Split modular optical cross-connect chassis
By designing a modular optical distribution box base, and using bottom module assembly and positioning rod reinforcement, the problem of low construction efficiency of existing optical distribution box bases is solved, achieving rapid installation and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HONGYI PHOTOELECTRIC TECH
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-19
AI Technical Summary
The existing construction methods for optical distribution box bases require a large operating space, take a long time, affect construction efficiency, and are costly, making them difficult to adapt to complex scenarios.
The optical distribution box base adopts a split modular structure, which is composed of two bottom modules that are combined to form the main body of the base. The modules are connected by positioning rods and bolts, allowing for quick on-site installation. Positioning rods are also installed at the bottom of the bottom modules for reinforcement and to improve stability.
It enables rapid construction, reduces construction difficulty, facilitates modular transportation, adapts to complex scenarios, and improves the stability and waterproofness of the optical distribution box.
Smart Images

Figure CN224383518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical distribution box base technology, and more specifically to a modular optical distribution box base. Background Technology
[0002] An optical fiber distribution box (OFC) is a junction device that provides termination and patching for backbone and distribution layer optical cables. After the optical cable enters the OFC, it is fixed, terminated, and distributed. Patch cables are then used to connect the backbone and distribution layer optical cables. The OFC is primarily used as an interface device at the junction of backbone and distribution optical cables in an optical access network. The structure of an OFC mainly consists of a box body, internal hardware, fiber optic connectors, and spare parts. Depending on the application, it can be divided into indoor and outdoor types, and can be floor-mounted, overhead, or wall-mounted. When floor-mounted, the OFC is typically fixed to a concrete base.
[0003] For example, in the prior art disclosure CN218099725U, a base for an optical cable junction box is described. During use, the front plate and side plate are first connected into a cuboid shape by the mutual cooperation of protrusion one and groove two on their sides. A fixing plate is provided at the connection point of the groove and protrusion, and the groove, protrusion, and fixing plate are fixed by screws. The screws connect and fix the two plates of the front and side plates. When the base needs to be expanded, the screws and fixing plate at the expansion point are removed, a new front plate is connected to the side of the original front and side plates, and then the fixing plate is placed at the cooperation point of the groove and protrusion, completing the base expansion.
[0004] The existing construction method for optical distribution box bases involves digging a pit first and then pouring concrete. This process is time-consuming and requires a large operating space, resulting in excessive damage to the road surface. This not only affects traffic flow but also reduces construction efficiency, making the operation difficult and labor costs high. Therefore, this invention provides a modular optical distribution box base with high construction efficiency. Utility Model Content
[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a modular optical distribution box base. The base body is composed of two bottom modules, and the modular structure allows for rapid on-site installation, reducing construction difficulty. It also facilitates separate transportation and adapts to complex scenarios. Furthermore, positioning rods are installed at the bottom of the bottom modules for reinforcement, thereby improving the stability of the bottom modules and thus enhancing the stability of the optical distribution box in use, thus solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular optical distribution box base, comprising a base body, the base body comprising two symmetrically distributed bottom modules, each bottom module having a mounting groove for placing the optical distribution box on its top, a connecting groove and a wiring port on the bottom of the mounting groove, rubber sealing strips affixed to the inner walls of both mounting grooves, the two bottom modules being detachably fixed together by a first bolt and a nut, and two first bolts and nuts being provided, the inner wall surface of the two wiring ports on the side closest to each other having the same number of fixing holes as the first bolts and nuts.
[0007] In a preferred embodiment, each bottom module is fixed with a plurality of evenly distributed positioning rods at its bottom, and each bottom module has a positioning hole corresponding to the positioning rod at its top. The positioning rods and positioning holes cooperate to improve the stability between the upper and lower bottom modules.
[0008] In a preferred embodiment, each of the two bottom modules has a mounting hole corresponding to a positioning rod on the side away from each other. A second bolt is provided inside the mounting hole. Multiple positioning rods located at the bottom edge of the bottom module have threaded holes adapted to the second bolt. When stacking the bottom modules, the second bolt is screwed into the threaded hole, thereby improving the connection between the upper and lower bottom modules.
[0009] In a preferred embodiment, each bottom module has grooves on both the front and rear sides of its top, the grooves being located between two positioning holes, and each groove having a handle inside, which facilitates the handling and installation of the bottom module.
[0010] In a preferred embodiment, two limiting holes are provided at the bottom of the groove, and two limiting rods are fixedly provided at the bottom of each handle. The limiting rods are configured with an inverted T-shaped cross section and are located inside the limiting holes. Under the limiting action of the limiting rods and limiting holes, the handles will not come out of the groove, thereby facilitating the use of the handles to move the bottom module.
[0011] In a preferred embodiment, the outer wall surface of the bottom module, the surface of the connecting groove, and the surface of the wiring port are all coated with waterproof paint, which can effectively improve the waterproofness of the base body.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] This utility model uses two bottom modules to form the main body of the base, adopting a modular structure that allows for rapid on-site installation, reduces construction difficulty, facilitates separate transportation, and adapts to complex scenarios. Furthermore, positioning rods are installed at the bottom of the bottom modules for reinforcement, thereby improving the stability of the bottom modules and thus enhancing the operational stability of the optical distribution box.
[0014] By setting positioning holes on the top of the bottom module corresponding to the positioning rod, it is easy for workers to quickly stack and place the bottom modules, thereby increasing the height of the optical distribution box. The second bolt is used to connect with the threaded hole on the positioning rod for reinforcement, improving the connection between the upper and lower bottom modules. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a perspective view of the base module of this utility model;
[0017] Figure 3 This is a side view of the bottom module of this utility model;
[0018] Figure 4 This is a cross-sectional view of the bottom module of this utility model;
[0019] Figure 5 This is a schematic diagram of two base bodies stacked together.
[0020] The attached diagram is labeled as follows: 1. Base body; 2. Bottom module; 3. Mounting groove; 4. Connecting groove; 5. Wiring port; 6. Rubber sealing strip; 7. First bolt; 8. Nut; 9. Fixing hole; 10. Positioning rod; 11. Positioning hole; 12. Mounting hole; 13. Second bolt; 14. Threaded hole; 15. Groove; 16. Handle; 17. Limiting hole; 18. Limiting rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Refer to the instruction manual appendix Figures 1-5 This utility model provides a modular optical distribution box base, including a base body 1. The base body 1 includes two symmetrically distributed bottom modules 2. The top of each bottom module 2 is provided with an installation groove 3 for placing the optical distribution box. The bottom of the installation groove 3 is provided with a connecting groove 4 and a wiring port 5. The outer wall surface of the bottom module 2, the surface of the connecting groove 4, and the surface of the wiring port 5 are all coated with a waterproof coating, such as a polymer cement-based waterproof coating, which is composed of an emulsion synthesized from various water-based polymers and high-quality cement mixed with various additives. The flexibility of the polymer and the rigidity of the cement are combined into one, resulting in excellent impermeability and stability. Moreover, it is easy to construct, has a low overall cost, a short construction period, and is non-toxic and environmentally friendly. Therefore, it can effectively improve the waterproofness of the base body 1.
[0023] Both mounting slots 3 have rubber sealing strips 6 pasted on their inner walls. When the bottom of the optical distribution box is inserted into the mounting slot 3, the rubber sealing strips 6 are squeezed to fill the gap between the optical distribution box and the mounting slot 3, thereby preventing rainwater from flowing into the wiring port 5 from the gap between the optical distribution box and the mounting slot 3, thus playing a waterproof role. The two bottom modules 2 are detachably fixed by the first bolt 7 and nut 8, and there are two first bolts 7 and nuts 8. The inner wall surface of the two wiring ports 5 on the side closest to each other is provided with the same number of fixing holes 9 as the first bolts 7 and nuts 8.
[0024] Each bottom module 2 has multiple evenly distributed positioning rods 10 fixed at its bottom. Each bottom module 2 has a positioning hole 11 corresponding to the positioning rod 10 at its top. Two bottom modules 2 have mounting holes 12 corresponding to the positioning rod 10 on opposite sides. The mounting holes 12 are equipped with second bolts 13. Multiple positioning rods 10 located at the bottom edge of the bottom module 2 have threaded holes 14 that are compatible with the second bolts 13.
[0025] In actual use, the staff first places the two bottom modules 2 in the pre-dug pit. At this time, the staff can apply a certain pressure to the top of the bottom module 2 so that the multiple positioning rods 10 at the bottom of the bottom module 2 are inserted into the soil, preventing the bottom module 2 from moving in the horizontal direction and improving the stability of the bottom module 2. Then, the first bolt 7 is used to pass through the fixing hole 9 to fix the two bottom modules 2 to form the base body 1. Since the first bolt 7 is hidden inside the base body 1, it is difficult for the outside to directly contact it, thereby effectively reducing the probability of theft. After that, soil is filled into the pit to reinforce the bottom modules 2, and then the optical distribution box is installed. By setting a large-diameter wiring port 5, it is convenient for the staff to connect the cable to the components inside the optical distribution box. In addition, the connecting groove 4 between the two bottom modules 2 can be used for cable laying and wiring, making it more convenient to use.
[0026] In addition, staff can also stack the base body 1, such as Figure 5 As shown, the second bolt 13 is screwed into the threaded hole 14 on the positioning rod 10 to fix the positioning rod 10 and the bottom module 2 together, so that the height of the optical distribution box can be quickly adjusted and the construction difficulty is low.
[0027] Refer to the instruction manual appendix Figures 1-4 Each bottom module 2 has a groove 15 on both the front and back sides of its top. The groove 15 is located between two positioning holes 11. Each groove 15 has a handle 16 inside. The bottom of the groove 15 has two limiting holes 17. Each handle 16 has two limiting rods 18 fixedly installed at its bottom. The limiting rods 18 have an inverted T-shaped cross section and are located inside the limiting holes 17.
[0028] When the workers are installing the base body 1, they pull the handle 16 out of the groove 15. Under the restriction of the limiting rod 18 and the limiting hole 17, the handle 16 will not come out of the groove 15. Then the workers can grab the handle 16 and move it manually, or use a hoisting device to hook the handle 16 for hoisting. After the installation is completed, the handle 16 is pushed back into the groove 15 to avoid the handle 16 protruding outward and affecting the appearance.
[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular optical distribution box base, comprising a base body (1), characterized in that: The base body (1) includes two symmetrically distributed bottom modules (2). The top of each bottom module (2) is provided with a mounting groove (3) for placing an optical distribution box. The bottom of the mounting groove (3) is provided with a connecting groove (4) and a wiring port (5). The inner walls of the two mounting grooves (3) are covered with rubber sealing strips (6). The two bottom modules (2) are detachably fixed together by the first bolt (7) and nut (8), and there are two first bolts (7) and nuts (8). The inner wall surface of the two wiring ports (5) on the side close to each other is provided with the same number of fixing holes (9) as the first bolts (7) and nuts (8).
2. The modular optical distribution box base according to claim 1, characterized in that: Each bottom module (2) has multiple evenly distributed positioning rods (10) fixed at its bottom, and each bottom module (2) has a positioning hole (11) corresponding to the positioning rod (10) at its top.
3. A modular optical distribution box base according to claim 2, characterized in that: Two bottom modules (2) are provided with mounting holes (12) corresponding to the positioning rods (10) on the opposite side. The mounting holes (12) are provided with second bolts (13). Multiple positioning rods (10) located at the bottom edge of the bottom module (2) are provided with threaded holes (14) that are compatible with the second bolts (13).
4. A modular optical distribution box base according to claim 2, characterized in that: Each bottom module (2) has a groove (15) on both the front and back sides of the top. The groove (15) is located between two positioning holes (11). Each groove (15) has a handle (16) inside.
5. A modular optical distribution box base according to claim 4, characterized in that: The groove (15) has two limiting holes (17) at the bottom. Each handle (16) has two limiting rods (18) fixed at the bottom. The limiting rods (18) have an inverted T-shaped cross section and are located inside the limiting holes (17).
6. A modular optical distribution box base according to claim 1, characterized in that: The outer wall surface of the bottom module (2), the surface of the connecting groove (4) and the surface of the wiring port (5) are all coated with waterproof paint.