A quick connect fiber splice closure

Abstract

The utility model discloses a kind of optical fiber splicing boxes of quick connection, it is related to communication equipment technical field.The splicing box includes lower shell (10) and upper cover (20), lower shell (10) is separated into two chambers by partition (2) inside, each chamber is equipped with fusion fiber tray (5).Partition (2) is equipped with wire hole (21) for the upper layer optical fiber into lower layer.Lower chamber is equipped with multi-channel optical splitter, its output end is connected with the optical fiber quick plug connector (7) of setting in the side wall of lower shell (10).The utility model realizes functional division by upper and lower chamber, so that internal layout is clear;Utilize optical fiber quick plug connector (7) to realize quick plug, improve installation efficiency;And be equipped with multiple fixing structures such as optical cable fixing member (3), reinforcing core fixing member (4) and optical fiber fixing member (6), combined with sealed box body and double lock, significantly improve the operation convenience of splicing box, protection safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment technology, specifically to a fast-connection fiber optic splice box. Background Technology

[0002] Fiber optic splice boxes are key infrastructure in fiber optic communication networks and are widely used in fiber-to-the-home (FTTH), local area networks (LAN), and underground monitoring and communication systems in mines. Their main functions are to splice, store, distribute, and protect optical cables to ensure the stability and reliability of fiber optic transmission.

[0003] However, traditional fiber optic splice boxes often use fusion splicing or ordinary connectors for fiber optic connections, which is cumbersome, time-consuming, and requires high levels of expertise and environmental conditions. Especially in harsh environments such as underground mines, where space is limited and rapid deployment and maintenance are crucial, the efficiency of traditional splice boxes is insufficient to meet practical needs.

[0004] Therefore, there is an urgent need for a fiber optic splice box that can achieve rapid fiber optic connection, is easy to operate, and can adapt to complex environments. Utility Model Content

[0005] In view of the problems and shortcomings of the existing technology, this utility model provides a fiber optic splice box for quick connection.

[0006] The technical solution of this utility model is as follows: A quick-connect fiber optic splice box includes a housing comprising a lower shell and an openable upper cover. The lower shell houses a fusion splice tray, and its side walls have cable entry holes for optical cables. Its innovation lies in dividing the lower shell into upper and lower chambers by a partition, achieving functional zoning. Each chamber contains a fusion splice tray for managing the optical fibers of the upper and lower layers respectively. The partition has cable passage holes for the orderly passage of optical fibers from the upper chamber into the lower chamber, ensuring the neatness of the fiber optic cabling.

[0007] Furthermore, a multi-channel splitter is installed in the lower cavity to split the optical fiber signal from the upper cavity into multiple paths, thereby achieving signal distribution. The optical cable port is located on the lower shell sidewall above the partition, facilitating the introduction of the trunk optical cable. A fiber optic quick-connect connector is installed on the lower shell sidewall below the partition. The input end of the quick-connect connector connects to the optical fiber after splitting by the multi-channel splitter, and the output end is used for quick connection to external optical fibers, greatly improving construction efficiency.

[0008] As a preferred embodiment of this utility model, multiple fiber optic quick-connect connectors are spaced apart along the side wall of the lower shell, and each fiber optic quick-connect connector can connect two optical fibers, thereby multiplying the output port density. Multiple optical cable holes are also spaced apart along the side wall of the lower shell to meet the needs of multiple optical cable introductions.

[0009] To optimize the layout, both the fiber optic quick-connect connectors and the optical cable holes are located on the wide sidewalls at both ends of the lower housing. Specifically, three fiber optic quick-connect connectors and three optical cable holes are arranged in an array along the width direction at each end of the lower housing, resulting in a uniform distribution of interfaces and facilitating operation.

[0010] In the cable routing structure, two cable guide holes are provided and symmetrically arranged along the center of symmetry of the fusion splice tray, which helps to maintain the balance and stability of the fiber optic cabling. Preferably, the cable guide holes are elongated holes, providing more flexible space for the fiber to pass through and avoiding excessive bending.

[0011] To securely mount the core components, a splitter mounting base is provided at the bottom of the lower housing for reliably fixing the multi-channel splitter with screws. For safety, a cable fastener is provided at the entrance of the cable hole on the partition to tighten the cable and effectively prevent internal fiber breakage due to external pulling. Simultaneously, several fiber fasteners are spaced along the outer periphery of the fiber fusion splice tray on the partition for binding and securing the coiled fibers; the partition also includes a reinforcing core fastener for securing the reinforcing core of the cable, achieving comprehensive cable anchoring.

[0012] Finally, the lower shell is pivotally hinged to the upper cover on one side, and a locking device is provided on the other side. An elastic seal is also provided at the mating surface between the lower shell and the upper cover to ensure the box's sealing and protective performance. The locking device includes a buckle and a key lock, forming a double-lock structure that ensures both ease of opening and enhanced anti-theft security.

[0013] The beneficial effects of this utility model are: By integrating fiber optic quick-connect connectors into the side wall of the lower shell, the traditional cumbersome fusion splicing output is replaced with a quick plug-and-play connection, which significantly simplifies the operation process and reduces the professional skills required for construction personnel. It is particularly suitable for occasions such as mines where rapid deployment and emergency maintenance are required, and greatly improves construction efficiency and communication recovery speed.

[0014] The internal structure of the enclosure is divided into two independent chambers, upper and lower, by a partition, achieving functional separation and avoiding mutual interference between internal cables. A multi-layered fixing and protection system, consisting of fiber optic cable fixing components, reinforcing core fixing components, and multiple fiber optic fixing components, effectively resists the impact of external forces such as severe vibrations underground, prevents fiber optic cable movement and loosening or slight bending damage to internal fiber optic connections, and ensures long-term stability of the connection.

[0015] The fiber optic cable ports and quick-connect fiber optic connectors are arrayed on the wide sidewalls at both ends of the lower housing, providing abundant and centralized interfaces for easy cabling in confined spaces. Combined with a modular splitter installation design, this junction box is compact and fully functional, meeting the needs of both conventional communication scenarios and being particularly suitable for special industrial environments such as mines. Attached Figure Description

[0016] Figure 1 An internal perspective view of the lower shell of the connector box in an embodiment; Figure 2 for Figure 1 A stereoscopic view from another perspective; Figure 3 A perspective view of the connector box with a top cover, as shown in the embodiment; Figure 4 for Figure 1 A 3D view showing the partition removed in the middle; The components represented by the reference numerals in the diagram are: 10. Lower shell; 20. Upper cover; 1. Optical cable hole; 2. Partition; 3. Optical cable fastener; 4. Reinforcing core fastener; 5. Fiber fusion splice tray; 6. Optical fiber fastener; 7. Fiber optic quick connector; 11. Splitter mounting base; 21. Cable passage hole. Detailed Implementation

[0017] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0018] Example 1 This utility model provides a fiber optic splice box for rapid connection, the core of which lies in achieving functional partitioning, rapid connection, and reliable protection through optimized internal structural design. Please refer to [link / reference]. Figures 1 to 4 The fiber optic splice box mainly consists of a box body and components. Figure 3 The box body includes a basic lower shell 10 and an openable upper cover 20. The lower shell 10 and the upper cover 20 are hinged on one side via a pivot, allowing the upper cover 20 to be easily opened and closed; the other side is equipped with a locking device, preferably consisting of a snap-fit ​​and a key lock, forming a double-lock structure that ensures both convenient daily operation and necessary anti-theft functionality. To ensure the reliability of the junction box in harsh environments such as outdoors, an elastic seal (not shown in the figure) is embedded at the joint surface between the lower shell 10 and the upper cover 20, thus forming a sealed protective space.

[0019] See Figure 1 and Figure 4The internal space of the lower shell 10 is divided into two independent chambers by a horizontally positioned partition 2. This partitioned design is a key feature of this scheme, physically separating the optical cable access, backbone fiber splicing, and optical signal distribution and output functions. Each chamber contains a fusion splicing tray 5 for storing and splicing optical fibers. See also... Figure 1 and Figure 2 The partition 2 is connected to a connecting post integrally cast on the side wall of the lower shell by screws, and has wire-passing holes 21. In this embodiment, the wire-passing holes 21 are preferably set as two elongated holes, symmetrically arranged along the symmetrical center line of the length of the fiber fusion tray 5. The shape of the elongated holes provides more spacious and flexible space for the transition of optical fibers from the upper chamber to the lower chamber, effectively avoiding sharp bends in the optical fibers and protecting their transmission performance.

[0020] The fiber optic cable is introduced through a fiber optic cable hole 1 located on the side wall of the lower shell 10 above the partition 2. Multiple fiber optic cable holes 1 are provided (see...). Figure 1 This embodiment has six optical cables, symmetrically distributed on both sides of the lower shell, spaced apart to accommodate the simultaneous introduction of multiple optical cables. Inside the entrance of the optical cable hole 1, on the partition 2, is an optical cable fixing member 3. After the optical cable is inserted, the fixing member 3 securely clamps the outer sheath of the cable, effectively resisting external pulling forces and preventing force from being transmitted to the fragile internal fiber splice points. Specifically, the optical cable fixing member consists of two opposing arc-shaped pressure plates. In use, the upper pressure plate is screwed onto the lower pressure plate, and the middle arc hole engages with the optical cable to compress and fix it. Furthermore, a reinforcing core fixing member 4 is also provided on the partition 2, specifically for fixing the reinforcing core (such as Kevlar wire or metal core) in the optical cable. Working in conjunction with the optical cable fixing member 3, it achieves comprehensive and reliable fixing of the optical cable.

[0021] In the lower chamber, the core functional components are the fusion splice tray and the multiplexer (not shown in the figure). The fusion splice tray serves the same function as the upper fusion splice tray. To ensure a secure installation of the splitter, a splitter mounting base 11 is provided at the bottom of the lower housing 10, allowing the splitter to be firmly mounted on the mounting base 11 with screws. The splitter's function is to distribute the main fiber signal introduced from the upper chamber via the cable pass 21 into multiple output signals (e.g., 2, 4, 8, etc.).

[0022] The final signal output is achieved through fiber optic quick-connect connectors 7 located on the side wall of the lower shell 10 below the partition 2. Multiple fiber optic quick-connect connectors 7 are spaced apart along the side wall; preferably, each connector can connect two optical fibers simultaneously, thus providing higher port density within a limited space. The input ends of these fiber optic quick-connect connectors 7 are fused to the output end of the splitter via pigtails, and the fusion splice points are stored and protected by the fusion tray 5 in the lower chamber; their output ends are exposed and can be directly and quickly plugged into external user optical cables with corresponding connectors. For aesthetic appeal and ease of operation, the fiber optic quick-connect connectors 7 and the optical cable holes 1 are concentrated on the wide side walls at both ends of the lower shell 10. In a preferred embodiment, each end of the lower shell 10 has three optical cable holes 1 and three fiber optic quick-connect connectors 7 arranged in an array along its width, resulting in a neat interface distribution and clear cable management.

[0023] To further standardize the routing of optical fibers within the box, several optical fiber fixing pieces 6 are arranged at intervals along the outer periphery of the fusion splice tray 5 on the partition 2. These fixing pieces can be used to neatly bind and fix redundant optical fiber pigtails with cable ties, preventing them from becoming scattered and tangled. This not only ensures the bending radius of the optical fiber but also facilitates fault location and maintenance.

[0024] In practical applications, the construction personnel first open the top cover 20. The external backbone optical cable is inserted into the upper chamber through the optical cable hole 1 on one side (e.g., the left side), and firmly secured using the optical cable fixing piece 3 and the reinforcing core fixing piece 4. The optical cable is stripped, and one or more backbone fibers are spliced ​​with pre-prepared jumpers (or pigtails) on the upper splice tray 5 and coiled. The spliced ​​jumpers are then orderly passed through the cable passage holes 21 on the partition 2 and enter the lower chamber. Subsequently, these jumpers are spliced ​​to the input ends of the multi-channel splitter mounted on the splitter mounting base 11 at the bottom of the lower shell, and the splice points are coiled and fixed on the lower splice tray 5. After the splitter branches the signal, each output end is spliced ​​to the input ends of the respective fiber optic quick-connect connectors 7 mounted on the side wall via pigtails. Finally, the optical cable plugs of the equipment to be connected are directly inserted into the corresponding fiber optic quick-connect connectors 7 to complete the entire link connection. If there are excess optical fibers that need to pass through the splice box, they can be passed out through the optical cable hole 1 on the right side. Throughout the process, all fiber optic splicing, coiling, and fixing are handled by a dedicated structure with a clear layout and smooth operation, achieving fast, safe, and reliable fiber optic splicing and distribution.

[0025] In addition, the fiber optic quick-connect connectors are used for rapid connection via a screw-on mechanism. The outer wall of the junction box is equipped with heat dissipation fins to improve its heat dissipation performance. The junction box is mounted on two sides with mounting ears and mounting holes for securing it to a wall or other supporting structure using bolts.

[0026] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-connect fiber optic splice box, comprising a box body, the box body comprising a lower shell (10) and an openable upper cover (20), the lower shell (10) having a fiber splicing tray (5) inside and a fiber optic cable hole (1) for the fiber optic cable to pass through on the side wall. Its features are, The lower shell (10) is divided into two chambers, upper and lower, by a partition (2). Each chamber is provided with a fiber fusion tray (5). The partition (2) is provided with a wire hole (21) for the optical fiber in the upper chamber to pass through and enter the lower chamber. The lower cavity is equipped with a multi-channel splitter for splitting the optical fiber from the upper cavity into multiple channels; The optical cable hole (1) is located on the side wall of the lower shell (10) above the partition (2). The side wall of the lower shell (10) below the partition (2) is provided with a fiber optic quick connector (7). The input end of the fiber optic quick connector (7) is connected to the optical fiber after the multi-channel splitter splits the light, and the output end is used to quickly connect to the external optical fiber.

2. The fiber optic splice box according to claim 1, characterized in that, Multiple fiber optic quick-connectors (7) are provided at intervals along the side wall of the lower shell (10), and each fiber optic quick-connector (7) can connect two optical fibers.

3. The fiber optic splice box according to claim 1, characterized in that, The optical cable holes (1) are provided at intervals along the side wall of the lower shell (10).

4. The fiber optic splice box according to claim 1, characterized in that, The fiber optic quick-connect connector (7) and the optical cable hole (1) are both located on the wide sidewalls at both ends of the lower shell (10).

5. The fiber optic splice box according to claim 1, characterized in that, Two wire guide holes (21) are provided, which are symmetrically arranged along the symmetry center of the length of the fiber melting tray (5).

6. The fiber optic splice box according to claim 5, characterized in that, The wire hole (21) is an elongated hole.

7. The fiber optic splice box according to claim 1, characterized in that, The bottom of the lower shell (10) is provided with a splitter mounting base (11) for fixing the multi-channel splitter with screws.

8. The fiber optic splice box according to any one of claims 1-7, characterized in that, The partition (2) is provided with an optical cable fixing component (3) at the entrance of the optical cable hole (1).

9. The fiber optic splice box according to claim 8, characterized in that, The partition (2) is provided with a number of optical fiber fixing parts (6) spaced apart along the outer periphery of the fiber fusion tray (5); the partition (2) is also provided with reinforcing core fixing parts (4).

10. The fiber optic splice box according to claim 9, characterized in that, The lower shell (10) is pivotally hinged to one side of the upper cover (20), and a locking device is provided on the other side. The mating surface between the lower shell (10) and the upper cover (20) is provided with an elastic seal.

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