CN220305516U - Tail adjusting structure and optical fiber quick connector - Google Patents

Abstract

The present disclosure relates to the field of optical fiber connectors, and more particularly, to a tail adjusting structure and an optical fiber quick connector for a quick connector; comprises a middle shell, a rotating piece and a fixed cap which are connected in sequence; the middle shell is coaxially arranged at the tail end of the quick connector; the rotating piece is rotatably arranged at the tail end of the middle shell along a rotating shaft, and the rotating shaft is perpendicular to the axis of the middle shell; the fixed cap is arranged at the tail end of the rotating piece and locks the rotating piece and the middle shell at an included angle. The utility model aims at providing a afterbody adjustment structure and quick connector for the optical cable can form bending angle in quick connector's terminal department, does not increase the distance, and optic fibre can not receive to pull the influence connection, and then makes the frame reduce the optical cable and pulls additional stress when arranging the cable, reduces the communication ageing risk; the stress of optical cable distortion can be greatly reduced after the tail of the embedded light outlet at the bottom of the light cat box is swung, and the communication failure risk is reduced.

Description

Tail adjusting structure and optical fiber quick connector

Technical Field

The application relates to the technical field of optical fiber connecting devices, in particular to a tail adjusting structure and an optical fiber quick connector.

Background

In the field of optical communication with rapid development, people improve the standard of living and rely on networks, so that the efficiency of optical fiber home entry is accelerated in various industries. In the process of fiber-optic service, the corresponding fiber-optic cable types are various, and the conventional 2.0mm optical cable, 3.0mm optical cable, common 2.0 x 3.0mm rubber-insulated wire optical cable (butterfly-shaped optical cable), 1.6 x 2.0mm low-friction rubber-insulated wire optical cable and the like are adopted. Fig. 1 shows a butterfly-shaped optical cable, which performs national communication industry standards: YD/T1997-2009, it is common to use 3x2mm with 2 metal reinforcing ribs of single/double optical fibers, the reinforcing ribs are mainly double 0.6mm diameter phosphatized steel wires, nonmetallic reinforcing ribs are rarely used, and the bending has larger elastic and straight stress.

In the optical fiber connection processing process, it is classified into a cold-junction type and a hot-junction type. Wherein, the cold junction is that after two optical fibers are cut, the two optical fiber cut surfaces are mechanically jointed by the refractive index matching paste; the thermal connection is to weld the optical fiber with one section of connector and the field optical fiber by an optical fiber welding machine.

The optical fiber quick connector is used in the optical fiber butt joint process no matter the optical fiber quick connector is in a cold joint type or a hot joint type, the tail part of the existing quick connector adopts a straight-through structure, and the tail end of the existing quick connector is not provided with a structure for bending an optical cable. When the rack is used for arranging the cable and the concave winding at the bottom of the cat, the cable needs to be wound, and the tail part of the cable adopts a quick connector with a straight-through structure, so that the cable which needs to be bent is easy to damage. Specific: when the bottom of the optical cat interface is sunken, the tail of the quick connector adopts a straight-through structure, and the twisting force of the butterfly-shaped optical cable is larger; the cable is bundled after turning at an angle of approximately 90 degrees, and the tail of the quick connector and the butterfly-shaped optical cable with the steel wire inside are subjected to larger stress after turning at an angle of 90 degrees.

Disclosure of Invention

An object of the present application is to provide a tail adjusting structure and a quick connector, so as to solve at least one technical problem.

In order to solve the above technical problems, a first aspect of the present application provides a tail adjusting structure for a quick connector; comprises a middle shell, a rotating piece and a fixed cap which are connected in sequence; the middle shell is coaxially arranged at the tail end of the quick connector; the rotating piece is rotatably arranged at the tail end of the middle shell along a rotating shaft, and the rotating shaft is perpendicular to the axis of the middle shell; the fixed cap is arranged at the tail end of the rotating piece and locks the rotating piece and the middle shell at an included angle.

Preferably, the outer side surface of the middle shell is in an axisymmetric structure, and first rotating structures are respectively arranged on the symmetric outer side surfaces; the rotating piece is provided with a double-fork arm structure at one end rotationally connected with the middle shell, and a second rotating structure matched with the first rotating structure is arranged on the double-fork arm structure.

Preferably, the first rotating structure is a round table or a round hole; the second rotating structure is a round hole or a round table corresponding to the first rotating structure.

Preferably, the middle shell is in a round tube shape or a right even side tube shape.

Preferably, the round table on the middle shell or the rotary piece is arranged on a slope surface with a reduced height towards one side of the joint.

Preferably, a plurality of bosses or recesses are uniformly arranged on the slope surface edge of the round table along the circumferential direction; and a plurality of concave or convex tables are correspondingly arranged at the edges of the round holes.

Preferably, a clearance gap is formed in the rotary piece at a position along the middle of the double fork arms; and an external thread fixed with the screw thread of the fixing cap is formed on the outer side surface of the clearance hole of the rotating piece.

A second aspect of the present application also provides a quick connector comprising a tail adjustment structure as described in any one of the preceding claims.

Preferably, the quick connector is a cold-connection quick connector or a hot-connection quick connector.

Compared with the prior art, the beneficial effect of this application lies in: the rotating piece is rotatably arranged at the tail end of the middle shell along the rotating shaft, the fixing cap locks the rotating piece and the middle shell at an included angle, so that the optical cable can form a bending angle at the tail end of the quick connector, the optical cable can be flexibly bent, the distance is not increased, the optical fiber cannot be pulled to affect connection, the additional stress of the optical cable pulling is reduced when the rack is used for arranging the cables, and the communication aging risk is reduced; the stress of optical cable distortion can be greatly reduced after the tail of the embedded light outlet at the bottom of the light cat box is swung, and the communication failure risk is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art butterfly-type optical cable of the present application;

FIG. 2 is a schematic diagram of a split state and a combined state of the present application;

FIG. 3 is a schematic view of a rotating member structure according to the present application;

FIG. 4 is a schematic view of the overall structure of a plurality of angles according to the present application;

fig. 5 is a schematic diagram of the overall structure of three included angles in the present application.

Wherein: 10. a quick connector; 20. a middle shell; 30. a rotating member; 40. a fixing cap; 21. round bench; 22. a slope; 23. a boss; 31. double fork arms; 32. a round hole; 33. a recess; 34. an external thread; 35. avoiding gaps.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "side," "front," "rear," and the like indicate an orientation or positional relationship based on installation, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.

It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.

For a further understanding of the utility model, features and efficacy of this application, the following examples are set forth to illustrate, together with the drawings, the detailed description of which follows:

examples

The tail part of the current quick connector adopts a straight-through structure, and the tail end of the current quick connector is not provided with a structure for bending the optical cable. When the rack is used for arranging the cable and the concave winding at the bottom of the cat, the cable needs to be wound, and the tail part of the cable adopts a quick connector with a straight-through structure, so that the cable which needs to be bent is easy to damage.

The present embodiment provides a tail adjusting structure for a quick connector 10, which includes a middle housing 20, a rotating member 30 and a fixing cap 40 connected in sequence.

The middle shell 20 is coaxially disposed at the end of the quick connector 10, specifically, the middle shell 20 may be integrally formed with the quick connector 10, or may be fixedly connected with the quick connector 10 by adopting a fixing structure, so long as the coaxial arrangement of the middle shell 20 and the quick connector 10 is satisfied.

In order to solve the problem that the current quick connector 10 is easy to damage the optical cable that needs to be bent, the present embodiment provides a technical solution that the rotating member 30 is rotatably disposed at the end of the middle housing 20 along a rotating shaft, and the rotating shaft is perpendicular to the axis of the middle housing 20.

After the optical cable is installed, the optical cable is led out from the tail end of the rotating piece 30, the optical cable is bent at an included angle with the axial direction of the quick connector 10 through the rotation of the rotating piece 30, after the quick connector 10 is inserted into the optical fiber adapter, the optical cable is abutted to generate a retreating distance under the action of the ceramic ferrule pressure, so that the optical cable is slightly bent, and meanwhile, the optical cable can be bent in a follow-up manner by matching with the technical scheme provided by the embodiment, and the connection performance of the optical cable is not influenced.

In order to lock the rotating member 30 and the middle shell 20 at a certain included angle, and further enable the optical cable to be guided out at a fixed included angle according to the requirement of the docking site, the embodiment is further provided with a fixing cap 40, and the fixing cap 40 is disposed at the end of the rotating member 30 and locks the rotating member 30 and the middle shell 20 at an included angle.

In the implementation process of bending the optical cable, since the optical cable needs to be led out from the middle position of the middle shell 20, the setting position of the rotating shaft between the middle shell 20 and the rotating member 30 needs to be designed on the outer side surface of the middle shell 20, in this embodiment, the outer side surface of the middle shell 20 is in an axisymmetric structure, the first rotating structures are respectively arranged on the symmetric outer side surface, and the connecting line between the two first rotating structures forms the rotating shaft of the rotating member 30. The end of the rotating member 30 rotationally connected with the middle shell 20 is in a double-fork arm 31 structure, and a second rotating structure matched with the first rotating structure is arranged on the double-fork arm 31 structure, specifically, the double-fork arm 31 of the rotating member 30 is rotatably arranged on two symmetrical outer sides of the middle shell 20 through two groups of rotating structures.

The outer side surface of the middle shell 20 may be a circular tube or a regular even-numbered tube, such as a regular quadrangle tube, a regular hexagon tube, a regular octagon tube, etc. The middle shell 20 adopting the structure is provided with the first rotating structures on each two opposite side surfaces, the four first rotating structures exist on the regular quadrilateral tube, and the four first rotating structures form two rotating shafts; six first rotating structures exist in the regular hexagonal pipe, and the six first rotating structures form three rotating shafts; by analogy, the tubular middle shell 20 can theoretically form countless rotating shafts, but the tubular middle shell 20 is adopted in combination with the volume of the first rotating structure and the connection stability between the first rotating structure and the rotating member 30, and the number of the first rotating structures is preferably not more than six.

The embodiment takes the middle shell 20 as a regular quadrilateral tube as an example for detailed description: four first rotating structures are arranged on the outer side face of the middle shell 20, two rotating shafts formed by the first rotating structures are perpendicular to each other, and are perpendicular to the axis of the middle shell 20, namely, two horizontal and vertical installation directions are arranged between the rotating piece 30 and the middle shell 20. The first rotating structure can be a round table or a round hole; the second rotating structure on the rotating member 30 is a circular hole or a circular table corresponding to the first rotating structure. As shown in the drawing, the first rotating structure of this embodiment is a circular table 21, and the second rotating structure is a circular hole 32 on a double fork arm 31.

In the assembly process, the double fork arms 31 of the rotating piece 30 are opened, the round table 21 of the middle shell 20 is led into the round holes 32 of the double fork arms 31, the assembly of the rotating piece 30 is completed, and the round table 21 and the round holes 32 are matched at the joint, so that the rotating piece 30 can rotate by taking the round table 21 as an axis, and the rotation angle can be adjusted at will.

In order to facilitate connection between the rotating member 30 and the middle shell 20, the slope 22 with the height reduced is arranged on the round table 21 on the middle shell 20 towards one side of the connection part, the double fork arms 31 can be gradually opened under the action of the slope 22, the round table 21 of the middle shell 20 is led into the round holes 32 of the double fork arms 31, the connection strength can be reduced due to the arrangement of the slope 22, and connection damage can be avoided.

Meanwhile, a plurality of bosses or recesses are uniformly arranged on the round table 21 of the middle shell 20 along the circumferential direction at the edge of the slope surface 22; on the circular hole 32 of the rotary member 30, a plurality of recesses or bosses are provided at the edges thereof, respectively. In the present embodiment, the boss 23 is provided on the circular table 21 of the middle housing 20, and the recess 33 is provided on the circular hole 32 of the rotating member 30. The boss 23 and the recess 33 are engaged with each other so that the rotary member 30 and the middle housing 20 can be coupled at a specific angle. The number of the bosses 23 can be two or more, and the number of the bosses 23 is more according to the requirement, and the more the number of the bosses 23 is, the more the adjustable included angle of the rotating member 30 is.

Specifically, the number of the circular truncated cones 21 is three as an example. When the round table 21 and the round hole 32 are embedded in the boss 23 at the lowest point of the slope surface 22, the rotating piece 30 and the middle shell 20 form a straight line at the moment, and the included angle is 0 degree at the moment; when the round table 21 and the round hole 32 are embedded in the other boss 23, the rotating member 30 forms an included angle with the middle shell 20, and the included angle is an included angle between the two bosses 23, for example, 0-90 degrees, 20 degrees, 30 degrees, 45 degrees and the like.

For the middle shell 20 adopting the regular quadrilateral tube and the three bosses 23, and taking an example that the included angle between the two bosses 23 is 20 degrees, five included angles between the rotating piece 30 and the middle shell 20 are respectively 0 degrees, the horizontal direction is-20 degrees, the horizontal direction is +20 degrees, the vertical direction is-20 degrees, the vertical direction is +20 degrees, the optical cable is provided with a straight line outgoing line and four-direction bending outgoing lines, and the five directions are outgoing lines, so that the adjustment is convenient.

The rotating member 30 and the middle housing 20 are rotated to a certain angle according to the field requirement of the optical cable, and at this time, the rotating member 30 and the middle housing 20 are locked by the fixing cap 40. Specifically, a clearance space 35 is provided on the rotating member 30 at a position along the middle of the double fork arm 31, and an external thread 34 screwed with the fixing cap 40 is formed on the outer side surface of the clearance space 35 of the rotating member 30. The arrangement of the clearance space 35 makes the length of the double fork arm 31 extend to two sides of the clearance space 35, namely, the position of the external thread 34 is connected with the double fork arm 31 into a whole, and when the position of the external thread 34 is compressed along the radial direction of the rotating member 30, the double fork arm 31 is also compressed.

After the fixing cap 40 is locked by the external thread 34, the double fork arms 31 are limited to be sprung, at this time, the round holes 32 of the double fork arms 31 are firmly sleeved at the round table 21 of the middle shell 20, at this time, the angle cannot be adjusted, and the rotating piece 30 is fixed on the middle shell 20 at a certain included angle.

After the fixing cap 40 is loosened through the external thread 34, the double fork arms 31 are opened at two sides, at the moment, the angle can be adjusted, and a little force can jump from one boss 23 to the other boss 23 by utilizing the elasticity of plastic and the gap of the rotating shaft, so that the adjustment of the tail outgoing line direction of the rotating member 30 is completed.

The present embodiment also provides a quick connector 10, including the above-mentioned tail adjusting structure, and the quick connector 10 may be a cold-connection quick connector 10 or a hot-connection quick connector 10.

At present, the butterfly-shaped optical cable internally has reinforcing ribs of 0.6mm phosphating steel wires, and the reinforcing ribs have larger stress after bending angles. The technical scheme that this embodiment provided utilizes quick connector to connect the time need peel 0.25mm diameter coating optic fibre and do the buckling, can nimble buckling this moment, and this kind of buckling does not increase the distance, and optic fibre can not receive to pull the influence connection.

The optical cable is flexibly bent, the distance is not increased, the optical fibers are not affected by pulling, and further, the additional stress of pulling the optical cable is reduced when the rack is used for arranging the cables, and the communication aging risk is reduced; the stress of optical cable distortion can be greatly reduced after the tail of the embedded light outlet at the bottom of the light cat box is swung, and the communication failure risk is reduced.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the present application in any way, and any simple modification, equivalent variations and modification made to the above embodiments according to the technical principles of the present application are within the scope of the technical solutions of the present application.

Claims (9)

1. A tail adjusting structure, characterized in that: for quick connectors; comprises a middle shell, a rotating piece and a fixed cap which are connected in sequence; the middle shell is coaxially arranged at the tail end of the quick connector; the rotating piece is rotatably arranged at the tail end of the middle shell along a rotating shaft, and the rotating shaft is perpendicular to the axis of the middle shell; the fixed cap is arranged at the tail end of the rotating piece and locks the rotating piece and the middle shell at an included angle.

2. The tail adjustment structure of claim 1, wherein: the outer side surface of the middle shell is of an axisymmetric structure, and first rotating structures are respectively arranged on the symmetric outer side surfaces; the rotating piece is provided with a double-fork arm structure at one end rotationally connected with the middle shell, and a second rotating structure matched with the first rotating structure is arranged on the double-fork arm structure.

3. The tail adjustment structure of claim 2, wherein: the first rotating structure is a round table or a round hole; the second rotating structure is a round hole or a round table corresponding to the first rotating structure.

4. The tail adjustment structure of claim 2, wherein: the middle shell is in a circular tube shape or a right-even side tube shape.

5. A tail adjustment structure as claimed in claim 3, wherein: the round table on the middle shell or the rotary piece is arranged on a slope surface with a height reduced towards one side of the joint.

6. The tail adjustment structure of claim 5, wherein: a plurality of bosses or recesses are uniformly arranged on the slope surface edge of the round table along the circumferential direction; and a plurality of concave or convex tables are correspondingly arranged at the edges of the round holes.

7. The tail adjustment structure of claim 2, wherein: a clearance gap is formed in the rotary piece at a position along the middle of the double fork arms; and an external thread fixed with the screw thread of the fixing cap is formed on the outer side surface of the clearance hole of the rotating piece.

8. An optical fiber quick connector, characterized in that: comprising a tail adjustment structure as claimed in any one of claims 1-7.

9. The fiber optic quick connector of claim 8, wherein: the optical fiber quick connector is a cold-connection quick connector or a hot-connection quick connector.