CN213985620U

CN213985620U - OTDR tester

Info

Publication number: CN213985620U
Application number: CN202120077144.2U
Authority: CN
Inventors: 纪曹阳
Original assignee: Jiangsu Rongzheng Communication Technology Co ltd
Current assignee: Jiangsu Rongzheng Communication Technology Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-08-17
Anticipated expiration: 2031-01-12

Abstract

The application relates to an OTDR tester, which comprises a tester main body; the detector body is provided with an SC adapter interface, an FC adapter interface and an optical fiber adapter access part; the optical fiber adapter comprises an SC adapter interface, an FC adapter interface, an optical fiber adapter part and an optical fiber adapter part, wherein the SC adapter interface is used for connecting an optical fiber with an SC connector into a detector body; an optical fiber connecting channel, an optical fiber driving structure and a tail fiber are arranged in the optical fiber adaptive access part; one end of the tail fiber with the connector is connected into the detector main body, and the other end of the tail fiber without the connector is arranged in the optical fiber connecting channel; the optical fiber driving structure is used for feeding the optical fiber without the joint into the optical fiber connecting channel and connecting the optical fiber with the tail fiber. The performance detection method and the performance detection device can be used for detecting the performance of various types of optical fibers with SC joints, FC joints or unconnected joints, improve the universality of the detector, and are beneficial to improving the quality of optical fiber detection and further beneficial to ensuring the quality of the optical fibers.

Description

OTDR tester

Technical Field

The present application relates to the field of optical fibers, and more particularly, to an OTDR tester.

Background

An OTDR tester (Optical Time Domain Reflectometer), an Optical Time Domain Reflectometer, is an instrument used in the field of telecommunications to measure the characteristics of Optical fibers. The OTDR tester is manufactured by utilizing the principle of backward scattering of light and Fresnel reversal; the OTDR tester can obtain attenuation information of the optical fiber by using backscattered light generated when light propagates in the optical fiber, thereby being used for testing loss in the optical fiber, measuring the length of the optical fiber, finding a fault breakpoint, and the like.

Currently, in the related art, the OTDR tester includes a tester body, a flip connected to the tester body, a USB interface, an ethernet interface, an SD card slot, and a detection connector. When the flip cover is closed, the USB interface, the Ethernet interface, the SD card slot, the detection connecting port and the like can be covered, so that the interfaces are protected.

In view of the above-mentioned related arts, the inventor believes that optical fiber connections for various purposes are different connectors; the detection connector is only provided with one connector, and the detection of various types of optical fibers cannot be satisfied. Meanwhile, for the detection of the newly arrived optical cable in a factory, the optical fiber in the optical cable is not connected with any connecting head, so that the OTDR tester in the related technology cannot directly detect the newly arrived optical cable. Therefore, the OTDR tester has a small application range.

SUMMERY OF THE UTILITY MODEL

In order to expand the application range of the OTDR tester, the application provides the OTDR tester.

The OTDR tester provided by the application adopts the following technical scheme:

the OTDR tester comprises a detector main body; the top of the detector body is provided with an SC adapter interface, an FC adapter interface and an optical fiber adapter access part;

the SC adapter interface is used for connecting an optical fiber with an SC joint into the detector body, the FC adapter interface is used for connecting an optical fiber with an FC joint into the detector body, and the optical fiber adapter access part is used for connecting an optical fiber without a joint into the detector body;

the optical fiber adaptive access part is of a cylinder structure, and an optical fiber connecting channel, an optical fiber driving structure and a tail fiber are arranged in the optical fiber adaptive access part; one end of the tail fiber belt connector is connected into the detector main body, and the other end of the tail fiber belt connector is arranged in the optical fiber connecting channel; the optical fiber driving structure is used for feeding the optical fiber without the joint into the optical fiber connecting channel and connecting the optical fiber with the tail fiber.

By adopting the technical scheme, the detector can detect the performance of various optical fibers with SC joints, FC joints or unconnected joints, the application range of the detector is expanded, and the quality of optical fiber detection is improved; the optical fiber which is not connected with the joint is connected with the preset tail fiber to be connected into the detector main body for detection.

Optionally, the optical fiber adaptive access portion is vertically arranged at the top of the detector main body, the bottom of the optical fiber adaptive access portion is connected with the detector main body, and an optical fiber access channel is formed in the top of the optical fiber adaptive access portion;

the optical fiber adaptive access part is internally provided with an installation cavity and an optical fiber connecting channel which are mutually communicated from top to bottom, the installation cavity is also communicated with the optical fiber access channel, and the optical fiber driving structure is arranged in the installation cavity;

the optical fiber access channel and the optical fiber connecting channel are coaxially arranged with the optical fiber adaptive access part, one end, without a connector, of the tail optical fiber is arranged at the bottom of the optical fiber connecting channel, and the end of the tail optical fiber faces upwards.

By adopting the technical scheme, the optical fiber which is not connected with the joint enters the optical fiber adaptive access part through the optical fiber access channel, enters the optical fiber connection channel after passing through the installation cavity and is connected with the tail fiber preset in the optical fiber connection channel.

Optionally, the optical fiber driving structure is a double-roller structure, and includes two rollers arranged in parallel, and a gap capable of clamping the optical fiber and correspondingly matching with both the optical fiber entering channel and the optical fiber connecting channel is formed between the two rollers; when the rollers rotate, the optical fiber clamped between the two rollers can be driven to move forwards, and the optical fiber can enter the optical fiber connecting channel from the optical fiber entering channel through the two rollers;

each two ends of the roller are rotatably connected to the wall of the mounting cavity through a rotating shaft, and the rotating shaft at one end of one roller penetrates out of the wall of the mounting cavity and is connected with the knob.

Through adopting above-mentioned technical scheme, drive the running roller through rotatory knob and rotate, the rotation of running roller can be with the smooth transport income optic fibre that gets into and lie in between two running rollers by optic fibre access channel and connect the passageway and take place to be connected with the tail optical fiber. Compared with a manual direct insertion mode, the roller conveying mode has the advantages that the roller conveying stability is better, the directivity is more accurate, and the optical fiber and the tail fiber can be better connected.

Optionally, the optical fiber adapter access portion further has two observation windows, which correspond to the top port of the optical fiber connection channel and the end of the pigtail where the connector is not disposed.

By adopting the technical scheme, the process of connecting the optical fiber and the tail fiber is conveniently and better monitored, and the process is ensured to be smoothly completed. The observation window corresponding to the top port of the optical fiber connecting channel is used for observing the process of the optical fiber entering the optical fiber connecting channel; an observation window at the end of the pigtail without the stub is used to observe the connection process of the optical fiber and the pigtail.

Optionally, the optical fiber adapter access portion further includes an end cap covering the optical fiber access channel.

By adopting the technical scheme, the pollution of dirt entering the optical fiber adaptive access part to the optical fiber connecting channel and the tail optical fiber is reduced.

Optionally, a protective cover is further disposed on the detector main body; the protective covers are arranged in two numbers and respectively cover the SC adapter interface and the FC adapter interface.

By adopting the technical scheme, the pollution of external pollutants to the SC adapter interface and the FC adapter interface is reduced.

Optionally, two sides of the detector main body are provided with elastic grips.

Through adopting above-mentioned technical scheme, improved frictional force and held the comfort level, the operating personnel of being convenient for holds the detector.

Optionally, a support is arranged on the back of the detector main body, and the support is of a rectangular rod-shaped structure; the support is vertically arranged, and the top of the support is pivotally connected with the back of the detector main body.

Through adopting above-mentioned technical scheme, the support is favorable to propping up the detector main part, the use and the operation of the operating personnel of being convenient for.

Optionally, the back of the detector main body is further provided with two suckers, and the suckers are symmetrically arranged around the support.

Through adopting above-mentioned technical scheme, when the operation, the accessible sucking disc is inhaled this detector on vertical face or inclined plane to can not grip the detector always, can vacate the hand and carry out other operations, improve the convenience of operation.

Optionally, the back of the detector main body is further provided with an alcohol cotton box and a sundry collecting box which are respectively located below the two suckers.

Through adopting above-mentioned technical scheme, collect the box integration on this detector with alcohol cotton box and debris, reduced the quantity that carries the accessory, reduced the possibility of forgetting the accessory, improved the quality that optical fiber detected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the performance detection method and the performance detection device can be used for detecting the performance of various types of optical fibers with SC joints, FC joints or unconnected joints, improve the universality of the detector, and are beneficial to improving the quality of optical fiber detection and further beneficial to ensuring the quality of the optical fibers.

2. The utility model provides an optic fibre drive structure sets up to pair roller structure, is favorable to more stationarity and accurately carries optic fibre to the fiber connection passageway and is connected with the tail optical fiber, makes optic fibre and tail optical fiber's linkage effect better, has improved the quality of optical fiber detection.

3. This application is through the setting of observation window, can monitor the process that optic fibre and tail optical fiber meet better, guarantees the smooth completion of this process.

Drawings

Fig. 1 is a schematic perspective view of an OTDR tester according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a fiber optic mating access portion (without an end cap) according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of an optical fiber adapter access portion of an embodiment of the present application rotated 90 ° (without an end cap).

Fig. 4 is a schematic perspective view of another angle of the OTDR tester according to the embodiment of the present application.

Description of reference numerals: 1. a detector main body; 2. an SC adaptation interface; 3. an FC adaptation interface; 4. an optical fiber adapter access portion; 41. an optical fiber connection channel; 42. an optical fiber drive structure; 421. a roller; 43. tail fiber; 44. an optical fiber entering the channel; 45. a mounting cavity; 46. a knob; 47. an observation window; 48. an end cap; 5. a protective cover; 6. an elastic grip; 7. a support; 8. a suction cup; 9. alcohol cotton box; 10. and a sundries collecting box.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an OTDR tester. Referring to fig. 1, the OTDR tester includes a meter body 1. The detector main body 1 is used for testing loss in optical fibers, measuring the length of the optical fibers, searching fault breakpoints and the like, and the front side of the detector main body 1 is provided with a display screen and an operating button.

Referring to FIG. 1, a plurality of different types of adapter access structures are provided on the top of the detector body 1, including an SC adapter interface 2 for accessing an optical fiber with an SC connector into the detector body 1, an FC adapter interface 3 for accessing an optical fiber with an FC connector into the detector body 1, and an optical fiber adapter access portion 4 for accessing an optical fiber without a connector into the detector body 1. The arrangement of various adaptive access structures can ensure that the tester is suitable for detecting more types of optical fibers, not only can directly test the optical fibers with SC joints and the optical fibers with FC joints without temporarily replacing adaptive heads, but also is suitable for testing the optical cables which are just arrived (specifically, the sheath of the optical cable is stripped, the optical fibers in the optical cable are taken out, protective layers and other protective structures are removed, and the optical cables are accessed into the optical fiber adaptive access part 4 for testing, so that the quality of the optical cable can be judged); thereby the commonality of this detector has been improved.

Referring to fig. 1, the main body of the optical fiber adaptive access portion 4 is a rectangular cylinder structure, which is vertically disposed at the top of the detector main body 1, and the bottom of the optical fiber adaptive access portion 4 is fixedly connected to the detector main body 1.

Referring to fig. 2, the optical fiber adapter 4 has a mounting cavity 45 and an optical fiber connecting channel 41 from top to bottom, which are communicated with each other. Meanwhile, the top of the optical fiber adapting and connecting part 4 is provided with an optical fiber entering channel 44 which enables the installation cavity 45 to be communicated with the outside. The optical fiber connecting channel 41 and the optical fiber entering channel 44 are cylindrical long holes only allowing optical fibers to pass through, both extend along the vertical direction, and both are coaxially arranged with the main body of the optical fiber adapting access part 4.

Referring to fig. 2, a pigtail 43 is disposed in the fiber optic connection channel 41. The pigtail 43 is close to one side of the bottom of the optical fiber connection channel 41, one end of the pigtail 43 not provided with the connector (i.e. the end with the broken fiber core, with the protective layer removed) faces upward, and one end with the connector (in this embodiment, an SC connector) penetrates out from the bottom of the optical fiber connection channel 41 and is connected to the detector main body 1 (specifically, an SC adapter is further provided on the detector main body 1, and the SC connector of the pigtail 43 is in butt joint with the SC adapter).

Referring to fig. 2 and 3, the fiber drive structure 42 is mounted within the mounting cavity 45. Specifically, the optical fiber driving structure 42 is a pair roller structure, and includes two rollers 421 disposed in parallel, and the two rollers 421 are disposed in a horizontal manner. The both ends of one of them running roller 421 are connected with the pivot that the periphery cover was equipped with the bearing respectively, and the pivot is inserted respectively in the blind hole that the relative both sides chamber wall of installation cavity 45 set up, realizes that this running roller 421 can rotationally install in installation cavity 45. Meanwhile, two ends of the other roller 421 are also respectively connected with a rotating shaft with a bearing sleeved on the periphery, the rotating shaft at one end is inserted into a blind hole arranged on the wall of the mounting cavity 45, and the rotating shaft at the other end is inserted into a through hole arranged on the wall of the mounting cavity 45; the free end of the shaft extends through the wall of the cavity 45 and is connected to a knob 46 located outside the fiber-optic adapter 4. So that the roller 421 can be driven to rotate by rotating the knob 46.

Referring to fig. 2 and 3, a gap for clamping the optical fiber is formed between the rollers 421. When the knob 46 is used to rotate the roller 421 connected to the knob 46, the roller 421 can drive the optical fiber clamped between the two rollers 421 to move forward under the action of friction force, and the optical fiber drives the other roller 421 to rotate. Meanwhile, the gap between the two rollers 421 is correspondingly matched with the optical fiber entering channel 44 and the optical fiber connecting channel 41 in position, so that the optical fiber without a joint enters the installation cavity 45 from the optical fiber entering channel 44 and then comes to the gap between the two rollers 421 to be clamped by the two rollers 421; the roller 421 rotates to drive the optical fiber to move forward and enter the optical fiber connecting channel 41; the roller 421 then continues to drive the fiber and the fiber eventually contacts the pigtail 43. In this process, the fiber is always kept straight without bending. Adopt running roller 421 to carry optical fiber, compare in direct manual insertion's mode, can make the transport more steady, lead to optical fiber can't correctly meet with tail-fiber 43 or lead to optical fiber to take place to buckle the appearance of problem because the inequality of application of force dynamics and the deviation of application of force direction when having reduced the manual work and inserted, improved optical fiber detection's quality.

Referring to fig. 1 and 3, in order to better monitor the operation process of the optical fiber entering the optical fiber adapter access part 4 and connecting with the tail fiber 43, the process is ensured to be successfully completed. The optical fiber adapter 4 is provided with two observation windows 47, which are respectively located at the top port of the optical fiber connection channel 41 (i.e. the junction of the installation cavity 45 and the optical fiber connection channel 41) and the end of the pigtail 43 where no connector is provided. The former is for monitoring the process of correctly entering the optical fiber into the optical fiber connection passage 41, and the latter is for monitoring the process of connecting the optical fiber with the pigtail 43.

Referring to fig. 1, to reduce contaminants entering the fiber connecting channel 41 and the mounting cavity 45, and thus contaminating the pigtail 43, the fiber adapter 4 further includes an end cap 48 that covers the fiber access channel 44. One side of the end cover 48 is pivotally connected to the top of the detector main body 1; when closed, the end cap 48 may be placed over the fiber optic adapter insert 4 to cover and close the fiber access channel 44.

Referring to fig. 1, two protective covers 5 are provided on the top of the meter body 1. The two protective covers 5 correspond to the SC adapter interfaces 2 and the FC adapter interfaces 3 one to one. One side of each protective cover 5 is connected to the side surface of the SC adapter interface 2 or the FC adapter interface 3 through a plastic connecting strip; when the cover is closed, the protective cover 5 can cover the corresponding SC adapter interface 2 or FC adapter interface 3, so that the SC adapter interface 2 and the FC adapter interface 3 are protected, and the adverse effect of dirt on the two interfaces is reduced.

In addition, the top of the detector main body 1 is also provided with a conventional USB interface, an Ethernet interface, an SD card slot and other structures, so that data transmission of the detector is facilitated.

Referring to fig. 1, the two side edges of the detector main body 1 are provided with the elastic grips 6, so that the friction force and the holding comfort are increased, and the detector is more beneficial to being held by an operator. The resilient grip 6 is made of rubber or other conventional resilient material.

Referring to FIG. 4, a bracket 7 is provided on the vertical center line of the back of the monitor body 1. The bracket 7 is of a rectangular rod-shaped structure and is vertically arranged. The top of the bracket 7 is pivotally connected with the back of the detector main body 1 through a rotating shaft which is horizontally arranged. When the detector is used, the bracket 7 can be unfolded to support the detector main body 1 to be placed on the operating platform; thereby being more beneficial to the operator to operate the detector.

Referring to fig. 4, the back of the monitor main body 1 is also provided with a suction cup 8. Specifically, the method comprises the following steps. The two suckers 8 are respectively positioned at the upper left corner and the upper right corner of the back surface of the detector main body 1. The two suction cups 8 are arranged symmetrically with respect to the support 7. The setting of sucking disc 8 can be when the operation, inhales this detector on vertical face or inclined plane to can not hold the detector always, can vacate the hand and carry out other operations.

Referring to fig. 4, the back of the detector main body 1 is also provided with an alcohol cotton box 9 and a sundries collecting box 10 respectively, wherein the alcohol cotton box 9 is positioned at the lower right corner of the back of the detector main body 1; the sundries collecting box 10 is positioned at the lower left corner of the back surface of the detector main body 1. In order to ensure the detection accuracy, the optical fiber needs to be cleaned by alcohol cotton before detection, so that an extra alcohol cotton storage tank and a garbage bag are needed. The design of the alcohol cotton box 9 and the sundries collecting box 10 integrates the alcohol cotton box and the sundries collecting box on the detector, reduces the number of carried accessories, reduces the possibility of forgetting the accessories, and improves the quality of optical fiber detection.

The implementation principle of the OTDR tester in the embodiment of the application is as follows: when the optical fiber to be detected is provided with an SC connector or an FC connector, the protective cover 5 corresponding to the interface is opened, and after the connector is cleaned by alcohol cotton, the connector is directly connected with the interface for testing. When the fiber to be tested is not provided with a connector, the fiber is cleaned with alcohol cotton and the end cap 48 is opened. The optical fiber is inserted into the optical fiber entering channel 44, when the optical fiber reaches the gap between the two rollers 421 and is clamped by the two rollers 421, the knob 46 is rotated to rotate the rollers 421 to drive the optical fiber to move forward, and finally the optical fiber is connected with the pigtail 43 in the optical fiber connecting channel 41 (whether the optical fiber is connected with the pigtail 43 can be judged by observing the detection result of the detector main body 1 and the observation window 47), and then the test is carried out.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

An OTDR tester, characterized in that: comprises a detector main body (1); the top of the detector body (1) is provided with an SC adapter interface (2), an FC adapter interface (3) and an optical fiber adapter access part (4);

the SC adapter interface (2) is used for an optical fiber access detector body (1) with an SC joint, the FC adapter interface (3) is used for an optical fiber access detector body (1) with an FC joint, and the optical fiber adapter access part (4) is used for an optical fiber access detector body (1) without a joint;

the optical fiber adaptive access part (4) is of a cylindrical structure, and an optical fiber connecting channel (41), an optical fiber driving structure (42) and a tail optical fiber (43) are arranged in the optical fiber adaptive access part (4); one end of the tail fiber (43) with the connector is connected into the detector main body (1), and one end of the tail fiber (43) without the connector is arranged in the optical fiber connecting channel (41); the optical fiber driving structure (42) is used for feeding the optical fiber without joint into the optical fiber connecting channel (41) and connecting with the tail optical fiber (43).
2. An OTDR tester according to claim 1, characterized in that: the optical fiber adaptive access part (4) is vertically arranged at the top of the detector main body (1), the bottom of the optical fiber adaptive access part (4) is connected with the detector main body (1), and an optical fiber access channel (44) is formed in the top of the optical fiber adaptive access part (4);

the optical fiber adaptive access part (4) is internally provided with an installation cavity (45) and an optical fiber connecting channel (41) which are communicated with each other from top to bottom, the installation cavity (45) is also communicated with an optical fiber entering channel (44), and the optical fiber driving structure (42) is installed in the installation cavity (45);

the optical fiber access channel (44) and the optical fiber connecting channel (41) are coaxially arranged with the optical fiber adaptive access part (4), one end, without a connector, of the tail optical fiber (43) is arranged at the bottom of the optical fiber connecting channel (41), and the end of the tail optical fiber faces upwards.
3. An OTDR tester according to claim 2, characterized in that: the optical fiber driving structure (42) is a double-roller structure and comprises two rollers (421) which are arranged in parallel, and a gap which can clamp an optical fiber and is correspondingly matched with the optical fiber entering channel (44) and the optical fiber connecting channel (41) is arranged between the two rollers (421); when the rollers (421) rotate, the optical fiber clamped between the two rollers (421) can be driven to move forwards, and the optical fiber can enter the optical fiber connecting channel (41) from the optical fiber entering channel (44) through the driving of the two rollers (421);

both ends of each roller (421) are rotatably connected to the wall of the mounting cavity (45) through a rotating shaft, and the rotating shaft at one end of one roller (421) penetrates out of the wall of the mounting cavity (45) and is connected with the knob (46).
4. An OTDR tester according to claim 2, characterized in that: the optical fiber adaptive access part (4) is also provided with two observation windows (47) which respectively correspond to the top port of the optical fiber connecting channel (41) and the end part of the tail optical fiber (43) without a connector.
5. An OTDR tester according to claim 2, characterized in that: the optical fiber adapting access part (4) also comprises an end cover (48) which can cover the optical fiber access channel (44).
6. An OTDR tester according to any of claims 1-5, characterized in that: the detector main body (1) is also provided with a protective cover (5); the two protective covers (5) are respectively covered on the SC adapter interface (2) and the FC adapter interface (3).
7. An OTDR tester according to any of claims 1-5, characterized in that: two sides of the detector main body (1) are provided with elastic grips (6).
8. An OTDR tester according to any of claims 1-5, characterized in that: the back of the detector main body (1) is provided with a bracket (7) which is of a rectangular rod-shaped structure; the support (7) is vertically arranged, and the top of the support is pivotally connected with the back of the detector main body (1).
9. An OTDR tester according to claim 8, characterized in that: the back of the detector main body (1) is also provided with two suckers (8) which are symmetrically arranged relative to the bracket (7).
10. An OTDR tester according to claim 9, characterized in that: the back of the detector main body (1) is also provided with an alcohol cotton box (9) and a sundries collecting box (10) which are respectively positioned below the two suckers (8).