CN114171961A - Blind installation design of concave-convex joint connector - Google Patents
Blind installation design of concave-convex joint connector Download PDFInfo
- Publication number
- CN114171961A CN114171961A CN202111270909.5A CN202111270909A CN114171961A CN 114171961 A CN114171961 A CN 114171961A CN 202111270909 A CN202111270909 A CN 202111270909A CN 114171961 A CN114171961 A CN 114171961A
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- 238000009434 installation Methods 0.000 title abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- 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
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- 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
- H01R13/42—Securing in a demountable manner
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- 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
Abstract
The invention discloses a blind mounting design of a concave-convex joint connector, and relates to the technical field of joint connectors. The present invention includes an inner connector housing and an outer connector housing; the inner connector shell is in threaded rotation fit with the outer connector shell; the inner wall of the outer connector shell is rotatably matched with a first rotating piece; the first rotating piece is in inserted fit with the concave joint component; the inner wall of the outer shell of the inner connector is matched with a second rotating part in a rotating way; the second rotating piece is matched with a convex joint component in an inserting way; the male connector component is in plug-in fit with the female connector component; the external thread is in threaded running fit with the connecting threaded hole. When the blind installation is carried out, if the male connector is not inserted into the female connector, the threads of the female connector cannot be meshed; simultaneously adopt bevel connection direction auxiliary design at connector female joint top, rotate through the convex joint, stir the concave joint and rotate, the convex joint gets into the recess smoothly under the guide of bevel connection direction, realizes the blind dress of unsmooth joint connector, has improved unsmooth joint connector's installation effectiveness.
Description
Technical Field
The invention belongs to the technical field of joint connectors, and particularly relates to a blind mounting design of a concave-convex joint connector.
Background
The milemeter interfaces of some domestic vehicles are both concave-convex joint connectors, the vehicle chassis is mostly convex joints, the milemeter ends are both concave joints, and the concave-convex joint connectors are fixed by screwing the convex joints of the connectors into the concave joints through the threads of the connectors.
When the concave-convex joint connector is installed, the fact that the male joint of the connector is inserted into the female joint cannot be determined through direct vision, when the male joint of the connector is inserted into the female joint, most of the male joint of the connector is abutted against the top end of the female joint of the connector and needs to be unplugged and installed again, if strong force is applied, the male joint of the connector is screwed in through threads, the concave joint of the odometer end is damaged, the female joint of the odometer end is damaged when the concave joint of the odometer end is installed, and even the transmission part of the odometer is damaged; simultaneously, protruding joint and female joint are integrated design respectively in the connector of current unsmooth joint, in case damage appears in the installation, then can lead to unsmooth joint connector whole to scrap, and use cost is higher, need dismantle the unsmooth joint connector of damage again to reinstallate new unsmooth joint connector, reduced unsmooth joint connector's installation effectiveness.
Disclosure of Invention
The invention aims to provide a blind mounting design of a concave-convex joint connector, wherein when the blind mounting is carried out, if a convex joint is not inserted into a concave joint, the threads of the concave-convex joint connector cannot be meshed; simultaneously adopt bevel connection direction auxiliary design at connector female joint top, rotate through the convex joint, stir the concave joint and rotate, the convex joint gets into the recess smoothly under the guide of bevel connection direction, realizes the blind dress of unsmooth joint connector, has improved unsmooth joint connector's installation effectiveness.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a blind mounting design of a concave-convex joint connector, which comprises an inner connector shell and an outer connector shell; the inner connector housing is in threaded rotational fit with the outer connector housing;
a first rotating piece is rotatably matched on the inner wall of the outer connector shell; the first rotating piece is in inserted fit with the female joint assembly;
the inner wall of the outer shell of the inner connector is matched with a second rotating part in a rotating way; the second rotating piece is matched with a convex joint component in an inserting way;
the male connector assembly is in plug-in fit with the female connector assembly;
the female fitting assembly includes a first fitting; a groove is formed in the surface of one end of the first joint; one end of the first joint is provided with an inclined opening in a guiding design;
a rotating hole and a connecting threaded hole are sequentially formed in the inner wall of the outer connector shell, close to one end of the outer connector shell, from outside to inside; the peripheral side surface of the outer shell of the inner connector is provided with an external thread; the external thread is in threaded running fit with the connecting threaded hole.
Furthermore, a first annular groove channel is formed in the inner wall of the outer connector shell close to the other end; a second annular groove is formed in the inner wall of the first annular groove; the first rotating member includes a first connecting shaft; the circumferential side surface of the first connecting shaft is fixedly connected with a first annular rail; the first connecting shaft is in running fit with the first annular groove; the first annular rail is rotationally matched with the second annular groove.
Furthermore, one end of the first connecting shaft is provided with a first connecting head; a first slot is formed at the other end of the first connecting shaft; one end of the first joint is in running fit with the first slot; first threaded holes are distributed in a circumferential array at one end of the first connecting shaft, close to the first slot; the peripheral side surface of the first joint is fixedly connected with a first annular baffle; the surface of the first annular baffle is provided with first mounting holes in a circumferential array distribution; the first mounting hole is fixedly connected with the first threaded hole through a fastening bolt.
Further, a third annular groove is formed in the inner wall of the inner connector shell; a fourth annular groove channel is formed in the inner wall of the third annular groove channel; the second rotating member includes a second connecting shaft; the peripheral side surface of the second connecting shaft is fixedly connected with a second annular rail; the second connecting shaft is in running fit with the third annular groove; and the second annular rail is in running fit with the fourth annular channel.
Furthermore, one end of the second connecting shaft is provided with a second connector; a second slot is formed in the other end of the second connecting shaft; the male connection end assembly comprises a second connection end; the second joint is in running fit with the second slot; second threaded holes are distributed in the second connecting shaft close to the second slot in a circumferential array; the peripheral side surface of the second joint is fixedly connected with a second annular baffle; the surface of the second annular baffle is provided with second mounting holes in a circumferential array distribution; and the second mounting hole is fixedly connected with the second threaded hole through a fastening bolt.
Further, the other end of the second joint is fixedly connected with a convex plate; the convex plate is in inserting fit with the groove.
Furthermore, the outer wall of the second connector is distributed in a circumferential array and fixedly connected with second connecting rods; the end part of each second connecting rod is fixedly connected with a second annular handle; the side surface of the second annular handle is provided with anti-skid grains.
Further, one end of the inner connector shell is fixedly connected with an annular sealing plate; the surface of the annular sealing plate is distributed in a circumferential array and fixedly connected with first connecting rods; the end part of each first connecting rod is fixedly connected with a first annular handle; the side surface of the first annular handle is provided with anti-skid grains.
The invention has the following beneficial effects:
1. in the invention, a connector guide hole design is adopted at the concave head part of the connector, and a partial thread design is changed into a hole design, namely, a rotating hole and a connecting threaded hole are sequentially formed at one end, close to the outer shell of the outer connector, of the inner wall of the outer shell from outside to inside; meanwhile, the bevel connection guide design at one end of the first connector is adopted, the first connector is stirred to rotate through the rotation of the convex plate, the convex plate smoothly enters the groove under the guide of the bevel connection guide, the blind installation of the concave-convex connector is realized, and the installation accuracy and efficiency are improved.
2. According to the invention, the first rotating member is in plug fit with the female connector assembly, the second rotating member is in plug fit with the male connector assembly and is fixed by the fastening bolts respectively, so that the integrated design of the male connector and the female connector in the traditional concave-convex connector is replaced, the structure is simple, the assembly and the disassembly are convenient, the use cost is reduced, and meanwhile, the installation efficiency of the concave-convex connector is further improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a blind-mate design of a male and female connector of the present invention.
Fig. 2 is a schematic structural view of the inner connector housing of the present invention.
Fig. 3 is a schematic view of the structure of the outer connector housing of the present invention.
Fig. 4 is a schematic structural diagram of the first rotating member of the present invention.
Fig. 5 is a schematic view of the female terminal assembly of the present invention.
Fig. 6 is a schematic structural diagram of a second rotating member according to the present invention.
FIG. 7 is a schematic view of the male connection end assembly of the present invention.
Fig. 8 is a schematic structural view of an assembly of the second rotating member and the male coupling member according to the present invention.
Fig. 9 is a schematic structural view of the first rotating member and female joint assembly of the present invention.
Fig. 10 is a schematic view of the female connector assembly and the outer connector housing assembly of the present invention.
Fig. 11 is a schematic structural view of the male connector assembly and the female connector housing assembly of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-inner connector housing, 2-outer connector housing, 3-first rotating member, 4-female joint assembly, 5-second rotating member, 6-male joint assembly, 7-first joint, 8-groove, 9-rotating hole, 10-connecting threaded hole, 11-external thread, 12-first annular channel, 13-second annular channel, 14-first connecting shaft, 15-first annular rail, 16-first joint, 17-first slot, 18-first threaded hole, 19-first annular baffle, 20-first mounting hole, 21-third annular channel, 22-fourth annular channel, 23-second connecting shaft, 24-second annular rail, 25-second connecting head, 26-second slot, 27-a second threaded hole, 28-a second annular baffle, 29-a second mounting hole, 30-a convex plate, 31-a second connecting rod, 32-a second annular handle, 33-an annular sealing plate, 34-a first connecting rod, 35-a first annular handle, 36-a second joint.
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. 1-11, the present invention is a blind mount design of a male-female connector, comprising an inner connector housing 1 and an outer connector housing 2; the inner connector shell 1 is in threaded rotation fit with the outer connector shell 2; a first rotating piece 3 is rotatably matched on the inner wall of the outer connector shell 2; the first rotating piece 3 is in inserted fit with a female joint component 4; the inner wall of the inner connector shell 1 is matched with a second rotating part 5 in a rotating way; the second rotating piece 5 is inserted and matched with a convex joint component 6; the male connector assembly 6 is in plug-in fit with the female connector assembly 4; the female coupling assembly 4 comprises a first coupling 7; a groove 8 is formed in the surface of one end of the first joint 7; one end of the first joint 7 is provided with an inclined opening for guiding; a rotating hole 9 and a connecting threaded hole 10 are sequentially formed in one end, close to the inner wall of the outer connector shell 2, of the outer connector from outside to inside; the peripheral side surface of the inner connector shell 1 is provided with an external thread 11; the external thread 11 is in threaded rotation fit with the connecting threaded hole 10; in the female head part of the connector, a connector guide hole design is adopted, and a partial thread design is changed into a hole design, namely, a rotating hole 9 and a connecting threaded hole 10 are sequentially formed in one end, close to the outer connector shell 2, of the inner wall from outside to inside, and when the connector is blind-mounted, if a convex plate 30 is not inserted into a groove 8, threads of the inner connector shell 1 and the outer connector shell 2 cannot be meshed; meanwhile, in the bevel guide design of one end of the first connector 7, the first connector 7 is stirred to rotate through the rotation of the convex plate 30, the convex plate 30 smoothly enters the groove 8 under the guide of the bevel guide, the blind installation of the concave-convex connector is realized, and the installation accuracy and efficiency are improved.
Wherein, the inner wall of the outer connector shell 2 near the other end is provided with a first annular groove 12; a second annular groove 13 is formed on the inner wall of the first annular groove 12; the first rotating member 3 includes a first connecting shaft 14; the peripheral side surface of the first connecting shaft 14 is fixedly connected with a first annular rail 15; the first connecting shaft 14 is in running fit with the first annular channel 12; the first annular rail 15 is in running fit with the second annular channel 13; one end of the first connecting shaft 14 is provided with a first connecting head 16; the other end of the first connecting shaft 14 is provided with a first slot 17; one end of the first joint 7 is in running fit with the first slot 17; first threaded holes 18 are distributed on one end of the first connecting shaft 14 close to the first slot 17 in a circumferential array; a first annular baffle plate 19 is fixedly connected to the peripheral side surface of the first joint 7; the surface of the first annular baffle plate 19 is provided with first mounting holes 20 in a circumferential array distribution; the first mounting hole 20 is fixedly connected with the first threaded hole 18 through a fastening bolt; by inserting the first joint 7 into the first slot 17 and sequentially passing the fastening bolt through the first mounting hole 20 and the first threaded hole 18, the first joint 7 is fixedly mounted on the first connecting shaft 14, and is convenient to mount, dismount and replace.
Wherein, the inner wall of the inner connector shell 1 is provided with a third annular groove 21; a fourth annular channel 22 is formed on the inner wall of the third annular channel 21; the second rotating member 5 includes a second connecting shaft 23; the peripheral side surface of the second connecting shaft 23 is fixedly connected with a second annular rail 24; the second connecting shaft 23 is in running fit with the third annular channel 21; the second annular rail 24 is rotationally matched with the fourth annular channel 22; one end of the second connecting shaft 23 is provided with a second connector 25; the other end of the second connecting shaft 23 is provided with a second slot 26; the male connection end assembly 6 includes a second connection end 36; the second connector 36 is rotationally engaged with the second slot 26; second threaded holes 27 are distributed on the second connecting shaft 23 close to the second slot 26 in a circumferential array; the peripheral side surface of the second joint 36 is fixedly connected with a second annular baffle 28; second mounting holes 29 are distributed on the surface of the second annular baffle 28 in a circumferential array; the second mounting hole 29 is fixedly connected with the second threaded hole 27 through a fastening bolt; the second joint 36 is fixedly mounted on the second connecting shaft 23 by inserting the second joint 36 into the second slot 26 and sequentially passing the fastening bolt through the second mounting hole 29 and the second threaded hole 27, so that the second joint 36 is convenient to mount, dismount and replace.
Wherein, the other end of the second joint 36 is fixedly connected with the convex plate 30; the convex plate 30 is matched with the groove 8 in an inserting way; the outer wall of the second connector 25 is distributed in a circumferential array and fixedly connected with second connecting rods 31; the end of each second connecting rod 31 is fixedly connected with a second annular handle 32; the circumferential side surface of the second annular handle 32 is provided with anti-skid grains; through rotating second annular handle 32, drive second connecting axle 23 and rotate together with flange 30 to stir first joint 7 and rotate, flange 30 gets into recess 8 smoothly under the guide of bevel connection direction, realizes the blind dress of unsmooth joint connector, improves the accuracy and the efficiency of installation.
Wherein, one end of the inner connector shell 1 is fixedly connected with an annular sealing plate 33; the surface of the annular sealing plate 33 is distributed and fixedly connected with first connecting rods 34 in a circumferential array; a first annular handle 35 is fixedly connected to the end of each first connecting rod 34; the side surface of the first annular handle 35 is provided with anti-skid grains; the female connector housing 1 is screwed in the male connector housing 2 by rotating the first annular handle 35, so that the female connector housing 1 and the male connector housing 2 are fixedly connected by the screw.
The specific working principle of the invention is as follows:
in the female head part of the connector, a connector guide hole design is adopted, and a partial thread design is changed into a hole design, namely, a rotating hole 9 and a connecting threaded hole 10 are sequentially formed in one end, close to the outer connector shell 2, of the inner wall from outside to inside, and when the connector is blind-mounted, if a convex plate 30 is not inserted into a groove 8, threads of the inner connector shell 1 and the outer connector shell 2 cannot be meshed; meanwhile, the bevel opening guide design is adopted at one end of the first connector 7, the first connector 7 is stirred to rotate through the rotation of the convex plate 30, and the convex plate 30 smoothly enters the groove 8 under the guide of the bevel opening guide, so that the blind installation of the concave-convex connector is realized, and the installation accuracy and efficiency are improved; the first joint 7 is fixedly mounted on the first connecting shaft 14 by inserting the first joint 7 into the first slot 17 and sequentially passing a fastening bolt through the first mounting hole 20 and the first threaded hole 18; the second joint 36 is fixedly mounted on the second connecting shaft 23 by inserting the second joint 36 into the second slot 26 and sequentially passing the fastening bolt through the second mounting hole 29 and the second threaded hole 27, so that the second joint 36 is convenient to mount, dismount and replace.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The blind dress design of unsmooth joint connector, its characterized in that:
comprises an inner connector shell (1) and an outer connector shell (2); the inner connector shell (1) is in threaded rotation fit with the outer connector shell (2);
the inner wall of the outer connector shell (2) is rotatably matched with a first rotating piece (3); the first rotating piece (3) is in inserted fit with a female joint component (4);
the inner wall of the inner connector shell (1) is rotatably matched with a second rotating piece (5); the second rotating piece (5) is matched with a convex joint component (6) in an inserting way;
the male connector assembly (6) is in plug-in fit with the female connector assembly (4);
the female joint assembly (4) comprises a first joint (7); a groove (8) is formed in the surface of one end of the first joint (7); one end of the first joint (7) is provided with an inclined opening in a guiding design;
a rotating hole (9) and a connecting threaded hole (10) are sequentially formed in one end, close to the inner wall of the outer connector shell (2), of the outer connector from outside to inside; the peripheral side surface of the inner connector shell (1) is provided with an external thread (11); the external thread (11) is in threaded running fit with the connecting threaded hole (10).
2. Blind mount design of a male and female joint connector according to claim 1, characterized in that the inner wall of the outer connector housing (2) near the other end is provided with a first annular channel (12); a second annular groove (13) is formed in the inner wall of the first annular groove (12); the first rotating member (3) includes a first connecting shaft (14); the peripheral side surface of the first connecting shaft (14) is fixedly connected with a first annular rail (15); the first connecting shaft (14) is in running fit with the first annular groove (12); the first annular rail (15) is in running fit with the second annular channel (13).
3. Blind mount design of a male and female joint connector according to claim 2, characterized in that the first joint shaft (14) is provided with a first joint (16) at one end; the other end of the first connecting shaft (14) is provided with a first slot (17); one end of the first joint (7) is in running fit with the first slot (17); first threaded holes (18) are distributed in a circumferential array manner at one end of the first connecting shaft (14) close to the first slot (17); a first annular baffle (19) is fixedly connected to the peripheral side surface of the first joint (7); the surface of the first annular baffle (19) is provided with first mounting holes (20) in a circumferential array distribution; the first mounting hole (20) is fixedly connected with the first threaded hole (18) through a fastening bolt.
4. Blind mount design of a male and female joint connector according to claim 1, characterized in that the inner wall of the inner connector housing (1) is provided with a third annular channel (21); a fourth annular groove channel (22) is formed in the inner wall of the third annular groove channel (21); the second rotating member (5) includes a second connecting shaft (23); the peripheral side surface of the second connecting shaft (23) is fixedly connected with a second annular rail (24); the second connecting shaft (23) is in running fit with the third annular groove (21); the second annular rail (24) is rotationally engaged with the fourth annular channel (22).
5. Blind-mate design of a male and female joint connector according to claim 4, characterized in that one end of the second connecting shaft (23) is provided with a second joint (25); the other end of the second connecting shaft (23) is provided with a second slot (26); the male connection end assembly (6) comprises a second connection end (36); the second joint (36) is in rotating fit with the second slot (26); second threaded holes (27) are distributed in the second connecting shaft (23) close to the second slot (26) in a circumferential array; a second annular baffle (28) is fixedly connected to the peripheral side surface of the second joint (36); second mounting holes (29) are distributed on the surface of the second annular baffle (28) in a circumferential array; the second mounting hole (29) is fixedly connected with the second threaded hole (27) through a fastening bolt.
6. Blind-mount design of a male-female joint connector according to claim 4, characterized in that a lug plate (30) is fixedly connected to the other end of the second joint (36); the convex plate (30) is in plug fit with the groove (8).
7. The blind mating design of a male and female connector as claimed in claim 4, wherein the outer wall of the second connector (25) is fixedly connected with second connecting rods (31) in a circumferential array; the end part of each second connecting rod (31) is fixedly connected with a second annular handle (32); the circumferential side surface of the second annular handle (32) is provided with anti-skid grains.
8. Blind mount design for a male and female plug connector according to claim 1, characterized in that an annular sealing plate (33) is fixedly connected to one end of the inner connector housing (1); the surface of the annular sealing plate (33) is distributed in a circumferential array and fixedly connected with first connecting rods (34); the end part of each first connecting rod (34) is fixedly connected with a first annular handle (35); the side surface of the first annular handle (35) is provided with anti-skid grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111270909.5A CN114171961B (en) | 2021-10-29 | 2021-10-29 | Blind fitting design for male and female connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111270909.5A CN114171961B (en) | 2021-10-29 | 2021-10-29 | Blind fitting design for male and female connector |
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| CN114171961A true CN114171961A (en) | 2022-03-11 |
| CN114171961B CN114171961B (en) | 2023-12-19 |
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