Indoor direct-melting type optical fiber distribution frame

Abstract

The utility model discloses an indoor direct-melting type optical fiber distribution frame, which comprises a cabinet body, a cabinet door and a cabinet seat, two supporting vertical frames which are oppositely arranged are fixedly arranged in the cabinet body, and a plurality of metal plate welding trays which are used for implementing optical fiber welding are sequentially and movably inserted between the two supporting vertical frames from bottom to top. Side cable passing holes are formed in the two side walls of the cabinet body in a penetrating mode, cabinet end cable passing holes are formed in the top wall or / and the bottom wall of the cabinet body in a penetrating mode, and cable hole plugging devices are correspondingly filled in the cabinet end cable passing holes; the metal plate welding trays can be pulled outwards along the two supporting vertical frames so that operations such as optical fiber welding, inspection and operation maintenance can be conveniently carried out, the operation is convenient, the efficiency is high, through holes for optical cables to penetrate through can be formed in the two sides and the upper end or / and the lower end of the cabinet body, optical cable wiring is convenient and flexible, a plurality of metal plate welding trays can be inserted in the cabinet body at a time, and the cost is low. The capacity of the distribution frame is large, and centralized welding and management of optical cables are facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of centralized optical fiber fusion splicing equipment, and in particular to an indoor direct fusion type optical fiber distribution frame. Background Technology

[0002] Currently, in fiber optic communication networks, such as Fiber to the Home (FTTH), base stations, and data centers, fiber optic fusion splice distribution frames are typically used to centrally splice, fix, store, and protect multiple optical fibers. They are particularly suitable for long-distance fiber optic trunk connections, offering fewer end-splitting points and simplified management, making them a crucial component of fiber optic cabling systems. However, fiber optic fusion splice distribution frames have limited capacity. When the number of fiber splices is large, the number of frames needs to be increased, resulting in a large installation space occupation, cluttered layout, and, to some extent, hindering resource and cost savings. Fiber optic distribution frames can, to a certain extent, solve these problems.

[0003] Typically, fiber optic distribution frames contain several drawer-type fiber optic boxes. The fiber optic splice points are all located inside these boxes, and because these drawer-type boxes are sealed, their top panels need to be removed for fiber optic splicing, fault diagnosis, and maintenance. This process is cumbersome and inefficient. Furthermore, these drawer-type boxes are typically made of plastic, which leads to rapid aging and a short lifespan. In addition, the cable entry and exit points on currently used fiber optic distribution frames are generally located at the top or bottom, and their number is limited by the cabinet's end area, making cabling inconvenient.

[0004] Therefore, further improvements are needed to the fiber optic distribution frame to overcome the aforementioned shortcomings. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an indoor direct-fusion type fiber optic distribution frame that is convenient, efficient, and easy to install optical cables and allows for flexible arrangement of optical cable lines.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: an indoor direct-fusion fiber optic distribution frame, including a vertical cabinet, a cabinet door hinged to the front end of the cabinet, a cabinet base fixedly installed at the bottom end of the cabinet, two opposing support frames fixedly installed inside the cabinet, and a number of sheet metal splicing trays for performing fiber optic splicing being movably inserted between the two support frames from bottom to top, side cable passage holes being provided through the two side walls of the cabinet, and cabinet end cable passage holes being provided through the top wall and / or bottom wall of the cabinet, with a corresponding cable hole sealing device filling each cabinet end cable passage hole.

[0007] As a preferred technical solution, the sheet metal welding tray includes a welding plate, with both sides of the welding plate being inserted into the corresponding support frame. The top surface of the welding plate is provided with welding grooves, and fiber passage holes are provided through the welding plate. Fiber chucks are installed at the bottom end of the welding plate.

[0008] As a preferred technical solution, the front end of the welding plate is provided with an upwardly bent shielding flange.

[0009] As a preferred technical solution, the middle part of the shielding flange is provided with an operating notch to facilitate pull-out operation.

[0010] As a preferred technical solution, the inner sidewall of the cabinet is provided with cable clamps for binding optical cables corresponding to each of the side cable holes, and cable observation ports for cooperating with each of the cable clamps are provided through the support frame, and the cable observation ports are located on the front surface of the support frame.

[0011] As a preferred technical solution, the side cable hole is provided with rodent-proof needles on its hole wall.

[0012] As an improvement to the above technical solution, the cable hole sealing device includes a rubber ring sleeve that is adapted to the cable hole at the cabinet end. The surface of the rubber ring sleeve is sealed with a rubber diaphragm, and a cable-passing cut is provided through the rubber diaphragm to facilitate the passage of optical cables.

[0013] Due to the adoption of the above technical solution, the indoor direct-fusion fiber optic distribution frame includes a vertical cabinet with a hinged door at the front end and a fixed base at the bottom. Two opposing support frames are fixedly installed inside the cabinet. Several sheet metal splicing trays for fiber optic splicing are movably inserted between the two support frames from bottom to top. Side cable passage holes are provided through both side walls of the cabinet, and cabinet end cable passage holes are provided through the top and / or bottom walls. Each cabinet end cable passage hole is filled with a corresponding cable hole sealing device. This utility model has the following advantages: the sheet metal splicing trays can be pulled outwards along the two support frames to facilitate fiber optic splicing, inspection, and maintenance operations, making operation convenient and efficient. Through-holes for fiber optic cables can be provided on both sides and at the top and / or bottom of the cabinet, making fiber optic cable routing convenient and flexible. Multiple sheet metal splicing trays can be inserted into the cabinet at one time, increasing the capacity of the distribution frame and facilitating centralized splicing and management of fiber optic cables. Attached Figure Description

[0014] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0015] Figure 1 This is a structural schematic diagram of the cabinet door in the open state according to an embodiment of this utility model;

[0016] Figure 2 This is a side view of the cabinet door in the open state according to an embodiment of this utility model;

[0017] Figure 3 This is a top view of the cabinet door in the open state according to an embodiment of this utility model;

[0018] Figure 4 yes Figure 1 Enlarged structural diagram at point A;

[0019] Figure 5 This is a top view of the sheet metal welding tray according to an embodiment of this utility model;

[0020] In the diagram: 1-Cabinet body; 2-Cabinet door; 3-Cabinet base; 4-Supporting frame; 5-Sheet metal welding tray; 51-Welding plate; 52-Welding groove; 53-Fiber optic hole; 54-Fiber optic claw; 55-Shielding flange; 56-Operating notch; 6-Side cable passage hole; 7-Anti-rodent needle; 8-Cable clamp ring; 9-Cable clamp observation port; 10-Cabinet end cable passage hole; 11-Rubber ring sleeve; 12-Rubber diaphragm; 13-Cable threading cut. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0022] like Figures 1 to 5 As shown, the indoor direct-fusion fiber optic distribution frame includes a vertical cabinet 1. A cabinet door 2 is hinged to the front end of the cabinet 1. The cabinet door 2 can be a single door or a double door, and a lock is installed on the cabinet door 2 to ensure it remains stably closed for extended periods. A cabinet base 3 is fixedly installed at the bottom of the cabinet 1. Support legs are arranged at the bottom of the cabinet base 3 to elevate the cabinet 1 to a certain height, facilitating the installation of optical cables at the bottom of the cabinet 1 when necessary.

[0023] Two opposing support frames 4 are fixedly installed inside the cabinet 1. Several sheet metal splicing trays 5 for fiber optic splicing are movably inserted between the two support frames 4 from bottom to top. Corresponding insertion slots are arranged on the adjacent surfaces of the two support frames 4, and the sheet metal splicing trays 5 are slidably inserted into the corresponding slots. The plug-in assembly of the sheet metal splicing trays 5 allows them to be pulled out from between the two support frames 4, facilitating fiber optic splicing, inspection, and maintenance, providing a larger operating space and improving work efficiency. Based on the sheet metal material of the sheet metal splicing trays 5, they have a slow aging rate, high strength, and are not easily damaged, significantly extending their service life.

[0024] Of course, depending on the specific application, to reduce the height of the cabinet 1 for easier fiber optic splicing and other operations, the width of the cabinet 1 can be appropriately increased and the number of support frames 4 can be increased accordingly. When increasing the width of the cabinet 1 and the number of support frames 4, it is best to arrange the support frames 4 in pairs for ease of use, so that space can be formed between two adjacent pairs of support frames 4 for laying optical cables.

[0025] The sheet metal splicing tray 5 in this embodiment includes a sheet metal splicing plate 51. Both sides of the splicing plate 51 are inserted into the corresponding support frame 4. A splicing groove 52 is provided on the top surface of the splicing plate 51. The splicing groove 52 is used to space and fix the spliced ​​optical fibers. Fiber-passing holes 53 are provided through the splicing plate 51. A fiber-coiling claw 54 is installed at the bottom end of the splicing plate 51. The fiber-coiling claw 54 is used to coil up optical fibers with redundant length to prevent them from being pulled down when the lower sheet metal splicing tray 5 is pulled out, thus helping to protect the optical fibers and the firmness of the splices. The front end of the splicing plate 51 has an upwardly bent shielding flange 55, which can shield the optical fiber splice points and the splicing groove 52 on the splicing plate 51, allowing the interior to be displayed more neatly after the cabinet door 2 is opened. The middle part of the shielding flange 55 is provided with an operation notch 56 for easy pulling operation, which can be used to accommodate the hand so as to apply force to pull the welding plate 51.

[0026] Side cable passage holes 6 are provided on both sides of the cabinet 1. One side of the side cable passage hole 6 is used for introducing optical cables, and the other side is used for leading out optical cables. Rat-proof spikes 7 are provided on the walls of the side cable passage holes 6, providing a certain degree of rodent prevention. Since multiple side cable passage holes 6 are provided on both sides of the cabinet 1, this embodiment is best suited for indoor use to prevent rainwater intrusion. When the support frame 4 is configured in two or more pairs, rows of side cable passage holes 6 can also be provided on the rear side wall of the cabinet 1 to facilitate cable connection within the cabinet, help keep the wiring inside the cabinet neat, and facilitate subsequent fault finding, maintenance, and other operations. Figure 2 As shown, the side cable hole 6 is configured as an elliptical hole, which can accommodate at least two optical cables at the same time.

[0027] In this embodiment, cable clamps 8 are provided on the inner side wall of the cabinet 1 corresponding to each of the side cable passage holes 6 for securing optical cables. When the optical cable is introduced into or led out of the cabinet 1, it passes through the cable clamp 8 to secure and fix it, preventing cross-entanglement and loosening of the fiber core, thus helping to maintain the stability of the optical fiber splicing. Cable observation ports 9 are provided through the support frame 4 to cooperate with each of the cable clamps 8, and the cable observation ports 9 are located on the front surface of the support frame 4. The cable observation ports 9 allow observation of the optical cable's insertion, ensuring that the optical cable can pass smoothly through the cable clamps 8, thereby improving insertion efficiency. The cable clamp 8 can be configured as a hose clamp, and the bolts on the hose clamp can simultaneously fix the optical cables introduced or led out of the same side cable passage hole 6. The hose clamp of the cable clamp 8 is well known to those skilled in the art and is not shown in detail.

[0028] Cable passage holes 10 are provided through the top and / or bottom walls of the cabinet 1, and each cable passage hole 10 is filled with a corresponding cable hole sealing device. The cable passage holes 10 can be used as spare holes; when not in use, they can be sealed by the cable hole sealing device to prevent the entry of foreign objects. Specifically, the cable hole sealing device includes a rubber ring 11 adapted to the cable passage hole 10. The rubber ring 11 can be self-adhesive and fixed within the cable passage hole 10, acting as a plug. A rubber diaphragm 12 is sealed on the surface of the rubber ring 11, and a cable insertion slit 13 is provided through the rubber diaphragm 12 to facilitate the passage of optical cables. The cable insertion slit 13 can be configured as a cross shape. The rubber diaphragm 12 also has good elasticity, can fit with optical cables of different diameters, and can tightly fit over the outside of the optical cable after it has passed through, preventing the entry of foreign objects.

[0029] by Figure 1Taking the display as an example, the welding capacity of one sheet metal welding tray 5 is 24 cores, and a total of 59 sheet metal welding trays 5 are provided, so that the patch panel achieves a large capacity of 1416 cores. Depending on the specific situation, the width of the cabinet 1 can also be increased to facilitate the installation of more support frames 4, which is used to realize the lateral expansion of the patch panel and further increase the capacity of the patch panel.

[0030] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. Indoor direct-melt type optical fiber distribution frame, comprising a cabinet body of vertical structure, the front end of the cabinet body is hinged with a cabinet door, and the bottom end of the cabinet body is fixedly installed with a cabinet seat, characterized in that: Two opposite support stands are fixedly installed in the cabinet body, a plurality of sheet metal fusion trays for implementing optical fiber fusion are sequentially and movably inserted between the two support stands from bottom to top, side cable passing holes are arranged through the two side walls of the cabinet body, cabinet end cable passing holes are arranged through the top wall and / or the bottom wall of the cabinet body, and cable hole plugging devices are respectively filled in each cabinet end cable passing hole.

2. The indoor direct-melt fiber distribution frame of claim 1, wherein: The sheet metal fusion tray comprises a fusion flat plate, the two sides of the fusion flat plate are respectively inserted into the corresponding support stand, the top surface of the fusion flat plate is provided with a fusion groove, a fiber passing hole is arranged through the fusion flat plate, and a fiber clamping claw is arranged and installed at the bottom end of the fusion flat plate.

3. The indoor direct-melt fiber distribution frame of claim 2, wherein: The front end of the fusion flat plate is provided with an upwardly bent shielding flange.

4. The indoor direct-melt fiber distribution frame of claim 3, wherein: The middle part of the shielding flange is provided with an operation notch for facilitating pulling operation.

5. The indoor fusion splice fiber distribution frame of claim 1, wherein: Corresponding to each side cable passing hole, a cable binding hoop ring for binding optical cable is arranged on the inner side wall of the cabinet body, a cable binding observation hole for cooperating with each cable binding hoop ring is arranged through the support stand, and the cable binding observation hole is arranged on the front surface of the support stand.

6. The indoor fusion splice fiber distribution frame of claim 1, wherein: A rat-proof thorn needle is arranged on the hole wall of the side cable passing hole.

7. The indoor fusion splice fiber distribution frame of claim 1, wherein: The cable hole plugging device comprises a rubber ring sleeve matched with the cabinet end cable passing hole, a rubber diaphragm is sealed on the surface of the rubber ring sleeve, and a cable passing incision is arranged through the rubber diaphragm for facilitating the passing of optical cable.

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