Optical cable junction box

Abstract

The utility model relates to an optical cable junction box, and relates to the field of optical cable junction boxes, two ends of a lower box body are provided with jacks, joints are detachably and fixedly installed in the jacks, and the outer side walls of the joints are in threaded connection with sealing members; a locking piece is slidably installed in the sealing piece, the locking piece is arranged on the outer side of the optical cable in a sleeving mode, a limiting wall is formed in an inner cavity of the sealing piece, and the locking piece abuts against the position between the end of the connector and the limiting wall; a sealing groove is formed in the inner side of the sealing piece, the sealing groove is arranged in an inward-contracting mode in the direction away from the connector, a first sealing ring is installed in the sealing groove in a sliding mode, the optical cable is sleeved with the first sealing ring, and the first sealing ring is arranged among the locking piece, the groove wall of the sealing groove and the outer wall of the optical cable in an abutting mode. The sealing performance of the connection between the optical cable and the jack of the optical cable junction box can be improved.

Description

Technical Field

[0001] The present application relates to the field of optical cable junction boxes, and in particular to an optical cable junction box. Background Art

[0002] As the main transmission means of modern communication, optical cable communication plays an important role in modern network communication. As an important connection and protection equipment to ensure the safe operation of optical cable communication network, it is even more important for the optical cable junction box to have reliable internal structural parts.

[0003] When welding the ends of two optical cables, an optical cable junction box is often used to fix and seal the two optical cables. An optical cable junction box is also called an optical cable splicing box or an optical cable splicing package. It belongs to a mechanical pressure sealing joint system and is a splicing protection device that provides optical, sealing and mechanical continuity between adjacent optical cables. It is a splicing part that connects two or more optical cables together and has protective components.

[0004] In the prior art, a common optical cable junction box mainly comprises an upper box body and a lower box body. The upper box body is detachably mounted on the top of the lower box body by screws. Sockets for inserting optical cables are respectively provided at both ends of the lower box body. The optical cables are positioned by pressure plates fixed by screws at both ends of the lower box body. A fiber splicing tray is fixedly mounted in the lower box body. After the optical fibers at both ends of the two sections of optical cables are spliced ​​and hot-melt adhesive sleeves are installed, the operator can coil the optical fibers on the fiber splicing tray by the figure-8 fiber coiling method, and fix the hot-melt adhesive sleeve by the hot-melt adhesive sleeve fixing mechanism on the fiber splicing tray. After all the optical fibers are spliced, the operator fixes the upper box body and the lower box body by screws.

[0005] However, since the optical cable junction box is in an outdoor environment for a long time, water enters the optical cable junction box through the sockets at both ends of the lower box body, which can easily cause adverse effects on the optical fibers in the optical cable junction box. There is room for improvement. Utility Model Content

[0006] In order to improve the sealing performance of the connection between an optical cable and a socket of an optical cable junction box, the present application provides an optical cable junction box.

[0007] The present application provides an optical cable junction box adopting the following technical solution:

[0008] An optical cable junction box comprises a lower box body, wherein both ends of the lower box body are provided with sockets, a joint is detachably fixedly installed in the socket, and a sealing member is threadedly connected to the outer wall of the joint;

[0009] A locking piece is slidably installed in the sealing piece, the locking piece is sleeved on the outside of the optical cable, the inner cavity of the sealing piece is formed with a limiting wall, and the locking piece is tightly pressed between the end of the connector and the limiting wall;

[0010] A sealing groove is formed on the inner side of the sealing member, and the sealing groove is arranged inwardly in a direction away from the joint. A first sealing ring is slidably installed in the sealing groove, and the first sealing ring is sleeved on the outer side of the optical cable. The first sealing ring is tightly arranged between the locking member, the groove wall of the sealing groove and the outer wall of the optical cable.

[0011] By adopting the above technical solution, when fixing the end of the optical cable in the optical cable junction box, the user can pass the end of the optical cable through the sealing member, the locking member and the connector in advance, and adjust the length of the part of the optical cable extending out of the connector. The user installs the connector in the socket, fixes the connector on the lower box body, and fixes the end of the optical cable in the box body of the junction box; then, the user can screw the sealing member to move the sealing member toward the box body, and in the process of the sealing member moving toward the box body, the locking member in the sealing member moves toward the connector, and when the end of the locking member is pressed against the end of the connector, the first sealing ring is pressed against the locking member, the groove wall of the sealing groove and the outer wall of the optical cable, and the first sealing ring can seal the joint between the sealing member and the optical cable, which can effectively improve the sealing of the connection between the optical cable and the optical cable junction box.

[0012] Preferably, a clamping member is rotatably installed in the connector, the clamping member comprises a collar, one end of the collar close to the locking member is fixedly connected to a plurality of spring sheets, the plurality of spring sheets are evenly arranged in a circular array on the outside of the optical cable, and one side of the plurality of spring sheets close to the optical cable is respectively fixedly connected to an elastic protrusion;

[0013] The outer sides of the ends of the spring sheets are all rounded, and an extension groove is formed on the side of the locking piece close to the connector. The extension groove is inwardly arranged in a direction away from the connector, and the outer sides of several spring sheets are pressed against the inner wall of the extension groove, and several elastic protrusions are respectively pressed between several spring sheets and the outer side walls of the optical cable.

[0014] By adopting the above technical solution, when the user screws the seal, the groove wall of the extension groove of the locking piece applies pressure to the spring sheet, so that the spring sheet retracts inward toward the direction close to the optical cable, so that the elastic protrusion on the spring sheet presses against the outer wall of the optical cable, thereby achieving the technical effect of clamping and positioning the optical cable, and reducing the occurrence of the optical cable falling off due to external force.

[0015] Preferably, the joint comprises a connecting pipe portion, a connecting groove is provided in the sealing member, an external thread is provided on the outer side of the connecting pipe portion, an internal thread is provided on the inner wall of the connecting groove, and the sealing member is threadedly connected to the connecting pipe portion;

[0016] A sealing surface is formed on one side of the joint close to the seal, the connecting pipe portion is perpendicular to the sealing surface, and the end of the seal abuts against the sealing surface, an elastic convex ring is fixedly connected to the end of the seal close to the joint, a sealing ring groove is formed on the side wall of the sealing surface, and the elastic convex ring is tightly embedded in the sealing ring groove.

[0017] By adopting the above technical solution, the technical effect of threaded connection between the seal and the joint can be achieved through the connecting pipe; the elastic convex ring at the end of the seal is embedded and pressed tightly in the sealing ring groove, which can improve the sealing of the joint between the sealing surface of the seal and the joint.

[0018] Preferably, an extension tube portion is integrally formed on a side of the joint close to the seal, and the extension tube portion covers the outside of a joint between the sealing surface and the seal.

[0019] By adopting the above technical solution, the extension tube portion covers the outside of the joint between the sealing surface and the sealing member, which can further improve the sealing performance of the connection between the sealing member and the joint.

[0020] Preferably, the joint is formed with a connecting surface on one side close to the lower box body, the connecting surface is provided with a mounting ring groove, a second sealing ring is embedded in the mounting ring groove, and the second sealing ring is tightly pressed between the outer wall of the lower box body and the inner wall of the mounting ring groove.

[0021] By adopting the above technical solution, the second sealing ring is pressed tightly between the mounting ring groove and the outer side wall of the lower box body, which can improve the sealing performance of the connection between the joint and the outer side of the lower box body.

[0022] Preferably, the joint includes a mounting tube portion, the mounting tube portion passes through the socket and extends into the lower box body;

[0023] A locking nut is threadedly connected to the mounting tube portion, a side wall of the locking nut abuts against an inner wall of the lower box body, and the lower box body abuts tightly between the connecting surface and an outer side wall of the lower box body.

[0024] By adopting the above technical solution, the technical effect of detachable installation between the joint and the lower box body can be achieved by matching and using the installation pipe and the locking nut.

[0025] In summary, the optical cable junction box of the present application includes at least one of the following beneficial technical effects:

[0026] 1. When fixing the end of the optical cable in the optical cable junction box, the user can pass the end of the optical cable through the sealing member, the locking member and the joint in advance, and adjust the length of the part of the optical cable extending out of the joint. The user installs the joint in the socket, fixes the joint on the lower box body, and fixes the end of the optical cable in the box body of the junction box; then, the user can screw the sealing member to move the sealing member toward the box body. During the movement of the sealing member toward the box body, the locking member in the sealing member moves toward the joint. When the end of the locking member is pressed against the end of the joint, the first sealing ring is pressed against the locking member, the groove wall of the sealing groove and the outer wall of the optical cable. The first sealing ring can seal the joint between the sealing member and the optical cable, which can effectively improve the sealing of the connection between the optical cable and the optical cable junction box.

[0027] 2. When the user screws the seal, the groove wall of the extension groove of the locking piece applies pressure to the spring sheet, causing the spring sheet to retract inward toward the direction of the optical cable, so that the elastic protrusion on the spring sheet presses against the outer wall of the optical cable, thereby achieving the technical effect of clamping and positioning the optical cable and reducing the occurrence of the optical cable falling off due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of an embodiment of the present application for illustrating the overall structure of an optical cable junction box.

[0029] Figure 2 It is a schematic diagram used to illustrate the overall structure of the joint in an embodiment of the present application.

[0030] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle is mainly used to show the schematic diagram of the connection structure between the joint and the seal.

[0031] Explanation of the reference numerals: 1. lower box body; 11. socket; 2. joint; 21. connecting pipe; 22. sealing surface; 23. sealing ring groove; 24. extension pipe; 25. connecting surface; 26. mounting ring groove; 27. second sealing ring; 28. mounting pipe; 29. ​​locking nut; 3. sealing member; 31. limiting wall; 32. sealing groove; 33. connecting groove; 34. elastic convex ring; 4. locking member; 41. extension groove; 5. first sealing ring; 6. optical cable; 7. clamping member; 71. collar; 72. spring piece; 73. elastic protrusion. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] Example

[0034] The present application embodiment discloses an optical cable junction box. Figure 1 and Figure 2The optical cable 6 junction box includes a lower box body 1, and sockets 11 are provided at both ends of the lower box body 1. A joint 2 is detachably fixedly installed in the socket 11, and a sealing member 3 is threadedly connected on the outer wall of the joint 2; a locking member 4 is slidably installed in the sealing member 3, and the locking member 4 is sleeved on the outer side of the optical cable 6. The inner cavity of the sealing member 3 is formed with a limiting wall 31, and the locking member 4 is tightly pressed between the end of the joint 2 and the limiting wall 31; a sealing groove 32 is formed on the inner side of the sealing member 3, and the sealing groove 32 is arranged inwardly in a direction away from the joint 2, and a first sealing ring 5 is slidably installed in the sealing groove 32, and the first sealing ring 5 is sleeved on the outer side of the optical cable 6, and the first sealing ring 5 is tightly set between the locking member 4, the groove wall of the sealing groove 32 and the outer wall of the optical cable 6.

[0035] When fixing the end of the optical cable 6 in the optical cable 6 junction box, the user can pass the end of the optical cable 6 through the sealing member 3, the locking member 4 and the connector 2 in advance, and adjust the length of the portion of the optical cable 6 extending out of the connector 2. The user installs the connector 2 in the socket 11, and fixes the connector 2 on the lower box body 1 and fixes the end of the optical cable 6 in the box body of the junction box; then, the user can screw the sealing member 3 to move the sealing member 3 toward the box body. During the movement of the sealing member 3 toward the box body, the locking member 4 in the sealing member 3 moves toward the connector 2. When the end of the locking member 4 is pressed against the end of the connector 2, the first sealing ring 5 is pressed against the locking member 4, the groove wall of the sealing groove 32 and the outer wall of the optical cable 6. The first sealing ring 5 can seal the joint between the sealing member 3 and the optical cable 6, which can effectively improve the sealing of the connection between the optical cable 6 and the optical cable 6 junction box.

[0036] Reference Figure 2 A clamping member 7 is rotatably installed in the connector 2, and the clamping member 7 includes a ring 71. A plurality of spring pieces 72 are fixedly connected to one end of the ring 71 close to the locking member 4. The plurality of spring pieces 72 are evenly arranged in a circular array on the outside of the optical cable 6, and a plurality of spring pieces 72 are fixedly connected to one side close to the optical cable 6 with elastic protrusions 73.

[0037] The outer sides of the ends of the spring pieces 72 are all rounded, and an extension groove 41 is formed on the side of the locking piece 4 close to the connector 2. The extension groove 41 is arranged inwardly in the direction away from the connector 2. The outer sides of several spring pieces 72 are pressed against the inner wall of the extension groove 41, and several elastic protrusions 73 are respectively pressed between several spring pieces 72 and the outer side walls of the optical cable 6.

[0038] When the user screws the sealing member 3, the groove wall of the extension groove 41 of the locking member 4 applies pressure to the spring sheet 72, so that the spring sheet 72 retracts inward toward the direction close to the optical cable 6, so that the elastic protrusion 73 on the spring sheet 72 presses against the outer wall of the optical cable 6, thereby achieving the technical effect of clamping and positioning the optical cable 6 and reducing the possibility of the optical cable 6 falling off due to external force.

[0039] Reference Figure 2 and Figure 3 The joint 2 includes a connecting pipe portion 21, a connecting groove 33 is provided in the sealing member 3, an external thread is provided on the outer side of the connecting pipe portion 21, an internal thread is provided on the inner wall of the connecting groove 33, and the sealing member 3 is threadedly connected to the connecting pipe portion 21.

[0040] A sealing surface 22 is formed on one side of the joint 2 close to the seal 3, the connecting pipe portion 21 is perpendicular to the sealing surface 22, and the end of the seal 3 is against the sealing surface 22. An elastic convex ring 34 is fixedly connected to the end of the seal 3 close to the joint 2, and a sealing ring groove 23 is opened on the side wall of the sealing surface 22, and the elastic convex ring 34 is tightly embedded in the sealing ring groove 23.

[0041] The technical effect of threaded connection between the seal 3 and the joint 2 can be achieved through the connecting pipe part 21; the elastic convex ring 34 at the end of the seal 3 is embedded and pressed tightly in the sealing ring groove 23, which can improve the sealing performance of the joint between the seal 3 and the sealing surface 22 of the joint 2.

[0042] Reference Figure 2 The side of the joint 2 close to the seal 3 is integrally formed with an extension tube portion 24, and the extension tube portion 24 covers the outside of the seam between the sealing surface 22 and the seal 3. The extension tube portion 24 covers the outside of the seam between the sealing surface 22 and the seal 3, which can further improve the sealing performance of the connection between the seal 3 and the joint 2.

[0043] Reference Figure 2 A connecting surface 25 is formed on the side of the joint 2 close to the lower box body 1, and a mounting ring groove 26 is opened on the connecting surface 25. A second sealing ring 27 is embedded in the mounting ring groove 26, and the second sealing ring 27 is tightly pressed between the outer wall of the lower box body 1 and the inner wall of the mounting ring groove 26.

[0044] The second sealing ring 27 is pressed tightly between the mounting ring groove 26 and the outer side wall of the lower box body 1 , so as to improve the sealing performance of the connection between the joint 2 and the outer side of the lower box body 1 .

[0045] Reference Figure 2 The connector 2 includes a mounting tube portion 28, which passes through the socket 11 and extends into the lower box body 1; a locking nut 29 is threadedly connected to the mounting tube portion 28, and the side wall of the locking nut 29 abuts against the inner wall of the lower box body 1, and the lower box body 1 is tightly pressed between the connecting surface 25 and the outer wall of the lower box body 1.

[0046] By matching and using the mounting tube 28 and the locking nut 29 , a technical effect of detachable mounting between the connector 2 and the lower box body 1 can be achieved.

[0047] The implementation principle of an optical cable junction box in the embodiment of the present application is as follows: when fixing the end of the optical cable 6 in the optical cable 6 junction box, the user can pass the end of the optical cable 6 through the sealing member 3, the locking member 4 and the connector 2 in advance, and adjust the length of the portion of the optical cable 6 extending out of the connector 2. The user installs the connector 2 in the socket 11, and fixes the connector 2 on the lower box body 1 and fixes the end of the optical cable 6 in the box body of the junction box; then, the user can screw the sealing member 3 to move the sealing member 3 toward the direction close to the box body. During the process of the sealing member 3 moving toward the direction close to the box body, the locking member 4 in the sealing member 3 moves toward the direction close to the connector 2. When the end of the locking member 4 is When the first sealing ring 5 is pressed against the end of the connector 2, the first sealing ring 5 is pressed against the locking member 4, the groove wall of the sealing groove 32 and the outer wall of the optical cable 6. The first sealing ring 5 can seal the joint between the sealing member 3 and the optical cable 6, which can effectively improve the sealing of the connection between the optical cable 6 and the optical cable 6 junction box; when the user screws the sealing member 3, the groove wall of the extension groove 41 of the locking member 4 applies pressure to the spring sheet 72, so that the spring sheet 72 is retracted inwardly toward the direction close to the optical cable 6, so that the elastic protrusion 73 on the spring sheet 72 is pressed against the outer wall of the optical cable 6, which can achieve the technical effect of clamping and positioning the optical cable 6, and can reduce the occurrence of the optical cable 6 falling off due to external force.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical cable junction box, characterized in that: It comprises a lower box body (1), wherein both ends of the lower box body (1) are provided with sockets (11), a joint (2) is detachably fixedly installed in the socket (11), and a sealing member (3) is threadedly connected to the outer wall of the joint (2); A locking member (4) is slidably mounted inside the sealing member (3), the locking member (4) is sleeved on the outside of the optical cable (6), a limiting wall (31) is formed in the inner cavity of the sealing member (3), and the locking member (4) is tightly pressed between the end of the connector (2) and the limiting wall (31); A sealing groove (32) is formed on the inner side of the sealing member (3), and the sealing groove (32) is arranged inwardly in a direction away from the joint (2). A first sealing ring (5) is slidably installed in the sealing groove (32), and the first sealing ring (5) is sleeved on the outer side of the optical cable (6). The first sealing ring (5) is tightly arranged between the locking member (4), the groove wall of the sealing groove (32) and the outer wall of the optical cable (6).

2. The optical cable junction box according to claim 1, characterized in that: A clamping member (7) is rotatably mounted in the connector (2), the clamping member (7) comprising a collar (71), one end of the collar (71) close to the locking member (4) being fixedly connected to a plurality of spring pieces (72), the plurality of spring pieces (72) being evenly arranged in a circular array on the outside of the optical cable (6), and a plurality of spring pieces (72) having one side close to the optical cable (6) being fixedly connected to an elastic protrusion (73); The outer sides of the ends of the spring sheets (72) are all rounded, and an extension groove (41) is formed on the side of the locking member (4) close to the connector (2). The extension groove (41) is arranged inwardly in a direction away from the connector (2). The outer sides of a number of the spring sheets (72) are pressed against the inner wall of the extension groove (41), and a number of the elastic protrusions (73) are respectively pressed between a number of the spring sheets (72) and the outer side walls of the optical cable (6).

3. An optical cable junction box according to claim 2, characterized in that: The joint (2) comprises a connecting pipe portion (21), a connecting groove (33) is provided in the sealing member (3), an external thread is provided on the outer side of the connecting pipe portion (21), an internal thread is provided on the inner wall of the connecting groove (33), and the sealing member (3) is threadedly connected to the connecting pipe portion (21); A sealing surface (22) is formed on one side of the joint (2) close to the sealing member (3); the connecting pipe portion (21) is perpendicular to the sealing surface (22); and the end of the sealing member (3) abuts against the sealing surface (22); an elastic convex ring (34) is fixedly connected to the end of the sealing member (3) close to the joint (2); a sealing ring groove (23) is formed on the side wall of the sealing surface (22); and the elastic convex ring (34) is tightly embedded in the sealing ring groove (23).

4. The optical cable junction box according to claim 3, characterized in that: An extension tube portion (24) is integrally formed on one side of the joint (2) close to the sealing member (3), and the extension tube portion (24) covers the outside of the joint between the sealing surface (22) and the sealing member (3).

5. The optical cable junction box according to claim 4, characterized in that: A connecting surface (25) is formed on a side of the joint (2) close to the lower box body (1), and a mounting ring groove (26) is provided on the connecting surface (25). A second sealing ring (27) is embedded and installed in the mounting ring groove (26), and the second sealing ring (27) is tightly pressed between the outer wall of the lower box body (1) and the inner wall of the mounting ring groove (26).

6. The optical cable junction box according to claim 5, characterized in that: The joint (2) comprises a mounting pipe portion (28), wherein the mounting pipe portion (28) passes through the socket (11) and extends into the lower box body (1); A locking nut (29) is threadedly connected to the mounting tube portion (28), the side wall of the locking nut (29) abuts against the inner wall of the lower box body (1), and the lower box body (1) abuts between the connecting surface (25) and the outer wall of the lower box body (1).

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