CN204129260U - A kind of fibre optic attenuator being easy to regulate - Google Patents
A kind of fibre optic attenuator being easy to regulate Download PDFInfo
- Publication number
- CN204129260U CN204129260U CN201420490295.0U CN201420490295U CN204129260U CN 204129260 U CN204129260 U CN 204129260U CN 201420490295 U CN201420490295 U CN 201420490295U CN 204129260 U CN204129260 U CN 204129260U
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- Prior art keywords
- groove
- guide groove
- top board
- optical fiber
- cylinder
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- Optical Couplings Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model discloses a kind of fibre optic attenuator being easy to regulate, comprise shell, optical fiber and the bent forming device that optical fiber is bent, described shell is provided with the groove for placing optical fiber, the lower corrugated surface that the top board being provided with corrugated surface bottom described bent forming device comprises and the corrugated surface being positioned at bottom portion of groove and top board are staggered, two internal groove side walls of described groove are provided with the first guide groove and second guide groove symmetrical with the first guide groove, the first described guide groove, second guide groove is equal with the angle of the axis of optical fiber, the first adjustment cylinder that top board is adjusted is provided with between the first described guide groove, the second adjustment cylinder that top board is adjusted is provided with between the second described guide groove, the length of described top board is greater than the length of groove and top board is positioned at outside groove two ends is provided with positive stop strip, described groove is provided with the rule for showing top board position, its its Stability Analysis of Structures, the the first adjustment cylinder and second that slides regulates cylinder can change the flexibility of optical fiber, be easy to operation.
Description
Technical field
The utility model relates to fibre optic attenuator field, particularly, relates to a kind of fibre optic attenuator being easy to regulate.
Background technology
Fibre optic attenuator is widely used passive device in optical communication field.For the decay to input optical power, avoid and that photoreceiver produced distortion superpower due to input optical power.Existing fibre optic attenuator, in order to realize continuously adjustabe, have employed the frame mode that publication number is CN 1658023 A, it utilizes bent forming device to realize the degree of crook of optical fiber, to realize the modulation to signal light intensity in optical fiber, to realize adjustable optical attenuation.Adopt the fibre optic attenuator of this structure, when the distance of bent forming device is regulated, need adjustment in use device, namely regulate regulator that bent forming device is moved along guide rail and realize the adjustment of adjusting the distance, according to the service condition of reality, can adopt manually, motor, voltage, the mode such as magnetic field realize regulator, when adopting manual mode, the adjuster bar of connector arranges screw thread, is realized the adjustment of Light deformation device distance by rotation adjusting lever, operate and extremely bother.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of fibre optic attenuator being easy to regulate, its Stability Analysis of Structures, and the first adjustment cylinder and second that slides regulates cylinder can change the flexibility of optical fiber, is easy to adjustment operation.
The technical scheme in the invention for solving the above technical problem is:
A kind of fibre optic attenuator being easy to regulate, comprise shell, optical fiber and the bent forming device that optical fiber is bent, described shell is provided with the groove for placing optical fiber, the lower corrugated surface that the top board being provided with corrugated surface bottom described bent forming device comprises and the corrugated surface being positioned at bottom portion of groove and top board are staggered, two internal groove side walls of described groove are provided with the first guide groove and second guide groove symmetrical with the first guide groove, the first described guide groove, second guide groove is equal with the angle of the axis of optical fiber, the first adjustment cylinder that top board is adjusted is provided with between the first described guide groove, the second adjustment cylinder that top board is adjusted is provided with between the second described guide groove, the length of described top board is greater than the length of groove and top board is positioned at outside groove two ends is provided with positive stop strip, described groove is provided with the rule for showing top board position.
The utility model realize to the principle of the adjustment of fiber middle light signal intensity and the principle of prior art consistent, namely the distance between top board and lower corrugated surface is regulated to change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, realize continuously adjustable optical attenuation.First regulates cylinder and second to regulate cylinder can move along the first guide groove and the second guide groove respectively, because the first described guide groove, the second guide groove are equal with the angle of the axis of optical fiber, make the central shaft of the first guide groove and the second guide groove and optical fiber not parallel, namely the first guide groove and the second guide groove are not parallel with the central shaft of optical fiber when not bending, the first adjustment cylinder and second is made to regulate cylinder when the diverse location of the first guide groove and the second guide groove, the distance adjustment of top board and lower corrugated surface can be realized, the adjustment of fibre-optical bending degree can be realized.The surface of contact of the first adjustment cylinder and top board is only the straight line perpendicular to fiber optic hub axle, because top board has certain length, it is fixing unstable, the second adjustment cylinder and first is utilized to regulate the cooperation of cylinder, top board is fixed from the two ends of top board simultaneously, well ensure that the stability of top board structure, the two ends of top board are balanced, there will not be the situation that the aspect ratio other end of one end is high.When regulating cylinder and second to regulate cylinder to regulate to first of two ends, whether the two ends of top board are contour to utilize rule to observe, namely whether the two ends of top board are parallel stable, compared to the mode regulating cylinder and second to regulate the position of cylinder to show to first, which is more direct, observation of being more convenient for.The position of positive stop strip to top board limits, avoid moving along groove under first regulates cylinder and second regulates the drive of cylinder in the process moved up and down of top board, ensure the corrugated surface of top board and staggering of lower corrugated surface position, namely ensure that top board only moves at upper-lower position.Adopt fibre optic attenuator of the present utility model, it need regulate cylinder and second to regulate cylinder to rotate to first, can change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, realize adjustable optical attenuation, not only structure is simple for it, and is easy to operation.
As preferably, the angle number of degrees between the first described guide groove and the central shaft of optical fiber are greater than 10 degree and are less than 40 degree.Fibre diameter is limited, namely the distance of top board and lower corrugated surface is limited, when the angle number of degrees of the central shaft of the first guide groove and optical fiber are too little, the degree of regulation of fibre optic attenuator is very high, and namely the distance of the first top board when regulating cylinder to move certain distance and bottom portion of groove changes very slow.But, when the angle number of degrees are less, the length of shell needs more long, first adjustment cylinder and second is regulated between cylinder distant, the interlude of top board easily upwarps, namely take into account the length of shell and the precision of fibre optic attenuator, the angle of the central shaft of the first guide groove and optical fiber, in certain scope, is namely greater than 10 degree and is less than 40 degree.
As preferably, the angle number of degrees between the first described guide groove and the central shaft of optical fiber are 35 degree.
Further, for the ease of regulating cylinder and second to regulate cylinder to operate to first, described first regulates cylinder and second to regulate on the arc surface of cylinder is provided with anti-skidding raised line.
To sum up, the beneficial effects of the utility model are:
1, of the present utility model need regulate cylinder and second to regulate cylinder to rotate to first, and can change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, not only structure is simple for it, and is easy to adjustment operation.
2, the utility model utilizes the height of rule to top board two ends to show, and ensures the stability of top board structure, is also convenient to observation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of top board.
Mark and corresponding parts title in accompanying drawing: 1, optical fiber; 2, shell; 21, the first guide groove; 22, the second guide groove; 23, rule; 24, lower corrugated surface; 31, first cylinder is regulated; 32, second cylinder is regulated; 4, top board; 41, positive stop strip.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
A kind of fibre optic attenuator being easy to regulate as depicted in figs. 1 and 2, comprise shell 2, optical fiber 1 and the bent forming device that optical fiber 1 is bent, described shell 2 is provided with the groove for placing optical fiber 1, the lower corrugated surface 24 that the top board 4 being provided with corrugated surface bottom described bent forming device comprises and the corrugated surface being positioned at bottom portion of groove and top board 4 are staggered, two internal groove side walls of described groove are provided with the first guide groove 21 and second guide groove 22 symmetrical with the first guide groove 21, the first described guide groove 21, second guide groove 22 is equal with the angle of the axis of optical fiber 1, the first adjustment cylinder 31 that top board 4 is adjusted is provided with between the first described guide groove 21, the second adjustment cylinder 32 that top board 4 is adjusted is provided with between the second described guide groove 22, the length of described top board 4 is greater than the length of groove and top board 4 is positioned at outside groove two ends is provided with positive stop strip 41, described groove is provided with the rule 23 for showing top board 4 position.First regulates cylinder can move in the first guide groove 21, can utilize and arrange tooth on the first guide groove 21 inwall, regulate first the gear two end faces of cylinder being arranged and matches with tooth, realizes regulating the movement of cylinder in the first guide groove 21.Second regulates the shifting principle and first of cylinder 32 to regulate cylinder identical.
Embodiment 2:
A kind of fibre optic attenuator being easy to regulate as depicted in figs. 1 and 2, in order to the length of the precision and shell that ensure fibre optic attenuator, the present embodiment is optimized on the basis of embodiment 1, and the angle number of degrees namely between the first guide groove 21 and the central shaft of optical fiber 1 are greater than 10 degree and are less than 40 degree.
Embodiment 3:
As depicted in figs. 1 and 2 a kind of is easy to the fibre optic attenuator regulated, and the present embodiment is preferred one group of data on the basis of embodiment 2, and the angle number of degrees namely between the first guide groove 21 and the central shaft of optical fiber 1 are 35 degree.
Embodiment 4:
A kind of fibre optic attenuator being easy to regulate as depicted in figs. 1 and 2, for the ease of regulating cylinder 31 and second to regulate cylinder 32 to regulate to first, the first described adjustment cylinder 31 and the arc surface of the second adjustment cylinder 32 is provided with anti-skidding raised line.Anti-skidding raised line increases hand and first and regulates cylinder 31 and second to regulate friction force between cylinder 32, is convenient to rotate the first adjustment cylinder 31 and the second adjustment cylinder 32.
As mentioned above, the utility model can be realized preferably.
Claims (4)
1. one kind is easy to the fibre optic attenuator of adjustment, comprise shell (2), optical fiber (1) and the bent forming device that optical fiber (1) is bent, it is characterized in that: described shell (2) is provided with the groove for placing optical fiber (1), the lower corrugated surface (24) that the top board (4) being provided with corrugated surface bottom described bent forming device comprises and the corrugated surface being positioned at bottom portion of groove and top board (4) are staggered, two internal groove side walls of described groove are provided with the first guide groove (21) and second guide groove (22) symmetrical with the first guide groove (21), described the first guide groove (21), second guide groove (22) is equal with the angle of the axis of optical fiber (1), the first adjustment cylinder (31) that top board (4) is adjusted is provided with between described the first guide groove (21), the second adjustment cylinder (32) that top board (4) is adjusted is provided with between described the second guide groove (22), the length of described top board (4) is greater than the length of groove and top board (4) is positioned at outside groove two ends is provided with positive stop strip (41), described groove is provided with the rule (23) for showing top board (4) position.
2. a kind of fibre optic attenuator being easy to regulate according to claim 1, is characterized in that: the angle number of degrees between described the first guide groove (21) and the central shaft of optical fiber (1) are greater than 10 degree and are less than 40 degree.
3. a kind of fibre optic attenuator being easy to regulate according to claim 2, is characterized in that: the angle number of degrees between described the first guide groove (21) and the central shaft of optical fiber (1) are 35 degree.
4. according to the arbitrary described a kind of fibre optic attenuator being easy to regulate of claims 1 to 3, it is characterized in that: described first regulates cylinder (31) and second to regulate on the arc surface of cylinder (32) is provided with anti-skidding raised line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490295.0U CN204129260U (en) | 2014-08-28 | 2014-08-28 | A kind of fibre optic attenuator being easy to regulate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490295.0U CN204129260U (en) | 2014-08-28 | 2014-08-28 | A kind of fibre optic attenuator being easy to regulate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129260U true CN204129260U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490295.0U Expired - Fee Related CN204129260U (en) | 2014-08-28 | 2014-08-28 | A kind of fibre optic attenuator being easy to regulate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204129260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181639A (en) * | 2014-08-28 | 2014-12-03 | 成都美美通信技术有限公司 | Easily-adjustable optical fiber attenuator |
-
2014
- 2014-08-28 CN CN201420490295.0U patent/CN204129260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181639A (en) * | 2014-08-28 | 2014-12-03 | 成都美美通信技术有限公司 | Easily-adjustable optical fiber attenuator |
| CN104181639B (en) * | 2014-08-28 | 2017-02-15 | 成都美美通信技术有限公司 | Easily-adjustable optical fiber 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: 20150128 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |