Anti-falling optical fiber connector

Abstract

The utility model relates to the technical field of optical fiber connectors, and discloses an anti-drop optical fiber connector, which comprises a connector shell and an optical fiber plug which is plugged at two ends of the connector shell and realizes optical fiber coupling, and the optical fiber plug comprises a first connecting part and a second connecting part which are internally provided with optical fibers. The first connecting part is inserted into the connector shell; when the optical fiber plug is inserted into the optical fiber connector, the trapezoidal clamping block firstly contacts the abutting block, and the abutting block is extruded to be close to the inner wall of the connector shell until the inclined surface of the abutting block is attached to the inclined surface of the clamping block, so that the optical fiber plug is preliminarily limited; after the plug is plugged in place, the second connecting ring is screwed to drive the threaded ring to be installed in the annular groove in a threaded mode until the second connecting ring abuts against the side portion of the connector shell, locking of the optical fiber plug is achieved, and the connection stability between the optical fiber plug and the connector is improved through the connection mode of double connection locking. And the risk that the optical fiber plug falls off from the connector is reduced.

Description

Technical Field

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

[0002] A fiber optic connector is a device used for detachable (movable) connection between optical fibers. Its basic principle is to precisely connect the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent and the impact on the system caused by its involvement in the optical link can be minimized.

[0003] After searching, the patent with application number CN202320881440.7 discloses a fiber optic connector, including a connector, a connecting assembly, a body and a fastener, wherein: the connecting assembly includes a first ring and a second ring, the outer diameter of the first ring is smaller than the outer diameter of the second ring, and the first ring and the second ring can move relative to each other in the axial direction; the outer circumference of the body is provided with a first connecting portion, and the second ring is provided with a second connecting portion; a window is provided at one end of the body close to the connector, the shape of the inside of the fastener matches the shape of the optical fiber cable, and a fastening protrusion is provided on the inner side wall of the fastener, and the fastener is interference-connected with the optical fiber cable through the fastening protrusion. It can improve the fixing effect of the optical fiber in the optical fiber connector, thereby improving the connection stability and connection accuracy of the optical fiber connector.

[0004] The current fiber optic connector uses a plug-in and pull-out method when connecting fiber optic plugs at both ends. Although it realizes the convenience of fiber optic plug-in, it also reduces the stability of the connection between the fiber optic plug and the connector, causing the fiber optic plug and the connector to easily fall off. Therefore, we need to propose an anti-falling fiber optic connector to strengthen the connection between the fiber optic plug and the connector so that the two will not fall off easily. Utility Model Content

[0005] The utility model aims to provide an anti-falling optical fiber connector. Through the design of a card block and a limiting component, when the optical fiber plug is inserted into the optical fiber connector, the trapezoidal card block first contacts the abutment block, and the abutment block is squeezed close to the inner wall of the connector shell until the inclined surface of the abutment block fits with the inclined surface of the card block, thereby achieving preliminary limiting of the optical fiber plug; through the design of the first connecting part, after the plug is plugged into place, the second connecting ring is screwed to drive the threaded ring to be threadedly installed into the inside of the annular groove until the second connecting ring abuts against the side of the connector shell, thereby achieving locking of the optical fiber plug. Through the double connection and locking connection method, the connection stability between the optical fiber plug and the connector is increased, and the risk of the optical fiber plug and the connector falling off is reduced, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solutions: an anti-dropping optical fiber connector, comprising a connector housing, an optical fiber plug inserted at both ends of the connector housing and realizing optical fiber coupling, the optical fiber plug comprising a first connecting portion and a second connecting portion with an optical fiber inside, the first connecting portion being inserted inside the connector housing;

[0007] A trapezoidal block is installed on the outer wall of the second connecting part, a limit assembly aligned with the block is movably installed inside the connector shell, a second groove is opened on the inner wall of the connector shell, a connecting column is movably installed inside the second groove, and a bent resistance block is connected to the end of the connecting column.

[0008] Preferably, a spring is installed inside the second groove, one end of the spring is connected to the connecting column, the inner wall of the connector housing is provided with a first groove, and both ends of the abutment block are movably arranged inside the first groove.

[0009] Preferably, a stepped groove is formed on the outer wall of one end of the first connecting portion, a first connecting ring is slidably mounted on the outer wall of the stepped groove, a second connecting ring is rotatably mounted on one end of the first connecting ring, and a threaded ring is mounted on one end of the second connecting ring.

[0010] Preferably, a slide groove is provided on the outer wall of the stepped groove, a slider is installed on the inner wall of the first connecting ring, and the slider is slidably installed inside the slide groove.

[0011] Preferably, an annular groove is formed at the end of the connector housing, a threaded section is provided at the inner top of the annular groove, and the threaded ring is threadably mounted inside the annular groove.

[0012] Preferably, the inner wall of the connector housing is provided with a notch communicating with the annular groove, and the outer wall of the second connecting portion is connected with a limit bar, and the limit bar is inserted into the notch.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model adopts the design of the card block and the limiting assembly. When the optical fiber plug is inserted into the optical fiber connector, the trapezoidal card block first contacts the resistance block, and the resistance block is squeezed close to the inner wall of the connector housing until the inclined surface of the resistance block fits with the inclined surface of the card block, thereby realizing the initial limiting of the optical fiber plug;

[0015] 2. The utility model adopts the design of the first connecting part. After the plug is inserted into place, the second connecting ring is turned to drive the threaded ring to be threadedly installed into the interior of the annular groove until the second connecting ring contacts the side of the connector housing, thereby locking the optical fiber plug. The double connection and locking connection method increases the connection stability between the optical fiber plug and the connector, and reduces the risk of the optical fiber plug and the connector falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first connecting part of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connector housing of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the limit group of the utility model.

[0020] In the figure: 1. connector housing; 11. first groove; 12. second groove; 2. first connecting part; 21. stepped groove; 22. slide groove; 23. first connecting ring; 24. slider; 25. second connecting ring; 26. threaded ring; 3. second connecting part; 4. optical fiber; 5. clamping block; 6. limit strip; 7. limit assembly; 71. abutment block; 72. connecting column; 73. spring; 8. notch; 9. annular groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: an anti-dropping optical fiber connector, comprising a connector housing 1, an optical fiber plug plugged at both ends of the connector housing 1 and realizing optical fiber coupling, the optical fiber plug comprising a first connecting portion 2 and a second connecting portion 3 with an optical fiber 4 therein, the optical fiber 4 is located at the center of the first connecting portion 2 and the second connecting portion 3, and the optical fibers 4 on the two optical fiber plugs are aligned, and the first connecting portion 2 is plugged into the interior of the connector housing 1;

[0023] The outer wall of the second connecting part 3 is provided with a trapezoidal card block 5, specifically, the cross section of the card block 5 is an isosceles trapezoid, and a limit assembly 7 aligned with the card block 5 is movably installed inside the connector housing 1. Through the cooperation of the limit assembly 7 of the card block 5, the initial limit of the optical fiber plug is achieved, so that the optical fiber connector will not fall off easily after being connected to the optical fiber plug. The inner wall of the connector housing 1 is provided with a second groove 12, and a connecting column 72 is movably installed inside the second groove 12, and a bent abutment block 71 is connected to the end of the connecting column 72. The abutment block 71 includes a horizontal plate parallel to the horizontal part of the card block 5, and an inclined plate connected to both ends of the horizontal plate, and the slope of the inclined plate is the same as the slope of the inclined surface of the card block 5.

[0024] A spring 73 is installed inside the second groove 12 , one end of the spring 73 is connected to the connecting column 72 . The inner wall of the connector housing 1 is provided with a first groove 11 , and both ends of the abutment block 71 are movably arranged inside the first groove 11 .

[0025] As the optical fiber plug is inserted, the block 5 on the outer wall of the second connecting part 3 contacts the interference block 71 in the limiting assembly 7, and one of the inclined surfaces of the block 5 contacts and squeezes one of the inclined surfaces of the interference block 71. After being squeezed, the interference block 71 moves toward the inner wall of the connector housing 1, that is, the end of the interference block 71 penetrates into the first groove 11 until the plane of the interference block 71 contacts the plane of the block 5, and then as the block 5 continues to move, the plane of the interference block 71 is misaligned with the plane of the block 5, and the spring 73 pushes the interference block 71 to move, so that the other inclined surface of the block 5 contacts the other inclined surface of the interference block 71, thereby completing the preliminary limiting of the optical fiber plug.

[0026] A stepped groove 21 is formed on the outer wall of one end of the first connecting portion 2, a first connecting ring 23 is slidably mounted on the outer wall of the stepped groove 21, a second connecting ring 25 is rotatably mounted on one end of the first connecting ring 23, a threaded ring 26 is mounted on one end of the second connecting ring 25, and the threaded ring 26 is an external threaded ring.

[0027] A slide groove 22 is provided on the outer wall of the stepped groove 21, and a slider 24 is installed on the inner wall of the first connecting ring 23. The slider 24 is slidably installed inside the slide groove 22. Multiple groups of slide grooves 22 are arranged at equal angles. The stability of the movement of the first connecting ring 23 is ensured by the cooperation between the slider 24 and the slide groove 22.

[0028] An annular groove 9 is provided at the end of the connector housing 1, and a threaded section is provided at the inner top of the annular groove 9. A threaded ring 26 is threadedly installed inside the annular groove 9. The threaded ring 26 is threadedly installed inside the annular groove 9, and the second connecting ring 25 is abutted against the end of the connector housing 1 to achieve locking of the optical fiber plug.

[0029] The inner wall of the connector housing 1 is provided with a notch 8 connected to the annular groove 9, and the outer wall of the second connecting part 3 is connected with a limit strip 6, which is inserted into the inside of the notch 8. The limit strip 6 is aligned with and inserted into the inside of the notch 8 to ensure the accuracy and stability of the installation of the optical fiber plug.

[0030] When in use, the two fiber optic plugs are respectively installed at the two ends of the connector housing 1, and the limiting strips 6 are aligned and inserted into the inside of the notch 8 to ensure the accuracy and stability of the fiber optic plug installation and realize the rapid alignment and installation of the fiber optic plug. As the fiber optic plug is inserted, the card block 5 on the outer wall of the second connecting portion 3 contacts the abutment block 71 in the limiting assembly 7, and one of the inclined surfaces of the card block 5 contacts and squeezes one of the inclined surfaces of the abutment block 71. After being squeezed, the abutment block 71 moves toward the inner wall of the connector housing 1, that is, the end of the abutment block 71 penetrates into the first groove 11 until the plane of the abutment block 71 contacts the plane of the card block 5, and then as the card block 5 continues to move, the plane of the abutment block 71 is misaligned with the plane of the card block 5, and the spring 73 pushes the abutment block 71 to move, so that the other inclined surface of the card block 5 contacts the other inclined surface of the abutment block 71, thereby completing the preliminary limiting of the fiber optic plug.

[0031] Then rotate the second connecting ring 25 to make the threaded ring 26 threadably installed into the annular groove 9, and make the second connecting ring 25 abut against the end of the connector housing 1 to lock the optical fiber plug. Through the two limiting structures, the stability of the connection between the optical fiber plug and the optical fiber connector is guaranteed, and it is not easy to fall off.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-drop optical fiber connector, characterized in that: It comprises a connector housing (1), and an optical fiber plug plugged into two ends of the connector housing (1) and realizing optical fiber coupling, the optical fiber plug comprising a first connecting portion (2) with an optical fiber (4) therein and a second connecting portion (3), the first connecting portion (2) being plugged into the interior of the connector housing (1); A trapezoidal clamping block (5) is mounted on the outer wall of the second connecting portion (3); a limit assembly (7) aligned with the clamping block (5) is movably mounted inside the connector housing (1); a second groove (12) is formed on the inner wall of the connector housing (1); a connecting column (72) is movably mounted inside the second groove (12); and a bent abutment block (71) is connected to the end of the connecting column (72).

2. The anti-drop optical fiber connector according to claim 1, characterized in that: A spring (73) is installed inside the second groove (12), one end of the spring (73) is connected to the connecting column (72), the inner wall of the connector housing (1) is provided with a first groove (11), and the two ends of the abutment block (71) are movably arranged inside the first groove (11).

3. The anti-drop optical fiber connector according to claim 1, characterized in that: A stepped groove (21) is formed on an outer wall at one end of the first connecting portion (2), a first connecting ring (23) is slidably mounted on the outer wall of the stepped groove (21), a second connecting ring (25) is rotatably mounted on one end of the first connecting ring (23), and a threaded ring (26) is mounted on one end of the second connecting ring (25).

4. The anti-dropping optical fiber connector according to claim 3, characterized in that: The outer wall of the stepped groove (21) is provided with a slide groove (22), and the inner wall of the first connecting ring (23) is provided with a sliding block (24), and the sliding block (24) is slidably mounted inside the slide groove (22).

5. The anti-drop optical fiber connector according to claim 4, characterized in that: An annular groove (9) is provided at the end of the connector housing (1), a threaded section is provided at the inner top of the annular groove (9), and the threaded ring (26) is threadedly mounted inside the annular groove (9).

6. The anti-dropping optical fiber connector according to claim 5, characterized in that: The inner wall of the connector housing (1) is provided with a notch (8) communicating with the annular groove (9); the outer wall of the second connecting portion (3) is connected to a limit strip (6); the limit strip (6) is inserted into the inside of the notch (8).

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