Universal fiber optic splice closure

Abstract

A universal fiber optic splice closure, comprising a metal adapter bracket (2-1), a permanent fiber optic storage tray (2-3), and a plurality of expanding fiber optic splice trays (2-7). A plurality of round holes (2-4-3) arranged in linear arrays are provided on two sides of an expanding fiber optic splice tray fixing bracket (2-4). The expanding fiber optic splice trays (2-7) are connected to the round holes (2-4-3) by means of splice tray connecting hinges (2-6), and can rotate around the splice tray connecting hinges (2-6). A through hole is provided in the middle of the expanding fiber optic splice tray fixing bracket (2-4), and protruding structures (2-4-1) and slotted notch structures (2-4-2) are arranged on the inner wall of the through hole, so that a quick-detach supporting member (2-8) can be inserted to support and replace an upper expanding fiber optic splice tray (2-7).

Description

A general-purpose fiber optic connector box Technical Field

[0001] This invention relates to the field of optical fiber technology, and in particular to a universal optical fiber connector box. Background Technology

[0002] General-purpose fiber optic splice closures are indispensable key splicing and protection devices in fiber optic communication networks, widely used in various laying methods of optical cables, including aerial, duct, and direct burial. They primarily provide continuous protection in terms of optical continuity, sealing, and mechanical strength, and are core equipment for realizing straight-through and branch connections of optical cables. Traditional general-purpose fiber optic splice closures are typically made of synthetic plastics, possessing excellent properties such as high strength, corrosion resistance, and water resistance, meeting the requirements of various application scenarios such as communications, network systems, and cable television.

[0003] During long-distance optical fiber transmission, a large number of fiber splitters are required at the transmission front end. Therefore, a universal fiber optic junction box is needed that can both meet the requirements of splicing and storing a large number of optical fibers and output more optical fibers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a universal fiber optic splice box that addresses the deficiencies in the prior art. It is used at the front end of optical cable transmission and can accommodate larger fiber optic splice box assemblies and more diverse assembly forms, so that the assemblies used in the fiber optic splice box can better meet customer requirements.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention provides a universal fiber optic junction box, including a box body, an end cap assembly, and a clamp assembly. The box body contains an internal component connected to the end cap assembly. The internal component includes an adapter metal bracket, on which an expansion fiber optic disc fixing bracket and a permanent fiber storage disc are connected. Multiple first fiber optic discs are disposed above the permanent fiber storage disc. Multiple circular holes arranged in a linear array are provided on both sides of the expansion fiber optic disc fixing bracket. The first fiber optic discs are connected to the circular holes via disc link hinges, allowing them to rotate around the disc link hinges. A through hole extending along the central axis of the box body is provided in the middle of the expansion fiber optic disc fixing bracket. Raised structures and grooved notches are arranged in a mirror array on the two inner sidewalls of the through hole, with the raised structures and notches on the two inner sidewalls corresponding one-to-one. A quick-release support can be inserted into the through hole, and the first fiber optic discs located above the quick-release support are supported and rotated at a certain angle by the quick-release support.

[0006] This invention also discloses a universal fiber optic junction box, including a box body, an end cap assembly, and a clamp assembly. The box body contains an internal component connected to the end cap assembly. The internal component includes a metal adapter bracket, on which an extension fiber optic disc support and a permanent fiber storage disc are connected. Multiple second fiber optic discs are disposed above the permanent fiber storage disc. The extension fiber optic disc support includes a base plate and a support plate arranged at an angle to the base plate. The support plate has multiple hinge mounting slots equidistantly spaced along its inclined direction. One end of each hinge mounting slot has a limiting baffle. The second fiber optic discs are connected to hinges that mate with the hinge mounting slots and support hinges that mate with the limiting baffles to support the second fiber optic discs.

[0007] In a preferred embodiment of the present invention, the quick-release support includes a support portion and a connecting portion, wherein the connecting portion is provided with a protrusion that mates with a notch structure and a notch that mates with the protrusion structure.

[0008] In a preferred embodiment of the present invention, the hinge includes two connecting arms for connecting a second optical fiber disk and a hinge shaft located between the two connecting arms, the diameter of which corresponds to the diameter of the hinge mounting groove.

[0009] In a preferred embodiment of the present invention, the support hinge includes a support rod and two hinge shafts connected to the support rod for connecting the second optical fiber disk. The two hinge shafts are arranged in a mirror-symmetrical manner, and each hinge shaft is L-shaped.

[0010] In a preferred embodiment of the present invention, the second optical fiber disk is detachably connected to a transition hinge for connecting the hinged hinge to the extended optical fiber disk fixing bracket.

[0011] In a preferred embodiment of the present invention, the adapter hinge includes a mounting hole for connecting the hinge shaft and a connecting shaft for engaging with a circular hole on the extended fiber optic disc fixing bracket.

[0012] In a preferred embodiment of the present invention, the limiting baffle is elastically deformable and connected to the lower end of the hinge mounting groove.

[0013] In a preferred embodiment of the present invention, an optional additional fiber storage tray is further included, wherein the optional additional fiber storage tray is provided with an optical fiber inlet / outlet fiber storage tray interface, an optical cable pre-compression structure, and a hole structure for connecting the tray link hinge.

[0014] In a preferred embodiment of the present invention, the adapter metal bracket is fixedly connected to the end cap assembly through a protective structure, the upper end of the adapter metal bracket is fixedly connected to an extended fiber optic disc fixing bracket, and the lower end of the adapter metal bracket is fixedly connected to a permanent fiber storage disc.

[0015] The beneficial effects of this invention are as follows: This invention is used in the front end of optical cable transmission (where more and more complex optical fibers are used inside the fiber optic splice box, thus requiring a larger fiber storage disk to store the fibers; this fiber optic splice box was developed to address this need). This fiber optic splice box features a larger fiber optic splice box disk and more diverse assembly options, allowing the disks used within the fiber optic splice box to better meet customer requirements;

[0016] Furthermore, the present invention adopts a modular design, which enhances the capacity and flexibility of the fiber optic splice box, allowing it to accommodate larger fiber optic splice box assemblies, thereby providing a wider range of assembly options and better meeting customers' requirements for multiple front-end optical cable splitting.

[0017] Furthermore, the present invention connects the extended fiber optic disc fixing bracket and the permanent fiber storage disc through an adapter metal bracket. The design of multiple first fiber optic discs and second fiber optic discs can realize the rotation of various types of discs through hinges, which is convenient for operation. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of a general-purpose fiber optic connector cassette;

[0020] Figure 2 is a schematic diagram of the box;

[0021] Figure 3 is an exploded view of the internal components;

[0022] Figure 4 is a schematic diagram of the adapter metal bracket;

[0023] Figure 5 is a schematic diagram of the protective structure;

[0024] Figure 6 is a schematic diagram of a permanent fiber storage tray;

[0025] Figure 7 is a schematic diagram of the optical fiber disk fixing bracket;

[0026] Figure 8 is a front view of the extended fiber optic disc fixing bracket;

[0027] Figure 9 is a side view of the extended fiber optic disc fixing bracket;

[0028] Figure 10 is a schematic diagram of the quick-release support component;

[0029] Figure 11 is a schematic diagram of the quick-release support assembly;

[0030] Figure 12 is a schematic diagram of the assembly of the extended fiber optic disc fixing bracket and quick-release support;

[0031] Figure 13 is an exploded view of the extended fiber optic disc fixing bracket and quick-release support;

[0032] Figure 14 is a schematic diagram of the fiber optic disk extension bracket;

[0033] Figure 15 is a schematic diagram of a hinged hinge;

[0034] Figure 16 is a schematic diagram of the supporting hinge;

[0035] Figure 17 is a schematic diagram of the assembly of the hinge, the support hinge and the extended fiber optic disk extension bracket.

[0036] Figure 18 is a schematic diagram of the operation of the hinge, the support hinge and the extended fiber optic disk extension bracket.

[0037] Figure 19 is a schematic diagram of the hinged hinge, the support hinge and the extended fiber optic disk extension bracket.

[0038] Figure 20 is a schematic diagram of the adapter hinge for extending the optical fiber disk;

[0039] Figure 21 is a schematic diagram of the disk connection hinge;

[0040] Figure 22 is a schematic diagram of the end cap assembly;

[0041] Figure 23 is a schematic diagram of the clamp assembly;

[0042] In the diagram: 1-Box body, 2-Internal components, 3-End cap assembly, 4-Clamping assembly, 2-1-Adapter metal bracket, 2-2-Protective structure, 2-3-Permanent fiber storage tray, 2-4-Extended fiber optic tray fixing bracket, 2-5-Optional additional fiber storage tray, 2-6-Disc connection hinge, 2-7-First fiber optic tray, 2-8-Quick-release support, 2-9-Extended fiber optic tray extension bracket, 2-10-Hinged hinge, 2-11-Support hinge, 2-12-Second fiber optic tray, 2-13-Adapter hinge, 2-4-1-Protruding structure, 2-4-2-Groove notch structure, 2-4-3-Oval hole. 2-8-1-Support part, 2-8-2-Connecting part, 2-8-3-Notch part, 2-8-4-Protrusion part, 2-8-5-End, 2-9-1-Base plate, 2-9-2-Support plate, 2-9-3-Hinge mounting groove, 2-9-4-Limiting baffle, 2-10-1-Connecting arm, 2-10-2-Hinge shaft, 2-11-1-Support rod, 2-11-2-Hinge shaft, 2-13-1-Mounting hole, 2-13-2-Connecting shaft. Embodiments of the present invention

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] Example 1

[0045] As shown in Figure 1-13, this invention discloses a universal fiber optic splice cassette, including a cassette body 1, an end cap assembly 3, and a clamp assembly 4. The cassette body 1 and the end cap assembly 3 are connected by the clamp assembly 4. The cassette body 1 protects the internal structure of the universal fiber optic splice cassette, and the horizontal and vertical lines on it serve as reinforcing ribs to strengthen the structural strength of the cassette body. An internal component 2 connected to the end cap assembly 3 is provided inside the cassette body 1. The internal component 2 is fixed to the end cap assembly 3 by screws. The internal component 2 includes an adapter metal bracket 2-1, which connects to the end cap assembly 3. An expansion fiber optic disc fixing bracket 2-4 and a permanent fiber storage device are connected to the adapter metal bracket 2-1. The fiber optic tray 2-3 and the fiber optic tray fixing bracket 2-4 are fixed to the upper end of the adapter metal bracket 2-1 by screws. The permanent fiber storage tray 2-3 is fixed to the lower end of the adapter metal bracket 2-1 by screws. The relative positions of the adapter metal bracket 2-1, the fiber optic tray fixing bracket 2-4, and the permanent fiber storage tray 2-3 are fixed. Multiple first fiber optic trays 2-7 are arranged vertically on top of the permanent fiber storage tray 2-3. The multiple first fiber optic trays 2-7 are fixed to the permanent fiber storage tray 2-3 as a whole by felt 2-9. The technical feature that makes a substantial contribution to the inventiveness of this invention is that multiple circular holes 2 arranged in a linear array are provided on both sides of the fiber optic tray fixing bracket 2-4. -4-3, the first fiber optic disc 2-7 is connected to the circular hole 2-4-3 via the disc connecting hinge 2-6. The first fiber optic disc 2-7 can rotate around the disc connecting hinge 2-6. The middle part of the extended fiber optic disc fixing bracket 2-4 is provided with a through hole extending along the central axis of the box 1. The two inner sidewalls of the through hole are respectively arranged in a mirror array with protrusion structures 2-4-1 and groove notch structures 2-4-2. The protrusion structures 2-4-1 and notch structures 2-4-2 on the two inner sidewalls are arranged in a one-to-one correspondence. A quick-release support 2-8 can be inserted into the through hole. The first fiber optic disc 2-7, located on the upper layer of the quick-release support 2-8, is supported by the quick-release support 2-8 and rotates. The fixed angle, i.e., the cooperation of the expansion fiber optic disc fixing bracket 2-4 and the quick-release support 2-8, serves to temporarily fix the expansion disc, facilitating the operation of the lower disc and preventing the upper disc from falling down and affecting construction. The protruding structures 2-4-1 and the notch structures 2-4-2 on the two inner side walls are arranged one-to-one, and the quick-release support 2-8 can be inserted into the through hole. The first fiber optic disc 2-7 located on the upper layer of the quick-release support 2-8 is supported and rotated by the quick-release support 2-8 at a certain angle, that is, the quick-release support 2-8, which is used to support the first fiber optic disc 2-7 above the Nth layer and realize the replacement of the Nth layer expansion fiber optic disc, can be inserted into the through hole, where N≥1. The shape of the box 1 in this embodiment is not limited. In this embodiment, it is a cylinder, but it can also be a cube of other shapes. The shape of the end cap assembly 3 in this embodiment is not limited. In this embodiment, it is a cylinder to match the box 1. In other embodiments, it can also be a cube of other shapes.

[0046] Example 2

[0047] As shown in Figures 14-20, in a preferred embodiment of the present invention, the following technical solution can also be adopted: The extended fiber optic disc support 2-9 includes a base plate 2-9-1 and a support plate 2-9-2 arranged at an angle to the base plate 2-9-1. The support plate 2-9-2 is provided with a plurality of hinge mounting slots 2-9-3 arranged at equal intervals along its inclined direction. One end of each hinge mounting slot 2-9-3 is provided with a limiting baffle 2-9-4. The second fiber optic disc 2-12 is connected by a hinge hinge 2-10 for engaging with the hinge mounting slot 2-9-3 and a support hinge 2-11 for engaging with the limiting baffle 2-9-4 to support the second fiber optic disc 2-12. The quick-release support 2-8 includes a support portion 2-8-1 and a connecting portion 2-8-2. The connecting portion 2-8-2 is provided with a protrusion 2-8-4 that engages with the notch structure 2-4-2 and a notch 2-8-3 that engages with the protrusion structure 2-4-1. The hinge 2-10 includes two connecting arms 2-10-1 for connecting the second fiber optic disc 2-12 and a first hinge pin 2-10-2 located between the two connecting arms 2-10-1. The diameter of the first hinge pin 2-10-2 corresponds to the diameter of the hinge mounting groove 2-9-3. The support hinge 2-11 includes a support rod 2-11-1 and two second hinge pins 2-11-2 connected to the support rod 2-11-1 for connecting the second fiber optic disc 2-12. The two second hinge pins 2-11-2 are arranged in a mirror-symmetrical manner, and each second hinge pin 2-11-2 is L-shaped. The second fiber optic disc 2-12 is detachably connected to a transition hinge 2-13 for connecting the hinge hinge 2-10 to the extended fiber optic disc fixing bracket 2-4. The adapter hinge 2-13 includes a mounting hole 2-13-1 for connecting the first hinge shaft 2-10-2 of the hinge hinge 2-10 and a connecting shaft 2-13-2 for engaging with a circular hole 2-4-3 on the extended fiber optic disc fixing bracket 2-4. A limiting baffle 2-9-4 is elastically deformable and connected to the lower end of the hinge mounting groove 2-9-3. This technical solution has better scalability than technical solution one, thereby expanding the application range of the invention.

[0048] Example 3

[0049] In a preferred embodiment of the present invention, a simple and easy-to-use quick-release support 2-8 is disclosed. The quick-release support 2-8 includes a support part 2-8-1 and a connecting part 2-8-2. The support part 2-8-1 is cylindrical, and the connecting part 2-8-2 is boomerang-shaped. The support part 2-8-1 and the cylindrical part are vertically fixed together as an integral structure. The connecting part 2-8-2 is provided with a protrusion 2-8-4 that cooperates with the notch structure 2-4-2 and a notch 2-8-3 that cooperates with the protrusion structure 2-4-1. The protrusion 2-8-4 and the notch 2-8-3 are designed to ensure that the quick-release support 2-8 can be smoothly inserted into each layer of the through hole on the expansion fiber optic disc fixing bracket 2-4, thereby adjusting its height to facilitate the replacement of different layers of expansion fiber optic discs. When using this invention, assuming it is necessary to replace the 5th layer of extended fiber optic reel from top to bottom, the quick-release support 2-8 needs to be inserted between the 4th layer and the 5th layer of extended fiber optic reel. The connecting part 2-8-2 divides all the extended fiber optic reels in two, and the support part 2-8-1 lifts the 4th layer and all the extended fiber optic reels above it, causing them to rotate at a certain angle, thus facilitating manual replacement of the 5th layer of extended fiber optic reel. Furthermore, this invention can also... The permanent fiber storage tray 2-3 is provided with an alignment hole 2-3-1, a raised pressure tongue 2-3-2, a felt insertion hole 2-3-3, and a guide rail 2-3-4. The alignment hole 2-3-1 is used to pass through a screw to fix the permanent fiber storage tray 2-3 onto the adapter metal bracket 2-1. The raised pressure tongue 2-3-2 can press down the expansion fiber tray fixing bracket 2-4 and restrict the expansion fiber tray fixing bracket 2-4 from being pulled out, thus playing a fixing role and facilitating the installation of the product.

[0050] Example 4

[0051] As shown in Figure 22, in another embodiment of the present invention, the universal fiber optic junction box further includes an improved end cap assembly 3 structure. The end cap assembly 3 includes an end cap body, a sealing ring, and multiple detachable port modules. The end cap body has multiple mounting slots for installing the port modules, and a snap-fit ​​structure is provided on the inner wall of the mounting slots. Each port module includes a module body and multiple optical cable inlets integrally formed with the module body. A groove is provided on the outer wall of the module body to cooperate with the snap-fit ​​structure.

[0052] This design allows users to select different numbers and types of port modules 3-3 according to actual needs, improving the product's flexibility and applicability. For example, single-port, dual-port, or multi-port modules can be selected to accommodate different numbers of fiber optic cable access requirements. A sealing ring 3-2 is positioned between the end cap body 3-1 and the housing 1 to ensure the sealing performance of the entire junction box.

[0053] Furthermore, internal component 2 in this embodiment also includes an adjustable fiber optic splitter mounting bracket. This bracket is detachably mounted to the adapter metal bracket by bolts and features multiple flexible slots for securing fiber optic splitters of different sizes. This design allows the junction box to accommodate various types of fiber optic splitters, further improving the product's versatility.

[0054] Example 5

[0055] In another embodiment of the present invention, the internal component 2 of the universal fiber optic junction box further includes a novel fiber optic fusion splice tray. This fusion splice tray is positioned below the permanent fiber storage tray 2-3 and is fixedly connected to the adapter metal bracket 2-1 by screws. The surface of the fusion splice tray has multiple arc-shaped fusion slots, each capable of accommodating one fiber optic splice point. Multiple elastic clips are provided around the fusion slots for securing heat shrink tubing.

[0056] The central area of ​​the fiber optic splice tray features a rotatable fiber distributor comprising multiple radially arranged fiber slots. This design effectively separates fibers from different directions and guides them to their respective splice slots, reducing the risk of fiber entanglement and improving splicing efficiency and ease of fiber management.

[0057] In addition, the inner wall of the housing 1 in this embodiment is provided with multiple evenly distributed reinforcing ribs. These reinforcing ribs not only enhance the structural strength of the housing 1, but also guide and protect the optical cable when it enters the housing 1. The bottom of the housing 1 is also provided with a drainage hole and a waterproof and breathable membrane, which can effectively prevent water accumulation inside the housing, while maintaining internal air circulation and preventing moisture condensation.

[0058] In the description of this application, it should be noted that the terms "upper," "lower," 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 application 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0059] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0060] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A universal fiber optic junction box, comprising a box body (1) and an internal component (2) disposed within the box body (1), the internal component (2) comprising an adapter metal bracket (2-1), an expansion fiber optic disc fixing bracket (2-4) and a permanent fiber storage disc (2-3) connected to the adapter metal bracket (2-1), and a plurality of first fiber optic discs (2-7) disposed above the permanent fiber storage disc (2-3), characterized in that: The extended fiber optic disc fixing bracket (2-4) has multiple circular holes (2-4-3) arranged in a linear array on both sides. The first fiber optic disc (2-7) is connected to the circular holes (2-4-3) through the disc connecting hinge (2-6). The first fiber optic disc (2-7) can rotate around the disc connecting hinge (2-6). The extended fiber optic disc fixing bracket (2-4) has a through hole extending along the central axis of the box (1) in the middle. The two inner side walls of the through hole are respectively arranged in a mirror array with a protruding structure (2-4-1) and a notch structure (2-4-2). The protruding structure (2-4-1) and the notch structure (2-4-2) on the two inner side walls are arranged in a one-to-one correspondence. A quick-release support (2-8) can be inserted into the through hole. The first fiber optic disc (2-7) located on the upper layer of the quick-release support (2-8) is supported by the quick-release support (2-8) and rotated at a certain angle.

2. The universal fiber optic connector cassette according to claim 1, characterized in that, The quick-release support (2-8) includes a support part (2-8-1) and a connecting part (2-8-2). The connecting part (2-8-2) is provided with a protrusion (2-8-4) that cooperates with the notch structure (2-4-2) and a notch (2-8-3) that cooperates with the protrusion structure (2-4-1).

3. The universal fiber optic connector cassette according to claim 1, characterized in that, The adapter metal bracket (2-1) is fixed to the end cap assembly (3) through the protective structure (2-2). An extended fiber optic disc fixing bracket (2-4) is fixed to the upper end of the adapter metal bracket (2-1), and a permanent fiber storage disc (2-3) is fixed to the lower end of the adapter metal bracket (2-1).

4. A universal fiber optic junction box, comprising a box body (1) and an internal component (2) disposed within the box body (1), the internal component (2) comprising an adapter metal bracket (2-1), an extension bracket (2-9) for expanding fiber optic discs and a permanent fiber storage tray (2-3) connected to the adapter metal bracket (2-1), and a plurality of second fiber optic discs (2-12) disposed above the permanent fiber storage tray (2-3), characterized in that: The extended fiber optic disc support (2-9) includes a base plate (2-9-1) and a support plate (2-9-2) arranged at an angle to the base plate (2-9-1). The support plate (2-9-2) is provided with a plurality of hinge mounting slots (2-9-3) arranged at equal intervals along its inclined direction. One end of each hinge mounting slot (2-9-3) is provided with a limit baffle (2-9-4). The second fiber optic disc (2-12) is connected by a hinge hinge (2-10) for cooperating with the hinge mounting slot (2-9-3) and a support hinge (2-11) for cooperating with the limit baffle (2-9-4) to support the second fiber optic disc (2-12).

5. The universal fiber optic connector cassette according to claim 4, characterized in that, The hinge (2-10) includes two connecting arms (2-10-1) for connecting the second fiber optic disc (2-12) and a first hinge pin (2-10-2) located between the two connecting arms (2-10-1), the diameter of the first hinge pin (2-10-2) corresponding to the diameter of the hinge mounting groove (2-9-3).

6. The universal fiber optic connector cassette according to claim 4, characterized in that, The support hinge (2-11) includes a support rod (2-11-1) and two second hinge shafts (2-11-2) connected to the support rod (2-11-1) for connecting the second optical fiber disk (2-12). The two second hinge shafts (2-11-2) are arranged in a mirror symmetrical manner, and each second hinge shaft (2-11-2) is L-shaped.

7. The universal fiber optic connector cassette according to claim 5, characterized in that, The second fiber optic disc (2-12) is detachably connected to a transition hinge (2-13) for connecting the hinge hinge (2-10) and the extended fiber optic disc fixing bracket (2-4).

8. The universal fiber optic connector cassette according to claim 7, characterized in that, The adapter hinge (2-13) includes a mounting hole (2-13-1) for connecting the first hinge shaft (2-10-2) of the hinge hinge (2-10) and a connecting shaft (2-13-2) for engaging with the circular hole (2-4-3) on the extended fiber optic disc fixing bracket (2-4).

9. The universal fiber optic connector cassette according to claim 4, characterized in that, The limiting baffle (2-9-4) can be elastically deformed and connected to the lower end of the hinge mounting groove (2-9-3).

10. The universal fiber optic junction box according to any one of claims 1-9, characterized in that, It also includes an optional additional fiber storage tray (2-5), which is provided with an optical fiber inlet / outlet fiber storage tray interface (2-5-1), an optical cable pre-compression structure (2-5-2), and a hole structure (2-5-3) for connecting the tray link hinge (2-6).

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