CN113948906B - Heavy-current watertight connector and plug - Google Patents
Heavy-current watertight connector and plug Download PDFInfo
- Publication number
- CN113948906B CN113948906B CN202111145992.3A CN202111145992A CN113948906B CN 113948906 B CN113948906 B CN 113948906B CN 202111145992 A CN202111145992 A CN 202111145992A CN 113948906 B CN113948906 B CN 113948906B
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- CN
- China
- Prior art keywords
- plug
- socket
- shell
- periphery
- insulator
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- 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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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
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
-
- 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
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
- H01R13/5205—Sealing means between cable and housing, e.g. grommet
-
- 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
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to a high-current watertight connector and a plug, wherein the connector comprises a plug and a socket, the front ends of the plug and the socket are inserted in opposite directions, the socket comprises a socket shell, a socket insulator and a contact pin contact piece, the plug comprises a plug shell, a wire spring hole, a plug vulcanizing body and a watertight cable, which are integrally vulcanized and formed, and an annular groove for the interference insertion of the front end of the socket shell is formed in the periphery of the part of the plug vulcanizing body, which extends out of the plug shell; the part of the plug vulcanizing body inserted into the socket shell is in interference sealing with the inner peripheral surface of the socket shell through a plurality of first annular convex ribs on the outer peripheral surface of the plug vulcanizing body; the inner periphery of the front end of the plug vulcanizing body is also provided with an inward turning edge which is in fit contact with the outer periphery of the front end of the socket insulator, and the inner periphery of the inward turning edge is provided with at least one second annular convex rib which is in interference seal with the socket insulator. The high-current watertight connector has the advantages of simple structure and low cost, has the underwater sealing function, and can cover the whole sea depth by the working water depth.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a high-current watertight connector.
Background
The high-current connector is used as a common special connector and has various structures according to different application scenes, but the high-current connector applicable to the underwater environment is not common, and the connector has high requirements on the transmission of electric performance and the sealing performance of the connector. Most of the existing high-current connectors cannot meet the requirements of electrical performance and tightness in an underwater environment.
Disclosure of Invention
In order to solve the problems, the invention provides the high-current watertight connector with the novel structure, which meets the transmission requirement of high current by adopting the wire spring hole contact piece, and simultaneously meets the radial and axial sealing of the inside of the connector and the inserting and combining surface by the vulcanization sealing structure, thereby realizing the high-current transmission in the underwater environment.
The aim and the technical problems of the invention are realized by adopting the following technical proposal. The invention provides a high-current watertight connector, which comprises a plug and a socket, wherein the front ends of the plug and the socket are inserted into each other, the socket comprises a socket shell, a socket insulator and a contact pin contact piece, the plug comprises a plug shell, a wire spring hole, a plug vulcanizing body and a watertight cable, the plug shell is integrally vulcanized and formed, and an annular groove for the interference insertion of the front end of the socket shell is formed in the periphery of the part of the plug vulcanizing body extending out of the plug shell; the part of the plug vulcanizing body inserted into the socket shell is in interference sealing with the inner peripheral surface of the socket shell through a plurality of first annular convex ribs on the outer peripheral surface of the plug vulcanizing body; the inner periphery of the front end of the plug vulcanizing body is also provided with an inward turning edge which is in fit contact with the outer periphery of the front end of the socket insulator, and the inner periphery of the inward turning edge is provided with at least one second annular convex rib which is in interference seal with the socket insulator.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
The annular groove is formed by an annular bulge at the periphery of the plug vulcanizing body, a cantilever extending along the axial direction on the front end surface of the annular bulge and the periphery of the plug vulcanizing body.
The high-current watertight connector further comprises a connecting nut which is assembled on the plug shell in a sliding mode, a spring which is used for providing axial backward force for the connecting nut is further arranged between the connecting nut and the plug shell, the clamping spring which is located in the clamping groove of the plug shell realizes circumferential backward limit of the connecting nut, and the front end of the connecting nut is further provided with a clamping nail which is locked with the three curved grooves on the socket shell in an adaptive mode.
In the high-current watertight connector, the socket insulator is formed on the periphery of the contact pin contact piece in an injection mode, and the socket insulator is sealed with the socket shell through the radial sealing ring.
In the high-current watertight connector, the periphery of the contact pin contact piece is provided with the step structure.
In the heavy-current watertight connector, the socket insulator and the socket shell are fixed through tail glue filling.
In the high-current watertight connector, an annular groove is formed between the part of the tail of the pin contact piece, which extends out of the socket insulator, and the socket shell, and epoxy glue is filled in the annular groove from the tail of the socket shell to fix the socket insulator and the socket shell.
In the heavy-current watertight connector, the periphery of the tail part of the contact pin contact element is provided with a plurality of ring grooves for enhancing the grouting bonding force, and the socket shell is also internally provided with a plurality of ring grooves for enhancing the grouting bonding force.
In the heavy-current watertight connector, the front end of the socket insulator is provided with the annular end face which is matched and attached with the front end of the plug vulcanizing body, the inner ring of the annular end face extends forwards to form a sealing ring which is matched with the inner turning edge of the plug vulcanizing body, and the front end of the sealing ring is provided with the guiding chamfer.
The aim and the technical problems of the invention are realized by adopting the following technical proposal. According to the invention, the high-current watertight connector plug is the plug.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the invention can achieve quite technical progress and practicability, has wide industrial application value, and has at least the following advantages:
the connector consists of a plug and a socket, wherein a wire spring hole is adopted for transmitting a jack contact of the high-current connector, and the plug and the socket have independent sealing capability and can realize the sealing of a contact part after being plugged.
The main body part of the connector plug mainly comprises a contact piece, a watertight cable and a plug shell, wherein rubber is integrally vulcanized and formed; the convex ribs on the plug vulcanizing body are matched with the socket shell of the socket and the relevant parts of the socket insulator part to realize the sealing after the connector is plugged.
The high-current watertight connector has the advantages of simple structure and low cost, has the underwater sealing function, and can cover the whole sea depth by the working water depth.
Drawings
FIG. 1 is a schematic view of a heavy current watertight connector according to the present invention;
FIG. 2 is a schematic diagram of a plug structure of the heavy current watertight connector according to the present invention;
FIG. 3 is a schematic view of a plug housing of the heavy current watertight connector of the present invention;
FIG. 4 is an enlarged view of a portion of the front end of the plug of the heavy current watertight connector of the present invention;
FIG. 5 is a schematic diagram of a receptacle structure of the heavy current watertight connector of the present invention;
FIG. 6 is a schematic view of the pin contact of the heavy current watertight connector of the present invention;
fig. 7 is a cross-sectional view of the plugging portion of the high-current watertight connector according to the present invention.
[ Main element symbols description ]
1: plug
2: socket
3: plug shell
4: plug vulcanizing body
5: wire spring hole
6: connecting screw cap
7: socket shell
8: socket insulator
9: pin contact
10: glue filling position
11: cantilever arm
12: first annular convex rib
13: second annular convex rib
14: radial sealing ring
15: axial sealing ring
16: annular groove
17: staple bolt
18: three curved grooves
19: spring
20: watertight cable
21: annular protrusion
22: inward edge
23: sealing ring
24: clamping groove
25: clamp spring
Detailed Description
In order to further describe the technical means and effects adopted by the present invention to achieve the preset purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects of the high-current watertight connector according to the present invention with reference to the accompanying drawings and the preferred embodiments.
Referring to fig. 1-7, which are schematic structural diagrams of various parts of the heavy-current watertight connector of the present invention, the connector includes a front-end opposite plug 1 and a socket 2, the plug 1 and the socket 2 have independent sealing capability, and sealing of contact parts can be achieved after plugging. The connector socket 2 is also provided with independent longitudinal bearing capacity.
The socket 2 comprises a socket shell 7, a socket insulator 8 positioned in the socket shell 7 and a contact pin contact 9 positioned in the socket insulator 8, and in order to realize bearing and sealing of the socket, the socket insulator component 8 is formed by injection molding of epoxy molding compound with good bearing performance on the periphery of the contact pin contact 9, and forms an integrated structure with the contact pin contact 9. And the socket insulator 8 realizes the sealing with the socket shell through the radial sealing ring 14, preferably, the radial sealing ring 14 is an O-shaped ring, and the periphery of the socket insulator 8 is provided with a ring groove for realizing the axial limiting of the radial sealing ring 14.
To enhance the bearing performance of the socket insulator 8, the outer circumference of the pin contact 9 is provided with a stepped structure. The outer periphery of the rear end of the socket insulator 8 is a stepped shaft structure which is matched with the inner periphery of the socket shell 7 in a stepped stop mode to realize that the size of the axial backward limit is reduced step by step, preferably, the stepped shaft structure has three layers, and the surface between the last two layers is an inclined surface, but the stepped shaft structure is not limited to the inclined surface.
The socket shell 7 and the socket insulator 8 are fixed by encapsulating epoxy glue at the tail part, in particular, an annular groove is formed between the part, extending out of the socket insulator 8, of the tail part of the contact pin contact piece 9 and the socket shell 7, and the epoxy glue is encapsulated in the annular groove from the tail part of the socket shell 7 until the space surrounded by the inner wall of the socket shell 7, the outer wall of the contact pin contact piece 9 and the tail part of the socket insulator 8 is filled with the epoxy glue, so that the fixation among the three parts is realized. Preferably, in order to increase the binding force between the encapsulated insulator component and the socket shell, a plurality of annular grooves 16 distributed along the axial direction are arranged on the periphery of the tail of the pin contact 9. The socket housing 7 is also provided with a plurality of annular grooves distributed in the axial direction, but is not limited thereto.
The periphery of the socket shell 7 is also provided with a tri-curved groove 18 which is used for being matched with a clamping nail 17 on the plug connection nut 6 to realize the locking of the connector. The socket housing 7 is further provided with an axial sealing ring 15 for sealing with a user installation panel, and the axial sealing ring 15 is an O-ring.
The plug 1 comprises a plug shell 3, a plug vulcanizing body 4, a wire spring hole 5, a watertight cable 20 and a connecting nut 6, wherein rubber integrated vulcanization molding is adopted among the plug shell 3, the wire spring hole 5 and the watertight cable, and the plug vulcanizing body 4 is formed by the vulcanization process.
The rear end of the plug vulcanizing body 4 is positioned between the plug housing 3 and the wire spring hole 5, the front end extends out of the plug housing 3, the periphery of the front end of the plug vulcanizing body 4 is also provided with an annular bulge 21, the front end surface of the bulge is provided with a cantilever 11 extending along the axial direction, the cantilever 11 is positioned at the outer side of the front end surface of the annular bulge 21, and the cantilever 11, the front end surface of the annular bulge and the periphery of the plug vulcanizing body 4 jointly enclose an annular groove for the front end of the socket housing 7 to be inserted into for realizing sealing. The cantilever 11 has elastic deformation capability, so that the front end of the socket shell 7 is matched with the annular groove in an extrusion mode, and sealing is achieved. When the connector is inserted, external liquid can give radial extrusion force to the outer peripheral surface of the cantilever, so that the cantilever 11 can be in closer contact with the socket shell, the sealing at the position is more reliable, namely, the annular groove can not only realize axial sealing of the plug and the socket at the insertion surface, but also enhance the sealing effect in an underwater environment through water pressure.
The part of the plug vulcanizing body, which is inserted into the socket shell 7, is provided with a plurality of first annular ribs 12 distributed along the axial direction on the outer peripheral surface, and the first annular ribs 12 are in interference fit with the inner peripheral surface of the socket shell 7, so that radial sealing at the contact surface between the plug and the socket is realized.
The inner circumference of the front end of the plug vulcanizing body 4 extends inwards to form an inward turning edge 22 which is in fit contact with the outer circumferential surface of the front end of the socket insulator 8, and at least one second annular convex rib 13 which is in interference seal with the socket insulator is arranged on the inner circumferential surface of the inward turning edge 22. In the embodiment of the invention, the front end of the socket insulator 8 is provided with an annular vertical surface which is matched and fitted with the front end of the plug vulcanized body, and the inner ring of the annular vertical surface extends forwards along the axial direction to form a sealing ring 23 which is matched with the turned-in edge on the plug vulcanized body 4. Preferably, the front end of the sealing ring is a chamfer with guiding function. The outer side of the front end of the plug vulcanizing body is also provided with a chamfer so as to facilitate guiding when the connector is inserted.
The connecting nut 6 is slidably assembled on the plug housing 3, a spring 19 is arranged between the connecting nut 6 and the plug housing 3, the spring 19 provides axial backward power for the connecting nut, and a clamping groove at the periphery of the tail of the plug housing 3 is internally provided with a clamping spring 25 for limiting the axial backward of the connecting nut. The coupling nut 6 is provided with a staple for locking the connector. After the plug is inserted with the socket, the spring can apply a reverse acting force to the connecting nut, the acting force can be transmitted to the clamping nail on the connecting nut, and the clamping nail is matched with the three curved grooves on the socket, so that the locking and the anti-loose of the connector are finally realized.
The rear end face of the annular bulge 21 on the periphery of the plug vulcanizing body 4 is blocked and limited with the rear end face of the plug housing 3.
In order to increase the bonding strength between the plug vulcanizing body 4 and the wire spring hole 5, at least one protrusion and at least one groove are further arranged on the periphery of the wire spring hole rear sleeve.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a heavy current watertight connector, its includes front end to plug and socket of inserting, and the socket includes socket casing, socket insulator and contact pin contact, its characterized in that: the plug comprises a plug shell, a wire spring hole, a plug vulcanizing body and a watertight cable, wherein the plug shell is integrally vulcanized and formed, and an annular groove for interference insertion of the front end of the socket shell is formed in the periphery of the plug vulcanizing body extending out of the plug shell; the part of the plug vulcanizing body inserted into the socket shell is in interference sealing with the inner peripheral surface of the socket shell through a plurality of first annular convex ribs on the outer peripheral surface of the plug vulcanizing body; the inner periphery of the front end of the plug vulcanizing body is also provided with an inward turning edge which is in fit contact with the outer periphery of the front end of the socket insulator, and the inner periphery of the inward turning edge is provided with at least one second annular convex rib which is in interference seal with the socket insulator;
the annular groove consists of an annular bulge at the periphery of the plug vulcanizing body, a cantilever extending along the axial direction on the front end surface of the annular bulge and the periphery of the plug vulcanizing body; when the connector is inserted, the external liquid can give a radial extrusion force to the outer peripheral surface of the cantilever, so that the cantilever can be in closer contact with the socket shell.
2. The high current watertight connector of claim 1 wherein: the plug also comprises a connecting nut which is assembled on the plug shell in a sliding way, a spring which is used for providing axial backward force for the connecting nut is further arranged between the connecting nut and the plug shell, the clamping spring which is positioned in the clamping groove of the plug shell realizes the circumferential backward limit of the connecting nut, and the front end of the connecting nut is further provided with a clamping nail which is matched and locked with the three curved grooves on the socket shell.
3. The high current watertight connector of claim 1 wherein: the socket insulator is formed on the periphery of the contact pin contact piece in an injection mode, and the socket insulator is sealed with the socket shell through a radial sealing ring.
4. A high current watertight connector as claimed in claim 3, wherein: the periphery of the contact pin contact piece is provided with a step structure for enhancing the binding force with the socket insulator.
5. A high current watertight connector as claimed in claim 3, wherein: the socket insulator and the socket shell are fixed through tail glue filling.
6. The high current watertight connector of claim 5 wherein: an annular groove is formed between the part of the tail of the contact pin contact element, which extends out of the socket insulator, and the socket shell, and epoxy glue is filled in the annular groove from the tail of the socket shell to fix the socket insulator and the socket shell.
7. The high current watertight connector of claim 6 wherein: the periphery of the tail part of the contact pin contact element is provided with a plurality of ring grooves for enhancing the cementing force, and the socket shell is also internally provided with a plurality of ring grooves for enhancing the cementing force.
8. The high current watertight connector of claim 1 wherein: the front end of the socket insulator is provided with an annular end face which is matched and attached with the front end of the plug vulcanizing body, the inner ring of the annular end face extends forwards to form a sealing ring which is matched with the upper turned-in edge of the plug vulcanizing body, and the front end of the sealing ring is provided with a guiding chamfer.
9. A high current watertight connector plug, characterized in that it is a plug according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145992.3A CN113948906B (en) | 2021-09-28 | 2021-09-28 | Heavy-current watertight connector and plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145992.3A CN113948906B (en) | 2021-09-28 | 2021-09-28 | Heavy-current watertight connector and plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113948906A CN113948906A (en) | 2022-01-18 |
| CN113948906B true CN113948906B (en) | 2024-04-16 |
Family
ID=79328918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111145992.3A Active CN113948906B (en) | 2021-09-28 | 2021-09-28 | Heavy-current watertight connector and plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113948906B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763460A (en) * | 1970-09-25 | 1973-10-02 | Vibro Meter Ag | Cable plug |
| US3845450A (en) * | 1972-12-26 | 1974-10-29 | Bendix Corp | Underwater electrical connector |
| US4767350A (en) * | 1986-06-20 | 1988-08-30 | Amp Incorporated | Receptacle and plug assembly |
| JPH0785925A (en) * | 1993-09-13 | 1995-03-31 | Hitachi Ltd | Sealed connector |
| US6179657B1 (en) * | 1998-03-11 | 2001-01-30 | Yazaki Corporation | Waterproof connector and method of assembling the same |
| CN101615748A (en) * | 2009-07-17 | 2009-12-30 | 中航光电科技股份有限公司 | Straight cutting pulls out water-sealed connector component and plug and socket thereof |
| CN201466319U (en) * | 2009-05-25 | 2010-05-12 | 中航光电科技股份有限公司 | High-voltage resistant electric connector and high-voltage resistant electric connector assembly |
| DE102010000515A1 (en) * | 2010-02-23 | 2011-08-25 | A. u. K. Müller GmbH & Co KG, 40595 | Plug connector for connecting electrical cables and/or electrical components e.g. magnetic valves, in sanitary technique, has electrical conductive plug and female contacts arranged next to each other in electrical isolating housing |
| CN102379069A (en) * | 2009-11-13 | 2012-03-14 | Join株式会社 | Connector |
| CN102449858A (en) * | 2009-08-03 | 2012-05-09 | 矢崎总业株式会社 | Connector |
| CN103050831A (en) * | 2012-12-18 | 2013-04-17 | 中航光电科技股份有限公司 | Deepwater seal connector and manufacturing method thereof |
| DE102013008823A1 (en) * | 2013-05-24 | 2014-11-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Electrical assembly |
| CN109524859A (en) * | 2018-12-25 | 2019-03-26 | 安徽华成电子科技有限公司 | Three 90 ° of cores band auxiliary signal connector |
-
2021
- 2021-09-28 CN CN202111145992.3A patent/CN113948906B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763460A (en) * | 1970-09-25 | 1973-10-02 | Vibro Meter Ag | Cable plug |
| US3845450A (en) * | 1972-12-26 | 1974-10-29 | Bendix Corp | Underwater electrical connector |
| US4767350A (en) * | 1986-06-20 | 1988-08-30 | Amp Incorporated | Receptacle and plug assembly |
| JPH0785925A (en) * | 1993-09-13 | 1995-03-31 | Hitachi Ltd | Sealed connector |
| US6179657B1 (en) * | 1998-03-11 | 2001-01-30 | Yazaki Corporation | Waterproof connector and method of assembling the same |
| CN201466319U (en) * | 2009-05-25 | 2010-05-12 | 中航光电科技股份有限公司 | High-voltage resistant electric connector and high-voltage resistant electric connector assembly |
| CN101615748A (en) * | 2009-07-17 | 2009-12-30 | 中航光电科技股份有限公司 | Straight cutting pulls out water-sealed connector component and plug and socket thereof |
| CN102449858A (en) * | 2009-08-03 | 2012-05-09 | 矢崎总业株式会社 | Connector |
| CN102379069A (en) * | 2009-11-13 | 2012-03-14 | Join株式会社 | Connector |
| DE102010000515A1 (en) * | 2010-02-23 | 2011-08-25 | A. u. K. Müller GmbH & Co KG, 40595 | Plug connector for connecting electrical cables and/or electrical components e.g. magnetic valves, in sanitary technique, has electrical conductive plug and female contacts arranged next to each other in electrical isolating housing |
| CN103050831A (en) * | 2012-12-18 | 2013-04-17 | 中航光电科技股份有限公司 | Deepwater seal connector and manufacturing method thereof |
| DE102013008823A1 (en) * | 2013-05-24 | 2014-11-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Electrical assembly |
| CN109524859A (en) * | 2018-12-25 | 2019-03-26 | 安徽华成电子科技有限公司 | Three 90 ° of cores band auxiliary signal connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113948906A (en) | 2022-01-18 |
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