Clamping mechanism and optical cable distribution box

CN222514662UActive Publication Date: 2025-02-21南京天润科技有限公司
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Patent Information

Application Number
CN202421414288.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-02-21
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

The existing optical cable fixing methods are unstable and are easily affected by external vibration or impact, and the bolts are easily oxidized and loosened, resulting in the optical cable being unstable and affecting the quality of optical signal transmission.

Method used

A clamping mechanism is designed, including a box, an access hole, a fixing ring, a rotating assembly and an adjustment assembly. By rotating the assembly and adjusting the assembly, the optical cable is clamped with the clamping rod and the rubber sheath to reduce the impact on the optical cable transmission signal, and achieve dustproof effect through mutual extrusion of the silicone sheath.

Benefits of technology

It realizes more stable optical cable clamping, avoids internal damage to the optical cable, improves the quality of optical signal transmission, and provides dust-proof protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of optical fiber network equipment, in particular to a clamping mechanism and an optical cable fiber distribution box, which comprise a unit, a box body and an access hole arranged on one side of the box body, the clamping unit comprises a fixing ring arranged in the connecting hole, a rotating assembly arranged on the fixing ring and an adjusting assembly arranged on the rotating assembly and matched with the fixing ring. The clamping mechanism provided by the utility model has the beneficial effects that the rotating assembly is matched with the adjusting assembly, and the clamping rod is sleeved with the silica gel sheath to clamp the optical cable, so that the quality problem of transmission signals of the optical cable is reduced, the dustproof effect can be achieved through mutual extrusion of the silica gel sheath, and the service life of the optical cable is prolonged. The connecting part of the main optical cable and the branch optical cable is placed in the cable management groove, and the limiting plate is matched, so that the connecting part is protected, the smoothness of the connecting part of the optical cable can be kept, and the optical fiber is prevented from being damaged due to excessive bending to a certain extent.
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Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber network equipment, in particular to a clamping mechanism and an optical cable fiber distribution box. Background Art

[0002] The fiber optic cable splitter box plays a key role in the fiber optic communication system. It is responsible for connecting, distributing and managing optical fibers and optical signals. Through the fiber optic cable splitter box, the access, distribution and connection of optical cables can be achieved, thereby ensuring the stable operation and effective management of the optical fiber network. In other words, the fiber optic cable splitter box is an indispensable component of the fiber optic communication system. It plays a hub role in connecting and managing optical signals, providing the necessary support and guarantee for the entire system.

[0003] When the optical cable distribution box is connected to the optical cable, the optical cable needs to be fixed in the optical cable distribution box and then the fiber distribution is performed. The existing fixing method is to clamp it with a U-shaped wire clamp and then fix it with bolts. The fixing method is relatively simple and is easily affected by external vibration or impact, resulting in loose fixation of the optical cable. In addition, the bolts are easily affected by environmental factors, such as oxidation and loosening. After the optical signal of the trunk optical cable is distributed to different branch optical cables through the straight-fusible plate, the connection is prone to breakage and needs to be protected. Bending of the connection part will affect the transmission quality of the optical signal. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problem that the optical cable fixing method mentioned above or in the prior art is unstable, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a clamping mechanism.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an installation unit, including a box body and an access hole arranged on one side of the box body; a clamping unit, including a fixed ring arranged in the access hole, a rotating component arranged on the fixed ring, and an adjustment component arranged on the rotating component and cooperating with the fixed ring.

[0008] As a preferred solution of the clamping mechanism of the utility model, wherein: the rotating assembly includes a sliding groove arranged in the fixed ring, a connecting arc plate arranged in the sliding groove, a rotating ring arranged on one side of the connecting arc plate, a connecting ring arranged on the other side of the connecting arc plate, and a fixing part arranged on the connecting ring; the fixing part and the connecting ring cooperate with each other.

[0009] As a preferred solution of the clamping mechanism described in the utility model, wherein: the fixing part includes a limit groove arranged on the connecting ring, a threaded groove arranged on the inner wall of the box body, a threaded cap arranged in the threaded groove, and a limit block arranged on the inner wall of the threaded cap; the limit block and the limit groove cooperate with each other.

[0010] As a preferred solution of the clamping mechanism of the utility model, wherein: the adjustment component includes a guide ring arranged on the rotating ring and the connecting ring, a guide part arranged on the guide ring, a positioning ring arranged on the fixed ring, and a positioning part arranged on the positioning ring; the guide part and the positioning part cooperate with each other.

[0011] As a preferred solution of the clamping mechanism of the utility model, the guide portion includes a guide groove arranged on the guide ring, a connecting rod arranged in the guide groove, and a clamping piece arranged on the connecting rod.

[0012] As a preferred solution of the clamping mechanism of the utility model, the clamping member includes a connecting block arranged on the connecting rod, a clamping rod arranged on the connecting block, and a rubber sheath arranged outside the clamping rod.

[0013] As a preferred solution of the clamping mechanism of the utility model, the positioning portion includes a movable groove arranged on the positioning ring and a rotating rod arranged on the positioning ring; the rotating rod passes through the connecting block and is fixedly connected to the inside of the connecting block.

[0014] The clamping mechanism of the utility model has the beneficial effects of: by coordinating the rotating component with the adjusting component, the optical cable is clamped by sleeve-connecting the silicone sheath with the clamping rod, thereby reducing the quality problem of the optical cable transmission signal, and the mutual squeezing of the silicone sheath can also achieve a dustproof effect.

[0015] In actual use, there is still a problem that the connection between the trunk optical cable and the branch optical cables is prone to breakage after the optical signal is distributed to different branch optical cables, which requires protection.

[0016] In order to solve the above technical problems, the utility model also provides the following technical solutions: the wire management unit includes a straight melting plate arranged in the box body and a limit assembly arranged in the straight melting plate.

[0017] As a preferred solution of the optical cable fiber distribution box of the utility model, the limiting assembly includes a fixing plate arranged in the straight melting plate, a clamp arranged on the fixing plate, a winding arc plate arranged in the straight melting plate, and a sliding part arranged on the fixing plate.

[0018] As a preferred solution of the optical cable fiber distribution box of the utility model, the sliding part includes a wire management groove arranged on the other side of the fixed plate, a slide groove arranged on the other side of the fixed plate, a slider arranged in the slide groove, a limit plate arranged on the slider, and a spring arranged in the slide groove.

[0019] The beneficial effects of the utility model are as follows: through the limiting component, the connecting parts of the trunk optical cable and the branch optical cable are placed in the cable management groove, and then with the limiting plate, the connecting parts are protected. The design of the limiting component can keep the connecting parts of the optical cable flat, and to a certain extent, damage to the optical fiber due to excessive bending can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the clamping mechanism of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall structure of the clamping mechanism of the utility model.

[0023] Figure 3 It is a schematic diagram of the disassembly of the rotating assembly of the clamping mechanism of the utility model.

[0024] Figure 4 It is a schematic cross-sectional view of the overall structure of the clamping mechanism of the utility model.

[0025] Figure 5 It is a schematic diagram of the partial structure of the rotating assembly of the clamping mechanism of the utility model.

[0026] Figure 6 It is a schematic diagram of the partial structure of the adjusting component of the clamping mechanism of the utility model.

[0027] Figure 7 It is a schematic plan view of the structure of the adjustment component of the clamping mechanism of the utility model.

[0028] Figure 8The utility model is a schematic diagram of the overall structure of the optical cable fiber distribution box.

[0029] Fig. 9 It is a schematic cross-sectional view of the limit assembly of the optical cable fiber distribution box of the utility model.

[0030] Fig.10 for Fig. 9 Enlarged schematic diagram at point A in the middle. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example 1

[0036] Reference Figures 1 to 7 , is the first embodiment of the utility model, which provides a clamping mechanism that can achieve a more stable clamping effect on the optical cable and avoid damage inside the optical cable, including, a unit, including a box body 101, an access hole 102 arranged on one side of the box body 101;

[0037] The clamping unit 200 includes a fixing ring 201 disposed in the access hole 102 , a rotating assembly 202 disposed on the fixing ring 201 , and an adjusting assembly 203 disposed on the rotating assembly 202 and cooperating with the fixing ring 201 .

[0038] Specifically, the rotating assembly 202 includes a sliding groove 202a arranged in the fixed ring 201, a connecting arc plate 202b arranged in the sliding groove 202a, a rotating ring 202c arranged on one side of the connecting arc plate 202b, a connecting ring 202d arranged on the other side of the connecting arc plate 202b, and a fixed portion 202e arranged on the connecting ring 202d; the fixed portion 202e and the connecting ring 202d cooperate with each other, the fixed ring 201 is fixedly arranged on the inner wall of the access hole 102, six groups of sliding grooves 202a are opened inside the fixed ring 201, the sliding groove 202a is in an arc shape, the sliding groove 202a is slidably connected to a connecting arc plate 202b inside, one side of the connecting arc plate 202b is fixedly connected to the rotating ring 202c, and the outer wall of the rotating ring 202c is opened with a plurality of semicircular grooves. By designing the semicircular grooves, the friction force when rotating the practical rotating ring 202c can be increased, and the other side is fixedly connected to the connecting ring 202d.

[0039] Further, the adjustment assembly 203 includes a guide ring 203a provided on the rotating ring 202c and the connecting ring 202d, a guide portion 203b provided on the guide ring 203a, a positioning ring 203c provided on the fixing ring 201, and a positioning portion 203d provided on the positioning ring 203c;

[0040] The guiding portion 203b and the positioning portion 203d cooperate with each other. The inner walls of the rotating ring 202c and the connecting ring 202d are both provided with a guiding ring 203a. Six groups of guiding grooves 203b-1 are provided on the surface of the guiding ring 203a. The guiding grooves 203b-1 are arc-shaped grooves. A connecting rod 203b-2 is movably connected between the two guiding grooves 203b-1. The inner wall of the fixed ring 201 is fixedly connected to the positioning ring 203c. Six groups of movable grooves 203d-1 are provided on the surface of the positioning ring 203c. The movable grooves 203d-1 correspond to the guiding grooves 203b-1 one by one. A rotating rod 203d-2 is fixedly provided between the two movable grooves 203d-1 on the positioning ring 203c. Six rotating rods 203d-2 are provided. The rotating rod 203d-2 and the connecting rod 203b-2 In one-to-one correspondence, the rotating rod 203d-2 and the connecting rod 203b-2 are fixedly connected to a connecting block 203b-31. The rotating rod 203d-2 is located at the central position of the connecting block 203b-31, and the connecting rod 203b-2 is arranged near the outer side of the connecting block 203b-31. The positioning ring 203c is located between the two guide rings 203a, which makes it possible to have two connecting blocks 203b-31. The inner walls of the two connecting blocks 203b-31 are jointly fixedly installed with a clamping rod 203b-32, and a rubber sheath 203b-33 is arranged on the outer side of the clamping rod. The rubber sheath 203b-33 is made of rubber material, has good ductility and resilience, and can return to its original shape after being subjected to external force. The six groups of clamping rods 203b-32 form a circular ring that can be enlarged or reduced.

[0041] When in use, before connecting the optical cable, first rotate the rotating ring 202c counterclockwise, and the rotating ring 202c drives the connecting ring 202d to rotate through the connecting arc plate 202b. At this time, the rotating ring 202c and the connecting ring 202d simultaneously drive the two inner guide rings 203a to rotate. The guide ring 203a rotates counterclockwise, and the inner wall of the guide groove 203b-1 on its surface will apply a counterclockwise thrust to the connecting rod 203b-2 inside it. The connecting block 203b-31 moves under the push of the connecting rod 203b-2, and then the connecting block 203b-31 is pushed by the two guide rings 203a. 1 rotates counterclockwise with the rotating rod 203d-2 as the center. When the rotating ring 202c can no longer rotate counterclockwise, the left side of the connecting arc plate 202b will contact the left side of the inner wall of the sliding groove 202a. At this time, the ring formed by the six groups of clamping rods 203b-32 expands, allowing the optical cable to enter and exit freely. At this time, the optical cable can be inserted into the rotating ring 202c from the outside of the fiber distribution box, pass through the ring formed by the six groups of clamping rods 203b-32, and enter the straight melting plate 301 to perform fiber distribution. After completion, the optical cable in the access hole 102 can be fixed to prevent it from shaking. The needle rotates the rotating ring 202c, and the rotating ring 202c drives the connecting ring 202d to rotate clockwise through the connecting arc plate 202b. At this time, the rotating ring 202c and the connecting ring 202d simultaneously drive the two inner guide rings 203a to rotate clockwise, and the inner wall of the guide groove 203b-1 on its surface will apply a clockwise thrust to the connecting rod 203b-2 inside it. The connecting block 203b-31 moves under the push of the connecting rod 203b-2, and then under the push of the two guide rings 203a, the connecting block 203b-31 rotates clockwise with the rotating rod 203d-2 as the center. When the moving ring 202c can no longer rotate clockwise, the right side of the connecting arc plate 202b will contact the right side of the inner wall of the sliding groove 202a. At this time, the circular ring formed by the six groups of clamping rods 203b-32 will shrink and exert squeezing force on the optical cable, thereby achieving the effect of fixing the optical cable. This prevents the bending of the optical fiber in the optical cable from affecting the signal transmission. The rubber sheaths 203b-33 on the outside of the six groups of clamping rods 203b-32 are squeezed and fitted together, which prevents dust from entering the box body 101 from the access port during the placement process after the optical cable fiber distribution box is installed, thereby affecting the operation of the branch optical cable.

[0042] Example 2

[0043] Reference Figures 1 to 7, which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a rotating component 202 of the clamping mechanism, which solves the problem of how to fix the clamping rod 203b-32 for a long time after clamping the optical cable. The fixing part 202e includes a limiting groove 202e-1 arranged on the connecting ring 202d, a threaded groove 202e-2 arranged on the inner wall of the box body 101, a threaded cap 202e-3 arranged in the threaded groove 202e-2, and a limiting block 202e-4 arranged on the inner wall of the threaded cap 202e-3; the limiting block 202e-4 and the limiting groove 202e-1 cooperate with each other.

[0044] Furthermore, a threaded groove 202e-2 is provided on the inner wall of the box body 101 on the outer side of the access hole 102, and a threaded cap 202e-3 is threadedly connected to the threaded groove 202e-2. The threaded cap 202e-3 is sleeved on the outside of the connecting ring 202d, and a limit block 202e-4 is provided at the bottom of the inner wall of the threaded cap 202e-3. The limit block 202e-4 is a curved and inclined coil, and a limit groove 202e-1 is provided on one end surface of the connecting ring 202d, and the fiber groove and the limit block 202e-4 are adapted to each other.

[0045] When in use, after the six groups of clamping rods 203b-32 have clamped the optical cable, it is necessary to fix the rotating ring 202c at this time to prevent it from rotating, thereby reducing the clamping force of the clamping rod 203b-32 on the optical cable and causing the optical cable to shake. We can turn the threaded cap 202e-3 clockwise to thread it into the thread groove 202e-2. Keep turning the threaded cap 202e-3, and one end of the limit block 202e-4 on the inner wall of the threaded cap 202e-3 will contact the limit groove 202e-1 on one end surface of the connecting ring 202d. As the threaded cap 202e-3 continues to rotate, Rotate, the limit block 202e-4 and the limit groove 202e-1 are completely fitted, and the threaded cap 202e-3 and the connecting plate are limited by the limit block 202e-4 and the limit groove 202e-1, forming a mutually conflicting relationship. At this time, the rotating ring 202c cannot be rotated counterclockwise, which achieves the effect of fixing the rotating ring 202c and improves the stability of clamping the optical cable. Conversely, reverse the threaded cap 202e-3, so that the limit block 202e-4 is separated from the limit groove 202e-1. At this time, the connecting ring 202d can be rotated without the resistance of the limit block 202e-4.

[0046] Example 3

[0047] Reference Figures 8 to 10, which is the third embodiment of the utility model, and is different from the previous embodiment in that this embodiment provides an optical cable fiber distribution box, which solves the problem that after branching the optical cable, the connection part is bent, which affects the quality of optical signal transmission and is prone to breakage, and includes the clamping mechanism in the above embodiment, including a wire management unit 300, including a straight melting plate 301 arranged in the box body 101, and a limit assembly 302 arranged in the straight melting plate 301. The limit assembly 302 includes a fixing plate 302a arranged in the straight melting plate 301, a clamp 302b arranged on the fixing plate 302a, a winding arc plate 302c arranged in the straight melting plate 301, and a sliding part 302d arranged on the fixing plate 302a. The sliding portion 302d includes a wire management groove 302d-1 arranged on the other side of the fixed plate 302a, a slide groove 302d-2 arranged on the other side of the fixed plate 302a, a slider 302d-3 arranged in the slide groove 302d-2, a limiting plate 302d-4 arranged on the slider 302d-3, and a spring 302d-5 arranged in the slide groove 302d-2.

[0048] Specifically, the outer wall of the straight melt disk 301 of the straight melt disk 301 is provided with two circular holes for connecting the optical cable to the straight melt disk 301, and a winding arc plate 302c is provided near the front and rear positions inside the straight melt disk 301. After the optical cable is connected to the straight melt disk 301, fiber splitting is performed to distribute the trunk optical cable to multiple branch optical cables, and then the branch optical cables are wound around the two winding arc plates 302c to wire the branch optical cables. A fixing plate 302a is provided on the inner wall of the straight melt disk 301 between the two winding arc plates 302c, and a plurality of clamps 302b are provided near the front and rear positions on one side of the fixing plate 302a. The clamp 302b is in a "U" shape and is used for wiring the branch optical cables and is used in conjunction with the winding arc plate 302c. Five wire management grooves 302d-1 are provided on the other side of the fixing plate 302a, and the five wire management grooves 302d-1 are evenly spaced. The cable management groove 302d-1 is distributed and is cylindrical, which is used to store branch cables inside it. The other side surface of the fixed plate 302a is located directly above the cable management groove 302d-1 and is provided with a slide groove 302d-2. A slider 302d-3 is slidably connected in the slide groove 302d-2. The upper end of the slider 302d-3 is fixedly connected with a spring 302d-5 near the front and rear positions, the other end of the spring 302d-5 is fixedly connected to the upper end of the inner wall of the sliding groove 202a, and the other side of the slider 302d-3 is fixedly connected to a limiting plate 302d-4. The lower part of the limiting plate 302d-4 is semicircular near one corner of one side. When the lower part of the limiting block 202e-4 is in contact with the cable management groove 302d-1, it forms a complete cylindrical groove. A rectangular groove is provided on the other side surface of the limiting plate 302d-4 to increase the friction force of moving the limiting block 202e-4.

[0049] When in use, by vertically pushing the limit block 202e-4 upward, the cable management slot 302d-1 forms an opening for taking out and storing the branch optical cable. This design can improve the protection of the branch optical cable. By placing the branch optical cable connection part in the cable management slot 302d-1, bending of the connection part can be avoided.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamping mechanism, characterized in that: include, The installation unit (100) comprises a box body (101) and an access hole (102) arranged on one side of the box body (101); The clamping unit (200) comprises a fixing ring (201) arranged in the access hole (102), a rotating assembly (202) arranged on the fixing ring (201), and an adjusting assembly (203) arranged on the rotating assembly (202) and cooperating with the fixing ring (201).

2. The clamping mechanism according to claim 1, characterized in that: The rotating assembly (202) comprises a sliding groove (202a) arranged in the fixing ring (201), a connecting arc plate (202b) arranged in the sliding groove (202a), a rotating ring (202c) arranged on one side of the connecting arc plate (202b), a connecting ring (202d) arranged on the other side of the connecting arc plate (202b), and a fixing portion (202e) arranged on the connecting ring (202d); The fixing portion (202e) and the connecting ring (202d) cooperate with each other.

3. The clamping mechanism according to claim 2, characterized in that: The fixing portion (202e) comprises a limiting groove (202e-1) arranged on the connecting ring (202d), a thread groove (202e-2) arranged on the inner wall of the box body (101), a thread cap (202e-3) arranged in the thread groove (202e-2), and a limiting block (202e-4) arranged on the inner wall of the thread cap (202e-3); The limiting block (202e-4) and the limiting groove (202e-1) cooperate with each other.

4. The clamping mechanism according to claim 3, characterized in that: The adjustment assembly (203) comprises a guide ring (203a) arranged on the rotating ring (202c) and the connecting ring (202d), a guide portion (203b) arranged on the guide ring (203a), a positioning ring (203c) arranged on the fixing ring (201), and a positioning portion (203d) arranged on the positioning ring (203c); The guide portion (203b) and the positioning portion (203d) cooperate with each other.

5. The clamping mechanism according to claim 4, characterized in that: The guide portion (203b) comprises a guide groove (203b-1) arranged on the guide ring (203a), a connecting rod (203b-2) arranged in the guide groove (203b-1), and a clamping piece (203b-3) arranged on the connecting rod (203b-2).

6. The clamping mechanism according to claim 5, characterized in that: The clamping member (203b-3) comprises a connecting block (203b-31) arranged on the connecting rod (203b-2), a clamping rod (203b-32) arranged on the connecting block (203b-31), and a rubber sheath (203b-33) arranged outside the clamping rod (203b-32).

7. The clamping mechanism according to claim 6, characterized in that: The positioning portion (203d) comprises a movable groove (203d-1) arranged on the positioning ring (203c) and a rotating rod (203d-2) arranged on the positioning ring (203c); The rotating rod (203d-2) passes through the connecting block (203b-31) and is fixedly connected inside the connecting block (203b-31).

8. An optical cable fiber distribution box, comprising the clamping mechanism according to any one of claims 1 to 7, characterized in that: as well as, The wire management unit (300) comprises a straight melting plate (301) arranged in the box body (101) and a position limiting component (302) arranged in the straight melting plate (301).

9. The optical cable distribution box according to claim 8, characterized in that: The limiting assembly (302) comprises a fixing plate (302a) arranged in the straight melting disk (301), a clamp (302b) arranged on the fixing plate (302a), a winding arc plate (302c) arranged in the straight melting disk (301), and a sliding portion (302d) arranged on the fixing plate (302a).

10. The optical cable distribution box according to claim 9, characterized in that: The sliding part (302d) includes a wire management groove (302d-1) arranged on the other side of the fixed plate (302a), a slide groove (302d-2) arranged on the other side of the fixed plate (302a), a slider (302d-3) arranged in the slide groove (302d-2), a limit plate (302d-4) arranged on the slider (302d-3), and a spring (302d-5) arranged in the slide groove (302d-2).