Mini fiber distribution box supporting quick connection and rubber-insulated wire head cable outgoing
By designing a mini fiber distribution box that supports quick connection and drop cable extension, and employing symmetrical connection positions and through-hole groove structure, the problems of large size and slow drop cable connection of existing fiber distribution boxes are solved, achieving the effect of fast connection and low space occupation.
Patent Information
- Application Number
- CN202520182835.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing fiber distribution boxes increase in size when installing adapters and pigtail splicing, which cannot meet the needs of rapid connection of drop optical cables and takes up a lot of space.
Design a mini fiber distribution box, including an outer shell, adapter connectors and multiple wire loops, supporting quick connection and drop cable extension. Through symmetrically arranged connection positions and through-hole and groove structures, it enables direct entry and connection of drop optical cables, reducing the volume footprint.
It enables rapid connection of drop optical cables, reduces pigtail breakage, reduces the size of the fiber distribution box, and improves functionality and ease of operation.
Smart Images

Figure CN223796735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fiber distribution box, specifically a mini fiber distribution box that supports quick connection and drop cable extension. Background Technology
[0002] In an FTTx communication network system, the fiber distribution box serves as the terminal for connecting feeder cables and drop cables. This box allows for the fixing, splitting, splicing, and patching of optical fibers, while providing robust protection and management for the construction of the FTTx network.
[0003] Currently, conventional fiber distribution boxes require the installation of adapters inside, with pigtails coiled inside and fused with the incoming cable. The size usually gradually increases, or a flip-up plate is added to divide the box into two layers to increase the height and gain space. These methods generally do not meet the requirements for using quick connectors after the drop fiber optic cable enters the box. Utility Model Content
[0004] The purpose of this invention is to provide a mini fiber distribution box that supports quick connection and drop cable extension, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A mini fiber distribution box that supports quick-connect and drop cable extension includes:
[0007] The outer casing has an inlet and an outlet for inserting and leading out the fiber optic cable;
[0008] An adapter connector is installed inside the housing, and the adapter connector has two symmetrically arranged sets of connection positions, with the two sets of connection positions facing the cable inlet and cable outlet respectively.
[0009] Multiple wire loops are installed inside the housing. The pigtails of the connectors are coiled around the wire loops and then welded onto the welding socket located on the side of the connector.
[0010] The mini fiber distribution box that supports quick-connect and drop cable extension as described above: four wire loops are provided, and the four wire loops are distributed at the four corners of the adapter connector.
[0011] As described above, the mini fiber distribution box supports quick-connect and drop cable extension: the adapter connector includes an adapter panel installed inside the housing and multiple adapters configured on the adapter panel, the adapters being equipped with fiber optic connectors that form the connection positions.
[0012] As described above, the mini fiber distribution box that supports quick connection and drop cable extension has the following features: both the cable inlet and outlet are equipped with detachable plugs, and the plugs are perforated with multiple sets of through holes distributed along the width of the outer casing, with each through hole corresponding to a fiber optic connector.
[0013] The mini fiber distribution box that supports quick connection and drop cable extension as described above: the plug is also configured with multiple grooves distributed along the width of the outer casing, and one groove connects to a set of through holes.
[0014] As described above, the mini fiber distribution box supports quick-connect and drop cable extension: the groove extends directly to the bottom of the plug.
[0015] As described above, the mini fiber distribution box that supports quick connection and drop cable extension has the following features: symmetrically installed drop cable holders within the outer casing, each drop cable holder having multiple locking positions facing the fiber optic connector.
[0016] The mini fiber distribution box that supports quick-connect and drop cable extension as described above: the outer shell includes a first shell and a second shell that are hinged to each other, and the first shell and the second shell are fixed by at least one snap-fit after being closed.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] The pigtail of the connector is wound around the wire loop and then fed into the splice holder located on the side of the connector for splicing. The pigtail is wound around the wire loop, which can effectively increase the radius of curvature and make the pigtail less prone to breakage. At the same time, it reduces the volume of the fiber distribution box to a certain extent.
[0019] The adapter connector has two symmetrically arranged sets of connection positions, which are directly opposite the cable inlet and cable outlet, respectively. This ensures that after the drop cable enters the housing, it is directly aligned with the adapter connector without bending and without affecting the radius of curvature.
[0020] By using through holes and grooves to accommodate the installation of compatible connectors, the fiber distribution box can be configured to allow the drop fiber cable to enter the box directly, or to allow the drop fiber cable to be fitted with a connector head before being inserted, effectively increasing the functionality of the fiber distribution box. Attached Figure Description
[0021] Figure 1 A schematic diagram of the structure of a mini fiber distribution box to support quick-connect and drop cable extension.
[0022] Figure 2 Side view of a mini fiber distribution box that supports quick-connect and drop cable extension.
[0023] Figure 3A bottom view of a mini fiber distribution box that supports quick-connect and drop cable extension.
[0024] Figure 4 A schematic diagram of the internal structure of a mini fiber distribution box to support quick connections and drop cable extensions.
[0025] Figure 5 A front view of the plug in a mini fiber distribution box that supports quick-connect and drop cable extension.
[0026] Figure 6 Side view of the plug in the mini fiber distribution box to support quick-connect and drop cable extension.
[0027] Figure 7 A bottom view of the plug in a mini fiber distribution box that supports quick-connect and drop cable extension.
[0028] In the diagram: 1-First housing, 2-Second housing, 201-Plug, 2011-Through hole, 2012-Groove, 3-Snap-on, 4-Plumb line holder, 5-Adapter connector, 501-Fiber optic connector, 502-Adapter panel, 503-Adapter, 6-Wire loop, 7-Fusion splice holder. Detailed Implementation
[0029] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0031] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0032] The present invention aims to provide a fiber distribution box to reduce the volume occupied by existing fiber distribution boxes, making the fiber distribution box as small as possible, while ensuring that the fiber melting and coiling functions can be completed inside the box. The specific implementation method is as follows:
[0033] Please see Figures 1-7 In this embodiment of the invention, a mini fiber distribution box supporting quick-connect and drop cable extension includes:
[0034] The outer casing has an inlet and an outlet for inserting and leading out the fiber optic cable;
[0035] The adapter connector 5 is installed inside the housing, and the adapter connector has two sets of symmetrically arranged connection positions. The two sets of connection positions are respectively facing the cable inlet and cable outlet, so that after the drop cable enters the housing, it is directly facing the adapter connector 5 without bending and without affecting the radius of curvature.
[0036] Multiple wire loops 6 are installed inside the housing. The pigtails of the connecting positions of the adapter connector 5 are coiled around the wire loops 6 and then fed into the fusion splice holder 7 located on the side of the adapter connector 5 for fusion splicing. The pigtails are coiled around the wire loops 6, which can effectively increase the radius of curvature and make the pigtails less prone to breakage. At the same time, it reduces the volume occupied by the fiber distribution box to a certain extent.
[0037] Further, please refer to Figure 4 The four loops 6 are distributed at the four corners of the adapter connector 5, so that the pigtail of the adapter 5 can freely select the closer loop according to the connection position, reducing the phenomenon of pigtail breakage caused by the pigtail needing a longer contact length with the farther loop 6.
[0038] It should be noted that the loop 6 is arranged in a vortex structure, which forms a gap on the loop 6 for the pigtail to enter the inner side of the loop 6. Therefore, when winding the pigtail, it is not necessary to repeatedly pass the end of the pigtail through the loop 6. The pigtail can simply enter through the gap, which improves the convenience of pigtail winding.
[0039] The adapter connector 5 includes an adapter panel 502 installed in the housing and a plurality of adapters 503 disposed on the adapter panel 502. Fiber optic connectors 501 are installed on the adapters 503, and the fiber optic connectors 501 form the connection positions. The specific installation structures of the fiber optic connectors 501, adapter panel 502 and adapters 503 are conventional technical means, therefore, this embodiment will not elaborate on them.
[0040] Further, please refer to Figure 3 , Figures 5-7 Both the cable inlet and outlet are detachably equipped with plugs 201. The plugs 201 have multiple sets of through holes 2011 distributed along the width of the outer casing. Each through hole 2011 corresponds to a fiber optic connector 501. The through holes 2011 allow the drop cable to be directly inserted into the outer casing, and the drop cable can be directly and straight-lined to the fiber optic connector 501 for connection without completely bending the drop cable. This does not affect the curvature radius of the drop cable, making installation convenient and reducing the space occupied by the bending of the drop cable to a certain extent, thus effectively reducing the volume of the enclosure.
[0041] Preferably, the plug 201 is also provided with multiple grooves 2012 distributed along the width direction of the outer shell. Each groove 2012 connects to a set of through holes 2011. The grooves 2012 extend directly to the bottom of the plug 201. Since the drop cable needs to be cut open after the connector head has been added, the grooves 2012 can be used to cut along the grooves during operation to meet the cutting requirements.
[0042] This embodiment, through the through hole 2011 and groove 2012 and the matching connector 5, can meet the requirement that the drop optical cable can be directly inserted into the box, or the drop optical cable can be inserted after the connector head is attached, effectively increasing the functionality of the fiber distribution box.
[0043] The housing is also symmetrically equipped with drop cable holders 4, which have multiple locking positions. The locking positions are directly opposite the fiber optic connector 501. By using the drop cable holders 4, the drop cable can be locked into the drop cable holders 4 when it passes through the cable outlet, thus fixing the drop cable firmly and preventing it from being pulled out.
[0044] The outer shell includes a first shell 1 and a second shell 2 that are hinged to each other. After the first shell 1 and the second shell 2 are closed, they are fixed by at least one snap fastener 3, which facilitates the opening and closing of the first shell 1 and the second shell 2 and their fixation after closing.
[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A mini fiber distribution box supporting quick-connect and drop cable extension, characterized in that, include: The outer casing has an inlet and an outlet for inserting and leading out the fiber optic cable; The adapter connector (5) is installed in the housing and has two sets of symmetrically arranged connection positions, which are respectively facing the cable inlet and the cable outlet. Multiple wire loops (6) are installed inside the housing. The pigtails of the connecting positions of the adapter connector (5) are coiled around the wire loops (6) and then welded on the welding socket (7) located on the side of the adapter connector (5).
2. The mini fiber distribution box supporting quick connection and drop cable extension as described in claim 1, characterized in that, Four wire loops (6) are provided, and the four wire loops (6) are distributed at the four corners of the adapter connector (5).
3. A mini fiber distribution box supporting quick-connect and drop cable extension as described in claim 1, characterized in that, The adapter connector (5) includes an adapter panel (502) installed in the housing and a plurality of adapters (503) disposed on the adapter panel (502). Fiber optic connectors (501) are installed on the adapters (503) and form the connection position.
4. A mini fiber distribution box supporting quick connection and drop cable extension as described in claim 3, characterized in that, Both the cable inlet and the cable outlet are detachably equipped with plugs (201). The plugs (201) are provided with multiple sets of through holes (2011) distributed along the width of the outer shell. Each through hole (2011) corresponds to one of the optical fiber connectors (501).
5. A mini fiber distribution box supporting quick connection and drop cable extension as described in claim 4, characterized in that, The plug (201) is also provided with multiple grooves (2012) distributed along the width direction of the outer shell, and one groove (2012) connects to a group of through holes (2011).
6. A mini fiber distribution box supporting quick connection and drop cable extension as described in claim 5, characterized in that, The groove (2012) extends directly to the bottom of the plug (201).
7. A mini fiber distribution box supporting quick connection and drop cable extension as described in claim 3, characterized in that, The housing is also symmetrically equipped with a drop cable holder (4), and the drop cable holder (4) has a plurality of snap-fit positions, which are directly opposite the fiber optic connector (501).
8. A mini fiber distribution box supporting quick connection and drop cable extension as described in claim 1, characterized in that, The outer shell includes a first shell (1) and a second shell (2) that are hinged to each other. The first shell (1) and the second shell (2) are locked together by at least one snap fastener (3).