Waterproof optical fiber connector box
The waterproof fiber optic splice box with a three-layer sealing structure and screw-connecting rod design solves the problem of insufficient sealing, achieves efficient waterproof performance and stable optical cable transmission, and simplifies the installation and maintenance process.
Patent Information
- Application Number
- CN202422711141.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing waterproof optical fiber splice closures are not well sealed at the joints, resulting in poor waterproof performance. Moisture enters the closure and affects the transmission performance of the optical cable.
It adopts a three-layer sealing structure, including waterproof joints, sealing gel and fiber disc box design, combined with screw and connecting rod structure to achieve stable connection and sealing of the box body, and uses PC engineering plastic material to improve stability and wear resistance.
It improves the waterproof performance, ensures the transmission stability and communication quality of the optical cable, simplifies the installation and maintenance process, and improves the efficiency of optical fiber maintenance.
Smart Images
Figure CN223347091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof optical fiber splice boxes, in particular to a waterproof optical fiber splice box. Background Art
[0002] Fiber optic splice closure is a tool used to connect fiber optic cables. It connects two or more optical cables together and has a connecting part that protects components. It is a must-use equipment in the construction of optical cable line projects and is one of the most important equipment. At the same time, the quality of the optical cable splice closure directly affects the quality of the optical cable line and the service life of the optical cable line.
[0003] Existing waterproof fiber optic splice closures usually consist of an upper and lower box body, sealed with a sealing ring. Although this design meets basic connection and maintenance needs to a certain extent, there are problems with insufficient sealing at the joints, resulting in poor waterproof performance and water leakage; and the fiber optic fusion points and other key components lack effective waterproof protection measures. Once moisture enters the box, it is easy to cause the fusion points to become damp, affecting the transmission performance of the optical cable. Summary of the Invention
[0004] In view of the deficiencies in the prior art, the utility model provides a waterproof optical fiber splice box which is easy to install and construct and has good waterproof performance, thereby solving the problem that the optical fiber maintenance efficiency is affected by water leakage and moisture.
[0005] To achieve the above purpose, the present invention is implemented by the following technical solutions: a waterproof optical fiber splice box, comprising an upper box body (1), a lower box body (2), and a wire inlet groove, wherein the upper box body (1) and the lower box body (2) are provided with a wire inlet (51) at both ends, characterized in that: the wire inlet (51) is externally threadedly connected to a waterproof connector (7), the waterproof connector (7) comprises a connector body (71), a fastener (72) and a sealing ring (73), the fastener (72) is threadedly connected to the connector body (71), the connector body (71) and the fastener (72) are centrally provided with a through hole, the fastener (72) is internally provided with a sealing ring (73) near the through hole, the connector body (71) is provided with a sealing ring (73) at the external thread, the optical fiber passes through the connector body (71) and the fastener (72) through the center to enter the interior of the splice box, and when the fastener (72) is tightened, the internal sealing ring shrinks toward the optical fiber under the push of the connector body.
[0006] Furthermore, two limit blocks (11) are installed inside the upper box body (1), and a limit slot (21) is correspondingly provided inside the lower box body (2), and the two limit blocks (11) are plugged into the inner walls of the two limit slots (21).
[0007] Furthermore, corresponding through holes (8) are provided at the four corners of both ends of the upper box body (1) and the lower box body (2), and the through holes (8) at the four corners of the upper box body (1) are provided with nut bases (3), and the inner walls of the nut bases (3) are sleeved with screw rods (4). The four corners of the lower box body (2) are provided with through slots (10), and the through slots (10) are connected to the through holes (8); the four corners of the bottom of the lower box body (2) and the inner walls of the through holes (8) are provided with clamping slots (81), and the bottom of the screw rod (4) is sleeved with threaded sleeves (42), and the threaded sleeves are connected to the connecting rod (6). At the same time, a fixing block (9) is installed at the end of the connecting rod (6), and the fixing block (9) is engaged in the clamping slot (81).
[0008] Furthermore, a sealing gasket (22) is fixedly installed inside the lower box body (2), and a sealing groove (12) is provided at the bottom of the upper box body (1) corresponding to the sealing gasket (22).
[0009] Furthermore, the number of the nut base (3), the screw rod (4) and the through hole (8) is four, and the four screw rods (4) are all sleeved on the inner walls of the four nut bases (3) and located at the four corners of the upper box body (1). At the same time, the four through holes (8) are respectively opened at the four corners of the lower box body (2).
[0010] Furthermore, a sealing ring (73) is provided at the front end of the joint body (71) near the end of the thread.
[0011] Furthermore, the upper box body (1) and the lower box body (2) are both made of PC engineering plastic material.
[0012] Furthermore, the wire inlet groove (5) is filled with sealing gel.
[0013] Furthermore, the upper box body (1) or the lower box body (2) is provided with a fiber tray box (13), and the fiber tray box (13) is of an open-close design, with a buckle (14) provided on one side and a plurality of optical fiber holes (15) provided at both ends. Beneficial effects
[0014] The utility model provides a waterproof fiber optic splice box. Compared with the existing technology, the present invention adopts a three-layer sealing structure. The first layer is a waterproof joint, the second layer is a sealing gel, and the spliced optical fiber is placed in the fiber tray box, further improving the waterproof performance. The bottom of the screw is inserted into the inner wall of the through hole, and the two fixing blocks pass through the through slot. At this time, rotating the connecting rod drives the two fixing blocks perpendicular to the slot. At the same time, rotating the screw drives the connecting rod and the two fixing blocks respectively, and they rise along the nut base, so that the fixing blocks enter the inner wall of the slot, thereby fixing the upper box body and the lower box body. It is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the connecting rod connection of the utility model;
[0017] Figure 3 This is a schematic diagram of the utility model waterproof joint;
[0018] Figure 4 This is a schematic diagram of the through slot structure of the utility model.
[0019] In the figure: 1. Upper box body; 11. Limit block; 12. Sealing groove; 2. Lower box body; 21. Limit groove; 22. Sealing gasket; 3. Nut base; 4. Screw; 41. Handle; 42. Threaded sleeve; 5. Wire inlet; 51. Wire inlet; 6. Connecting rod; 7. Waterproof connector; 71. Connector body; 72. Fastener; 73. Sealing ring; 8. Through hole; 81. Card slot; 9. Fixing block; 10. Through slot; 13. Fiber tray box; 14. Buckle; 15. Fiber hole. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1-4 The utility model provides a technical solution: a waterproof optical fiber splice box, comprising an upper box body 1 and a lower box body 2, the four corners of the top of the upper box body 1 are equipped with nut bases 3, and the inner walls of the nut bases 3 are sleeved with screws 4, and the four corners of the lower box body 2 are provided with through grooves 10, which are connected to the through holes 8, and the four corners of the bottom of the lower box body 2 and the inner walls of the through holes 8 are provided with card slots 81, and the bottom of the screw 4 is sleeved with a connecting rod 6, and at the same time, fixing blocks 9 are installed on the left and right sides of the inner wall of the connecting rod 6, the screw 4 and the connecting rod 6 respectively pass through the through holes 8, and the two fixing blocks 9 pass through the through grooves 10 and the two fixing blocks 9 are located on the inner walls of the card slots 81.
[0022] The nut base 3 can be installed through the upper box body 1. Since the screw 4 is sleeved on the inner wall of the nut base 3, the connecting rod 6 is sleeved on the bottom of the screw 4. At the same time, fixed blocks 9 are installed on the left and right sides of the inner wall of the connecting rod 6. Therefore, the screw 4 is rotated, and under the action of the thread, the connecting rod 6 and the two fixing blocks 9 are driven to move downward along the nut base 3, so that the two fixing blocks 9 are disengaged from the inner wall of the slot 81. At this time, the user rotates the connecting rod 6 to drive the two fixing blocks 9 to enter the inside of the through groove 10, and then the upper box body 1 and the lower box body 2 can be released, thereby avoiding the screw connection between the upper box body 1 and the lower box body 2, resulting in the need to use tools to separate the upper box body 1 and the lower box body 2 during maintenance, affecting the efficiency of optical fiber maintenance.
[0023] See Figure 1 Two limit blocks 11 are installed at the bottom of the upper box body 1, and a limit groove 21 is provided on the top of the lower box body 2. At the same time, the two limit blocks 11 are inserted into the inner walls of the two limit grooves 21. A sealing groove 12 is opened at the bottom of the upper box body 1, and a sealing gasket 22 is fixedly installed on the top of the lower box body 2. The sealing groove 12 is located inside the sealing gasket 22.
[0024] Two limit blocks 11 are installed at the bottom of the upper box body 1, and a limit groove 21 is provided on the top of the lower box body 2. When the upper box body 1 and the lower box body 2 are connected, the two limit blocks 11 are inserted into the inner walls of the two sealing grooves 12, which can not only perform preliminary positioning of the upper box body 1 and the lower box body 2, but also keep the nut base 3 and the through hole 8 vertical. Moreover, since the sealing groove 12 is located inside the sealing gasket 22, the sealing gasket 22 can seal the sealing groove 12, thereby sealing the box body and preventing dust from entering the inside of the box body.
[0025] See Figure 1 、 Figure 4 There are four nut bases 3, screws 4 and through holes 8. The four screws 4 are all sleeved on the inner walls of the four nut bases 3 and are located at the four corners of the upper box body 1. At the same time, the four through holes 8 are respectively opened at the four corners of the lower box body 2. The through holes 8 are connected with the through grooves 10 and the card slots 81. The card slots 81 are located at the bottom of the lower box body 2 and the through holes 8.
[0026] There are four nut bases 3, screws 4 and through holes 8. Since the four screws 4 are all sleeved on the inner walls of the four nut bases 3 and located at the four corners of the upper box body 1, and the four through holes 8 are respectively opened at the four corners of the lower box body 2, the bottoms of the four screws 4 are respectively inserted into the inner walls of the four through holes 8, and the two fixing blocks 9 pass through the through grooves 10. At this time, the four connecting rods 6 are rotated in sequence to drive the two fixing blocks 9 to be perpendicular to the slots 81. At the same time, the four screws 4 are rotated in sequence to drive the connecting rods 6 and the two fixing blocks 9 respectively, and rise along the four nut bases 3, so that the fixing blocks 9 can enter the inner walls of the slots 81, and then the upper box body 1 can be connected to the lower box body 2.
[0027] See Figure 1 、 Figure 3 The inlet 51 is externally threaded with a waterproof connector 7. The waterproof connector 7 comprises a connector body 71, a fastener 72, and a sealing ring 73. The fastener 72 is threadedly connected to the connector body 71. The connector body 71 and fastener 72 have a central through-hole through which optical fibers can pass. A sealing ring 73 is located inside the fastener 72 near the through-hole. The connector body 71 is provided with a sealing ring 73 on its external threads. The optical fibers pass through the connector body 71 and fastener 72 through the center and enter the splice box. When the fastener 72 is tightened, the internal sealing ring contracts toward the optical fibers under the push of the connector body, providing a waterproof effect. The front end of the connector body 71 is provided with a sealing ring 73 near the end of the thread. When tightened to the inlet, the sealing ring at the front end of the connector body 71 is pressed and sealed against the box body. The optical fibers enter the cable entry trough 5 through the cable entry 51. The cable entry trough is filled with sealing gel to provide a sealing effect. The optical fibers at both ends enter the fiber tray box 13 inside the box. After each optical fiber is docked, it is placed in the optical fiber hole 15 and covered with a buckle 14 for sealing and fixing.
[0028] See Figure 1 、 Figure 2 A handle 41 is installed on the top of the screw rod 4, and a threaded sleeve 42 is provided at the bottom of the handle 41. The connecting rod 6 is sleeved on the inner wall of the threaded sleeve 42, and two fixing blocks 9 are fixedly installed on the bottom of the connecting rod 6. The upper box body 1 and the lower box body 2 are both made of PC engineering plastic material.
[0029] The connecting rod 6 can be installed through the threaded sleeve 42 opened at the bottom of the screw rod 4. Since a handle 41 is installed on the top of the screw rod 4, two fixed blocks 9 are fixedly installed at the bottom of the connecting rod 6, so that rotating the handle 41 can drive the screw rod 4, the connecting rod 6 and the two fixed blocks 9 to rise or fall along the nut base 3, and rotating the connecting rod 6 can adjust the direction of the two fixed blocks 9. At the same time, the upper box body 1 and the lower box body 2 are both made of PC engineering plastic material. Since the PC material has good stability, insulation, corrosion resistance and wear resistance, and also has extremely high impact resistance, it can not only reduce interference during signal transmission, but also improve communication quality.
[0030] During operation, the nut base 3 can be installed through the upper box body 1. Since the screw 4 is sleeved on the inner wall of the nut base 3, the connecting rod 6 is sleeved on the bottom of the screw 4. At the same time, fixed blocks 9 are installed on the left and right sides of the inner wall of the connecting rod 6. Therefore, the screw 4 is rotated. Under the action of the thread, the connecting rod 6 and the two fixed blocks 9 are driven to move downward along the nut base 3, so that the two fixed blocks 9 are disengaged from the inner wall of the slot 81. At this time, the user rotates the connecting rod 6 to drive the two fixed blocks 9 to enter the inside of the through groove 10, and then the upper box body 1 and the lower box body 2 can be released, thereby avoiding the screw connection between the upper box body 1 and the lower box body 2, resulting in the need to use tools to separate the upper box body 1 and the lower box body 2 during maintenance, affecting the efficiency of optical fiber maintenance.
[0031] The device rotates the screw rod 4, driving the connecting rod 6 and the two fixing blocks 9 to move downward along the nut base 3, so that the two fixing blocks 9 are separated from the inner wall of the slot 81. At this time, the connecting rod 6 is rotated to drive the two fixing blocks 9 to enter the interior of the through slot 10, thereby releasing the fixation of the upper box body 1 and the lower box body 2, and then the optical fiber can be repaired.
Claims
1. A waterproof optical fiber splice box, comprising an upper box body (1), a lower box body (2), and a wire inlet trough, wherein both ends of the upper box body (1) and the lower box body (2) are provided with wire inlets (51), characterized in that: The external thread of the line inlet (51) is connected to a waterproof connector (7), and the waterproof connector (7) includes a connector body (71), a fastener (72) and a sealing ring (73). The fastener (72) is threadedly connected to the connector body (71). A through hole is provided in the center of the connector body (71) and the fastener (72). A sealing ring (73) is provided inside the fastener (72) near the through hole. A sealing ring (73) is provided at the external thread of the connector body (71). The optical fiber passes through the connector body (71) and the fastener (72) through the center and enters the interior of the connector box. When the fastener (72) is tightened, the internal sealing ring shrinks toward the optical fiber under the push of the connector body.
2. The waterproof optical fiber splice closure according to claim 1, characterized in that: The four corners of the ends of the upper box body (1) and the lower box body (2) are provided with corresponding through holes (8), the through holes (8) at the four corners of the upper box body (1) are provided with nut bases (3), the inner walls of the nut bases (3) are sleeved with screw rods (4), the four corners of the lower box body (2) are provided with through slots (10), the through slots (10) are connected with the through holes (8); the four corners of the bottom of the lower box body (2) and the inner walls of the through holes (8) are provided with clamping slots (81), and the bottom of the screw rod (4) is sleeved with threaded sleeves (42), the threaded sleeves are connected to the connecting rod (6), and a fixing block (9) is installed at the end of the connecting rod (6), and the fixing block (9) is engaged in the clamping slot (81).
3. The waterproof optical fiber splice closure according to claim 2, characterized in that: Two limiting blocks (11) are installed inside the upper box body (1), and limiting grooves (21) are correspondingly provided inside the lower box body (2), and the two limiting blocks (11) are plugged into the inner walls of the two limiting grooves (21).
4. The waterproof optical fiber splice closure according to claim 3, characterized in that: A sealing gasket (22) is fixedly installed inside the lower box body (2), and a sealing groove (12) is provided at the bottom of the upper box body (1) corresponding to the sealing gasket (22).
5. The waterproof optical fiber splice closure according to claim 4, characterized in that: The number of the nut base (3), the screw rod (4) and the through hole (8) is four. The four screw rods (4) are all sleeved on the inner walls of the four nut bases (3) and located at the four corners of the upper box body (1). At the same time, the four through holes (8) are respectively opened at the four corners of the lower box body (2).
6. The waterproof optical fiber splice closure according to claim 5, characterized in that: A sealing ring (73) is provided at the front end of the joint body (71) near the end of the thread.
7. The waterproof optical fiber splice closure according to claim 6, characterized in that: The upper box body (1) and the lower box body (2) are both made of PC engineering plastic material.
8. The waterproof optical fiber splice closure according to claim 7, characterized in that: The wire inlet groove (5) is filled with sealing gel.
9. The waterproof optical fiber splice closure according to claim 8, characterized in that: The upper box body (1) or the lower box body (2) is provided with a fiber tray box (13). The fiber tray box (13) is of an open-close design, with a buckle (14) provided on one side and a plurality of optical fiber holes (15) provided at both ends.