CN212432485U - Test fine insertion return loss test fixture - Google Patents
Test fine insertion return loss test fixture Download PDFInfo
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- CN212432485U CN212432485U CN202021409189.7U CN202021409189U CN212432485U CN 212432485 U CN212432485 U CN 212432485U CN 202021409189 U CN202021409189 U CN 202021409189U CN 212432485 U CN212432485 U CN 212432485U
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Abstract
The utility model discloses a test fiber insertion return loss test tool, which comprises a mounting seat and a pressing structure, wherein the mounting seat is provided with a detection surface which defines a test area for butting of a tested connector ferrule and a ferrule of a connecting instrument; the pressing structure comprises a pressing part and a driving part, wherein the pressing part is close to and far away from the first direction of the test area and movably arranged on the mounting seat so as to have a pressing state close to the test area and a yielding state far away from the test area, and the driving part is connected with the pressing part. The technical scheme of the utility model in, suppress the lock pin by test connector lock pin and connection instrument through drive division drive suppression portion to make by the lock pin counterpoint back of test connector lock pin and connection instrument, can not take place the dislocation phenomenon.
Description
Technical Field
The utility model relates to an optical fiber communication technical field, in particular to test fine insertion return loss test fixture.
Background
After the optical fiber product is produced, the insertion return loss test needs to be carried out on the product, the precision requirement on the insertion return loss test is high, the product has slight deviation from a return loss measuring head, the fluctuation of product test data is large, and the product test data is large in size from the productResulting in inaccuracies in the measurement data. In the prior art to
The insertion core is subjected to return loss test, usually, the ceramic sleeve connects the insertion core of the tested connector and the insertion core of the connecting instrument together, then the 2 insertion cores in the ceramic sleeve are repeatedly rotated, the minimum value on the instrument is observed, and through the operation, the insertion core of the tested connector and the insertion core of the connecting instrument are easily dislocated, so that the accuracy of the measuring result is influenced.
Disclosure of Invention
The utility model aims at providing a test fibre inserts return loss test fixture, the problem of easy production dislocation when aiming at traditional ceramic muffjoint by test connector lock pin and the lock pin of connecting instrument.
In order to achieve the above object, the utility model provides a test fine insertion return loss test fixture, include:
the mounting seat is provided with a detection surface, and the detection surface defines a test area for butting the tested connector ferrule and the ferrule of the connecting instrument; and the number of the first and second groups,
the pressing structure comprises a pressing part and a driving part, wherein the pressing part is close to and far away from the first direction of the test area and movably arranged on the mounting seat so as to have a pressing state close to the test area and a yielding state far away from the test area, and the driving part is connected with the pressing part.
Preferably, the test region comprises a first region for placement of a tested connector ferrule and a second region for placement of a ferrule of a connecting instrument;
the driving part comprises a first driving part and a second driving part which are arranged corresponding to the first area and the second area.
Preferably, the driving part further comprises a connecting plate arranged on one side of the pressing part, which faces away from the test area, and a threaded hole is formed in the connecting plate corresponding to the first area along the first direction;
the first driving part comprises an adjusting screw rod, and the adjusting screw rod is in threaded fit with the threaded hole, extends out of the threaded hole and is kept in abutting joint with the pressing part.
Preferably, the second driving part includes a pressing block provided between the pressing part and the connecting plate.
Preferably, the second driving part further comprises an elastic member disposed between the pressing block and the connecting plate.
Preferably, one side of the pressing block facing the connecting plate is formed with a limiting groove;
the elastic piece is accommodated in the limiting groove, and at least part of the elastic piece protrudes out of the limiting groove.
Preferably, the mounting seat is concavely provided with a groove on the testing surface, and the testing area is formed in the groove;
the pressing part is arranged to be a pressing plate, two opposite sides of the pressing plate are connected to two opposite side walls of the groove respectively to cover the groove, and the pressing plate and the test area are arranged at intervals.
Preferably, the mounting seat is provided with a guide groove in the groove in a concave manner, and the guide groove is used for movably mounting the pressing block;
the pressing part is suitable for the guide groove to be arranged in an inwards concave mode.
Preferably, a through groove penetrates through the test surface of the mounting seat, and two opposite ends of the through groove are used for inserting the tested connector ferrule and the ferrule of the connecting instrument respectively;
the position of the through groove forms the test area.
Preferably, the connecting plate is fixed to the mounting seat through a screw connector;
the screw connector is provided with a plurality of screw connectors at intervals along the circumferential direction of the mounting seat.
The technical scheme of the utility model in, suppress the lock pin by test connector lock pin and connection instrument through drive division drive suppression portion to make by the lock pin counterpoint back of test connector lock pin and connection instrument, can not take place the dislocation phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded view of an embodiment of the testing fixture for testing fiber insertion and return loss provided by the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
After the optic fibre product is produced, need carry out and insert return loss test to the product, and insert the required precision height of return loss test, this just leads to the product to have the deviation slightly with the return loss measuring head, all can lead to product test data's volatility big to lead to measured data's inaccurate. In the prior art to
The insertion core is subjected to return loss test, usually, the ceramic sleeve connects the insertion core of the tested connector and the insertion core of the connecting instrument together, then the 2 insertion cores in the ceramic sleeve are repeatedly rotated, the minimum value on the instrument is observed, and through the operation, the insertion core of the tested connector and the insertion core of the connecting instrument are easily dislocated, so that the accuracy of the measuring result is influenced.
In view of this, the utility model provides a test fiber inserts return and decreases test fixture, fig. 1 is the utility model provides a test fiber inserts return and decreases test fixture's an embodiment, please refer to fig. 1, test fiber inserts return and decreases test fixture 100 includes mount pad 10 and suppression structure 20, mount pad 10 has detection face 11, detection face 11 prescribes a limit to be used for by test connector lock pin, the test region 12 of the lock pin butt joint of connecting instrument, specifically, detection face 11 can be any one surface on the mount pad. The pressing structure 20 includes a pressing portion 21 and a driving portion 22, the pressing portion 21 is movably disposed on the mounting base 10 in a first direction close to and away from the testing area 12 to have a pressing state close to the testing area 12 and a yielding state away from the testing area 12, the driving portion 22 is connected to the pressing portion 21, specifically, the first direction is a direction in which an angle with a plane where the testing area 12 is located is greater than 0 degree and less than 180 degrees, in order to achieve a best pressing effect, in this embodiment, the first direction is preferably a direction perpendicular to the testing area 12, and also refers to an up-down direction of the mounting base 10 in fig. 1.
In this embodiment, the driving portion drives the pressing portion to press the tested connector ferrule and the ferrule of the connection instrument, so that the tested connector ferrule and the ferrule of the connection instrument are aligned without dislocation.
Further, in order to improve the pressing effect, the test area 12 comprises a first area for placing the tested connector ferrule and a second area for placing the ferrule of the connecting instrument; the driving part 22 includes a first driving part 221 and a second driving part 222 which are arranged corresponding to the first region and the second region, and the first region, the second region, the first driving part 221 and the second driving part 222 are arranged to respectively press the tested connector ferrule and the ferrule of the connection instrument, so that the pressing effect is improved.
The driving portion 22 further includes a connecting plate 223 disposed on a side of the pressing portion 21 opposite to the testing area 12, and a threaded hole 2231 is formed through the connecting plate 223 corresponding to the first area along the first direction; the first driving unit 221 includes an adjusting screw 2211, the adjusting screw 2211 is engaged with the screw hole 2231, and extends out of the screw hole 2231 to be in contact with the pressing unit 21, the pressing unit 21 is pressed by the adjusting screw 2211, the amount of pressure can be adjusted by adjusting the extension amount of the adjusting screw 2211, and the extension amount of the adjusting screw 2211 can be adjusted to press the ferrule of the connection device to prevent the ferrule from rotating during testing.
The second driving part 222 includes a pressing block 2221 disposed between the pressing part 21 and the connecting plate 223, and the pressing part 21 is driven by the pressing block 2221, so that the contact area can be increased, and the driving effect can be improved. Further, the second driving part 222 further includes an elastic member 2222 disposed between the pressing block 2221 and the connecting plate 223, and by disposing the elastic member 2222 between the pressing block 2221 and the connecting plate 223, after the tested connector ferrule is inserted into the testing region 12, the pressing block 2221 can automatically lock the ferrule, thereby further ensuring that the tested connector ferrule and the ferrule of the connecting instrument are concentric.
In order to prevent the elastic member 2222 from falling off, a limit groove 22211 is formed at a side of the pressing piece 2221 facing the connection plate 223; the elastic element 2222 is accommodated in the limiting groove 22211, and at least a portion of the elastic element is protruded from the limiting groove 22211, so that the elastic element 2222 can be effectively prevented from falling off by the arrangement of the limiting groove 22211.
In addition, in order to further improve the pressing effect, the mounting seat 10 is concavely provided with a groove 13 on the testing surface 11, and the testing area 12 is formed in the groove 13; the pressing portion 21 is provided as a pressing plate 211, two opposite sides of the pressing plate 211 are respectively connected to two opposite side walls of the groove 13 to cover the groove 13, and the pressing plate 211 and the test area 12 are arranged at intervals. The pressing plate 211 may be in the form of a spring sheet or an elastic medium, such as rubber, foam, etc., may be filled between the pressing plate 211 and the groove 13. The pressing plate 211 is adopted for pressing, so that the contact surface between the tested connector ferrule and the ferrule of the connecting instrument can be enlarged, and the uniform stress of the ferrule is ensured. In addition, the groove 13 is matched with the pressure plate 211, so that the problem that the pressure is too small due to too large force application surface can be prevented.
Further, in order to prevent the pressing block 2221 from moving in a non-predetermined direction, the mounting base 10 is provided with a guide groove 131 recessed in the groove, and the guide groove 131 is used for movably mounting the pressing block 2221; the pressing portion 21 is adapted to be concave in the guide groove 131.
Further, the testing area 12 may be any shape, in order to facilitate the insertion of the tested connector ferrule and the ferrule of the connection instrument, a through groove 12a is disposed on the testing surface 11 of the mounting base 10, opposite ends of the through groove 12a are used for respectively inserting the tested connector ferrule and the ferrule of the connection instrument, and the through groove 12a is located to form the testing area 12.
In order to facilitate the disassembly and assembly of the pressing structure 10, the connecting plate 223 is fixed on the mounting seat through a screw; the screw connectors are arranged in a plurality of circumferential intervals along the installation seat, the screw connectors can further achieve the installation effect, the connecting plate 223 is prevented from falling off from the installation seat 10, and the pressure of the driving portion 22 on the pressing portion 21 can be adjusted by adjusting the distance between the connecting plate 223 and the installation seat 10.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a test fibre inserts return loss test fixture which characterized in that, test fibre inserts return loss test fixture includes:
the mounting seat is provided with a detection surface, and the detection surface defines a test area for butting the tested connector ferrule and the ferrule of the connecting instrument; and the number of the first and second groups,
the pressing structure comprises a pressing part and a driving part, wherein the pressing part is close to and far away from the first direction of the test area and movably arranged on the mounting seat so as to have a pressing state close to the test area and a yielding state far away from the test area, and the driving part is connected with the pressing part.
2. The test fiber insertion and return loss test tool according to claim 1, wherein the test area comprises a first area for placing a tested connector ferrule and a second area for placing a ferrule of a connecting instrument;
the driving part comprises a first driving part and a second driving part which are arranged corresponding to the first area and the second area.
3. The test fiber insertion and return loss test tool according to claim 2, wherein the driving portion further comprises a connecting plate arranged on one side of the pressing portion, which faces away from the test area, and a threaded hole is formed in the connecting plate corresponding to the first area in the first direction;
the first driving part comprises an adjusting screw rod, and the adjusting screw rod is in threaded fit with the threaded hole, extends out of the threaded hole and is kept in abutting joint with the pressing part.
4. The test fiber insertion and return loss test tool according to claim 3, wherein the second driving portion comprises a pressing block arranged between the pressing portion and the connecting plate.
5. The test fiber insertion and return loss test tool according to claim 4, wherein the second driving portion further comprises an elastic member arranged between the pressing block and the connecting plate.
6. The test fiber insertion and return loss test tool according to claim 5, wherein a limiting groove is formed in one side, facing the connecting plate, of the pressing block;
the elastic piece is accommodated in the limiting groove, and at least part of the elastic piece protrudes out of the limiting groove.
7. The test fiber insertion and return loss test tool according to claim 6, wherein a groove is concavely formed in the test surface of the mounting seat, and the test area is formed in the groove;
the pressing part is arranged to be a pressing plate, two opposite sides of the pressing plate are connected to two opposite side walls of the groove respectively to cover the groove, and the pressing plate and the test area are arranged at intervals.
8. The test fiber insertion and return loss test tool according to claim 7, wherein a guide groove is concavely formed in the groove of the mounting seat, and the guide groove is used for movably mounting the pressing block;
the pressing part is suitable for the guide groove to be arranged in an inwards concave mode.
9. The test fiber insertion and return loss test tool according to claim 1, wherein a through groove penetrates through the test surface of the mounting seat, and opposite ends of the through groove are used for inserting the tested connector ferrule and the ferrule of the connecting instrument respectively;
the position of the through groove forms the test area.
10. The test fiber insertion and return loss test tool according to claim 3, wherein the connecting plate is fixed to the mounting base through a screw;
the screw connector is provided with a plurality of screw connectors at intervals along the circumferential direction of the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409189.7U CN212432485U (en) | 2020-07-16 | 2020-07-16 | Test fine insertion return loss test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409189.7U CN212432485U (en) | 2020-07-16 | 2020-07-16 | Test fine insertion return loss test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212432485U true CN212432485U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021409189.7U Active CN212432485U (en) | 2020-07-16 | 2020-07-16 | Test fine insertion return loss test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212432485U (en) |
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2020
- 2020-07-16 CN CN202021409189.7U patent/CN212432485U/en active Active
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