CN114050458B - Conversion type plug - Google Patents
Conversion type plug Download PDFInfo
- Publication number
- CN114050458B CN114050458B CN202111189808.5A CN202111189808A CN114050458B CN 114050458 B CN114050458 B CN 114050458B CN 202111189808 A CN202111189808 A CN 202111189808A CN 114050458 B CN114050458 B CN 114050458B
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- China
- Prior art keywords
- transmission piece
- pin
- driven
- plug
- working state
- 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.)
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Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 134
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
-
- 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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a conversion type plug which comprises a shell, pins and a transmission machine. The pins are arranged on the shell and comprise a driving pin and two driven pins; the driving pin is in transmission connection with the driven pin through a transmission mechanism; the switching plug is provided with a first working state and a second working state; when the conversion type plug is in a first working state, the conversion type plug is a three-pin plug, and the two driven pins are obliquely arranged; when the conversion plug is in the second working state, the conversion plug is a two-pin plug, and the two driven pins are arranged in parallel. The conversion type plug can enable the plug to be used in different sockets, and the utilization rate and portability are improved.
Description
Technical Field
The invention relates to an electrical element, in particular to a conversion type plug.
Background
Plugs and sockets are the most commonly used electrical fittings, and plugs are supplied with power by the socket with which they are used. However, in actual use, the situation that the socket and the plug are not matched often occurs, for example, the plug is a two-pin plug, the socket is a three-hole socket, so that the electric appliance cannot be used, the plug and the socket cannot be fully utilized, and resource waste is caused.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a conversion type plug which can be freely converted between two pins and three pins, so that the plug can be used in both a two-hole socket and a three-hole socket.
The invention solves the problems by adopting the following technical scheme:
there is provided a conversion plug characterized by comprising:
A housing;
the pin is arranged on the shell and comprises a driving pin and two driven pins;
The driving pin is in transmission connection with the driven pin through the transmission mechanism;
The conversion type plug is provided with a first working state and a second working state; when the conversion type plug is in the first working state, the conversion type plug is a three-pin plug, and the two driven pins are obliquely arranged; when the conversion plug is in the second working state, the conversion plug is a two-pin plug, and the two driven pins are arranged in parallel.
The beneficial effects of the invention are as follows: the embodiment of the invention adopts a conversion type plug which comprises a shell, pins and a transmission mechanism. The pin is arranged on the shell and comprises a driving pin and two driven pins, and the driving pin is in transmission connection with the driven pins through the transmission mechanism. The conversion type plug is provided with a first working state and a second working state; when the conversion type plug is in the first working state, the conversion type plug is a three-pin plug, and the two driven pins are obliquely arranged; when the conversion plug is in the second working state, the conversion plug is a two-pin plug, and the two driven pins are arranged in parallel. Through the conversion between the first operating condition and the second operating condition, the plug is used between the two-hole socket and the three-hole socket, so that the plug can be used in different sockets, and the utilization rate of the plug is improved.
Further, the shell comprises a cover and a base, the cover and the base are combined to form a containing cavity, the transmission mechanism is arranged in the containing cavity, and the pins penetrate through the cover.
Further, the transmission mechanism comprises a first transmission piece, a second transmission piece, a third transmission piece and a fourth transmission piece, wherein the first transmission piece is connected with one driven pin, the second transmission piece is connected with the other driven pin, the fourth transmission piece is connected with the driving pin, and the first transmission piece, the second transmission piece and the fourth transmission piece are respectively connected with the third transmission piece in a transmission way.
Further, the first transmission piece and the second transmission piece are gears, the third transmission piece is located between the first transmission piece and the second transmission piece, a first tooth row and a second tooth row are respectively arranged on two sides of the third transmission piece, the first tooth row is in meshed connection with the first transmission piece, and the second tooth row is in meshed connection with the second transmission piece; the side of the third transmission piece, which is close to the fourth transmission piece, is provided with a third tooth row, the fourth transmission piece is provided with a fourth tooth row, and the third tooth row is meshed with the fourth tooth row.
Further, the active pin is provided with a rotating rod in a penetrating mode, and the rotating rod is connected with the shell.
Further, the shell is provided with a chute for the active pins to move, and the active pins are located in the chute.
Further, when the conversion plug is in the second working state, part of the active pins extend out of the sliding groove.
Further, the cover is provided with a through hole for the driven pin to rotate, and the driven pin is connected with a hole shielding sheet; the driven pin penetrates through the through hole, and the hole shielding sheet is movably connected to the through hole.
Further, the base is provided with a limiting groove for limiting the movable range of the third transmission piece, and the third transmission piece is arranged in the limiting groove.
Further, the transmission mechanism is connected with a motor.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is an exploded view of a conversion plug according to an embodiment of the present invention in a second operative state;
FIG. 2 is an exploded view of a conversion plug according to an embodiment of the present invention in a first operative state;
Fig. 3 is a schematic structural view of a conversion plug in a second working state according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a conversion plug in a first working state according to an embodiment of the present invention;
fig. 5 is an exploded view of a conversion plug according to an embodiment of the present invention.
Reference numerals:
Housing 101, lid 102, base 103, receiving cavity 104, pins 201, driving pins 202, driven pins 203, first driving member 301, second driving member 302, third driving member 303, fourth driving member 304, first row of teeth 401, second row of teeth 402, third row of teeth 403, fourth row of teeth 404, rotating lever 501, sliding slot 502, through hole 503, shutter 504, limiting slot 505, first side 601, second side 602, third side 603.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, 2 and 3, a first aspect of an embodiment of the present invention provides a conversion plug.
The conversion plug includes a housing 101, prongs 201, and a transmission mechanism.
Wherein the pin 201 is mounted on the housing 101, the pin 201 comprising a driving pin 202 and a driven pin 203; the driving pins 202 are connected with the driven pins 203 through a transmission mechanism. The conversion type plug is provided with a first working state and a second working state, and when the conversion type plug is in the first working state, the conversion type plug is a three-pin plug, and the two driven pins 203 are obliquely arranged; when the conversion plug is in the second working state, the conversion plug is a two-pin plug and the two driven pins 203 are arranged in parallel.
In this embodiment, the driving mechanism is connected to both the driving pins 202 and the driven pins 203, and by rotating the driving pins 202, the driven pins 203 are switched between the inclined setting and the parallel setting under the driving action of the driving mechanism. At present, three pins 201 of a part of three-pin plug are arranged in parallel, but common socket types are two-hole sockets with parallel driven pins 203 and three-hole sockets with inclined driven pins 203, so that a transmission mechanism is required to be connected with the driven pins 203 according to the market conditions, and the driven pins 203 are controlled to be switched into inclined arrangement according to the state. The transmission mechanism helps the plug to be used between different sockets without a converter, so that the use rate and portability of the plug are improved.
In other embodiments, the housing 101 preferably includes a cover 102 and a base 103, the cover 102 and the base 103 in combination forming a receiving cavity 104, the actuator being disposed in the receiving cavity 104, and the pins 201 extending through the cover 102. The housing cavity 104 formed by the combination of the cover 102 and the base 103 provides a location for the mounting of the drive mechanism.
Preferably, the transmission mechanism comprises a first transmission member 301, a second transmission member 302, a third transmission member 303 and a fourth transmission member 304, wherein the first transmission member 301 is connected with one driven pin 203, the second transmission member 302 is connected with the other driven pin 203, the fourth transmission member 304 is connected with the driving pin 202, and the first transmission member 301, the second transmission member 302 and the fourth transmission member 304 are respectively connected with the third transmission member 303 in a transmission manner. When the driving pin 202 moves, the fourth transmission member 304 connected with the driving pin 202 drives the third transmission member 303 to move, the third transmission member 303 is connected with the first transmission member 301 and the second transmission member 302 at the same time, and the movement of the third transmission member 303 drives the first transmission member 301 and the second transmission member 302 to rotate, so that the driven pin 203 connected with the first transmission member 301 and the second transmission member 302 respectively is driven to rotate, and when the driving pin 202 moves, the driven pin 203 connected with the transmission mechanism is driven to move through the transmission of the transmission mechanism, so that the first working state and the second working state can be converted mutually. The driving pin 202 and the driven pin 203 can mutually influence the movement of each other through the connection among the first transmission piece 301, the second transmission piece 302, the third transmission piece 303 and the fourth transmission piece 304, so that the conversion between two pins and three pins of the plug is realized. Similarly, by rotating the driven pin 203, the driving pin 202 is driven to realize the conversion between two pins and three pins under the driving action of the driving mechanism.
Preferably, the first transmission member 301 and the second transmission member 302 are gears, the third transmission member 303 is located between the first transmission member 301 and the second transmission member 302, two sides of the third transmission member 303 are respectively provided with a first tooth row 401 and a second tooth row 402, the first tooth row 401 is in meshed connection with the first transmission member 301, and the second tooth row 402 is in meshed connection with the second transmission member 302; a third gear row 403 is arranged on one side of the third transmission member 303 close to the fourth transmission member 304, the fourth transmission member 304 is provided with a fourth gear row 404, and the third gear row 403 is meshed with the fourth gear row 404. When the driving pin 202 moves, the driving pin 202 is connected to the fourth transmission member 304, the fourth transmission member 304 is provided with a fourth gear row 404, and the fourth gear row 404 is meshed with a third gear row 403 of the third transmission member 303, so that when the driving pin 202 moves, the third transmission member 303 is driven to move by the meshing of the fourth gear row 404 and the third gear row 403, and the first gear row 401 and the second gear row 402 are respectively arranged on two sides of the third transmission member 303, and the first transmission member 301 and the second transmission member 302 are both gears, and the first gear row 401 is meshed with the first transmission member 301, and the second gear row 402 is meshed with the second transmission member 302. When the third transmission member 303 moves, the driven pin 203 is driven to rotate by the engagement of the gear row and the gear, so as to complete the conversion between the first working state and the second working state of the conversion plug. The interaction force generated by the meshing of the gears and the gear rows is very large, and the gears and the gear rows are not easy to fall off, so that the plug is very flexible and firm in the plug conversion process.
Preferably, the active pins 202 are perforated with a rotating rod 501, the rotating rod 501 being connected to the housing 101. The rotating rod 501 passes through the active pin 202 and is connected with the inner cavity wall of the accommodating cavity 104, because the rotating rod 501 is fixed on the inner cavity wall, when the active pin 202 rotates, the active pin 202 rotates around the intersection with the rotating rod 501 as the axis. The rotating rod 501 is connected to the inner cavity wall of the accommodating cavity 104, so that the connection position of the driving pin 202 and the third transmission member 303 is fixed when the driving pin 202 rotates, and the situation that the transmission mechanism cannot move or deviates from the position due to sliding of the driving pin 202 is avoided.
Referring to fig. 3 and 4, the housing 101 is preferably provided with a chute 502 for movement of the active pins 202, the active pins 202 being located in the chute 502. The chute 502 is disposed on the first side 601 of the cover 102, the second side 602, and the third side 603 of the base 103, and the second side 602 surrounds the first side 601 and is connected to the first side 601. When the conversion plug is in the first operating state, the active pins 202 extend perpendicularly from the first side 601, and when the conversion plug is in the second operating state, the active pins 202 extend perpendicularly from the second side 602 and the third side 603. The second side 602 partially coincides with the third side 603, and the chute 502 enables the movable pin 202 to move according to different operating states. It should be noted that, in addition to this, the cover 102 may also have only the first side 601, and a protrusion located below the cover 102 is provided, and when the cover 102 is combined with the base 103, the protrusion is located in the accommodating cavity 104. The chute 502 is now disposed on the first side 601 of the cover 102 and the third side 603 of the base 103. It will be appreciated that, regardless of the shape and combination of the cover 102 and the base 103, the sliding slot 502 may be provided to allow the active pin 202 to rotate, thereby enabling the different operating states to be switched.
Preferably, when the conversion plug is in the second working state, a portion of the active pins 202 extends out of the sliding groove 502. When the second operating state needs to be converted into the first operating state, the user can convert the operating state of the conversion type plug through the active pin 202 of the control part extending out of the chute 502. Compared with other conversion plugs in which the active pins 202 are placed in the housing 101, when the plug is in the second working state, part of the active pins 202 extend out of the sliding groove 502, so that the conversion of the plug is more convenient to control.
Preferably, the cover 102 is provided with a through hole 503 for the driven pin 203 to rotate, and the driven pin 203 is connected with a hole shielding sheet 504; the driven pins 203 are inserted into the through holes 503, and the hole shielding plate 504 is movably connected to the through holes 503. The driven pin 203 stretches out the lid 102 from the through-hole 503, because the driven pin 203 cross section is square, the through-hole 503 is in order to make things convenient for the rotation of driven pin 203, the size that sets up is bigger than driven pin 203 cross section, lead to outside dust to get into the holding chamber 104 through the clearance easily like this inside, lead to holding chamber 104 inside drive mechanism to break down, consequently, driven pin 203 is connected with the hole covering piece 504, hole covering piece 504 size is unanimous with through-hole 503, swing joint is in through-hole 503, when lid 102 and base 103 combine, hole covering piece 504 is connected with through-hole 503, can shelter from outside dust to get into holding chamber 104.
Referring to fig. 5, preferably, the base 103 is provided with a limiting groove 505 for limiting the movable range of the third transmission member 303, and the third transmission member 303 is disposed in the limiting groove 505. When the first operating state and the second operating state are switched to each other, the driven pin 203 needs to be switched between the inclined arrangement and the parallel arrangement, such switching needs to rely on the rotation of the first transmission member 301 and the second transmission member 302 connected to the driven pin 203, and the rotation of the first transmission member 301 and the second transmission member 302 depends on the sliding of the third transmission member 303 engaged with them, so that the range of movement of the third transmission member 303 needs to be very fine, so that the rotation angle of the driven pin 203 can conform to the position of the hole on the socket in the knowledge. Placing the third transmission member 303 in the limit groove 505, and when the third transmission member 303 moves to the edge of the limit groove 505 near the position of the driven pin 203, the driven pins 203 are arranged in parallel; when the third transmission member 303 moves to the edge of the limit groove 505 at the opposite side of the follower pin 203, the follower pin 203 is inclined.
Preferably, the transmission mechanism is connected with a motor. When the transmission mechanism is connected with a motor, the transmission mechanism can be controlled by the motor, so that the conversion between the first working state and the second working state of the conversion type plug is realized, and the conversion is more convenient and safer compared with the conversion of the manual control pin 201.
The present invention is not limited to the above embodiments, but is merely preferred embodiments of the present invention, and the present invention should be construed as being limited to the above embodiments as long as the technical effects of the present invention are achieved by the same means.
Claims (1)
1. A conversion plug, comprising:
the shell comprises a cover and a base, and the cover and the base are combined to form a containing cavity;
The pin is arranged on the shell, penetrates through the cover, comprises a driving pin and two driven pins, is provided with through holes for the driven pins to rotate, and is connected with a hole shielding sheet; the driven pin penetrates through the through hole, and the hole shielding sheet is movably connected in the through hole;
The driving pin is in driving connection with the driven pin through the driving mechanism, the shell is provided with a sliding groove for the driving pin to move, the driving pin is positioned in the sliding groove, the conversion type plug is provided with a first working state and a second working state, when the conversion type plug is in the second working state, the inserting end part of the driving pin extends out of the sliding groove, so that the working state of the conversion type plug is converted by controlling the driving pin extending out of the sliding groove; the transmission mechanism comprises a first transmission piece, a second transmission piece, a third transmission piece and a fourth transmission piece, wherein the first transmission piece is connected with one driven pin, the second transmission piece is connected with the other driven pin, the fourth transmission piece is connected with the driving pin, and the first transmission piece, the second transmission piece and the fourth transmission piece are respectively connected with the third transmission piece in a transmission way; the first transmission piece and the second transmission piece are gears, the third transmission piece is positioned between the first transmission piece and the second transmission piece, a first tooth row and a second tooth row are respectively arranged on two sides of the third transmission piece, the first tooth row is in meshed connection with the first transmission piece, and the second tooth row is in meshed connection with the second transmission piece; the base is provided with a limiting groove used for limiting the movable range of the third transmission piece, the third transmission piece is arranged in the limiting groove, when the third transmission piece moves to the edge of the limiting groove close to the driven pin, the driven pins are arranged in parallel, and when the third transmission piece moves to the edge of the limiting groove at the opposite side of the driven pin, the driven pin is obliquely arranged;
When the conversion type plug is in the first working state, the conversion type plug is a three-pin plug, and the two driven pins are obliquely arranged; when the conversion type plug is in the second working state, the conversion type plug is a two-pin plug, and the two driven pins are arranged in parallel;
the driving pins penetrate through the inner cavity wall of the accommodating cavity, and the rotating rods are fixed on the inner cavity wall;
The transmission mechanism is connected with a motor, and the transmission mechanism is controlled by the motor, so that the conversion between the first working state and the second working state of the conversion type plug is realized; the sliding groove is arranged on the first side surface, the second side surface and the third side surface of the base of the cover, and the second side surface surrounds the first side surface and is connected with the first side surface; when the conversion type plug is in a first working state, the active pins vertically extend out of the first side surface, and when the conversion type plug is in a second working state, the active pins vertically extend out of the second side surface and the third side surface; the second side surface is partially overlapped with the third side surface, and the first tooth row and the second tooth row are partially arranged in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189808.5A CN114050458B (en) | 2021-10-12 | 2021-10-12 | Conversion type plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189808.5A CN114050458B (en) | 2021-10-12 | 2021-10-12 | Conversion type plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114050458A CN114050458A (en) | 2022-02-15 |
| CN114050458B true CN114050458B (en) | 2024-05-28 |
Family
ID=80205339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111189808.5A Active CN114050458B (en) | 2021-10-12 | 2021-10-12 | Conversion type plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114050458B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521342A (en) * | 2009-03-26 | 2009-09-02 | 马飞成 | Convenient transfer plug |
| CN203826731U (en) * | 2014-05-16 | 2014-09-10 | 中国矿业大学 | Pin conversion type plug |
| CN205104720U (en) * | 2015-10-22 | 2016-03-23 | 郑州大学 | Two feet - tripod changeover plug |
| CA2961248A1 (en) * | 2017-03-17 | 2017-06-22 | Cable Gear Holdings Llc | Electrical plug and adapter with retractable prongs |
| CN108039625A (en) * | 2017-12-04 | 2018-05-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of Wiring harness connector of translation plates limitation |
| CN109193282A (en) * | 2018-07-24 | 2019-01-11 | 哈尔滨工程大学 | A kind of two pole and the changeable power source of mobile communication terminal adapter of three pole pins |
| CN109193254A (en) * | 2018-10-15 | 2019-01-11 | 广东小天才科技有限公司 | A kind of multipurpose plug |
| CN109217048A (en) * | 2018-08-18 | 2019-01-15 | 魏敏 | A kind of new type of plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6676428B2 (en) * | 2001-02-28 | 2004-01-13 | Burton Technologies, Llc | Securing device for electrical connectors |
-
2021
- 2021-10-12 CN CN202111189808.5A patent/CN114050458B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521342A (en) * | 2009-03-26 | 2009-09-02 | 马飞成 | Convenient transfer plug |
| CN203826731U (en) * | 2014-05-16 | 2014-09-10 | 中国矿业大学 | Pin conversion type plug |
| CN205104720U (en) * | 2015-10-22 | 2016-03-23 | 郑州大学 | Two feet - tripod changeover plug |
| CA2961248A1 (en) * | 2017-03-17 | 2017-06-22 | Cable Gear Holdings Llc | Electrical plug and adapter with retractable prongs |
| CN108039625A (en) * | 2017-12-04 | 2018-05-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of Wiring harness connector of translation plates limitation |
| CN109193282A (en) * | 2018-07-24 | 2019-01-11 | 哈尔滨工程大学 | A kind of two pole and the changeable power source of mobile communication terminal adapter of three pole pins |
| CN109217048A (en) * | 2018-08-18 | 2019-01-15 | 魏敏 | A kind of new type of plug |
| CN109193254A (en) * | 2018-10-15 | 2019-01-11 | 广东小天才科技有限公司 | A kind of multipurpose plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114050458A (en) | 2022-02-15 |
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