Partitionable multifunctional optical cable distribution box

Abstract

The invention relates to the technical field of communication equipment, in particular to a divisible multifunctional optical cable distribution box which comprises a bottom box, a top cover is hinged to one end of the bottom box, the interior of the bottom box is hollow, and protective shells are fixedly connected to the inner walls of the two sides of the bottom box. Two arc-shaped gear rings are fixedly connected to the outer wall of the side, close to the bottom box, of the top cover, the two arc-shaped gear rings penetrate through one end of the bottom box and are slidably connected to the interior of the protective shell, and two stretching mechanisms are arranged in the bottom box. The top cover is turned over, the arc-shaped gear ring rotates synchronously and drives the stretching mechanism, and the distance between the base plate and the inner wall of the bottom box is gradually increased, so that the distance between a basic part at the top of the base plate and an operator is reduced, the maintenance or adjustment of the base plate is facilitated, and the efficiency is improved; strong airflow can flow into the bottom box, dust is automatically cleaned, and the influence of the dust on module operation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, in particular to a partitionable multifunctional optical cable fiber distribution box. Background Art

[0002] The optical cable splitter box is a key device used to connect, distribute and protect optical cables in the optical fiber network. It has the functions of fixing optical cables, fusing optical fibers, protecting joints and adjusting fibers. It adopts a fully sealed dustproof, waterproof and shockproof design. It is suitable for various environments such as outdoors, in corridors or indoors. It ensures the stability and reliability of optical fiber transmission and is an important part of building an efficient optical fiber communication network.

[0003] As stated in the Chinese patent with publication number: CN202305945U, it proposes an optical cable splitter box, including an optical cable splitter box body, in which a distribution optical cable fixture device, an optical fiber fusion splicing device, an optical fiber connection distribution device, and an introduction optical cable fixture device are sequentially connected from left to right through optical cables in the optical cable splitter box body, and the distribution optical cable fixture device and the introduction optical cable fixture device are respectively arranged on the left and right walls of the optical cable splitter box body. This structure is used for the wiring and distribution equipment of the optical fiber loop terminal, which can provide optical fiber fusion, terminal, wiring and distribution functions, ensuring that each user can connect to one optical fiber introduction, and the wiring in the optical cable splitter box is clear, ensuring on-site construction efficiency. The above documents have given the optical cable splitter box a partitioning feature, which can be regarded as multiple modules, and each module can independently realize specific functions, such as optical fiber fusion splicing, optical fiber distribution, optical cable fixing, etc.

[0004] However, since these modules are usually located deep inside the fiber splitter box, this location brings trouble to maintenance work, is not conducive to inspection or adjustment, and reduces efficiency. Frequent maintenance work will increase the time that the inside of the fiber splitter box is exposed to the working environment. It is difficult to avoid external dust adhering to the inside of the fiber splitter box, which affects the operation of the internal modules. For this reason, we propose a partitionable multifunctional optical cable splitter box. Summary of the invention

[0005] The object of the present invention is to provide a partitionable multifunctional optical cable fiber distribution box to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a partitionable multifunctional optical cable fiber distribution box, comprising a bottom box, a top cover is hingedly connected to one end of the bottom box, the interior of the bottom box is hollow, and protective shells are fixedly connected to the inner walls on both sides of the bottom box, and two arc-shaped gear rings are fixedly connected to the outer wall of the top cover on one side close to the bottom box, and the two arc-shaped gear rings pass through one end of the bottom box and are slidably connected to the interior of the protective shell, and two extension mechanisms are arranged inside the bottom box, and the two extension mechanisms include a gear 1 and two driving racks, and the arc-shaped gear rings are meshed with the gear 1, and a through-shaped fan-shaped opening is opened on the top of the top cover, and an extrusion plate is fixedly connected between the inner walls on both sides of the fan-shaped opening, and an air bag is fixedly connected to the outer wall of the bottom box on one side close to the top cover, and the air bag is located inside the fan-shaped opening and is movably connected to one end of the extrusion plate, and a plurality of cleaning nozzles are arranged at one end of the air bag, and the plurality of cleaning nozzles pass through one side of the bottom box and are located on the inner wall of the bottom box.

[0007] Preferably, the two extension mechanisms include the same mechanism features, and the two are only different in setting positions, and the setting positions of the two extension mechanisms are symmetrically distributed.

[0008] Preferably, two fan-shaped grooves symmetrically positioned to each other are provided on the top of the top cover, the interiors of the two fan-shaped grooves are not connected to the interiors of the fan-shaped openings, the arc-shaped gear ring is slidably connected to the interiors of the fan-shaped grooves, the protective shell as a whole is hollow inside and has a round cake shape without a top surface, one end of the gear one is rotatably connected to an inner wall of one side of the protective shell, the outer wall of the rotating shaft of the gear one is transmission-connected with a connecting belt, one end of the connecting belt is transmission-connected with gear two, and one end of the rotating shaft of the gear two is rotatably connected to one end of the inner wall of the bottom box.

[0009] Preferably, the two driving racks are slidably connected to the bottom end of the inner wall of the bottom box, and the outer wall of the gear two is meshed with the top of the driving rack closer to the top cover, and one end of the driving rack is fixedly connected to the lower rack, and one end of the driving rack farther from the top cover is fixedly connected to the upper rack, and the same gear three is meshed between the upper rack and the lower rack, and one end of the rotating shaft of the gear three is rotatably connected to one end of the inner wall of the bottom box. The upper rack and the lower rack have the same appearance features and only have different setting positions. The length of the gear part at the bottom end of the upper rack occupies one third of its overall length, and the gear part is located in the middle of the bottom end of the upper rack, one end of the upper rack is slidably connected to the inside of the driving rack closer to the top cover, and one end of the lower rack is slidably connected to the inside of the driving rack farther from the top cover.

[0010] Preferably, one end of each of the driving racks is rotatably connected to a support rod. Two support rods close to each other are rotatably connected, and the rotation connection point is located in the middle thereof. Support rods are fixedly connected between the two support rods on the inner side and between the two support rods on the outer side. The tops of the two support rods are movably connected to the same substrate. A fixing frame is provided at the top end of the substrate. Two convex blocks that are symmetrically positioned and away from each other are fixedly connected to the outer walls on both sides of the substrate. Two vertically symmetrically positioned and away from each other vertical chutes are provided on the inner walls on both sides of the bottom box. The convex blocks are slidably connected inside the vertical chutes.

[0011] Preferably, the cross-section of the sector-shaped opening is a sector-shaped ring, and its cross-sectional area approximately occupies one-fourth of the cross-sectional area of the protective shell. Protective plates with both sides away from each other are fixedly connected to both ends of the inner wall of the airbag. A plurality of equally spaced arc-shaped springs are fixedly connected between the two protective plates located on the same circumference. The inside of each cleaning nozzle is in communication with the inside of the airbag. The cross-section of the cleaning nozzle located inside the bottom box is in a U shape. Two symmetrically distributed strengthening blocks are fixedly connected to one end of the inside of the cleaning nozzle. Three groups of air-permeable openings are provided on one outer wall of the cleaning nozzle. Each group of air-permeable openings includes a plurality of equally spaced air outlets. The cross-sectional area of the vertically arranged air outlets is smaller than the cross-sectional area of the horizontally arranged air outlets.

[0012] Preferably, two symmetrically distributed slide rail groups are fixedly connected to the bottom end of the inner wall of the bottom box. Each of the two slide rail groups includes two auxiliary slideways with a spacing distance. The bottom end of each auxiliary slideway is fixedly connected to the bottom end of the inner wall of the bottom box. The bottom ends of the two driving racks in the same extension mechanism are slidably connected to the outer walls of the adjacent two auxiliary slideways. The bottom end of the lower rack is slidably connected to the outer walls of the two adjacent auxiliary slideways. A storage shell with a U-shaped cross-section is fixedly connected to the bottom end of the inner wall of the bottom box. The support rod can be completely stored inside the storage shell. The bottom end of the substrate and one end of the storage shell can be movably connected. The other end of the rotating shaft of the second gear is rotatably connected to the inner wall of the storage shell.

[0013] Preferably, magnet blocks are provided at one ends of the bottom box and the top cover, and the two magnet blocks are arranged with opposite-sex attraction.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes a partitionable multifunctional optical cable fiber distribution box, which flips open the top cover. During this process, the arc-shaped gear ring rotates synchronously and drives the extension mechanism. The two driving racks are displaced toward each other at the same time. Under the connection of the support rod and the support rod, the distance between the base plate and the inner wall of the bottom box is gradually increased to reduce the distance between the basic components on the top of the base plate and the operators, which is more conducive to the inspection or adjustment of the base plate and improves efficiency. In addition, the flipping process of the top cover will drive the airbag to be gradually compressed, and a strong airflow will rush into the inside of the bottom box, automatically cleaning the dust and reducing the impact of dust on the operation of the module. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 This is a schematic diagram of the overall structure of the optical cable fiber distribution box in maintenance status; Figure 2 It is an overall schematic diagram of the internal structure of the bottom box of the present invention; Figure 3 For the present invention Figure 2 An enlarged schematic diagram of the overall structure at point A; Figure 4 For the present invention Figure 2 An enlarged schematic diagram of the overall structure at B; Figure 5 For the present invention Figure 2 An enlarged schematic diagram of the overall structure at point C; Figure 6 It is a schematic diagram of the structure of the cleaning nozzle of the present invention; Figure 7 This is a schematic diagram of the overall cross-sectional structure of the optical cable fiber distribution box.

[0015] In the figure: 1. bottom box; 2. top cover; 3. arc-shaped gear ring; 4. protective shell; 5. gear one; 6. connecting belt; 7. gear two; 8. storage shell; 9. driving rack; 10. upper rack; 11. gear three; 12. lower rack; 13. auxiliary slide; 14. support rod; 15. support rod; 16. base plate; 17. fan-shaped opening; 18. air bag; 19. extrusion plate; 20. arc-shaped spring; 21. protective plate; 22. cleaning nozzle; 23. air outlet; 24. reinforcement block; 25. fixing frame; 26. bump; 27. magnet block. DETAILED DESCRIPTION

[0016] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] For example, see Figure 1 - Figure 6 The present invention provides a technical solution: a partitionable multifunctional optical cable fiber distribution box, comprising a bottom box 1, one end of the bottom box 1 is hinged with a top cover 2, the interior of the bottom box 1 is hollow, both sides of the inner wall of the bottom box 1 are fixedly connected with a protective shell 4, the top cover 2 is close to the outer wall of the bottom box 1 and is fixedly connected with two arc-shaped gear rings 3, the two arc-shaped gear rings 3 pass through one end of the bottom box 1 and are slidably connected to the inside of the protective shell 4, the inside of the bottom box 1 is provided with two extension mechanisms, the two extension mechanisms include a gear 5 and Two driving racks 9, an arc-shaped ring gear 3 and a gear 5 are meshed with each other. A through-shaped fan-shaped opening 17 is opened on the top of the top cover 2. An extrusion plate 19 is fixedly connected between the inner walls on both sides of the fan-shaped opening 17. An airbag 18 is fixedly connected to the outer wall of the bottom box 1 on one side close to the top cover 2. The airbag 18 is located inside the fan-shaped opening 17 and is movably connected to one end of the extrusion plate 19. A plurality of cleaning nozzles 22 are arranged at one end of the airbag 18. The plurality of cleaning nozzles 22 all pass through one side of the bottom box 1 and are located on the inner wall of the bottom box 1. The top cover 2 is flipped open. During this process, the arc-shaped gear ring 3 rotates synchronously and drives the extension mechanism. The two driving racks 9 move toward each other at the same time. Under the connection of the support rod 14 and the support rod 15, the distance between the base plate 16 and the inner wall of the bottom box 1 is gradually increased to reduce the distance between the basic components on the top of the base plate 16 and the operator, which is more conducive to its inspection or adjustment and improves efficiency. In addition, the flipping process of the top cover 2 will drive the airbag 18 to be gradually compressed, and a strong airflow will rush into the inside of the bottom box 1 to automatically clean the dust and reduce the impact of dust on the operation of the module.

[0018] For example 2, please refer to Figure 2 , 3, 4, 5 and 7, on the basis of the first embodiment, the mechanism features included in the two extension mechanisms are the same, and the only difference between the two is the setting position. The setting positions of the two extension mechanisms are symmetrically distributed, and the top of the top cover 2 is provided with two symmetrical fan-shaped grooves 28, and the interiors of the two fan-shaped grooves 28 are not connected to the interior of the fan-shaped opening 17, and the arc-shaped gear ring 3 is slidably connected to the interior of the fan-shaped groove 28. The protective shell 4 is hollow inside and has a round cake shape without a top surface. One end of the gear 5 is rotatably connected to the inner wall of one side of the protective shell 4, and the outer wall of the rotating shaft of the gear 5 is driven by the transmission. A connecting belt 6 is connected, one end of the connecting belt 6 is transmission-connected to a gear 2 7, one end of the rotating shaft of the gear 2 7 is rotationally connected to one end of the inner wall of the bottom box 1, and two driving racks 9 are slidably connected to the bottom end of the inner wall of the bottom box 1, and the outer wall of the gear 2 7 is meshed with the top of the driving rack 9 closer to the top cover 2, one end of this driving rack 9 is fixedly connected to a lower rack 12, and one end of the driving rack 9 farther from the top cover 2 is fixedly connected to an upper rack 10, and the upper rack 10 and the lower rack 12 are meshed with the same gear 3 11, and one end of the rotating shaft of the gear 3 11 rotates Connected to one end of the inner wall of the bottom box 1, the upper rack 10 and the lower rack 12 have the same appearance features, and the only difference is the location of the two. The length of the gear part at the bottom end of the upper rack 10 accounts for one-third of its overall length, and the gear part is located in the middle of the bottom end of the upper rack 10. One end of the upper rack 10 is slidably connected to the inside of the driving rack 9 closer to the top cover 2, and one end of the lower rack 12 is slidably connected to the inside of the driving rack 9 farther from the top cover 2. One end of each driving rack 9 is rotatably connected to a support rod 14, and the two support rods 14 close to each other form a rotatable connection. The bottom box 1 has a fixed connection with the other side walls, and the rotation connection point is located in the middle thereof. A support rod 15 is fixedly connected between the two inner support rods 14 and between the two outer support rods 14. The tops of the two support rods 15 are movably connected with the same base plate 16. A fixing frame 25 is provided at the top of the base plate 16. Two symmetrical and mutually distant protrusions 26 are fixedly connected to the outer walls of the base plate 16. Two symmetrical and mutually distant vertical slide grooves are provided on the inner walls of the two sides of the bottom box 1. The protrusions 26 are slidably connected to the inside of the vertical slide grooves. A fixing frame 25 is provided at the top of the base plate 16.

[0019] In the initial state, the bottom box 1 and the top cover 2 are covered together. During the process of the top cover 2 moving away from the bottom box 1 and deflecting along the hinge, the synchronous rotation of the arc-shaped gear ring 3 will drive the first gear 5 meshing with it to rotate. Under the transmission connection of the connecting belt 6, the second gear 7 rotates at the same time and synchronously drives the lower rack 12 to operate. Under the meshing connection of the third gear 11, the upper rack 10 is displaced passively. The movement directions of the upper rack 10 and the lower rack 12 are opposite. One end of the upper rack 10 is inserted into the interior of the driving rack 9 closer to the top cover 2, and one end of the lower rack 12 is inserted into the interior of the driving rack 9 farther from the top cover 2. This process can improve the stability of the movement of the two driving racks 9 and limit the running directions of the two driving racks 9. They can only perform horizontal displacement. Through the arranged support rods 14 and support bars 15, as the distance between the two driving racks 9 shortens, the angle between two adjacent support rods 14 gradually decreases, and the distance between the two support bars 15 from the inner bottom end of the bottom box 1 increases. The distance between the two support bars 15 shortens like that of the two driving racks 9. Then, the substrate 16 is jacked up under the simultaneous action of the two support bars 15, and the distance between the substrate 16 and the operator decreases. The state where the top cover 2 is fully adjusted is Figure 1 consistent, and each module can be fully displayed, facilitating the maintenance operation and improving its efficiency.

[0020] Embodiment 3: On the basis of Embodiment 2, the cross-section of the fan-shaped opening 17 is a fan-shaped ring, and its cross-sectional area approximately occupies one-fourth of the cross-sectional area of the protective shell 4. Both ends of the inner wall of the airbag 18 are fixedly connected with protective plates 21 that are far away from each other on both sides. A plurality of equally spaced arc-shaped springs 20 are fixedly connected between the two protective plates 21 located on the same circumference. The interiors of the respective cleaning nozzles 22 are in communication with the interior of the airbag 18. The cross-section of the cleaning nozzle 22 located inside the bottom box 1 is in a U shape. Two symmetrically distributed strengthening blocks 24 are fixedly connected to the interior of one end of the cleaning nozzle 22. Three groups of air-permeable openings are provided on one outer wall of the cleaning nozzle 22. Each group of air-permeable openings includes a plurality of equally spaced air outlet openings 23. The cross-sectional area of the vertically arranged air outlet openings 23 is smaller than the cross-sectional area of the horizontally arranged air outlet openings 23. Magnet blocks 27 are provided at one ends of the bottom box 1 and the top cover 2, and the two magnet blocks 27 are arranged with opposite-sex attraction.

[0021] In the process that the top cover 2 moves away from the bottom box 1 and deflects along the hinge, the distance between the extrusion plate 19 and the airbag 18 gradually decreases, and then one end of the extrusion plate 19 contacts the airbag 18, and then the airbag 18 is compressed, the two protective plates 21 are compressed, and the gas inside the airbag 18 is discharged through each cleaning nozzle 22. Through the two reinforcing blocks 24, the cross-sectional area of ​​the airflow flow path is suddenly reduced, and the airflow intensity is improved. With the cooperation of the various air outlets 23, the air flow rate through the vertically arranged air outlets 23 is less than the air flow rate through the horizontally arranged air outlets 23, then the multi-directional and strong airflow will sweep the inner walls of the bottom box 1. It happens that at this time, the distance between the base plate 16 and the bottom end of the inner wall of the bottom box 1 is gradually increasing, which provides space for the discharge of dust and is more conducive to the continuous blowing of dust. When the top cover 2 is flipped to the position as shown in the attached manual Figure 1 In the same state, through the various magnet blocks 27, the magnet block 27 set on the top cover 2 and the magnet block 27 set on the bottom box 1 are attracted to each other, and the adsorption force generated by the two can always suppress each protective plate 21 to prevent the protective plate 21 from rebounding when the external force is removed, causing the top cover 2 to flip back and affect the maintenance work.

[0022] Embodiment 4, on the basis of embodiment 3, the bottom end of the inner wall of the base box 1 is fixedly connected with two groups of symmetrically distributed slide rail groups, and the two groups of slide rail groups include two auxiliary slides 13 with a spacing therebetween, and the bottom end of each auxiliary slide 13 is fixedly connected to the bottom end of the inner wall of the base box 1, and the bottom ends of the two driving racks 9 in the same extension mechanism are slidably connected to the outer walls of the two adjacent auxiliary slides 13, and the bottom end of the lower rack 12 is slidably connected to the outer walls of the two adjacent auxiliary slides 13, and the bottom end of the inner wall of the base box 1 is fixedly connected with a storage shell 8, and the cross-section of the storage shell 8 is in the shape of a U-shaped letter, and the support rod 14 can be completely stored in the interior of the storage shell 8, and the bottom end of the base plate 16 can be movably connected to one end of the storage shell 8, and the other end of the rotating shaft of the gear 2 7 is rotatably connected to the inner wall of the storage shell 8.

[0023] It should be noted here that the cross-section of the auxiliary slide 13 is semicircular. By setting up the slide rail group, the friction force overcome by the two driving racks 9 and the lower rack 12 during displacement can be reduced, thereby making the displacement of the two driving racks 9 smoother and the displacement process of the base plate 16 smoother, which is conducive to the rapid functioning of the extension mechanism and the efficient performance of maintenance operations.

[0024] In actual use, when the top cover 2 moves away from the bottom box 1 and deflects along the hinge, the synchronous rotation of the arc gear ring 3 will drive the gear 1 5 meshing with it to rotate. Under the transmission connection of the connecting belt 6, the gear 2 7 rotates at the same time and synchronously drives the lower rack 12 to operate. Under the meshing connection of the gear 3 11, the upper rack 10 is passively displaced. The movement directions of the upper rack 10 and the lower rack 12 are opposite. One end of the upper rack 10 is inserted into the interior of one of the driving racks 9, and one end of the lower rack 12 is inserted into the interior of the other driving rack 9. This process can improve the two driving racks. The stability of the rack 9 during movement is improved, and the running direction of the two driving racks 9 is limited. The two can only move in the horizontal direction. Through the support rods 14 and support rods 15, as the distance between the two driving racks 9 is shortened, the angle between the two adjacent support rods 14 is gradually reduced, and the distance between the two support rods 15 and the bottom end of the bottom box 1 increases. The distance between the two support rods 15 is shortened like the two driving racks 9. Then, the base plate 16 is simultaneously acted upon by the two support rods 15, and is lifted up. The distance between the base plate 16 and the operator is reduced, and the state in which the top cover 2 is fully adjusted is as shown in the attached manual. Figure 1 The air bags 18 are arranged in a straight line, and the airflow is directed to the bottom of the bottom box 1. The bottom of the bottom box 1 is provided with a plurality of air outlets 23, and the air volume is increased by 20%.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A partitionable multifunctional optical cable fiber distribution box, comprising a bottom box (1), one end of the bottom box (1) being hingedly connected to a top cover (2), characterized in that: The interior of the bottom box (1) is hollow. The inner walls on both sides of the bottom box (1) are fixedly connected to protective shells (4). The outer wall of the top cover (2) close to the bottom box (1) is fixedly connected to two arc-shaped gear rings (3). The two arc-shaped gear rings (3) pass through one end of the bottom box (1) and are slidably connected to the inside of the protective shell (4). Two extension mechanisms are arranged inside the bottom box (1). The two extension mechanisms each include a gear one (5) and two driving racks (9). The arc-shaped gear ring (3) and the gear one (5) are meshed with each other. A through-shaped fan-shaped opening (17) is provided at the top of the top cover (2); an extrusion plate (19) is fixedly connected between the inner walls on both sides of the fan-shaped opening (17); an air bag (18) is fixedly connected to the outer wall of the bottom box (1) on one side close to the top cover (2); the air bag (18) is located inside the fan-shaped opening (17) and is movably connected to one end of the extrusion plate (19); a plurality of cleaning nozzles (22) are provided at one end of the air bag (18); the plurality of cleaning nozzles (22) all pass through one side of the bottom box (1) and are located on the inner wall of the bottom box (1).

2. The partitionable multifunctional optical cable fiber distribution box according to claim 1 is characterized in that: The two extension mechanisms have the same mechanism features, and the only difference between the two is the setting positions, which are symmetrically distributed.

3. The partitionable multifunctional optical cable fiber distribution box according to claim 1 is characterized in that: The top of the top cover (2) is provided with two symmetrical fan-shaped grooves (28), the interiors of the two fan-shaped grooves (28) are not connected to the interior of the fan-shaped opening (17), the arc-shaped gear ring (3) is slidably connected to the interior of the fan-shaped groove (28), the protective shell (4) as a whole is hollow inside and has no top surface. One end of the gear 1 (5) is rotatably connected to an inner wall of one side of the protective shell (4), the outer wall of the rotating shaft of the gear 1 (5) is transmission-connected to a connecting belt (6), one end of the connecting belt (6) is transmission-connected to a gear 2 (7), and one end of the rotating shaft of the gear 2 (7) is rotatably connected to one end of the inner wall of the bottom box (1).

4. The partitionable multifunctional optical cable fiber distribution box according to claim 3 is characterized in that: The two driving racks (9) are slidably connected to the bottom end of the inner wall of the bottom box (1), the outer wall of the gear 2 (7) is meshed with the top of the driving rack (9) closer to the top cover (2), one end of the driving rack (9) is fixedly connected to the lower rack (12), and one end of the driving rack (9) farther from the top cover (2) is fixedly connected to the upper rack (10), and the upper rack (10) and the lower rack (12) are meshed with the same gear 3 (11), and one end of the rotating shaft of the gear 3 (11) rotates Connected to one end of the inner wall of the bottom box (1), the upper rack (10) and the lower rack (12) have the same appearance features and are only arranged in different positions. The length of the gear portion at the bottom end of the upper rack (10) occupies one third of its overall length, and the gear portion is located in the middle of the bottom end of the upper rack (10). One end of the upper rack (10) is slidably connected to the inside of a driving rack (9) closer to the top cover (2), and one end of the lower rack (12) is slidably connected to the inside of a driving rack (9) farther from the top cover (2).

5. The partitionable multifunctional optical cable distribution box according to claim 4 is characterized in that: One end of each of the driving racks (9) is rotatably connected to a support rod (14). Two adjacent support rods (14) are rotatably connected to each other, and the rotation connection point is located in the middle of the support rods. Support rods (15) are fixedly connected between the two support rods (14) on the inner side and between the two support rods (14) on the outer side. The tops of the two support rods (15) are movably connected to the same substrate (16). A fixing frame (25) is provided at the top end of the substrate (16). Two convex blocks (26) that are symmetrically positioned and away from each other are fixedly connected to the outer walls on both sides of the substrate (16). Two vertically symmetrically positioned and away from each other vertical chutes are provided on the inner walls on both sides of the bottom box (1). The convex blocks (26) are slidably connected inside the vertical chutes.

6. The partitionable multifunctional optical cable fiber distribution box according to claim 1 is characterized in that: The cross-section of the sector-shaped opening (17) is a sector-shaped ring, and its cross-sectional area approximately occupies one-fourth of the cross-sectional area of the protective shell (4). Protective plates (21) that are away from each other on both sides are fixedly connected to both ends of the inner wall of the airbag (18). A plurality of equally spaced arc-shaped springs (20) are fixedly connected between the two protective plates (21) located on the same circumference. The interior of each cleaning nozzle (22) is in communication with the interior of the airbag (18). The cross-section of the cleaning nozzle (22) located inside the bottom box (1) is U-shaped. Two symmetrically distributed strengthening blocks (24) are fixedly connected to one end of the interior of the cleaning nozzle (22). Three groups of air-permeable openings are provided on one outer wall of the cleaning nozzle (22). Each group of air-permeable openings includes a plurality of equally spaced air outlets (23). The cross-sectional area of the vertically arranged air outlets (23) is smaller than the cross-sectional area of the horizontally arranged air outlets (23).

7. The partitionable multifunctional optical cable distribution box according to claim 5 is characterized in that: Two groups of symmetrically distributed slide rail groups are fixedly connected to the bottom end of the inner wall of the bottom box (1). Each of the two slide rail groups includes two auxiliary slideways (13) with a spacing distance. The bottom end of each auxiliary slideway (13) is fixedly connected to the bottom end of the inner wall of the bottom box (1). The bottom ends of the two driving racks (9) in the same extension mechanism are slidably connected to the outer walls of the two adjacent auxiliary slideways (13). The bottom end of the lower rack (12) is slidably connected to the outer walls of the two adjacent auxiliary slideways (13). A receiving shell (8) with a U-shaped cross-section is fixedly connected to the bottom end of the inner wall of the bottom box (1). The support rod (14) can be completely received inside the receiving shell (8). The bottom end of the substrate (16) is movably connected to one end of the receiving shell (8). The other end of the rotating shaft of the second gear (7) is rotatably connected to the inner wall of the receiving shell (8).

8. The partitionable multifunctional optical cable fiber distribution box according to claim 1 is characterized in that: Magnet blocks (27) are provided at one ends of the bottom box (1) and the top cover (2). The two magnet blocks (27) are arranged such that opposite poles attract each other.

Images