Universal submarine optical cable connector box

Abstract

The utility model discloses a universal submarine optical cable connector box which comprises an upper box cover and a lower box cover, two ends of the upper box cover and two ends of the lower box cover are respectively provided with a plurality of semi-spherical holes, a same ball shaft is rotatably installed in every two semi-spherical holes corresponding in position, one end of each ball shaft is connected with a threading pipe, the outer wall of one end of each threading pipe is provided with an external thread, and the outer wall of the other end of each threading pipe is provided with an external thread. According to the utility model, an optical fiber passes through the threading pipe and the ball journal, and the light is locked in the threading pipe through the sleeve, so that the positions of the ball journal and the sleeve on the light are fixed, and after the ball journal and the sleeve are combined through the upper box cover and the lower box cover, the light can be fixed in the threading pipe. The ball hole is formed by the two semispherical holes, so that the ball shaft can be freely adjusted in the ball hole under the action of external force, the hard impact of seabed ocean current on the connecting part of the connector box and the optical fiber is relatively reduced, and the problem that the optical fiber is bent and broken is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cable junction boxes, in particular to a universal submarine optical cable junction box. Background Art

[0002] The optical cable junction box is a connecting part that connects two or more optical cables together and has protective components. It is a must-use in the construction of optical cable line projects and is one of the most important equipment. The quality of the optical cable junction box directly affects the quality of the optical cable line and the service life of the optical cable line.

[0003] The existing optical cable junction box and the optical cable are usually rigidly connected, which can easily cause the connection parts to bend and break under the impact of submarine currents. In addition, the existing bolt and nut connection method reduces the installation and removal efficiency of the junction box, resulting in low maintenance efficiency. Therefore, a universal submarine optical cable junction box is needed to meet the demand. Utility Model Content

[0004] The purpose of the utility model is to provide a universal submarine optical cable joint box to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal submarine optical cable joint box, comprising an upper box cover and a lower box cover, both ends of the upper box cover and the lower box cover are provided with a plurality of hemispherical holes, the same ball shaft is rotatably installed in the hemispherical holes corresponding to every two positions, one end of the ball shaft is connected to a threading tube, an outer wall of one end of the threading tube is provided with an external thread, a sleeve is threadedly connected to the external thread, a plurality of separation grooves are provided on the outer wall of the threading tube located at the external thread part, first extension plates are provided on the outer walls of both sides of the upper box cover, a plurality of first notches are provided on one side of the first extension plate, second extension plates are provided on both sides of the lower box cover, a plurality of second notches are provided on one side of the second extension plate, a bolt is rotatably installed in the second notch, the threaded section of the bolt is located in the first notch, a nut is threadedly connected to the bolt, and the nut is located above the first notch.

[0006] Preferably, a through hole is provided in the ball shaft, the through hole has the same inner diameter as the threading tube and is communicated with the threading tube.

[0007] Preferably, a tapered threaded hole is provided in the sleeve, and the external thread is adapted in the tapered threaded hole.

[0008] Preferably, an anti-slip groove is provided on the outer wall of the sleeve.

[0009] Preferably, the width of the second notch matches the width of the nut of the bolt.

[0010] Preferably, support shafts are provided on both ends of the nut of the bolt, and the two support shafts are rotatably installed in the inner walls on both sides of the same second slot.

[0011] Preferably, the width of the first notch matches the outer diameter of the threaded section of the bolt.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, the optical fiber passes through the threading tube and the ball shaft, and the light is locked in the threading tube via the sleeve, so that the position of the ball shaft and the sleeve on the light is fixed. After the upper box cover and the lower box cover are combined, the ball hole formed by the two hemispherical holes enables the ball shaft to be freely adjusted in the ball hole under the action of external force, which relatively reduces the hard impact of the submarine current on the connection part between the joint box and the optical fiber, and avoids the problem of bending and breaking of the optical fiber.

[0014] In the utility model, through the rotational connection of the bolt in the second slot and the clamping connection of the bolt in the first slot, the nut does not need to be completely screwed out from the threaded section of the bolt, and the bolt can be separated from the first slot, thereby releasing the lock between the upper box cover and the lower box cover, facilitating the disassembly and assembly of the joint box and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a universal submarine optical cable junction box proposed by the utility model;

[0016] Figure 2 This is a front cross-sectional structural schematic diagram of a universal submarine optical cable junction box proposed by the utility model;

[0017] Figure 3 A universal submarine optical cable joint box proposed by the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 This is a schematic diagram of the test cross-section structure of a universal submarine optical cable junction box proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of a first extension plate of a universal submarine optical cable joint box proposed by the utility model when viewed from above;

[0020] Figure 6 The utility model provides a schematic diagram of a top-view cross-sectional structure of a second extension plate of a universal submarine optical cable junction box.

[0021] In the figure: 1. upper box cover; 2. lower box cover; 3. hemispherical hole; 4. ball shaft; 5. threading tube; 6. external thread; 7. sleeve; 8. partition groove; 9. first extension plate; 10. first notch; 11. second extension plate; 12. second notch; 13. bolt; 14. nut; 15. through hole; 16. tapered threaded hole; 17. anti-slip groove; 18. support shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A universal submarine optical cable joint box comprises an upper box cover 1 and a lower box cover 2, both ends of the upper box cover 1 and the lower box cover 2 are provided with a plurality of hemispherical holes 3, the same ball shaft 4 is rotatably installed in the hemispherical holes 3 at every two corresponding positions, a threading tube 5 is connected to one end of the ball shaft 4, an outer wall of one end of the threading tube 5 is provided with an external thread 6, a sleeve 7 is threadedly connected to the external thread 6, and a plurality of separation grooves 8 are provided on the outer wall of the threading tube 5 located at the position of the external thread 6, first extension plates 9 are provided on the outer walls of both sides of the upper box cover 1, a plurality of first notches 10 are provided on one side of the first extension plate 9, second extension plates 11 are provided on both sides of the lower box cover 2, a plurality of second notches 12 are provided on one side of the second extension plate 11, a bolt 13 is rotatably installed in the second notch 12, the threaded section of the bolt 13 is located in the first notch 10, a nut 14 is threadedly connected to the bolt 13, and the nut 14 is located above the first notch 10.

[0024] The optical fiber is passed through the sleeve 7, and through the threading tube 5 and the ball shaft 4, and the sleeve 7 is screwed on the external thread 6 of the threading tube 5. The outer wall of the sleeve 7 is divided into several parts through the separation groove 8. When the sleeve 7 is screwed, the several outer walls have a wrapping and clamping effect on the outer wall of the optical fiber, so that the threading tube 5 is fixed on the optical fiber. The ball shaft 4 is placed in the hemispherical hole 3 of the lower box cover 2, and the upper box cover 1 is covered. The bolt 13 is rotated along the opening direction of the second notch 12, so that the threaded section of the bolt 13 is embedded in the first notch 10. The nut 14 is located above the first extension plate 9, and the nut 14 is screwed so that the nut 14 and the bolt 1 3, so that the first extension plate 9 and the second extension plate 11 are fixed thereto, thereby realizing the combined fixation between the upper box cover 1 and the lower box cover 2. The ball shaft 4 can be freely adjusted in the ball hole formed by the two hemispherical holes 3 under the action of external force, which relatively reduces the hard impact of the submarine current on the connection part between the junction box and the optical fiber, avoids the problem of optical fiber bending and breaking, and the nut 14 does not need to be completely screwed out from the threaded section of the bolt 13, so that the bolt 13 can be separated from the driven first notch 10, thereby realizing the locking release between the upper box cover 1 and the lower box cover 2, facilitating the disassembly and assembly of the junction box, and improving the maintenance efficiency.

[0025] Specifically, in this embodiment, a through hole 15 is formed in the ball shaft 4. The through hole 15 has the same inner diameter as the threading tube 5 and is communicated with the threading tube 5, so as to provide space for the optical fiber to enter the splice box.

[0026] Specifically, in this embodiment, a tapered threaded hole 16 is provided in the sleeve 7, and the external thread 6 is adapted in the tapered threaded hole 16. The tapered threaded hole 16 enables the sleeve 7 to form a gathering effect on several outer walls of the threading tube 5 when being screwed, thereby clamping the optical fiber.

[0027] Specifically, in this embodiment, an anti-skid groove 17 is provided on the outer wall of the sleeve 7 to facilitate the rotation of the sleeve 7 and prevent slipping.

[0028] Specifically, in this embodiment, the width of the second notch 12 matches the width of the nut of the bolt 13 , so as to limit the shaking of the bolt 13 in the second notch 12 .

[0029] Specifically, in this embodiment, support shafts 18 are provided on both ends of the nut of the bolt 13. The two support shafts 18 are rotatably installed in the inner walls on both sides of the same second slot 12. The support shafts 18 realize the rotation direction of the bolt 13 based on the opening direction of the second slot 12, and provide support for the screwing of the nut 14, limiting the rotation of the bolt 13 following the screwing direction of the nut 14.

[0030] Specifically, in this embodiment, the width of the first notch 10 is adapted to the outer diameter of the threaded section of the bolt 13 , providing an engaging space for the threaded section of the bolt 13 and providing support for the nut 14 , thereby achieving fixation between the first extension plate 9 and the second extension plate 11 .

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A universal submarine optical cable joint box, comprising an upper box cover (1) and a lower box cover (2), characterized in that: A plurality of hemispherical holes (3) are provided at both ends of the upper box cover (1) and the lower box cover (2), and a same ball shaft (4) is rotatably mounted in each of the two corresponding hemispherical holes (3). A threading tube (5) is connected to one end of the ball shaft (4), and an external thread (6) is provided on the outer wall of one end of the threading tube (5). A sleeve (7) is threadedly connected to the external thread (6). A plurality of separation grooves (8) are provided on the outer wall of the threading tube (5) at the position of the external thread (6). The outer walls of both sides of the upper box cover (1) are provided with a plurality of hemispherical holes (3). A first extension plate (9) is provided, and a plurality of first notches (10) are opened on one side of the first extension plate (9); second extension plates (11) are provided on both sides of the lower box cover (2), and a plurality of second notches (12) are opened on one side of the second extension plate (11); bolts (13) are rotatably installed in the second notches (12), and the threaded section of the bolt (13) is located in the first notch (10); a nut (14) is threadedly connected to the bolt (13), and the nut (14) is located above the first notch (10).

2. The universal submarine optical cable junction box according to claim 1, characterized in that: The ball shaft (4) is provided with a through hole (15), the through hole (15) has the same inner diameter as the threading tube (5), and is communicated with the threading tube (5).

3. The universal submarine optical cable junction box according to claim 1, characterized in that: A tapered threaded hole (16) is provided in the sleeve (7), and the external thread (6) is adapted to fit in the tapered threaded hole (16).

4. The universal submarine optical cable junction box according to claim 1, characterized in that: An anti-slip groove (17) is provided on the outer wall of the sleeve (7).

5. The universal submarine optical cable junction box according to claim 1, characterized in that: The width of the second notch (12) is adapted to the width of the nut of the bolt (13).

6. The universal submarine optical cable junction box according to claim 1, characterized in that: Support shafts (18) are provided on both ends of the nut of the bolt (13), and the two support shafts (18) are rotatably mounted in the inner walls on both sides of the same second slot (12).

7. The universal submarine optical cable junction box according to claim 1, characterized in that: The width of the first notch (10) is adapted to the outer diameter of the threaded section of the bolt (13).

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