwater vehicles, also as required, can carry outside adjoint small underwater robot as miniature ROV(remote underwater robot) etc.These plug-in underwater installations or small underwater robot are under the underwater environment of complexity, and the underwater obstacle generation scratchings such as existence and under water hermatolith, coral, fishing net damage even cares for submersible body, makes the danger that it cannot move and float.Now submersible is safety self-protective, often abandons the such as equipment such as manipulator, miniature ROV, makes it again possess free activity under water and upper i and return lash ship; For manned underwater vehicle, for ensureing that dive personal security returns, the important means that " disconnected arm is saved oneself " turns danger into safety especially.At present, plug-in underwater installation or small underwater robot etc. and the disengaging of submersible have had the technological means of comparative maturity, but submersible abandons these plug-in devices and after departing from submersible, between submersible and plug-in device, underwater electrical connector is still in connection status, therefore, after plug-in device and submersible depart from, underwater electrical connector also must with automatically disengaging the technical barrier becoming and must capture.
Existing conventional underwater electrical connector, its plug is normally threaded with the connection of socket.Namely the coupling nut (internal thread) on plug links together with the external screw thread of Socket casing front end, meets bonding strength and watertightness requirement.Therefore want plug is separated with socket, connecting thread pair to each other must be separated, this is unworkable in complicated underwater environment.
Summary of the invention
Departing from problem that is rear, underwater electrical connector disengaging difficulty between submersible and plug-in device to solve between submersible and plug-in device, the object of the present invention is to provide a kind of self-falling-off type underwater electrical connector.This self-falling-off type underwater electrical connector can automatically depart from submersible after plug-in device and submersible depart from.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes weather proof receptacle and watertight socket, wherein watertight socket comprises Socket casing, magnet ring, the side of this Socket casing is arranged on submersible body, and described magnet ring is arranged on the outer circumference surface of Socket casing, and the inside of described Socket casing is provided with vulcanization of rubber body and epoxy sealing body; Described weather proof receptacle comprises plug casing and separates lock tube, and the side of this plug casing is arranged on the plug-in device of submersible, and the opposite side of opposite side and described Socket casing seals grafting, and the inside and outside of described plug casing realizes sealing by vulcanization of rubber body; Described solution lock tube is set on plug casing, one end of this solution lock tube is connected with magnet ring by magnetic force, described watertight socket and weather proof receptacle are connected as one by magnet ring and the magnetic force separated between lock tube, and the other end of described solution lock tube is connected with described plug-in device by rope; After described plug-in device and submersible depart from, described solution lock tube is separated with magnet ring by the deadweight of plug-in device, and then realizes the separation of described weather proof receptacle and watertight socket.
Wherein: the outer circumference surface of described plug casing is evenly equipped with multiple lock pin, each lock pin all has annular groove vertically, is equipped with spring in this annular groove; Described plug casing outer circumference surface is evenly equipped with the groove identical with described lock pin quantity, and one end of described lock pin is plugged in this groove, and the other end abuts with described solution lock tube; The other end of described lock pin is spherical crown shape, the end face of described Socket casing side is along the circumferential direction evenly equipped with the dog screw identical with described lock pin quantity, described lock pin has bar-shaped trough vertically, and one end of described dog screw is stretched in this bar-shaped trough, to lock pin axial location; Described plug casing is provided with for spacing back-up ring; The other end of described solution lock tube has through hole, and this through hole is connected with described plug-in device by rope; The end face of described Socket casing side has seal groove, is provided with in sealing groove and the described end face sealing ring realizing sealing; The part of described Socket casing and plug casing grafting is sealed by radial seal ring.
Advantage of the present invention and good effect are:
1. structure of the present invention is simple, installation, convenient separation, after departing between submersible and plug-in device, can automatically depart from, the watertightness of the watertight socket after disengaging self and structural strength, can bear and be exposed to environment hydraulic pressure suffered in water, other function of safeguards system normally works and is without prejudice.
2. magnetic force and lock pin by separating lock tube and magnet ring between weather proof receptacle of the present invention and watertight socket connect as one, after solution lock tube is separated with magnet ring, lock pin departs from plug casing under the effect of spring force, reaches the object that submersible is thoroughly separated with plug-in device.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the left view of Fig. 1;
Wherein: 1 is vulcanization of rubber body and epoxy sealing body, and 2 is end face sealing ring, and 3 is Socket casing, 4 is dog screw, and 5 is lock pin, and 6 is spring, 7 for separating lock tube, and 8 is back-up ring, and 9 is plug casing, 10 is radial seal ring, 11 is magnet ring, and 12 is bar-shaped trough, and 13 is through hole, 14 is groove, and 15 is seal groove.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes weather proof receptacle and watertight socket, wherein watertight socket comprises Socket casing 3, magnet ring 11, dog screw 4, lock pin 5, spring 6, contacts idol and be positioned at vulcanization of rubber body and the epoxy sealing body 1 of Socket casing 3 inside, wherein Socket casing 3 side is arranged on submersible body (as electronic compartment), the end face of this side has seal groove 15, in seal groove 15, be provided with the end face sealing ring 2 realizing sealing.Magnet ring 11 is bonded on the outer circumference surface of Socket casing 3, and the inside of Socket casing 3 is provided with vulcanization of rubber body and epoxy sealing body 1.
Respectively there is a weather proof receptacle at watertight cable two ends, and the weather proof receptacle of watertight cable one end is connected with the watertight socket be arranged on submersible plug-in device, and the weather proof receptacle of the other end is connected with the watertight socket on submersible body (as electronic compartment).Weather proof receptacle comprises plug casing 9, separates lock tube 7, back-up ring 8 and inside and outside vulcanization of rubber body, and the side of plug casing 9 connects watertight cable, and the opposite side of opposite side and Socket casing 3 seals grafting; The inside and outside of Socket casing 9 realizes sealing by vulcanization of rubber body.Socket casing 3 is sealed by radial seal ring 10 with the part of plug casing 9 grafting.Separating lock tube 7 is set on plug casing 9, and one end of this solution lock tube 7 is connected with magnet ring 11 by magnetic force, and the other end separating lock tube 7 has through hole 13, and this through hole 13 is connected with plug-in device by flexible rope.Plug casing 9 is provided with for spacing back-up ring 8, solution lock tube 7 is still hung on plug casing 9 after the decoupling.
The outer circumference surface of Socket casing 3 is evenly equipped with multiple lock pin 5, and each lock pin 5 all has annular groove vertically, is equipped with spring 6 in this annular groove, and one end of spring 6 is connected on Socket casing 3, and the other end is connected on lock pin 5.Plug casing 9 outer circumference surface is evenly equipped with the groove 14 identical with lock pin 5 quantity, one end of each lock pin 5 is all plugged in a groove 14, the other end of each lock pin 5 is processed into spherical crown shape, abuts with solution lock tube 7, the frictional force reducing lock pin 5 and separate between lock tube 7.The end face of Socket casing 3 side is along the circumferential direction evenly equipped with the dog screw 4 identical with lock pin 5 quantity, each lock pin 5 all has bar-shaped trough 12 vertically, one end of each dog screw 4 is all stretched in the bar-shaped trough 12 on a lock pin 5, to lock pin 5 axial location.The lock pin 5 of the present embodiment, dog screw 4 and groove 14 are three.Weather proof receptacle and watertight socket are integrated by the socket connection of magnet ring 11 and the magnetic force separated between lock tube 7 and lock pin 5 and groove 14.
Operation principle of the present invention is:
During use, weather proof receptacle of the present invention is arranged on the submersible plug-in device that may abandon, and watertight socket is arranged on (as electronic compartment) on submersible body.Abandon after action occurs at weather proof receptacle and watertight socket, separate lock tube 7 and under Gravitative Loads, overcome the magnetic force of magnet ring 11 by flexible rope, be separated with magnet ring 11 in the plug-in device water abandoned; In the process of separating lock tube 7 separation, separate lock tube 7 no longer to abut with lock pin 5 other end, lock pin 5 radially moves under the effect of spring 6 spring, thus spun off by the groove 14 on plug casing 9, weather proof receptacle is separated completely with watertight socket, reaches the object that submersible is thoroughly separated with plug-in device.After weather proof receptacle of the present invention is separated with watertight socket, the watertightness of watertight socket self and structural strength, can bear and be exposed to environment hydraulic pressure suffered in water, other function of safeguards system normally works and is without prejudice.
Claims (6)
1. a self-falling-off type underwater electrical connector, it is characterized in that: comprise weather proof receptacle and watertight socket, wherein watertight socket comprises Socket casing (3), magnet ring (11), the side of this Socket casing (3) is arranged on submersible body, described magnet ring (11) is arranged on the outer circumference surface of Socket casing (3), and the inside of described Socket casing (3) is provided with vulcanization of rubber body and epoxy sealing body (1); Described weather proof receptacle comprises plug casing (9) and separates lock tube (7), the side of this plug casing (9) is arranged on the plug-in device of submersible, the opposite side of opposite side and described Socket casing (3) seals grafting, and the inside and outside of described plug casing (9) realizes sealing by vulcanization of rubber body; Described solution lock tube (7) is set on plug casing (9), one end of this solution lock tube (7) is connected with magnet ring (11) by magnetic force, described watertight socket and weather proof receptacle are connected as one by magnet ring (11) and the magnetic force separated between lock tube (7), and the other end of described solution lock tube (7) is connected with described plug-in device by rope; After described plug-in device and submersible depart from, described solution lock tube (7) is separated with magnet ring (11) by the deadweight of plug-in device, and then realizes the separation of described weather proof receptacle and watertight socket.
2., by self-falling-off type underwater electrical connector according to claim 1, it is characterized in that: the outer circumference surface of described plug casing (3) is evenly equipped with multiple lock pin (5), each lock pin (5) all has annular groove vertically, is equipped with spring (6) in this annular groove; Described plug casing (9) outer circumference surface is evenly equipped with the groove (14) identical with described lock pin (5) quantity, one end of described lock pin (5) is plugged in this groove (14), and the other end abuts with described solution lock tube (7).
3. by self-falling-off type underwater electrical connector according to claim 2, it is characterized in that: the other end of described lock pin (5) is spherical crown shape, the end face of described Socket casing (3) side is along the circumferential direction evenly equipped with the dog screw (4) identical with described lock pin (5) quantity, described lock pin (5) has vertically bar-shaped trough (12), one end of described dog screw (4) is stretched in this bar-shaped trough (12), to lock pin (5) axial location.
4., by the self-falling-off type underwater electrical connector described in claim 1,2 or 3, it is characterized in that: described plug casing (9) is provided with for spacing back-up ring (8).
5., by the self-falling-off type underwater electrical connector described in claim 1,2 or 3, it is characterized in that: the other end of described solution lock tube (7) has through hole (13), and this through hole (13) is connected with described plug-in device by rope.
6., by the self-falling-off type underwater electrical connector described in claim 1,2 or 3, it is characterized in that: the end face of described Socket casing (3) side has seal groove (15), be provided with in sealing groove (15) and the described end face sealing ring (2) realizing sealing; Described Socket casing (3) is sealed by radial seal ring (10) with the part of plug casing (9) grafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639671.8A CN104682086B (en) | 2013-11-30 | 2013-11-30 | Automatic separating type waterproof connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639671.8A CN104682086B (en) | 2013-11-30 | 2013-11-30 | Automatic separating type waterproof connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104682086A true CN104682086A (en) | 2015-06-03 |
| CN104682086B CN104682086B (en) | 2017-01-18 |
Family
ID=53316838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310639671.8A Active CN104682086B (en) | 2013-11-30 | 2013-11-30 | Automatic separating type waterproof connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104682086B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035946A (en) * | 2017-11-27 | 2018-05-15 | 山西大学 | A kind of submarine mechanical formula low noise separator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048914A (en) * | 1987-12-18 | 1991-09-17 | Nl Petroleum Services (U.K.) Limited | Electrical connectors incorporating automatic power control |
| CN2385445Y (en) * | 1999-08-17 | 2000-06-28 | 杭州电连接器厂 | Electric connector |
| CN101051716A (en) * | 2007-05-23 | 2007-10-10 | 杭州航天电子技术有限公司 | Under water separate electric connector |
| CN201570684U (en) * | 2009-12-28 | 2010-09-01 | 中国科学院沈阳自动化研究所 | Watertight connector |
| CN202495625U (en) * | 2012-03-13 | 2012-10-17 | 中国电子科技集团公司第八研究所 | Photoelectric composite plugging-in structure of watertight connector |
| JP2012234627A (en) * | 2011-04-28 | 2012-11-29 | Daiwa Denki Kk | Small magnet type connector |
| CN203589340U (en) * | 2013-11-30 | 2014-05-07 | 中国科学院沈阳自动化研究所 | Self-releasing watertight connector |
-
2013
- 2013-11-30 CN CN201310639671.8A patent/CN104682086B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048914A (en) * | 1987-12-18 | 1991-09-17 | Nl Petroleum Services (U.K.) Limited | Electrical connectors incorporating automatic power control |
| CN2385445Y (en) * | 1999-08-17 | 2000-06-28 | 杭州电连接器厂 | Electric connector |
| CN101051716A (en) * | 2007-05-23 | 2007-10-10 | 杭州航天电子技术有限公司 | Under water separate electric connector |
| CN201570684U (en) * | 2009-12-28 | 2010-09-01 | 中国科学院沈阳自动化研究所 | Watertight connector |
| JP2012234627A (en) * | 2011-04-28 | 2012-11-29 | Daiwa Denki Kk | Small magnet type connector |
| CN202495625U (en) * | 2012-03-13 | 2012-10-17 | 中国电子科技集团公司第八研究所 | Photoelectric composite plugging-in structure of watertight connector |
| CN203589340U (en) * | 2013-11-30 | 2014-05-07 | 中国科学院沈阳自动化研究所 | Self-releasing watertight connector |
Non-Patent Citations (2)
| Title |
|---|
| 汪步云，等: "磁密封在深水作业灵巧手上的应用", 《机械设计与研究》 * |
| 邓明，等: "海底电磁探测仪器的承压密封舱", 《现代地质》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035946A (en) * | 2017-11-27 | 2018-05-15 | 山西大学 | A kind of submarine mechanical formula low noise separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104682086B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112600029B (en) | Underwater wet-pull-plug pressure balance electric connector | |
| US20110177697A1 (en) | Harsh environment rotary joint electrical connector | |
| CN102522658A (en) | Electrical-connecting device for underwater automatic machine | |
| CN110649423B (en) | Three-section type underwater cable passing mechanism for underground electric submersible pump | |
| CN102030081B (en) | Data transmission buoy released in deep ocean | |
| CN207588093U (en) | A kind of electrical general connector of underwater wet-type of pressure self-balancing | |
| CN108646365A (en) | A kind of sea floor optoelectronic composite cable deep-sea terminal separation device | |
| CN203589340U (en) | Self-releasing watertight connector | |
| CN109301563A (en) | A kind of watertight connector | |
| CN206195097U (en) | Optoelectrical composite is plug connector under water | |
| CN103978497A (en) | Hydraulic driving type underwater emergency release device | |
| CN202142708U (en) | Ethernet line electric connector | |
| CN203481498U (en) | Eight-core bearing watertight electric connector | |
| CN104682086B (en) | Automatic separating type waterproof connector | |
| CN204680822U (en) | A kind of underwater anti-short circuit separate electric connector | |
| CN208522164U (en) | Underwater wet plug converting means | |
| CN207611927U (en) | A kind of wet plug sealing structure of electrical general connector | |
| CN104934727B (en) | Watertight connector of low separating force | |
| CN109243756B (en) | Sucker type electromagnet sealing magnetic conduction structure | |
| CN105334408B (en) | A kind of device of autonomous detection deep-sea watertight performance of connector | |
| CN106394834B (en) | Submersible cable disengaging gear | |
| CN210074295U (en) | Watertight cabin threading structure | |
| CN204008924U (en) | The autonomous device that detects deep-sea watertight performance of connector | |
| CN203787667U (en) | Connector for sealed cabin penetrating cable of underwater propeller | |
| EP3577724B1 (en) | Magnetic latch arrangement for a subsea interconnection system and interconnection method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |