Prefabricated end-forming butterfly-shaped optical cable quick connector

Abstract

The utility model relates to the technical field of optical cable connectors, and discloses a prefabricated end-forming butterfly-shaped optical cable quick connector, which comprises a connector main body and an insertion tube arranged at the output end of the connector main body, and one end, far away from the connector main body, of the insertion tube is fixedly connected with a sealing tube. According to the utility model, by arranging the slidable structure of the annular column, after the optical fiber passes through the slot and is connected with the interior of the connector main body, the rotary cover is rotated, the annular column and the annular plate are driven to slide while the rotary cover rotates, and the interior of the annular air bag is pressurized, so that the inner wall of the annular air bag can be hermetically attached to the outer surface of the optical fiber; sealing between the optical fiber and the connector can be achieved, moisture and the like are effectively prevented from entering a gap between the connector body and the optical fiber, scattering and refraction of optical signals caused by medium change are avoided, high quality of the optical signals is guaranteed, the sealing structure can prevent moisture from entering the connector body, and rusting of internal metal parts is avoided. The service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cable connectors, and more specifically to a prefabricated butterfly-shaped optical cable quick connector. Background Art

[0002] The prefabricated butterfly optical cable quick connector is a key component for fast and convenient connection of butterfly optical cables. It is pre-installed with optical fiber, pre-polished ceramic ferrule and mechanical splicing mechanism. The splicing point is located in the V-groove inside the connector. The groove is filled with matching liquid with a refractive index similar to that of the fiber core. When performing the termination operation, the V-groove is opened with the help of a wedge clamp, and the optical fiber of the butterfly optical cable is inserted into the V-groove and fixed. Then the wedge clamp is pulled out, and the matching liquid is used to make the preset optical fiber and the target optical fiber fit seamlessly, thereby achieving a low-loss connection.

[0003] In contrast, the SC connector has mechanical structures such as elastic claws or pressure rings inside. When the optical fiber is inserted into the connector, the elastic claws will tightly clamp the optical fiber sheath under the action of springs or other elastic elements. However, this connection structure cannot achieve a completely sealed clamping of the optical fiber sheath when fixing it, which leads to a gap between the optical fiber sheath and the connector. In special environments such as underground corridors, swimming pools, and hot spring baths, water is very likely to accumulate on the optical fiber sheath, and the accumulated water will flow into the connector along the optical fiber sheath. Once water flows into the connector, it is not only easy to corrode and damage the internal parts, but if the water flows to the optical fiber end, it will also have an adverse effect on the transmission quality of the optical fiber. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a prefabricated butterfly-shaped optical cable quick connector to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a prefabricated butterfly-shaped optical cable quick connector, comprising a connector body and an insert tube arranged at the output end of the connector body, the insert tube being fixedly connected to an end away from the connector body with a sealing tube, the sealing tube being externally threaded with a rotating cover, a slot being provided inside the sealing tube, the sealing tube being stepped, an annular airbag being fixedly connected inside the sealing tube, an annular sealing groove being coaxially provided on the shoulder of the sealing tube, a spring being movably installed inside the annular sealing groove, an annular plate being sealingly and slidingly connected inside the annular sealing groove, an annular column being fixedly connected outside the annular plate, a vent pipe being fixedly connected inside the sealing tube, a connecting pipe being fixedly connected inside the annular column, an annular groove being provided inside the annular column, a sealing disk being sealingly and slidingly connected inside the annular groove, a connecting column being fixedly connected outside the sealing disk, and a silicone plate being fixedly connected outside the connecting column.

[0006] Furthermore, a square groove is opened inside the sealing tube, and a square sealing block is slidably connected to the inside of the square groove. A tooth plate is fixedly connected to the right side of the square sealing block, and a gear is meshingly connected to the inner side of the tooth plate. The gear is rotatably installed on the inner wall of the sealing tube, and a rotating plate is fixedly connected to the gear. The other end of the rotating plate is fixedly connected to a silicone block. A connecting pipe is fixedly connected to the inside of the sealing tube, and the right end of the annular sealing groove is connected to the left end of the square groove through the connecting pipe.

[0007] Furthermore, the end of the annular sealing groove away from the annular column is connected to the interior of the annular airbag through a ventilation tube, the surface of the annular airbag extends to the interior of the slot, and the diameter of the sealing tube near one end of the insertion tube is larger than the diameter of the other end.

[0008] Furthermore, the interior of the annular sliding groove is connected to the interior of the annular sealing groove through a connecting pipe, and the annular column and the sealing pipe are sealed and slidably connected.

[0009] Furthermore, the silicone block is cylindrical, a long groove is provided inside the sealing tube, the gear, the rotating plate and the silicone block are all rotatably connected inside the long groove, and the long groove is connected to the inside of the slot.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The utility model sets a slidable structure of the annular column. After the optical fiber passes through the slot and is connected to the inside of the connector body, the rotating cover is rotated. While the rotating cover rotates, the annular column and the annular plate are driven to slide, and the inside of the annular airbag is pressurized, so that the inner wall of the annular airbag can be sealed and fit against the outer surface of the optical fiber, and the sealing between the optical fiber and the connector can be achieved, effectively preventing moisture from entering the gap between the connector body and the optical fiber, avoiding scattering and refraction of optical signals due to medium changes, and ensuring the high quality of optical signals. The sealing structure can prevent moisture from entering the interior of the connector body, avoiding rusting of internal metal parts, and extending the service life of the equipment.

[0012] 2. The utility model provides a rotatable rotating plate. When the annular airbag seals and clamps the outside of the optical fiber, the silicone block abuts against the outer skin of the optical fiber, thereby preventing the optical fiber from being pulled and causing it to fall out of the connector body, thereby enhancing the stability of the optical fiber after being connected to the connector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the connection between the sealing tube and the rotating cover in the utility model;

[0015] Figure 3It is a cross-sectional view of the sealing tube in the utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0017] The accompanying drawings are marked as follows: 1. Connector body; 2. Insert tube; 3. Sealing tube; 31. Annular air bag; 32. Slot; 33. Annular column; 34. Annular plate; 35. Annular sealing groove; 36. Spring; 37. Ventilation pipe; 38. Connecting tube; 39. Annular slide groove; 310. Sealing disk; 311. Connecting column; 312. Silicone plate; 313. Square groove; 314. Square sealing block; 315. Tooth plate; 316. Gear; 317. Turning plate; 318. Silicone block; 4. Rotating cover. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0019] Figure 1 - Figure 4 It is the best embodiment of the utility model, and the following Figure 1 - Figure 4 The utility model is further described.

[0020] Refer to the attached Figure 1-Figure 4 A prefabricated butterfly-shaped optical cable quick connector comprises a connector body 1 and an insert tube 2 arranged at one end of the connector body 1, the insert tube 2 is fixedly connected to the end away from the connector body 1 with a sealing tube 3, the sealing tube 3 is externally threaded with a rotating cover 4, the sealing tube 3 is stepped, a slot 32 is provided inside the sealing tube 3, an annular airbag 31 is fixedly connected inside the sealing tube 3, an annular sealing groove 35 is coaxially provided on the shoulder of the sealing tube 3, a spring 36 is movably installed inside the annular sealing groove 35, an annular plate 34 is sealingly and slidably connected inside the annular sealing groove 35, an annular column 33 is fixedly connected to the outside of the annular plate 34, a vent pipe 37 is fixedly connected inside the sealing tube 3, a connecting pipe 38 is fixedly connected inside the annular column 33, an annular slide groove 39 is provided inside the annular column 33, a sealing disk 310 is sealingly and slidably connected inside the annular slide groove 39, a connecting column 311 is fixedly connected to the outside of the sealing disk 310, and a silicone plate 312 is fixedly connected to the outside of the connecting column 311. In this embodiment, the silicone plate 312 is in a ring shape.

[0021] In this embodiment, by setting a slidable structure of the annular column 33, after the optical fiber is passed through the slot 32 and connected to the inside of the connector body 1, by rotating the rotating cover 4, the rotating cover 4 drives the annular column 33 and the annular plate 34 to slide, and the inside of the annular airbag 31 is pressurized, so that the inner wall of the annular airbag 31 can be sealed and fit against the outer surface of the optical fiber, and the sealing between the optical fiber and the connector can be achieved, effectively preventing moisture from entering the gap between the connector body 1 and the optical fiber, avoiding scattering and refraction of optical signals due to changes in the medium, and ensuring the high quality of optical signals. The sealing structure can prevent moisture from entering the interior of the connector body 1, avoiding rusting of internal metal parts, and extending the service life of the equipment.

[0022] Specifically, a square groove 313 is provided inside the sealing tube 3, and a square sealing block 314 is slidably connected inside the square groove 313, and a tooth plate 315 is fixedly connected to the right side of the square sealing block 314. Furthermore, the tooth plate 315 is also arranged in the square groove 313, and a gear 316 is meshedly connected to the inner side of the tooth plate 315, and the gear 316 is rotatably mounted on the inner wall of the sealing tube 3, and a rotating plate 317 is fixedly connected to the gear 316, and the rotating plate 317 is arranged along the radial direction of the gear 316, and a silicone block 318 is fixedly connected to the other end of the rotating plate 317, and a connecting pipe is fixedly connected inside the sealing tube 3, and the right end inside the annular sealing groove 35 is connected to the left end inside the square groove 313 through the connecting pipe. In this embodiment, there are two square grooves 313 symmetrically arranged on both sides of the inner wall of the sealing tube 3, or three or four are evenly spaced around the inner wall of the sealing tube 3.

[0023] In the present embodiment, by providing a rotatable gear 316 and a rotating plate 317, when the annular airbag 31 seals and clamps the outside of the optical fiber, the silicone block 318 abuts against the outer skin of the optical fiber, thereby preventing the optical fiber from being pulled and causing the optical fiber to fall out of the connector body 1, thereby enhancing the stability of the optical fiber after being connected to the connector body 1.

[0024] Specifically, the end of the annular sealing groove 35 away from the annular column 33 is connected to the interior of the annular airbag 31 through the ventilation tube 37, the surface of the annular airbag 31 extends to the interior of the slot 32, and the diameter of the sealing tube 3 at one end close to the insertion tube 2 is larger than the diameter of the other end.

[0025] The accompanying drawings only show the position of the vent pipe 37. In order to make the various structures clearly represented in the drawings, the sizes of some components such as the vent pipe 37 may be enlarged. The sizes of various components may be set according to actual processing conditions.

[0026] In addition, the sealing tube 3 can be configured as a split structure to facilitate the installation of various components. After the installation is completed, the sealing tube 3 can be bonded.

[0027] In this embodiment, when the annular plate 34 slides to the left, the annular sealing groove 35 and the inside of the annular airbag 31 can be pressurized simultaneously.

[0028] Specifically, under normal conditions, the elasticity of the spring 36 causes the annular plate 34 to slide in a direction away from the spring 36 , so that the interior of the square groove 313 is in a high pressure state.

[0029] In this embodiment, by providing a spring 36 , when the rotating cover 4 rotates in a direction away from the sealing tube 3 , the sliding movement of the annular plate 34 can be reset.

[0030] Specifically, the interior of the annular sliding groove 39 is connected to the interior of the annular sealing groove 35 through the connecting pipe 38 , and the annular column 33 and the sealing pipe 3 are sealed and slidably connected.

[0031] In this embodiment, since the annular column 33 is sealingly slidably connected inside the sealing tube 3, the sealing property of the right end inside the annular sealing groove 35 can be ensured. After the rotating cover 4 is connected to the sealing tube 3, due to the existence of the connecting tube 38, the silicone plate 312 can be ensured to press the end of the rotating cover 4, thereby also sealing the joint between the sealing tube 3 and the rotating cover 4.

[0032] Specifically, the silicone block 318 is cylindrical or spherical. A long groove is opened inside the sealing tube 3. The gear 316, the rotating plate 317 and the silicone block 318 are all rotatably connected inside the long groove, and the long groove is connected to the inside of the slot 32.

[0033] In this embodiment, by providing the long groove, when the gear 316 rotates, the rotating plate 317 and the silicone block 318 can extend into the slot 32 and abut against the outer surface of the optical fiber.

[0034] The working principle and use process of the utility model are as follows: when in use, after the optical fiber passes through the slot 32 and is connected to the inside of the connector body 1, the rotating cover 4 is rotated. While the rotating cover 4 rotates, it abuts against the surface of the silicone plate 312, and the connecting column 311 drives the annular column 33 and the annular plate 34 to slide, and the left end of the inside of the annular sealing groove 35 is pressurized, and then the inside of the annular airbag 31 is pressurized, so that the inner wall of the annular airbag 31 can be sealed and fit to the outer surface of the optical fiber, so that the sealing between the optical fiber and the connector can be achieved, and moisture and the like can be effectively prevented from entering the connector body 1. The gap between the optical fiber and the connector body 1 can prevent moisture from entering the interior of the connector body 1 and avoid rusting of the internal metal parts. When the annular airbag 31 seals and clamps the outside of the optical fiber, the right end of the annular sealing groove 35 is in a negative pressure state, so that the square sealing block 314 drives the tooth plate 315 to slide to the left, and the tooth plate 315 drives the gear 316 and the rotating plate 317 to rotate, and the silicone block 318 is pressed against the surface of the optical fiber sheath, which can prevent the optical fiber from being pulled and causing the optical fiber to detach from the inside of the connector body 1, thereby enhancing the stability of the optical fiber after being connected to the connector body 1.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A prefabricated butterfly-shaped optical cable quick connector, comprising a connector body (1) and a plug (2) arranged at an output end of the connector body (1), characterized in that: The end of the insert tube (2) away from the connector body (1) is fixedly connected to a sealing tube (3), the sealing tube (3) is externally threaded with a rotating cover (4), a slot (32) is provided inside the sealing tube (3), the sealing tube (3) is stepped, an annular airbag (31) is fixedly connected inside the sealing tube (3), an annular sealing groove (35) is coaxially provided on the shoulder of the sealing tube (3), a spring (36) is movably installed inside the annular sealing groove (35), and an annular plate is slidably connected inside the annular sealing groove (35) for sealing. (34), the outer side of the annular plate (34) is fixedly connected to an annular column (33), the interior of the sealing tube (3) is fixedly connected to a vent pipe (37), the interior of the annular column (33) is fixedly connected to a connecting pipe (38), an annular groove (39) is provided inside the annular column (33), the interior of the annular groove (39) is sealingly and slidably connected to a sealing disk (310), the outer side of the sealing disk (310) is fixedly connected to a connecting column (311), and the outer side of the connecting column (311) is fixedly connected to a silicone plate (312).

2. The prefabricated butterfly-shaped optical cable quick connector according to claim 1, characterized in that: The sealing tube (3) is provided with a square groove (313) inside, and a square sealing block (314) is sealingly and slidably connected inside the square groove (313). A tooth plate (315) is fixedly connected to the right side of the square sealing block (314). A gear (316) is meshingly connected to the inner side of the tooth plate (315). The gear (316) is rotatably mounted on the inner wall of the sealing tube (3). A rotating plate (317) is fixedly connected to the gear (316). A silicone block (318) is fixedly connected to the other end of the rotating plate (317). A connecting pipe is fixedly connected inside the sealing tube (3). The right end inside the annular sealing groove (35) is connected to the left end inside the square groove (313) through the connecting pipe.

3. The prefabricated butterfly-shaped optical cable quick connector according to claim 1, characterized in that: The end of the annular sealing groove (35) away from the annular column (33) is connected to the interior of the annular airbag (31) through a vent pipe (37); the surface of the annular airbag (31) extends to the interior of the slot (32); and the diameter of the sealing tube (3) at one end close to the insertion tube (2) is larger than the diameter of the other end.

4. The prefabricated butterfly-shaped optical cable quick connector according to claim 1, characterized in that: The interior of the annular sliding groove (39) is connected to the interior of the annular sealing groove (35) via a connecting pipe (38), and the annular column (33) and the sealing pipe (3) are sealed and slidably connected.

5. The prefabricated butterfly-shaped optical cable quick connector according to claim 2, characterized in that: The silica gel block (318) is cylindrical, a long groove is provided inside the sealing tube (3), the gear (316), the rotating plate (317) and the silica gel block (318) are all rotatably connected inside the long groove, and the long groove is connected to the inside of the slot (32).

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