Connector for outdoor pre-terminated optical cables

Abstract

The present invention discloses a connection device for outdoor pre-terminated optical cables, comprising: an optical fiber adapter, wherein a first plug hole is provided in the optical fiber adapter, wherein a movable first snap-in structure is provided in the first plug hole; an optical fiber connector, wherein a fixed second snap-in structure is provided on the optical fiber connector; a switch component, wherein the switch component is provided on the optical fiber connector, and the switch component is used to push the first snap-in structure; wherein the optical fiber connector is movably inserted into the optical fiber adapter through the first plug hole, and the first snap-in structure and the second snap-in structure are snap-connected. The operation is simple, the quality of the optical fiber is guaranteed after connection, and the working efficiency is high. The present invention is applied to the field of communication technology.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a connection device for outdoor pre-terminated optical cables. Background Art

[0002] In the process of building fiber-to-the-home, on-site quick connectors or fiber hot-melt methods are usually used to connect fiber optical paths. When using quick connectors to connect fiber optical paths on site, there are high requirements for the operator's skill level and the quality of fiber connection cannot be well guaranteed; when using fiber hot-melt methods to connect fiber optical paths, a fusion splicer is required, which is inconvenient to operate and inefficient. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The invention discloses a connection device for outdoor pre-terminated optical cables, which is simple to operate, has guaranteed quality after optical fiber connection and high working efficiency.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a connection device for outdoor pre-terminated optical cables, comprising:

[0007] An optical fiber adapter, wherein a first plug hole is provided in the optical fiber adapter, and a movable first buckle structure is provided in the first plug hole;

[0008] An optical fiber connector, wherein the optical fiber connector is provided with a fixed second buckle structure;

[0009] A switch component, the switch component is provided on the optical fiber connector, and the switch component is used to push the first buckle structure;

[0010] The optical fiber connector is movably inserted into the optical fiber adapter through the first plug hole, and the first buckle structure is buckled with the second buckle structure.

[0011] Further improved, one end of the first buckle structure is hinged in the first plug hole, the other end of the first buckle structure has a stroke that moves along the radial direction of the first plug hole, and a protrusion is provided on one side of the first buckle structure close to the middle of the first plug hole;

[0012] The second buckle structure is a first concave hole provided on the peripheral surface of the optical fiber connector, and the first concave hole and the protrusion are buckled in cooperation;

[0013] The switch piece is a sleeve structure, and the switch piece is movably sleeved on the optical fiber connector. A clamping block is provided at the end of the switch piece, and the clamping block is movably clamped on one side of the first buckle structure close to the middle of the first plug hole.

[0014] As a further improvement, chamfered surfaces are provided on both sides of the clamping block.

[0015] As a further improvement, the protrusion is an undercut, and the first recessed hole and the undercut are snap-fitted together.

[0016] Further improved, the optical fiber adapter is provided with an adapter inner core, a first guide structure is axially provided along the circumference of the adapter inner core, the optical fiber connector is provided with a second socket that cooperates with the adapter inner core, and a second guide structure that cooperates with the first guide structure is axially provided along the inner wall of the second socket.

[0017] As a further improvement, the movable sleeve on the optical fiber adapter is provided with a first dust cap, and the movable sleeve on the optical fiber connector is provided with a second dust cap.

[0018] As a further improvement, the first dust cap is also provided with a second snap-fit ​​structure, through which the first dust cap is movably connected to the optical fiber adapter; the second dust cap is also provided with a first snap-fit ​​structure, through which the second dust cap is movably connected to the optical fiber connector.

[0019] Further improved, a connection device for outdoor pre-terminated optical cables also includes a first connection line and a second connection line, one end of the first connection line is detachably connected to the optical fiber adapter, and the other end of the first connection line is detachably connected to the first dust cap;

[0020] One end of the second connecting line is detachably connected to the optical fiber connector, and the other end of the first connecting line is detachably connected to the second dust cap.

[0021] As a further improvement, a first groove is provided along the circumference of the peripheral surface of the optical fiber connector, and a first convex strip matching the first groove is provided along the circumference of the inner wall of the switch element, and the first convex strip has a rotational stroke along the circumference of the optical fiber connector in the first groove.

[0022] As a further improvement, a second groove is provided along the circumference of the circumference of the optical fiber connector, and a stopper cooperating with the second groove is provided along the circumference of the inner wall of the switch element, and an elastic element for resetting the switch element is provided between the stopper and the end of the second groove.

[0023] (III) Beneficial effects

[0024] Generally, during use, before the communication device leaves the factory, the fiber optic adapter is pre-installed on the communication device, the optical fiber between the communication device and the fiber optic adapter is connected, and the first snap-in structure is reserved outside. When it is necessary to connect the optical fiber to the communication device, the optical fiber connector connected to the optical fiber is inserted into the fiber optic adapter through the first jack, so that the optical fiber optical paths on the fiber optic adapter and the fiber optic connector are connected, and the first snap-in structure and the second snap-in structure are used to complete the mechanical locking and fixing, so that the quick connection can be completed. When the fiber optic connector is to be removed, the first snap-in structure is pushed by operating the switch member, and the mechanical locking between the second snap-in structure and the first snap-in structure is disconnected, so that the fiber optic connector can be pulled out of the fiber optic adapter, and the removal can be completed.

[0025] The connection device for outdoor pre-terminated optical cables of the present invention is easy to assemble and disassemble, can ensure the connection strength between the optical fiber adapter and the optical fiber connector, does not require the use of a hot melt machine, and has high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the connection between the optical fiber adapter, the first connecting line and the first dust cap according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Exploded diagram of

[0028] Figure 3 This is a schematic structural diagram of an optical fiber connector according to an embodiment of the present invention;

[0029] Figure 4 A schematic structural diagram of an optical fiber connector from another perspective according to an embodiment of the present invention;

[0030] Figure 5 An exploded view of an optical fiber connector, a switch component, and a second connecting line according to an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the connection between an optical fiber adapter, a first dust cap and a communication device according to an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the connection between an optical fiber adapter, an optical fiber connector and a communication device according to an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of a switch element according to an embodiment of the present invention;

[0034] Fig. 9 A schematic structural diagram of a switch element according to an embodiment of the present invention from another perspective;

[0035] Fig.10 The figure is a schematic diagram of the structure of an optical fiber adapter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Please refer to Figures 1 to 10 , a connection device for outdoor pre-terminated optical cables, comprising:

[0040] An optical fiber adapter 1, wherein a first plug hole 11 is provided in the optical fiber adapter 1, and a movable first buckle structure 2 is provided in the first plug hole 11;

[0041] An optical fiber connector 3, wherein a fixed second buckle structure 4 is provided on the optical fiber connector 3;

[0042] A switch member 5, wherein the switch member 5 is disposed on the optical fiber connector 3 and is used to push the first buckle structure 2;

[0043] The optical fiber connector 3 is movably inserted into the optical fiber adapter 1 through the first plug hole 11, and the first buckle structure 2 and the second buckle structure 4 are buckled and connected.

[0044] Generally, during use, before the communication device 9 leaves the factory, the optical fiber adapter 1 is pre-installed on the communication device 9, the optical fiber between the communication device 9 and the optical fiber adapter 1 is connected, and the first snap-on structure 2 is reserved outside. When it is necessary to connect the optical fiber to the communication device 9, the optical fiber connector 3 connected with the optical fiber is inserted into the optical fiber adapter 1 through the first jack 11, so that the optical fiber optical paths on the optical fiber adapter 1 and the optical fiber connector 3 are connected, and the mechanical locking and fixing are completed by the first snap-on structure 2 and the second snap-on structure 4, so that the quick connection can be completed. When the optical fiber connector 3 is to be removed, the first snap-on structure 2 is pushed by operating the switch member 5, and the mechanical locking between the second snap-on structure 4 and the first snap-on structure 2 is disconnected, so that the optical fiber connector 3 can be pulled out of the optical fiber adapter 1, and the removal can be completed.

[0045] The connection device for outdoor pre-terminated optical cables of this embodiment is easy to assemble and disassemble, can ensure the connection strength between the optical fiber adapter 1 and the optical fiber connector 3, does not require the use of a hot melt machine, and has high work efficiency. It is worth noting that the optical fiber connector 3 can also be installed on the communication device 9 in advance, the switch 5 and the second buckle structure 4 are reserved outside, and the optical fiber adapter 1 is used to connect the optical fiber connector 3.

[0046] In this embodiment, as a further improvement of the above technical solution, specifically, one end of the first buckle structure 2 is hinged in the first plug hole 11, the other end of the first buckle structure 2 has a stroke that moves radially along the first plug hole 11, and a protrusion is provided on one side of the first buckle structure 2 close to the middle of the first plug hole 11; Fig.10 As shown, the other end of the first buckle structure 2 is along Fig.10 Rotate in the direction indicated by the hollow double-headed arrow.

[0047] The second snap-fit ​​structure 4 is a first recessed hole 41 provided on the peripheral surface of the optical fiber connector 3, and the first recessed hole 41 and the protrusion snap-fit; further preferably, the protrusion is an undercut 21, and the first recessed hole 41 and the undercut 21 snap-fit. Fig.10 As shown, the undercut 21 is a hook-shaped structure, and the undercut 21 can be hooked in the first recessed hole 41 , so that the optical fiber connector 3 and the optical fiber adapter 1 are connected.

[0048] The switch member 5 is a sleeve structure, and the switch member 5 is movably sleeved on the optical fiber connector 3. The end of the switch member 5 is provided with a clamping block 51, and the clamping block 51 is movably clamped on one side of the first clamping structure 2 close to the middle of the first plug hole 11. When the switch member 5 is rotated and the clamping block 51 can be clamped into the side of the first clamping structure 2 close to the middle of the first plug hole 11, the clamping block 51 can cushion the first clamping structure 2, so that the second clamping structure 4 and the first clamping structure 2 are disconnected, so that the optical fiber connector 3 can be pulled out; on the contrary, when the switch member 5 is in the initial position, the first clamping structure 2 is not cushioned, so the first clamping structure 2 and the second clamping structure 4 can be connected by clamping. Specifically, the number of the first clamping structure 2 is four, and they are evenly distributed along the circumference of the first plug hole 11. The first clamping structure 2 and the second clamping structure 4 of this embodiment are convenient to connect and simple to operate. Correspondingly, the number of the clamping blocks 51 and the number of the second clamping structures 4 are also four.

[0049] In this embodiment, as a further improvement of the above technical solution, chamfered slopes 52 are provided on both sides of the clamping block 51. The chamfered slopes 52 are for the clamping block 51 to smoothly clamp into the first buckle structure 2 near the middle of the first plug hole 11.

[0050] In this embodiment, as a further improvement of the above technical solution, the optical fiber adapter 1 is provided with an adapter inner core 6, and a first guide structure 61 is axially provided along the circumference of the adapter inner core 6. The optical fiber connector 3 is provided with a second plug hole 31 that matches the adapter inner core 6, and a second guide structure 32 that matches the first guide structure 61 is axially provided along the inner wall of the second plug hole 31. Specifically, the first guide structure 61 is a guide groove axially provided along the circumference of the adapter inner core 6, and the second guide structure 32 is a guide bar axially provided along the inner wall of the second plug hole 31. Of course, it can also be the other way around, that is, the first guide structure 61 is a guide bar, and the second guide structure 32 is a guide groove. The first guide structure 61 and the second guide structure 32 have a guiding function, so that the connection between the optical fiber adapter 1 and the optical fiber connector 3 is faster.

[0051] In this embodiment, as a further improvement of the above technical solution, the optical fiber adapter 1 is provided with a first dust cap 12 on the movable sleeve, and the optical fiber connector 3 is provided with a second dust cap 33 on the movable sleeve. When the optical fiber adapter 1 and the optical fiber connector 3 are not connected, the first dust cap 12 has a protective effect on the optical fiber adapter 1 to prevent dust from sticking to its port; the second dust cap 33 has a protective effect on the optical fiber connector 3 to prevent dust from sticking to its port. Before the optical fiber adapter 1 and the optical fiber connector 3 are connected, the first dust cap 12 and the second dust cap 33 need to be removed.

[0052] In the present embodiment, as a further improvement of the above technical solution, a second snap-fit ​​structure 4 is also provided on the first dust cap 12 (the second snap-fit ​​structure 4 on the first dust cap 12 is not shown in the figure), and the first dust cap 12 is movably connected to the optical fiber adapter 1 through the second snap-fit ​​structure 4; a first snap-fit ​​structure 2 is also provided on the second dust cap 33 (the first snap-fit ​​structure 2 on the second dust cap 33 is not shown in the figure), and the second dust cap 33 is movably connected to the optical fiber connector 3 through the first snap-fit ​​structure 2.

[0053] In this embodiment, as a further improvement of the above technical solution, a connection device for outdoor pre-terminated optical cables also includes a first connection line 7 and a second connection line 8, one end of the first connection line 7 is detachably connected to the optical fiber adapter 1, and the other end of the first connection line 7 is detachably connected to the first dust cap 12;

[0054] One end of the second connecting wire 8 is detachably connected to the optical fiber connector 3, and the other end of the first connecting wire 7 is detachably connected to the second dust cap 33. The end of the optical fiber adapter 1 close to the communication device 9 is provided with a thread and a locking nut 13 sleeved on the thread, and the two ends of the first connecting wire 7 are respectively provided with a fixing ring, and the connecting ring at one end of the first connecting wire 7 is sleeved on the optical fiber adapter 1 and locked by the locking nut. The connecting ring at the other end of the first connecting wire 7 is sleeved between the first dust cap 12 and the optical fiber adapter 1. The structure and connection principle of the second connecting wire 8 are the same as those of the first connecting wire 7, except that the second connecting wire 8 is used on the optical fiber connector 3, which will not be repeated here. The first connecting wire 7 and the second connecting wire 8 can prevent the first dust cap 12 and the second dust cap 33 from falling off. After the optical fiber adapter 1 and the optical fiber connector 3 are connected, the first connecting wire 7 and the second connecting wire 8 can be removed, which will not affect the normal use and overall appearance of the optical fiber adapter 1 and the optical fiber connector 3.

[0055] In this embodiment, as a further improvement of the above technical solution, a first groove 34 is provided along the circumference of the peripheral surface of the optical fiber connector 3, and a first convex strip 53 cooperating with the first groove 34 is provided along the circumference of the inner wall of the switch member 5, and the first convex strip 53 has a stroke for rotating along the circumference of the optical fiber connector 3 in the first groove 34. Through the definition of the first groove 34 and the first convex strip 53, the switch member 5 can rotate along the circumference of the optical fiber connector 3 and prevent the switch member 5 from falling off.

[0056] In this embodiment, as a further improvement of the above technical solution, a second groove 35 is further provided along the circumference of the peripheral surface of the optical fiber connector 3, and a stopper (not shown in the figure) matched with the second groove 35 is further provided along the circumference of the inner wall of the switch member 5, and an elastic element 54 for resetting the switch member 5 is abutted between the stopper and the end of the second groove 35. Specifically, the elastic element 54 is a spring, and preferably, the number of the second groove 35, the stopper and the elastic element 54 are all two, and are evenly distributed along the circumference of the optical fiber connector 3 or the switch member 5.

[0057] like Figure 5 As shown, the optical fiber connector 3 of this embodiment also includes a ferrule 36, a tail handle 37, a standard SC inner frame sleeve 38, a fixing tube 39, a metal round tube 391 embedded outside the fixing tube 39, a metal cable compression round tube 392, an optical cable outer sheath 393, a heat shrinkable sleeve 394 and related accessories. Of course, the optical fiber connector 3 of this embodiment can also adopt other styles or types, but other types or styles of optical fiber connectors 3 can also adopt the second buckle structure 4 of this embodiment.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A connection device for outdoor pre-terminated optical cables, characterized in that: include: An optical fiber adapter, wherein a first plug hole is provided in the optical fiber adapter, and a movable first buckle structure is provided in the first plug hole; An optical fiber connector, wherein the optical fiber connector is provided with a fixed second buckle structure; A switch component, the switch component is provided on the optical fiber connector, and the switch component is used to push the first buckle structure; Wherein, the optical fiber connector is movably inserted into the optical fiber adapter through the first plug hole, and the first buckle structure is buckled with the second buckle structure; One end of the first buckle structure is hinged in the first plug hole, the other end of the first buckle structure has a travel along the radial direction of the first plug hole, and a protrusion is provided on one side of the first buckle structure close to the middle of the first plug hole; The second buckle structure is a first concave hole provided on the peripheral surface of the optical fiber connector, and the first concave hole and the protrusion are buckled in cooperation; The switch piece is a sleeve structure, and the switch piece is movably sleeved on the optical fiber connector. A clamping block is provided at the end of the switch piece, and the clamping block is movably clamped on one side of the first buckle structure close to the middle of the first plug hole.

2. The connection device for outdoor pre-terminated optical cables according to claim 1, characterized in that: The two sides of the clamping block are provided with chamfered inclined surfaces.

3. The connection device for outdoor pre-terminated optical cables according to claim 1, characterized in that: The protrusion is an undercut, and the first concave hole and the undercut are snap-fitted.

4. The connection device for outdoor pre-terminated optical cables according to claim 1, characterized in that: The optical fiber adapter is provided with an adapter core, and a first guide structure is axially provided along the circumference of the adapter core. The optical fiber connector is provided with a second jack that cooperates with the adapter core, and a second guide structure that cooperates with the first guide structure is axially provided along the inner wall of the second jack.

5. The connecting device for outdoor pre-terminated optical cables according to any one of claims 1 to 4, characterized in that: The movable sleeve on the optical fiber adapter is provided with a first dust cap, and the movable sleeve on the optical fiber connector is provided with a second dust cap.

6. The connection device for outdoor pre-terminated optical cables according to claim 5, characterized in that: The first dust cap is also provided with a second snap-fit ​​structure, through which the first dust cap is movably connected to the optical fiber adapter; the second dust cap is also provided with a first snap-fit ​​structure, through which the second dust cap is movably connected to the optical fiber connector.

7. The connection device for outdoor pre-terminated optical cables according to claim 5, characterized in that: It also includes a first connecting wire and a second connecting wire, one end of the first connecting wire is detachably connected to the optical fiber adapter, and the other end of the first connecting wire is detachably connected to the first dust cap; One end of the second connecting line is detachably connected to the optical fiber connector, and the other end of the first connecting line is detachably connected to the second dust cap.

8. The connecting device for outdoor pre-terminated optical cables according to any one of claims 1 to 4, characterized in that: A first groove is arranged along the circumference of the peripheral surface of the optical fiber connector, and a first convex strip matching the first groove is arranged along the circumference of the inner wall of the switch element. The first convex strip has a rotation stroke along the circumference of the optical fiber connector in the first groove.

9. The connection device for outdoor pre-terminated optical cables according to claim 8, characterized in that: A second groove is also provided along the circumference of the circumference of the optical fiber connector, and a stopper matched with the second groove is also provided along the circumference of the inner wall of the switch. An elastic element for resetting the switch is abutted between the stopper and the end of the second groove.

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