CN204241188U - A kind of macrobending loss test fixture of optical fiber - Google Patents
A kind of macrobending loss test fixture of optical fiber Download PDFInfo
- Publication number
- CN204241188U CN204241188U CN201420685964.XU CN201420685964U CN204241188U CN 204241188 U CN204241188 U CN 204241188U CN 201420685964 U CN201420685964 U CN 201420685964U CN 204241188 U CN204241188 U CN 204241188U
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- optical fiber
- fixed head
- worm screw
- around post
- macrobending loss
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Abstract
The utility model discloses a kind of macrobending loss test fixture of optical fiber, it casing comprising the first fixed head and coordinate with described first fixed head, it is dismountable on described first fixed head that to be provided with for winding optical fiber some around post, described box house is provided with and drives the described drive unit rotated around post, described drive unit comprises worm screw, drive the propulsion system of described worm screw, and the gear that the screw thread on some and described worm screw matches, described worm screw is provided with multistage screw thread, arrange two described gears in every section of described screw thread both sides, namely described worm screw drives the described pinion rotation of two rows, describedly can be set on described gear and with described pinion rotation around post.Winding optical fiber when it is mainly used in measuring fiber macrobending loss, this frock can be wound around simultaneously organize detection fiber, ultrahigh in efficiency more, and can select manually or automatic winding, to improve detection efficiency.
Description
Technical field
The utility model relates to fiber laser arrays field, relates to a kind of macrobending loss test fixture of optical fiber more specifically.
Background technology
Fibre-optical bending can cause the radiation loss of optical fiber, especially when optical fiber is subject to very large bending of radius, when bending radius and core diameter have comparability, its transport property can change, a large amount of guided modeses is converted to radiation mode, no longer continue transmission, but enter the coated layer of covering or covering absorption, thus cause the additional consume of optical fiber.Wherein the radius-of-curvature of macrobending loss optical fiber larger than fibre diameter the bending additional consume caused.
Therefore, carrying out macrobending loss test to optical fiber is an important step in optical fiber manufacturing processes, now conventional optical fiber macrobending loss method of testing is by Optical Fiber Winding on the test wheel shaft of column, carrys out the macrobending loss of detection fiber by contrast fibre-optical bending state with the change of optical characteristics during non-case of bending.
There is following problem in now conventional optical fiber macrobending loss test fixture: 1, general frock can only test an optical fiber, and lower to the efficiency of optical fiber repeatedly pitch of the laps; 2, generally to fiber windings time, in time, turns around around post, because operator's is firmly uneven, each circle optical fiber is uneven around the tightness around post, affects test result.
Utility model content
The utility model solves deficiency of the prior art, provides that a kind of testing efficiency is high, the macrobending loss test fixture of test result optical fiber accurately.
The technical solution of the utility model: a kind of macrobending loss test fixture of optical fiber, it casing comprising the first fixed head and coordinate with described first fixed head, it is dismountable on described first fixed head that to be provided with for winding optical fiber some around post, described box house is provided with and drives the described drive unit rotated around post, described drive unit comprises worm screw, drive the propulsion system of described worm screw, and the gear that the screw thread on some and described worm screw matches, described worm screw is provided with multistage screw thread, arrange two described gears in every section of described screw thread both sides, namely described worm screw drives the described pinion rotation of two rows, describedly can be set on described gear and with described pinion rotation around post.
Preferably, described propulsion system comprise the turning handle being connected to described worm screw one end or the motor being connected to described worm screw one end.
Preferably, also comprise some optical fiber fixtures, the end face of described optical fiber fixture is provided with some grooves, and described optical fiber fixture is dismountable to be fixed on described first fixed head, and described optical fiber fixture is arranged on described around post two ends.
Preferably, described first fixed head is provided with some stopper slots for fixing described optical fiber fixture, is also provided with the perforation of passing around post described in some can making, is located on described gear through described in described perforation around column sleeve.
Preferably, described around post inner hollow, on the described tooth that can be stuck in described gear around post and with described pinion rotation.
Preferably, also comprise the second fixed head, described second fixed head is provided with the support for supporting described worm screw, described second fixed head is also provided with the pillar for supporting described gear.
Preferably, the surrounding on described second fixed head is provided with fixed orifice, described second fixed head and the first fixed head to be fixed together formation body structure by described fixed orifice.
Preferably, the described top around post is provided with the annulus cap for stopping fiber turns.
The beneficial effect that the utility model reaches:
One, the macrobending loss test fixture of optical fiber of the present utility model, winding optical fiber when being mainly used in measuring fiber macrobending loss, this frock can be wound around simultaneously organize detection fiber more, ultrahigh in efficiency, and manual or automatic winding can be selected, improve detection efficiency.
Its two, frock of the present utility model is synchronous winding when being wound around many group optical fiber, and the degree of tightness power of the coil of optical fiber is consistent, greatly reduces the factor affecting test result in Optical Fiber Winding process.
They are three years old, originally be that frock is diligently provided with the optical fiber fixture of optical fiber fixture for fixed fiber the end of a thread in the both sides around post, fiber stub is blocked by the groove on optical fiber fixture, easy-to-use, and in the utility model, optical fiber fixture adopts the flexible materials such as rubber, can not cause damage to the skin of the optical fiber blocked.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model first fixed head.
Fig. 3 is the vertical view of the utility model first fixed head.
Fig. 4 is the vertical view taken away around post and optical fiber fixture of the present utility model.
Fig. 5 is the second fixed head vertical view in embodiment 1 of the present utility model.
Fig. 6 is the second fixed head vertical view in embodiment 2 of the present utility model.
Fig. 7 is of the present utility model around rod structure schematic diagram.
Fig. 8 is the structural representation of optical fiber fixture of the present utility model.
Wherein, 1-first fixed head, 10,26-fixed orifice, 11-stopper slot, 12-bores a hole, 2-casing, 20-second fixed head, 21-worm screw, 22-gear, 22a-tooth, 23-pillar, 24-screw thread, 25-support, 3-turning handle, 3a-motor, 4-around post, 41-annulus cap, 5-optical fiber locating part, 51-groove.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
As shown in Fig. 1,2,3,4,5,7,8, disclose a kind of macrobending loss test fixture of optical fiber in the present embodiment, this frock is used in the Optical Fiber Winding in optical fiber macrobending loss test process.
Specifically, as shown in Figure 1, its casing 2 mainly comprising the first fixed head 1 and coordinate with above-mentioned first fixed head 1, it is dismountable on above-mentioned first fixed head 1 that to be provided with for winding optical fiber some around post 4, above-mentioned casing 1 inside is provided with and drives the above-mentioned drive unit rotated around post 4, above-mentioned drive unit comprises worm screw 21, drive the propulsion system of above-mentioned worm screw 21, and the gear 22 that the screw thread 24 on some and above-mentioned worm screw 21 matches, above-mentioned worm screw 21 is provided with multistage screw thread 24, arrange two said gear 22 in every section of above-mentioned screw thread 24 both sides, namely above-mentioned worm screw 21 drives two row's said gear 22 to rotate, above-mentionedly can be set in said gear 22 around post 4 and to rotate with said gear 22.
In the present embodiment, as shown in Figure 1 and Figure 5, adopt turning handle 3 as propulsion system, turning handle 3 connects one end of above-mentioned worm screw 21.Namely user rotates above-mentioned turning handle 3, and worm screw 21 is rotated, and the multistage screw thread 24 on worm screw 21 can drive two toothrow wheels 22 of its both sides to rotate, and gear driven rotates around post 4, realizes Optical Fiber Winding coil.
In order to reduce the strength of applying, the quantity of said gear group can be increased and decreased according to actual needs, because this frock can be wound around organize detection fiber, ultrahigh in efficiency simultaneously, and manual or automatic winding can be selected more, improving detection efficiency.
The number of turns needed for winding optical fiber to detection, need the end of a thread of optical fiber to fix, to carry out dependence test to bending coil, as illustrated in fig. 1-3, above-mentioned first fixed head 1 arranges some optical fiber fixtures 5, and above-mentioned optical fiber fixture 5 is arranged on the above-mentioned two ends around post 4.As shown in Figure 8, the end face of above-mentioned optical fiber fixture 5 is provided with some grooves 51, is stuck in above-mentioned groove 51 by optical fiber shaven head, and in order to prevent groove from injuring outer fiber epidermis, adopts the flexible materials such as rubber to make optical fiber fixture 5.
In winding process, conveniently use above-mentioned optical fiber fixture 5, in the present embodiment, dismountable mode that adopts above-mentioned optical fiber fixture 5 is fixed on above-mentioned first fixed head 1, therefore, on above-mentioned first fixed head 1 be provided with some fix for fixing above-mentioned optical fiber 5 stopper slot 11, above-mentioned stopper slot 11 is arranged on the above-mentioned both sides around post 4, and above-mentioned first fixed head 11 is also provided with and somely can makes above-mentioned perforation 12 (Fig. 4) of passing around post 4, be set in said gear 22 around post 4 through above-mentioned perforation 12 is above-mentioned.
As shown in Fig. 7 and Fig. 4, above-mentioned around post 4 inner hollow, the above-mentioned tooth 22a that can be stuck in said gear 22 around post rotates with said gear 22.Above-mentioned around post 4 in order to prevent multi-ring fiber to be wound around disengaging, the above-mentioned top around post 4 is provided with annulus cap 41.
As shown in Figure 5, in the present embodiment, drive unit is arranged on the second fixed head 20, and above-mentioned second fixed head 20 is provided with the support 25 for supporting above-mentioned worm screw 21, above-mentioned second fixed head 20 is also provided with the pillar 23 for supporting said gear 22.
In order to the dismounting between more convenient above-mentioned first fixed head 1 and the second fixed head 20 and connection, surrounding on the first fixed head 1 and the second fixed head 20 is equipped with fixed orifice (10,26), above-mentioned second fixed head and the first fixed head to be fixed together formation body structure by above-mentioned fixed orifice (10,26).Above-mentioned drive unit is comprised in above-mentioned casing 2, only spills turning handle 3.
Embodiment 2
It is different that embodiment 2 and the difference of embodiment 1 are to drive the propulsion system of worm screw 21, in embodiment 2 as shown in Figure 6, motor 3a is connected with in one end of worm screw 21, above-mentioned motor 3a drives worm screw 21 to rotate, above-mentioned worm screw 21 drives two toothrow wheels 22 to rotate by multistage screw thread 24 on it, said gear drives respectively rotates around post 4, rotates realize winding optical fiber coil around post 4.
Because the power of motor 3a is comparatively large, many toothrows once can be driven to take turns 22 and rotate, without the need to manpower, it is higher relative to the efficiency in embodiment 1, is adapted to multiple fiber optic coils and is wound around.
Other structure in embodiment 2 is as identical in embodiment 1.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (8)
1. the macrobending loss test fixture of an optical fiber, it casing comprising the first fixed head and coordinate with described first fixed head, it is dismountable on described first fixed head that to be provided with for winding optical fiber some around post, it is characterized in that, described box house is provided with and drives the described drive unit rotated around post, described drive unit comprises worm screw, drive the propulsion system of described worm screw, and the gear that the screw thread on some and described worm screw matches, described worm screw is provided with multistage screw thread, arrange two described gears in every section of described screw thread both sides, namely described worm screw drives the described pinion rotation of two rows, describedly can be set on described gear and with described pinion rotation around post.
2. the macrobending loss test fixture of a kind of optical fiber according to claim 1, is characterized in that, described propulsion system comprise the turning handle being connected to described worm screw one end or the motor being connected to described worm screw one end.
3. the macrobending loss test fixture of a kind of optical fiber according to claim 2, it is characterized in that, also comprise some optical fiber fixtures, the end face of described optical fiber fixture is provided with some grooves, described optical fiber fixture is dismountable to be fixed on described first fixed head, and described optical fiber fixture is arranged on described around post two ends.
4. the macrobending loss test fixture of a kind of optical fiber according to claim 3, it is characterized in that, described first fixed head is provided with some stopper slots for fixing described optical fiber fixture, also be provided with the perforation of passing around post described in some can making, be located on described gear around column sleeve through described in described perforation.
5. the macrobending loss test fixture of a kind of optical fiber according to claim 4, is characterized in that, described around post inner hollow, on the described tooth that can be stuck in described gear around post and with described pinion rotation.
6. the macrobending loss test fixture of a kind of optical fiber according to claim 1, it is characterized in that, also comprise the second fixed head, described second fixed head is provided with the support for supporting described worm screw, described second fixed head is also provided with the pillar for supporting described gear.
7. the macrobending loss test fixture of a kind of optical fiber according to claim 6, is characterized in that, the surrounding on described second fixed head is provided with fixed orifice, described second fixed head and the first fixed head to be fixed together formation body structure by described fixed orifice.
8. the macrobending loss test fixture of a kind of optical fiber according to claim 1, is characterized in that, the described top around post is provided with the annulus cap for stopping fiber turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685964.XU CN204241188U (en) | 2014-11-14 | 2014-11-14 | A kind of macrobending loss test fixture of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420685964.XU CN204241188U (en) | 2014-11-14 | 2014-11-14 | A kind of macrobending loss test fixture of optical fiber |
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| Publication Number | Publication Date |
|---|---|
| CN204241188U true CN204241188U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420685964.XU Expired - Fee Related CN204241188U (en) | 2014-11-14 | 2014-11-14 | A kind of macrobending loss test fixture of optical fiber |
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| CN (1) | CN204241188U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974974A (en) * | 2019-03-26 | 2019-07-05 | 长飞光纤光缆股份有限公司 | A kind of auxiliary for single mode optical fiber test is looped device automatically |
| CN110095259A (en) * | 2018-01-29 | 2019-08-06 | 中天科技光纤有限公司 | A kind of optical fiber macrobending loss test fixture and its test method |
| CN110686868A (en) * | 2019-11-11 | 2020-01-14 | 成都泰瑞通信设备检测有限公司 | Macrobend loss testing device and method for automatic winding and counting of optical fibers |
| WO2020133293A1 (en) * | 2018-12-28 | 2020-07-02 | 中天科技光纤有限公司 | Test fixture, test system, and method of use thereof |
-
2014
- 2014-11-14 CN CN201420685964.XU patent/CN204241188U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095259A (en) * | 2018-01-29 | 2019-08-06 | 中天科技光纤有限公司 | A kind of optical fiber macrobending loss test fixture and its test method |
| WO2020133293A1 (en) * | 2018-12-28 | 2020-07-02 | 中天科技光纤有限公司 | Test fixture, test system, and method of use thereof |
| CN109974974A (en) * | 2019-03-26 | 2019-07-05 | 长飞光纤光缆股份有限公司 | A kind of auxiliary for single mode optical fiber test is looped device automatically |
| CN109974974B (en) * | 2019-03-26 | 2021-09-21 | 长飞光纤光缆股份有限公司 | Auxiliary automatic looping device for single-mode optical fiber testing |
| CN110686868A (en) * | 2019-11-11 | 2020-01-14 | 成都泰瑞通信设备检测有限公司 | Macrobend loss testing device and method for automatic winding and counting of optical fibers |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191114 |