Universal optical cable closure inner container
By designing a multi-functional installation area and component adjustment structure, the compatibility and flexibility issues of the inner liner of the optical cable junction box were resolved, improving equipment installation efficiency and optical signal quality, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ZHONGKAI TELECOMM EQUIP
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-29
AI Technical Summary
The existing fiber optic junction box inner liner is incompatible with different types of optical communication equipment, the fiber optic cable fixing method is limited, and the excess fiber coiling area lacks adjustability, resulting in low equipment installation efficiency, high operating costs, and poor optical signal transmission quality.
Design a universal optical cable junction box inner liner, which includes a multi-functional installation area, supports flexible installation of plug-in splitters and excess fiber winding devices, enables rapid component installation through the cooperation of sliders and grooves, prevents detachment by elastic anti-detachment strips, adjusts the height of the fiber winding column by V-shaped springs, and has waist-shaped holes to adapt to different box specifications.
It realizes the versatility and flexibility of optical cable junction boxes, improves equipment installation efficiency, reduces operating costs, and ensures stable optical signal transmission and convenient equipment maintenance.
Smart Images

Figure CN224303897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of optical cable junction boxes, specifically a general-purpose optical cable junction box inner liner. Background Technology
[0002] In modern communication network construction, the optical cable junction box, as a key device connecting trunk optical cables and distribution optical cables, directly affects the efficiency of optical cable splicing, distribution, and the installation and maintenance of optical communication equipment due to its internal structure. Existing optical cable junction box interiors are typically designed for specific types of optical communication equipment, resulting in the following problems: First, fixed functional zones make it difficult to accommodate the installation of different types of equipment such as plug-in splitters and box-type splitters; second, the optical cable fixing method is singular, unable to be flexibly adjusted according to the actual number and specifications of optical cables connected; third, the lack of adjustability in the excess fiber coiling area easily leads to messy excess fiber entanglement, affecting the quality of optical signal transmission and the convenience of equipment maintenance. To meet the diverse needs of communication engineering, there is an urgent need for a universal and flexible optical cable junction box interior to improve equipment installation efficiency and reduce operating costs. Therefore, a universal optical cable junction box interior is proposed. Utility Model Content
[0003] The purpose of this utility model is to provide a universal optical cable junction box liner in order to solve the above problems.
[0004] To achieve the above objectives, the following technical solution is provided: a universal optical cable junction box inner liner, comprising an inner liner body installed inside the box, the inner liner body comprising several connecting pieces symmetrically installed on the side walls of the box, horizontal bars connected to the connecting pieces on both sides and installed in a mirror image, a left support plate and a right support plate installed on the horizontal bars for installing a fusion splicing tray, the left support plate and the right support plate constituting a fusion splicing installation area, characterized in that: it further comprises a multi-functional installation area installed on the inner liner body; a combined optical cable fixing area installed below the inner liner body, the optical cable fixing area comprising two connecting pieces symmetrically installed on the side walls of the box, several horizontal connecting rods connected to the two connecting pieces through insulating terminals, and several optical cable fixing plates slidably connected to the connecting rods; the multi-functional installation area comprises a plug-in type splitter mounting frame or a fiber coiling device installed on the horizontal bars.
[0005] Preferably, a direct-fusion frame or a box-type splitter mounting frame is also installed on the optical cable fixing area.
[0006] Preferably, the connecting rod is provided with a sliding groove that runs through its entire length; the optical cable fixing plate, the direct fusion frame, and the box-type splitter mounting frame are provided with sliders that cooperate with the sliding groove.
[0007] Preferably, the groove is provided with an elastic anti-detachment strip.
[0008] Preferably, the excess fiber winding device includes an excess fiber winding plate mounted on a crossbar and several retractable winding columns mounted on the excess fiber winding plate.
[0009] Preferably, the fiber winding column includes a fixed base connected to the excess fiber winding board, a telescopic column sleeved in the fixed base, and a baffle connected to the telescopic column.
[0010] Preferably, the telescopic column is provided with a V-shaped spring tab on its outer side.
[0011] Preferably, the telescopic column is provided with a V-shaped spring tab on its outer side.
[0012] Preferably, the connecting piece one and the connecting piece two are provided with a plurality of waist-shaped holes.
[0013] The beneficial effects of this utility model are as follows: By setting up a multi-functional installation area, it is possible to flexibly choose to install a plug-in type splitter mounting frame or a fiber optic coiling device. When a plug-in type splitter mounting frame is installed, the optical cable junction box is a plug-in type optical cable junction box. When a fiber optic coiling device is installed, the optical cable junction box is a traditional type optical cable junction box or a box-type optical cable junction box, which meets the fiber optic deployment needs in different scenarios, increases the versatility of the inner body, and allows for different models to be implemented by simply changing the multi-functional installation area of the same inner body; it also facilitates the storage and management of spare parts.
[0014] The slider and the slide groove work together to enable quick sliding installation and position adjustment of each component, making the installation process simple and convenient. The elastic anti-detachment strip effectively prevents the slider from accidentally falling out of the slide groove, ensuring the stability and reliability of each functional component after installation.
[0015] By using V-shaped spring clips and positioning holes, the telescopic column can be fixed at different heights, enabling precise adjustment of the fiber winding column height, increasing the capacity of excess fiber winding, standardizing the excess fiber winding method, ensuring that the fiber bending radius meets the standard, reducing signal loss, and improving the stability of fiber optic communication; the baffle is used to limit the winding range of excess fiber and prevent excess fiber from loosening and slipping.
[0016] The waist-shaped holes allow for fine-tuning of the positions of connecting piece one and connecting piece two on the side wall of the cabinet, enabling the inner liner to better adapt to cabinets of different sizes and further enhancing the versatility of the inner liner. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;
[0019] Figure 3This is a schematic diagram of the overall structure of Embodiment 3 of this utility model;
[0020] Figure 4 This is a schematic diagram of the connecting rod structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the optical cable fixing plate structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the direct-fuse frame structure of this utility model;
[0023] Figure 7 This is a schematic diagram of the box-type splitter structure of this utility model;
[0024] Figure 8 This is a cross-sectional view of the fiber-wound column of this utility model;
[0025] Figure 9 This is a schematic diagram of the connecting piece structure of this utility model;
[0026] Figure 10 This is a schematic diagram of the connecting piece 2 of this utility model.
[0027] Legend: 1. Inner liner body; 11. Connecting piece one; 111. Waist-shaped hole; 12. Horizontal bar; 13. Left support plate; 14. Right support plate; 2. Fusion splicing installation area; 3. Insert-type splitter mounting frame; 4. Excess fiber winding device; 41. Excess fiber winding plate; 42. Winding column; 421. Fixed base; 4211. Positioning hole; 422. Telescopic column; 423. Baffle; 424. V-shaped spring; 5. Optical cable fixing area; 51. Connecting piece two; 52. Connecting rod; 521. Slide groove; 522. Elastic anti-detachment strip; 53. Optical cable fixing plate; 531. Slider; 54. Direct fusion frame; 55. Box-type splitter mounting frame. Detailed Implementation
[0028] The following description, in conjunction with the accompanying drawings, further illustrates the universal optical cable junction box liner of this utility model.
[0029] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Participation Figure 1-3 As shown, this embodiment of a general-purpose optical cable junction box inner liner includes an inner liner body 1 installed inside the box. The inner liner body 1 includes several connecting pieces 11 symmetrically installed on the side walls of the box, horizontal bars 12 connected to the connecting pieces 11 on both sides and installed in a mirror image, a left support plate 13 and a right support plate 14 installed on the horizontal bars 12 for installing a fusion splicing tray, the left support plate 13 and the right support plate 14 forming a fusion splicing installation area 2. The feature is that it also includes a multi-functional installation area installed on the inner liner body 1; and a combined optical cable fixing area 5 installed below the inner liner body 1. The optical cable fixing area 5 includes two connecting pieces 51 symmetrically installed on the side walls of the box, several horizontal connecting rods 52 connected to the two connecting pieces 51 through insulating terminals, and sliding connections with the connecting rods 52. The system includes several optical cable fixing plates 53; the multi-functional installation area includes a plug-in splitter mounting frame 3 or a fiber optic coiling device 4 installed on the crossbar 12; the connection is made through insulating terminals, ensuring electrical insulation performance while achieving stable installation of the connecting rod 52; the multi-functional installation area allows for flexible selection of the plug-in splitter mounting frame 3 or the fiber optic coiling device 4. When the plug-in splitter mounting frame 3 is installed, the optical cable junction box is a plug-in optical cable junction box; when the fiber optic coiling device 4 is installed, the optical cable junction box is a traditional optical cable junction box or a box-type optical cable junction box, meeting the fiber optic deployment needs in different scenarios, increasing the versatility of the inner body 1, and allowing different models to be implemented by simply changing the multi-functional installation area of the same inner body 1; it also facilitates the storage and management of spare parts.
[0032] Participation Figure 1-3 As shown, the optical cable fixing area 5 is also equipped with a direct fusion frame 54 or a box-type splitter mounting frame 55; users can freely combine and install the optical cable fixing plate 53, direct fusion frame 54 or box-type splitter mounting frame 55 according to specific communication engineering needs, which greatly improves the versatility of the inner tube.
[0033] Example 1: The inner liner of a traditional optical cable junction box consists of a fusion splicing installation area 2, a fiber optic coiling device 4, and an optical cable fixing area 5; and the optical cable fixing area 5 is composed of several optical cable fixing plates 53 and a direct fusion frame 54.
[0034] Example 2: The inner liner of the plug-in type optical cable junction box consists of a fusion splicing installation area 2, a plug-in type splitter installation frame 3, and an optical cable fixing area 5; and the optical cable fixing area 5 is composed of several optical cable fixing plates 53.
[0035] Example 3: The inner liner of the box-type optical cable junction box consists of a fusion splicing installation area 2, a fiber optic coiling device 4, and an optical cable fixing area 5; and the optical cable fixing area 5 is composed of several optical cable fixing plates 53 and a box-type splitter mounting frame 55.
[0036] Participation Figure 4-7 As shown, the connecting rod 52 is provided with a sliding groove 521 that runs through its entire length; the optical cable fixing plate 53, the direct fusion frame 54, and the box-type splitter mounting frame 55 are provided with sliders 531 that cooperate with the sliding groove 521; the sliding groove 521 is provided with an elastic anti-detachment strip 522; through the cooperation of the slider 531 and the sliding groove 521, the rapid sliding installation and position adjustment of each component can be realized, and the installation process is simple and convenient; the setting of the elastic anti-detachment strip 522 can effectively prevent the slider 531 from accidentally falling out of the sliding groove 521, ensuring the stability and reliability of each functional component after installation.
[0037] Participation Figure 3 , 8 As shown, the excess fiber winding device 4 includes an excess fiber winding plate 41 mounted on a crossbar 12 and several retractable winding columns 42 mounted on the excess fiber winding plate 41. Each winding column 42 includes a fixed base 421 connected to the excess fiber winding plate 41, a telescopic column 422 sleeved within the fixed base 421, and a baffle 423 connected to the telescopic column 422. A V-shaped spring sheet 424 is provided on the outer side of the telescopic column 422. The fixed base 421 has several vertically arranged positioning holes 4211 that fit the V-shaped spring sheet 424. When the telescopic column 422 is pulled outwards, the V-shaped spring sheet 424... The spring piece 424 slides along the inner wall of the fixed base 421. When it slides to the positioning hole 4211, the V-shaped spring piece 424 on the telescopic column 422 is engaged in the positioning hole 4211 and fixed. Through the cooperation of the V-shaped spring piece 424 and the positioning hole 4211, the telescopic column 422 can be fixed at different height positions, so as to achieve precise adjustment of the height of the fiber winding column 42, increase the capacity of the excess fiber winding, standardize the excess fiber winding method, ensure that the bending radius of the optical fiber meets the standard, reduce signal loss, and improve the stability of optical fiber communication. The baffle 423 is used to limit the winding range of the excess fiber and prevent the excess fiber from loosening and slipping.
[0038] Participation Figure 9-10 As shown, the connecting piece 11 and the connecting piece 51 are provided with a plurality of waist-shaped holes 111; by setting the waist-shaped holes 111, the position of the connecting piece 11 and the connecting piece 51 on the side wall of the box can be finely adjusted, so that the inner liner body 1 can better adapt to boxes of different specifications, further enhancing the versatility of the inner liner.
[0039] The left support plate 13 and the right support plate 14 are provided with guide rails that are slidably connected to the melting and dispensing plate, the insert-type splitter mounting frame 3 is provided with guide rails that are slidably connected to the insert-type splitter, and the direct melting frame 54 is also provided with guide rails that are slidably connected to the direct melting plate.
[0040] The connecting piece 11, connecting piece 2 51, crossbar 12, left support plate 13, right support plate 14, connecting rod 52, excess fiber coil plate 321, insert-type splitter mounting frame 3, direct fusion frame 54, and optical cable fixing plate 53 are sheet metal bent parts; the box-type splitter mounting frame 55 is a sheet metal bent part or a plastic part.
[0041] In use, the connecting piece 11 is first symmetrically fixed to the predetermined position on the side wall of the box using bolts through the waist-shaped hole 111. Due to the presence of the waist-shaped hole 111, the position of the connecting piece 11 can be finely adjusted to accommodate more different models of boxes. Then, the two ends of the two horizontal blocks 12 are connected and fixed to the connecting pieces 11 on both sides with bolts. The two horizontal blocks 12 are installed vertically and horizontally with the connecting piece 11 to form a stable frame foundation. Then, the left support plate 13 and the right support plate 14 are vertically installed on the two horizontal blocks 12 with bolts. One end of the left support plate 13 and the right support plate 14 is connected to one horizontal block 12, and the other end is connected to the other horizontal block 12, thus completing the assembly of the melting and dispensing installation area 2. The distance between the left support plate 13 and the right support plate 14 matches the width of the melting and dispensing plate, and the melting and dispensing plate is slidably connected to the guide rails installed on the left support plate 13 and the right support plate 14.
[0042] Using the oblong holes 111 on the second connecting piece 51, the second connecting piece 51 is symmetrically installed below the fusion splice tray mounting area 2 on the side wall of the enclosure. The installation position can also be finely adjusted using the oblong holes 111. Then, the two ends of a connecting rod 52 are fixed to the second connecting piece 51 with bolts through insulating terminals. Next, according to the actual number of optical cables connected and the layout requirements, the optical cable fixing plate 53 with slider 531, or a combination of the optical cable fixing plate 53 and the direct fusion frame 54, or a combination of the optical cable fixing plate 53 and the box-type splitter mounting frame 55, is inserted into the groove 521 of the connecting rod 52 and slid to the corresponding position. The slider 531 is then engaged in the groove 521. Simultaneously, the elastic anti-disengagement strip 522 prevents the components from accidentally sliding out. Then, the groove 521 on the other connecting rod 52 is aligned and engaged with the sliders on the optical cable fixing plate 53, the direct fusion frame 54, and the box-type splitter mounting frame 55. 531, then connect the two ends of the connecting rod 52 to the connecting pieces 51 on both sides through insulating terminals with bolts. The distance between the two connecting rods 52 matches the distance between the sliders 531 on the optical cable fixing plate 53, the direct fusion frame 54 and the box-type splitter mounting frame 55. The positions of the optical cable fixing plate 53, the direct fusion frame 54 and the box-type splitter mounting frame 55 can be adjusted by sliding on the two connecting rods 52. After the installation of the functional components of the optical cable fixing area 5 is completed, when it is necessary to fix the optical cable, place the optical cable in the corresponding fixing slot of the optical cable fixing plate 53 and fix it by means of buckles or cable ties. The direct fusion plate is installed in the direct fusion frame 54 along the guide rail. The capacity of the direct fusion frame 54 can be customized according to user needs. Generally, it can hold 12 direct fusion plates. The box-type splitter can be placed in the box-type splitter mounting frame 55, and the excess fiber of the box-type splitter can be coiled on the excess fiber coiling device 4.
[0043] When a plug-in type splitter is required, the plug-in type splitter mounting frame 3 is installed in the multi-functional installation area and connected to the horizontal bars 12 installed on the connecting piece 11 above and below by bolts. If the optical cable junction box is a traditional type optical cable junction box or a box-type optical cable junction box, the excess fiber of the box-type splitter and the excess fiber of the jumper connected to the fusion splice tray can be replaced by replacing the plug-in type splitter mounting frame 3 with the excess fiber coiling device 4. For the excess fiber coiling device 4, the telescopic column 422 can be pulled along the fixed length according to the excess fiber length or the excess fiber coiling amount. The inner wall of the base 421 slides, allowing the V-shaped spring 424 to engage with the corresponding positioning hole 4211 for fixation. If height adjustment is required, manually push the end of the V-shaped spring 424 engaged in the positioning hole 4211 towards the inside of the fixed base 421, so that the end of the V-shaped spring 424 disengages from the positioning hole 4211. Then, the telescopic column 422 can be pulled and pressed to adjust the fiber winding column 42 to a suitable position. Then, the excess fiber is coiled orderly on the fiber winding column 42, and the baffle 423 is used to prevent the excess fiber from slipping, ensuring that the excess fiber is coiled neatly and meets the bending radius requirements for optical signal transmission.
[0044] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A universal optical cable junction box inner liner, comprising an inner liner body (1) installed inside the box, wherein the inner liner body (1) comprises several connecting pieces (11) symmetrically installed on the side walls of the box, horizontal bars (12) connected to the connecting pieces (11) on both sides and installed in a mirror image, a left support plate (13) and a right support plate (14) installed on the horizontal bars (12) for installing a fusion splicing tray, wherein the left support plate (13) and the right support plate (14) constitute a fusion splicing installation area (2), characterized in that: It also includes a multi-functional installation area installed on the inner body (1); a combined optical cable fixing area (5) installed below the inner body (1), wherein the optical cable fixing area (5) includes two connecting pieces (51) symmetrically installed on the side wall of the box, several horizontal connecting rods (52) connected to the two connecting pieces (51) through insulating terminals, and several optical cable fixing plates (53) slidably connected to the connecting rods (52); the multi-functional installation area includes a plug-in type splitter mounting frame (3) or a fiber coiling device (4) installed on the crossbar (12).
2. The universal optical cable junction box liner according to claim 1, characterized in that: The optical cable fixing area (5) is also equipped with a direct fusion frame (54) or a box-type splitter mounting frame (55).
3. The universal optical cable junction box liner according to claim 2, characterized in that: The connecting rod (52) is provided with a sliding groove (521) that runs through the entire length; the optical cable fixing plate (53), the direct fusion frame (54), and the box-type splitter mounting frame (55) are provided with sliders (531) that cooperate with the sliding groove (521).
4. The universal optical cable junction box liner according to claim 3, characterized in that: The groove (521) is provided with an elastic anti-detachment strip (522).
5. The universal optical cable junction box liner according to claim 1, characterized in that: The excess fiber winding device (4) includes an excess fiber winding plate (41) installed on a crossbar (12) and several retractable winding columns (42) installed on the excess fiber winding plate (41).
6. The universal optical cable junction box liner according to claim 5, characterized in that: The fiber winding column (42) includes a fixed base (421) connected to the excess fiber winding plate (41), a telescopic column (422) sleeved in the fixed base (421), and a baffle (423) connected to the telescopic column (422).
7. The universal optical cable junction box liner according to claim 6, characterized in that: The telescopic column (422) is provided with a V-shaped spring sheet (424) on the outside.
8. The universal optical cable junction box liner according to claim 7, characterized in that: The fixed base (421) is provided with a number of positioning holes (4211) arranged vertically and adapted to the V-shaped spring sheet (424).
9. The universal optical cable junction box liner according to claim 1, characterized in that: The connecting piece one (11) and the connecting piece two (51) are provided with a plurality of waist-shaped holes (111).