A sealing assembly for an optical cable splice closure

Abstract

This utility model discloses a sealing assembly for an optical cable splice closure, belonging to the technical field of optical cable splice closures. It includes a lower splice closure and an upper splice closure. Both ends of the lower splice closure have lower cable housings, and both ends of the upper splice closure have upper cable housings. Cable holes are provided at the ends of both the lower and upper cable housings. A circular sealing strip is fixedly fitted onto the top of the lower splice closure and the lower cable housing. An arc-shaped sealing groove is formed on the bottom surface of the upper splice closure and the upper cable housing. In this utility model, when the lower and upper splice closures are closed, the circular sealing strip at the top of the lower splice closure engages with the arc-shaped sealing groove at the bottom of the upper splice closure. Simultaneously, the outer sealing strip on the side of the upper splice closure fits over the side of the top of the lower splice closure. This double sealing of the joint between the lower and upper splice closures by the outer sealing strip and the circular sealing strip ensures the sealing effect of the optical cable splice closure.

Description

Technical Field

[0001] This utility model relates to the field of optical cable junction box technology, and more specifically, to a sealing component for an optical cable junction box. Background Technology

[0002] Optical fiber optic junction boxes are devices used to terminate, branch, distribute, and split optical fibers, and to provide protection and management for optical fiber cables. With the continuous development of optical communication, optical fiber junction boxes play a crucial role in cross-border and cross-provincial trunk lines, as well as at the ends of FTTH networks. Due to their excellent shock resistance, aging resistance, and high temperature resistance, they play an increasingly important role in the entire optical fiber network.

[0003] A search revealed that utility model patent CN218298609U discloses a sealing assembly for an optical cable splice box, including an upper splice box and a lower splice box rotatably mounted on the bottom of the upper splice box. Multiple external fixing rings are fixedly mounted on the exterior of both the upper and lower splice boxes. This sealing assembly for the optical cable splice box achieves the effect of convenient opening and installation of the optical cable through the rotatably mounted upper and lower splice boxes, the sealing rings seal the connection between the upper and lower splice boxes, and the external fixing rings facilitate the fixing of the upper and lower splice boxes and their connection to the outside. The optical cable passes through the optical cable fixing sleeve, exits from the conductor tube, and is fixed by the optical cable fixing plate, thus protecting the optical cable connection and preventing breakage. The threaded bolts secure the optical cable sealing ring and the optical cable mounted on the sealing cover to the mating groove, achieving a sealed connection between the optical cable and the splice box.

[0004] However, the above patent still has the following shortcomings: relying solely on the sealing ring to seal between the upper and lower connector boxes is not very effective. Therefore, we propose a sealing component for optical cable connector boxes. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a sealing component for optical cable junction boxes.

[0006] To solve the above problems, this utility model adopts the following technical solution: a sealing assembly for an optical cable splice box, comprising a lower splice box and an upper splice box. Both ends of the lower splice box are provided with a lower cable housing, and both ends of the upper splice box are provided with an upper cable housing. Cable holes are provided at the ends of both the lower and upper cable housings. A circular sealing strip is fixedly fitted onto the top of the lower splice box and the lower cable housing. An arc-shaped sealing groove is formed on the bottom surface of the upper splice box and the upper cable housing. The top end of the circular sealing strip is fitted into the inner cavity of the arc-shaped sealing groove. Two supports are provided in the inner cavity of the lower splice box. The mechanism includes fixing mechanisms on both sides of the lower connector box and the upper connector box. External sealing strips are fixedly connected to both sides of the upper connector box and the upper cable housing. The bottom ends of both external sealing strips extend to the sides of the lower connector box and the lower cable housing. The inner sides of the external sealing strips are in contact with the outer sides of the lower connector box. Semi-circular rubber seats are fixedly fitted into the inner cavities of both the lower and upper cable housings. Each semi-circular rubber seat has a first cable clamping groove. A support plate is fixedly fitted into the inner cavity of the lower cable housing. A cable tube is fixedly fitted onto the support plate. A silicone ring is fitted into the inner cavity of each cable tube.

[0007] As a preferred embodiment of this utility model, the support mechanism includes a support base fixedly connected to the bottom of the inner cavity of the lower connector box. A lower cable clamping rubber block is fixedly sleeved on the top of the support base. Two screw holes are provided on the top surface of the support base. A fixing cover is provided on the top of the support base. An upper cable clamping rubber block is provided at the bottom of the fixing cover. Mounting holes are provided at both ends of the fixing cover. A first bolt is sleeved in the inner cavity of the mounting hole. The bottom end of the first bolt is threaded into the inner cavity of the screw hole.

[0008] As a preferred embodiment of this utility model, the fixing mechanism includes a lower fixing seat fixedly connected to the side of the lower connector box and an upper fixing seat fixedly connected to the side of the upper connector box. Two threaded tubes are fixedly sleeved on the lower fixing seat, and two fixing tubes are fixedly sleeved on the upper fixing seat. The inner cavity of each fixing tube is fitted with a second bolt, and the bottom end of the second bolt is threaded into the inner cavity of the threaded tube.

[0009] In a preferred embodiment of this utility model, the cable threading hole, the first cable clamping groove, the silicone ring, and the lower cable clamping rubber block are arranged concentrically.

[0010] In a preferred embodiment of this utility model, the top surface of the lower connector box and the bottom surface of the upper connector box are in contact with each other, and the outer diameter of the circular sealing strip and the inner diameter of the arc-shaped sealing groove are equal.

[0011] In a preferred embodiment of this utility model, the outer diameter of the support plate is equal to the inner diameter of the upper cable shell.

[0012] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, when the lower connector box and the upper connector box are closed and connected, the circular sealing strip at the top of the lower connector box is inserted into the arc-shaped sealing groove at the bottom of the upper connector box, and at the same time, the outer sealing strip on the side of the upper connector box is fitted onto the side of the top of the lower connector box, thereby using the outer sealing strip and the circular sealing strip to double seal the joint between the lower connector box and the upper connector box, ensuring the sealing effect of the optical cable connector box.

[0013] (2) In this utility model, when the optical cable is inserted into the inner cavity of the lower junction box and the upper junction box, the side of the optical cable is sealed by two semi-circular rubber seats and silicone rings respectively, so as to ensure the sealing between the optical cable junction box and the optical cable. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 is an exploded view of the overall structure of this utility model.

[0016] Figure 3 is a structural schematic diagram of the lower connector box of this utility model.

[0017] Figure 4 is a structural schematic diagram of the upper connector box of this utility model.

[0018] Figure 5 is a schematic diagram of the structure of the fixing cover of this utility model.

[0019] The following are the labels in the diagram: 1. Lower junction box; 2. Upper junction box; 3. Fixing mechanism; 4. Circular sealing strip; 5. Arc-shaped sealing groove; 6. Outer sealing strip; 7. Cable hole; 8. Semi-circular rubber seat; 9. First cable clamping groove; 10. Support mechanism; 11. Lower cable shell; 12. Upper cable shell; 13. Support base; 14. Lower cable clamping rubber block; 15. Screw hole; 16. Fixing cover; 17. Upper cable clamping rubber block; 18. Mounting hole; 19. First bolt; 20. Lower fixing seat; 21. Upper fixing seat; 22. Threaded tube; 23. Fixing tube; 24. Second bolt; 25. Support plate; 26. Cable tube; 27. Silicone ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "third," etc., are used interchangeably with "second."

[0022] The number "two" is used only to describe the purpose and should not be interpreted as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0024] Please refer to Figures 1-5. A sealing assembly for an optical cable splice box includes a lower splice box 1 and an upper splice box 2. Both ends of the lower splice box 1 are provided with a lower cable housing 11, and both ends of the upper splice box 2 are provided with an upper cable housing 12. Both the lower cable housing 11 and the upper cable housing 12 have cable through holes 7 at their ends. A circular sealing strip 4 is fixedly fitted onto the top of the lower splice box 1 and the lower cable housing 11. An arc-shaped sealing groove 5 is formed on the bottom surface of the upper splice box 2 and the upper cable housing 12. The top end of the circular sealing strip 4 is fitted into the inner cavity of the arc-shaped sealing groove 5. Two support mechanisms 10 are provided in the inner cavity of the lower splice box 1. Fixing mechanisms 3 are provided on both sides of the lower splice box 1 and the upper splice box 2. Outer sealing strips 6 are fixedly connected to both sides of the upper splice box 2 and the upper cable housing 12. The bottom ends of the two outer sealing strips 6 extend to the lower splice box 1 and the lower cable housing 11. On the side, the inner side of the outer sealing strip 6 and the outer side of the lower connector box 1 are attached to each other. The inner cavities of the lower cable shell 11 and the upper cable shell 12 are both fixedly fitted with semi-circular rubber seats 8. The semi-circular rubber seats 8 are each provided with a first wire clamping groove 9. The inner cavity of the lower cable shell 11 is fixedly fitted with a support plate 25. The support plate 25 is fixedly fitted with a cable tube 26. The inner cavity of the cable tube 26 is fitted with a silicone ring 27.

[0025] In this embodiment, the top surface of the lower junction box 1 is provided with a groove for fixing the circular sealing strip 4 so that the circular sealing strip 4 can be fixed in the groove, which can be fixed with glue.

[0026] Specifically, please refer to Figures 1 to 4. The support mechanism 10 includes a support base 13 fixedly connected to the bottom of the inner cavity of the lower connector box 1. A lower cable clamping rubber block 14 is fixedly sleeved on the top of the support base 13. Two screw holes 15 are provided on the top surface of the support base 13. A fixing cover 16 is provided on the top of the support base 13. An upper cable clamping rubber block 17 is provided at the bottom of the fixing cover 16. Mounting holes 18 are provided at both ends of the fixing cover 16. A first bolt 19 is sleeved in the inner cavity of the mounting hole 18. The bottom end of the first bolt 19 is threaded into the inner cavity of the screw hole 15.

[0027] In this embodiment, the lower cable clamping rubber block 14 and the upper cable clamping rubber block 17 have the same inner diameter and are also in the same position, ensuring that the lower cable clamping rubber block 14 and the upper cable clamping rubber block 17 can squeeze the optical cable to align and fix it.

[0028] Specifically, please refer to Figures 2, 3 and 5. The fixing mechanism 3 includes a lower fixing seat 20 fixedly connected to the side of the lower connector box 1 and an upper fixing seat 21 fixedly connected to the side of the upper connector box 2. Two threaded tubes 22 are fixedly sleeved on the lower fixing seat 20, and two fixing tubes 23 are fixedly sleeved on the upper fixing seat 21. The inner cavity of each fixing tube 23 is fitted with a second bolt 24, and the bottom end of the second bolt 24 is threaded into the inner cavity of the threaded tube 22.

[0029] In this embodiment, the lower connector box 1 and the upper connector box 2 are fixed together by the cooperation of the fixing pipe 23, the threaded pipe 22 and the second bolt 24.

[0030] Specifically, please refer to Figure 3, where the cable hole 7, the first cable clamping groove 9, the silicone ring 27, and the lower cable clamping rubber block 14 are arranged concentrically.

[0031] In this embodiment, the optical cable can be smoothly inserted into the inner cavity of the lower connector box 1 and the upper connector box 2 through the cable insertion hole 7, the first cable clamping groove 9, the silicone ring 27, and the lower cable clamping rubber block 14. In addition, the inner diameter of the cable insertion hole 7, the first cable clamping groove 9, the silicone ring 27, the lower cable clamping rubber block 14, and the upper cable clamping rubber block 17 is slightly smaller than the outer diameter of the optical cable to ensure that the optical cable can be squeezed and sealed.

[0032] Specifically, please refer to Figures 1, 3 and 4. The top surface of the lower junction box 1 and the bottom surface of the upper junction box 2 are in contact with each other, and the outer diameter of the circular sealing strip 4 and the inner diameter of the arc-shaped sealing groove 5 are equal.

[0033] In this embodiment, the sealing performance of the circular sealing strip 4 is ensured by fitting it into the inner cavity of the arc-shaped sealing groove 5, thereby ensuring the sealing performance between the lower connector box 1 and the upper connector box 2.

[0034] Specifically, please refer to Figures 3 and 4. The outer diameter of the support plate 25 is equal to the inner diameter of the upper cable shell 12.

[0035] In this embodiment, the top of the support plate 25 is ensured to be stably inserted into the inner cavity of the upper cable shell 12.

[0036] Working principle: In use, firstly, the optical cable is inserted through the upper cable-clamping rubber block 17 on the cable shell 11, the first cable-clamping groove 9 on the semi-circular rubber seat 8, and the silicone ring 27 inside the cable tube 26 from both ends of the lower junction box 1, so that the two optical cables are connected in the inner cavity of the lower junction box 1. Then, the optical cable is clamped into the lower cable-clamping rubber block 14 on the support base 13, and the fixing cover 16 is placed on the top of the support base 13, so that the upper part of the optical cable is clamped into the inner side of the upper cable-clamping rubber block 17. At this time, the first bolt 19 is inserted into the mounting hole 18, so that the first bolt 19... The bottom thread is installed into the screw hole 15 to fix the optical cable. Then, the upper connector box 2 is placed on top of the lower connector box 1. At this time, the circular sealing strip 4 at the top of the lower connector box 1 is inserted into the arc-shaped sealing groove 5 at the bottom of the upper connector box 2. At the same time, the outer sealing strip 6 on the side of the upper connector box 2 is inserted into the side of the lower connector box 1. The circular sealing strip 4 and the outer sealing strip 6 provide a double seal at the joint between the lower connector box 1 and the upper connector box 2. At the same time, the semi-circular rubber seat 8 in the inner cavity of the upper cable shell 12 and the semi-circular rubber seat 8 in the inner cavity of the lower cable shell 11 are in contact, so that the optical cable is inserted into the first cable clamping groove 9 on the two semi-circular rubber seats 8. At the same time, the top of the support plate 25 is inserted into the inner cavity of the upper cable shell 12. Finally, the second bolt 24 is inserted into the inner cavity of the fixing tube 23, so that the bottom thread of the fixing tube 23 is installed into the inner cavity of the threaded tube 22, thereby fixing the lower connector box 1 and the upper connector box 2.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A sealing assembly for an optical cable splice box, comprising a lower splice box (1) and an upper splice box (2), characterized in that: Both ends of the lower connector box (1) are provided with lower cable shells (11), and both ends of the upper connector box (2) are provided with upper cable shells (12). The ends of the lower cable shells (11) and the upper cable shells (12) are provided with cable holes (7). A circular sealing strip (4) is fixedly sleeved on the top of the lower connector box (1) and the lower cable shells (11). An arc-shaped sealing groove (5) is opened on the bottom surface of the upper connector box (2) and the upper cable shells (12). The top end of the circular sealing strip (4) is sleeved in the inner cavity of the arc-shaped sealing groove (5). The inner cavity of the lower connector box (1) is provided with two support mechanisms (10). Both sides of the lower connector box (1) and the upper connector box (2) are provided with fixing mechanisms (3). Both sides of the upper connector box (2) and the upper cable shell (12) are fixedly connected with outer sealing strips (6). The bottom ends of the two outer sealing strips (6) extend to the sides of the lower connector box (1) and the lower cable shell (11). The inner side of the outer sealing strip (6) and the outer side of the lower connector box (1) are in contact. The inner cavities of the lower cable shell (11) and the upper cable shell (12) are fixedly fitted with semi-circular rubber seats (8). The semi-circular rubber seats (8) are provided with first wire clamping grooves (9). The inner cavity of the lower cable shell (11) is fixedly fitted with a support plate (25). The support plate (25) is fixedly fitted with a cable tube (26). The inner cavity of the cable tube (26) is fitted with silicone rings (27).

2. The sealing assembly for an optical cable splice box according to claim 1, characterized in that: The support mechanism (10) includes a support base (13) fixedly connected to the bottom of the inner cavity of the lower connector box (1). A lower cable clamping rubber block (14) is fixedly sleeved on the top of the support base (13). Two screw holes (15) are provided on the top surface of the support base (13). A fixing cover (16) is provided on the top of the support base (13). An upper cable clamping rubber block (17) is provided at the bottom of the fixing cover (16). Mounting holes (18) are provided at both ends of the fixing cover (16). A first bolt (19) is sleeved in the inner cavity of the mounting hole (18). The bottom end of the first bolt (19) is threaded into the inner cavity of the screw hole (15).

3. A sealing assembly for an optical cable junction box according to claim 2, characterized in that: The fixing mechanism (3) includes a lower fixing seat (20) fixedly connected to the side of the lower connector box (1) and an upper fixing seat (21) fixedly connected to the side of the upper connector box (2). Two threaded tubes (22) are fixedly sleeved on the lower fixing seat (20), and two fixing tubes (23) are fixedly sleeved on the upper fixing seat (21). The inner cavity of each fixing tube (23) is fitted with a second bolt (24), and the bottom end of the second bolt (24) is threaded into the inner cavity of the threaded tube (22).

4. A sealing assembly for an optical cable junction box according to claim 2, characterized in that: The cable threading hole (7), the first cable clamping groove (9), the silicone ring (27), and the lower cable clamping rubber block (14) are arranged concentrically.

5. A sealing assembly for an optical cable junction box according to claim 1, characterized in that: The top surface of the lower connector box (1) and the bottom surface of the upper connector box (2) are in contact with each other, and the outer diameter of the circular sealing strip (4) and the inner diameter of the arc-shaped sealing groove (5) are equal.

6. A sealing assembly for an optical cable junction box according to claim 1, characterized in that: The outer diameter of the support plate (25) is equal to the inner diameter of the upper cable shell (12).

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