CN113866889A - Optical fiber optical path switching device and optical fiber optical path switching method based on same - Google Patents

Abstract

The application relates to an optical fiber optical path switching device. The device includes: the light source input end and the light source output interface are arranged on the side face of the shell opposite to the shell; a first connecting rod, a second connecting rod and a roller with a groove are arranged in the inner cavity of the shell; the first connecting rod is provided with a ceramic core fixing piece, and a butting ceramic core is fixed on the ceramic core fixing piece; the surface of the roller with the groove is provided with a guide groove, the second connecting rod is provided with a driving guide piece, and the driving guide piece is connected with the guide groove in a sliding manner; a transmission shaft penetrates through the grooved roller and is provided with a power input mechanism; the second connecting rod is provided with a driving connecting piece, and the driving connecting piece is connected with the first connecting rod; an incomplete gear is arranged between the power input structure and the roller with the groove and is matched with the overturning gear on the first connecting rod to drive the ceramic core fixing piece to rotate. The scheme provided by the application can improve the testing efficiency and reduce unnecessary loss in the testing process.

Description

Optical fiber optical path switching device and optical fiber optical path switching method based on same

Technical Field

The application relates to the technical field of optical fiber detection, in particular to an optical fiber light path switching device and an optical fiber light path switching method based on the same.

Background

At present, in the test of an optical fiber cable, an optical fiber to be tested is connected between an output end of a light source and an input end of an optical power meter through a flange plate for testing, and the light source used for the test generally adopts independent light sources with the wavelength of 1550nm and 1310nm, so that when the independent light sources with different wavelengths are switched in the test process, a light source output plug needs to be detached from the flange plate and taken out, and then another light source output plug is installed into the flange plate again, dust is easily brought into a ceramic core of the flange plate in the switching process, so that the ceramic core needs to be cleaned or replaced frequently, the test cost is high, and the test efficiency is low; in addition, frequent circuit disassembly and assembly easily cause irreversible damage to the peripheral optical fiber to be tested, such as falling to the ground, tearing off and the like, and unnecessary loss is generated in the testing process.

In the prior art, patent No. CN112363275A (an automatic optical fiber fusion splicing device) proposes a device for cutting optical fibers, carrying optical fibers in a same position, and splicing optical fibers, which can achieve rapid cutting and orderly butt joint, and improve the efficiency of fusion splicing.

The above prior art has the following disadvantages:

the switching among a plurality of test light sources can not be realized in the optical fiber cable test, and the detection efficiency can not be improved. Therefore, the problem of how to accurately switch the test light source in the optical fiber attenuation test needs to be solved, the test efficiency is improved, and unnecessary loss in the test process is reduced.

Disclosure of Invention

In order to overcome the problems in the related art, the application provides the optical fiber optical path switching device which can improve the testing efficiency and reduce unnecessary loss in the testing process.

The present application provides in a first aspect an optical fiber optical path switching apparatus, including:

the device comprises a shell 1, wherein a light source input end 2 and a light source output interface 3 are respectively arranged on the shell side surface 11 opposite to the shell 1; the light source input ends 2 are at least two;

a first connecting rod 4, a second connecting rod 5 and a roller 6 with a groove are arranged in a shell inner cavity 12 of the shell 1, and the first connecting rod 4 and the second connecting rod 5 are parallel and are supported and fixed through a connecting rod supporting structure 7;

a ceramic core fixing piece 41 is arranged at one end of the first connecting rod 4 close to the light source input end 2, a butt-joint ceramic core 411 is fixed on the ceramic core fixing piece 41, and an output soft optical fiber 31 is connected between one end of the butt-joint ceramic core 411 close to the light source output interface 3 and the light source output interface 3;

a guide groove 61 is formed in the roller surface of the roller 6 with the groove, a driving guide 51 is arranged at one end, close to the light source output interface 3, of the second connecting rod 5, and the driving guide 51 is connected with the guide groove 61 in a sliding mode;

a transmission shaft 8 penetrates through a straight line where the central points of the two side end faces of the grooved roller 6 are located, and a power input mechanism 9 is arranged at one end, close to the light source input end 2, of the transmission shaft 8, so that when the transmission shaft 8 drives the grooved roller 6 to rotate, the driving guide piece 51 slides along the track of the guide groove 61 to drive the second connecting rod 5 to move in a translation manner;

one end of the second connecting rod 5 close to the light source input end 2 is provided with a driving connecting piece 52, and the driving connecting piece 52 is connected with the first connecting rod 4, so that the second connecting rod 5 can drive the first connecting rod 4 to move;

an incomplete gear 81 is arranged between the power input structure 9 and the roller 6 with the groove and is matched with the overturning gear 42 on the first connecting rod 4 to drive the ceramic core fixing piece 41 to rotate.

In one embodiment, the power input mechanism 9 includes: a stepping motor 91 and a transmission gear;

the transmission gears comprise a first transmission gear 92, a second transmission gear 93 and a double-bevel gear structure;

the double bevel gear structure comprises a horizontal bevel gear 94 and a vertical bevel gear 95;

the rotor of the stepping motor 91 is clamped with the circle center position of the first transmission gear 92;

the first transmission gear 92 is meshed with the second transmission gear 93;

a connecting shaft 96 is clamped between the circle center position of the second transmission gear 93 and the circle center position of the horizontal bevel gear 94, and the connecting shaft 96 penetrates through the horizontal bevel gear 94 and is arranged in a bearing shaft head 121 on the bottom surface of the inner cavity 12 of the shell;

one end of the transmission shaft 8 close to the light source input end 2 is clamped with the circle center position of the vertical bevel gear 95, and the other end of the transmission shaft 8 is arranged in a support shaft head 122 on the inner side wall of the inner cavity 12 of the shell.

In one embodiment, the inner sidewall is provided with a limiting protrusion 123;

a limiting baffle plate 62 is arranged on the end surface of one side of the grooved roller 6 close to the inner side wall;

the limit projection 123 is in the rotation track of the limit stop 62.

In one embodiment, the partial gear 81 has toothed portions 811 alternating with non-toothed portions 812.

In one embodiment, a circumferential flange 43 is disposed on a side wall of the first link 4, and the first link 4 passes through the turnover gear 42 through a center of the turnover gear 42, so that the turnover gear 42 can drive the first link 4 to rotate;

a first limiting clamping block 44 and a second limiting clamping block 45 are fixed on the side wall of the first connecting rod 4, and the driving connecting piece 52 is clamped between the first limiting clamping block 44 and the second limiting clamping block 45.

In one embodiment, a limit slot 124 is fixed on the bottom surface of the inner cavity 12 of the housing, and the turnover gear 42 is located between the two side slot walls of the limit slot 124.

In one embodiment, the light source input 2 comprises a light source input interface 21 and a light source input post 22;

an input ceramic core is arranged in the light source input interface 21; the input ceramic core includes a first input ceramic core 211 and a second input ceramic core 212;

the first input ceramic core 211 is arranged at one end of the light source input interface 21 facing the outside of the shell 1; the second input ceramic core 212 is arranged at one end of the light source input interface 21 facing the inner cavity 12 of the shell;

the light source pair post 22 includes a first butt end 221 and a second butt end 222, and the first butt end 221 and the second butt end 222 are communicated;

an access ceramic core 223 is arranged in the first butt joint end 221, and an input soft optical fiber 224 is connected between the second input ceramic core 212 and the access ceramic core 223;

the second docking end 222 is provided with a docking bowl 225, and the opening diameter of the docking bowl 225 gradually increases along the direction from the light source input end 2 to the light source output interface 3.

In one embodiment, an output ceramic core is provided inside the light source output interface 3; the output ceramic cores include a first output ceramic core 32 and a second output ceramic core 33;

the first output ceramic core 32 is disposed at one end of the light source output interface 3 facing the outside of the housing 1; the second output ceramic core 33 is arranged at one end of the light source output interface 3 facing the inner cavity 12 of the shell;

an output soft optical fiber 31 is connected between the second output ceramic core 33 and one end of the docking ceramic core 411 close to the light source output interface 3.

In one embodiment, the optical fiber optical path switching apparatus further includes: a cover plate 13;

a sealing rubber pad 14 and a connecting screw hole 15 are arranged at the connecting position of the cover plate 13 and the shell 1;

the surface of the cover plate 13 is provided with a touch display screen 131 for controlling the running state of the stepping motor 91;

a fixing flange 16 is arranged at the edge of the bottom surface of the shell 1, and a fixing screw hole 161 is arranged on the fixing flange 16; the bottom surface of the housing is the surface opposite to the surface on which the cover 13 is located.

A second aspect of the present application provides an optical fiber optical path switching method for controlling the optical fiber optical path switching apparatus provided above to perform optical fiber optical path switching, where the optical fiber optical path switching method includes:

receiving a switching control signal;

and controlling a stepping motor in the power input mechanism to rotate by a first preset angle according to the switching control signal, and driving the incomplete gear and the grooved roller to rotate by a second preset angle, so that the butted ceramic core is switched between at least two light source input ends.

The technical scheme provided by the application can comprise the following beneficial effects:

in the optical fiber light path switching device, power is provided through a power input mechanism to drive a transmission shaft penetrating through a grooved roller to rotate, so that when the grooved roller rotates, a guide groove on the grooved roller guides a driving guide piece to slide along the track of the guide groove to drive a second connecting rod to move in a translation manner, the second connecting rod drives a first connecting rod to move through a driving connecting piece, a butting ceramic core fixed on a ceramic core fixing piece at one end of the first connecting rod, which is close to a light source input end, can reach the light source input end and can be butted with the light source input end, and an output soft optical fiber is connected between one end of the butting ceramic core, which is close to the light source output interface, and the light source output interface, so that the conduction between the light source input end and the light source output interface is realized; the transmission shaft can drive the incomplete gear on the transmission shaft to rotate simultaneously, with the cooperation of the upset gear on the first connecting rod, when incomplete gear and the meshing of upset gear, drive ceramic core mounting and rotate, when no gear and the meshing of upset gear in the incomplete gear, ceramic core mounting does not rotate, thereby can make butt joint ceramic core accomplish the translation motion and the rotary motion that advance and retreat along with the rotation of transmission shaft, make butt joint ceramic core can butt joint corresponding light source input department, conduct the test light source to the light source output interface in, the negative effects that the dismouting test light source in-process brought have been eliminated, and the efficiency of software testing is improved, unnecessary loss in the reduction test procedure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic overall structure diagram of an optical fiber optical path switching apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a grooved roller in an optical fiber optical path switching apparatus according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a mechanism for driving an optical fiber optical path to switch in an optical fiber optical path switching device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a double bevel gear structure in an optical fiber optical path switching apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an incomplete gear and a turnover gear in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 6 is a schematic horizontal cross-sectional view of a mechanism for switching an optical fiber path in an optical fiber path switching device according to an embodiment of the present application;

fig. 7 is an internal structural view of the optical fiber optical path switching apparatus according to the embodiment of the present application, in which a first link penetrates a first support mechanism;

fig. 8 is a schematic structural diagram of a first link in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 9 is a schematic structural diagram of a light source input end in an optical fiber optical path switching apparatus according to an embodiment of the present application;

fig. 10 is a first structural diagram of a light source input interface at a light source input end in the optical fiber circuit switching apparatus according to the embodiment of the present application;

fig. 11 is a second structural diagram of a light source input interface of a light source input end in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 12 is a third structural diagram of a light source input interface of a light source input end in the optical fiber circuit switching apparatus according to the embodiment of the present application;

fig. 13 is a first structural diagram of a light source output interface in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 14 is a second structural view of a light source output interface in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 15 is a third structural diagram of a light source output interface in the optical fiber optical path switching apparatus according to the embodiment of the present application;

fig. 16 is a schematic structural diagram of a cover plate in the optical fiber optical path switching apparatus according to the embodiment of the present application.

Detailed Description

Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example one

When independent light sources with different wavelengths are switched in a testing process, a light source output plug needs to be detached from a flange plate and taken out, and then another light source output plug is installed in the flange plate again, so that dust is easily brought into a ceramic core of the flange plate in the switching process, the ceramic core needs to be cleaned or replaced frequently, the testing cost is high, and the testing efficiency is low; in addition, frequent circuit disassembly and assembly easily cause irreversible damage to the peripheral optical fiber to be tested, such as falling to the ground, tearing off and the like, and unnecessary loss is generated in the testing process. Therefore, the problem of how to accurately switch the test light source in the optical fiber attenuation test needs to be solved, the test efficiency is improved, and unnecessary loss in the test process is reduced.

In view of the above problems, embodiments of the present application provide an optical fiber optical path switching device, which can improve testing efficiency and reduce unnecessary loss in a testing process.

The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, an embodiment of the optical fiber optical path switching apparatus according to the embodiment of the present application includes:

the housing 1 and the housing 1 serve as a protective housing of the optical fiber optical path switching apparatus of the present application, and protect an internal device.

The opposite side surfaces 11 of the housing 1 are respectively provided with a light source input end 2 and a light source output interface 3, in the embodiment of the present application, there are at least two light source input ends 2, it can be understood that, with the development of science and technology, the wavelength types of light sources for testing light may become gradually larger, or the types of optical fibers increase, and it is necessary to use light sources of other wavelength types for testing, and if this happens, more than two light source input ends 2 are needed to access light sources of other wavelength types for switching.

As shown in fig. 1, a first link 4, a second link 5 and a roller 6 with a groove are disposed in a housing inner cavity 12 of the housing 1, the first link 4 and the second link 5 are parallel and are supported and fixed by a link supporting structure 7, in the embodiment of the present application, the first link 4 and the second link 5 are parallel in a vertical direction, the second link 5 is disposed above the first link 4 and is supported and fixed by the link supporting structure 7, so as to prevent the positions of the first link 4 and the second link 5 from shifting, and affect the efficiency of optical fiber path switching.

The one end that first connecting rod 4 is close to light source input 2 is equipped with ceramic core mounting 41, can set up a fixed orifices on the ceramic core mounting 41, be used for fixed butt joint ceramic core 411, the ceramic core is a white smooth, the both ends terminal surface is through the light path connecting device of accurate polishing, be connected with output soft optic fibre 31 between the one end that butt joint ceramic core 411 is close to light source output interface 3 and the light source output interface 3, after butt joint ceramic core 411 and light source input 2 accomplish the back butt joint, can realize that the light path between light source input 2 and the light source output interface 3 switches on.

As shown in fig. 2, the grooved roller 6 is provided with a guide groove 61 on the roller surface, the guide groove 61 may be provided as a "Z" shaped guide groove rail having two parallel rail grooves parallel to the end surface of the grooved roller 6 and a displacement rail groove connecting the two parallel rail grooves, one end of the second link 5 near the light source output interface 3 is provided with a driving guide 51, the driving guide 51 is slidably connected to the guide groove 61, it is understood that, when the grooved roller 6 rotates, the guide groove 61 guides the driving guide 51 to perform a translational motion of advancing and retracting along the path of the guide groove 61, wherein, when the driving guide 51 is in the parallel rail groove, the driving guide 51 does not perform the translational motion, and when the driving guide 51 is in the displacement rail groove, the driving guide 51 moves along the displacement rail groove from the parallel rail groove on one side to the parallel rail groove on the other side, corresponding to the distance between the two parallel track grooves over which the driving guide 51 translates.

In the embodiment of the present application, the guide groove 61 may be formed by connecting a plurality of "Z" shaped guide groove tracks, and may be a square wave shaped guide groove 61 according to the number of the light source input ends 2, and the time of the driving guide 51 on the displacement track groove is less than half of the total time of the driving guide 51 on the "Z" shaped guide groove track, it can be understood that, in practical applications, the implementation manner of the guide groove 61 is various, and the above description of the guide groove 61 is only exemplary, and the implementation manner of the guide groove 61 needs to be determined according to practical application situations, and is not limited herein.

A transmission shaft 8 penetrates through the straight line where the central points of the two side end surfaces of the grooved roller 6 are positioned, so that the grooved roller 6 is more stable when rotating, the optical path switching effect and stability of the optical fiber are improved, a power input mechanism 9 is arranged at one end of the transmission shaft 8 close to the light source input end 2, is used for providing power, so that the transmission shaft 8 drives the grooved roller 6 to rotate, the driving guide 51 slides along the track of the guide groove 61 to drive the second connecting rod 5 to move in a translation way, one end of the second connecting rod 5, which is close to the light source input end 2, is provided with a driving connecting piece 52, the driving connecting piece 52 is connected with the first connecting rod 4, so that the second connecting rod 5 can drive the first connecting rod 4 to move in a translation manner while moving in a translation manner, so that the butting ceramic core 411 on the first connecting rod 4 can reach the position of the light source input end 2, and the light path conduction between the light source input end 2 and the light source output interface 3 is realized.

In addition, be equipped with incomplete gear 81 between power input structure 9 and the grooved roller 6, with the upset gear 42 cooperation on the first connecting rod 4, drive ceramic core mounting 41 and rotate to can adjust the angle of butt joint ceramic core 411 to the position of aiming at light source input 2, dock with corresponding light source input 2, realize the switching between each light source input 2. In this embodiment, it may be set that after the angle adjustment of the docking ceramic core 411 is completed, the translational movement of the first connecting rod 4 is performed, so as to complete the switching and docking, correspondingly, when the flipping gear 42 rotates, the driving guide 51 may be located on the parallel track groove, and when the flipping gear 42 does not rotate, the driving guide 51 may be located on the displacement track groove. It should be understood that, in practical applications, the switching and the docking may be performed in various sequences or simultaneously, and the timing of the rotation of the flipping gear 42 and the timing of the occurrence of the translational movement are set accordingly according to practical applications, which is not limited herein.

The following beneficial effects can be seen from the first embodiment:

in the optical fiber light path switching device, power is provided through a power input mechanism to drive a transmission shaft penetrating through a grooved roller to rotate, so that when the grooved roller rotates, a guide groove on the grooved roller guides a driving guide piece to slide along the track of the guide groove to drive a second connecting rod to move in a translation manner, the second connecting rod drives a first connecting rod to move through a driving connecting piece, a butting ceramic core fixed on a ceramic core fixing piece at one end of the first connecting rod, which is close to a light source input end, can reach the light source input end and can be butted with the light source input end, and an output soft optical fiber is connected between one end of the butting ceramic core, which is close to the light source output interface, and the light source output interface, so that the conduction between the light source input end and the light source output interface is realized; the transmission shaft can drive the incomplete gear on the transmission shaft to rotate simultaneously, with the cooperation of the upset gear on the first connecting rod, when incomplete gear and the meshing of upset gear, drive ceramic core mounting and rotate, when no gear and the meshing of upset gear in the incomplete gear, ceramic core mounting does not rotate, thereby can make butt joint ceramic core accomplish the translation motion and the rotary motion that advance and retreat along with the rotation of transmission shaft, make butt joint ceramic core can butt joint corresponding light source input department, conduct the test light source to the light source output interface in, the negative effects that the dismouting test light source in-process brought have been eliminated, and the efficiency of software testing is improved, unnecessary loss in the reduction test procedure.

Example two

For convenience of understanding, an embodiment of the optical fiber optical path switching device is provided below for description, in practical applications, the power input mechanism uses a stepping motor to provide power, and transmits the power through a transmission gear and adjusts a rotation angle of the stepping motor to improve a switching effect of an optical fiber optical path.

Referring to fig. 3 to 6 and fig. 8, an embodiment of the optical fiber optical path switching apparatus according to the embodiment of the present application includes:

in the embodiment of the present application, as shown in fig. 3, the power input mechanism 9 includes, but is not limited to, a stepping motor 91 and a transmission gear, the stepping motor 91 is a motor that converts an electric pulse signal into a corresponding angular displacement or linear displacement, and the rotor rotates one angle or one step forward for each input of the pulse signal, the output angular displacement or linear displacement is proportional to the number of input pulses, and the rotation speed is proportional to the pulse frequency. The rotation angle of the stepping motor 91 and the rotation angle between the transmission gears may form a mapping relationship, for example, after the stepping motor 91 rotates a first gear angle, the transmission gears may drive the transmission shaft 8 to rotate a corresponding angle, such as 90 °, the transmission shaft 8 may drive the incomplete gear 81 and the grooved roller 6 to rotate the corresponding angle, thereby adjusting the rotation angle of the stepping motor 91.

The transmission gear includes but is not limited to a first transmission gear 92, a second transmission gear 93 and a double-cone gear structure, a rotor of the stepping motor 91 is clamped with a circle center position of the first transmission gear 92 to drive the first transmission gear 92 to rotate, the first transmission gear 92 is meshed with the second transmission gear 93, and power of the stepping motor 91 is transmitted to the second transmission gear 93 from the first transmission gear 92.

As shown in fig. 4, the double-bevel gear structure includes, but is not limited to, a horizontal bevel gear 94 and a vertical bevel gear 95, and a connecting shaft 96 is clamped between the circle center position of the second transmission gear 93 and the circle center position of the horizontal bevel gear 94, so that the second transmission gear 93 can drive the horizontal bevel gear 94 to rotate, and the connecting shaft 96 is installed in a bearing shaft head 121 on the bottom surface of the inner cavity 12 of the housing through the horizontal bevel gear 94, thereby preventing the horizontal bevel gear 94 from rotating along the bottom surface of the inner cavity 12 of the housing, improving the smoothness of transmission, and reducing the loss of unnecessary power consumption. The horizontal bevel gear 94 and the vertical bevel gear 95 are engaged in the double bevel gear structure to change the transmission direction of power.

One end that transmission shaft 8 is close to light source input 2 and vertical bevel gear 95's centre of a circle position joint, the other end of transmission shaft 8 is installed in the support spindle nose 122 on the inside wall of casing inner chamber 12, when making vertical bevel gear 95 can drive transmission shaft 8 pivoted, can hang incomplete gear 81 and trough of belt gyro wheel 6 among the casing inner chamber 12 through transmission shaft 8, avoid incomplete gear 81 and trough of belt gyro wheel 6 to scrape the bottom of casing inner chamber 12 when rotating, cause and rotate unsmoothly, make the switching process unstable, influence the switching effect, reduce switching efficiency.

In this embodiment, a limiting protrusion 123 is disposed on the inner side wall of the housing cavity 12, a limiting baffle 62 is disposed on an end surface of one side of the grooved roller 6 close to the inner side wall, the limiting protrusion 123 is located in a rotation track of the limiting baffle 62, when the grooved roller 6 is rolling and the limiting baffle 62 touches the limiting protrusion 123, it is described that the docking ceramic core 411 is aligned with the position of the light source input end 2 at the edge, and when switching next time, the grooved roller 6 needs to be driven to rotate in a direction opposite to the current rotation direction.

As shown in fig. 5, the toothed portion 811 and the non-toothed portion 812 of the incomplete gear 81 are arranged alternately and are paired, in the embodiment of the present application, the number of the light source input ends 2 is two, so that the toothed portion 811 and the non-toothed portion 812 of the incomplete gear 81 account for half of each other, in practical applications, the number of the sets of the toothed portion 811 and the non-toothed portion 812 increases with the number of the light source input ends 2, and the gear set may also be continuously increased, which is determined according to practical applications and is not limited herein.

As shown in fig. 3 and 6, a circumferential flange 43 is provided on the side wall of the first connecting rod 4, the first connecting rod 4 penetrates through the overturning gear 42 through the center of the overturning gear 42, a through hole through which the first connecting rod 4 passes and a groove capable of clamping the circumferential flange 43 are provided at the center of the overturning gear 42, so that in the rotating process of the overturning gear 42, the circumferential flange 43 can be shifted by the groove wall of the groove to drive the first connecting rod 4 to rotate, and the rotating stability of the first connecting rod 4 is improved. It should be understood that the above design of the position of the center of the turnover gear 42 is only exemplary, and needs to be designed according to the practical application, and is not limited herein.

Still be fixed with first spacing fixture block 44 and the spacing fixture block 45 of second on the lateral wall of first connecting rod 4, drive connecting piece 52 chucking is between first spacing fixture block 44 and the spacing fixture block 45 of second, when second connecting rod 5 takes place translational motion, drive connecting piece 52 can steadily drive first connecting rod 4 and take place translational motion under the fixed action of first spacing fixture block 44 and the spacing fixture block 45 of second, the condition of avoiding skidding appears, the translational motion that causes first connecting rod 4 is unstable, influence the butt joint effect. In addition, in the embodiment of the present application, a driving through hole may be formed in the driving connecting member 52, the first link 4 penetrates through the driving through hole to realize the connection between the driving connecting member 52 and the first link 4, or a clamping opening may be formed in the driving connecting member 52, and the clamping opening is clamped between the first limiting clamping block 44 and the second limiting clamping block 45 to realize the connection between the driving connecting member 52 and the first link 4.

The bottom surface of the inner cavity 12 of the housing is fixed with a limiting clamping groove 124, and the overturning gear 42 is located between the groove walls on both sides of the limiting clamping groove 124, so that the overturning gear 42 can be prevented from shifting in the translational motion process of the first connecting rod 4, and the overturning gear 42 is prevented from being separated from the incomplete gear 81.

The following advantageous effects can be seen from the second embodiment:

the stepping motor provides power for switching of the optical fiber light path, the transmission gear is used for transmitting the power and adjusting the rotating angle of the stepping motor, the stability and the switching butt joint effect of the optical fiber light path in the switching process are improved, and the switching butt joint efficiency is improved.

EXAMPLE III

For the sake of understanding, the following provides an embodiment of the optical fiber optical path switching device for illustration, and in practical applications, the first link and the second link are fixed by the link support structure, and the link support structure can prevent the ceramic core fixing member from shifting due to vibration or other reasons, which may result in the failure of the butt joint of the ceramic core and the light source input end.

Referring to fig. 3, 6 and 7, a third embodiment of the optical fiber optical path switching apparatus according to the embodiment of the present application includes:

the connecting rod supporting structure 7 is fixed on the bottom surface of the inner cavity 12 of the housing, and the connecting rod supporting structure 7 includes, but is not limited to, a first supporting mechanism 71 and a second supporting mechanism 72, which play a role in supporting and stabilizing the first connecting rod 4 and the second connecting rod 5, and prevent the first connecting rod 4 and the second connecting rod 5 from being out of position.

The first supporting mechanism 71 is provided with a first channel 711, the first connecting rod 4 penetrates through the first channel 711, the inner wall of the channel of the first channel 711 is provided with a plurality of limiting grooves 712, and the number of the limiting grooves 712 is determined according to the number of the light source input ends 2; a spring 46 is arranged inside the first link 4, one end of the spring 46 is fixed on the inner wall of the first link 4, the other end is connected with a clamping ball 47, a hemisphere of the clamping ball 47 is exposed on the surface of the first link 4, when the ceramic core fixing member 41 rotates to an angle corresponding to the alignment of the butting ceramic core 411 with the light source input end 2, the clamping ball 47 is clamped in the limiting groove 712, in the embodiment of the present application, the clamping ball 47 is a light-weight sphere, and the spring 46 is a light-weight spring, it can be understood that when the turnover gear 42 rotates, the inner groove wall of the limiting groove 712 generates pressure on the clamping ball 47, and due to the existence of the spring 46, a hemisphere exposed on the surface of the first link 4 in the clamping ball 47 can be extruded into the interior of the first link 4, so as to realize the turnover of the first link 4 until encountering the next limiting groove 712, and if the turnover gear 42 stops rotating at this time, the clamping ball 47 will pop out the surface of the first connecting rod 4 again, and the clamping enters the limiting groove 712 to stabilize the current rotating position of the first connecting rod 4, so as to avoid the situation that the first connecting rod 4 continues to rotate due to vibration or other reasons to cause the deviation of the ceramic core fixing piece 41, and further cause the butt joint failure of the butt joint ceramic core and the light source input end.

The second supporting mechanism 72 is provided with a second channel 721 and a third channel 722, in this embodiment, the second channel 721 and the third channel 722 are distributed in parallel in the vertical direction, the second link 5 penetrates through the second channel 721, and the first link 4 penetrates through the third channel 722, so that the first link 4 and the second link 5 can be stably parallel.

The following beneficial effects can be seen from the third embodiment:

carry out the bearing through connecting rod bearing structure to first connecting rod and second connecting rod and stabilize, prevent that first connecting rod and second connecting rod from taking place the position deviation, be equipped with spacing recess in first supporting mechanism, spring and joint ball in the first connecting rod of cooperation avoid vibrations or other reasons to cause first connecting rod to continue to rotate and lead to the skew of ceramic core mounting to lead to butt joint ceramic core and light source input butt joint failure, improve and switch butt joint efficiency.

Example four

In addition, in order to protect the structure in the device, the optical fiber optical path switching device is further provided with a cover plate and a sealing rubber gasket arranged at the connecting position of the cover plate and the shell, so as to play a role in dust prevention and protection.

Referring to fig. 9 to 16, a fourth embodiment of the optical fiber optical path switching apparatus according to the embodiment of the present application includes:

as shown in fig. 9 to 12, the light source input end 2 includes a light source input interface 21 and a light source pair post 22, an input ceramic core is disposed inside the light source input interface 21, the input ceramic core includes a first input ceramic core 211 and a second input ceramic core 212, the light source input interface 21 is a flange structure as shown in fig. 10, wherein a cylindrical structure portion is an input bayonet exposed outside the housing 1 and connected with a light source generating instrument, the first input ceramic core 211 is disposed at an end of the light source input interface 21 facing the outside of the housing 1, that is, in the input bayonet; the rectangular column structure is inserted into the housing cavity 12 and is mounted and fixed to the housing side 11, and the second input ceramic core 212 is disposed at an end of the light source input interface 21 facing the housing cavity 12, that is, in the mounting structure.

The light source pair connection post 22 comprises a first connection end 221 and a second connection end 222, the first connection end 221 is communicated with the second connection end 222, an access ceramic core 223 is arranged in the first connection end 221, and an input soft optical fiber 224 is connected between the second input ceramic core 212 and the access ceramic core 223; the second docking end 222 is provided with a docking bowl 225, the opening diameter of the docking bowl 225 gradually increases along the direction from the light source input end 2 to the light source output interface 3, and the docking bowl 225 plays a role in docking the ceramic core 411 with the second docking end 222, so as to eliminate the influence caused by tolerance generated in the docking process of the docking ceramic core 411 with the light source docking column 22, improve the docking accuracy, and improve the switching docking efficiency.

Accordingly, as shown in fig. 13 to fig. 15, an output ceramic core is disposed inside the light source output interface 3, the output ceramic core includes a first output ceramic core 32 and a second output ceramic core 33, the light source output interface 3 is a flange structure as shown in fig. 13, and is consistent with the light source input interface 21, it can be understood that, in practical application, the light source output interface 3 and the light source input interface 21 may adopt different structures, which is determined according to practical application conditions, and is not limited herein. The cylindrical structure part of the flange structure is an output bayonet exposed outside the shell 1 and connected with the optical fiber detection end, and the first output ceramic core 32 is arranged at one end of the light source output interface 3 facing the outside of the shell 1, namely in the output bayonet; the rectangular column structure is inserted into the housing cavity 12 and is mounted and fixed with the housing side 11, and the second output ceramic core 33 is disposed at an end of the light source output interface 3 facing the housing cavity 12, that is, in the mounting structure. An output soft optical fiber 31 is connected between the second output ceramic core 33 and one end of the docking ceramic core 411 close to the light source output interface 3.

In order to protect the structure in the device, the optical fiber light path switching device further comprises a cover plate 13, a sealing rubber gasket 14 and a connecting screw hole 15 are arranged at the connecting position of the cover plate 13 and the shell 1, the cover plate 13 is correspondingly provided with a screw hole for fixing the cover plate 13 and the shell 1, and meanwhile, the sealing rubber gasket 14 is pressed to prevent dust from entering the device.

As shown in fig. 16, a touch display screen 131 is disposed on the surface of the cover plate 13, and a processor is disposed inside the touch display screen and electrically connected to the stepping motor 91 through a circuit for controlling the operation state of the stepping motor 91.

The edge of the bottom surface of the shell 1 is provided with a fixing flange 16, the bottom surface of the shell is a surface opposite to the surface of the cover plate 13, and the fixing flange 16 is provided with a fixing screw hole 161, so that the optical fiber light path switching device can be fixed on a workbench, the device is prevented from sliding in work engineering, and the risk of falling to the ground is also avoided.

The following beneficial effects can be seen from the fourth embodiment:

the light source input end consists of a light source input interface and a light source butt joint column, the stroke of the butt joint ceramic core can be reduced, the butt joint bowl mouth on the light source butt joint column can eliminate tolerance generated in the butt joint process, reduce deviation generated in the switching butt joint process and improve the butt joint accuracy; the device is fixed on the workbench through the fixing screw holes on the fixing flanges, so that the device is prevented from sliding in work engineering, the risk of falling to the ground is avoided, the device is protected, and the service life of the device is prolonged; the running state of the stepping motor is controlled through the touch display screen, and the intellectualization of the device is realized.

EXAMPLE five

Corresponding to the embodiment of the application function implementation method, the application also provides an optical fiber optical path switching method for controlling the optical fiber optical path switching device to switch the optical fiber optical path and a corresponding embodiment.

An embodiment of the optical fiber optical path switching apparatus shown in the embodiment of the present application includes:

receiving a switching control signal;

and controlling a stepping motor in the power input mechanism to rotate by a first preset angle according to the switching control signal, and driving the incomplete gear and the grooved roller to rotate by a second preset angle, so that the butted ceramic core is switched between at least two light source input ends.

The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. An optical fiber optical path switching apparatus, comprising:

the light source device comprises a shell (1), wherein a light source input end (2) and a light source output interface (3) are respectively arranged on the shell side surface (11) opposite to the shell (1); the number of the light source input ends (2) is at least two;

a first connecting rod (4), a second connecting rod (5) and a roller (6) with a groove are arranged in a shell inner cavity (12) of the shell (1), and the first connecting rod (4) and the second connecting rod (5) are parallel and are supported and fixed through a connecting rod supporting structure (7);

a ceramic core fixing piece (41) is arranged at one end, close to the light source input end (2), of the first connecting rod (4), a butting ceramic core (411) is fixed on the ceramic core fixing piece (41), and an output soft optical fiber (31) is connected between one end, close to the light source output interface (3), of the butting ceramic core (411) and the light source output interface (3);

a guide groove (61) is formed in the surface of the roller with the groove (6), a driving guide piece (51) is arranged at one end, close to the light source output interface (3), of the second connecting rod (5), and the driving guide piece (51) is connected with the guide groove (61) in a sliding mode;

a transmission shaft (8) penetrates through a straight line where central points of end faces of two sides of the grooved roller (6) are located, and one end, close to the light source input end (2), of the transmission shaft (8) is provided with a power input mechanism (9), so that when the transmission shaft (8) drives the grooved roller (6) to rotate, the driving guide piece (51) slides along the track of the guide groove (61) to drive the second connecting rod (5) to move in a translation mode;

a driving connecting piece (52) is arranged at one end, close to the light source input end (2), of the second connecting rod (5), and the driving connecting piece (52) is connected with the first connecting rod (4), so that the second connecting rod (5) can drive the first connecting rod (4) to move;

the power input structure (9) and the grooved roller (6) are provided with an incomplete gear (81) which is matched with a turnover gear (42) on the first connecting rod (4) to drive the ceramic core fixing piece (41) to rotate.

2. The optical fiber optical path switching apparatus according to claim 1,

the power input mechanism (9) includes: a stepping motor (91) and a transmission gear;

the transmission gear comprises a first transmission gear (92), a second transmission gear (93) and a double-bevel gear structure;

the double bevel gear structure comprises a horizontal bevel gear (94) and a vertical bevel gear (95);

the rotor of the stepping motor (91) is clamped with the circle center of the first transmission gear (92);

the first transmission gear (92) is meshed with the second transmission gear (93);

a connecting shaft (96) is clamped between the circle center position of the second transmission gear (93) and the circle center position of the horizontal bevel gear (94), and the connecting shaft (96) penetrates through the horizontal bevel gear (94) and is installed in a bearing shaft head (121) on the bottom surface of the inner cavity (12) of the shell;

one end of the transmission shaft (8) close to the light source input end (2) is clamped with the circle center of the vertical bevel gear (95), and the other end of the transmission shaft (8) is installed in a supporting shaft head (122) on the inner side wall of the inner cavity (12) of the shell.

3. The optical fiber optical path switching apparatus according to claim 2,

a limiting bulge (123) is arranged on the inner side wall;

a limiting baffle (62) is arranged on the end face of one side, close to the inner side wall, of the grooved roller (6);

the limiting protrusion (123) is positioned in the rotating track of the limiting baffle (62).

4. The optical fiber optical path switching apparatus according to claim 1,

the partial gear (81) has toothed portions (811) and non-toothed portions (812) arranged alternately.

5. The optical fiber optical path switching apparatus according to claim 1,

a circumferential flange (43) is arranged on the side wall of the first connecting rod (4), and the first connecting rod (4) penetrates through the overturning gear (42) through the circle center position of the overturning gear (42), so that the overturning gear (42) can drive the first connecting rod (4) to rotate when rotating;

a first limiting clamping block (44) and a second limiting clamping block (45) are fixed on the side wall of the first connecting rod (4), and the driving connecting piece (52) is clamped between the first limiting clamping block (44) and the second limiting clamping block (45).

6. The optical fiber optical path switching apparatus according to claim 1,

a limiting clamping groove (124) is fixed on the bottom surface of the inner cavity (12) of the shell, and the overturning gear (42) is located between the groove walls of the two sides of the limiting clamping groove (124).

7. The optical fiber optical path switching apparatus according to claim 1,

the light source input end (2) comprises a light source input interface (21) and a light source connecting post (22);

an input ceramic core is arranged in the light source input interface (21); the input ceramic core comprises a first input ceramic core (211) and a second input ceramic core (212);

the first input ceramic core (211) is arranged at one end, facing the outside of the shell (1), of the light source input interface (21); the second input ceramic core (212) is arranged at one end of the light source input interface (21) facing the shell inner cavity (12);

the light source butt joint column (22) comprises a first butt joint end (221) and a second butt joint end (222), and the first butt joint end (221) and the second butt joint end (222) are communicated;

an access ceramic core (223) is arranged in the first butt joint end (221), and an input soft optical fiber (224) is connected between the second input ceramic core (212) and the access ceramic core (223);

the second butt joint end (222) is provided with a butt joint bowl opening (225), and the opening diameter of the butt joint bowl opening (225) is gradually increased along the direction from the light source input end (2) to the light source output interface (3).

8. The optical fiber optical path switching apparatus according to claim 1,

an output ceramic core is arranged inside the light source output interface (3); the output ceramic cores comprise a first output ceramic core (32) and a second output ceramic core (33);

the first output ceramic core (32) is arranged at one end of the light source output interface (3) facing the outside of the shell (1); the second output ceramic core (33) is arranged at one end of the light source output interface (3) facing the shell inner cavity (12);

the output soft optical fiber (31) is connected between the second output ceramic core (33) and one end of the butt-joint ceramic core (411) close to the light source output interface (3).

9. The optical fiber optical path switching apparatus according to claim 1,

further comprising: a cover plate (13);

a sealing rubber gasket (14) and a connecting screw hole (15) are arranged at the connecting position of the cover plate (13) and the shell (1);

the surface of the cover plate (13) is provided with a touch display screen (131) for controlling the running state of the stepping motor (91);

a fixing flange (16) is arranged at the edge of the bottom surface of the shell (1), and a fixing screw hole (161) is formed in the fixing flange (16); the bottom surface of the shell is a surface opposite to the surface where the cover plate (13) is located.

10. An optical fiber optical path switching method for controlling the optical fiber optical path switching apparatus according to any one of claims 1 to 9 to perform optical fiber optical path switching, the optical fiber optical path switching method comprising:

receiving a switching control signal;

and controlling a stepping motor in the power input mechanism to rotate by a first preset angle according to the switching control signal, and driving the incomplete gear and the grooved roller to rotate by a second preset angle, so that the butted ceramic core is switched between at least two light source input ends.

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