ODU subframe with compatibility

Abstract

The application belongs to the technical field of ODU and particularly relates to an ODU sub-frame with compatibility, comprising a sub-frame assembly and a tensioning assembly, the sub-frame assembly is used for fusion and distribution management of the fiber core of an optical cable and a first tail fiber, and the tensioning assembly is used for moderately tensioning the optical cable at the rear side of the sub-frame assembly. The fiber fusion disc assembly in the application can rotate by 180 degrees relative to the corresponding slide around the horizontal axis of the first rotating sleeve after being pulled out of the cabinet body, so that the maintenance personnel who maintain the two fiber fusion disc assemblies can simultaneously maintain the two fiber fusion disc assemblies on both sides of the two fiber fusion disc assemblies without interfering with each other, thereby improving the maintenance efficiency of the ODU sub-frame.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ODU, and particularly relates to an ODU sub-frame with compatibility. BACKGROUND

[0002] The ODU sub-frame is mainly used for fusion and distribution management of fiber cores and tail fibers of optical cables, is a modular independent unit related to optical cable connection network equipment, and can be integrated in an ODF distribution rack or other types of cabinets. Core functions of the ODU sub-frame include optical cable fixation, fusion of fiber cores and tail fibers of optical cables, redundant storage of tail fibers and optical cables, and jumper management, and support flexible network optical path allocation.

[0003] The ODU sub-frame is generally arranged in multiple layers up and down in an optical fiber distribution rack or a cabinet, and is provided with a fusion fiber tray. When the number of optical fibers is large, the number of layers of the ODU sub-frame in the distribution rack and the number in each layer are large, and the number of optical fibers on the fusion fiber tray in each ODU sub-frame is also large. When installing or maintaining the ODU sub-frame, a long time is required for installation and maintenance due to the large number of optical fibers, and the efficiency is low. If multiple people simultaneously maintain the ODU sub-frames in the distribution rack, the structure and layout of the ODU sub-frames do not allow multiple people to simultaneously maintain the ODU sub-frames in the distribution rack. Two adjacent or close ODU sub-frames in the same layer interfere with each other after being pulled out due to insufficient space, especially adjacent ODU sub-frames in the upper and lower layers interfere with each other after being pulled out, further prolonging the maintenance time of the ODU sub-frames and reducing the maintenance efficiency.

[0004] The application designs an ODU sub-frame with compatibility to allow two people to simultaneously maintain the ODU sub-frames to solve the above problems. SUMMARY

[0005] Based on this, it is necessary to provide an ODU sub-frame with compatibility in view of the problems existing in the current ODU sub-frame, the fiber fusion disc assembly in the present application can rotate 180 degrees around the horizontal axis of the first rotating sleeve relative to the corresponding sliding seat after being pulled out of the cabinet, so that the opening of the first fiber fusion disc in the fiber fusion disc assembly is opposite to the opening of the first fiber fusion disc in the adjacent or nearby fiber fusion disc assembly of the same layer which needs to be repaired, so that the maintenance personnel who maintain the two fiber fusion disc assemblies can simultaneously maintain them on both sides of the two fiber fusion disc assemblies without interfering with each other, improving the efficiency of ODU sub-frame maintenance. The fiber fusion disc assembly in the present application can swing 90 degrees around the vertical axis of the first round pin in the corresponding connecting assembly from right to left away from the right adjacent or nearby sub-frame assembly which needs to be repaired, so that the opening of the fiber fusion disc assembly faces outward from the cabinet to the maintainer, so that the two maintainers who maintain the two fiber fusion disc assemblies are respectively located on both sides of the right fiber fusion disc assembly and simultaneously maintain the two fiber fusion disc assemblies respectively, thereby effectively improving the maintenance efficiency of the ODU sub-frame. The limiting assembly in the sub-frame assembly of the present application for limiting the 180-degree rotation of the fiber fusion disc assembly can ensure that the fiber fusion disc assembly will automatically generate a 180-degree rotation after rotating in any direction around the first rotating sleeve axis, ensuring that the opening of the first fiber fusion disc in the rotating fiber fusion disc assembly is opposite to the opening of the first fiber fusion disc in the adjacent or nearby fiber fusion disc assembly which needs to be repaired, thereby facilitating two maintenance personnel to simultaneously maintain two fiber fusion disc assemblies.

[0006] The above object is achieved by the following technical scheme:

[0007] An ODU sub-frame with compatibility for fusion and distribution management of fiber cores and first tail fibers of optical cables, comprising:

[0008] A sub-frame assembly arranged in layers in the cabinet for fusion and distribution management of fiber cores and first tail fibers of optical cables, the sub-frame assembly comprising a sliding seat sliding between upper and lower partitions in the cabinet along the depth direction of the cabinet, the sliding seat being connected with a second rotating seat through a connecting assembly, the second rotating seat being rotatably provided with a first rotating sleeve having an axis parallel to the depth direction of the cabinet, the first rotating sleeve being connected with a limiting assembly which automatically limits the first rotating sleeve after rotating 180 degrees, and the front end of the first rotating sleeve being provided with a fiber fusion disc assembly for storing redundant optical cables and first tail fibers and fusing and fixing the fiber cores and first tail fibers of the optical cables.

[0009] A tensioning assembly arranged at the rear side of the cabinet for moderately tensioning the optical cables at the rear side of the sub-frame assembly.

[0010] In one of the embodiments, the upper and lower sides of the sliding seat are provided with T-shaped guide strips which slide in the T-shaped sliding grooves on the corresponding side partitions, the sliding seat is provided with a second limiting block which limits the sliding range of the sliding seat out of the cabinet by cooperating with the first limiting block on the partition, and the rear side of the sliding seat is provided with a cable passing hole which allows the optical cable to pass through.

[0011] In one of the embodiments, the connecting assembly comprises two first connecting rods which connect the second rotating seat and the sliding seat.

[0012] In one of the embodiments, the fiber fusion disc assembly comprises a first fiber fusion disc which is provided on the end of the first rotating sleeve and has an opening on one side, the front end of the first fiber fusion disc is provided with a plurality of sockets for inserting the first plugs on the end of the first tail fiber, the first plug is inserted and matched with the second plug on the end of the second tail fiber, the inner side wall of the first fiber fusion disc is provided with a first outer arc plate, a first inner arc plate, a second outer arc plate and a second inner arc plate, the first outer arc plate and the first inner arc plate form a first clamping groove with a circular arc shape, the second outer arc plate and the second inner arc plate form a second clamping groove with a circular arc radius and an arc degree which are equal to those of the first clamping groove, the first clamping groove and the second clamping groove are symmetrically distributed on both sides of the first rotating sleeve, the inner side wall of the first fiber fusion disc is provided with two groups of third clamping grooves and two groups of fourth clamping grooves, the two groups of third clamping grooves are respectively located at the two ends of the second clamping groove, the two groups of fourth clamping grooves are respectively located at the two ends of the first clamping groove, the rear end of the first fiber fusion disc is symmetrically provided with two fixed rods, the end of the two fixed rods is hingedly connected with a second fiber fusion disc which opens and closes the opening of the first fiber fusion disc, the inner side of the second fiber fusion disc is provided with a third outer arc plate, a third inner arc plate, a fourth outer arc plate and a fourth inner arc plate, the third outer arc plate and the third inner arc plate form a fifth clamping groove with a circular arc shape, the fifth clamping groove is opposite to the first clamping groove, the fourth outer arc plate and the fourth inner arc plate form a sixth clamping groove with a circular arc radius and an arc degree which are equal to those of the fifth clamping groove, the sixth clamping groove is opposite to the second clamping groove, and the inner side of the second fiber fusion disc is provided with three cable clamps which are distributed at a circumferential interval of 90 degrees and are used for winding the redundant optical cable.

[0013] In one of the embodiments, the fixed rod is hingedly connected with the lug on the inner side of the second fiber fusion disc through a fourth round pin, the two side ends of the second fiber fusion disc are symmetrically provided with two fifth round pins, the fourth rotating sleeve is rotatably provided on the fifth round pin, the fifth rotating sleeve is connected with the fifth rotating sleeve through a second spring, the fifth rotating sleeve is rotatably provided on the sixth round pin on the inner wall of the first fiber fusion disc, the second spring is respectively located on the two sides of the fifth round pin when the second fiber fusion disc opens and closes the first fiber fusion disc, and the inner side of the first fiber fusion disc is provided with two top columns which are symmetrically provided and limit the closing range of the second fiber fusion disc.

[0014] In one of the embodiments, the connecting assembly comprises two L-shaped second connecting rods symmetrically arranged at 180 degrees in the circumferential direction of the second rotating seat, the end of the second connecting rod is provided with a first round pin whose axis is eccentrically perpendicular to the axis of the second rotating seat and parallel to the fourth round pin, the first round pin is located on the side away from the opening of the first fusion fiber disc, and the first round pin rotates in the first rotating seat on the slide.

[0015] In one of the embodiments, the outer edge of the second inner arc plate is curved towards the second outer arc plate, the outer edge of the fourth inner arc plate is curved towards the fourth outer arc plate, and the outer edges of the first inner arc plate, the second outer arc plate, the third inner arc plate and the fourth outer arc plate are all provided with three evenly distributed elastic baffle plates.

[0016] In one of the embodiments, the limiting assembly comprises a first gear provided on the first rotating sleeve, the first gear is engaged with a second gear provided on the first connecting rod or the second connecting rod, the transmission ratio of the first gear and the second gear is 1:2, a second round pin is provided on the rim of the second gear, a second rotating sleeve is rotatably arranged on the second round pin, the second rotating sleeve is connected with a third rotating sleeve through a first spring, and the third rotating sleeve is rotatably arranged on a third round pin on the first connecting rod or the second connecting rod.

[0017] In one of the embodiments, the front end of the first fusion disc is provided with a support through a bolt, the support is provided with a third rotating seat coaxial with the first rotating sleeve, and a fiber guide sleeve for guiding all the second tail fibers downward is rotatably arranged in the third rotating seat.

[0018] In one of the embodiments, the tensioning assembly comprises a cable guide sleeve arranged on the rear side of the cabinet body and opposite to the cable hole on the rear side of the slide, and a swing rod hingedly connected to the rear side of the cabinet body, the upper end of the swing rod is arranged in a tensioning groove for forming a small curvature support for the optical cable, a leaf spring for allowing the swing rod to swing backward is connected between the swing rod and the cabinet body, the rear side of the cabinet body is provided with a limiting sleeve for limiting the swing amplitude of the swing rod and a clamping sleeve for fixing the downward part of the optical cable, and the optical cable sequentially passes through the tensioning groove, the cable guide sleeve and the first rotating sleeve, and is redundantly wound on the three cable clamps on the second fusion fiber disc.

[0019] The present application has the following advantages:

[0020] 1. The fusion fiber disc assembly in the present application can rotate by 180 degrees relative to the corresponding slide around the horizontal axis of the first rotating sleeve after being pulled out of the cabinet body, so that the opening of the first fusion fiber disc in the fusion fiber disc assembly is opposite to the opening of the first fusion fiber disc in the adjacent or nearby fusion fiber disc assembly of the same layer and needing to be repaired, so that the maintenance personnel can simultaneously perform maintenance operations on the two fusion fiber disc assemblies without interfering with each other, thereby improving the efficiency of ODU sub-frame maintenance.

[0021] 2、The fiber fuse disc assembly in the application can swing 90 degrees from right to left around the vertical axis of the first round pin in the corresponding connecting assembly away from the right side adjacent or nearby sub-frame assembly needing maintenance after being pulled out of the cabinet body, so that the opening of the fiber fuse disc assembly faces outward from the cabinet body to the maintainer, so that two maintainers who maintain two fiber fuse disc assemblies are respectively located on both sides of the right fiber fuse disc assembly and simultaneously maintain the two fiber fuse disc assemblies, thereby effectively improving the maintenance efficiency of the ODU sub-frame.

[0022] 3、The limiting assembly for limiting the 180-degree rotation of the fiber fuse disc assembly in the sub-frame assembly of the application can ensure that the fiber fuse disc assembly will automatically generate a 180-degree rotation after rotating in any direction around the first rotating sleeve axis, and ensure that the opening of the first fiber fuse disc in the rotating fiber fuse disc assembly is opposite to the opening of the first fiber fuse disc in the adjacent or nearby fiber fuse disc assembly needing maintenance, thereby facilitating two maintainers to simultaneously maintain two fiber fuse disc assemblies. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of two perspectives of the application;

[0024] Figure 2 is a bottom view of the application;

[0025] Figure 3 is a side view of the application;

[0026] Figure 4 is a view of the cooperation between the sub-frame assembly and the tensioning assembly in the application;

[0027] Figure 5 is a schematic view of the cabinet structure;

[0028] Figure 6 is a schematic view of the partition structure;

[0029] Figure 7 is a schematic view of the sub-frame assembly;

[0030] Figure 8 is a schematic view of the optical cable winding state on the second fiber fuse disc in the sub-frame assembly;

[0031] Figure 9 is a schematic view of the fiber core and first tail fiber winding state of the optical cable on the first fiber fuse disc in the sub-frame assembly;

[0032] Figure 10 is a structural view of both ends of the first spring;

[0033] Figure 11 is a structural view of the fusion end of the fiber core and the first tail fiber of the optical cable;

[0034] Figure 12is a cross-sectional view of the transition of the fiber core of the second fusion fiber disc to the first fusion fiber disc;

[0035] Figure 13 is a schematic view of the second fusion fiber disc opening relative to the first fusion fiber disc in the fusion fiber disc assembly;

[0036] Figure 14 is a schematic view of the second spring when the second fusion fiber disc is closing and opening relative to the first fusion fiber disc;

[0037] Figure 15 is a structural cross-sectional view of both ends of the second spring;

[0038] Figure 16 is a cross-sectional view of the two scheme connecting assemblies;

[0039] Figure 17 is a cross-sectional view of the fusion fiber disc assembly swinging 90 degrees relative to the corresponding slide after being pulled out of the cabinet body;

[0040] Figure 18 is a structural schematic view of the first fusion fiber disc in the fusion fiber disc assembly;

[0041] Figure 19 is a structural schematic view of the second fusion fiber disc in the fusion fiber disc assembly;

[0042] Figure label name:

[0043] 101, cabinet body; 102, cabinet door; 103, partition; 104, sliding groove; 105, first limiting block; 106, optical cable; 107, fiber core; 108, first plug; 109, first tail fiber; 110, second plug; 111, second tail fiber; 112, sheath; 113, steel needle;

[0044] 200, sub-frame assembly; 201, sliding seat; 202, cable passing hole; 203, guide strip; 204, second limiting block; 205, connecting assembly; 206, first connecting rod; 207, second connecting rod; 208, first round pin; 209, first rotating seat; 210, second rotating seat; 211, first rotating sleeve; 212, first gear; 213, second gear; 214, second round pin; 215, second rotating sleeve; 216, first spring; 217, third rotating sleeve; 218, third round pin; 219, fiber melting disc assembly; 220, first fiber melting disc; 221, top column; 222, first outer arc plate; 223, first inner arc plate; 224, baffle; 225, first clamping groove; 226, second outer arc plate; 228, second inner arc plate; 229, second clamping groove; 230, third clamping groove; 231, fourth clamping groove; 232, socket; 233, fixed rod; 234, fourth round pin; 235, second fiber melting disc; 236, supporting lug; 237, fifth round pin; 238, fourth rotating sleeve; 239, second spring; 240, fifth rotating sleeve; 241, sixth round pin; 242, cable clamp; 243, third outer arc plate; 244, third inner arc plate; 245, fifth clamping groove; 246, fourth outer arc plate; 247, fourth inner arc plate; 248, sixth clamping groove; 249, bracket; 250, third rotating seat; 251, fiber guide sleeve; 252, limiting assembly;

[0045] 300, tensioning assembly; 301, cable guide sleeve; 302, swing lever; 303, limiting sleeve; 304, plate spring; 305, tensioning groove; 306, clamping sleeve. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0047] The serial numbers of the components in the present application, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in terms of indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just means that the first feature is horizontally lower than the second feature.

[0049] As shown in Figures 1-19 , an ODU sub-frame with compatibility is used for fusion and distribution management of the fiber core 107 of the optical cable 106 and the first tail fiber 109, which includes:

[0050] The sub-frame assembly 200 is arranged in the cabinet 101 in layers, and is used for fusion and distribution management of the fiber core 107 of the optical cable 106 and the first tail fiber 109. The sub-frame assembly 200 includes a sliding seat 201 sliding between the upper and lower partitions 103 in the depth direction of the cabinet 101. The sliding seat 201 is connected with a second rotating seat 210 through a connecting assembly 205. The second rotating seat 210 is rotatably arranged with a first rotating sleeve 211 with an axis parallel to the depth direction of the cabinet 101. The first rotating sleeve 211 is connected with the connecting assembly 205 through a limiting assembly 252 which automatically limits the first rotating sleeve 211 after rotating 180 degrees. The front end of the first rotating sleeve 211 is provided with a fusion fiber disc assembly 219 for storing the redundant amount of the optical cable 106 and the first tail fiber 109 and fusing and fixing the fiber core 107 of the optical cable 106 and the first tail fiber 109.

[0051] The tensioning assembly 300 is arranged at the rear side of the cabinet 101 and is used for moderately tensioning the optical cable 106 at the rear side of the sub-frame assembly 200.

[0052] In further embodiments, as shown in Figure 6 , Figure 7 The upper and lower sides of the sliding seat 201 are provided with guide bars 203 with a T-shaped cross section. The guide bars 203 slide in the T-shaped sliding grooves 104 on the corresponding side partitions 103. The sliding seat 201 is provided with a second limiting block 204 which limits the sliding of the sliding seat 201 out of the cabinet 101 by cooperating with the first limiting block 105 on the partition 103. The rear side of the sliding seat 201 is provided with a cable passing hole 202 allowing the optical cable 106 to pass through.

[0053] In further embodiments, as shown in Figure 16 The connecting assembly 205 includes two first connecting rods 206 which fixedly connect the second rotating seat 210 with the sliding seat 201.

[0054] In a further embodiment, such as Figure 7 , Figure 8 , Figure 9 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 17 , Figure 18 , Figure 19 As shown, the fiber fusion splice assembly 219 includes a first fiber fusion splice 220 disposed at the end of the first rotating sleeve 211 and open on one side. The front end of the first fiber fusion splice 220 is provided with a plurality of sockets 232 for inserting the first plug 108 at the end of the first pigtail 109. The first plug 108 is inserted into and cooperates with the second plug 110 at the end of the second pigtail 111. The inner sidewall of the first fiber fusion splice 220 is provided with a first outer arc plate 222, a first inner arc plate 223, a second outer arc plate 226, and a second inner arc plate 227. The inner arc plate 228, the first outer arc plate 222 and the first inner arc plate 223 form an arc-shaped first slot 225, the second outer arc plate 226 and the second inner arc plate 228 form a second slot 229 with an arc radius and arc equal to the first slot 225, the first slot 225 and the second slot 229 are symmetrically distributed on both sides of the first rotating sleeve 211, and the inner sidewall of the first fiber melting tray 220 is provided with two sets of third slots 230 and two sets of fourth slots 231, the two sets of third slots 230... 30 are located at both ends of the second slot 229, and the two sets of fourth slots 231 are located at both ends of the first slot 225. Two fixing rods 233 are symmetrically arranged at the rear end of the first fiber fusion tray 220. The ends of the two fixing rods 233 are hinged to a second fiber fusion tray 235 that controls the opening of the first fiber fusion tray 220. A third outer arc plate 243, a third inner arc plate 244, a fourth outer arc plate 246, and a fourth inner arc plate 247 are arranged on the inner surface of the second fiber fusion tray 235. The third outer arc plate 243 and the third inner arc plate 244 form an arc-shaped fifth slot 245, which is opposite to the first slot 225. The fourth outer arc plate 246 and the fourth inner arc plate 247 form a sixth slot 248 with the same arc radius and arc as the fifth slot 245, which is opposite to the second slot 229. The inner side of the second fiber splicing tray 235 is provided with three cable clips 242 that are distributed at 90-degree intervals in the circumference and are used to wrap the redundant optical cable 106.

[0055] In a further embodiment, such as Figure 15 , Figure 18 , Figure 19As shown, the fixed rod 233 is hinged with the fourth round pin 234 and the supporting lug 236 on the inner side of the second fusing disc 235, two fifth round pins 237 are symmetrically arranged on the two side ends of the second fusing disc 235, the fourth rotating sleeve 238 is rotatably arranged on the fifth round pin 237, the fifth rotating sleeve 240 is connected with the second spring 239, the fifth rotating sleeve 240 is rotatably arranged on the sixth round pin 241 on the inner wall of the first fusing disc 220, the second spring 239 is respectively arranged on the two sides of the fifth round pin 237 when the second fusing disc 235 opens and closes the first fusing disc 220, the inner side of the first fusing disc 220 is provided with two top columns 221 symmetrically arranged to limit the closing range of the second fusing disc 235.

[0056] In further embodiments, as shown in Figure 16 As shown, the connecting assembly 205 includes two L-shaped second connecting rods 207 symmetrically arranged on the second rotating seat 210 at a circumferential interval of 180 degrees, the end of the second connecting rod 207 is provided with the first round pin 208 whose axis is eccentrically perpendicular to the axis of the second rotating seat 210 and parallel to the fourth round pin 234, the first round pin 208 is located on the side away from the opening of the first fusing disc 220, and the first round pin 208 is rotatably arranged in the first rotating seat 209 on the sliding seat 201.

[0057] In further embodiments, as shown in Figure 18 , Figure 19 As shown, the outer edge of the second inner arc plate 228 is arc-shaped towards the second outer arc plate 226, the outer edge of the fourth inner arc plate 247 is arc-shaped towards the fourth outer arc plate 246, and the outer edges of the first inner arc plate 223, the second outer arc plate 226, the third inner arc plate 244 and the fourth outer arc plate 246 are all provided with three evenly distributed elastic baffles 224.

[0058] In further embodiments, as shown in Figure 10 As shown, the limiting assembly 252 includes the first gear 212 arranged on the first rotating sleeve 211, the first gear 212 is engaged with the second gear 213 arranged on the first connecting rod 206 or the second connecting rod 207, the transmission ratio of the first gear 212 and the second gear 213 is 1:2, the second round pin 214 is arranged on the rim of the second gear 213, the second rotating sleeve 215 is rotatably arranged on the second round pin 214, the third rotating sleeve 217 is connected with the second rotating sleeve 215 through the first spring 216, and the third rotating sleeve 217 is rotatably arranged on the third round pin 218 on the first connecting rod 206 or the second connecting rod 207.

[0059] In further embodiments, as shown in Figure 7 , Figure 8 , Figure 9 , Figure 13 ,Figure 18 As shown, the front end of the first fusion splice tray is provided with a support 249 by bolts, and the support 249 is provided with a third rotating seat 250 coaxial with the first rotating sleeve 211, and a fiber lead sleeve 251 is rotatably arranged in the third rotating seat 250 to lead all the second tail fibers 111 downward.

[0060] In further embodiments, as shown, Figure 4 As shown, the tensioning assembly 300 includes a cable lead sleeve 301 arranged on the rear side of the cabinet 101 opposite the rear side cable through hole 202 of the sliding seat 201, and a swing rod 302 hingedly connected to the rear side of the cabinet 101, the upper end of the swing rod 302 is arranged in a tensioning groove 305 which forms a small curvature support for the optical cable 106, and a leaf spring 304 is connected between the swing rod 302 and the cabinet 101 to swing the swing rod 302 backward, the rear side of the cabinet 101 is provided with a limiting sleeve 303 to limit the swing amplitude of the swing rod 302, and a clamping sleeve 306 to fix the sagging part of the optical cable 106, and the optical cable 106 passes through the tensioning groove 305, the cable lead sleeve 301 and the first rotating sleeve 211 in sequence from bottom to top and is redundantly wound on the three cable clamps 242 on the second fiber fusion tray 235.

[0061] The fiber fusion tray assembly 219 in the application can rotate 180 degrees relative to the corresponding sliding seat 201 around the horizontal axis of the first rotating sleeve 211 after being pulled out of the cabinet 101, so that the opening of the first fiber fusion tray 220 in the fiber fusion tray assembly 219 is opposite to the opening of the first fiber fusion tray 220 in the adjacent or nearby fiber fusion tray assembly 219 which needs to be repaired, so that the maintenance personnel who maintain the two fiber fusion tray assemblies 219 can simultaneously perform maintenance operations on the two fiber fusion tray assemblies 219 without interfering with each other, thereby improving the efficiency of ODU sub-frame maintenance. The fiber fusion tray assembly 219 in the application can swing 90 degrees from right to left away from the right adjacent or nearby sub-frame assembly 200 which needs to be repaired around the vertical axis of the first round pin 208 in the corresponding connecting assembly 205 after being pulled out of the cabinet 101, so that the opening of the fiber fusion tray assembly 219 faces outward from the cabinet 101 to the maintainer, so that the two maintainers who maintain the two fiber fusion tray assemblies 219 are respectively located on both sides of the right fiber fusion tray assembly 219 and simultaneously perform maintenance operations on the two fiber fusion tray assemblies 219 respectively, thereby effectively improving the maintenance efficiency of the ODU sub-frame. The limiting assembly 252 for limiting the 180-degree swing of the fiber fusion tray assembly 219 in the sub-frame assembly 200 in the application can ensure that the fiber fusion tray assembly 219 will automatically generate a 180-degree swing after rotating in any direction around the axis of the first rotating sleeve 211, and ensure that the opening of the first fiber fusion tray 220 in the fiber fusion tray assembly 219 which has rotated is opposite to the opening of the first fiber fusion tray 220 in the adjacent or nearby fiber fusion tray assembly 219 which needs to be repaired, thereby facilitating two maintenance personnel to simultaneously maintain two fiber fusion tray assemblies 219.

[0062] The operation flow of the present application is as follows:

[0063] In the initial state, the cabinet door 102 on the front side of the cabinet body 101 is closed, each sub-frame assembly 200 is inserted into the cabinet body 101, the second fusion fiber disc 235 in each sub-frame assembly 200 is in the closed state relative to the corresponding first fusion fiber disc 220, the two top posts 221 abut against the second fusion fiber disc 235, and the two second springs 239 are in the stretched state, as shown in Figure 14 Figure 15 The distance between the second limiting block 204 on the sliding seat 201 and the first limiting block 105 on the partition plate 103 is greater than the distance between the front end of the first fusion fiber disc 220 and the front end of the sliding seat 201, which ensures that the first fusion fiber disc 220 in the sub-frame assembly 200 can be completely pulled out of the cabinet body 101 and can freely rotate or swing around the first rotating sleeve 211 or the first round pin 208, the end of the wound optical cable 106 on the second fusion fiber disc 235 is stripped to expose the fiber core 107, the fiber core 107 transitions to the first fusion fiber disc 220 and is wound for a corresponding number of turns in the first clamping groove 225 and the second clamping groove 229 and is fixed in the corresponding third clamping groove 230, and the first tail fiber 109 is wound for a corresponding number of turns in the first clamping groove 225 and the second clamping groove 229 on the first fusion fiber disc 220 and is fixed in the corresponding fourth clamping groove 231. As shown in Figure 11 The end of the first tail fiber 109 is fusion spliced with the corresponding fiber core 107 at the position between the third clamping groove 230 and the fourth clamping groove 231, and the splicing point is wrapped with a sheath 112, and the wall of the sheath 112 is provided with a steel needle 113 to prevent the splicing point from breaking. The axes of the second round pin 214 and the third round pin 218 in the limiting assembly 252 are in the same plane as the axis of the second gear 213, and the first spring 216 is in the stretched state.

[0064] When two people need to check and repair the sub-frame assemblies 200 located in the same layer, if the distance between the two sub-frame assemblies 200 being checked or repaired by the two people at the same time in the same layer is greater than the maximum diameter edge size of the first fusion fiber disc 220 around the axis of the first rotating sleeve 211, after the fusion disc assemblies 219 of the two sub-frame assemblies 200 are completely pulled out, one of the fusion disc assemblies 219 is manually rotated by 180 degrees around the axis of the corresponding first rotating sleeve 211, so that the opening of the first fusion fiber disc 220 in the rotating fusion disc assembly 219 is opposite to the opening of the first fusion fiber disc 220 in the other sub-frame assembly 200, which facilitates the two repairers to repair or check the internal structures of the corresponding fusion disc assemblies 219 on both sides of the two first fusion fiber discs 220, respectively, without mutual interference since the two repairers are located on both sides of the two fusion disc assemblies 219.

[0065] ​If the distance between two sub-frame assemblies 200 being checked or repaired by two persons at the same time in the same layer is less than the maximum diameter edge size of the first fusing fiber disc 220 around the first rotating sleeve 211 axis, and if the connecting assembly 205 is the first connecting rod 206, then the two fusing fiber disc assemblies 219 are pulled out in sequence, first pull out the fusing fiber disc assembly 219 with the opening of the first fusing fiber disc 220 away from the corresponding repairer, and then rotate 180 degrees around the corresponding first rotating sleeve 211, so that the opening of the first fusing fiber disc 220 in the fusing fiber disc assembly 219 is opposite to the opening of the first fusing fiber disc 220 in the other fusing fiber disc assembly 219. Then pull out the fusing fiber disc assembly 219 of the other sub-frame assembly 200 completely, so that the two repairers can repair or check the internal structure of the corresponding fusing fiber disc assembly 219 on both sides of the two first fusing fiber discs 220 respectively, and there is no interference between the two repairers.

[0066] As shown in Figure 17 If the distance between two sub-frame assemblies 200 being checked or repaired by two persons at the same time in the same layer is less than the maximum diameter edge size of the first fusing fiber disc 220 around the first rotating sleeve 211 axis, and if the connecting assembly 205 is the second connecting rod 207 rotatingly hinged with the first rotating seat 209 on the slide 201 through the first round pin 208, then the two fusing fiber disc assemblies 219 can be pulled out simultaneously without sequence, and after the two fusing fiber disc assemblies 219 are pulled out completely, first rotate the fusing fiber disc assembly 219 in the sub-frame assembly 200 with the opening of the first fusing fiber disc 220 away from the corresponding repairer by 90 degrees in the direction away from the other fusing fiber disc assembly 219 around the corresponding first round pin 208, so that the opening direction of the first fusing fiber disc 220 in the fusing fiber disc assembly 219 with the opening of the first fusing fiber disc 220 away from the corresponding repairer is the same as the opening direction of the cabinet door 102 of the cabinet body 101, which is convenient for the corresponding repairer to repair and check the fusing fiber disc assembly 219 in front of the opening of the first fusing fiber disc 220, without affecting the repair and check of the corresponding fusing fiber disc assembly 219 by the repairer of the other fusing fiber disc assembly 219.

[0067] After the fusing fiber disc assembly 219 is pulled out completely, the second limiting block 204 on the slide 201 abuts against the first limiting block 105 on the corresponding two partitions 103 in the depth direction of the cabinet body 101, so as to ensure that the slide 201 does not separate from the sliding groove 104 on the partition 103.

[0068] During the rotation of the fiber melting tray assembly 219 relative to the slide block 201 around the axis of the first rotating sleeve 211, the first fiber melting tray 220 drives the first gear 212 to rotate 180 degrees through the first rotating sleeve 211. The first gear 212 drives the second gear 213 to rotate 360 ​​degrees. The second gear 213 drives the first spring 216 and the third rotating sleeve 217 to swing back and forth around the third pin 218 through the second round pin 214 and the second rotating sleeve 215 to complete the reset in sequence. During this process, the first spring 216 reciprocates once to restore the original state and makes the position of the second gear 213 complete the positioning, thereby making the entire fiber melting tray assembly 219 effectively positioned after rotating 180 degrees.

[0069] like Figure 13 As shown, when inspecting and repairing the internal structure of the fiber fusion tray assembly 219, the second fiber fusion tray 235 is manually opened. The second fiber fusion tray 235 swings 90 degrees around the fourth round pin 234. The fixing rod 233 prevents the second fiber fusion tray 235 from swinging more than 90 degrees. After the second fiber fusion tray 235 is opened 90 degrees, the two second springs 239 reach the other side of the fourth round pin 234 and position the open state of the second fiber fusion tray 235. The second springs 239 complete one reciprocating extension and retraction during the opening or closing of the second fiber fusion tray 235.

[0070] The baffles 224 on the first inner arc plate 223 and the second outer arc plate 226 respectively limit the fiber core 107 and the first tail fiber 109 in the first slot 225 and the second slot 229 to prevent the fiber core 107 and the first tail fiber 109 from falling out of the first slot 225 and the second slot 229. The outward flange on the upper edge of the second inner arc plate 228 can also ensure that the fiber core 107 and the first tail fiber 109 in the second slot 229 are disengaged from the second slot 229.

[0071] The baffles 224 on the third inner arc plate 244 and the fourth outer arc plate 246 respectively limit the fiber core 107 and the first tail fiber 109 in the fifth slot 245 and the sixth slot 248 to prevent the fiber core 107 and the first tail fiber 109 from falling out of the fifth slot 245 and the sixth slot 248. The outward flange on the upper edge of the fourth inner arc plate 247 can also ensure that the fiber core 107 and the first tail fiber 109 in the sixth slot 248 are disengaged from the sixth slot 248.

Claims

1. A compatible ODU subframe for splicing and distribution management of optical fiber cores and first pigtails, characterized in that, include: The sub-frame assembly, which is arranged in layers inside the cabinet, is used for the splicing and distribution management of the fiber core and the first pigtail of the optical cable. The sub-frame assembly includes a slide block that slides between two upper and lower partitions inside the cabinet along the depth direction of the cabinet. The slide block is connected to a second rotating block through a connecting component. A first rotating sleeve with its axis parallel to the depth direction of the cabinet is rotatably arranged inside the second rotating block. A limiting component that automatically limits the first rotating sleeve after it rotates 180 degrees is connected to the connecting component. A fiber splicing tray assembly is provided at the front end of the first rotating sleeve for storing the redundancy of the optical cable and the first pigtail and for splicing and fixing the fiber core and the first pigtail of the optical cable. The tensioning assembly located at the rear of the cabinet is used to provide appropriate elastic tension to the optical cable at the rear of the sub-frame assembly.

2. The compatible ODU subframe according to claim 1, characterized in that, The upper and lower sides of the slide are provided with T-shaped guide bars. The guide bars slide in the T-shaped grooves on the corresponding side partitions. The slide is provided with a second limiting block that cooperates with the first limiting block on the partition to limit the slide's sliding range out of the cabinet. The rear side of the slide is provided with a cable hole that allows optical cables to pass through.

3. A compatible ODU subframe according to claim 1, characterized in that, The connecting assembly includes two first connecting rods, which fix the second rotary seat to the slide.

4. A compatible ODU subframe according to claim 1, characterized in that, The fiber fusion tray assembly includes a first fiber fusion tray disposed at the end of the first rotating sleeve and open on one side. The front end of the first fiber fusion tray has several sockets for inserting first plugs at the ends of first pigtails. The first plugs are engaged with second plugs at the ends of second pigtails. The inner sidewall of the first fiber fusion tray has a first outer arc plate, a first inner arc plate, a second outer arc plate, and a second inner arc plate. The first outer arc plate and the first inner arc plate form an arc-shaped first slot. The second outer arc plate and the second inner arc plate form a second slot with an arc radius and curvature equal to the first slot. The first and second slots are symmetrically distributed on both sides of the first rotating sleeve. The inner sidewall of the first fiber fusion tray has two sets of third slots and two sets of fourth slots. The two sets of third slots are respectively located at... At both ends of the second slot, two sets of fourth slots are located at both ends of the first slot. Two fixing rods are symmetrically arranged at the rear end of the first fusion splice tray. The ends of the two fixing rods are hinged to a second fusion splice tray that controls the opening of the first fusion splice tray. A third outer arc plate, a third inner arc plate, a fourth outer arc plate, and a fourth inner arc plate are arranged on the inner side of the second fusion splice tray. The third outer arc plate and the third inner arc plate form an arc-shaped fifth slot, which is opposite to the first slot. The fourth outer arc plate and the fourth inner arc plate form a sixth slot with an arc radius and arc equal to that of the fifth slot, which is opposite to the second slot. Three cable clips are arranged at 90-degree intervals around the second fusion splice tray for winding redundant optical cables.

5. A compatible ODU subframe according to claim 4, characterized in that, The fixing rod is hinged to the lug on the inner side of the second melting plate by the fourth round pin. Two fifth round pins are symmetrically arranged on both sides of the second melting plate. A fourth rotating sleeve is rotatably arranged on the fifth round pin. The fourth rotating sleeve is connected to the fifth rotating sleeve by the second spring. The fifth rotating sleeve is rotatably arranged on the sixth round pin on the inner wall of the first melting plate. The second spring is located on both sides of the fifth round pin when the second melting plate is opened and the first melting plate is closed. Two top posts are symmetrically arranged on the inner side of the first melting plate to limit the closing range of the second melting plate.

6. A compatible ODU subframe according to claim 4, characterized in that, The connecting assembly includes two L-shaped second connecting rods symmetrically arranged at 180-degree intervals around the second rotating base. The end of the second connecting rod is provided with a first round pin whose axis is eccentrically perpendicular to the axis of the second rotating base and parallel to the fourth round pin. The first round pin is located on the side away from the opening of the first melting plate and rotates within the first rotating base on the slide.

7. A compatible ODU subframe according to claim 4, characterized in that, The outer edge of the second inner arc plate bends toward the second outer arc plate, and the outer edge of the fourth inner arc plate bends toward the fourth outer arc plate. The outer edges of the first inner arc plate, the second outer arc plate, the third inner arc plate, and the fourth outer arc plate are each provided with three evenly distributed elastic baffles.

8. A compatible ODU subframe according to claim 3 or 6, characterized in that, The limiting component includes a first gear disposed on a first rotating sleeve, the first gear meshing with a second gear disposed on a first connecting rod or a second connecting rod, the transmission ratio of the first gear and the second gear being 1:2, a second round pin disposed on the rim of the second gear, a second rotating sleeve rotatably disposed on the second round pin, and a third rotating sleeve connected to the second rotating sleeve via a first spring, the third rotating sleeve rotatably disposed on a third round pin on the first connecting rod or the second connecting rod.

9. A compatible ODU subframe according to claim 4, characterized in that, The front end of the first fiber melting tray is bolted with a bracket, and a third rotating seat coaxial with the first rotating sleeve is provided on the bracket. A fiber guiding sleeve for drawing down all the second tail fibers is rotatably arranged inside the third rotating seat.

10. A compatible ODU subframe according to claim 2 or 4, characterized in that, The tensioning assembly includes a cable guide sleeve located on the rear side of the cabinet and opposite to the cable hole on the rear side of the slide, and a swing rod with its lower end hinged to the rear side of the cabinet. The upper end of the swing rod is provided with a tensioning groove that provides small curvature support for the optical cable. A leaf spring is connected between the swing rod and the cabinet to allow the swing rod to swing backward. The rear side of the cabinet is provided with a limiting sleeve that limits the swing amplitude of the swing rod and a clamp that fixes the drooping part of the optical cable. The optical cable passes through the tensioning groove, the cable guide sleeve, and the first rotating sleeve in sequence from bottom to top and is redundantly wound around three cable clips on the second fiber splicing reel.

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