Optical signal receiving and connecting device

Abstract

The utility model discloses an optical signal receiving and connecting device, which comprises an FC joint, a front-end screw sleeve, a rear-end screw cap and a sheath wire formed by a plurality of sheath pipes connected end to end, the FC joint is fixedly connected to the front end of the front-end screw sleeve, the rear end of the front-end screw sleeve is connected with the rear-end screw cap, and a baffle ring is fixedly connected inside the tail end of the rear-end screw cap; one end of the protective sleeve is fixedly connected with a raised head, and the other end is provided with a clamping hole; the raised head rotates in the clamping hole; one end of the first protective sleeve is connected with a flange ring, and the flange ring is clamped between the tail end of the front-end threaded sleeve and the baffle ring. And the flange ring is clamped between the tail end of the front-end screw sleeve and the baffle ring by screwing the rear-end screw cap. The protective sleeves connected with the flange rings protect the optical fibers, when external force is applied, the protruding heads rotate in the clamping holes, the adjacent protective sleeves rotate relatively, and the rotation amplitude is the preset amplitude. Therefore, the situation that the optical fiber is damaged due to large-amplitude bending can be avoided.

Description

Technical Field

[0001] The utility model relates to an optical signal receiving and connecting device, in particular to a protective sleeve structure for preventing optical fibers from being broken. Background Art

[0002] Transmitting optical signals through optical fibers not only has a high speed but also a large information capacity. The two ends of an optical fiber are often connected to optical devices, optical terminals, etc. During installation and use, the optical fiber is often broken due to external forces. After being broken, the optical fiber cannot transmit optical signals. Therefore, how to avoid the optical fiber from being broken by external forces is a technical problem that needs to be solved urgently by those skilled in the art. Content of the Utility Model

[0003] To overcome the above disadvantages, the purpose of the utility model is to provide an optical signal receiving and connecting device.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is: an optical signal receiving and connecting device, including an FC connector, a front-end screw sleeve, and a rear-end nut. The FC connector is fixedly connected to the front end of the front-end screw sleeve. The rear end of the front-end screw sleeve is connected to the rear-end nut. A retaining ring is fixedly connected inside the end of the rear-end nut.

[0005] The optical signal receiving and connecting device further includes a sheathed wire composed of several protective sleeves connected end to end. One end of the protective sleeve is fixedly connected with a convex head, and the other end is provided with a clamping hole. The convex head is inserted into the clamping hole of the adjacent protective sleeve and rotates in the clamping hole. One end of the first protective sleeve is connected with a flange ring, and the flange ring is clamped between the end of the front-end screw sleeve and the retaining ring.

[0006] The utility model is further arranged as: there are two clamping holes, which are oppositely arranged on both sides of one end of the protective sleeve; there are two convex heads, which are oppositely arranged on both sides of one end of the protective sleeve.

[0007] The utility model is further arranged as: the convex head is fixedly connected to the protective sleeve through a connecting rod; a connecting groove is also arranged between the clamping hole and the end of the protective sleeve; the connecting rod swings in the connecting groove.

[0008] The utility model is further arranged as: the two convex heads and the two clamping holes on the same protective sleeve are not in the same plane.

[0009] The utility model is further arranged as: the inside of the front-end screw sleeve is in the shape of a virtual frustum of a cone, and a conical ring made of foam is arranged inside. The height of the conical ring is greater than the height of the front-end screw sleeve.

[0010] The utility model is further arranged as: a hexagonal flange is fixedly connected to the outer periphery of the front-end screw sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: By setting the front-end screw sleeve to be connected with the FC connector, and tightening the rear-end nut, the flange ring is clamped between the end of the front-end screw sleeve and the retaining ring. The protective sleeve connected to the flange ring protects the optical fiber. When an external force is applied, the convex head rotates in the clamping hole, and the adjacent protective sleeves rotate relative to each other, and the rotation amplitude is a predetermined amplitude. Therefore, the situation of damaging the optical fiber caused by large-amplitude bending can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the optical signal receiving connection device;

[0013] Figure 2 is a cross-sectional structural schematic diagram of the optical signal receiving connection device;

[0014] Figure 3 is a structural schematic diagram of the protective sleeve;

[0015] Figure 4 is a structural schematic diagram of the assembly of several protective sleeves.

[0016] In the figure: 1, FC connector; 2, front-end screw sleeve; 3, hexagonal flange; 4, rear-end nut; 5, protective sleeve; 6, retaining ring; 7, conical ring; 8, flange ring; 9, clamping hole; 10, convex head; 11, connecting groove; 12, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following describes in detail the preferred embodiments of the present utility model with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0018] See the attached Figures 1-4 As shown, an optical signal receiving connection device in this embodiment includes an FC connector 1, a front-end screw sleeve 2, a rear-end nut 4, and a sheath wire composed of several protective sleeves 5 connected end to end. The FC connector 1 is fixedly connected to the front end of the front-end screw sleeve 2. The rear end of the front-end screw sleeve 2 is connected to the rear-end nut 4. A retaining ring 6 is fixedly connected inside the end of the rear-end nut 4. One end of the protective sleeve 5 is fixedly connected with a convex head 10, and the other end is provided with a clamping hole 9. The convex head 10 is inserted into the clamping hole 9 of the adjacent protective sleeve 5 and rotates in the clamping hole 9. One end of the first protective sleeve 5 is connected with a flange ring 8, and the flange ring 8 is clamped between the end of the front-end screw sleeve 2 and the retaining ring 6.

[0019] By setting the front-end ferrule 2 to be connected to the FC connector 1, and by tightening the rear-end nut 4, the flange ring 8 is clamped between the end of the front-end ferrule 2 and the retaining ring 6. The fiber optic cable is protected by the protective sleeve 5 connected to the flange ring 8. When an external force is applied, the convex head 10 rotates in the locking hole 9, and the adjacent protective sleeves 5 rotate relative to each other, with the rotation amplitude being a predetermined amplitude. Therefore, it is possible to avoid damage to the fiber optic cable caused by large-scale bending.

[0020] To prevent the convex head 10 from disengaging from the locking hole 9, the present utility model is further configured as follows: there are two locking holes 9, which are oppositely arranged on both sides of one end of the protective sleeve 5; there are two convex heads 10, which are oppositely arranged on both sides of one end of the protective sleeve 5. The two convex heads 10 are arranged on both sides of the protective sleeve 5 and are respectively rotatably connected in the locking holes 9. Clamping from both sides makes it not easy to separate during the rotation process.

[0021] The present utility model is further configured as follows: the convex head 10 is fixedly connected to the protective sleeve 5 through a connecting rod 12; a connecting groove 11 is further provided between the locking hole 9 and the end of the protective sleeve 5; the connecting rod 12 swings in the connecting groove 11. The convex head 10 rotates in the locking hole 9, and the connecting rod 12 swings in the connecting groove 11, moving synchronously.

[0022] To rotate the protective sleeve 5 in different directions, the present utility model is further configured as follows: the two convex heads 10 and the two locking holes 9 on the same protective sleeve 5 are not in the same plane. Since the two convex heads 10 and the two locking holes 9 are not in the same plane, the rotation directions of adjacent protective sleeves 5 are different. It can buffer external forces in different directions and change the bending direction. It can not only avoid damage to the fiber optic cable caused by external forces breaking it, but also enable the fiber optic cable to be routed in a predetermined direction.

[0023] To enable the front-end ferrule 2 to fix the fiber optic cable, the present utility model is further configured as follows: the interior of the front-end ferrule 2 is in the shape of a virtual frustum, and a conical ring 7 made of foam is provided inside. The height of the conical ring 7 is greater than the height of the front-end ferrule 2. During the process of tightening the rear-end nut 4, the retaining ring 6 pushes the flange ring 8 to abut against the conical ring 7. The conical ring 7 is deformed under pressure, and the central aperture of the conical ring 7 shrinks, clamping the fiber optic cable in the conical ring 7.

[0024] To facilitate the rotation and tightening of the front-end ferrule 2 and the rear-end nut 4, the present utility model is further configured as follows: a hexagonal flange 3 is fixedly connected to the outer periphery of the front-end ferrule 2. The outer shape of the rear-end nut 4 is a regular hexagon.

[0025] In summary, the usage method of the optical signal receiving and connecting device shown in the present utility model is as follows: The optical fiber passes through the protective sleeve 5, the rear end nut 4, the conical ring 7 and the front end sleeve 2 and is connected to the FC connector 1. The rear end nut 4 is tightened, and the flange ring 8 is clamped between the end of the front end sleeve 2 and the retaining ring 6. During the process of tightening the rear end nut 4, the retaining ring 6 pushes the flange ring 8 to abut against the conical ring 7. The conical ring 7 is deformed under pressure and contracts towards the center. The central aperture of the conical ring 7 is reduced, and the optical fiber in the conical ring 7 is clamped. The protective sleeve 5 connected to the flange ring 8 protects the optical fiber. When an external force is applied, the convex head 10 rotates in the card hole 9, and the adjacent protective sleeves 5 rotate relative to each other. The rotation amplitude is a predetermined amplitude. Therefore, the situation of damaging the optical fiber caused by large-amplitude bending can be avoided. The convex head 10 rotates in the card hole 9, and the connecting rod 12 swings in the connecting groove 11, moving synchronously. The two convex heads 10 are arranged on both sides of the protective sleeve 5 and are respectively rotatably connected in the card holes 9. Clamping from both sides is not easy to separate during the rotation process. Since the two convex heads 10 and the two card holes 9 are not in the same plane, the rotation directions of the adjacent protective sleeves 5 are different. External forces can be buffered in different directions, and the bending direction can be changed. It can not only avoid the damage of the optical fiber caused by external forces breaking, but also enable the optical fiber to be routed in a predetermined direction.

Claims

1. An optical signal receiving connection device, comprising an FC connector (1), a front end screw sleeve (2) and a rear end nut (4), wherein the FC connector (1) is fixedly connected to the front end of the front end screw sleeve (2), the rear end of the front end screw sleeve (2) is connected to the rear end nut (4), and a retaining ring (6) is fixedly connected to the end of the rear end nut (4); It is characterized in that The optical signal receiving connection device also includes a sheathed wire composed of a plurality of sheathed tubes (5) connected end to end, one end of the sheathed tube (5) is fixedly connected with a protrusion (10), and the other end is provided with a clamping hole (9); the protrusion (10) is inserted into the clamping hole (9) of the adjacent sheathed tube (5) and rotates in the clamping hole (9); one end of the first sheathed tube (5) is connected with a flange ring (8), and the flange ring (8) is clamped between the end of the front end screw sleeve (2) and the retaining ring (6).

2. The optical signal receiving and connecting device according to claim 1, characterized in that: There are two clamping holes (9), which are arranged oppositely on two sides of one end of the sheath tube (5); there are two protrusions (10), which are arranged oppositely on two sides of one end of the sheath tube (5).

3. The optical signal receiving and connecting device according to claim 2, characterized in that: The protrusion (10) is fixedly connected to the sheath tube (5) via a connecting rod (12); a connecting groove (11) is also provided between the clamping hole (9) and the end of the sheath tube (5); and the connecting rod (12) swings in the connecting groove (11).

4. The optical signal receiving and connecting device according to claim 3, characterized in that: The two protrusions (10) and the two clamping holes (9) on the same sheath tube (5) are not on the same plane.

5. The optical signal receiving and connecting device according to claim 4, characterized in that: The interior of the front end screw sleeve (2) is in the shape of a virtual truncated cone, and a conical ring (7) made of foam is arranged inside, and the height of the conical ring (7) is greater than the height of the front end screw sleeve (2).

6. The optical signal receiving and connecting device according to claim 5, characterized in that: The outer periphery of the front end screw sleeve (2) is fixedly connected with a hexagonal flange (3).

Images