CN111323206A - Optical fiber flange plate connecting structure and mounting method thereof - Google Patents
Optical fiber flange plate connecting structure and mounting method thereof Download PDFInfo
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- CN111323206A CN111323206A CN202010161105.0A CN202010161105A CN111323206A CN 111323206 A CN111323206 A CN 111323206A CN 202010161105 A CN202010161105 A CN 202010161105A CN 111323206 A CN111323206 A CN 111323206A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 89
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000253 optical time-domain reflectometry Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
- G01M11/3154—Details of the opto-mechanical connection, e.g. connector or repeater
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides an optical fiber flange plate connecting structure, which comprises: the test device comprises an integrated component, a rotary telescopic component, a connecting groove component and a protrusion test column; the integrated component is used for integrating the optical fiber flange plate; a first optical fiber transmission cavity is formed in the optical fiber flange plate along the axial direction; the rotary telescopic component is used for adjusting the height and the angle of the integrated component; the connecting groove component is used for accommodating the optical fiber flange plate, and one component accommodating the optical fiber flange plate in the connecting groove component is an interface groove; a convex test column is arranged in the interface groove; a second optical fiber transmission cavity communicated with the optical time domain reflectometer is arranged in the protruding test column; the second fiber transmission cavity and the first fiber transmission cavity have the same diameter. The invention can realize the test of different types of tail fibers by replacing different optical fiber flange plates, and has the advantages of simple structure and difficult loss. The invention also provides an installation method of the optical fiber flange plate connection structure.
Description
Technical Field
The invention belongs to the technology of optical fiber flange plates, and particularly relates to an optical fiber flange plate connecting structure and an installation method thereof.
Background
When the optical cable is tested by using the OTDR of the optical time domain reflectometer, firstly, the tail fiber is connected with an OTDR optical output port through an optical fiber flange plate, a power switch is pressed, after a clear menu picture appears on a liquid crystal display screen, a function key is pressed, parameters such as an OTDR distance, a refractive index, an average time, a pulse width, a wavelength and the like are set, and finally, a laser emission button is pressed, so that optical pulses generated by the OTDR are emitted to a circuit through the tail fiber. The OTDR analyzes the information fed back by the back scattering light at different positions of the optical fiber to form a certain waveform on the liquid crystal display screen, and displays parameters such as the length of the optical cable, the position of a breakpoint, the position of a joint, an attenuation coefficient, link loss and the like. That is, when an optical fiber cable is tested by using an optical time domain reflectometer OTDR, a corresponding optical fiber flange plate needs to be configured according to an optical fiber joint in a pigtail.
However, in the prior art, the optical fiber connectors mainly include four major types, namely, SC connectors, FC connectors, LC connectors, and ST connectors. Therefore, when the optical cable is tested by using the optical time domain reflectometer OTDR, different optical fiber flanges need to be equipped to meet the connection requirements of different pigtails. Therefore, on the premise of configuring different types of optical fiber flanges, the defects of inconvenient storage and easy loss are inevitably caused.
Disclosure of Invention
The invention aims to provide an optical fiber flange plate connecting structure and an installation method thereof, which can realize the test of different types of tail fibers by replacing different optical fiber flange plates and have the advantages of simple structure and difficult loss. In order to achieve the purpose, the invention adopts the following technical scheme:
a fiber flange attachment structure comprising:
the integrated component is used for integrating the optical fiber flange plates and comprises at least 2 optical fiber flange plates of different types and a support column which is arranged corresponding to each optical fiber flange plate;
the optical fiber flange plate is sleeved with and in threaded connection with a limiting ring; a first optical fiber transmission cavity is formed in the optical fiber flange plate along the axial direction; the optical fiber flange plates are respectively fixed with one end of the support; the struts are positioned on the same horizontal plane and distributed along the circumference;
the rotary telescopic member is used for adjusting the height and the angle of the integrated member, and the inner section of the rotary telescopic member is connected with the other end of the strut; the outer section of the rotary telescopic member is fixed on a test panel of the optical time domain reflectometer;
the connecting groove component is used for accommodating the optical fiber flange plate, the support column and the rotary telescopic component, and is arranged on the test panel of the optical time domain reflectometer;
in the connecting groove component, one component for accommodating the optical fiber flange plate is an interface groove; a protruding test column is arranged in the interface groove; an external thread is formed on the protruding test column; a second optical fiber transmission cavity communicated with the optical time domain reflectometer is arranged in the protruding test column; the diameters of the second optical fiber transmission cavity and the first optical fiber transmission cavity are the same;
in a first installation state, the optical fiber flange plate is pulled, the rotary telescopic member extends, the optical fiber flange plate and the support are separated from the connecting groove member, and the rotary telescopic member is rotated; one of the optical fiber flanges rotates to the interface slot;
in a second installation state, the rotary telescopic component automatically returns, and the second optical fiber transmission cavity is aligned with the first optical fiber transmission cavity;
and in a third installation state, the limiting ring is rotated and is simultaneously in threaded connection with the optical fiber flange plate and the protruding test column.
Preferably, a test cavity matched with the protruding test column is formed in the inner end face of the optical fiber flange plate; the test cavity is sleeved with the limiting ring and is in threaded connection with the limiting ring; a limit needle is arranged in the test cavity; the outer end face of the protruding test column is provided with a limiting hole; after the second optical fiber transmission cavity is aligned with the first optical fiber transmission cavity, the protruding test column is clamped into the test cavity, and the limiting needle extends into the limiting hole.
Preferably, the protruding test column comprises an unthreaded section matched with the test cavity and a threaded section matched with the limit ring; the threaded section has a diameter greater than a diameter of the unthreaded section.
Preferably, the device further comprises an outer barrel; the limiting ring is provided with an external thread;
the outer cylinder is sleeved on the limiting ring and is in threaded connection with the limiting ring; the two ends of the outer cylinder are communicated; the optical fiber flange plate is positioned in the outer barrel; the outer barrel is detachably connected with the optical fiber flange plate; the outer section of the optical fiber flange plate extends out of the outer cylinder;
the outer barrel comprises a first end face and a second end face; the first end face is close to the outer section of the optical fiber flange plate and embedded on the optical fiber flange plate; the second end face is far away from the outer section of the optical fiber flange plate, and the part of the outer cylinder, which is close to the second end face, is provided with internal threads and is in threaded connection with the limiting ring;
the outer barrel is rotated, the outer barrel drives the limiting ring to rotate, and the limiting ring feeds towards the protruding test column.
Preferably, the rotary telescopic member comprises a moving column, the inner section of which is fixed with the pillar; a guide cylinder is sleeved outside the movable column; the inner wall of the guide cylinder is provided with an accommodating hole along the circumferential direction, and a ball is placed in the accommodating hole; the moving column is in rolling connection with the ball; the outer section of the moving column is positioned in the guide cylinder; an elastic component is arranged between the outer section of the moving column and the bottom of the guide cylinder.
Preferably, the coupling groove member includes:
the flange plate groove is arranged corresponding to the optical fiber flange plate, the transition groove is arranged corresponding to the support column, and the guide cavity is arranged corresponding to the rotary telescopic member;
the guide cavity extends into a test panel of the optical time domain reflectometer; one of the flange plate grooves is the interface groove.
The invention also provides an installation method of the optical fiber flange plate connection structure, which comprises the following steps:
step 1: pulling the optical fiber flange plate, extending the rotary shrinkage component, rotating the rotary shrinkage component when the optical fiber flange plate and the strut are separated from the connecting groove component, and stopping rotating when one of the optical fiber flange plates rotates to the interface groove;
step 2: the pulling force is removed, the rotary telescopic component automatically returns, the second optical fiber transmission cavity is aligned with the first optical fiber transmission cavity, and the protruding test column is clamped into the test cavity, so that the limiting hole is inserted into the limiting needle;
and step 3: the outer barrel is rotated, the outer barrel drives the limiting ring to rotate, the limiting ring feeds towards the protruding test column until the limiting ring is simultaneously in threaded connection with the optical fiber flange plate and the protruding test column.
Compared with the prior art, the invention has the advantages that:
1) the optical fiber flange plates of different types are integrated through the integrated component, and are installed on the connecting groove component (on the optical time domain reflectometer) through the rotary telescopic component, namely, the optical fiber flange plates of different types are integrated on the optical time domain reflectometer through the integrated component, the rotary telescopic component and the connecting groove component, so that the optical fiber flange plates are convenient to store, and the loss phenomenon can be avoided.
2) The required optical fiber flange plate can be rotated into the interface groove by rotating the telescopic member. The optical fiber flange plate can be selected, then the limiting ring is rotated, and the limiting ring is simultaneously in threaded connection with the optical fiber flange plate and the protruding test column. Therefore, the invention meets the connection requirements of different types of tail fibers.
Drawings
FIG. 1 is a front view of an integrated member and a rotary telescopic member integrated in one embodiment of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of the coupler slot member;
FIG. 4 is a schematic view of an inner end face of an FC flange;
FIG. 5 is a schematic outer end face of an FC flange;
FIG. 6 is a view showing the connection relationship between the FC flange and the outer cylinder;
FIG. 7 is a schematic structural view of the FC flange of FIG. 6;
fig. 8 is an enlarged view of a portion of the rotary telescopic member of fig. 1 where the ball and the guide cylinder are connected.
The test device comprises an integrated component 1, an optical fiber flange 11, a first optical fiber transmission cavity 111, a test cavity 112, a limiting needle 113, a first connecting pipe 114, a second connecting pipe 115, a first part 1141, a second part 1142, a limiting ring 12, a supporting column 13, an outer barrel 14, a rotary telescopic component 2, a moving column 21, a guide barrel 22, an elastic component 23, a ball 24, a connecting groove component 3, a flange groove 31, a transition groove 32, a guide cavity 33, a protruding test column 4, a limiting hole 41 and a second optical fiber transmission cavity 42.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying schematic drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
As shown in fig. 1 to 2, a connection structure of an optical fiber flange plate 11 includes: an integrated member 1, a rotary telescopic member 2, a connecting groove member 3 and a raised test column 4. Wherein, the integrated component 1 is used for integrating the optical fiber flange plate 11; the rotary telescopic member 2 is used for adjusting the height and the angle of the optical fiber flange plate 11; the connecting groove member 3 is used for accommodating the optical fiber flange plate 11, the support column 13 and the rotary telescopic member 2; the raised test posts serve to secure the selected fiber flange 11 to the optical time domain reflectometer OTDR.
The linkage relationship of the 3 parts of the integrated member 1, the rotary telescopic member 2 and the connecting groove member 3 is as follows: the integrated member 1 is pulled, the integrated member 1 drives the interior of the rotary telescopic member 2 to realize stretching, and the rotary telescopic member 2 extends, so that the integrated member 1 is pulled out from the connecting groove member 3; the pulling force is removed and the integrated component 1 is returned to its original position by the rotating telescopic component 2, and the desired fiber flange 11 enters the interface slot (in this embodiment, the desired fiber flange 11 is an FC flange). The integrated member 1, the rotary telescopic member 2, the connecting groove member 3 and the bump testing column are designed as follows:
as shown in fig. 1, the integrated component 1 is a composite disk comprising 4 different types of fiber flanges 11 (e.g., FC, SC, LC, and ST flanges) and 4 posts 13. The support column 13 is used to fix the optical fiber flange 11 to the rotary telescopic member 2, so that the optical fiber flange 11 is extended, retracted and rotated with the rotary telescopic member 2. Specifically, the structure of the optical fiber flange plate 11 is as follows: each optical fiber flange plate 11 is sleeved and connected with a limiting ring 12 in a threaded manner along the axial direction, and the limiting ring 12 is used for fixing the optical fiber flange plate 11 on a raised test column on the optical time domain reflectometer; a first optical fiber transmission cavity 111 is formed in each optical fiber flange plate 11 along the axial direction; the 4 optical fiber flange plates 11 are respectively fixed at the outer ends of 4 different support columns 13, and the inner ends of the 4 support columns 13 are respectively fixedly connected with the circumference at the outer section of the rotary telescopic member 2; the 4 struts 13 are all located on the same horizontal plane and distributed along the circumference.
In the present embodiment, the outer end and the inner end of the strut 13 are, with respect to the rotary telescopic member 2, the end of the strut 13 facing the rotary telescopic member 2 is the inner end, and the end of the strut 13 away from the rotary telescopic member 2 is the outer end. Wherein, as known in the art, the fiber flange 11 is provided with a collimating hole therein.
As shown in fig. 1-2 and 8, the inner end of the strut 13 is fixedly connected to the inner section of the rotary telescopic member 2; the outer section of the rotary telescopic member 2 is fixed on a test panel of the optical time domain reflectometer. Specifically, the structure of the rotary telescopic member 2 is designed as follows: comprises four parts of a moving column 21, a guide cylinder 22, a ball 24 and a spring member 23. Wherein the support column 13 is fixed on the circumference at the inner section of the moving column 21; a guide cylinder 22 is sleeved outside the movable column 21; the inner wall of the guide cylinder 22 is provided with an accommodating hole along the circumferential direction, a ball 24 is placed in the accommodating hole, and the ball 24 rolls in the accommodating hole; the moving column 21 is in rolling connection with the ball 24, that is, under the action of the ball 24, an external force is exerted on the guide cylinder 23, and the guide cylinder 22 can move along the axial direction of the moving column 21 and can rotate around the moving column 21; the outer section of the moving column 21 is positioned in the guide cylinder 22; an elastic member 23 is provided between the outer section of the moving post 21 and the bottom of the guide cylinder 22.
In this embodiment, the outer section and the inner section of the rotary telescopic member 2 are, with respect to the optical fiber flange 11, the section close to the optical fiber flange 11 is the inner section, and the section far from the optical fiber flange 11 (the section extending into the test panel of the optical time domain reflectometer) is the outer section. That is, the inner section and the outer section of the moving column 21 are relative to the optical fiber flange 11, the section close to the optical fiber flange 11 is the inner section, and the section far from the optical fiber flange 11 (the part extending into the test panel of the optical time domain reflectometer) is the outer section.
As shown in fig. 3, the connection groove member 3 is opened in a test panel of an optical instrument (optical time domain reflectometer OTDR) fixed to a test surface of the optical instrument. The test face test port requires replacement of the test connections and intermediate components. Specifically, the connecting groove member 3 is structurally designed as follows: in the connecting groove member 3, one member for accommodating the optical fiber flange plate 11 is an interface groove; a convex test column 4 is arranged in the interface groove; the protruding test column 4 is fixed on a test panel of the OTDR; an external thread is arranged on the convex test column 4; a second optical fiber transmission cavity 42 communicated with the interior of the optical time domain reflector is arranged in the protruded test column 4; the second fiber transmission cavity 42 and the first fiber transmission cavity 111 have the same diameter.
Preferably, the coupling slot member 3 may be designed to: comprises 4 flange grooves 31 arranged corresponding to the optical fiber flange 11, 4 transition grooves 32 arranged corresponding to the pillars 13, and a guide cavity 33 arranged corresponding to the rotary telescopic member 2; the guide cavity 33 extends into the test panel of the optical time domain reflectometer; one of the flange recesses 31 is an interface slot.
To sum up, in the first installation state, the optical fiber flange 11 is pulled, the rotary telescopic member 2 extends, the optical fiber flange 11 and the support column 13 are both separated from the connecting groove member 3, and the rotary telescopic member 2 is rotated; one of the optical fiber flanges 11 rotates to the interface slot; in the second installation state, the pulling force is removed, the rotary telescopic member 2 automatically returns under the self action, and the second optical fiber transmission cavity 42 and the first optical fiber transmission cavity 111 are calibrated; in the third installation state, the limiting ring 12 is rotated, the limiting ring 12 is simultaneously in threaded connection with the optical fiber flange 11 and the protruding test column 4, and at the moment, the optical fiber flange 11 is integrally installed on the optical time domain reflectometer OTDR.
As shown in fig. 4 to 6, in order to improve the alignment accuracy, a pair of optical fiber flanges 11 is designed, taking FC flanges as an example. Arranging a test cavity 112 matched with the protruding test column 4 on the optical fiber flange plate 11, namely the inner end surface of the FC flange plate; the test cavity 112 is sleeved with and connected with the limit ring 12 in a threaded manner; a limit needle 113 is arranged in the test cavity 112; a limiting hole 41 is formed on the outer end face of the protruding test column 4; after the second optical fiber transmission cavity 42 and the first optical fiber transmission cavity 111 are aligned, the protruding test column 4 is clamped into the test cavity 112, and the limiting needle 113 extends into the limiting hole 41. Thus, a two-layer alignment structure is formed that includes the alignment of the second fiber transmission lumen 42 and the first fiber transmission lumen 111, with the retaining pin 113 extending into the retaining hole 41.
In the present embodiment, the outer end surface and the inner end surface of the protruding test column 4 are opposite to the interface slot, and one end surface of the protruding test column 4 far away from the interface slot is the outer end surface. Further, the protruding test column 4 comprises an unthreaded section which is matched with the test cavity 112 and a threaded section which is matched with the limit ring 12; the diameter of the threaded section is greater than the diameter of the non-threaded section.
In the embodiment, in order to increase the convenience of connecting the integrated component 1 and the protruding test column, the structure of the FC flange is designed, and an outer cylinder 14 is further added outside the FC flange, and an external thread is arranged on the limit ring 12. The outer cylinder 14 is rotated, the outer cylinder 14 drives the limit ring 12 to rotate, and the limit ring 12 feeds towards the protruding test column 4.
Specifically, as known in the art, the fiber flange 11 includes 2 connection pipes, one of which (the first connection pipe 114) is used for connecting the test interface (the interface of the OTDR), and the other (the second connection pipe 115) is used for connecting the pigtail. In this embodiment, as shown in fig. 6 and 7, the diameter of the first connection pipe 114 is larger than that of the second connection pipe 115, and the first connection pipe 114 includes a first portion 1141 and a second portion 1142; the second portion 1142 is connected to the second connection pipe 115; the diameter of the first portion 1141 is larger than the diameter of the second portion 1142, so that the junction of the first portion 1141 and the second portion 1142 forms a slot for receiving the outer barrel 14; two ends of the outer cylinder 14 are communicated, namely mounting holes are formed; the optical fiber flange plate 11 is positioned in the outer cylinder 14; the outer cylinder 14 is detachably connected with the optical fiber flange plate 11; a tiny rotating gap is reserved between the outer cylinder 14 and the optical fiber flange plate 11 and is used for accommodating the limiting ring 12; the outer section of the optical fiber flange plate 11 extends out of the outer cylinder 14; the outer barrel 14 includes a first end face and a second end face; the first end face is close to the outer section of the optical fiber flange plate 11 and is embedded on the optical fiber flange plate 11; the second end face is far away from the outer section of the optical fiber flange plate 11, and the part of the outer cylinder 14 close to the second end face is provided with internal threads and is meshed with the external threads of the limiting ring 12. From above, set up internal thread and external screw thread simultaneously on the spacing ring 12. When the optical fiber flange plate is installed, the optical fiber flange plate 11 is plugged into the outer cylinder 14 from the left side of the outer cylinder 14, and then the limiting ring 12 is installed. Further, the second connection tube 115 is different in structure from the different types of fiber flange plates 11. Therefore, in the present invention, all of the 4 fiber flanges 11 may share one outer tube 14. Specifically, when another optical fiber flange 11 is selected, the FC flange may be removed and the outer tube 14 may be assembled to the other optical fiber flange 11.
The invention also discloses an installation method of the optical fiber flange plate 11 connection structure, which comprises the following steps:
step 1: pulling the optical fiber flange plate 11, extending the rotary shrinkage component, rotating the rotary shrinkage component 2 when the optical fiber flange plate 11 and the support column 13 are both separated from the connecting groove component 3, and stopping rotating when one optical fiber flange plate 11 rotates to the interface groove;
step 2: the pulling force is removed, the rotary telescopic member 2 automatically returns, the second optical fiber transmission cavity 42 is aligned with the first optical fiber transmission cavity 111, and the raised test column is clamped into the test cavity 112, so that the limiting hole 41 and the inserting limiting needle 113 are inserted into the limiting hole;
and step 3: the outer cylinder 14 is rotated, the outer cylinder 14 drives the limit ring 12 to rotate, the limit ring 12 feeds towards the protruding test column 4, and the limit ring 12 is simultaneously in threaded connection with the optical fiber flange plate 11 and the protruding test column 4.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A fiber flange connection structure, comprising:
the integrated component is used for integrating the optical fiber flange plates and comprises at least 2 optical fiber flange plates of different types and a support column which is arranged corresponding to each optical fiber flange plate;
the optical fiber flange plate is sleeved with and in threaded connection with a limiting ring; a first optical fiber transmission cavity is formed in the optical fiber flange plate along the axial direction; the optical fiber flange plates are respectively fixed with one end of the support; the struts are positioned on the same horizontal plane and distributed along the circumference;
the rotary telescopic member is used for adjusting the height and the angle of the integrated member, and the inner section of the rotary telescopic member is connected with the other end of the strut; the outer section of the rotary telescopic member is fixed on a test panel of the optical time domain reflectometer;
the connecting groove component is used for accommodating the optical fiber flange plate, the support column and the rotary telescopic component, and is arranged on the test panel of the optical time domain reflectometer;
in the connecting groove component, one component for accommodating the optical fiber flange plate is an interface groove; a protruding test column is arranged in the interface groove; an external thread is formed on the protruding test column; a second optical fiber transmission cavity communicated with the optical time domain reflectometer is arranged in the protruding test column; the diameters of the second optical fiber transmission cavity and the first optical fiber transmission cavity are the same;
in a first installation state, the optical fiber flange plate is pulled, the rotary telescopic member extends, the optical fiber flange plate and the support are separated from the connecting groove member, and the rotary telescopic member is rotated; one of the optical fiber flanges rotates to the interface slot;
in a second installation state, the rotary telescopic component automatically returns, and the second optical fiber transmission cavity is aligned with the first optical fiber transmission cavity;
and in a third installation state, the limiting ring is rotated and is simultaneously in threaded connection with the optical fiber flange plate and the protruding test column.
2. The optical fiber flange connection structure of claim 1, wherein the inner end surface of the optical fiber flange is provided with a test cavity for fitting the protruding test column; the test cavity is sleeved with the limiting ring and is in threaded connection with the limiting ring; a limit needle is arranged in the test cavity; the outer end face of the protruding test column is provided with a limiting hole; after the second optical fiber transmission cavity is aligned with the first optical fiber transmission cavity, the protruding test column is clamped into the test cavity, and the limiting needle extends into the limiting hole.
3. The fiber flange connection of claim 2, wherein the male test post includes an unthreaded section that mates with the test cavity, a threaded section that mates with the stop collar; the threaded section has a diameter greater than a diameter of the unthreaded section.
4. The fiber flange attachment structure of claim 2, further comprising an outer barrel; the limiting ring is provided with an external thread;
the outer cylinder is sleeved on the limiting ring and is in threaded connection with the limiting ring; the two ends of the outer cylinder are communicated; the optical fiber flange plate is positioned in the outer barrel; the outer section of the optical fiber flange plate extends out of the outer cylinder; the outer barrel is detachably connected with the optical fiber flange plate;
the outer barrel comprises a first end face and a second end face; the first end face is close to the outer section of the optical fiber flange plate and embedded on the optical fiber flange plate; the second end face is far away from the outer section of the optical fiber flange plate, and the part of the outer cylinder, which is close to the second end face, is provided with internal threads and is in threaded connection with the limiting ring;
the outer barrel is rotated, the outer barrel drives the limiting ring to rotate, and the limiting ring feeds towards the protruding test column.
5. The fiber flange attachment arrangement of claim 1, wherein the rotary telescoping member includes a mobile post having an inner section to which the post is secured; a guide cylinder is sleeved outside the movable column; the inner wall of the guide cylinder is provided with an accommodating hole along the circumferential direction, and a ball is placed in the accommodating hole; the moving column is in rolling connection with the ball; the outer section of the moving column is positioned in the guide cylinder; an elastic component is arranged between the outer section of the moving column and the bottom of the guide cylinder.
6. The fiber flange attachment structure of claim 5, wherein the attachment slot member includes:
the flange plate groove is arranged corresponding to the optical fiber flange plate, the transition groove is arranged corresponding to the support column, and the guide cavity is arranged corresponding to the rotary telescopic member;
the guide cavity extends into a test panel of the optical time domain reflectometer; one of the flange plate grooves is the interface groove.
7. A method of installing the fiber flange attachment structure of claim 4, comprising the steps of:
step 1: pulling the optical fiber flange plate, extending the rotary shrinkage component, rotating the rotary shrinkage component when the optical fiber flange plate and the strut are separated from the connecting groove component, and stopping rotating when one of the optical fiber flange plates rotates to the interface groove;
step 2: the pulling force is removed, the rotary telescopic component retracts and automatically returns, the second optical fiber transmission cavity is aligned to the first optical fiber transmission cavity, and the raised test column is clamped into the test cavity, so that the limiting hole is inserted into the limiting needle;
and step 3: the outer barrel is rotated, the outer barrel drives the limiting ring to rotate, the limiting ring feeds towards the protruding test column until the limiting ring is simultaneously in threaded connection with the optical fiber flange plate and the protruding test column.
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| CN202010161105.0A CN111323206B (en) | 2020-03-10 | 2020-03-10 | Optical fiber flange plate connecting structure and mounting method thereof |
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| CN202010161105.0A CN111323206B (en) | 2020-03-10 | 2020-03-10 | Optical fiber flange plate connecting structure and mounting method thereof |
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| CN111323206B CN111323206B (en) | 2021-11-16 |
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Application publication date: 20200623 Assignee: Nanjing Zhongxing xinyada Information Technology Co.,Ltd. Assignor: Nanjing Vocational College of Information Technology Contract record no.: X2021980017046 Denomination of invention: An optical fiber flange connection structure and its installation method Granted publication date: 20211116 License type: Common License Record date: 20211230 |
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