CN219417798U

CN219417798U - MU adapter

Info

Publication number: CN219417798U
Application number: CN202320290499.9U
Authority: CN
Inventors: 张业; 肖时军; 韩绍友; 张建刚; 向光明; 殷庆; 刘亮亮; 欧阳华斌
Original assignee: Shenzhen Special Light Network Communication Co ltd; Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Special Light Network Communication Co ltd; Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-07-25
Anticipated expiration: 2033-02-17

Abstract

The embodiment of the utility model provides an MU adapter, which comprises a shell and ceramic sleeves assembled in the shell, wherein a group of jacks which are in one-to-one correspondence with each other are respectively arranged on two opposite sides of the shell, two opposite ends of the ceramic sleeves are respectively arranged in two corresponding jacks which belong to different groups and are mutually corresponding to each other for inserting corresponding optical fiber connectors, the shell comprises two connecting seats which are mutually butted and fixed, each connecting seat is provided with a group of jacks on one side far away from the butting side, the butting side of each connecting seat is provided with an elastic clamping arm and a clamping part, and the elastic clamping arm on each connecting seat is correspondingly clamped and fixed with the clamping part on the other connecting seat. The MU adapter of the embodiment adopts two connecting seats which are mutually butted and fixed, and is fastened and fixed by the elastic clamping arms and the fastening parts, so that the assembly of the ceramic sleeve can be effectively facilitated.

Description

MU adapter

Technical Field

The embodiment of the utility model relates to the technical field of optical fiber adapters, in particular to an MU adapter.

Background

One conventional MU (MINIATURE UNIT) adapter includes a housing having receptacles at opposite ends thereof, and a ceramic sleeve assembled inside the housing and having opposite ends inserted into the receptacles, respectively. When the MU adapter is specifically abutted to the optical fiber connectors, the two optical fiber connectors are respectively inserted into the two jacks from the two ends of the shell, and the ceramic sleeve is sleeved on the ferrules led out from the ends of the two optical fiber connectors.

The inventor found in practical implementation that, when manufacturing the MU adapter, the housing is integrally injection molded, and when assembling the prefabricated ceramic sleeve into the housing, the housing is relatively troublesome to install due to the limitation of the internal space and shape of the housing, and only the internal space of the housing can be enlarged to facilitate the assembly of the ceramic sleeve, thereby causing the housing to occupy a relatively large space.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is to provide the MU adapter which can facilitate the installation of the ceramic sleeve.

In order to solve the technical problems, the embodiment of the utility model provides the following technical scheme: the utility model provides a MU adapter, includes the casing and assemble in the inside ceramic sleeve pipe of casing, the relative both sides of casing respectively are equipped with a set of jack that corresponds one by one each other, the relative both ends of ceramic sleeve pipe are arranged in respectively and are divided different group and two that correspond each other in the jack for corresponding fiber optic connector inserts, the casing includes two fixed connecting seats of butt joint each other, every the connecting seat is all equipped with a set of jack in a side of keeping away from the butt joint side, every the butt joint side of connecting seat all is provided with elasticity arm and buckle portion, every elasticity arm on the connecting seat all corresponds the buckle with another buckle portion on the connecting seat and is fixed.

Further, the two connecting seats have the same structure, and the elastic clamping arms and the clamping parts on each connecting seat are symmetrically arranged.

Further, the butt joint side of every connecting seat still is provided with the spacing piece of evagination and sunken positioning groove, and on every connecting seat spacing piece with the positioning groove symmetry sets up each other, and spacing piece on every connecting seat all with another the positioning groove grafting cooperation of connecting seat.

Further, each elastic clamping arm is arranged at the same position of the connecting seat with a corresponding positioning groove, the elastic clamping arms and the positioning grooves are respectively arranged on the inner side and the outer side of the connecting seat in the thickness direction, and when the two connecting seats are in butt joint, the limiting piece of each connecting seat is inserted into the corresponding positioning groove and then correspondingly covers the other elastic clamping arm corresponding to the connecting seat.

Furthermore, each connecting seat is correspondingly provided with a slot for the elastic clamping arm to be inserted in one-to-one correspondence, each slot is internally provided with one clamping part, and the side wall of one slot of each slot is also provided with a process hole which penetrates through the outer surface of the connecting seat so as to facilitate disassembly and assembly as well as injection mold molding.

Further, the buckle part is a clamping hook, a clamping groove is formed in the free end of the elastic clamping arm, and a guiding inclined plane used for guiding the elastic clamping arm to deform is further formed in one side of the clamping hook towards the direction in which the elastic clamping arm is inserted.

Further, each group of jacks comprises a plurality of jacks, the hole walls on two opposite sides of each jack are respectively protruded towards the inside of each jack to form a partition plate so as to divide each jack into two insertion gaps for inserting the optical fiber connectors, and each insertion gap is internally inserted with a corresponding end of the ceramic sleeve.

Further, a limiting end wall for limiting the insertion depth of the optical fiber connector is further formed at the inner end of each jack, a through hole for the ceramic sleeve to extend into the jack is formed in each limiting end wall, a supporting sleeve with a preset length protruding towards the direction of the hole opening at the outer end of the jack is further formed in each limiting end wall, the inner holes of the supporting sleeves are coaxial with the through holes and are mutually communicated, and the corresponding ends of the ceramic sleeves penetrate through the through holes and are positioned in the supporting sleeve in a plugging mode.

Further, each of the two sides of the connection base in the length direction is provided with a fixing structure for fixing the MU adapter to a corresponding fixing base body, and the fixing structure is at least one of the following structures:

the fixing structure is a lug protruding from the butt joint side of each connecting seat towards the edge, the butt joint surface of each lug is provided with a positioning column and a positioning hole at the symmetrical position respectively, when the two connecting seats are in butt joint, the lugs on the two connecting seats are respectively correspondingly attached to the butt joint surfaces to form a fixing seat for fixing the MU adapter to the fixing base, and the positioning column on each lug is correspondingly inserted and positioned with the positioning hole on the corresponding other lug; and

the fixing structure is an elastic cantilever which is arranged on two sides of the length direction of each connecting seat and is used for being in snap fit with the snap structure on the fixing base body.

Further, the ceramic sleeve is a C-shaped pipe fitting with a deformation expansion joint arranged on the side wall along the length.

After the technical scheme is adopted, the embodiment of the utility model has at least the following beneficial effects: the shell of the MU adapter is formed by butt joint of the two connecting seats, when the MU adapter is specifically assembled, the ceramic sleeve can be assembled at the inner end part of the jack of one connecting seat, then the two connecting seats are in butt joint, the other end of the ceramic sleeve is gradually inserted into the inner end part of the jack of the other connecting seat, and meanwhile, the elastic clamping arm on each connecting seat is correspondingly clamped and fixed with the clamping part on the other connecting seat, so that the two connecting seats are firmly connected, and the ceramic sleeve can be simply and conveniently installed.

Drawings

Fig. 1 is a schematic diagram of a split structure of an alternative embodiment of the MU adapter of the present utility model.

Fig. 2 is a schematic diagram illustrating an assembled structure of an alternative embodiment of the MU adapter according to the present utility model.

FIG. 3 is a schematic cross-sectional view of an alternative embodiment of the MU adapter of the present utility model along the length of a resilient clip arm.

FIG. 4 is a schematic cross-sectional view of an alternative embodiment of the MU adapter of the present utility model along an axial plane in the length of a ceramic sleeve.

Fig. 5 is a schematic view of the ceramic sleeve of an alternative embodiment of the MU adapter of the present utility model.

Detailed Description

The present application is described in further detail below with reference to the drawings and specific examples. It should be understood that the following exemplary embodiments and descriptions are only for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that the embodiments and features of the embodiments herein may be combined with one another without conflict.

As shown in fig. 1-4, an alternative embodiment of the present utility model provides an MU adapter, which includes a housing 1 and a ceramic sleeve 3 assembled in the housing 1, wherein a set of jacks 10 corresponding to each other are respectively provided on opposite sides of the housing 1, opposite ends of the ceramic sleeve 3 are respectively disposed in two corresponding jacks 10 belonging to different sets and corresponding to each other for inserting a corresponding optical fiber connector 5, the housing 1 includes two connecting seats 12 fixed in a butt joint manner, each connecting seat 12 is provided with a set of jacks 10 on a side far away from the butt joint side, the butt joint side of each connecting seat 12 is provided with an elastic clamping arm 121 and a clamping part 123, and the elastic clamping arm 121 on each connecting seat 12 is correspondingly clamped and fixed with the clamping part 123 on the other connecting seat 12.

The shell 1 of the MU adapter according to the embodiment of the present utility model is formed by butting two connection seats 12, when the MU adapter is specifically assembled, the ceramic sleeve 3 may be assembled at the inner end of the jack 10 of one of the connection seats 12, then the two connection seats 12 are butted, the other end of the ceramic sleeve 3 is gradually inserted into the inner end of the jack 10 of the other connection seat 12, and simultaneously, the elastic clamping arm 121 on each connection seat 12 is correspondingly clamped and fixed with the clamping part 123 on the other connection seat 12, thereby realizing the stable connection of the two connection seats 12, and simply and conveniently realizing the installation of the ceramic sleeve 3.

In an alternative embodiment of the present utility model, as shown in fig. 1, the two connection seats 12 have the same structure, and the elastic clamping arm 121 and the clamping portion 123 on each connection seat 12 are symmetrically disposed. In this embodiment, the two connection bases 12 have the same structural design, and the MU adapter can be formed only by using one set of injection mold, so as to reduce the production cost. It will be understood that the symmetrical arrangement of the elastic clamping arm 121 and the fastening portion 123 means that the elastic clamping arm is symmetrical in both the thickness direction and the length direction of the connecting seat 12, and when in specific assembly, only two identical connecting seats 12 are needed, and then one connecting seat 12 is turned over for assembly.

In an alternative embodiment of the present utility model, as shown in fig. 1 and 3, the docking side of each connecting seat 12 is further provided with a protruding limiting piece 124 and a recessed positioning groove 125, and the limiting pieces 124 on each connecting seat 12 and the positioning grooves 125 are symmetrically arranged, and the limiting pieces 124 on each connecting seat 12 are in plug-in fit with the positioning grooves 125 of the other connecting seat 12. In this embodiment, the plugging fit between the limiting piece 124 and the positioning groove 125 further enhances the stability of the butt joint of the two connection bases 12, so that the connection bases are not easy to deform and loose.

In an alternative embodiment of the present utility model, as shown in fig. 1 and 3, each of the elastic clamping arms 121 and a corresponding positioning groove 125 are disposed at the same location of the connecting seat 12, and the elastic clamping arms 121 and the positioning groove 125 are disposed at the inner side and the outer side of the connecting seat 12 in the thickness direction respectively, when the two connecting seats 12 are in butt joint, the limiting piece 124 of each connecting seat 12 is inserted into the corresponding positioning groove 125, and then covers the corresponding elastic clamping arm 121 on the other connecting seat 12 correspondingly. In this embodiment, the elastic clamping arm 121 and the positioning groove 125 are disposed at the same location of the connection seat 12, and the elastic clamping arm 121 and the positioning groove 125 are disposed at the inner side and the outer side of the connection seat 12 in the thickness direction respectively, so that the limiting piece 124 can be effectively used to protect the elastic clamping arm 121 located at the inner side when the two connection seats 12 are in butt joint.

In an alternative embodiment of the present utility model, as shown in fig. 1 and 3, each of the connection bases 12 is correspondingly formed with a slot 126 into which the elastic clamping arm 121 is inserted in a one-to-one correspondence manner, each slot 126 is internally formed with one fastening portion 123, and a process hole 127 penetrating to the outer surface of the connection base 12 is further formed on one slot sidewall of each slot 126 to facilitate assembly and disassembly and injection molding. In this embodiment, the slot 126 is further provided, and the fastening portion 123 is disposed in the slot 126, so that the elastic clip arm 121 is matched with the fastening portion 123 after being inserted into the slot 126, and the connection is more stable; and because the buckling part 123 is required to be injection molded at the preset position of the inner wall of the slot 126, the injection mold is convenient to disassemble and assemble by arranging the process hole 127.

In an alternative embodiment of the present utility model, as shown in fig. 1 and 3, the fastening portion 123 is a hook, a fastening groove 121a is provided at a free end of the elastic fastening arm 121, and a guiding inclined plane 123a for guiding deformation of the elastic fastening arm 121 is further provided at a side of the hook 123 facing a direction in which the elastic fastening arm 121 is inserted. In this embodiment, the hook is used to be snapped into the clip groove 121a at the free end of the elastic clip arm 121, so that the snap fit between the snap part 123 and the elastic clip arm 121 can be effectively achieved; and by providing the guiding inclined plane 123a, the elastic clamping arm 121 is effectively guided to elastically deform, so that the assembly is more convenient.

In an alternative embodiment of the present utility model, as shown in fig. 1, each set of jacks 10 includes a plurality of jacks 10, and walls of holes on opposite sides of each jack 10 are respectively protruded toward the inside of the jack 10 to form a partition plate 101 so as to divide the jack 10 into two insertion spaces 103 into which one of the optical fiber connectors 5 is inserted, and a corresponding end of one of the ceramic ferrules 3 is inserted into each of the insertion spaces 103. In this embodiment, a plurality of the jacks 10 are disposed in each connection seat 12, and each jack 10 is provided with a partition board 101 to form two plugging vacancies 103, so that the number of the optical fiber connectors 5 compatible with the MU adapter at the same time can be effectively increased.

In the implementation, as shown in fig. 1, each connection seat 12 is provided with an elastic clamping arm 121, a clamping part 123, a limiting piece 124 and a positioning groove 125 corresponding to each jack 10, so that when each jack 10 is plugged into or pulled out of the optical fiber connector 5, the MU adapter can realize stable connection and is not easy to deform; in addition, it is understood that each set of jacks 10 on each connector base 12 may be arranged in a single row, in a matrix arrangement of multiple rows and columns, in an arc arrangement, etc., and in the embodiment of fig. 1, each set of jacks 10 on each connector base 12 is arranged in a single row and side by side along the length of the connector base 12.

In an alternative embodiment of the present utility model, as shown in fig. 1, 3 and 4, the inner end of each jack 10 is further formed with a limiting end wall 105 for limiting the insertion depth of the optical fiber connector 5, each limiting end wall 105 is formed with a through hole 106 for the ceramic sleeve 3 to extend into the jack 10, and a supporting sleeve 107 protruding for a predetermined length towards the direction of the outer end hole of the jack 10 is further formed on the limiting end wall 105, the inner holes of the supporting sleeve 107 and the through holes 106 are coaxial and mutually communicated, and the corresponding ends of the ceramic sleeve 3 pass through the through holes 106 and are inserted and positioned in the supporting sleeve 107. In this embodiment, the through hole 106 and the support sleeve 107 are further disposed on the limiting end wall 105 of the jack 10, and after the two connection seats 12 are butted, the support sleeves 107 on the two connection seats 12 are combined and spliced to position the ceramic sleeve 3 in the support sleeve 107, so that the ceramic sleeve 3 is not easy to deflect when the ferrule is inserted.

In an alternative embodiment of the present utility model, as shown in fig. 1, two sides of each of the connection seats 12 in the length direction are respectively provided with a fixing structure 128 for fixing the MU adapter to a corresponding fixing base, where the fixing structure 128 is at least one of the following structures:

the fixing structure 128 is a protruding lug protruding from the abutting side of each connecting seat 12 towards the edge, the abutting surface of each lug 128 is provided with a positioning column 128a and a positioning hole 128b at the symmetrical positions, when the two connecting seats 12 are abutted, the lugs 128 on the two connecting seats 12 are respectively abutted with the abutting surface to form a fixing seat 129 for fixing the MU adapter to the corresponding fixing base, and the positioning column 128a on each lug 128 is correspondingly inserted and positioned with the positioning hole 128b on the corresponding other lug 128; and

the fixing structures 128 are elastic cantilevers disposed on two sides of the connecting base 12 in the length direction and used for being in snap fit with the snap structures on the fixing base.

In this embodiment, the fixing seat 129 formed by splicing the lugs 128 of the two connection seats 12 facilitates the connection and fixation between the MU adapter and the corresponding fixing base; the positioning column 128a on each lug 128 is correspondingly inserted and positioned with the positioning hole 128b on the other lug 128, so that the effective positioning of the two lugs 128 is realized, and the connecting and positioning effects of the two connecting seats 12 can be further enhanced; or the elastic cantilever 128 is in snap fit with the fixed matrix, so that the connection and the fixation of the MU adapter and the fixed matrix can be realized; in practice, the solid substrate is typically a fiber holder, fiber panel, or the like; and the two fixing structures can be flexibly selected or both.

In an alternative embodiment of the present utility model, as shown in fig. 5, the ceramic sleeve 3 is a C-shaped pipe having a deformation expansion joint 30 formed along the length of the side wall. In this embodiment, the ceramic ferrule 3 is a C-shaped tube with a deformation expansion joint 30, so that the ceramic ferrule 3 can deform to a certain extent to tightly wrap the ferrule of the optical fiber connector 5.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model.

Claims

1. The utility model provides a MU adapter, includes the casing and assemble in the inside ceramic sleeve pipe of casing, the relative both sides of casing respectively are equipped with a set of jack that corresponds one by one each other, the relative both ends of ceramic sleeve pipe are arranged in respectively and are divided different group and two that correspond each other in the jack for corresponding fiber optic connector inserts, its characterized in that, the casing includes two fixed connecting seats of butt joint each other, every the connecting seat is all equipped with a set of jack in one side of keeping away from the butt joint side, every the butt joint side of connecting seat all is provided with elasticity arm and buckle portion, every elasticity arm on the connecting seat all corresponds the buckle with another buckle portion on the connecting seat and fixes.

2. The MU adapter of claim 1, wherein the two connection bases are identical in structure, and the elastic clip arms and the clip portions on each connection base are symmetrically disposed with respect to each other.

3. The MU adapter according to claim 1 or 2, wherein the docking side of each connecting seat is further provided with a protruding limiting piece and a recessed positioning groove, the limiting piece on each connecting seat and the positioning groove are symmetrically arranged, and the limiting piece on each connecting seat is in plug-in fit with the positioning groove of the other connecting seat.

4. The MU adapter according to claim 3, wherein each of the elastic clamping arms and the corresponding positioning groove are disposed at the same position of the connecting seat, and the elastic clamping arms and the positioning grooves are disposed on the inner side and the outer side of the connecting seat in the thickness direction, respectively, and when the two connecting seats are in butt joint, the limiting piece of each connecting seat is inserted into the corresponding positioning groove and then covers the corresponding elastic clamping arm of the other connecting seat.

5. The MU adapter according to claim 1, wherein each of the connecting seats is formed with a slot into which the elastic clip arm is inserted in one-to-one correspondence, each slot is formed with a fastening portion therein, and a process hole penetrating through an outer surface of the connecting seat to facilitate disassembly and assembly and molding by an injection mold is further formed in one slot sidewall of each slot.

6. The MU adapter according to claim 1 or 5, wherein the fastening portion is a hook, a free end of the elastic clip arm is provided with a clip groove, and a guiding inclined surface for guiding deformation of the elastic clip arm is further provided on a side of the hook facing a direction in which the elastic clip arm is inserted.

7. The MU adapter of claim 1, wherein each set of receptacles includes a plurality of said receptacles, walls on opposite sides of each of said receptacles further each having a partition projecting inwardly of said receptacle to divide said receptacle into two insertion spaces into which one of said fiber optic connectors is inserted, each of said insertion spaces having a corresponding end of one of said ceramic ferrules inserted therein.

8. The MU adapter according to claim 1 or 7, wherein an inner end of each of the insertion holes is further formed with a limiting end wall limiting an insertion depth of the optical fiber connector, each of the limiting end walls is provided with a through hole for the ceramic sleeve to extend into the insertion hole, and a support sleeve protruding a predetermined length toward an outer end opening of the insertion hole is further formed on the limiting end wall, an inner hole of the support sleeve is coaxial with and communicates with the through hole, and a corresponding end of the ceramic sleeve passes through the through hole and is inserted and positioned in the support sleeve.

9. The MU adapter according to claim 1 or 2, wherein two sides in the longitudinal direction of each connection seat are respectively provided with a fixing structure for fixing the MU adapter to a corresponding fixing base, and the fixing structure is at least one of the following structures:

10. The MU adapter of claim 1, wherein the ceramic sleeve is a C-shaped tube with a sidewall provided with a deformation expansion joint along a length.