Optical fiber connector

Abstract

An optical fiber connector includes a connector body; the elastic spring bolt component comprises a nesting part, an extending part and an elastic arm; the nesting part is used for being detachably nested at the rear part of the connector main body; the extension part is connected with the nesting part, is attached to the outer surface of the connector main body and extends forwards; the elastic arm is arranged at the front end of the extension part and gradually tilts backwards, and a first fixing part is arranged at the tilted end part of the elastic arm; the elastic spring bolt component is detachably arranged on the connector main body, the elastic spring bolt component has a first polarity when the elastic arm is located on a first side of the connector main body, and the elastic spring bolt component has a second polarity when the elastic arm is arranged on the other side opposite to the first side; second fixing parts are arranged on the two sides, corresponding to the first polarity and the second polarity, of the tail sleeve; the two ends of the connecting piece are detachably arranged on the elastic arm and the tail sleeve through a first fixing part and a second fixing part respectively, the tail sleeve and the elastic arm are connected together through the connecting piece, and when the tail sleeve moves backwards, the elastic arm is pulled to press downwards through the connecting piece.

Description

Technical Field

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

[0002] Optical fiber connectors, especially dual-core optical fiber connectors, generally require polarity conversion. Existing polarity conversion solutions generally require rotating the tail sleeve or the front connector body, which results in a complex structure. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an optical fiber connector, which is implemented by the following technical solutions:

[0004] An optical fiber connector, comprising:

[0005] A connector body, the connector body having a front end and a rear end for connecting to an optical cable; the interior of the connector body is used to fix the optical fiber;

[0006] An elastic locking tongue component, the elastic locking tongue component comprises a nesting portion, an extending portion and an elastic arm; the nesting portion is used to be detachably nested in the rear portion of the connector body; the extending portion is connected to the nesting portion and extends forward in contact with the outer surface of the connector body; the elastic arm is arranged at the front end of the extending portion and gradually tilts backward, and a first fixing portion is arranged at the tilted end of the elastic arm; the elastic locking tongue component is detachably arranged on the connector body, and when the elastic arm is located on a first side of the connector body, it is of a first polarity, and when it is arranged on the other side opposite to the first side, it is of a second polarity;

[0007] A tail sleeve, which is arranged at the tail of the connector body and can move forward and backward relative to the connector body, and the tail sleeve is provided with a second fixing portion on both sides corresponding to the first polarity and the second polarity;

[0008] A connecting piece, both ends of which are detachably arranged on the elastic arm and the tail sleeve through the first fixing part and the second fixing part respectively, and the tail sleeve and the elastic arm are connected together through the connecting piece. When the tail sleeve moves backward, the elastic arm is pulled downward by the connecting piece.

[0009] Preferably, the extension portion is provided with a limiting guide column, and the connecting member is provided with a sliding groove;

[0010] The connecting piece is sleeved on the limiting guide column through the sliding groove, and the part of the connecting piece between the second fixing part and the limiting guide column is arranged along the plane of the connector body and the tail sleeve. After passing through the limiting guide column, the connecting piece is inclined upward and connected to the end of the elastic arm.

[0011] Preferably, the connecting piece is made of flexible material.

[0012] Preferably, a card block is provided at a position close to the front portion of the bottom surface of the extension portion, and a bayonet for cooperating with the card block is provided on the connector body.

[0013] Preferably, the connector body is a dual-core LC type connector.

[0014] Preferably, two of the elastic locking tongue components and the connecting member are provided, and second fixing portions are provided at positions of the tail sleeve corresponding to the first polarity and the second polarity.

[0015] Preferably, the extension portion is provided with a limiting groove, and the connecting member can be slidably arranged in the limiting groove forward and backward;

[0016] The portion of the connecting member between the second fixing portion and the limiting groove is arranged along the plane of the connector body and the tail sleeve. After passing through the limiting groove, the connecting member is inclined upward and connected to the end of the elastic arm.

[0017] Preferably, the extension portion is provided with a limiting slide groove, and the limiting slide groove is provided with an opening communicating with the interior of the limiting slide groove, and the opening is used for installing the connecting piece.

[0018] Preferably, the nesting portion is nested in the connector body from the front end to the rear.

[0019] Preferably, the nesting portion has a notch portion, and the connector body has a socket, and the notch portion cooperates with the socket to allow the nesting portion to be inserted into the connector body from the outside.

[0020] The beneficial effects of the utility model: the elastic locking tongue component of the optical fiber connector provided by the utility model can be removed from the connector body. When polarity conversion is required, it is only necessary to convert the elastic arm of the elastic locking tongue component to the other side to correspond to another polarity. The structure is simple and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the structure of the connector body of the present patent in the exploded state is shown;

[0022] Figure 2 The schematic diagram of the structure of the optical fiber connector of the present invention in the exploded state is shown;

[0023] Figure 3 A schematic diagram showing the structure of the elastic locking tongue component of the first embodiment of the present invention is shown;

[0024] Figure 4A schematic diagram showing the structure of the elastic locking tongue component of the second embodiment of the present invention is shown;

[0025] Figure 5 The schematic diagram of the structure of the optical fiber connector of the present invention is shown;

[0026] Figure 6 The schematic diagram of the structure of the patent when the limiting slide groove is used is shown;

[0027] Figure 7 A schematic structural diagram is shown when the tail sleeve of the optical fiber connector of the present patent is pulled and the elastic arm is pressed down. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figures 1 to 7 As shown, a fiber optic connector, this patent is mainly used for dual-core LC connectors, so this patent is mainly described with dual-core LC connectors. Those skilled in the art can know that it can also be applied to single-core LC connectors or multi-core LC connectors.

[0030] like Figure 1 As shown, the connector body 1 has a front end for data exchange and a rear end for accessing the optical cable, and the interior of the connector body 1 is used to fix the optical fiber. The front end of the connector body 1 mainly includes two LC type connectors 2, and the rear end is combined together through a joint 3. The optical cable enters from the rear end of the joint, and the optical fiber inside the optical cable is fixed by the LC type connector. There is a limit block 4 on the joint 3, and the limit block 4 is used to cooperate with the sliding port 6 on the tail sleeve 5. The main body of the tail sleeve 5 is sleeved on the joint 3, and the limit block 4 cooperates with the sliding port 6 so that the tail sleeve 5 can be movably arranged on the connector body 1 forward and backward. The connector body 1 and the tail sleeve 5 are rectangular as a whole, and have two relatively wide faces, namely the top face and the bottom face. In the direction of the top face and the bottom face, the tail sleeve 5 is provided with a second fixing portion on both faces, and the second fixing portion here includes a clamping block 7.

[0031] The elastic locking tongue component 8 includes a nesting portion 9, an extension portion 10 and an elastic arm 11. The nesting portion 9 is used to be detachably nested in the rear of the connector body 1. The extension portion 10 is connected to the nesting portion 9 and extends forward in contact with the outer surface of the connector body 1. The elastic arm 11 is arranged at the front end of the extension portion 10 and gradually tilts backward, and a first fixing portion 12 is arranged at the tilted end of the elastic arm 11. The elastic locking tongue component 8 is detachably arranged on the connector body 1, specifically, it is sleeved on the LC type connector 2.

[0032] like Figure 4As shown, the nesting portion 9 is combined with the LC type connector 2 in such a way that the nesting portion 9 is frame-shaped and the LC type connector 2 has a flat surface, so that the nesting portion 9 is nested in the connector body 1 from the front end to the rear, or as shown in FIG. Figure 3 As shown, a holder 13 is provided near the rear end of the connector body 1, and the nesting portion 9 is frame-shaped as a whole and has a notch 14. The notch 14 cooperates with the holder 13 to allow the nesting portion to be inserted into the connector body 1 from the outside.

[0033] The elastic locking tongue component 8 and the tail sleeve 5 can be connected by a hard connector or a flexible connector. Figure 4 and Figure 5 As shown, a limit guide column 15 is provided on the extension portion 10, and a slide groove 17 is provided on the connector 16. The limit guide column 15 is configured as a column extending laterally, so that the slide groove 17 can be inserted into the limit guide column 15. The portion of the connector 16 between the block 7 of the second fixing portion and the limit guide column 15 is arranged along the plane of the connector body 1 and the tail sleeve 5. After passing through the limit guide column 15, the connector 16 is inclined upward and connected to the end of the elastic arm 11, that is, connected to the first fixing portion 12 and fixed. Or, as Figure 6 As shown, a limiting slide groove 18 is provided on the extension portion 10 , and an opening 19 communicating with the interior of the limiting slide groove 18 is provided on the limiting slide groove 18 . The limiting slide groove 18 is configured to be through-connected from front to back, and the opening 19 is used to insert the connector 16 .

[0034] In order to ensure the stability of the extension part 10 being attached to the connector body 1, a card block 20 is provided at the bottom surface of the extension part near the front, and a bayonet 21 is provided on the connector body 1 to cooperate with the card block 20. In this way, when the elastic locking tongue component 8 is installed on the connector body 1, the card block 20 is embedded in the bayonet 21 to ensure that the front end of the extension part 10 will not shake.

[0035] The front end of the connecting member 16 is detachably fixed to the raised end of the elastic arm 11 through the first fixing portion 12, and the rear end of the connecting member 16 is detachably fixed to the tail sleeve 5 through the clamping block 7 of the second fixing portion. The detachable fixing method of the first fixing portion 12 and the second fixing portion is mainly through the matching method of the clamping block and the bayonet.

[0036] Since it is a dual-core LC type connector, two elastic locking tongue components 8 and connecting pieces 16 are provided, and two second fixing parts are provided at positions corresponding to the first polarity of the top surface and the second polarity of the bottom surface of the tail sleeve 5. When the elastic arm 11 is located on the first side of the connector body, it is the first polarity, and when it is located on the other side opposite to the first side, it is the second polarity.

[0037] During use, if polarity conversion is required, the two ends of the connector 16 are removed from the first fixing portion and the second fixing portion, and then the elastic locking tongue component 8 is removed from the connector body 1, the elastic arm 11 is placed on the other side and the elastic locking tongue component 8 is re-fixed to the connector body 1. Since the limiting guide column 15 or the limiting slide groove 18 is also provided on the elastic locking tongue component 8, and the second fixing portion is provided on both sides of the tail sleeve 5, the polarity conversion can be achieved by simply installing the connector 16 into the limiting guide column 15 or the limiting slide groove 18, and then re-combining the two ends with the first fixing portion and the second fixing portion.

Claims

1. An optical fiber connector, characterized in that include: A connector body, the connector body having a front end and a rear end for receiving an optical cable; The interior of the connector body is used to fix the optical fiber; An elastic locking tongue component, the elastic locking tongue component comprises a nesting portion, an extension portion and an elastic arm; the nesting portion is used to be detachably nested in the rear portion of the connector body; the extension portion is connected to the nesting portion and extends forward in contact with the outer surface of the connector body; the elastic arm is arranged at the front end of the extension portion and gradually tilts backward, and a first fixing portion is arranged at the tilted end of the elastic arm; the elastic locking tongue component is detachably arranged on the connector body, and when the elastic arm is located on a first side of the connector body, it is of a first polarity, and when it is arranged on the other side opposite to the first side, it is of a second polarity; A tail sleeve, which is arranged at the tail of the connector body and can move forward and backward relative to the connector body, and the tail sleeve is provided with a second fixing portion on both sides corresponding to the first polarity and the second polarity; A connecting piece, both ends of which are detachably arranged on the elastic arm and the tail sleeve through the first fixing part and the second fixing part respectively, and the tail sleeve and the elastic arm are connected together through the connecting piece. When the tail sleeve moves backward, the elastic arm is pulled downward by the connecting piece.

2. The optical fiber connector according to claim 1, characterized in that: The extension part is provided with a limited guide column, and the connecting piece is provided with a sliding groove; The connecting piece is sleeved on the limiting guide column through the sliding groove, and the part of the connecting piece between the second fixing part and the limiting guide column is arranged along the plane of the connector body and the tail sleeve. After passing through the limiting guide column, the connecting piece is inclined upward and connected to the end of the elastic arm.

3. The optical fiber connector according to claim 1 or 2, characterized in that: The connecting piece is made of flexible material.

4. The optical fiber connector according to claim 1 or 2, characterized in that: A card block is arranged at a position near the front of the bottom surface of the extension portion, and a card slot matched with the card block is arranged on the connector body.

5. The optical fiber connector according to claim 1 or 2, characterized in that: The connector body is a double-core LC type connector.

6. The optical fiber connector according to claim 5, characterized in that: The elastic locking tongue component and the connecting member are provided in two pieces, and the tail sleeve is provided with a second fixing part at the position corresponding to the first polarity and the second polarity.

7. The optical fiber connector according to claim 1, characterized in that: The extension portion is provided with a limiting groove, and the connecting member can be slidably arranged in the limiting groove forward and backward; The portion of the connecting member between the second fixing portion and the limiting groove is arranged along the plane of the connector body and the tail sleeve. After passing through the limiting groove, the connecting member is inclined upward and connected to the end of the elastic arm.

8. The optical fiber connector according to claim 1, characterized in that: The extension portion is provided with a limiting slide groove, and the limiting slide groove is provided with an opening which is communicated with the interior of the limiting slide groove, and the opening is used for installing the connecting piece.

9. The optical fiber connector according to claim 1, characterized in that: The nesting portion is nested in the connector body from the front end to the rear.

10. The optical fiber connector according to claim 1, characterized in that: The nesting part has a notch, and the connector body has a clamping seat. The notch cooperates with the clamping seat to allow the nesting part to be clamped into the connector body from the outside.

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