Optical cable terminal box with light splitting function

By combining a miniature splitter with an optical cable terminal box, integrating the splitter and fiber optic splice protection, the problem of the traditional optical cable terminal box being large and complex is solved, achieving splitting function and cost reduction, and making it suitable for small optical path distribution networks.

CN224052468UActive Publication Date: 2026-03-27JIANGSU NANFANG COMM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional optical cable terminal boxes lack optical splitting capabilities, resulting in large and complex equipment that cannot meet the needs of small optical path distribution networks.

Method used

The miniature splitter and optical cable terminal box functions are combined, integrating the splitter area and the fiber optic splice protection area. It adopts a snap-fit ​​adapter and heat-shrinkable protective tube slot, eliminating the need for a fiber optic splice tray.

Benefits of technology

It realizes the splitting function of optical cable terminal box, reduces equipment size and cost, improves applicability and flexibility, and meets the needs of branch communication links.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an optical cable terminal box with a light splitting function, which comprises a box cover and a box body, the box body comprises a bottom plate, a first side vertical plate and a second side vertical plate, the first side vertical plate is provided with a cable inlet hole, the second side vertical plate is provided with an adapter mounting hole matched with an adapter, and the adapter is arranged in the adapter mounting hole in a clamping manner. A splitter area and an optical fiber fusion welding protection area are integrated on the bottom plate, a first limiting unit and a second limiting unit which are symmetrically arranged are arranged in the splitter area, each limiting unit comprises at least three limiting plates which are evenly distributed at intervals, and the optical fiber fusion welding protection area is arranged on the outer side of the splitter area. Comprising a plurality of groups of thermal shrinkage protection tube clamping grooves formed by groove plates at intervals. Through the above mode, the optical cable terminal box with the light splitting function combines the functions of a miniature splitter and the optical cable terminal box, increases the light splitting function of the optical cable terminal box, reduces the size and cost of equipment, meets the requirements of branch communication links, and is suitable for a small optical path distribution network.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical cable joint box, especially to a kind of optical cable terminal box with light splitting function. BACKGROUND

[0002] The main function of traditional optical cable terminal box is to realize the terminal connection and protection of optical cable, lacks light splitting function, and the function is relatively single, which cannot meet the demand of complex branch communication link.

[0003] In this way, in the scene needing to carry out optical signal branching, additional configuration such as branching device is also needed, that is, the branching device is separated from the terminal box, which leads to the increase of the overall volume of the device, increases the system complexity and cost.

[0004] In addition, due to the complex structure and large device volume, it is difficult to adapt to the strict requirement of small optical path distribution network on device space. UTILITY MODEL CONTENT

[0005] The utility model mainly solves the technical problem to provide a kind of optical cable terminal box with light splitting function, the function of miniature branching device and optical cable terminal box is merged, can increase the light splitting function of optical cable terminal box, makes the device volume and cost reduction, meets the demand condition of branch communication link, is suitable for small optical path distribution network use.

[0006] To solve the above technical problem, one technical scheme of the utility model is provided: provide a kind of optical cable terminal box with light splitting function, including: box cover and box body,

[0007] The box body includes bottom plate, first side vertical plate and second side vertical plate, the first side vertical plate is equipped with cable inlet hole, the second side vertical plate is equipped with adapter mounting hole matched with adapter, the adapter is arranged in adapter mounting hole by clamping,

[0008] The bottom plate is integrated with branching device area and optical fiber fusion protection area, the first limiting unit and the second limiting unit are symmetrically arranged in the branching device area, each limiting unit includes at least three limit plates,

[0009] The optical fiber fusion protection area is arranged outside the branching device area, and includes a plurality of heat-shrinkable protection tube clamping grooves formed by groove plates.

[0010] In a preferred embodiment of the utility model, the transverse section of the box cover is U-shaped, the longitudinal section of the box body is U-shaped, and the box cover is arranged on the box body and locked by bolts.

[0011] In a preferred embodiment of the utility model, the cable inlet hole is provided with at least two sealing rings.

[0012] In a preferred embodiment of the utility model, the adapter mounting hole is rectangular array distribution, and the number is at least four.

[0013] In a preferred embodiment of the utility model, the bottom plate is provided with an optical cable through hole near the cable inlet hole, and the optical cable through hole is provided with an insulating sheet and an optical cable fixing column.

[0014] In a preferred embodiment of the utility model, the first limiting unit and the second limiting unit form a splitter slot, the size of the splitter slot is matched with the splitter, and the splitter is inserted and mounted in the splitter slot.

[0015] In a preferred embodiment of the utility model, the depth of the heat shrinkage protection tube clamping groove is 8-12mm, and the interval between adjacent groove plates is 2.5-3.5mm.

[0016] In a preferred embodiment of the utility model, the groove plate is an elastic groove plate.

[0017] The beneficial effects of the utility model are that the integration of the micro splitter makes the terminal box have the light splitting function, reduces the volume and cost of the terminal box, can distribute one optical signal into multiple optical signals, meets the branch communication link demand, and improves the applicability and flexibility of the optical cable terminal box. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:

[0019] Fig. 1 It is a preferred embodiment of the structure schematic diagram of the optical cable terminal box with light splitting function of the utility model;

[0020] Fig. 2 It is a preferred embodiment of the structure schematic diagram of the internal optical cable terminal box with light splitting function of the utility model;

[0021] Fig. 3 It is an explosion structure schematic diagram of a preferred embodiment of the optical cable terminal box with light splitting function of the utility model;

[0022] The marks of various components in the drawings are as follows:

[0023] 1, box cover, 2, box body, 3, bottom plate, 4, the first side, 5, the second side, 6, cable hole, 7, adapter mounting hole, 8, adapter, 9, limit board, 10, splitter slot, 11, splitter, 12, groove plate, 13, heat shrinkable protective tube card slot, 14, optical cable hole, 15, insulating sheet, 16, optical cable fixing column. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figs. 1 to 3 The embodiments of the present application include:

[0027] A kind of optical cable terminal box with light splitting function, including box cover 1 and box body 2, the transverse section of the box cover 1 is U-shaped, the longitudinal section of the box body 2 is U-shaped, the box 1 cover is set on box body 2 and is locked by bolt.

[0028] The U-shaped opening of the box cover 1 is downward, effectively prevent water from entering the top, sealing rubber strip can be matched with the joint surface of the box cover 1 and the box body 2, realize high reliability sealing.

[0029] In one exemplary embodiment, the box body 2 includes a bottom plate 3, a first side stand 4 and a second side stand 5, the first side stand 4 is provided with a cable hole 6, responsible for optical cable introduction and fixation.

[0030] The second side stand 5 is provided with an adapter mounting hole 7 matched with the adapter, and the adapter 8 is arranged in the adapter mounting hole 7 in a clamping manner, which reduces the cost and realizes fast connection of optical fiber.

[0031] Preferably, the cable hole 6 is provided with at least two sealing rings.

[0032] Preferably, the adapter mounting hole 7 is arranged in a rectangular array, and the number is at least four.

[0033] On the basis of the above structure, the bottom plate 3 is integrated with a splitter area and an optical fiber fusion protection area:

[0034] The first limiting unit and the second limiting unit are symmetrically arranged in the splitter area, and can guarantee the stability of the splitter during installation; each limiting unit comprises at least three limiting plates 9 which are uniformly distributed and can provide sufficient supporting and limiting effects.

[0035] Further, a splitter slot 10 is formed between the first limiting unit and the second limiting unit, the size of the splitter slot 10 is matched with the splitter 11, and the splitter 11 is inserted and installed in the splitter slot 10, which not only facilitates the plugging operation of the splitter 11, but also significantly improves the shockproof and anti-falling performance.

[0036] During actual use, the splitter 11 can remain stable even in a relatively complex environment, and the falling problem caused by vibration or external force is effectively avoided, thereby guaranteeing the reliability and stability of the entire terminal box.

[0037] The utility model discloses a micro-splitter is added in the optical cable terminal box, and the functions of the splitter and the optical cable terminal box are combined, so that the equipment size and cost are reduced, and the branch communication link is met.

[0038] The optical fiber fusion protection area is arranged outside the splitter area and comprises a plurality of groups of heat shrink protection tube clamping grooves 13 which are formed by groove plates 12, and the heat shrink protection tube clamping grooves 13 are designed to omit the fiber fusion disc, thereby effectively reducing the cost.

[0039] Further, the depth of the heat shrink protection tube clamping groove 13 is 8-12mm, and the interval between adjacent groove plates is 2.5-3.5mm, and the heat shrink protection tube can be stably placed in the clamping groove in this size range, and the operation personnel can conveniently install and fix the protection tube after optical fiber fusion.

[0040] The groove plate 12 is an elastic groove plate, the elastic groove plate makes the heat shrink protection tube more convenient to take and place, and the elastic groove plate can exert a certain pressure on the heat shrink protection tube, thereby further improving the fixing effect, preventing the heat shrink protection tube from being displaced due to external force or vibration during use, and ensuring the stability and reliability of the optical fiber fusion point.

[0041] The bottom plate 3 is provided with an optical cable perforation 14 near the cable inlet hole 6, the optical cable perforation 14 is provided with an insulating sheet 15 and an optical cable fixing column 16, and the tensile strength and stability of the optical cable are enhanced.

[0042] The working principle of the optical cable terminal box with a splitting function is as follows:

[0043] The shunt 11 is clamped in the shunt slot 10 formed by the first limiting unit and the second limiting unit, the adapter 8 is clamped in the adapter mounting hole 7,

[0044] The backbone cable is introduced into the terminal box from the outside through the cable inlet hole 6, firstly enters the heat shrink protection tube clamping groove 13, the incoming end of the backbone cable is fused with the incoming end of the shunt under the protection of the heat shrink protection tube, and transmission of optical signals from the backbone cable to the shunt 11 is realized.

[0045] The outgoing end of the shunt 11 is also protected by the heat shrink protection tube clamping groove 13, the branched optical fibers sequentially pass through the adapter 8, and further connection with an external optical fiber communication system is realized.

[0046] The optical cable terminal box with the splitting function has the following beneficial effects:

[0047] The functions of the micro shunt and the optical cable terminal box are combined, the splitting function of the optical cable terminal box is increased, the size and cost of the equipment are reduced,

[0048] The branched communication link demand condition is met, the optical cable terminal box has the advantages of simple structure, small size and the like, and is suitable for use in a small optical path distribution network.

[0049] The clamping type adapter is adopted, the heat shrink protection tube clamping groove is additionally arranged, the fiber fusion disc is saved, and the cost is reduced.

[0050] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations made by using the content of the utility model specification, or direct or indirect application in other related technical fields are also included in the patent protection range of the utility model.

Claims

1. An optical cable terminal box with beam splitting function, characterized in that, Include: Box cover and box body, The box body includes a bottom plate, a first side plate and a second side plate, the first side plate is provided with a cable inlet hole, the second side plate is provided with an adapter mounting hole matched with the adapter, the adapter is arranged in the adapter mounting hole in a clamping manner, The bottom plate is integrated with a splitter area and an optical fiber fusion protection area, the splitter area is provided with a first limiting unit and a second limiting unit arranged symmetrically, each limiting unit includes at least three limiting plates spaced and distributed, The optical fiber fusion protection area is arranged outside the splitter area and includes a plurality of groups of heat shrink protection tube clamping grooves formed by groove plates.

2. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The transverse section of the box cover is U-shaped, the longitudinal section of the box body is U-shaped, the box cover is arranged on the box body and locked by bolts.

3. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The cable inlet hole is provided with at least two sealing rings.

4. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The adapter mounting hole is arranged in a rectangular array, and the number is at least four.

5. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The bottom plate is provided with an optical cable perforation near the cable inlet hole, and the optical cable perforation is provided with an insulating sheet and an optical cable fixing column.

6. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The first limiting unit and the second limiting unit form a splitter slot, the size of the splitter slot is matched with the splitter, and the splitter is inserted and installed in the splitter slot.

7. The optical cable termination box with a light splitting function according to claim 1, characterized in that, The depth of the heat shrink protection tube clamping groove is 8-12mm, and the interval between adjacent groove plates is 2.5-3.5mm.

8. The optical cable termination box with a light splitting function according to claim 7, characterized in that, The groove plate is a flexible groove plate.