Optical fiber connector

Abstract

The utility model relates to the technical field of optical fiber equipment, and particularly discloses an optical fiber connector, which comprises a connector main body, an outer frame sleeve and a tail frame sleeve, and is characterized in that the front end of the connector main body is provided with an inner core connected with a mating part; the outer frame sleeve is sleeved on the connector main body in a sliding manner; the tail frame sleeve comprises a holding part and a connecting part connected with the outer frame sleeve, the connecting part extends forwards from the holding part, and the holding part is slidably arranged on the connector main body in a sleeving manner; and the connecting part is configured to apply a force far away from the matching piece to the outer frame sleeve when the tail frame sleeve is pulled in the direction far away from the inner core. The above arrangement avoids the problem of cable intertwining, and reduces the probability that the cable is broken at the connector main body.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber equipment, in particular to an optical fiber connector. Background Art

[0002] With the rapid development of information technology, the global demand for optical communication products is increasing, and the optical communication industry has gradually become one of the most important industries in the process of informatization. In the optical transmission system, the optical fiber connector has become an important component for connecting optical fibers. When in use, the connecting body of the optical fiber connector is inserted into the adapter to lock with the adapter, and the outer frame sleeve set on the connector body is pulled back to release the lock of the connector body and the adapter.

[0003] When the fiber optic connectors on the adapter are densely packed, the distance between each fiber optic connector is small, which makes it inconvenient to stretch your fingers to pull out the outer frame sleeve backwards. For this reason, some fiber optic connectors are provided with a pull rod, which is arranged on the outside of the connector body and one end is connected to the outer frame sleeve. The outer frame sleeve can be pulled backwards by pulling the other end of the pull rod, which is convenient to operate. However, a gap is formed between the pull rod and the connector body, causing the optical cables led out from adjacent fiber optic connectors to easily get stuck in the gap and become entangled, which is inconvenient to sort out and is easy to break the optical cables. Utility Model Content

[0004] The utility model aims to provide an optical fiber connector to solve the problem in the prior art that the optical cable is easily stuck in the gap between the pull rod and the connector body, which makes it difficult to organize the optical cable or even causes it to be broken.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connector body, wherein the front end of the connector body is provided with an inner core connected to a mating piece;

[0007] An outer frame sleeve, slidably sleeved on the connector body;

[0008] The tail frame cover comprises a gripping portion and a connecting portion connected to the outer frame cover, wherein the connecting portion extends forward from the gripping portion and is slidably mounted on the connector body; the connecting portion is configured to apply a force to the outer frame cover in a direction away from the mating piece when the tail frame cover is pulled in a direction away from the inner core.

[0009] As an optional technical solution for a fiber optic connector, the connecting portion includes a connecting arm extending forward from the holding portion and a hooking portion at the front end of the connecting arm, and the outer frame sleeve is provided with an abutting portion, which abuts against the hooking portion and is located at the rear side of the hooking portion.

[0010] As an optional technical solution for a fiber optic connector, the connecting arm is an elastic arm, the hook portion is perpendicular to the extension direction of the connecting arm, the outer frame sleeve is provided with an abutment groove, the rear side wall of the abutment groove forms at least a portion of the abutment portion, and the hook portion is located in the abutment groove.

[0011] As an optional technical solution of the optical fiber connector, the outer frame sleeve is provided with a first stop protrusion in the radial direction, and the rear side wall of the abutment groove and a part of the front wall of the first stop protrusion form the abutment portion.

[0012] As an optional technical solution of the optical fiber connector, the hooking portion is provided with a guide portion for guiding the hooking portion to enter the abutting groove, and the guide portion extends forward and is inclined to the axis of the outer frame sleeve.

[0013] As an optional technical solution for an optical fiber connector, a sliding groove is provided on the periphery of the connector body, and a reinforcing protrusion is provided at one end of the connecting arm close to the holding portion, and the reinforcing protrusion passes through the sliding groove.

[0014] As an optional technical solution of the optical fiber connector, a sliding groove is provided on the outer periphery of the connector body, and the connecting portion can be slidably inserted into the sliding groove; and / or

[0015] There are at least four connecting parts, and each of the connecting parts is arranged around the axis of the connector body.

[0016] As an optional technical solution for an optical fiber connector, the tail frame sleeve is provided with a pulling protrusion along the radial direction.

[0017] As an optional technical solution for an optical fiber connector, a second stop protrusion is convexly provided on the outer periphery of the connector body, and the tail frame sleeve is provided with a push portion, which is configured to apply a force to the second stop protrusion in a direction close to the mating piece when the tail frame sleeve is pushed in a direction close to the inner core.

[0018] As an optional technical solution of an optical fiber connector, the connector body includes a front frame sleeve, a middle frame sleeve and a crimping ring, and the front frame sleeve, the middle frame sleeve and the crimping ring are connected in sequence; wherein,

[0019] The inner core is arranged in the front frame sleeve; or

[0020] The tail frame is sleeved on the crimping ring and is loosely matched with the crimping ring.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides an optical fiber connector, which is provided with a connecting portion and a holding portion on a tail frame sleeve, and the holding portion is sleeved on a connector body, and the connecting portion is connected to an outer frame sleeve in such a way that when the tail frame sleeve is pulled backward, the connecting portion can apply a force to the outer frame sleeve away from a matching piece, thereby driving the outer frame sleeve to move backward, and then the connector body and the matching piece are unlocked. When multiple optical fiber connectors are installed in parallel on the matching piece, the tail frame sleeve can be directly pulled backward to move the outer frame sleeve backward, thereby improving the convenience of operation. Since the pull rod structure is omitted, that is, there is no gap between the pull rod and the connector, the problem of optical cable entanglement is avoided, the arrangement of the optical cable is convenient, and the probability of the optical cable being broken at the connector body is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the optical fiber connector in the embodiment of the utility model;

[0024] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0025] Figure 3 This is an exploded schematic diagram of an optical fiber connector in an embodiment of the utility model;

[0026] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0027] Figure 5 A cross-sectional view of an optical fiber connector in an embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of multiple optical fiber connectors and multiple adapters in an embodiment of the utility model.

[0029] In the figure:

[0030] 10. Fiber optic connector;

[0031] 20. Adapter;

[0032] 100, connector body; 110, front frame sleeve; 120, middle frame sleeve; 121, sliding groove; 122, second stop protrusion; 130, crimping ring; 140, inner core; 141, docking part;

[0033] 200, outer frame sleeve; 210, abutment portion; 220, abutment groove; 230, first stop protrusion;

[0034] 300, tail frame cover; 310, gripping portion; 311, pulling protrusion; 320, connecting portion; 321, connecting arm; 322, hooking portion; 3221, guiding portion; 323, reinforcing protrusion; 340, pushing portion. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] like Figures 1 to 6As shown, this embodiment provides a fiber optic connector 10 for connecting with a mating part, wherein the mating part includes an adapter 20. The fiber optic connector 10 includes a connector body 100 and an outer frame sleeve 200. The connector body 100 can be locked with the adapter 20, and the front end of the connector body 100 is provided with an inner core 140 that docks with the adapter 20, and the front end of the inner core 140 is provided with a docking portion 141. When the connector body 100 is inserted into the adapter 20, the inner core 140 remains fixed relative to the adapter 20, which is convenient for communication connection with other components. The outer frame sleeve 200 can be slidably sleeved on the connector body 100, and pulling the outer frame sleeve 200 backwards can unlock the fiber optic connector 10 and the adapter 20, so that the fiber optic connector 10 and the adapter 20 can be separated.

[0040] In some embodiments, the optical fiber connector 10 also includes a tail frame sleeve 300, which includes a gripping portion 310 and a connecting portion 320 connected to the outer frame sleeve 200, wherein the connecting portion 320 extends forward from the gripping portion 310, and the gripping portion 310 can be slidably mounted on the connector body 100; the connecting portion 320 is configured to apply a force to the outer frame sleeve 200 in a direction away from the adapter 20 when the tail frame sleeve 300 is pulled in a direction away from the inner core 140.

[0041] With this arrangement, when the tail frame cover 300 is pulled backward, the connecting portion 320 can apply a force to the outer frame cover 200 away from the adapter 20, thereby driving the outer frame cover 200 to move backward, and then the connector body 100 and the adapter 20 are unlocked. When multiple optical fiber connectors 10 are installed in parallel on the adapter 20, the tail frame cover 300 can be directly pulled backward to move the outer frame cover 200 backward, thereby improving the convenience of operation. Since the pull rod structure is omitted, that is, there is no gap between the pull rod and the connector, the problem of optical cable clamping is avoided, the arrangement of the optical cable is facilitated, and the probability of the optical cable being broken at the connector body 100 is reduced.

[0042] In order to smoothly pull the tail frame cover 300 backward, the tail frame cover 300 is provided with a pulling protrusion 311 along the radial direction. When the tail frame cover 300 is manually dragged backward, the pulling protrusion 311 provides a fulcrum, so that the tail frame cover 300 can smoothly move backward relative to the connector body 100. The pulling protrusion 311 is provided at the rear end of the gripping portion 310.

[0043] The outer periphery of the connector body 100 is provided with a sliding groove 121; the connecting portion 320 is slidably arranged in the sliding groove 121. This arrangement, on the one hand, helps to standardize the sliding route of the connecting portion 320 and prevent the tail frame cover 300 from rotating around the axis; on the other hand, it helps to achieve accurate alignment of the tail frame cover 300 and the connector body 100 during installation.

[0044] Furthermore, at least four connecting parts 320 are provided, and each connecting part 320 is arranged around the axis of the connector body 100. The cross-sectional outer contour of the tail frame cover 300 at the connecting part 320 is a rectangle, and the four connecting parts 320 are respectively arranged at the four corners of the rectangle, so that the outer frame cover 200 is evenly stressed, which helps to move backward smoothly.

[0045] In order to enable the connecting portion 320 to apply force to the outer frame sleeve 200, in some embodiments, the connecting portion 320 includes a connecting arm 321 extending forward from the gripping portion 310 and a hooking portion 322 at the front end of the connecting arm 321, and the outer frame sleeve 200 is provided with an abutting portion 210, which abuts against the hooking portion 322 and is located on the rear side of the hooking portion 322.

[0046] To facilitate assembly, in some embodiments, the connecting arm 321 is an elastic arm, the hook portion 322 is protruded outwardly from the connecting arm 321 along an extension direction perpendicular to the connecting arm 321, the outer frame sleeve 200 is provided with an abutting groove 220, the rear side wall of the abutting groove 220 forms at least a partial abutting portion 210, and the hook portion 322 is located in the abutting groove 220. In this embodiment, the hook portion 322 is integrally formed with the connecting arm 321. During assembly, the elastic arm bends and rebounds so that the hook portion 322 can enter the abutting groove 220 from outside the abutting groove 220, and the reliability of the abutment between the hook portion 322 and the abutting portion 210 can be ensured.

[0047] In the embodiment where the connecting arm 321 is a non-elastic arm, the hooking portion 322 and the connecting arm 321 are detachably connected to facilitate the hooking portion 322 to smoothly penetrate into the abutting groove 220 .

[0048] Under the premise that the thickness of the outer frame cover 200 is certain, in order to increase the area of ​​the abutment portion 210, in some embodiments, the outer frame cover 200 is provided with a first stop protrusion 230 along the radial direction, and the rear side wall of the abutment groove 220 and a part of the front wall of the first stop protrusion 230 form the abutment portion 210. The provision of the first stop protrusion 230 increases the area of ​​the abutment portion 210, improves the tensile strength of the outer frame cover 200, and reduces the probability of damage to the rear side wall of the abutment groove 220 during the backward dragging process; on the other hand, it can also provide a force point for the fingers when the outer frame cover 200 is dragged backward with the fingers.

[0049] To facilitate the hook portion 322 to enter the abutment groove 220 , in some embodiments, the hook portion 322 is provided with a guide portion 3221 for guiding the hook portion 322 to enter the abutment groove 220 . The guide portion 3221 is an inclined surface that extends forward and is inclined to the axis of the outer frame sleeve 200 .

[0050] Combination Figure 2As shown, in some embodiments, a reinforcing protrusion 323 is provided at one end of the connecting arm 321 close to the gripping portion 310, and the reinforcing protrusion 323 is inserted into the sliding groove 121, and the cross-sectional profile of the connecting arm 321 at the reinforcing protrusion 323 is consistent with the profile of the sliding groove 121. The reinforcing protrusion 323 not only improves the strength of the connecting arm 321 at the end, but also prevents the connecting arm 321 from shaking in the sliding groove 121, thereby improving the reliability of the connection between the hooking portion 322 and the abutting portion 210.

[0051] In other embodiments, the connection between the connecting portion 320 and the outer frame cover 200 can also be achieved by bonding or welding. It is only necessary to ensure that when the tail frame cover 300 is pulled backward, the connecting portion 320 can drive the outer frame cover 200 to move backward.

[0052] In order to improve the convenience of installing the optical fiber connector 10 into the adapter 20, in some embodiments, a second stop protrusion 122 is convexly provided on the outer periphery of the connector body 100; the tail frame sleeve 300 is provided with a push portion 340, and the push portion 340 is configured to apply a force in the direction close to the adapter 20 to the second stop protrusion 122 when the tail frame sleeve 300 is pushed in the direction close to the inner core 140, thereby driving the connector body 100 to move in the direction close to the adapter 20, and finally allowing the connector body 100 to be inserted into the adapter 20 and locked.

[0053] In some embodiments, the sliding groove 121 penetrates the second stop protrusion 122 to form a through-hole structure. During installation, the connecting portion 320 passes through the sliding groove 121 to send the hooking portion 322 at the front end of the connecting portion 320 to the abutting groove 220 .

[0054] Combination Figure 5 As shown, the connector body 100 includes a front frame sleeve 110, a middle frame sleeve 120 and a crimping ring 130, and the front frame sleeve 110, the middle frame sleeve 120 and the crimping ring 130 are connected in sequence; wherein, the inner core 140 is arranged in the front frame sleeve 110. The tail frame sleeve 300 is arranged in the crimping ring 130, and is in clearance fit with the crimping ring 130, so that the tail frame sleeve 300 and the crimping ring 130 can slide relative to each other. The front frame sleeve 110 and the middle frame sleeve 120 are snap-connected; the middle frame sleeve 120 and the crimping ring 130 are screwed, and the front frame sleeve 110, the middle frame sleeve 120 and the crimping ring 130 are relatively fixed in the front and rear directions. In this embodiment, the second stop protrusion 122 is arranged on the outer periphery of the middle frame sleeve 120.

[0055] During installation, first connect the middle frame sleeve 120 and the crimping ring 130, then put the tail frame sleeve 300 on the crimping ring 130, and make the connecting part 320 pass through the sliding groove 121, put the outer frame sleeve 200 on the connecting part 320, and make the hooking part 322 in the abutting groove 220, and finally connect the front frame sleeve 110 with the inner core 140 and the middle frame sleeve 120.

[0056] In this embodiment, the arrangement direction of the front frame cover 110, the middle frame cover 120, and the crimping ring 130 is taken as a reference, and the direction from the front frame cover 110 to the crimping ring 130 is the rear, and the opposite direction is the front.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An optical fiber connector, characterized in that: include: A connector body (100), wherein the front end of the connector body (100) is provided with an inner core (140) connected to a mating piece; An outer frame sleeve (200) is slidably sleeved on the connector body (100); The tail frame cover (300) comprises a gripping portion (310) and a connecting portion (320) connected to the outer frame cover (200), wherein the connecting portion (320) extends forward from the gripping portion (310), and the gripping portion (310) is slidably sleeved on the connector body (100); the connecting portion (320) is configured to apply a force to the outer frame cover (200) in a direction away from the mating piece when the tail frame cover (300) is pulled in a direction away from the inner core (140).

2. The optical fiber connector according to claim 1, characterized in that: The connecting portion (320) comprises a connecting arm (321) extending forward from the holding portion (310) and a hooking portion (322) at the front end of the connecting arm (321); the outer frame sleeve (200) is provided with an abutting portion (210), the abutting portion (210) abuts against the hooking portion (322) and is located at the rear side of the hooking portion (322).

3. The optical fiber connector according to claim 2, characterized in that: The connecting arm (321) is an elastic arm, and the hook portion (322) is perpendicular to the extension direction of the connecting arm (321); the outer frame sleeve (200) is provided with an abutment groove (220), the rear side wall of the abutment groove (220) forms at least a part of the abutment portion (210), and the hook portion (322) is located in the abutment groove (220).

4. The optical fiber connector according to claim 3, characterized in that: The outer frame sleeve (200) is provided with a first stop protrusion (230) in a radial direction, and the rear side wall of the abutment groove (220) and a part of the front wall of the first stop protrusion (230) form the abutment portion (210).

5. The optical fiber connector according to claim 3, characterized in that: The hook portion (322) is provided with a guide portion (3221) for guiding the hook portion (322) to enter the abutment groove (220), and the guide portion (3221) extends forward and is inclined to the axis of the outer frame sleeve (200).

6. The optical fiber connector according to claim 2, characterized in that: A sliding groove (121) is provided on the outer periphery of the connector body (100), and a reinforcing protrusion (323) is provided on one end of the connecting arm (321) close to the holding portion (310), and the reinforcing protrusion (323) is inserted into the sliding groove (121).

7. The optical fiber connector according to claim 1, characterized in that: The outer periphery of the connector body (100) is provided with a sliding groove (121), and the connecting portion (320) is slidably arranged in the sliding groove (121); and / or At least four connecting parts (320) are provided, and each connecting part (320) is arranged around the axis of the connector body (100).

8. The optical fiber connector according to claim 1, characterized in that: The tail frame sleeve (300) is provided with a pulling protrusion (311) protruding along the radial direction.

9. The optical fiber connector according to any one of claims 1 to 8, characterized in that: The outer periphery of the connector body (100) is provided with a second stop protrusion (122), and the tail frame sleeve (300) is provided with a push portion (340), and the push portion (340) is configured to apply a force in a direction close to the mating piece to the second stop protrusion (122) when the tail frame sleeve (300) is pushed in a direction close to the inner core (140).

10. The optical fiber connector according to any one of claims 1 to 8, characterized in that: The connector body (100) comprises a front frame sleeve (110), a middle frame sleeve (120) and a crimping ring (130), wherein the front frame sleeve (110), the middle frame sleeve (120) and the crimping ring (130) are connected in sequence; wherein: The inner core (140) is disposed in the front frame cover (110); or The tail frame sleeve (300) is arranged on the crimping ring (130) and is loosely matched with the crimping ring (130).

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