Anti-loosening optical fiber plug

Abstract

The utility model provides an anti-loosening optical fiber plug, which comprises a mounting seat and two butt joints, the two butt joints are respectively positioned at two ends of the mounting seat, the edge of one end of each butt joint far away from the mounting seat is provided with an annular groove, the inner wall of one end of each second connecting sleeve is provided with a limiting flange, and the two second connecting sleeves are respectively sleeved on the mounting seat. The ends, close to each other, of the two second connecting sleeves are detachably connected to the two ends of the butt joint correspondingly. When the butt joint structure is used, the second connecting sleeve is sleeved on the mounting seat and is clamped in the annular groove through the limiting flange, and after the second connecting sleeve is in threaded connection with the butt joint, the second connecting sleeve stretches across the butt joint position of the butt joint and the mounting seat, so that the butt joint position of the butt joint and the mounting seat is prevented from loosening at all.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber connector technical field, concretely is a kind of optical fiber plug of anti-loosening. BACKGROUND

[0002] Optical fiber connector is the device that optical fiber is detachably (movably) connected between, it precisely butts the two end faces of optical fiber, to make the light energy of transmitting optical fiber output can be maximally coupled into receiving optical fiber, and make the influence to system due to its intervention light chain is reduced to minimum, this is the basic requirement of optical fiber connector.

[0003] The existing optical fiber plug is mostly inserted into adapter, and the plug and the adapter are often fixed by buckle or plug-in mode, this fixing mode is prone to loosening, especially in terminal box and optical fiber distribution box, the tail fiber and the adapter are fixed by plug-in mode, in this case, it is very easy to loosen or fall off, so as to cause signal interruption and weakening. For this reason, we propose a kind of optical fiber plug of anti-loosening. SUMMARY

[0004] In view of the deficiency that the existing optical fiber connector is easy to loosen, the utility model provides a kind of optical fiber plug of anti-loosening, has the advantage that the second connecting sleeve straddles the butt joint of butt joint and mounting seat, to avoid the butt joint and the butt joint of mounting seat Looseness occurs, solve the problem proposed in the above background art.

[0005] The technical scheme of the utility model is realized as follows: a kind of optical fiber plug of anti-loosening, including mounting seat and two butt joints, two butt joints are located at the two ends of mounting seat respectively, and the edge of the end of butt joint away from mounting seat is provided with annular groove, the utility model further includes two second connecting sleeves, the inner wall of one end of each second connecting sleeve is provided with limit flange, two second connecting sleeves are respectively sleeved on mounting seat, and limit flange is placed in annular groove, and the end of two second connecting sleeves mutually close is respectively detachably connected on the two ends of butt joint.

[0006] Preferably, the second connecting sleeve is threadedly connected with the butt joint.

[0007] Preferably, the end of two butt joints mutually away is coaxially provided with cylindrical seat, the end of cylindrical seat away from butt joint is conical head, the surface of conical head is provided with multiple tightening mouths, and cylindrical seat and mounting seat are coaxially provided with optical fiber placing hole, the conical cover is sleeved on each conical head, the end of conical cover close to mounting seat is coaxially provided with first connecting sleeve, and the first connecting sleeve is sleeved on cylindrical seat and is threadedly connected with the same.

[0008] Preferably, coaxial limiting seats are arranged at one end of the two mounting seats close to each other, coaxial plug-in holes are arranged in each limiting seat, coaxial cylindrical heads are arranged in the plug-in holes, and fiber core placing holes communicating with the optical fiber placing holes are arranged in the cylindrical heads and the limiting seats.

[0009] Preferably, limiting cavities corresponding to the limiting seats are arranged at two ends of the adapter, and a connecting pipe is arranged in each limiting cavity, and the two connecting pipes communicate with each other.

[0010] Preferably, the limiting cavities and the limiting seats are regular polygons in section.

[0011] Compared with the prior art, in use, the second connecting sleeve is sleeved on the mounting seat and clamped in the annular groove through the limiting flange, when the second connecting sleeve is threadedly connected to the adapter, the second connecting sleeve spans the adapter and the mounting seat, thereby avoiding any loosening of the adapter and the mounting seat. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Figure 1 Structure diagram of the present application Figure One .

[0014] Figure 2 Structure diagram of the present application Figure Two .

[0015] Figure 3 Sectional view of the present application Figure One .

[0016] Figure 4 Sectional view of the present application Figure Two .

[0017] In the drawings: 1, conical cover; 2, first connecting sleeve; 3, limiting flange; 4, second connecting sleeve; 5, connecting pipe; 6, limiting cavity; 7, annular groove; 8, adapter; 9, limiting seat; 10, mounting seat; 11, conical head; 12, tightening opening; 13, cylindrical head; 14, fiber core placing hole; 15, plug-in hole; 16, optical fiber placing hole; 17, cylindrical seat. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described below in clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] With reference to Figures 1 to 4 The utility model provides a kind of technical scheme: a fiber plug of anti-loosening, including mounting seat 10, the both ends of butt joint 8 are equipped with the limiting cavity 6 corresponding with limiting seat 9, each limiting cavity 6 is equipped with butt joint pipe 5, as shown in Figure 3 Two butt joint pipes 5 are communicated with each other. It needs to be explained that butt joint pipe 5 is hidden inside limiting cavity 6, i.e. the end of butt joint pipe 5 has a certain spacing with the opening of limiting cavity 6.

[0020] The application also includes two butt joints 8, two butt joints 8 are located at the both ends of mounting seat 10 respectively, and the end of two butt joints 8 away from each other is coaxially provided with cylindrical seat 17, as shown in Figure 3 Cylindrical seat 17 and mounting seat 10 are coaxially provided with fiber placing hole 16.

[0021] Each conical head 11 is sleeved with conical cover 1, and the end of conical cover 1 close to mounting seat 10 is coaxially provided with first connecting sleeve 2, which is sleeved on cylindrical seat 17 and threadedly connected therewith. The end of cylindrical seat 17 away from butt joint 8 is conical head 11, and the surface of conical head 11 is provided with multiple tightening openings 12, so that conical head 11 has a multi-petal structure. When first connecting sleeve 2 is threadedly rotated on cylindrical seat 17, first connecting sleeve 2 will drive conical cover 1 to be pressed towards conical head 11, so that the multiple tightening openings 12 on conical head 11 are simultaneously contracted.

[0022] In actual use, the fiber is placed in the fiber placing hole 16, so that when the conical head 11 is contracted, the fiber can be clamped tightly, and the multi-petal conical head 11 is simultaneously tightened, so that the clamped fiber is uniformly stressed, which not only fixes the fiber, but also prevents the fiber from being clamped off.

[0023] Then, annular groove 7 is arranged on the edge of the end of butt joint 8 away from mounting seat 10, and second connecting sleeve 4 is sleeved on each mounting seat 10, and limiting flange 3 is arranged on the inner wall of one end of each second connecting sleeve 4.

[0024] When two second connecting sleeves 4 are sleeved on mounting seat 10, limiting flange 3 is arranged in annular groove 7 at this time, and the end of two second connecting sleeves 4 away from each other is detachably connected to the both ends of butt joint 8, specifically, second connecting sleeve 4 is threadedly connected with butt joint 8.

[0025] In actual application process, the adapter 8 is arranged at both ends of the mounting seat 10, at this time, the second connecting sleeve 4 is sleeved on the adapter 8, and then the second connecting sleeve 4 is threadedly connected on the adapter 8, the connecting structure is firm, and will not be loose after long-term use.

[0026] The adapter 8 corresponds to the optical fiber adapter, and the mounting seat 10 corresponds to the male head inserted into the optical fiber adapter, the limiting seat 9 is coaxially arranged at one end of the two mounting seats 10, and the position and size of the limiting seat 9 correspond to the limiting cavity 6;

[0027] The plug-in hole 15 is coaxially arranged in each limiting seat 9, and the position and size of the plug-in hole 15 correspond to the adapter pipe 5;

[0028] The cylindrical head 13 is coaxially arranged in the plug-in hole 15, and the position and size of the cylindrical head 13 correspond to the inner cavity of the adapter pipe 5, as shown in the figure, the end of the cylindrical head 13 extends out of the plug-in hole 15. Figure 1 In actual use, the optical fiber is first peeled at one end, so that the core inside is exposed, and then the optical fiber is arranged in the optical fiber placing hole 16, at this time, the optical fiber is clamped by the tapered head 11, as shown in the figure, the cylindrical head 13 and the limiting seat 9 are provided with the core placing hole 14 which is in communication with the optical fiber placing hole 16, the core is arranged in the core placing hole 14, at this time, the core needs to be flattened with the end of the cylindrical head 13; Figure 4

[0029] Specific plug-in process is as follows: first, the limiting seat 9 is arranged in the limiting cavity 6, then the adapter pipe 5 is arranged in the plug-in hole 15, and at this time, the cylindrical head 13 is arranged in the adapter pipe 5, when the adapter 8 and the mounting seat 10 are completely connected together, as shown in the figure, the cylindrical head 13 is connected in the middle of the adapter 8, so that the two male heads inserted into the optical fiber adapter realize conduction; Figure 4

[0030] At the same time, the second connecting sleeve 4 is threadedly connected on the adapter 8, so that the adapter 8 and the mounting seat 10 are more closely connected, and the second connecting sleeve 4 spans the connection between the adapter 8 and the mounting seat 10, so as to avoid any looseness of the adapter 8 and the mounting seat 10 at the connection.

[0031] Based on the above embodiment, the limiting cavity 6 and the limiting seat 9 are further optimized to be regular polygonal section, specifically, the limiting cavity 6 and the limiting seat 9 are regular quadrangular prisms, when the limiting cavity 6 is arranged in the limiting seat 9, the two can only be pulled and inserted but cannot be rotated, so that the second connecting sleeve 4 is more stable when connected with the adapter 8, and the mounting seat 10 is prevented from rotating when the second connecting sleeve 4 is screwed.

[0032] ​​Based on the above embodiment, the fiber placement hole 16 is provided with a tube-shaped elastic rubber tube, and an elastic sealing gasket is arranged on the end face of the connector 8 or the mounting seat 10, so that the taper head 11 can play a waterproof role after being tightened and the connector 8 and the mounting seat 10 are connected.

[0033] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fiber optic connector designed to prevent loosening, comprising a mounting base (10) and two connectors (8), the two connectors (8) being located at opposite ends of the mounting base (10), characterized in that, The end edge of the connector (8) away from the mounting base (10) is provided with an annular groove (7); It also includes two second connecting sleeves (4), each of which has a limiting flange (3) on one end of its inner wall; Two second connecting sleeves (4) are respectively fitted onto the mounting base (10), and the limiting flange (3) is placed in the annular groove (7). The two second connecting sleeves (4) are respectively detachably connected to the two ends of the connector (8).

2. The anti-loosening fiber optic plug as described in claim 1, characterized in that, The second connecting sleeve (4) is threadedly connected to the butt joint (8).

3. The anti-loosening fiber optic plug as described in claim 1, characterized in that, Both ends of the two connectors (8) are coaxially provided with cylindrical seats (17), and the end of the cylindrical seat (17) away from the connector (8) is a conical head (11). The surface of the conical head (11) is provided with multiple tightening holes (12). Both the cylindrical base (17) and the mounting base (10) are coaxially provided with fiber optic placement holes (16); Each conical head (11) is fitted with a conical cover (1), and a first connecting sleeve (2) is coaxially provided at one end of the conical cover (1) near the mounting base (10). The first connecting sleeve (2) is fitted on the cylindrical base (17) and the two are threaded together.

4. The anti-loosening fiber optic plug as described in claim 3, characterized in that, A limiting seat (9) is coaxially provided at one end of the two mounting seats (10) that are close to each other. A plug hole (15) is coaxially provided in each limiting seat (9). A cylindrical head (13) is coaxially provided in the plug hole (15). A fiber core placement hole (14) communicating with the fiber placement hole (16) is provided in the cylindrical head (13) and the limiting seat (9).

5. The anti-loosening fiber optic plug as described in claim 4, characterized in that, Both ends of the connector (8) are provided with limiting cavities (6) corresponding to the limiting seats (9), and each limiting cavity (6) is provided with a connecting pipe (5), and the two connecting pipes (5) are connected to each other.

6. The anti-loosening fiber optic plug as described in claim 5, characterized in that, The cross-sections of the limiting cavity (6) and the limiting seat (9) are regular polygons.

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