KR101852049B1 - Optical fiber adapter - Google Patents

Optical fiber adapter Download PDF

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Publication number
KR101852049B1
KR101852049B1 KR1020167024641A KR20167024641A KR101852049B1 KR 101852049 B1 KR101852049 B1 KR 101852049B1 KR 1020167024641 A KR1020167024641 A KR 1020167024641A KR 20167024641 A KR20167024641 A KR 20167024641A KR 101852049 B1 KR101852049 B1 KR 101852049B1
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KR
South Korea
Prior art keywords
adapter
optical fiber
elastic
elastic plate
plug
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KR1020167024641A
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Korean (ko)
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KR20170059428A (en
Inventor
양일 조
Original Assignee
이노 인스트루먼트 (차이나). 인코퍼레이션
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Publication of KR20170059428A publication Critical patent/KR20170059428A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means

Abstract

The present invention relates to an optical fiber adapter, which includes an optical fiber base 1 and an adapter plug 2, 2 'which are inserted into and fixed to the optical fiber base 1 to be connected to each other. The adapter plugs 2 and 2 'are provided with elastic units 3 at their edges 21 and 22 and hook units 34 at the elastic unit 3. The adapter base 1 is provided with clamping grooves 111b and 121b corresponding to the hook portions 34. [ The elastic unit 3 and the adapter plugs 2 and 2 'are pivotally connected so that the elastic unit 3 rotates the adapter plugs 2 and 2' The adapter 34 extends into the clamping grooves 111b and 121b to fix the adapter base 1 and the adapter plugs 2 and 2 '. The optical fiber adapter can realize the function of assembling the optical fiber adapter in position by position fixation and one-time, low processing standard of unit, easy mass production, and slight wear does not affect its use effect.

Description

OPTICAL FIBER ADAPTER

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an optical fiber adapter, and more particularly, to an optical fiber adapter having a plug connector having a function of automatically returning to a home position.

Fiber Optic Adapters (also referred to as fiber optic flanges) are units that can be connected to each other in a fiber-optic transmission, with fiber-optic connectors of different interface types inserted at each end. FC, SC, ST, LC, MTRJ, MPO, E2000, etc., it can be widely used in optical fiber distribution frame (ODF), fiber optic communication equipment, and measuring instruments.

As shown in Fig. 1, the Chinese patent 200410089680.5 relates to " an optical connector adapter having a junction made movable using a slit ", wherein the optical connector adapter includes a first housing body unit 111 and an insertion unit 121 Wherein the first housing body unit 111 and the insertion unit 121 are inserted into each other and then the edges of both are fixed in the following manner. That is, the lock lever 125 is rotated by hand to hook the snap hook 125a connected to the lock lever 125 to the corresponding protruding shaft portion 113n. Such a fixing method has the following defects.

1. Since the above structure fixes the position by using friction and elastic deformation between the snap hook 125a and the nipping shaft portion 113n during the rotation process, it is difficult to mass-produce the product due to a high level of accuracy in unit processing accuracy. If the machining accuracy does not meet the criteria, it can affect the effect of the use, and even if it can not be fixed on the foot, the difficulty of machining the product can be considerably increased.

2. In the above matching, a long-term friction of the projecting shaft portion 113n may cause wear, and if it is worn, the fixing effect is lowered, and therefore the service life of the product is limited.

3. Since the snap hook has directionality in use, the direction of the locking operation may be limited when fixing the position, so that the first housing body unit 111 and the insertion unit 121 can be connected only in a specific direction.

4. The unidirectional snap hook structure described above is not comfortable to use because it applies force to one side when fastening and dismounting, and may affect work efficiency.

According to the present invention, an optical fiber adapter having a fitting structure with a function of automatically returning to a home position is proposed, thereby solving the problem existing in the prior art in fixing an optical fiber adapter.

The technical solution of the present invention is as follows.

An optical fiber adapter, comprising: an adapter base and an adapter plug, wherein the adapter base and the adapter plug are inserted and fixed to each other;

Wherein the adapter plug is provided with an elastic unit at its edge, the elastic unit has a hook portion, the adapter base is provided with a clamping groove corresponding to the hook portion, the elastic unit and the adapter plug are pivotally connected, The elastic unit pressurizes and rotates the facing adapter plug and then automatically returns to the home position to extend the hook into the clamping groove, and the adapter base and the adapter plug are fixed.
The adapter base and the adapter plug are both rectangular, and the rectangular adapter plug is provided with the elastic unit on two opposing edges thereof, and the rectangular adapter base is provided corresponding to the clamping groove.

Compared with the prior art, the present invention has the following beneficial effects.

1. An elastic unit is installed in the optical fiber adapter of the present invention. When the elastic unit is pressed and loosened by the elastic recovery action of the elastic unit, the adapter base and the adapter plug edge are automatically inserted and fixedly connected. Further, Can be assembled.

2. The optical fiber adapter of the present invention is simple in the process of the adapter elastic plate, the adapter rotation shaft, the adapter torsion spring, the adapter base and the adapter FC plug.

3. The side fixing structure of the optical fiber adapter proposed in the present invention does not easily cause wear and tear, and the slight wear does not affect the use effect.

4. Since the side surface fixing structure of the optical fiber adapter proposed in the present invention is provided with symmetrical opposite side surfaces, there is no specific operating direction, so that the position can be fixed in both directions, which is convenient and simple to use.

5. Since the side surface fixing structure of the optical fiber adapter proposed in the present invention is symmetrically provided on the opposite side surfaces, the side surface fixing structure of the optical fiber adapter has a high feeling of use because it applies force to both surfaces during operation.

It is not necessary that all products embodying the present invention simultaneously satisfy all of the above-mentioned advantages.

FIG. 1 is a view illustrating the structure and connection of an optical fiber adapter in the prior art; FIG.
2 is a structural view of an optical fiber adapter according to Embodiment 1 of the present invention;
FIG. 3 is a connection structure of an elastic plate of an optical fiber adapter according to Embodiment 1 of the present invention; FIG.
4 is a connection structure of an elastic plate of an optical fiber adapter according to Embodiment 1 of the present invention;
5 is a state diagram after completion of assembling an optical fiber adapter in Embodiment 1 of the present invention;
6 is an exploded view of an adapter base and an adapter plug of an optical fiber adapter according to Embodiment 1 of the present invention;
7 is a structural view of an optical fiber adapter according to Embodiment 2 of the present invention;
Fig. 8 is a connection structure of an elastic plate of an optical fiber adapter according to Embodiment 2 of the present invention; Fig.
Fig. 9 is a connection structure of an elastic plate of an optical fiber adapter according to Embodiment 2 of the present invention; Fig.
10 is a state diagram after completing the assembly of the optical fiber adapter in Embodiment 2 of the present invention;
11 is an exploded view of an adapter base and an adapter plug of an optical fiber adapter according to Embodiment 2 of the present invention.

The present invention relates to an optical fiber adapter, which includes an adapter base and an adapter plug, wherein the adapter base and the adapter plug are inserted and fixed to each other.

Wherein at least one edge of the adapter is provided with a projection, a fixing clamping groove is formed below the projection, and at the same time, the adapter plug is provided with an elastic unit at the same edge position of the corresponding projection, And a hook portion which can be fixed to the clamping groove at a position below the protrusion. The elastic unit and the adapter plug implement a pivotal rotation connection by automatically returning the elastic unit to a position and hooking the hook part to an elastic member below the protruding frame.

Here, the adapter base and adapter plug can be connected to fiber-optic connectors of different model numbers, and the specific model number can be selected based on the actual situation, so it is not limited here.

Hereinafter, the present invention will be described in more detail with reference to specific examples.

Example 1

As shown in Figs. 2 to 5, the optical fiber adapters proposed in this embodiment are of the FC-FC type, that is, the adapter base and the adapter plug are both used in the FC type adapter connector. The optical fiber adapter includes:

An adapter base (1) used for an FC type optical fiber connector;

Adapters FC plugs for FC type fiber optic connectors (2);

An adapter elastic plate (3);

An adapter rotating shaft 4 used for mounting the adapter elastic plate 3 to the adapter FC plug 2; And

And an adapter torsion spring 5 used to automatically return the adapter elastic plate 3 to the home position.

In this embodiment, the edge 11 and the edge 12 of the adapter base 1 are provided with protrusions on opposite sides 11 and 12 facing each other, and a fixing clamping groove is formed below the protrusions. A protruding portion 111a and a protruding portion 121a are formed at the upper edge of the concave groove 111 and the concave groove 121, And fixed clamping grooves 111b and fixed clamping grooves 121b are formed below the protrusions 111a and the protrusions 121a as shown in FIGS.

The adapter FC plug 2 is provided with the adapter elastic plate 3 on the corresponding protruding portion 111a of the corresponding adapter base 1 and the corresponding lateral edge 21 of the protruding portion 121a, There are two in total. The two adapter elastic plates are installed facing each other and a hook portion 34 is provided under the elastic plate 3 at positions corresponding to the lower fixed clamping grooves 111b and 121b corresponding to the positioning projections 111a and 121a This is shown in Fig. Since the structure, installation method, operating principle and steps of the two elastic plates (3) are exactly the same, one of them will be described as an example, and the manner of installing the elastic plate will be described in detail below.

As shown in Figs. 3 and 4, the adapter FC plug 2 is provided with concave grooves on the edges 21 and 22, respectively. The concave grooves provided on the edge 22 are denoted by 2-2, The adapter rotation shaft 4 accommodating hole 2-2a is provided on the two opposite sides of the concave groove 2-2 and both ends of the adapter rotation shaft 4 are fixed in the accommodation hole 2-2a And the receiving hole may be replaced by a receiving groove and the intermediate portion of the adapter elastic plate 3 is provided on the adapter rotation shaft 4 so that the adapter elastic plate 3 is rotated relative to the adapter rotation shaft 4, A conventional method such as through-hole installation can be used. The main body portion 50 of the adapter torsion spring 5 is installed in the adapter rotation shaft 4 and the main body portion 50 is positioned between the adapter rotation axis 4 and the adapter elastic plate 3, One end 5-1 of the adapter 5 is fixed to the upper half of the adapter elastic plate 3 (the portion where the adapter rotation axis 4 is located), and the end of the adapter torsion spring 5 The other end 5-2 is in close contact with the side surface 2-2b facing inward from the recessed groove 2-2. The above-described mounting method at both ends of the adapter torsion spring 5 realizes the following function. That is, when the worker presses the upper part of the adapter elastic plate 3, the adapter elastic plate 3 rotates while wrapping the adapter rotation shaft 4, and at this time, the 5-1 end of the adapter torsion spring 5 is compressed The adapter torsion spring 5 is twisted to accumulate the resilient restoring force and when the operator releases the pressing force on the upper portion of the adapter elastic plate 3, the elastic recovery force of the adapter torsion spring 5 is transmitted to the adapter elastic plate 3 And the hook portion 34 at the lower portion of the adapter elastic plate 3 is simultaneously moved toward the inside to catch the fixed clamping groove of the adapter base 1 under the corresponding position projection. The adapter base plate 1 and the adapter FC plug 2 are firmly connected and fixed to each other by the function of the adapter elastic plate 3 automatically returning to the home position and engaging with each other.

The installation method of the protrusion of the adapter base 1, the method of installing the adapter elastic plate 3, the method of installing the adapter torsion spring 5, and the installation position are merely examples, and those skilled in the art Various simple conversions can be carried out based on the content, and the technical solution to which the simple conversion is applied falls within the scope of the present invention.

For example, in the present embodiment, each elastic elastic plate 3 has an upper portion 31, an intermediate portion 32, and an upper portion 31. The upper portion 31, the intermediate portion 32, A through hole through which the adapter rotating shaft 4 passes may be provided in the intermediate portion 32 of the adapter elastic plate 3 in this embodiment. Specifically, in this embodiment, the adapter elastic plate 3 The intermediate portion 32 of the adapter 3 is provided with an opening hole 32a at its center and through holes 32b and 32c through which the adapter rotation shaft 4 passes are provided on both lower sides of the opening hole 32a, The main body portion 5-3 of the spring 5 is installed so as to pass through an intermediate portion between both ends penetrating through the two through holes 32b and 32c of the adapter elastic plate 4 where the adapter torsion spring 5 Is fixed to the adapter elastic plate 3 in the following manner. That is, the receiving groove 3-1 is provided on the upper inner side surface of the opening hole 32a of the adapter elastic plate 3 and on the inner side surface of the adjacent side surface, and the 5-1step of the adapter bar spring 5 And is installed in the receiving groove (3-1). The upper portion 31 of the adapter elastic plate 3 is an operating portion subjected to pressure, and a structure capable of increasing friction on the operation outer surface is provided. For example, in the present embodiment, The width of the upper portion 31 of the adapter elastic plate 3 is larger than the width of the middle portion 32 and the lower portion 33 of the adapter elastic plate 3. [ The hook portion 34 is provided on the bottom portion 33 of each elastic elastic plate 3 and each hook portion 34 is formed on the protruding portion 111a or the protruding portion 121a at the corresponding position So that the adapter base 1 and the adapter FC plug 2 can be firmly fixed and connected to each other at the positions of the fixed clamping grooves 111b or the fixed clamping grooves 121b. The width of the lower portion 33 of the adapter elastic plate 3 is smaller than the width of the intermediate portion 32 of the adapter elastic plate 3. [ The upper portion 31, the middle portion 32 and the lower portion 33 of the adapter elastic plate 3 are arranged in a stepped manner in width. This installation is particularly effective for the adapter base 1 and the adapter FC plug 2 By making it more suitable for the structure, the structure arrangement is made more reasonable and each part thickness is more suitable, so that it has better strength and durability. Correspondingly, the concave groove (one side of the concave groove 2-2) provided at the edges 21 and 22 of the adapter FC plug 2 further includes two portions having different widths, wherein the upper portion 2 2c are assembled corresponding to the intermediate portion 32 of the adapter elastic piece 3 and the lower portion 2-2d having a relatively small width is assembled corresponding to the lower portion 33 of the adapter elastic piece 3 Specifically, as shown in Fig.

6, a ceramic sleeve 24 and an FC lock cap 25 are further provided inside the central cylinder 23 of the adapter FC plug 2 in the present embodiment. In this case, The FC lock cap 25 is installed at one end of the ceramic sleeve 24. This is specifically the upper portion of the adapter FC plug 2 and the FC lock cap 25, The ceramic sleeve 24 and the lock cap 25 are assembled in such a manner as shown in FIG. 5. The ceramic sleeve 24 is disposed between the ceramic sleeve 24 and the central cylinder 23.

As shown in Fig. 2, the FC-FC type optical fiber adapter according to the present embodiment has a structure in which the relative elasticity of the adapter elastic plate 3, which is relatively installed using a finger (the thumb and the index finger are simultaneously used, The hook portion 34 at the end of the lower portion 33 of the adapter elastic plate 3 is pushed out by pressing the upper portion 31 so as not to affect the assembly of the adapter base 1 and the adapter FC plug 2 do. Thereafter, the adapter FC plug is inserted into the adapter base 1, and the adapter base 1 and the adapter FC plug 2 are inserted and fixed to each other. After loosening the upper portion 31 of the adapter elastic plate 3 The two adapter elastic plates 3 that are opposed to each other are automatically returned to the position due to the elastic recovery force of the adapter torsion spring 5 and the hook portions 34 of the lower portion 33 of each adapter elastic plate 3 The adapter base 1 and the edge of the adapter FC plug 2 are engaged with each other at the positions of the fixed clamping grooves 111b or the fixed clamping grooves 121b formed below the protrusion 111a or the protrusion 121a, Are firmly fixed and connected.

The FC-FC type optical fiber adapter proposed in this embodiment has the following advantages.

1. Adhesive elastic plate, adapter rotating shaft, adapter torsion spring, adapter base and adapter FC plug is easy to process and the accuracy standard is not high, so mass production is easy.

2. The lateral fixing structure of the FC-FC type optical fiber adapter proposed in this embodiment does not easily cause wear and tear, and slight wear does not affect its use effect.

3. Since the side fixing structure of the FC-FC type optical fiber adapter proposed in the present embodiment is a symmetrical design, there is no specific operating direction, and both positions can be fixed in both directions, which is more convenient to use.

4. Since the side fixing structure of the FC-FC type optical fiber adapter proposed in the present embodiment is a symmetrical design, it is possible to apply force to both sides during operation, and the working feeling is better because the working efficiency is high.

5. The side fixing structure of the FC-FC type optical fiber adapter proposed in this embodiment has the function of automatically returning to the home position and being connected with each other when loosening the given force, so that it is easy to use and simple in steps It is less powerful.

Example 2

As shown in Figs. 7 to 11, the optical fiber adapter proposed in this embodiment uses the FC-SC type, that is, the adapter base, for the FC type optical fiber connector and the SC type optical fiber connector. The optical fiber adapter includes:

An adapter base (1) used for an FC type optical fiber connector;

Adapter SC plug (2 ') used for SC type fiber optic connectors;

An adapter elastic plate (3);

An adapter rotating shaft 4 used for mounting the adapter elastic plate 3 to the adapter SC plug 2 '; And

And an adapter torsion spring 5 used to automatically return the adapter elastic plate 3 to the home position.

Here, the shape, structure, and installation method of the adapter elastic piece in this embodiment are the same as those in Embodiment 1, and the main difference between the present embodiment optical fiber adapter and the Embodiment 1 optical fiber adapter is that the adapter plug structure installation is applied to the SC type optical fiber connector It is. 7 and 11, in one typical implementation of the optical fiber adapter proposed in this embodiment, the adapter SC plug 2 'is mainly comprised of an SC-close mounting cap 23', a ceramic sleeve 24 ), An SC lock cap 25 ', a screw 26, an SC snap hook 27, and an adapter SC cover 28, and the assembly method of the unit is as shown in FIG.

7 to 11, and the structure and the function of each structure correspond to the first embodiment, and thus will not be described in detail here.

As shown in Fig. 7, the FC-SC type optical fiber adapter according to the present embodiment is configured such that the relative elasticity of the adapter elastic plate 3, which is relatively installed using a finger (the thumb and the index finger are simultaneously used, It is possible to prevent the assembly of the adapter base 1 and the adapter SC plug 2 'from being affected by pressing the upper portion 31 so that the hook portion 34 at the end of the lower portion 33 of the adapter elastic plate 3 is opened to the outside Do not. Thereafter, the adapter SC plug 2 'is inserted into the adapter base 1, and the adapter base 1 and the adapter SC plug 2' 31 of the adapter elastic plate 3 are automatically returned to the position due to the elastic recovery force of the adapter torsion spring 5 and the hook portions 34 of the lower portion 33 of each adapter elastic plate 3 Are engaged with each other at points corresponding to fixed clamping grooves 111b or fixed clamping grooves 121b formed below the corresponding protruding bands 111a or protruding bosses 121a so that the adapter base 1 and the adapter SC plugs 2 ') are firmly fixed and connected.

The FC-SC type optical fiber adapter proposed in this embodiment has the following advantages.

1. Adhesive elastic plate, adapter rotating shaft, adapter torsion spring, adapter base and adapter FC plug is easy to process and the accuracy standard is not high, so mass production is easy.

2. The lateral fixing structure of the FC-SC type optical fiber adapter proposed in this embodiment does not easily cause wear and tear, and slight wear does not affect the use effect.

3. Since the side fixing structure of the FC-SC type optical fiber adapter proposed in this embodiment has a symmetrical design, there is no specific operating direction, and both positions can be fixed in both directions, which is more convenient to use.

4. Since the side fixing structure of the FC-SC type optical fiber adapter proposed in the present embodiment is a symmetrical design, it is possible to apply force to both sides during operation, thereby improving the working efficiency.

5. The side fixing structure of the FC-SC type optical fiber adapter proposed in this embodiment has a function of automatically returning to the home position and being connected to each other when the given power is loosened, so that it is convenient to use and simple in steps It is less powerful.

The FC-FC type optical fiber adapter and the FC-SC type optical fiber adapter proposed in the present invention and the above embodiments are suitable for use in an optical fiber tester (OTDR). In use, the adapter base 1 is fixedly installed in the OTDR, The adapter plug 2 is installed to be able to be inserted into and pulled out from the adapter base 1, and the insertion and withdrawal design as described above is very suitable for use in an OTDR in which a variety of adapter plugs are frequently replaced to conduct a detection.

The above preferred embodiments are for explaining the present invention. It is not intended to be exhaustive of the invention, as all details are not illustrative of the preferred embodiment. Accordingly, various modifications and changes may be made based on the description of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The invention is limited only by the claims and equivalents to the full scope of the claims.

Claims (10)

In the optical fiber adapter,
An adapter base and an adapter plug, wherein the adapter base and the adapter plug are inserted and fixed to each other;
Wherein the adapter plug is provided with an elastic unit at its edge, the elastic unit has a hook portion, the adapter base is provided with a clamping groove corresponding to the hook portion, the elastic unit and the adapter plug are pivotally connected, The elastic unit pressurizes the adapter plug to rotate and automatically returns to the home position, the hook portion is extended into the clamping groove, and the adapter base and the adapter plug are fixed;
Wherein the elastic unit is an elastic plate, the elastic plate includes an upper portion, a middle portion and a lower portion, the middle portion of the elastic plate is pivotally connected to the adapter plug through the pivot, And a lower portion of the elastic plate is automatically returned to a first position, and the hook portion is provided at a lower end of the elastic plate;
Wherein the adapter plug is provided with a concave groove on one side where the elastic plate is installed, both ends of the pivot being fixed to two opposite side surfaces of the concave groove, the middle portion of the elastic plate being installed in the pivot;
The width of the upper, middle, and lower portions of the elastic plate gradually decreases in a step-like shape, and correspondingly, the concave groove includes two portions having different widths, the portion having a relatively large width is located above, Characterized in that the portion corresponding to the middle portion of the elastic plate and having a relatively small width corresponds to the lower portion of the elastic plate and a transition projection is provided between the relatively large portion and the relatively small portion, adapter. The method according to claim 1,
Wherein the adapter base and the adapter plug are both rectangular, and the rectangular adapter plug is provided with the elastic unit on two opposing edges thereof, and the rectangular adapter base is provided corresponding to the clamping groove. . 3. The method according to claim 1 or 2,
In the method of installing the clamping grooves,
Wherein a protrusion is provided on an edge of the adapter base, and the clamping groove is formed below the protrusion. 3. The method according to claim 1 or 2,
The elastic unit is pivotally connected to the adapter plug through one pivot, and when the elastic unit receives pressure through one torsional elastic member installed on the pivot, the elastic unit rotates while rotating the pivot and is automatically returned to the home position Wherein the optical fiber adapter comprises: 5. The method of claim 4,
Wherein the torsional spring is a torsion spring, the torsion spring is mounted on the pivot, one end of the torsion spring is fixed to the elastic unit, and the other end is in contact with the side surface of the adapter plug and the elastic unit facing each other Wherein the optical fiber adapter comprises: delete delete delete The method according to claim 1,
Wherein a structure capable of increasing frictional force is provided on an outer surface of an upper portion of the elastic plate. The method according to claim 1,
Wherein the optical fiber adapter is used in an optical fiber tester (OTDR).
KR1020167024641A 2014-05-12 2014-05-12 Optical fiber adapter KR101852049B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/077267 WO2015172286A1 (en) 2014-05-12 2014-05-12 Optical fiber adapter

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KR101852049B1 true KR101852049B1 (en) 2018-04-25

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WO2015172286A1 (en) 2015-11-19
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