CN114488442B

CN114488442B - Protective sleeve of double-core tail fiber

Info

Publication number: CN114488442B
Application number: CN202111596218.4A
Authority: CN
Inventors: 梁树伟; 蔡星丹; 吴晓萍
Original assignee: Jiangsu Yongding Optoelectronic Technology Co ltd
Current assignee: Jiangsu Yongding Optoelectronic Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-05-09
Anticipated expiration: 2041-12-24
Also published as: CN114488442A

Abstract

The application relates to a protective sleeve of a double-core tail fiber, which relates to the technical field of tail fiber protective structures and comprises an anti-bending sleeve and an end block; the end block is arranged at one end of the anti-bending sleeve, a through passage which is correspondingly communicated with the inner cavity of the anti-Qu Taotong is arranged on the end block in a penetrating manner, the anti-bending sleeve and the through passage are used for allowing the tail fiber body of the dual-core tail fiber to pass through, and one end of the end block, which is far away from the anti-bending sleeve, is used for being connected with the connecting end of the dual-core tail fiber. The utility model has the effect of protecting the tail fiber body through the anti-bending sleeve, and reducing the breakage phenomenon of the tail fiber body caused by bearing.

Description

Protective sleeve of double-core tail fiber

Technical Field

The application relates to the technical field of tail fiber protection structures, in particular to a protection sleeve of a double-core tail fiber.

Background

The tail fiber is an optical cable fiber core which is easy to break and weak in tensile property, one end of the tail fiber is provided with a connecting end head, and the tail fiber is connected with other optical cable fiber cores through welding so as to be used in data transceiver devices such as couplers, optical fiber transceivers and the like. The tail fiber is mostly divided into a single-mode tail fiber and a multimode tail fiber, wherein the double-core tail fiber is one of the common multimode tail fibers.

In the actual production of the dual-core tail fiber, the tail fiber comprises a tail fiber body and a connecting end head arranged at one end of the tail fiber body. The outer fringe wall of tail fiber body just is the one end that is close to the connection end often can roll up round protection sticky tape, receive the bundle tail fiber body through the protection sticky tape to reduce the tail fiber body and be close to the one end of connection end and appear the circumstances of rupture because of bearing the weight of connection end.

However, the protection tape has limited strength of the tail fiber, and is difficult to ensure that the end of the tail fiber close to the connecting end is not broken after long-time use, so the protection tape needs to be improved.

Disclosure of Invention

In order to solve the problem that one end of the tail fiber close to the connecting end is easy to break, the application provides a protective sleeve of a double-core tail fiber.

The application provides a protective sleeve of twin-core tail fiber adopts following technical scheme:

a protective sleeve of a double-core tail fiber comprises an anti-bending sleeve and an end block; the end block is arranged at one end of the anti-bending sleeve, a through passage which is correspondingly communicated with the inner cavity of the anti-Qu Taotong is arranged on the end block in a penetrating manner, the anti-bending sleeve and the through passage are used for allowing the tail fiber body of the dual-core tail fiber to pass through, and one end of the end block, which is far away from the anti-bending sleeve, is used for being connected with the connecting end of the dual-core tail fiber.

By adopting the technical scheme, the protection device Qu Taotong is sleeved on the tail fiber body so as to receive the tail fiber body; the end block is connected with the anti-bending sleeve and the connecting end simultaneously, so that the position stability of the anti-bending sleeve on the tail fiber body is ensured, and the phenomenon that the tail fiber body is broken due to overweight of the connecting end is reduced.

In a specific embodiment, the end of the end block away from the anti-bending sleeve is glued and fixed to the connecting end of the dual-core pigtail.

Through adopting above-mentioned technical scheme, after the tip piece is glued fixedly with the connection end, joint strength is ensured to some extent, has reduced the phenomenon that the tip piece breaks away from the connection end, simultaneously, the operating personnel of being convenient for fix tip piece and connection end fast.

In a specific embodiment, the anti-buckling sleeve is integrally formed with the end block.

Through adopting above-mentioned technical scheme, integrated into one piece prevent bending sleeve and tip piece joint strength height, be difficult for appearing connecting not hard up phenomenon, ensured to prevent bending sleeve to the stability of accepting of tail fiber body, improved the protection effect to the tail fiber body.

In a specific implementation manner, a locking groove is formed in the side wall, away from the connecting end of the dual-core tail fiber, of the end block, and one end, close to the end block, of the anti-bending sleeve is connected in the locking groove in a threaded mode.

Through adopting above-mentioned technical scheme, prevent bending sleeve threaded connection in the locking inslot, joint strength is big, and the connection convenience is high, has both ensured the protection stability of preventing bending sleeve to the pigtail body, has improved the connection convenience of preventing bending sleeve and tip piece again.

In a specific implementation mode, a butt joint assembly is arranged between the end block and the connecting end head of the double-core tail fiber, and the butt joint assembly comprises a lateral connecting plate and a fixing bolt; the side connection plates are arranged on two opposite sides of the connecting end of the double-core tail fiber, the end block is positioned between the two side connection plates, and the fixing bolts are used for enabling the side connection plates to be fixed on the end block.

By adopting the technical scheme, the contact area between the connecting end head and the end block is increased by the side plates, and the end block can be quickly fixed between the two side plates by the fixing bolts; meanwhile, the connecting structure between the end block and the side connecting plate is convenient for operators to detach quickly.

In a specific embodiment, a connection assembly is provided between the anti-buckling sleeve and the end block, the connection assembly comprising a connection unit comprising an elastic member and an abutment block; the opposite side walls of the anti-bending sleeve are respectively provided with an embedded groove, the elastic piece is arranged in the embedded grooves, and the abutting block is arranged at one end of each elastic piece in the length direction; the lateral wall that the end piece kept away from the connecting end of twin-core tail fiber is provided with the confession the grafting groove that prevents buckling sleeve support income, be provided with in the lateral wall of grafting groove and supply the joint groove that the butt piece supported income.

By adopting the technical scheme, after the elastic piece is stressed and compressed, the abutting block can be completely abutted into the embedded groove, so that the anti-bending sleeve can be conveniently and rapidly abutted into the inner cavity of the inserting groove; after the elastic piece freely extends, the abutting block abuts against the inner cavity of the clamping groove, so that the buckling-preventing sleeve is positioned in the inserting groove, and the fast connection between the buckling-preventing sleeve and the end block is realized.

In a specific embodiment, the connection assembly further comprises a release unit comprising a pusher bar and a binding glue head; the opposite side walls of the end block are respectively provided with a preset channel in a penetrating way, and the inner cavity of the preset channel is communicated with the inner cavity of the clamping groove; the beam-converging rubber head is arranged on the outer side wall of the end block, one end of the pushing rod is arranged in the preset channel, and the other end of the pushing rod is arranged in the beam-converging rubber head.

By adopting the technical scheme, an operator presses the pushing rod outside the end block, so that one end of the pushing rod, which is far away from the binding rubber head, is propped into the clamping groove, and the propping block is pushed to be completely contracted into the embedded groove, so that the buckling-preventing sleeve is separated from the inserting groove; the flexible characteristic of the bundling rubber head improves the comfort level of pushing the pushing rod by an operator.

In a specific implementation manner, a containing groove is formed in the side wall of the clamping groove around the periphery of the preset channel, an anti-falling plate is arranged on the outer edge wall of the pushing rod, and the anti-falling plate is positioned in the containing groove; and a limiting plate is further arranged in the side wall of the accommodating groove, and the propped limiting plate and the anti-falling plate are magnetically attracted.

Through adopting above-mentioned technical scheme, anticreep board and limiting plate magnetism inhale the back mutually, have limited the position of pushing rod in predetermineeing the passageway, have reduced pushing rod free displacement's phenomenon, and then have ensured the joint stability of butt piece at the joint groove, have ensured the position stability of anti-bending sleeve in the jack groove.

In a specific embodiment, the connection assembly further comprises a tightening unit comprising an interference; the interference piece is arranged in the inserting groove and is in interference fit between the end block and the anti-bending sleeve.

Through adopting above-mentioned technical scheme, the interference piece supports tightly between tip piece and the sleeve of buckling preventing through self compression deformation, has improved the connection compactness of buckling preventing the sleeve in the spliced groove.

In summary, the present application has the following beneficial technical effects:

1. the protection Qu Taotong is sleeved on the tail fiber body so as to receive the tail fiber body; the end block is connected with the anti-bending sleeve and the connecting end at the same time, so that the position stability of the anti-bending sleeve on the tail fiber body is ensured, and the phenomenon that the tail fiber body is broken due to overweight of the connecting end is reduced;

2. after the elastic piece is stressed and compressed, the abutting block can completely abut into the embedded groove, so that the anti-bending sleeve can conveniently and rapidly abut into the inner cavity of the inserting groove; after the elastic piece freely extends, the abutting block abuts against the inner cavity of the clamping groove, so that the buckling-preventing sleeve is positioned in the inserting groove, and the fast connection between the buckling-preventing sleeve and the end block is realized.

Drawings

FIG. 1 is a schematic structural diagram of a dual-core pigtail protective sleeve according to embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a dual-core pigtail protective sleeve according to embodiment 2 of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a dual-core pigtail protective sleeve according to embodiment 3 of the present application;

FIG. 5 is a schematic vertical cross-sectional view of the connection of the anti-buckling sleeve and the end block according to an embodiment of the present application;

fig. 6 is an enlarged schematic view of the portion B in fig. 5.

Reference numerals illustrate:

1. a pigtail body; 11. a connecting end; 2. a shield Qu Taotong; 21. a threaded boss; 22. an embedded groove; 3. an end block; 31. a pass-through channel; 32. a locking groove; 33. a plug-in groove; 34. a clamping groove; 35. presetting a channel; 36. a receiving groove; 361. a limiting plate; 4. a docking assembly; 41. a lateral connecting plate; 42. a fixing bolt; 5. a connection assembly; 6. a connection unit; 61. an elastic member; 62. an abutment block; 7. a tightening unit; 71. an interference piece; 8. a releasing unit; 81. a pushing rod; 811. an anti-drop plate; 82. and (5) bundling the glue head.

Detailed Description

The embodiment of the application discloses a protective sleeve of a double-core tail fiber.

The present application is described in further detail below in conjunction with figures 1-6.

Example 1

Referring to fig. 1, the protective sleeve comprises a buckling prevention sleeve 2 and an end block 3. In this embodiment, the outer circumferential dimension of the end block 3 is larger than the outer diameter dimension of the buckling preventing sleeve 2, and the end block 3 is integrally formed at one end in the longitudinal direction of the buckling preventing sleeve 2.

Referring to fig. 1, the inner diameter of the inner cavity of the anti-bending sleeve 2 is matched with the outer diameter of the tail fiber body 1 of the dual-core tail fiber, and a through passage 31 is arranged on the end block 3 in a penetrating manner. In this embodiment, the central axis of the passage 31 is collinear with the central axis of the anti-buckling sleeve 2, and the inner diameter of the passage 31 is adapted to the inner diameter of the inner cavity of the anti-buckling sleeve 2.

Referring to fig. 1, an operator sequentially passes through the passing channel 31 and the inner cavity of the anti-bending sleeve 2 to make the end block 3 prop against the connecting end 11 of the dual-core tail fiber and fix the dual-core tail fiber in an adhesive manner, and then receives the tail fiber body 1 through the anti-bending sleeve 2, so that the phenomenon that one end, close to the connecting end 11, of the tail fiber body 1 is broken due to bearing is reduced.

The implementation principle of the protective sleeve of the double-core tail fiber disclosed by the embodiment of the application is as follows: the integrally formed end block 3 has high connection strength with the anti-bending sleeve 2, and the tail fiber body 1 can conveniently and rapidly pass through. After the end block 3 is glued and fixed with the connecting end 11, the tail fiber body 1 is received through the anti-bending sleeve 2, so that the phenomenon that one end of the tail fiber body 1, which is close to the connecting end 11, is broken due to bearing is reduced.

Example 2

This embodiment differs from embodiment 1 in that, with reference to fig. 2, the buckling restrained sleeve 2 is detachably connected to the end block 3.

Referring to fig. 3, the side wall of the end block 3 remote from the connecting head 11 is provided with a locking groove 32 around the periphery of the passage 31, the locking groove 32 being a screw groove in this embodiment. The outer edge of the anti-bending sleeve 2 is integrally formed with a plurality of thread protrusions 21, and the thread protrusions 21 are positioned at one end, close to the end block 3, of the anti-bending sleeve 2. The end of the anti-bending sleeve 2 near the end block 3 is screwed in the locking groove 32 through the threaded bulge 21, so that the anti-bending sleeve 2 is connected with the end block 3.

The implementation principle of the protective sleeve of the double-core tail fiber disclosed by the embodiment of the application is as follows: the tail fiber body 1 passes through the passing channel 31 to fix the end block 3 and the connecting end 11 in an adhesive manner. Then, the pigtail body 1 passes through the cavity of the anti-bending sleeve 2, and finally, the anti-bending sleeve 2 is screwed in the locking groove 32 through the threaded protrusion 21. The anti-bending sleeve 2 and the end block 3 which are detachably connected can be separately installed on the tail fiber body 1, so that the installation convenience is improved, and an operator can conveniently replace the anti-bending sleeve 2.

Example 3

The difference between this embodiment and embodiment 2 is that, referring to fig. 4 and 5, the end block 3 is detachably connected to the connection terminal 11, and a connection assembly 5 is disposed between the end block 3 and the connection terminal 11, and the connection terminal 11 is detachably connected to the end block 3 through the connection assembly 5.

Referring to fig. 4, a docking assembly 4 is provided between the end block 3 and the connection terminal 11, and the docking assembly 4 includes a lateral plate 41 and a fixing bolt 42. In this embodiment, the number of the side boards 41 may be two, the two side boards 41 are integrally formed on two opposite sides of the connection end 11, and the pigtail body 1 is located between the two side boards 41.

Referring to fig. 4, the end block 3 is abutted between the two side plates 41, and the fixing bolts 42 fixedly connect the side plates 41 and the end block 3 to fix the end block 3 between the two side plates 41.

Referring to fig. 5, a connection assembly 5 is provided between the anti-buckling sleeve 2 and the end block 3, and the connection assembly 5 includes a connection unit 6, an abutting unit 7, and a releasing unit 8.

Referring to fig. 5, the connection unit 6 is used to connect the anti-buckling sleeve 2 with the end block 3, and the connection unit 6 includes an elastic member 61 and abutment blocks 62, and in this embodiment, the number of elastic members 61 may be two, and the number of abutment blocks 62 is equal to the number of elastic members 61. The opposite side walls of the anti-bending sleeve 2 are respectively provided with an embedded groove 22, and the two embedded grooves 22 are positioned at one end of the anti-bending sleeve 2 close to the end block 3.

Referring to fig. 5, one end of the elastic member 61 is welded to the insertion groove 22, the elastic member 61 extends in the longitudinal direction of the insertion groove 22, and the abutting block 62 is welded to the other end of the elastic member 61. When the elastic member 61 is in the freely extended state, the elastic member 61 is completely located in the embedded groove 22, one end of the abutment block 62 is located in the embedded groove 22, and one end of the abutment block 62 away from the elastic member 61 is located outside the embedded groove 22. By pressing the abutting block 62, the operator compresses the elastic member 61 under force, so that the abutting block 62 can be completely abutted into the inner cavity of the embedded groove 22.

Referring to fig. 5, the end block 3 is provided with a socket groove 33 around the outer circumference of the passage 31 toward the sidewall of the buckling preventing sleeve 2, and the inner cavity of the socket groove 33 is sized to fit the outer circumference of the end block 3. The side walls of the inserting grooves 33 are respectively provided with clamping grooves 34 at two opposite sides, and the inner diameter size of the clamping grooves 34 is matched with the outer circumference size of the abutting blocks 62.

Referring to fig. 5, the operator presses the abutment block 62 into the cavity of the insertion groove 22, and then fully abuts the anti-buckling sleeve 2 into the cavity of the insertion groove 33. At this time, the embedded groove 22 and the clamping groove 34 correspond to each other, and the elastic member 61 freely extends to make the abutting block 62 abut against the inner cavity of the clamping groove 34, so that the buckling preventing sleeve 2 is connected with the end block 3.

Referring to fig. 5 and 6, the abutment unit 7 is used to increase the tightness of the connection of the anti-buckling sleeve 2 in the socket 33, the abutment unit 7 comprising an interference 71. In this embodiment, the interference member 71 is a rubber ring that is flexible in texture and easy to deform. The interference piece 71 is fixed on the inner side wall of the inserting groove 33 in an adhesive manner, and after the anti-bending sleeve 2 is propped into the inner cavity of the inserting groove 33, the interference piece 71 is compressed and deformed so as to be tightly matched between the anti-bending sleeve 2 and the end block 3.

Referring to fig. 5 and 6, the releasing unit 8 is used to disengage the anti-buckling sleeve 2 from the insertion groove 33 so that the operator can replace the anti-buckling sleeve 2, and the releasing unit 8 includes a pushing rod 81. The opposite side walls of the end block 3 are respectively provided with a preset channel 35, and the inner cavity of the preset channel 35 is communicated with the inner cavity of the clamping groove 34. The inner cavity size of the preset channel 35 is matched with the outer diameter size of the pushing rod 81, one end of the pushing rod 81 is inserted into the preset channel 35, and the other end of the pushing rod is positioned outside the end block 3.

Referring to fig. 6, the outer edge wall of the push rod 81 is integrally formed with a release preventing plate 811, and in this embodiment, the release preventing plate 811 is an iron plate. The side wall of the clamping groove 34 is internally provided with a containing groove 36 around the periphery of each preset channel 35, and the size of the inner cavity of the containing groove 36 is matched with the size of the periphery of the anti-falling plate 811 so as to enable the anti-falling plate 811 to be abutted. A limiting plate 361 is also glued and fixed in the side wall of the accommodating groove 36, and the limiting plate 361 is a magnetic plate.

Referring to fig. 6, when the pushing rod 81 is inserted into the preset channel 35 and the other end is located outside the end block 3, the anti-falling plate 811 is located in the receiving groove 36, and the anti-falling plate 811 and the limiting plate 361 abut against each other to magnetically attract each other, so as to define the position of the pushing rod 81 in the preset channel 35.

Referring to fig. 5, the releasing unit 8 further includes a binding glue head 82, in this embodiment, the binding glue head 82 is a rubber block, the binding glue head 82 is adhesively fixed on the outer sidewall of the end block 3, and one end of the pushing rod 81 located outside the end block 3 is adhesively fixed in the binding glue head 82.

Referring to fig. 5 and 6, when the anti-buckling sleeve 2 needs to be detached from the end block 3, the operator presses the tightening glue head 82, so that the pushing rod 81 slides towards the insertion groove 33. At this time, the anti-falling plate 811 is separated from the limiting plate 361, and the end of the pushing rod 81 away from the beam-shrinking glue head 82 is abutted into the inner cavity of the clamping groove 34 and pushes the abutting block 62 to displace, so that the elastic member 61 is compressed under force. When the pushing rod 81 is located at the position of the clamping groove 34 close to the side wall of the embedded groove 22, the abutting block 62 is completely retracted into the inner cavity of the embedded groove 22, and the operator can withdraw the anti-bending sleeve 2 from the inserting groove 33 for replacement.

The implementation principle of the protective sleeve of the double-core tail fiber disclosed by the embodiment of the application is as follows: the pigtail body 1 passes through the passing channel 31 first, so that the end block 3 is abutted between the two side connection plates 41, and then an operator fixedly connects the side connection plates 41 and the end block 3 through the fixing bolts 42.

The abutting block 62 is pressed until the abutting block 62 completely abuts against the embedded groove 22, so that one end, close to the end block 3, of the anti-bending sleeve 2 abuts against the inserting groove 33 until the embedded groove 22 and the inner cavity of the clamping groove 34 are formed, the elastic piece 61 freely stretches, the abutting block 62 abuts against the clamping groove 34, and the anti-bending sleeve 2 is positioned in the inserting groove 33. At this time, the interference piece 71 is pressed between the end block 3 and the buckling preventing sleeve 2 by compression deformation, so that the connection strength between the buckling preventing sleeve 2 and the end block 3 is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a protective sleeve of twin-core tail fiber which characterized in that: comprises a buckling-preventing sleeve (2) and an end block (3); the end block (3) is arranged at one end of the anti-Qu Taotong (2), a passing channel (31) which is correspondingly communicated with the inner cavity of the anti-Qu Taotong (2) is arranged on the end block (3) in a penetrating manner, the anti-Qu Taotong (2) and the passing channel (31) are used for allowing the tail fiber body (1) of the dual-core tail fiber to pass through, and one end, far away from the anti-Qu Taotong (2), of the end block (3) is used for being connected with the connecting end (11) of the dual-core tail fiber; one end, far away from the Qu Taotong (2), of the end block (3) is fixed with a connecting end (11) of the dual-core tail fiber in an adhesive manner; the protection Qu Taotong (2) and the end block (3) are integrally formed; or the side wall of the end block (3) far away from the connecting end (11) of the double-core tail fiber is provided with a locking groove (32), and one end of the anti-Qu Taotong (2) close to the end block (3) is in threaded connection with the locking groove (32); or a butt joint assembly (4) is arranged between the end block (3) and the connecting end (11) of the double-core tail fiber, and the butt joint assembly (4) comprises a lateral connecting plate (41) and a fixing bolt (42); the side connection plates (41) are arranged on two opposite sides of the connecting end (11) of the twin-core tail fiber, the end block (3) is arranged between the two side connection plates (41), and the fixing bolts (42) are used for enabling the side connection plates (41) to be fixed on the end block (3).

2. The dual-core pigtail protective sleeve of claim 1, wherein: a connecting assembly (5) is arranged between the anti-Qu Taotong (2) and the end block (3), the connecting assembly (5) comprises a connecting unit (6), and the connecting unit (6) comprises an elastic piece (61) and an abutting block (62); the opposite side walls of the anti-Qu Taotong (2) are respectively provided with an embedded groove (22), the elastic piece (61) is arranged in the embedded groove (22), and the abutting block (62) is arranged at one end of each elastic piece (61) in the length direction; the end block (3) is far away from the side wall of the connecting end (11) of the double-core tail fiber, an inserting groove (33) for the anti-Qu Taotong (2) to abut in is formed in the side wall of the inserting groove (33), and a clamping groove (34) for the abutting block (62) to abut in is formed in the side wall of the inserting groove.

3. The dual-core pigtail protective sleeve of claim 2, wherein: the connecting assembly (5) further comprises a loosening unit (8), and the loosening unit (8) comprises a pushing rod (81) and a binding rubber head (82); the opposite side walls of the end block (3) are respectively provided with a preset channel (35) in a penetrating way, and the inner cavity of the preset channel (35) is communicated with the inner cavity of the clamping groove (34); the beam-converging rubber head (82) is arranged on the outer side wall of the end block (3), one end of the pushing rod (81) is arranged in the preset channel (35), and the other end of the pushing rod is arranged in the beam-converging rubber head (82).

4. A dual-core pigtail protective sleeve according to claim 3, wherein: an accommodating groove (36) is formed in the side wall of the clamping groove (34) around the periphery of the preset channel (35), an anti-falling plate (811) is arranged on the outer edge wall of the pushing rod (81), and the anti-falling plate (811) is positioned in the accommodating groove (36); a limiting plate (361) is further arranged in the side wall of the accommodating groove (36), and the limiting plate (361) and the anti-falling plate (811) which are abutted against each other are magnetically attracted.

5. The dual-core pigtail protective sleeve of claim 2, wherein: the connecting assembly (5) further comprises a tightening unit (7), and the tightening unit (7) comprises an interference piece (71); the interference piece (71) is arranged in the inserting groove (33), and the interference piece (71) is in interference fit between the end block (3) and the anti-Qu Taotong (2).