CN204065463U - A kind of optical attenuator - Google Patents
A kind of optical attenuator Download PDFInfo
- Publication number
- CN204065463U CN204065463U CN201420394268.3U CN201420394268U CN204065463U CN 204065463 U CN204065463 U CN 204065463U CN 201420394268 U CN201420394268 U CN 201420394268U CN 204065463 U CN204065463 U CN 204065463U
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- CN
- China
- Prior art keywords
- buckle closure
- housing
- elastic projection
- optical attenuator
- hole
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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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Abstract
The utility model provides a kind of optical attenuator, comprise housing, buckle closure and sleeve, described enclosure interior has cavity, two ends have opening, described buckle closure is buckled on the opening at housing two ends, described sleeve is placed in the cavity of enclosure interior, optical fiber IO channel is provided with in sleeve, described buckle closure comprises buckle closure body and buckle closure head, buckle closure body can insert described housing, buckle closure body outer surface has elastic projection, with elastic projection cooperatively, housing is provided with through hole, elastic projection moves with buckle closure and inserts or extract described through hole, when elastic projection inserts in described through hole, the end of described elastic projection protrudes from housing outer surface.The utility model optical attenuator structure is simple, time saving and energy saving when installing, cost is low.
Description
Technical field
The utility model relates to optical attenuator, particularly relates to a kind of optical attenuator with buckle closure.
Background technology
Along with the development of the communication technology, Optical Fiber Transmission is applied in communication system more and more.Light transmits the restriction being subject to being totally reflected law in a fiber, cannot scatter out, and keeps the relatively stable of intensity.And once it departs from optical fiber, add airspace between optical fiber and optical fiber, light will scatter out, thus causes the decay of light.Very by force, damping capacity to be made to control in certain scope because light incides scattering in air from ordinary optic fibre for this reason, the aligning of isolation distance and maintenance two ends optical fiber will be guaranteed.Can manufacturing flange formula fixed optical attenuator and adjustable optical attenuator by this principle.Flange form fixed optical attenuator adopts isolation attenuator, makes certain thickness attenuator according to curve map, by attenuator implantation flange, just can play the effect of fixed light decay.Flange form adjustable optical attenuator adopts mechanical Principle of Rotating, rotates the distance between adjustment two terminal adapter, can make optical attenuation between 0 ~ 30dB by machinery.
According to the difference of contour structures, optical attenuator can be divided into SC, LC, the forms such as FC substantially, according to the difference of docking end face, can be divided into the forms such as PC, UPC, APC.Wherein, the shape that SC represents joint is rectangle, adopts engineering plastics, high temperature resistant, is not easy oxidation; LC joint is similar to SC joint geometry, smaller compared with SC joint; FC joint is metal joint, and the times of capable of being inserted and pulled out of metal joint is more than adapter of plastic.The end face that PC represents joint is flat, most widely used general in telecommunication apparatus; The end face that UPC represents joint is sphere; The end face that APC represents joint is inclined-plane.
SC fibre optic attenuator can be divided into simply connected or double structure, has ear or without ear structure, is generally insert-pull pin bar-type, does not need to rotate, plug operation.SC fibre optic attenuator generally comprises housing and end cap, and end cap is buckled on the opening at housing two ends, is pulled up by end cap during use.Existing SC fibre optic attenuator compares when being pulled up by end cap wastes time and energy.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of optical attenuator, and its structure is simple, time saving and energy saving when installing, and cost is low.
For realizing above object, the utility model is achieved through the following technical solutions:
A kind of optical attenuator, comprise housing, buckle closure and sleeve, described enclosure interior has cavity, two ends have opening, and described buckle closure is buckled on the opening at housing two ends, and described sleeve is placed in the cavity of enclosure interior, is provided with optical fiber IO channel in sleeve.Described buckle closure comprises buckle closure body and buckle closure head, buckle closure body can insert described housing, buckle closure body outer surface has elastic projection, with elastic projection cooperatively, housing is provided with through hole, elastic projection moves with buckle closure and inserts or extract described through hole, and when elastic projection inserts in described through hole, the end of described elastic projection protrudes from housing outer surface.
Preferably, with described elastic projection cooperatively, described housing is also provided with guide groove, and described elastic projection to be shifted to or away from described through hole along described guide groove.
Preferably, described buckle closure body can be cylindric, and the projection of outside surface is only described projection; Also can be made up of one piece of inserted sheet, the bottom surface of the vertical described buckle closure head of described inserted sheet, the projection of described inserted sheet outside surface is only described projection.
Preferably, described housing is rectangular-shaped, and the interior rib corner of rectangular parallelepiped has strip rib muscle.
Preferably, the end face of the outside surface of described buckle closure head is also provided with groove, the side of the outside surface of described buckle closure head is also provided with convex edge.
Preferably, described housing two sides center section can be respectively equipped with picks up the ears, described in pick up the ears that there is through hole.
Preferably, the outside surface that two of described rectangular parallelepiped are relative is also respectively arranged with a metal clips, and two metal clips are connected by bonding jumper, and bonding jumper hoop is placed on an outside surface of rectangular parallelepiped, on the outside surface relative with the outside surface at bonding jumper place, be provided with through hole.
The beneficial effect that the utility model has is:
By arranging elastic projection and through hole respectively on buckle closure and housing, elastic projection is moved with buckle closure insert or extract described through hole, and when elastic projection is plugged in described through hole, the end face of elastic projection protrudes from housing outer surface, like this when without optical attenuator, buckle closure can the opening of firm closure housing, again can when using optical attenuator, by pressing the end face of elastic projection, buckle closure body is extracted housing.
Accompanying drawing explanation
Fig. 1 is an one-piece construction schematic diagram of the present utility model.
Fig. 2 is another one-piece construction schematic diagram of the present utility model.
Fig. 3 is the perspective view of optical attenuator in fig. 2 on A-A direction of removing buckle closure.
Number in the figure illustrates:
10, housing; 12, pick up the ears; 14, grab; 16, metal clips; 17, guide groove; 18, through hole.
20, buckle closure; 22, buckle closure body; 24, buckle closure head; 26, elastic projection.
30, sleeve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Simultaneously see Fig. 1 and Fig. 2.A kind of optical attenuator, comprise housing 10, buckle closure 20 and sleeve 30, described housing 10 inside has cavity, two ends have opening, and described buckle closure 20 is buckled on the opening at housing 10 two ends, described sleeve 30 is placed in the cavity of housing 10 inside, is provided with optical fiber IO channel in sleeve 30.Described buckle closure 20 comprises buckle closure body 22 and buckle closure head 24, buckle closure body 22 can insert described housing 10, buckle closure body 22 outside surface has elastic projection 26, with elastic projection 26 cooperatively, housing 10 is provided with through hole 18, elastic projection 26 moves plug-in mounting with buckle closure 20 or extracts described through hole 18, and when elastic projection 26 is plugged in described through hole 18, described elastic projection 26 protrudes from housing 10 outside surface.
With described elastic projection 26 cooperatively, described housing 10 can also arrange guide groove 17, and described elastic projection 26 to be shifted to or away from described through hole 18 along described guide groove 17.Described elastic projection 26 can be cylindric or other shapes.
Described buckle closure body 22 can be cylindrical shape, and the projection of outside surface can be only described projection 26.Certainly, buckle closure body 22 also can be similar cylindric, and periphery has some annular projections, or stepped projection etc., it will not go into details herein.Described buckle closure body 22 also can be made up of one piece of inserted sheet, and the bottom surface of the vertical described buckle closure head 24 of inserted sheet, the projection of described inserted sheet outside surface can be only described elastic projection 26.The inserted sheet that also can be parallel to each other by two pieces is formed, and also often can be provided with one piece of elastic projection 26 by block inserted sheet on the surface of housing 10 inside surface.Elastic projection 26 can be one-body molded with buckle closure body 22, adopts identical material, also can use the material that elasticity is higher, as rubber.Described sleeve 30 can be the rectangular-shaped of both ends open, and the interior rib corner of rectangular parallelepiped can have strip rib muscle.The outside surface of described buckle closure head 24 can also be provided with groove, so that extract buckle closure 20 from housing 10.In like manner, the outside surface of buckle closure head 24 can also be provided with convex edge.Optical fiber in described buckle closure 20 pairs of sleeves 30 plays dustproof effect.
See Fig. 3.Described housing 10 can single injection-molded, to improve the intensity of housing 10.Housing 10 is inner, can arrange grab 14.The two sides center section of described housing 10 can be respectively equipped with picks up the ears 12, described in pick up the ears 12 can have through hole.The outside surface of housing 10 can also have metal clips 16, so that install.
The outside surface that two of housing 10 are relative can also arrange a metal clips 16, two metal clips 16 respectively connected by bonding jumper, bonding jumper hoop is placed on an outside surface of rectangular parallelepiped.Described through hole 18 can be arranged on the side at bonding jumper place, as shown in Figure 1.Also can be arranged on the outside surface relative with the outside surface at bonding jumper place, as shown in Figure 2, all the other structures of such housing 10 are constant, and therefore existing fibre-optical splice need not carry out any structure modify, just can be mated use.Such as, China Patent Publication No. be CN202025110U patent discloses a kind of fiber adapter, a side of its housing is provided with U groove, this U-lag and existing a kind of conventional fibre-optical splice with the use of, if the through hole of the application 18 is arranged on the side at this U-lag place, then existing fibre-optical splice does corresponding construction adjustment possibly, if but be arranged on the side relative with the side at U-lag place, then need not restructure.Certainly, through hole 18 also can be arranged on the side of U-lag.
Buckle closure 20 in use, as long as the end face of pressing elastic projection 18, just can be pulled away housing 10 by the utility model optical attenuator easily.
Embodiment in the utility model, only for being described the utility model, does not form the restriction to right, other equivalent in fact substituting, all in protection domain of the present utility model that those skilled in that art can expect.
Claims (8)
1. an optical attenuator, comprise housing, buckle closure and sleeve, described enclosure interior has cavity, two ends have opening, described buckle closure is buckled on the opening at housing two ends, described sleeve is placed in the cavity of enclosure interior, optical fiber IO channel is provided with in sleeve, it is characterized in that: described buckle closure comprises buckle closure body and buckle closure head, buckle closure body can insert described housing, buckle closure body outer surface has elastic projection, with described elastic projection cooperatively, housing is provided with through hole, elastic projection moves with buckle closure and inserts or extract described through hole, when elastic projection inserts in described through hole, the end of described elastic projection protrudes from housing outer surface.
2. optical attenuator according to claim 1, is characterized in that: with described elastic projection cooperatively, described housing is also provided with guide groove, and described elastic projection to be shifted to or away from described through hole along described guide groove.
3. optical attenuator according to claim 1, is characterized in that: described buckle closure body is cylindric, and the projection of outside surface is only described projection.
4. optical attenuator according to claim 1, is characterized in that: described buckle closure body comprises one piece of inserted sheet, and the bottom surface of the vertical described buckle closure head of described inserted sheet, the projection of described inserted sheet outside surface is only described projection.
5. the optical attenuator according to any one of Claims 1-4, is characterized in that: described housing is rectangular-shaped, and the interior rib corner of rectangular parallelepiped has strip rib muscle.
6. optical attenuator according to claim 5, is characterized in that: the end face of the outside surface of described buckle closure head is also provided with groove, and the side of the outside surface of described buckle closure head is also provided with convex edge.
7. optical attenuator according to claim 6, is characterized in that: described housing two sides center section is respectively equipped with picks up the ears, described in pick up the ears that there is through hole.
8. optical attenuator according to claim 5, it is characterized in that: the outside surface that two of described rectangular parallelepiped are relative is also respectively arranged with a metal clips, two metal clips are connected by bonding jumper, bonding jumper hoop is placed on an outside surface of rectangular parallelepiped, on the outside surface at bonding jumper place, be provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394268.3U CN204065463U (en) | 2014-07-16 | 2014-07-16 | A kind of optical attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394268.3U CN204065463U (en) | 2014-07-16 | 2014-07-16 | A kind of optical attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065463U true CN204065463U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420394268.3U Expired - Fee Related CN204065463U (en) | 2014-07-16 | 2014-07-16 | A kind of optical attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488404A (en) * | 2021-12-28 | 2022-05-13 | 深圳市欧耐特通讯有限公司 | Fixed attenuator |
-
2014
- 2014-07-16 CN CN201420394268.3U patent/CN204065463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488404A (en) * | 2021-12-28 | 2022-05-13 | 深圳市欧耐特通讯有限公司 | Fixed attenuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |