Rotary optical fiber distribution frame convenient to maintain

Abstract

The invention belongs to the technical field of optical fiber communication equipment, and particularly relates to a rotary optical fiber distribution frame convenient to maintain, which comprises a shell, a plurality of optical fiber distribution frames, a plurality of hollow shafts, a first wire arrangement assembly, a first limiting assembly, a second wire arrangement assembly, a mounting frame, a third wire arrangement assembly, a second limiting assembly, a plurality of optical fiber connectors and a plurality of optical fiber connecting wires, the hollow shafts are fixedly installed on the corresponding optical fiber distribution frames respectively and located on the same axis, every two adjacent hollow shafts are rotationally connected, the hollow shaft located at the forefront and the hollow shaft located at the rearmost are rotationally installed on the inner walls of the front side and the rear side of the shell respectively, and the hollow shaft located at the rearmost extends to the rear side of the shell. Threading openings are formed in the plurality of hollow shafts; the number of the first wire arrangement assemblies, the number of the second wire arrangement assemblies and the number of the third wire arrangement assemblies are the same as the number of the optical fiber distribution frames, and the first wire arrangement assemblies, the second wire arrangement assemblies and the third wire arrangement assemblies are arranged on the corresponding optical fiber distribution frames respectively. The system is reasonable in design, is simple and convenient to operate, and can greatly improve the management efficiency and maintenance convenience of an optical fiber connection line.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber communication equipment, and in particular to a rotary optical fiber distribution frame which is easy to maintain. Background Art

[0002] Traditional optical fiber patch panels have exposed many drawbacks in actual application. On the one hand, with the rapid growth of communication business volume, the number of optical fibers has increased significantly. The internal wiring of traditional optical fiber patch panels is chaotic, and the optical fibers are frequently entangled and squeezed. At the same time, when they are inspected and repaired, they need to be pulled out of the shell. In the process of pulling out, the optical fiber connection line is prone to pulling and damage, which not only brings great difficulties to daily maintenance and troubleshooting, but also easily causes signal attenuation or even interruption due to excessive bending of the optical fiber, seriously affecting the communication quality. On the other hand, when it is necessary to adjust or expand the optical fiber connection line, the traditional optical fiber patch panel is cumbersome to operate, and the staff often need to spend a lot of time and energy to sort out the complex lines. This is not only inefficient, but also very easy to operate incorrectly during operation, damaging other normally operating optical fiber connection lines, and then causing network failures.

[0003] In addition, in some communication rooms with limited space or places with special requirements for equipment installation locations, the fixed structure of traditional optical fiber distribution frames lacks flexibility and is difficult to meet diverse installation requirements. For example, in some small base stations or distributed antenna systems, the narrow space makes it difficult to install traditional optical fiber distribution frames. Even if they are barely installed, subsequent maintenance operations are extremely inconvenient.

[0004] In view of the above-mentioned problems existing in traditional optical fiber distribution frames, the present invention aims to provide a rotatable optical fiber distribution frame that is easy to maintain. Through innovative structural design, it effectively solves the problems of messy optical fiber wiring, susceptibility to pulling damage, inconvenient operation and poor installation flexibility, so as to meet the growing demand for efficient and stable optical fiber communication network construction. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a rotary optical fiber distribution frame which is easy to maintain.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a rotary optical fiber distribution frame that is easy to maintain, comprising a housing, a plurality of optical fiber distribution frames, a plurality of hollow shafts, a cable management component 1, a limiter component 1, a cable management component 2, a mounting frame, a cable management component 3, a limiter component 2, a plurality of optical fiber connectors and a plurality of optical fiber connecting lines;

[0007] A plurality of hollow shafts are respectively fixedly installed on corresponding fiber optic distribution frames and are located on the same axis, and a rotational connection is maintained between two adjacent hollow shafts. The hollow shaft at the forefront and the hollow shaft at the rearmost are respectively rotatably installed on the front and rear inner walls of the housing. The hollow shaft at the rearmost extends to the rear side of the housing, and threading openings are provided on all the hollow shafts;

[0008] The number of the first cable management component, the second cable management component, and the third cable management component is the same as the number of fiber optic distribution frames and are respectively arranged on corresponding fiber optic distribution frames. The second cable management component located on the same fiber optic distribution frame is inside the first cable management component, and the third cable management component is arranged at a position on the fiber optic distribution frame close to the hollow shaft. The number of the mounting frames is the same as the number of fiber optic distribution frames. A plurality of fiber optic connectors are respectively snap - installed on corresponding mounting frames. A plurality of fiber optic connection lines are respectively connected to corresponding fiber optic connectors, and all the plurality of fiber optic connection lines are fixed on corresponding fiber optic distribution frames through the first cable management component, the second cable management component, and the third cable management component;

[0009] The first limiting component is arranged on the first cable management component. The second limiting component is arranged on the housing and is connected to a plurality of fiber optic distribution frames.

[0010] Preferably, the first cable management component includes a strip - shaped plate, a cable management plate, and a plurality of cable management grooves. An installation groove is provided on the front side of the fiber optic distribution frame. The strip - shaped plate and the cable management plate are fixedly installed in the installation groove and are arranged parallel to each other. A plurality of guiding holes are provided on the strip - shaped plate. Cable management grooves are provided on the front side of the cable management plate. A plurality of fiber optic connection lines respectively pass through corresponding cable management grooves, guiding holes, and threading openings and then extend into corresponding hollow shafts.

[0011] Preferably, the second cable management component includes a plurality of cylindrical winding blocks and a plurality of anti - detachment limiting blocks. A plurality of cylindrical winding blocks are fixedly installed at a position between the strip - shaped plate and the cable management plate in the installation groove. Anti - detachment limiting blocks are fixedly installed on the front sides of all the plurality of cylindrical winding blocks. A plurality of fiber optic connection lines respectively wind around the outer sides of corresponding cylindrical winding blocks.

[0012] Preferably, a silica gel ring is pasted and covered on the outer peripheral side of the cylindrical winding block.

[0013] Preferably, the third cable management component includes a static clamping strip, a moving clamping strip, two guiding clamping blocks, and two guiding clamping grooves. The static clamping strip is fixedly installed on the rear inner wall of the installation groove with the hollow shaft as the center. Two guiding clamping grooves in a convex shape are provided on the side wall of the installation groove. Guiding clamping blocks are damping - slidably installed in both the two guiding clamping grooves. The two guiding clamping blocks are fixedly installed with the same moving clamping strip. All the plurality of fiber optic connection lines pass through the position between the static clamping strip and the moving clamping strip.

[0014] Preferably, anti-slip pressing strips are fixedly installed on the sides of the static clamping strip and the moving clamping strip that are close to each other, and both anti-slip pressing strips are in contact with a plurality of optical fiber connecting lines.

[0015] Preferably, the first limiting component includes a plurality of limiting strips, a plurality of rotating pins, a plurality of first reset torsion springs, and a plurality of limiting blocks. A plurality of rotating pins are rotatably installed on the front side of the wire arranging board. Limiting strips are radially fixedly installed on the plurality of rotating pins. First reset torsion springs that are movably sleeved outside the rotating pins are fixedly installed on the rear sides of the plurality of limiting strips. The plurality of first reset torsion springs are fixedly connected to the front side of the wire arranging board. A limiting block is fixedly installed on the front side of the wire arranging board. The limiting block is located in front of the wire arranging groove and is in contact with the limiting strip.

[0016] Preferably, a dial rod is fixedly installed on the front side of the limiting strip.

[0017] Preferably, the second limiting component includes a plurality of rotating blocks, a plurality of limiting blocks, a plurality of second reset torsion springs, and a plurality of limiting grooves. A plurality of supporting blocks are fixedly installed on one side of the housing. The same rotating rod is rotatably installed on two adjacent supporting blocks. Rotating blocks are radially fixedly installed on the plurality of rotating rods. Limiting blocks are fixedly installed on the plurality of rotating blocks. Limiting grooves are opened on the plurality of optical fiber distribution frames. The plurality of limiting blocks are respectively snap-fitted and installed in the corresponding limiting grooves. Second reset torsion springs are movably sleeved outside the plurality of rotating rods. Two ends of the second reset torsion spring are respectively fixedly connected to the rotating block and the corresponding supporting block.

[0018] Preferably, a handle is fixedly installed on the rotating block.

[0019] The beneficial effects of the present invention are:

[0020] By adopting the above technical solutions, the rotary optical fiber distribution frame of the present invention has the following advantages:

[0021] By providing the first wire arranging component, the second wire arranging component, and the third wire arranging component, multiple wire arranging effects can be provided for the optical fiber connecting lines, avoiding the phenomenon that the optical fiber connecting lines are prone to be messy in the optical fiber distribution frame. At the same time, it can avoid the phenomenon that the optical fiber connecting lines are damaged due to pulling when the optical fiber distribution frame rotates around the hollow shaft, ensuring the service life of the optical fiber connecting lines and facilitating later maintenance.

[0022] By providing the first limiting component, effective limiting can be provided for the optical fiber connecting lines passing through the wire arranging groove, avoiding the phenomenon that the optical fiber connecting lines fall off and ensuring the wire arranging effect of the first wire arranging component.

[0023] By providing the second limiting component, limiting can be provided for the optical fiber distribution frame. At the same time, it is convenient for operators to limit and quickly release the limit of the optical fiber distribution frame, facilitating later maintenance. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a rotatable optical fiber distribution frame that is convenient for maintenance proposed by the present invention;

[0026] Figure 2 It is a schematic diagram of one of the optical fiber distribution frames of the present invention in a rotated and unfolded state;

[0027] Figure 3 It is Figure 1 a partial three-dimensional structural schematic diagram;

[0028] Figure 4 It is Figure 3 a partial three-dimensional structural schematic diagram;

[0029] Figure 5 It is Figure 3 a structural schematic diagram of part A in

[0030] Figure 6 It is a structural schematic diagram of the housing and the limiting component II in the present invention;

[0031] Figure 7 It is Figure 6 a structural schematic diagram from another perspective;

[0032] Figure 8 It is a partial three-dimensional structural schematic diagram of the limiting component in the present invention;

[0033] Figure 9 It is a partial three-dimensional structural schematic diagram of the limiting component II in the present invention;

[0034] Figure 10 It is a structural schematic diagram of the movable card strip, the guiding card block and the anti-slip pressing strip in the present invention.

[0035] In the figure: 1. Housing; 2. Fiber optic distribution frame; 21. Hollow shaft; 3. Strip board; 31. Cable management board; 311. Cable management groove; 32. Mounting frame; 33. Cylindrical winding block; 331. Anti - detachment limit block; 34. Static clamping strip; 35. Movable clamping strip; 351. Guide clamping block; 352. Guide clamping groove; 36. Anti - slip pressing strip; 37. Limit strip; 371. Rotating pin; 372. First reset torsion spring; 373. Limit stop block; 4. Fiber optic connector; 41. Fiber optic connection line; 5. Rotating block; 51. Limit clamping block; 52. Second reset torsion spring; 53. Handle; 54. Limit clamping groove. Detailed implementation mode

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0037] Refer to Figures 1 - 10 , a rotatable fiber optic distribution frame convenient for maintenance, including a housing 1, a plurality of fiber optic distribution frames 2, a plurality of hollow shafts 21, a mounting frame 32, a plurality of fiber optic connectors 4 and a plurality of fiber optic connection lines 41. The plurality of hollow shafts 21 are respectively fixedly installed on the corresponding fiber optic distribution frames 2 and are located on the same axis, and are rotatably connected between adjacent two hollow shafts 21. The hollow shaft 21 at the frontmost and the hollow shaft 21 at the rearmost are respectively rotatably installed on the front and rear inner walls of the housing 1. The hollow shaft 21 at the rearmost extends to the rear side of the housing 1, and threading openings are provided on all the plurality of hollow shafts 21;

[0038] The number of the mounting frames 32 is the same as that of the fiber optic distribution frames 2. The plurality of fiber optic connectors 4 are respectively snap - connected and installed on the corresponding mounting frames 32, and the plurality of fiber optic connection lines 41 are respectively connected to the corresponding fiber optic connectors 4;

[0039] An installation groove is formed on the front side of the optical fiber distribution frame 2. A strip-shaped plate 3 and a wire management plate 31 are fixedly installed in the installation groove. The strip-shaped plate 3 and the wire management plate 31 are arranged in parallel. A plurality of guiding holes are formed on the strip-shaped plate 3. A wire management groove 311 is formed on the front side of the wire management plate 31. A plurality of optical fiber connection lines 41 respectively pass through the corresponding wire management grooves 311, guiding holes and wire passing openings and then extend into the corresponding hollow shafts 21, which can provide a preliminary wire management effect for the optical fiber connection lines 41. A plurality of cylindrical winding blocks 33 are fixedly installed at the position between the strip-shaped plate 3 and the wire management plate 31 in the installation groove. A plurality of optical fiber connection lines 41 respectively wind around the outer sides of the corresponding cylindrical winding blocks 33. The cylindrical winding blocks 33 are provided to wind a certain length of the optical fiber connection lines 41 to avoid damage or excessive bending of the optical fiber connection lines 41 caused by pulling, which may affect the normal use. Anti-detachment limit blocks 331 are fixedly installed on the front sides of the plurality of cylindrical winding blocks 33, aiming to prevent the optical fiber connection lines 41 wound around the outer sides of the cylindrical winding blocks 33 from detaching from the cylindrical winding blocks 33, which can provide a further wire management effect for the optical fiber connection lines 41 and can avoid the pulling phenomenon of the optical fiber connection lines 41 when the optical fiber distribution frame 2 rotates around the hollow shaft 21;

[0040] A static clamping strip 34 is fixedly installed on the rear inner wall of the installation groove around the hollow shaft 21 as the center. Two convex-shaped guiding clamping grooves 352 are formed on the side wall of the installation groove. Guiding clamping blocks 351 are installed in the two guiding clamping grooves 352 in a damped sliding manner. The two guiding clamping blocks 351 are fixedly installed with the same moving clamping strip 35. A plurality of optical fiber connection lines 41 all pass through the position between the static clamping strip 34 and the moving clamping strip 35, and can realize the pressing and fixing of the plurality of optical fiber connection lines 41 in a pressing and fixing manner, thereby avoiding the phenomenon that the optical fiber connection lines 41 are prone to be messy in the optical fiber distribution frame 2;

[0041] A plurality of rotating pins 371 are rotatably installed on the front side of the wire management plate 31. Limiting strips 37 are radially fixedly installed on the plurality of rotating pins 371. First reset torsion springs 372 sleeved on the outer sides of the rotating pins 371 are fixedly installed on the rear sides of the plurality of limiting strips 37. The plurality of first reset torsion springs 372 are fixedly connected to the front side of the wire management plate 31. A limiting stop block 373 is fixedly installed on the front side of the wire management plate 31. The limiting stop block 373 is located in front of the wire management groove 311 and abuts against the limiting strip 37, which can provide effective limitation for the optical fiber connection lines 41 passing through the wire management groove 311;

[0042] On one side of the housing 1, a plurality of support blocks are fixedly installed. A same rotating rod is rotatably installed on two adjacent support blocks. On each of the plurality of rotating rods, a rotating block 5 is radially fixedly installed. On each of the plurality of rotating blocks 5, a limiting block 51 is fixedly installed. On each of the plurality of optical fiber distribution frames 2, a limiting slot 54 is formed. The plurality of limiting blocks 51 are respectively clamped and installed in the corresponding limiting slots 54. On the outer sides of the plurality of rotating rods, a second reset torsion spring 52 is movably sleeved. Two ends of the second reset torsion spring 52 are respectively fixedly connected to the rotating block 5 and the corresponding support block, and can provide limitation for the optical fiber distribution frame 2.

[0043] In this embodiment, in order to provide an effective buffering effect when the optical fiber connecting line 41 is stretched and avoid the phenomenon that the optical fiber connecting line 41 is locally bent excessively, a silica gel ring is pasted and covered on the outer peripheral side of the cylindrical winding block 33.

[0044] In this embodiment, in order to ensure that the dynamic pressure strip 35 and the static pressure strip 34 cooperate to tightly limit the optical fiber connecting line 41 passing through, anti-slip pressure strips 36 are fixedly installed on the mutually approaching sides of the static clamping strip 34 and the dynamic clamping strip 35. Both of the two anti-slip pressure strips 36 are abutted against the plurality of optical fiber connecting lines 41.

[0045] In this embodiment, in order to facilitate the operator to control the limiting strip 37 to deflect around the rotating pin 371, so as to conveniently take out and put in the optical fiber connecting line 41 in the wire management groove 311, a dial rod is fixedly installed on the front side of the limiting strip 37.

[0046] In this embodiment, in order to facilitate the operator to control the rotation of the rotating block 5, so as to facilitate the limiting and quick release of the limit of the optical fiber distribution frame 2, a handle 53 is fixedly installed on the rotating block 5.

[0047] Working principle: In the actual operation process, when an operator needs to operate a certain optical fiber distribution frame, the corresponding rotating block 5 is rotated by operating the handle 53. This action will cause the limiting block 51 to disengage from the limiting slot 54. Once the limiting block 51 disengages, the optical fiber distribution frame 2 can rotate freely based on the hollow shaft 21. Since the hollow shafts 21 are connected to each other, each optical fiber distribution frame 2 can rotate independently without interference, which is beneficial to later maintenance and other operations.

[0048] After the optical fiber connecting line 41 is led out from the optical fiber connector 4, it will first pass through the cable management groove 311. Here, the limiting strip 37 limits the optical fiber connecting line under the action of the limiting block 373. Subsequently, the optical fiber connecting line 41 will pass through the guiding hole and the wire passing port and finally enter the hollow shaft 21. The setting of the hollow shaft 21 can guide the optical fiber connecting line 41, enabling multiple optical fiber connecting lines 41 to enter and exit the housing 1 and be introduced into the installation groove in the corresponding optical fiber distribution frame 2. When the optical fiber connecting line 41 bypasses the outer side of the cylindrical winding block 33, the silica gel ring can provide necessary buffering for the optical fiber connecting line and prevent the phenomenon of local excessive bending of the optical fiber connecting line 41. In order to ensure the stable fixation of the optical fiber connecting line 41 and prevent it from being in a mess, the static clamping strip 34 and the dynamic clamping strip 35 will tightly press the optical fiber connecting line 41 through the anti-slip pressing strip 36, so as to achieve the fixing effect. The setting of the anti-slip pressing strip 36 can not only realize the pressing and limiting of the optical fiber connecting line 41, but also avoid the situation that the optical fiber connecting line 41 is damaged by being pressed.

[0049] During the rotation of the optical fiber distribution frame 2, the optical fiber connecting line 41 wound around the cylindrical winding block 33 can adaptively adjust the winding tightness according to the rotation action of the optical fiber distribution frame. Such a design can effectively avoid damage to the optical fiber connecting line 41 due to excessive pulling. If the position of a certain optical fiber connecting line 41 needs to be adjusted, the operator can rotate the limiting strip 37 through the lever to temporarily move it away from the cable management groove 311. After the adjustment is completed, the limiting strip 37 will automatically reset under the action of the reset torsion spring 372 and continue to limit the optical fiber connecting line 41 to ensure the accuracy of its position.

[0050] The above has introduced in detail a rotatable optical fiber distribution frame that is easy to maintain provided by the present invention. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A rotary optical fiber distribution frame that is easy to maintain, characterized in that: It comprises a housing (1), a plurality of optical fiber distribution frames (2), a plurality of hollow shafts (21), a first cable management component, a first position limiting component, a second cable management component, a mounting frame (32), a third cable management component, a second position limiting component, a plurality of optical fiber connectors (4) and a plurality of optical fiber connecting lines (41); A plurality of hollow shafts (21) are respectively fixedly mounted on corresponding optical fiber distribution frames (2) and are located on the same axis, and two adjacent hollow shafts (21) are rotatably connected, the frontmost hollow shaft (21) and the rearmost hollow shaft (21) are respectively rotatably mounted on the front and rear inner walls of the housing (1), the rearmost hollow shaft (21) extends to the rear side of the housing (1), and a plurality of hollow shafts (21) are provided with threading openings; The number of the cable management components 1, 2 and 3 is the same as the number of the optical fiber distribution frames (2) and they are respectively arranged on the corresponding optical fiber distribution frames (2); the cable management components 2 located on the same optical fiber distribution frame (2) are located inside the cable management components 1, and the cable management components 3 are arranged on the optical fiber distribution frame (2) at a position close to the hollow shaft (21); the number of the mounting frames (32) is the same as the number of the optical fiber distribution frames (2); a plurality of optical fiber connectors (4) are respectively mounted on the corresponding mounting frames (32); a plurality of optical fiber connecting wires (41) are respectively connected to the corresponding optical fiber connectors (4), and the plurality of optical fiber connecting wires (41) are fixed to the corresponding optical fiber distribution frames (2) through the cable management components 1, 2 and 3; The first limiting component is arranged on the first wiring assembly, and the second limiting component is arranged on the housing (1) and connected to a plurality of optical fiber distribution frames (2).

2. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The cable management component 1 comprises a strip plate (3), a cable management plate (31) and a plurality of cable management grooves (311); a mounting groove is provided on the front side of the optical fiber distribution frame (2); the strip plate (3) and the cable management plate (31) are fixedly installed in the mounting groove; the strip plate (3) and the cable management plate (31) are arranged parallel to each other; a plurality of guide holes are provided on the strip plate (3); a cable management groove (311) is provided on the front side of the cable management plate (31); a plurality of optical fiber connecting lines (41) respectively penetrate the corresponding cable management grooves (311), the guide holes and the threading openings and then extend into the corresponding hollow shafts (21).

3. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The second cable management component comprises a plurality of cylindrical cable winding blocks (33) and a plurality of anti-slip limit blocks (331); a plurality of cylindrical cable winding blocks (33) are fixedly installed at positions between the strip plate (3) and the cable management plate (31) in the installation groove; an anti-slip limit block (331) is fixedly installed on the front sides of the plurality of cylindrical cable winding blocks (33); and a plurality of optical fiber connecting lines (41) are respectively wound around the outer sides of the corresponding cylindrical cable winding blocks (33).

4. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The outer peripheral side of the cylindrical winding block (33) is adhered and covered with a silicone ring.

5. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The cable management component three comprises a static card strip (34), a dynamic card strip (35), two guide card blocks (351) and two guide card slots (352); a static card strip (34) is fixedly installed on the rear inner wall of the installation slot based on the hollow shaft (21) as the center; two convex guide card slots (352) are provided on the side wall of the installation slot; guide card blocks (351) are damped and slidably installed in the two guide card slots (352); the same dynamic card strip (35) is fixedly installed on the two guide card blocks (351); and a plurality of optical fiber connecting lines (41) are all passed through the position between the static card strip (34) and the dynamic card strip (35).

6. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: An anti-slip pressure strip (36) is fixedly installed on one side of the static clamping strip (34) and the dynamic clamping strip (35) that are close to each other, and the two anti-slip pressure strips (36) are in contact with a plurality of optical fiber connecting lines (41).

7. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The limiting assembly comprises a plurality of limiting strips (37), a plurality of rotating pins (371), a plurality of return torsion springs (372) and a plurality of limiting blocks (373); a plurality of rotating pins (371) are rotatably mounted on the front side of the cable management plate (31); the limiting strips (37) are radially fixedly mounted on the plurality of rotating pins (371); a return torsion spring (372) movably sleeved on the outside of the rotating pins (371) is fixedly mounted on the rear side of the plurality of limiting strips (37); the plurality of return torsion springs (372) are fixedly connected to the front side of the cable management plate (31); a limiting block (373) is fixedly mounted on the front side of the cable management plate (31); the limiting block (373) is located at the front side of the cable management slot (311) and abuts against the limiting strip (37).

8. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: A shifting rod is fixedly mounted on the front side of the limiting strip (37).

9. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: The second limiting assembly comprises a plurality of rotating blocks (5), a plurality of limiting clamping blocks (51), a plurality of second return torsion springs (52) and a plurality of limiting clamping slots (54); a plurality of support blocks are fixedly mounted on one side of the housing (1); a same rotating rod is rotatably mounted on two adjacent support blocks; a plurality of rotating rods are radially fixedly mounted with rotating blocks (5); a plurality of rotating blocks (51) are fixedly mounted with limiting clamping slots (54); a plurality of optical fiber distribution frames (2) are provided with limiting clamping slots (54); a plurality of limiting clamping blocks (51) are respectively clamped and mounted in corresponding limiting clamping slots (54); a plurality of rotating rods are movably sleeved with second return torsion springs (52); and two ends of the second return torsion springs (52) are respectively fixedly connected to the rotating blocks (5) and the corresponding support blocks.

10. The maintenance-friendly rotating optical fiber distribution frame according to claim 1, characterized in that: A handle (53) is fixedly mounted on the rotating block (5).

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