CN210243903U

CN210243903U - Multi-core optical fiber loop device

Info

Publication number: CN210243903U
Application number: CN201921100588.2U
Authority: CN
Inventors: Hui Liang; 梁汇
Original assignee: Optec Technology Ltd
Current assignee: Optec Technology Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-03
Anticipated expiration: 2029-07-12

Abstract

The utility model provides a multicore fiber return circuit ware, multicore fiber return circuit ware includes: a push-pull rod; the connecting heads are arranged on the push-pull rod, and each connecting head is internally provided with at least two insertion core mounting holes for accommodating optical fiber insertion cores; the upper shell is arranged on the push-pull rod and is in sliding connection with the push-pull rod; the lower shell is buckled on the upper shell in a buckling mode, and the lower shell and the upper shell are encircled to form a containing cavity for containing a wire body of an optical fiber; the at least two connectors are connected with the lower shell and the upper shell to communicate the insertion core mounting hole with the accommodating cavity. When having a plurality of fiber connection to connect the port on the fiber equipment, the utility model discloses only need a multicore return circuit ware can realize the optical circuit function of a plurality of ports, the operation is very convenient.

Description

Multi-core optical fiber loop device

Technical Field

The utility model relates to a return circuit ware field, in particular to multicore optical fiber return circuit ware.

Background

The optical fiber loop device is a small optical device, is used for connecting two optical paths of the same port on optical fiber equipment, can be used as a passive device for densely connecting optical fibers, and can transmit optical network signals of a test end from a transmitter end to a receiving end to form an optical signal receiving and transmitting loop so as to perform parallel connection test on the optical fibers and aging test on the optical fiber communication equipment. The optical fiber loop device in the prior art only has two cores and is only suitable for a single device interface, when a plurality of optical fiber connection interfaces are arranged on the optical fiber device, a plurality of loop devices are often required to be inserted into the interfaces, and the operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multicore optic fibre return circuit ware aims at solving when having a plurality of fiber connection interfaces on optical fiber equipment, often needs insert a plurality of return circuit wares, awkward problem on the interface.

In order to achieve the above object, the utility model provides a multicore fiber optic loop ware, multicore fiber optic loop ware includes: a push-pull rod; the connector is internally provided with a lock pin mounting hole and is arranged on the push-pull rod; the upper shell is arranged on the push-pull rod and is in sliding connection with the push-pull rod; the lower shell is buckled on the upper shell in a buckling mode, and the lower shell and the upper shell are encircled to form a containing cavity for containing a wire body of an optical fiber; the at least two connectors are connected with the lower shell and the upper shell to communicate the insertion core mounting hole with the accommodating cavity.

Optionally, all the connectors are arranged side by side.

Optionally, a buckle is arranged on the upper shell, a buckle position is arranged on the lower shell corresponding to the buckle, and the buckle position are matched with each other to form a buckle connection.

Optionally, one end of the lower shell, which is connected with the connector, is provided with a wire inlet groove, and a notch of the wire inlet groove faces the upper shell.

Optionally, two side edges of the lower shell are respectively provided with a wire clamping claw, and the wire clamping claws on the two side edges extend oppositely.

Optionally, a rib is arranged on the push-pull rod, a guide groove is arranged on the bottom surface of the upper shell, and the rib is matched with the guide groove to form sliding connection.

Optionally, a limiting block is arranged on the convex rib, a limiting hole is formed in the bottom of the guide groove, and the limiting block is embedded into the limiting hole to form matching.

Optionally, the lower casing and the upper casing are both provided with a support column, the support column of the lower casing is abutted to the upper casing, and the support column of the upper casing is abutted to the lower casing.

Optionally, the multi-core optical fiber loop device further comprises a connecting block, a cavity is arranged in the connecting block, one end of the connecting block is connected with the connecting head, the other end of the connecting block is connected with the upper shell and the lower shell, and the cavity is communicated with the insertion core mounting hole and the accommodating cavity.

Optionally, a handle is disposed at an end of the push-pull rod away from the connector.

The utility model discloses technical scheme is through setting up two at least connectors on the push-and-pull rod, has the lock pin mounting hole to be used for installing lock pin and optic fibre in the connector, simultaneously, still is provided with inferior valve and epitheca on the push-and-pull rod, wherein forms sliding connection between epitheca and the push-and-pull rod, and the inferior valve is connected for the buckle with the epitheca, surrounds behind inferior valve and the epitheca lock and forms one and be used for acceping the chamber of taking in of the optic fibre line body, and the connector is connected with inferior valve and epitheca in order to communicate the lock pin mounting hole and. The optical fiber is contained in a cavity body communicated with the containing cavity and the inserting core mounting hole after being contained in the multi-core optical fiber loop device, the connecting end of the optical fiber is inserted into the inserting core mounting hole, the wire body of the optical fiber is contained in the containing cavity formed by the lower shell and the upper shell, and at least two inserting core mounting holes used for containing the optical fiber are arranged in each connector, so that at least one optical fiber can be arranged in each connector, a plurality of optical fibers can be simultaneously contained in the multi-core optical fiber loop device provided with at least two connectors, when a plurality of optical fiber connecting interfaces are arranged on optical fiber equipment, the optical loop function of a plurality of ports can be realized by only one multi-core loop device, and the.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the multi-core optical fiber loop of the present invention;

fig. 2 is a schematic structural view of a lower shell of the multi-core optical fiber circuit device of the present invention;

fig. 3 is a schematic structural view of an upper shell of the multi-core optical fiber loop device of the present invention;

fig. 4 is another visual structural diagram of the upper case of the multi-core optical fiber loop device of the present invention;

fig. 5 is a schematic structural view of a front frame sleeve of the multi-core optical fiber loop device of the present invention;

fig. 6 is a schematic structural view of a rear frame sleeve of the multi-core optical fiber loop device of the present invention;

fig. 7 is a schematic structural view of a push-pull rod of the multi-core optical fiber loop device of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Push-pull rod	213	First accommodating cavity
110	Convex rib	214	Wire inlet
				111	Limiting block	300	Upper casing
102	Flanging	301	Limiting hole
				103	Handle (CN)	302	Buckle
200	Lower casing	303	Guide groove
				201	Wire inlet groove	310	Back frame cover
202	Support column	311	Second containing cavity
				203	Wire clamping claw	400	Connecting head
204	Buckle slot	500	Connecting block
				210	Front frame cover	600	Inserting core
211	First connecting end	700	Spring
				212	Second connecting end	800	Optical fiber

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a multicore fiber optic loop ware, multicore fiber optic loop ware includes: a push-pull rod 100; the optical fiber connector comprises at least two connectors 400, wherein the connectors 400 are arranged on the push-pull rod 100, and each connector 400 is internally provided with at least two ferrule mounting holes (not marked in the figure) for accommodating optical fiber ferrules 600; a lower housing 300, the lower housing 300 being disposed on the push-pull rod 100 and slidably coupled to the push-pull rod 100; the upper shell 200 is buckled 302 on the lower shell 300, and the upper shell 200 and the lower shell 300 surround to form a containing cavity (not marked in the figure) for containing a wire body of the optical fiber 800; the at least two connectors 400 are connected to the upper case 200 and the lower case 300 to communicate the ferrule mounting hole with the accommodating cavity.

In this embodiment, before the optical fiber 800 is installed in the multi-core loop device, the two connection ends are inserted into a ferrule 600, and then the optical fiber 800 is installed in the multi-core loop device together with the ferrule 600, wherein the ferrule 600 is inserted into the connection head 400 into the ferrule installation holes, and each ferrule installation hole can accommodate one ferrule 600. The connector 400 provided with at least two ferrule mounting holes can accommodate at least one optical fiber 800, and at least two optical fibers 800 can be simultaneously installed in the multi-core optical fiber loop provided with at least two connectors 400. When the optical fiber 800 equipment is provided with a plurality of optical fiber 800 connection ports, the optical loop function of the plurality of ports can be realized only by one multi-core loop device. Meanwhile, the push-pull rod 100 is further provided with an upper shell 200 and a lower shell 300, wherein the upper shell 200 and the push-pull rod 100 are in sliding connection, the lower shell 300 and the upper shell 200 are in buckling connection, the upper shell 200 and the lower shell 300 are buckled to form a containing cavity for containing an optical fiber body in a surrounding mode, and the connector 400 is connected with the upper shell 200 and the lower shell 300 to communicate the insertion core mounting hole and the containing cavity. After the optical fiber 800 is installed in the multi-core optical fiber loop device, the wire body of the optical fiber 800 is accommodated in the accommodating cavity defined by the upper shell 200 and the lower shell 300, a plurality of optical fibers 800 can be simultaneously installed in the multi-core optical fiber loop device provided with at least two connectors 400, when a plurality of optical fiber 800 connection interfaces are arranged on the optical fiber 800 equipment, a plurality of optical fibers 800 can be inserted into the connection interfaces by only one multi-core loop device, the operation is very convenient, and after the optical fiber 800 is installed in the multi-core optical fiber loop device, the wire body and the ferrule 600 are all positioned in the cavity, and no part exposed to the external environment exists, so that the optical fiber 800.

As shown in fig. 5-6, in another embodiment, the accommodating cavity for accommodating the optical fiber 800 may also be formed by a front frame cover 210 and a rear frame cover 310, the front frame cover 210 and the rear frame cover 310 are both disposed on the push-pull rod 100, and the front frame cover 210 and the rear frame cover 310 are connected by a snap connection, wherein the front frame cover 210 includes a first connection end 211 and a second connection end 212, the first connection end 211 is connected to the connector 400, the second connection end 212 is connected to the rear frame cover 310, a first accommodating cavity 213 is disposed in the front frame cover 210, a second accommodating cavity 311 is disposed in the rear frame cover 310, and the first accommodating cavity 213 is respectively communicated with the ferrule mounting hole and the second accommodating cavity 311 to form a cavity for accommodating the optical fiber 800.

The front frame cover 210 further has a wire inlet 214 on the wall thereof, the wire inlet 214 extends from the first connecting end 211 to the second connecting end 212, and the wire inlet 214 is communicated with the first receiving cavity 213. When the optical fiber 800 is installed in the optical fiber loop, the two ends of the optical fiber 800 are respectively inserted into the ferrule 600, and are communicated to the external optical fiber 800 interface through the ferrule 600, the two ends of the optical fiber 800 after the ferrule 600 is inserted are inserted into the ferrule installation holes, and at this time, the wire body of the optical fiber 800 is exposed outside. The wire inlet 214 facilitates a user to load the wire of the optical fiber 800 into the front frame sleeve 210 from the sleeve wall of the front frame sleeve 210, and avoids the wire from being bent greatly when being loaded into the front frame sleeve 210, thereby preventing the circuit in the optical fiber 800 from being damaged. In this embodiment, the wire inlet 214 extends from the start end of the first connection end 211 to the end of the second connection end 212, that is, the wire inlet 214 penetrates through both start and end ends of the front bezel 210, so as to load the wire body of the optical fiber 800 into the first receiving cavity 213.

The wire inlet 214 is bent from the first connection end 211 to the second connection end 212 to prevent the optical fiber 800 from escaping from the first receiving cavity 213. After the two ends of the optical fiber 800 are inserted into the ferrule mounting holes, the rear wire body is substantially U-shaped, but the open end of the U-shape is smaller than the bottom end, so the extension shape of the wire inlet 214 may be S-shaped or C-shaped to prevent the optical fiber 800 from separating from the first receiving cavity 213. It is understood that the extending shape of the wire inlet 214 is not limited to the above-listed shape as long as the optical fiber 800 is easily put into the first receiving cavity 213 and is not separated from the first receiving cavity 213.

Further, all the connectors 400 are arranged side by side.

All the connectors 400 are located at the same end of the push-pull rod 100 and are arranged on the push-pull rod 100 side by side, and after the connecting ends of the optical fibers 800 are inserted into the ferrule mounting holes, all the connecting ends of the optical fibers 800 are arranged into a straight line to adapt to optical fiber interfaces arranged in rows on optical fiber equipment, so that the optical fiber interfaces are convenient to connect.

In a preferred embodiment, the ferrule 600 is inserted into the ferrule mounting hole and a portion for connecting to the external optical fiber interface extends out of the ferrule mounting hole, and meanwhile, the spring 700 is disposed in the ferrule mounting hole, and when the ferrule 600 is inserted into the external optical fiber 800 interface, the spring 700 generates an outward elastic force on the ferrule 600, so that the ferrule 600 and the external optical fiber interface are firmly connected.

Optionally, a buckle 302 is disposed on the lower casing 300, a buckle position (not labeled in the figure) is disposed on the upper casing 200 corresponding to the buckle 302, and the buckle 302 and the buckle position are mutually matched to form a buckle connection.

The fastening position is a through hole formed on the upper case 200, and the fastener 302 of the lower case 300 slides into the fastening position to form a fastening. The side of epitheca 200 and inferior valve 300 all bends and has certain radian for after the side of epitheca 200 and the side butt of inferior valve 300, epitheca 200 and inferior valve 300 surround and are used for acceping the chamber of accomodating of the optic fibre line body.

As an embodiment, the upper case 200 is further provided with a fastening groove 204, the fastening groove 204 is located on a surface of the upper case 200 away from the lower case 300, and the fastening position is opened at a bottom of the fastening groove 204. On one hand, the buckle groove 204 is located in the buckle groove 204 after the buckle 302 penetrates out of the buckle position and does not protrude out of the surface of the upper shell 200, so that the situation that the buckle 302 is separated from the buckle position due to factors such as mistaken touch is effectively prevented, and on the other hand, when the upper shell 200 and the lower shell 300 are required to be separated, the buckle 302 can be pushed from the buckle groove 204 to be separated from the buckle position.

In an embodiment, one end of the upper case 200 connected to the connector 400 is provided with a wire inlet groove 201, and a notch of the wire inlet groove 201 faces the lower case 300.

In this embodiment, the wire inlet groove 201 is located at one end of the upper case 200, which is connected to the connector 400, the wire body of the optical fiber 800 may be inserted into the wire inlet groove 201 from the notch of the wire inlet groove 201, the cross section of the wire inlet groove 201 is "C" shaped, and one end of the connector 400, which is connected to the upper case 200, is inserted into the wire inlet groove 201 to form a fit with the wire inlet groove 201, so as to prevent the connector 400 from moving. It can be understood that the shape of the cross section of the wire groove is determined by the connecting end of the connecting head 400, when the connecting end of the connecting head 400 is circular, the cross section of the wire groove 201 is "C", and when the connecting end of the connecting head 400 is square, the cross section of the wire groove 201 is square, which is not an example here.

Specifically, two side edges of the upper case 200 are respectively provided with a wire clamping claw 203, and the wire clamping claws 203 on the two side edges extend oppositely.

Because the two connecting ends of the optical fiber 800 are inserted into the insertion core mounting holes, the line body of the optical fiber 800 loaded into the accommodating cavity is bent, in order to avoid the installation influence caused by the fact that the optical fiber 800 extends out of the side edge of the upper shell 200 before the upper shell 200 and the lower shell 300 are buckled, the two side edges of the upper shell 200 are respectively provided with the wire clamping claws 203, the optical fiber 800 is limited by the two wire clamping claws 203 after being loaded into the upper shell 200, and the risk of clamping the line body of the optical fiber 800 when the upper shell 200 and the lower shell 300 are buckled.

As shown in fig. 7, in an embodiment, the push-pull rod 100 is provided with a rib 110, the bottom surface of the upper casing 200 is provided with a guide groove 303, and the rib 110 and the guide groove 303 cooperate to form a sliding connection.

The push-pull rod can slide along the convex rib 110, the convex rib 110 arranged on the push-pull rod 100 plays a certain role in strengthening the push-pull rod 100, the reliability of the push-pull rod 100 is improved, and the push-pull rod can be limited from shaking left and right during work so as to ensure that the push-pull is smooth and straight.

Furthermore, a limiting block 111 is arranged on the convex rib 110, a limiting hole 301 is formed in the bottom of the guide groove 303, and the limiting block 111 is embedded into the limiting hole 301 to form matching.

The stopper 111 is located on the rib 110, and when the lower case 300 slides to a proper position, the stopper 111 is embedded into the stopper hole 301 to position the lower case 300, thereby preventing the lower case 300 from sliding. Meanwhile, the limiting block 111 is matched with the limiting hole 301, and then the push-pull rod 100 can be prevented from warping (when the push-pull rod 100 deforms to a certain degree, the limiting block 111 is limited by the side wall of the limiting hole 301), so that the push-pull deformation of the push-pull rod 100 is avoided, the service life of the push-pull rod 100 is prolonged, and the reliability is improved.

Further, the upper shell 200 and the lower shell 300 are both provided with a support column 202, the support column 202 of the upper shell 200 abuts against the lower shell 300, and the support column 202 of the lower shell 300 abuts against the upper shell 200.

When the multi-core optical fiber loop device is plugged into the external optical fiber 800, the upper shell 200 and the lower shell 300 are influenced by the holding force, the shell is extruded, the upper shell 200 and the lower shell 300 are prevented from deforming, the supporting columns 202 are arranged on the upper shell 200 and the lower shell 300, the supporting columns 202 of the upper shell 200 and the lower shell 300 extend towards opposite sides respectively, the supporting columns 202 of the upper shell 200 are abutted to the lower shell 300, and the supporting columns 202 of the lower shell 300 are abutted to the upper shell 200.

As an embodiment, the multi-core optical fiber loop device further comprises a connecting block 500, a cavity is arranged in the connecting block 500, one end of the connecting block 500 is connected with the connecting head 400, the other end of the connecting block is connected with the upper shell 200 and the lower shell 300, and the cavity is communicated with the ferrule mounting hole and the accommodating cavity; the end of the push-pull rod 100 facing away from the connector 400 is provided with a handle 103 for easy installation.

After the optical fiber 800 is connected with the ferrule 600, the optical fiber penetrates through the cavity of the connecting block 500 and is inserted into the ferrule mounting hole, one end of the connecting block 500 is connected with the connector 400, and the other end is connected with the upper shell 200 and the lower shell 300. One end of the connecting block 500, which connects the upper case 200 and the lower case 300, is cylindrical, and is inserted into the "C" -shaped wire-entering groove 201 of the upper case 200 to form a fit with the wire-entering groove 201, so as to prevent the connecting block 500 from bouncing.

In addition, two flanges 102 are oppositely arranged on the side surfaces of the push-pull rod 100, the two flanges 102 extend oppositely to limit the upper shell 200, and after the upper shell 200 is installed on the base plate 100, the two flanges 102 surround the upper shell 200 to prevent the upper shell 200 from being separated from the push-pull rod 100, so that the upper shell 200 and the connecting block 500 are ensured to be well butted.

The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A multi-core fiber optic circulator, comprising:

a push-pull rod;

the connector is internally provided with a lock pin mounting hole and is arranged on the push-pull rod;

the upper shell is arranged on the push-pull rod and is in sliding connection with the push-pull rod;

the lower shell is buckled on the upper shell in a buckling mode, and the lower shell and the upper shell are encircled to form a containing cavity for containing a wire body of an optical fiber;

the at least two connectors are connected with the lower shell and the upper shell to communicate the insertion core mounting hole with the accommodating cavity.

2. The multi-core optical fiber loop device as claimed in claim 1, wherein all the connectors are arranged side by side.

3. The multi-core optical fiber loop device as claimed in claim 1, wherein a buckle is provided on the upper case, a buckle position is provided on the lower case at a position corresponding to the buckle, and the buckle position are engaged with each other to form a buckle connection.

4. The multi-core optical fiber loop device as claimed in claim 1, wherein one end of the lower case connected to the connector is provided with a slot, and the slot of the slot faces the upper case.

5. The multi-core optical fiber loop device as claimed in claim 1, wherein two sides of the lower case are respectively provided with a wire clamping claw, and the wire clamping claws on the two sides extend oppositely.

6. The multi-core optical fiber loop device as claimed in claim 1, wherein the push-pull rod is provided with a rib, the bottom surface of the upper case is provided with a guide groove, and the rib and the guide groove are matched to form a sliding connection.

7. The multi-core optical fiber loop device as claimed in claim 6, wherein the rib is provided with a limiting block, the bottom of the guide groove is provided with a limiting hole, and the limiting block is embedded into the limiting hole to form a fit.

8. The multi-core optical fiber loop device as claimed in claim 1, wherein the lower case and the upper case are provided with support pillars, the support pillars of the lower case are abutted with the upper case, and the support pillars of the upper case are abutted with the lower case.

9. The multi-core optical fiber loop device as claimed in claim 1, further comprising a connecting block, wherein a cavity is formed in the connecting block, one end of the connecting block is connected to the connecting head, the other end of the connecting block is connected to the upper shell and the lower shell, and the cavity is communicated with the insertion core mounting hole and the receiving cavity.

10. The multi-core optical fiber loop device as claimed in claim 1, wherein a handle is provided at an end of the push-pull rod facing away from the connector.