High-density guide rail type optical fiber distribution box

Abstract

The utility model relates to optical fiber equipment technical field discloses a kind of high-density guide rail type optical fiber distribution box, including box and the cover plate on box, fusion tray group is provided in box, the rear end of box is provided cable input hole and cable output, the side of box is provided slide rail, cover plate includes front cover plate and rear cover plate, the two sides of rear cover plate form downward slide strip, the slide strip is used to slide on slide rail, the rear end of rear cover plate is bent, and two expansion heads are arranged, fixed hole is also arranged in the rear end of box, rear cover plate is pushed into to box from the rear end of box along slide rail, expansion head cooperates in fixed hole, expansion head is fixed on box by screw and is opened, extension plate is set in the front end of rear cover plate, flanging is set in the front end of box, and front cover plate is locked on the extension plate of rear cover plate and the flanging of box by screw.The utility model sets up encapsulation type cover plate, makes fiber connection more convenient, and provides stacked fusion tray, and 96 core high-density optical fiber distribution is realized.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber equipment technology, and in particular to a high-density guide rail type optical fiber distribution box. Background Technology

[0002] Fiber optic distribution boxes are widely used in the equipment of building fiber optic network access, serving as the connection point between communication stations and buildings. Existing fiber optic distribution boxes come in various forms, mostly with an open-top structure, which occupies a large space. Especially in narrow corridors or electrical distribution boxes, the open-top structure is inconvenient to operate, obstructs the operator's view, and may affect manual operation.

[0003] Chinese patent document "CN222812986U" is titled "Fiber Optic Distribution Module, Fiber Optic Distribution Equipment, and Fiber Optic Cable Junction Box," which aims to facilitate the organization of fiber optic cables by installing a distribution module inside a fiber optic box. However, its door-opening structure and the way the internal fiber optic cables are fixed both have certain problems. Utility Model Content

[0004] The purpose of this invention is to solve the above problems by providing a high-density rail-mounted fiber optic distribution box with an encapsulated cover for easier fiber splicing and a stackable fusion splice tray to achieve high-density fiber distribution of 96 cores.

[0005] The technical solution adopted by this utility model is: A high-density guide rail type fiber optic distribution box is characterized by comprising a box body and a cover plate on the box body. A fusion splice tray assembly is provided inside the box body. An optical cable input port and an optical cable output port are provided at the rear end of the box body. A slide rail is provided on the side of the box body. The cover plate includes a front cover plate and a rear cover plate. Downward sliding strips are formed on both sides of the rear cover plate for sliding on the slide rail. The rear end of the rear cover plate is bent and has two expansion heads. A fixing hole is also provided at the rear end of the box body. The rear cover plate is pushed into the box body from the rear end along the slide rail. The expansion heads engage with the fixing holes and are fixed to the box body by screws. An extension plate is provided at the front end of the rear cover plate. A flange is provided on the inner side of the front end of the box body. The front cover plate is locked to the extension plate of the rear cover plate and the flange of the box body by screws.

[0006] Furthermore, an optical fiber guiding channel is provided inside the housing. The optical fiber guiding channel is composed of short protrusions spaced apart at the bottom of the housing, and fixing posts are provided on both sides of the channel to fix the optical fiber bundle.

[0007] Furthermore, a cable management rack is provided at the front end of the box for arranging cables, and a latch is provided at the front end of the cable management rack for fixing the top cover of the cable management rack.

[0008] Furthermore, an optical fiber inlet is also provided on the side of the enclosure, and a fixing bracket is provided inside this inlet.

[0009] Furthermore, a bracket is provided on the side of the box, the bracket being an L-shaped angle iron with mounting holes at the protruding end for fixing the box.

[0010] Furthermore, the fusion splice assembly is a multi-layer stacked type, with at least four fusion splices stacked together, and each fusion splice provides wiring for 24 cores.

[0011] The beneficial effects of this utility model are: (1) The front and rear cover plates make the wiring box more stable after sealing; (2) The cover plate is pushed in through the slide rail design and expansion snap-fit, making the cover plate push-in operation faster and more accurate; (3) 96-core high-density fiber optic cabling provides more convenience for building optical access. Attached Figure Description

[0012] Appendix Figure 1 This is a three-dimensional unfolded schematic diagram of the present invention; Appendix Figure 2 This is a front view of the utility model after installation; Appendix Figure 3 It is attached Figure 2 Side view.

[0013] The labels in the attached diagram are as follows: 1. Housing; 2. Welding tray assembly; 3. Fiber optic cable inlet; 4. Fiber optic cable outlet; 5. Fiber optic guidance channel; 6. Short protrusion; 7. Fixed column; 8. Slide rail; 9. Front cover; 10. Rear cover; 11. Expansion head; 12. Fixing hole; 13. Extension plate; 14. Flanged edge; 15. Cable management rack; 16. Locking clip; 17. Fixed bracket; 18. Support; 19. Mounting holes. Detailed Implementation

[0014] The following detailed description of a high-density guide rail type fiber optic distribution box according to the present invention, with reference to the accompanying drawings, will be provided in detail.

[0015] See appendix Figures 1 to 3The high-density guide rail type fiber optic distribution box of this patent includes a box body 1 and a cover plate on the box body 1. A fusion splice tray group 2 is provided inside the box body 1. A fiber optic cable input hole 3 and a fiber optic cable output port 4 are provided at the rear end of the box body 1. The incoming fiber optic cable enters from the fiber optic cable tray input hole, and the outgoing fiber optic cable exits from the fiber optic cable output port 4. The optical fibers in the incoming and outgoing fiber optic cables are connected in the fusion splice tray group 2 to realize the optical path.

[0016] The fusion splice tray group 2 is a multi-layer stacked type, with a minimum of four fusion splice trays stacked together. Each fusion splice tray provides wiring for 24 cores, forming a fiber optic connection of at least 96 cores. The fiber optic guide channel 5 is set inside the housing 1. The fiber optic guide channel 5 consists of short protrusions 6 spaced apart at the bottom of the housing 1. Fixing posts 7 are set on both sides of the channel for fixing the fiber bundles.

[0017] A slide rail 8 is provided on the side of the housing 1. The cover plate includes a front cover plate 9 and a rear cover plate 10. The two sides of the rear cover plate 10 form downward sliding strips (not shown in the figure). The sliding strips are used to slide on the slide rail 8. The rear end of the rear cover plate 10 is bent and two expansion heads 11 are provided. A fixing hole 12 is also provided at the rear end of the housing 1. The rear cover plate 10 is pushed into the housing 1 from the rear end of the housing 1 along the slide rail 8. The expansion heads 11 are fitted into the fixing holes 12. The expansion heads 11 are opened and fixed to the housing 1 by screws. An extension plate 13 is provided at the front end of the rear cover plate 10. A flange 14 is provided on the inner side of the front end of the housing 1. The front cover plate 9 is locked to the extension plate 13 of the rear cover plate 10 and the flange 14 of the housing 1 by screws.

[0018] The front end of the enclosure 1 is equipped with a cable management rack 15 for cable arrangement. A latch 16 is located at the front end of the cable management rack 15 to secure its top cover (not shown in the figure). An optical fiber inlet is also located on the side of the enclosure 1, with a mounting bracket 17 inside this inlet. A bracket 18, an L-shaped angle iron, is also located on the side of the enclosure 1. The protruding end of the angle iron has mounting holes 19 for securing the enclosure 1.

[0019] In use, the fiber optic distribution box of this patent is fixed to a building or fixed location by the bracket 18. The incoming and outgoing optical cables are introduced into the box 1 through the input and output ports, respectively, and then spliced ​​on the splice tray. The optical fibers in the cables are arranged in the internal guide channels. Finally, the rear cover is pushed into the top of the box 1 along the slide rail, and its expansion head 11 fits into the fixing hole 12 of the box 1, expanding and securing it. The front cover 9 is then fixed to the rear cover 10 and the inner side of the box 1, completing the fiber optic cabling within the distribution box.

[0020] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A high-density DIN rail type fiber optic distribution box, characterized in that: The device includes a housing and a cover plate. The housing contains a fusion splice assembly. The rear end of the housing has an optical cable input port and an optical cable output port. A slide rail is provided on the side of the housing. The cover plate includes a front cover plate and a rear cover plate. The two sides of the rear cover plate form downward-facing sliding strips for sliding on the slide rail. The rear end of the rear cover plate is bent and has two expansion heads. A fixing hole is also provided at the rear end of the housing. The rear cover plate is pushed into the housing from the rear end along the slide rail. The expansion heads engage with the fixing holes and are fixed to the housing by screws. An extension plate is provided at the front end of the rear cover plate. A flange is provided on the inner side of the front end of the housing. The front cover plate is locked to the extension plate of the rear cover plate and the flange of the housing by screws.

2. The high-density guide rail type fiber optic distribution box according to claim 1, characterized in that: The housing is equipped with an optical fiber guiding channel, which consists of short protrusions spaced apart at the bottom of the housing. Fixing posts are provided on both sides of the channel to fix the optical fiber bundle.

3. The high-density guide rail type fiber optic distribution box according to claim 1, characterized in that: The front end of the enclosure is equipped with a cable management rack for arranging cables, and the front end of the cable management rack is equipped with a latch for securing the top cover of the cable management rack.

4. A high-density guide rail type fiber optic distribution box according to any one of claims 1 to 3, characterized in that: An optical fiber inlet is also provided on the side of the enclosure, and a fixing bracket is provided inside this inlet.

5. A high-density guide rail type fiber optic distribution box according to any one of claims 1 to 3, characterized in that: A bracket is provided on the side of the box. The bracket is an L-shaped angle iron with mounting holes at the protruding end for fixing the box.

6. A high-density DIN rail type fiber optic distribution box according to any one of claims 1 to 3, characterized in that: The fusion splice assembly is a multi-layer stacked type, with a minimum of four fusion splices stacked together, and each fusion splice provides wiring for 24 cores.

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