Universal optical fiber connector box

Abstract

The utility model discloses a universal optical fiber splice closure, which comprises a switching metal support, a permanent fiber storage disc and a plurality of expanded optical fiber discs. Kidney-shaped holes are formed in the two sides of the expanding optical fiber disc fixing support, and the expanding optical fiber discs are connected with the kidney-shaped holes through disc connecting hinges and can move and rotate along the straight line. A through hole is formed in the middle of the fixing support, a protruding structure and an in-groove notch structure are distributed on the inner wall of the hole, and a quick-release supporting piece can be inserted to support and replace the upper-layer expansion optical fiber disc. The universal optical fiber connector box adopts a modular design and is compact in size; the expansion optical fiber disc is provided with fixing structures in various shapes, and can adapt to different optical modules. The expansion optical fiber disc is convenient to disassemble and adjust through the quick-disassembly supporting piece and the chaining hinge; the end cover assembly is simple in sealing point position and has excellent sealing performance. According to the utility model, the defects in the prior art are overcome, and the aspects of miniaturization, modularization adaptability, operation convenience, deployment compactness, sealing performance and the like are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to a universal optical fiber splice box. Background Art

[0002] Universal fiber optic splice closures are essential, critical splicing and protection devices in fiber optic communication networks. They are widely used in various fiber optic cable installation methods, including overhead, duct, and direct burial. They primarily provide continuous optical continuity, sealing, and mechanical strength, and are key components for both straight-through and branch connections. Traditional universal fiber optic splice closures are typically made of synthetic plastics, offering excellent properties such as high strength, corrosion resistance, and waterproofing, meeting the requirements of a wide range of applications, including communications, network systems, and cable television.

[0003] During long-distance transmission of optical cables, a large number of split fibers are required at the front end of the transmission. Therefore, a universal optical fiber splice box is needed that can meet the requirements of splicing and storing more optical fibers while outputting more optical fibers. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a universal fiber optic splice box for the defects in the existing technology, which is used for the front end of optical cable transmission. It can carry larger fiber optic splice box discs and more diverse assembly forms, so that the discs used in the fiber optic splice box can better meet customer requirements.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: the present invention provides a universal optical fiber splice box, comprising a box body, an end cover assembly and a clamp assembly, wherein an internal assembly connected to the end cover assembly is arranged in the box body, the internal assembly comprises a transition metal bracket, an expansion optical fiber disc fixing bracket and a permanent optical fiber storage disc are connected to the transition metal bracket, a plurality of first optical fiber discs are arranged above the permanent optical fiber storage disc, a plurality of circular holes arranged in a linear array are provided on both sides of the expansion optical fiber disc fixing bracket, the first optical fiber discs are connected to the circular holes through disc link hinges, the first optical fiber discs can 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 optical fiber disc fixing bracket, a protrusion structure and a notch structure in a groove are arranged in an array in a mirror-image manner on the two inner side walls of the through hole, the protrusion structures and the notch structures on the two inner side walls are arranged in a one-to-one correspondence, a quick-release support can be inserted into the through hole, and the first optical fiber disc located on the upper layer of the quick-release support is supported by the quick-release support to rotate a certain angle.

[0006] The present utility model also discloses a universal fiber optic splice box, comprising a box body, an end cover assembly and a clamp assembly, wherein an internal assembly connected to the end cover assembly is arranged in the box body, the internal assembly comprises a transition metal bracket, an expansion fiber optic disc extension bracket and a permanent fiber storage disc are connected to the transition metal bracket, a plurality of second fiber optic discs are arranged above the permanent fiber storage disc, the expansion fiber optic disc extension bracket comprises a base plate and a support plate arranged at an angle to the base plate, a plurality of hinge mounting grooves equidistantly arranged along the inclination direction thereof are arranged on the support plate, a limit baffle is arranged at one end of each hinge mounting groove, and the second fiber optic disc is connected by a hinge hinge for cooperating with the hinge mounting groove and a support hinge for cooperating with the limit baffle to support the second fiber optic disc.

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

[0008] In a preferred embodiment of the present invention, the articulated hinge includes two connecting arms for connecting the second optical fiber disc and a hinge shaft located between the two connecting arms, and the diameter of the hinge shaft 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 mirror symmetry, and each hinge shaft is L-shaped.

[0010] In a preferred embodiment of the present invention, the detachable connection of the second optical fiber disc comprises a transfer hinge for realizing the connection between the articulated hinge and the fixed bracket of the extended optical fiber disc.

[0011] In a preferred embodiment of the present invention, the transfer hinge includes a mounting hole for connecting the hinge shaft of the hinge hinge and a connecting shaft for cooperating with a circular hole on the expansion optical fiber disc fixing bracket.

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

[0013] In a preferred embodiment of the present invention, an optional additional fiber storage tray is further included, on which an optical fiber entry and exit interface, an optical cable pre-stressing structure and a hole structure for connecting the disk link hinge are provided.

[0014] In a preferred embodiment of the present invention, the transition metal bracket is fixedly connected to the end cover assembly through a protective structure, the upper end of the transition metal bracket is fixedly connected to the expanded optical fiber disc fixing bracket, and the lower end of the metal bracket is fixedly connected to the permanent fiber storage disc.

[0015] The beneficial effects of the present invention are as follows: the present invention is used for the front end of optical cable transmission (the optical fibers entering the optical fiber splice closure are more numerous and the functions are more complex, so a larger optical fiber storage disc is required to store the optical fibers, and the present optical fiber splice closure comes into being). The present optical fiber splice closure is equipped with a larger optical fiber splice closure disc and a more diverse assembly form, so that the discs used in the present optical fiber splice closure can better meet customer requirements;

[0016] Furthermore, the utility model adopts a modular design to enhance the capacity and flexibility of the optical fiber splice closure, so that it can carry larger optical fiber splice closure discs, thereby providing a richer assembly form and better meeting the customer's requirements for front-end optical cable splitting;

[0017] Furthermore, the present invention connects the expansion optical fiber disc fixing bracket and the permanent optical fiber storage disc through the adapter metal bracket, and adopts the design of multiple first optical fiber discs and second optical fiber discs to realize the hinge rotation of multiple different types of discs, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 is a schematic diagram of a universal fiber optic splice closure;

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

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

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

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

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

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

[0026] Figure 8 This is the main view of the expansion fiber optic disc fixing bracket;

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

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

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

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

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

[0032] Figure 14 This is a schematic diagram of the extension bracket for expanding the optical fiber disc;

[0033] Figure 15 It is a schematic diagram of an articulated hinge;

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

[0035] Figure 17 It is a schematic diagram of the assembly of the articulated hinge, the support hinge and the extended optical fiber disc extension bracket;

[0036] Figure 18 It is a working diagram of the articulated hinge, support hinge and extended optical fiber disc extension bracket;

[0037] Figure 19 It is a schematic diagram of the articulated hinge, support hinge and extended bracket for the expanded optical fiber disc;

[0038] Figure 20 This is a schematic diagram of the transfer hinge for expanding the optical fiber disc;

[0039] Figure 21 This is a schematic diagram of the disc link hinge;

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

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

[0042] In the figure: 1-box body, 2-internal components, 3-end cover assembly, 4-clamp assembly, 2-1-transfer metal bracket, 2-2-protective structure, 2-3-permanent fiber storage tray, 2-4-extended fiber tray fixing bracket, 2-5-optional additional fiber storage tray, 2-6-disc link hinge, 2-7-first fiber tray, 2-8-quick release support, 2-9-extended fiber tray extension bracket, 2-10-hinged hinge, 2-11-support hinge, 2-12-second fiber tray, 2-13-transfer hinge, 2-4-1-convex Starting structure, 2-4-2-notch structure in the groove, 2-4-3-waist-shaped hole, 2-8-1-support part, 2-8-2-connecting part, 2-8-3-notch part, 2-8-4-raised part, 2-8-5-end, 2-9-1-bottom plate, 2-9-2-support plate, 2-9-3-hinge mounting groove, 2-9-4-limit 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. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] Example 1

[0045] like Figure 1-13As shown, the utility model discloses a universal optical fiber splice box, including a box body 1, an end cover assembly 3 and a clamp assembly 4. The box body 1 and the end cover assembly 3 are connected by the clamp assembly 4. The box body 1 can protect the internal structure of the universal optical fiber splice box. The horizontal and vertical lines on it are reinforcing ribs, which play a role in strengthening the strength of the barrel structure. An internal component 2 connected to the end cover assembly 3 is provided in the box body 1. The internal component 2 and the end cover assembly 3 are fixed by screws. The internal component 2 includes a transition metal bracket 2-1, which plays a role in connecting the end cover assembly 3. The transition metal bracket 2-1 is connected to the expansion optical fiber disc fixing bracket 2-4 and the permanent fiber storage disc 2-3 , the expansion optical fiber disc fixing bracket 2-4 is fixed to the upper end of the transfer metal bracket 2-1 by screws, and the permanent fiber storage disc 2-3 is fixed to the lower end of the transfer metal bracket 2-1 by screws. The transfer metal bracket 2-1, the expansion optical fiber disc fixing bracket 2-4 and the permanent fiber storage disc 2-3 are fixed in relative positions. A plurality of first optical fiber discs 2-7 stacked in a vertical direction are arranged above the permanent fiber storage disc 2-3. The plurality of first optical fiber discs 2-7 are fixed to the permanent fiber storage disc 2-3 as a whole by a felt 2-9. The technical feature that makes a substantial contribution to the creativity of the utility model is that a plurality of circular holes 2-7 arranged in a linear array are provided on both sides of the expansion optical fiber disc fixing bracket 2-4. 4-3, the first optical fiber disc 2-7 is connected to the circular hole 2-4-3 through the disc link hinge 2-6, and the first optical fiber disc 2-7 can rotate around the disc link hinge 2-6. A through hole extending along the central axis of the box body 1 is provided in the middle of the extended optical fiber disc fixing bracket 2-4, and a mirror-image array of raised structures 2-4-1 and groove notch structures 2-4-2 are arranged on the two inner side walls of the through hole. The raised structures 2-4-1 and the notch structures 2-4-2 on the two inner side walls are arranged in a one-to-one correspondence. The quick-release support 2-8 can be inserted into the through hole, and the first optical fiber disc 2-7 located on the upper layer of the quick-release support 2-8 is supported by the quick-release support 2-8 to rotate. The fixed angle, that is, the expansion optical fiber disc fixing bracket 2-4 and the quick-release support 2-8 are used in conjunction to temporarily fix the expansion disc, so that the upper disc will not fall down and affect the construction when the staff is operating the lower disc. The protruding structure 2-4-1 and the notch structure 2-4-2 on the two inner walls are arranged in a one-to-one correspondence. The quick-release support 2-8 can be inserted into the through hole. The first optical fiber disc 2-7 located on the upper layer of the quick-release support 2-8 is supported by the quick-release support 2-8 to rotate a certain angle, that is, the quick-release support 2-8 for supporting the first optical fiber disc 2-7 above the Nth layer to achieve the replacement of the Nth layer of expansion optical fiber disc can be inserted into the through hole, N ≥ 1. The shape of the box body 1 in the embodiment of the present invention 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 cover assembly 3 in the embodiment of the present invention is not limited. In this embodiment, it is a cylinder to match the box body 1. In other embodiments, it can also be a cube of other shapes.

[0046] Example 2

[0047] like Figure 14-20 As shown, in a preferred embodiment of the present invention, the following technical solution can also be adopted: the extended fiber optic disc extension bracket 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 grooves 2-9-3 arranged at equal intervals along its inclination direction. A limit baffle 2-9-4 is provided at one end of each hinge mounting groove 2-9-3. The second fiber optic disc 2-12 is connected by a hinge hinge 2-10 for cooperating with the hinge mounting groove 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. The quick-release support member 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 for cooperating with the notch structure 2-4-2 and a notch portion 2-8-3 for cooperating with the protrusion structure 2-4-1. The articulated hinge 2-10 includes two connecting arms 2-10-1 for connecting to the second fiber optic disc 2-12 and a first hinge shaft 2-10-2 located between the two connecting arms 2-10-1. The diameter of the first hinge shaft 2-10-2 corresponds to the diameter of the hinge mounting slot 2-9-3. 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 to the second fiber optic disc 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. The second fiber optic disc 2-12 is detachably connected to a transfer hinge 2-13 for connecting the articulated hinge 2-10 to the expanded fiber optic disc fixing bracket 2-4. The transfer hinge 2-13 includes a mounting hole 2-13-1 for connecting to the first hinge shaft 2-10-2 of the hinge 2-10 and a connecting shaft 2-13-2 for engaging with the circular hole 2-4-3 on the expansion fiber optic disk fixing bracket 2-4. A limit stop 2-9-4 is elastically deformable and connected to the lower end of the hinge mounting slot 2-9-3. This technical solution offers greater scalability than the first technical solution, thereby expanding the application range of the utility model.

[0048] Example 3

[0049] In a preferred embodiment of the present invention, the present invention discloses a quick-release support 2-8 structural design with a simple structure and easy use, the quick-release support 2-8 includes a support portion 2-8-1 and a connecting portion 2-8-2, including the support portion 2-8-1 being a cylindrical structure, the connecting portion 2-8-2 being a boomerang-shaped structure, and the support portion 2-8-1 being a cylindrical structure, the two being vertically fixedly connected as an integrated structure, the connecting portion 2-8-2 of the present invention is provided with a raised portion 2-8-4 cooperating with the notch structure 2-4-2 and a notch portion 2-8-3 cooperating with the raised structure 2-4-1, the design of the raised portion 2-8-4 and the notch portion 2-8-3 can ensure that the quick-release support 2-8 is smoothly inserted into each layer of the through hole on the expanded optical fiber disk fixing bracket 2-4, thereby achieving the purpose of adjusting its height to facilitate the replacement of expanded optical fiber disks of different layers. When using the present invention, assuming that the fifth layer of expansion optical fiber discs from top to bottom needs to be replaced, the quick-release support member 2-8 needs to be inserted between the fourth layer of expansion optical fiber discs and the fifth layer of expansion optical fiber discs. The connecting portion 2-8-2 divides all the expansion optical fiber discs into two parts. The support portion 2-8-1 lifts the fourth layer of expansion optical fiber discs and all the expansion optical fiber discs above the fourth layer of expansion optical fiber discs to rotate them to a certain angle, thereby facilitating manual replacement of the fifth expansion optical fiber disc. Furthermore, the present invention The permanent fiber storage tray 2-3 can also be provided with an alignment hole 2-3-1, a raised pressing tongue 2-3-2, a raised pressing 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 a screw to fix the permanent fiber storage tray 2-3 on the adapter metal bracket 2-1; the raised pressing tongue 2-3-2 can press the expansion optical fiber tray fixing bracket 2-4 while limiting the expansion optical fiber tray fixing bracket 2-4 from being pulled out, thereby playing a role of fixing and facilitating the installation of the product.

[0050] Example 4

[0051] like Figure 22 As shown, in another embodiment of the present invention, the universal fiber optic splice closure further includes an improved end cap assembly 3 structure. This end cap assembly 3 comprises an end cap body, a sealing ring, and multiple removable port modules. The end cap body is provided with multiple mounting slots for the port modules, and the inner wall of the mounting slot is provided with a snap-fit structure. The port modules comprise a module body and multiple optical cable inlets integrally formed with the module body. The outer wall of the module body is provided with a groove that engages with the snap-fit structure.

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

[0053] Furthermore, the internal assembly 2 in this embodiment also includes an adjustable fiber optic splitter mounting bracket. This bracket is removably mounted to the metal adapter bracket via bolts and features multiple elastic slots for securing fiber optic splitters of varying sizes. This design allows the splice closure to accommodate various fiber optic splitter models, further enhancing the product's versatility.

[0054] Example 5

[0055] In another embodiment of the present invention, the internal components 2 of the universal fiber optic splice closure also include a novel fiber optic splice tray. This tray is positioned below the permanent fiber storage tray 2-3 and is securely connected to the adapter metal bracket 2-1 via screws. The tray's surface features multiple arc-shaped splice slots, each capable of accommodating a single fiber splice point. Multiple elastic clips are positioned around the splice slots to secure the heat shrink tubing.

[0056] The center of the fiber splice tray features a rotatable fiber splitter consisting of multiple radially arranged fiber slots. This design effectively separates fibers from different directions and directs them to the appropriate splice slots, reducing the risk of fiber entanglement and improving splicing efficiency and fiber management convenience.

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

[0058] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings 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 only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0060] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present 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 the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A universal optical fiber splice box, comprising a box body (1) and an internal component (2) arranged in the box body (1), the internal component (2) comprising a transition metal bracket (2-1), an expansion optical fiber disc fixing bracket (2-4) and a permanent optical fiber storage disc (2-3) connected to the transition metal bracket (2-1), a plurality of first optical fiber discs (2-7) arranged above the permanent optical fiber storage disc (2-3), characterized in that: A plurality of circular holes (2-4-3) arranged in a linear array are provided on both sides of the extended optical fiber disc fixing bracket (2-4); the first optical fiber disc (2-7) is connected to the circular hole (2-4-3) via a disc link hinge (2-6); the first optical fiber disc (2-7) can rotate around the disc link hinge (2-6); a through hole extending along the central axis of the box body (1) is provided in the middle of the extended optical fiber disc fixing bracket (2-4); a protrusion structure (2-4-1) and a notch structure (2-4-2) in the groove are arranged in an array in a mirror-image manner on two inner side walls of the through hole; the protrusion 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 optical fiber disc (2-7) located on the upper layer of the quick-release support (2-8) is supported by the quick-release support (2-8) to rotate at a certain angle.

2. The universal optical fiber splice closure according to claim 1, characterized in that: The quick-release support member (2-8) comprises a support portion (2-8-1) and a connecting portion (2-8-2), wherein the connecting portion (2-8-2) is provided with a protrusion (2-8-4) cooperating with a notch structure (2-4-2) and a notch portion (2-8-3) cooperating with the protrusion structure (2-4-1).

3. The universal optical fiber splice closure according to claim 1, wherein: The transition metal bracket (2-1) is fixedly connected to the end cover assembly (3) via a protective structure (2-2); the upper end of the transition metal bracket (2-1) is fixedly connected to an expansion optical fiber disc fixing bracket (2-4); and the lower end of the transition metal bracket (2-1) is fixedly connected to a permanent fiber storage disc (2-3).

4. A universal optical fiber splice box, comprising a box body (1) and an internal component (2) arranged in the box body (1), the internal component (2) comprising a transition metal bracket (2-1), an expansion optical fiber disc extension bracket (2-9) and a permanent optical fiber storage disc (2-3) connected to the transition metal bracket (2-1), a plurality of second optical fiber discs (2-12) arranged above the permanent optical fiber storage disc (2-3), characterized in that: The extended optical fiber disc extension bracket (2-9) comprises 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 grooves (2-9-3) arranged at equal intervals along its inclination direction; a limit baffle (2-9-4) is provided at one end of each hinge mounting groove (2-9-3); and the second optical fiber disc (2-12) is connected to a hinge hinge (2-10) for cooperating with the hinge mounting groove (2-9-3) and a support hinge (2-11) for cooperating with the limit baffle (2-9-4) to support the second optical fiber disc (2-12).

5. The universal optical fiber splice closure according to claim 4, characterized in that: The articulated hinge (2-10) comprises two connecting arms (2-10-1) for connecting a second optical fiber disc (2-12) and a first hinge shaft (2-10-2) located between the two connecting arms (2-10-1), wherein the diameter of the first hinge shaft (2-10-2) corresponds to the diameter of the hinge mounting groove (2-9-3).

6. The universal optical fiber splice closure according to claim 4, characterized in that: The support hinge (2-11) comprises a support rod (2-11-1) and two second hinge shafts (2-11-2) connected to the support rod (2-11-1) and used for connecting the second optical fiber disc (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 optical fiber splice closure according to claim 5, characterized in that: The second optical fiber disc (2-12) is detachably connected to a transfer hinge (2-13) for realizing the connection between the articulated hinge (2-10) and the extended optical fiber disc fixing bracket (2-4).

8. The universal optical fiber splice closure according to claim 7, characterized in that: The transfer hinge (2-13) comprises 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 cooperating with the circular hole (2-4-3) on the expansion optical fiber disc fixing bracket (2-4).

9. The universal optical fiber splice closure according to claim 4, characterized in that: The limiting baffle (2-9-4) is elastically deformable and connected to the lower end of the hinge mounting groove (2-9-3).

10. The universal optical fiber splice closure according to any one of claims 1 to 9, characterized in that: It also includes an optional additional fiber storage tray (2-5), on which an optical fiber entry and exit fiber storage tray interface (2-5-1), an optical cable pre-pressing structure (2-5-2), and a hole structure (2-5-3) for connecting a tray link hinge (2-6) are provided.

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