Optical cable distribution box with multidirectional limiting optical fiber outlet structure

Abstract

The invention discloses an optical cable distribution box with a multidirectional limiting optical fiber outlet structure, relates to the technical field of optical cable distribution, and aims to solve the problem of how to complete ordered distribution of optical fibers of different specifications. According to the utility model, the optical fiber connection distribution structure and the guide limiting structure are combined with the tail fiber connection limiting structure, so that ordered distribution of optical fibers can be realized, replacement and adaptive loading of a distribution interface can be carried out according to the specification of the optical fibers in the optical fiber distribution process, and ordered distribution can be ensured in the irregular installation and maintenance process; the aim of continuous and smooth wiring can be achieved by combining synchronous axial locking and radial locking with continuous steering adjustment and guide limiting, and the wiring complexity is reduced; and under the mutual matching use of the two parts, bidirectional locking in the ordered optical fiber distribution process is realized in a double-independent limiting mode, and the phenomenon of inconvenient maintenance caused by frequent conversion or reassembly of optical cable interfaces is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable fiber distribution, and in particular to an optical cable fiber distribution box with a multi-directional limiting optical fiber outlet structure. Background Art

[0002] The optical fiber splitter box is an interface device used to connect the trunk optical cable and the distribution optical cable outdoors, in corridors or indoors.

[0003] In the prior art, referring to the contents recorded in the optical fiber distribution box disclosed in patent publication number CN110389415A, it has the function of automatic limiting between the box door and the box body, and the box body with an upper door structure can prevent forgetting to lock the box cover; however, the main reason for the inability to lock the box door and the box body is human subjective factors; and in the actual use of the fiber distribution box, due to the irregular installation, relocation and other operations on the user side, it is necessary to frequently convert and reinstall the wiring optical cable interface; in this process, different operators' installers will also adopt different wiring methods, causing the optical fiber lines in the optical fiber distribution box to become more and more disorganized, which in turn causes inconvenience to the subsequent maintenance process.

[0004] In conjunction with the above, it should be noted that: for optical fiber distribution boxes, how to achieve orderly wiring of optical fibers of different specifications is an urgent problem to be solved. To this end, this application proposes a solution. Summary of the Invention

[0005] The object of the present invention is to provide an optical fiber distribution box with a multi-directional limiting optical fiber outlet structure, which is used to solve the problem of how to complete orderly wiring for optical fibers of different specifications; it can realize orderly wiring of optical fibers through the common setting of the optical fiber connection distribution structure and the guide limiting structure combined with the pigtail connection limiting structure, so that during the optical fiber wiring process, the wiring interface can be replaced and adapted according to the optical fiber specifications, ensuring that orderly wiring can also be achieved in irregular installation and maintenance processes; it can also achieve the purpose of continuous and smooth wiring and reduce the complexity of wiring through the simultaneous axial locking and radial locking combined with continuous steering adjustment and guide limiting; under the mutual use of the two, two-way locking in the orderly wiring process of optical fibers is realized in a dual independent limiting manner, effectively avoiding the maintenance inconvenience caused by frequent conversion or re-wiring of optical cable interfaces.

[0006] The objectives of the present invention can be achieved through the following technical solutions: an optical fiber distribution box with a multi-directional limiting optical fiber outlet structure, comprising a box body and a box cover, wherein a pigtail connection limiting structure is embedded in the middle of one end of the box body, and the pigtail connection limiting structure comprises a lower connecting frame and an upper connecting frame which are plugged into the box body and constitute a line outlet slot, the upper connecting frame is equipped with a symmetrically arranged pressure plate, and the lower connecting frame is rotatably equipped with a support rod vertically aligned with the pressure plate; an optical fiber connection distribution structure is rotatably provided on the side of the box body close to the box cover, and the optical fiber connection distribution structure comprises an insert plate and a mounting frame, a distribution frame is installed between a pair of the mounting frames, and at least three rotating card seats are rotatably provided in the distribution frame; a guide limiting structure is installed on the end of the insert plate away from the box cover, and the guide limiting structure comprises a lower top plug block and an upper cover sleeve which are socketed with each other, and a wire threading slot corresponding to the number of rotating card seats is jointly opened between the lower top plug block and the upper cover sleeve.

[0007] It is further configured as follows: elastic hoops are installed at intervals on the outer ring side of the box corresponding to the plug-in board, and a locking bolt seat is symmetrically installed on the side of the box close to the lower connecting frame. The elastic hoop and the locking bolt seat are used to fix the optical fiber between the rotating card seat and the threading card gap.

[0008] It is further configured that: a rack is installed on the lower side of the box corresponding to the plug-in board, and the rack is used to fix the optical splitter.

[0009] It is further configured as follows: a connecting belt is commonly installed on the inner side of a pair of pressing plates, an adjusting bolt is rotatably installed on the pressing plate and passes through the top of the upper connecting frame, and the ends of the pair of pressing plates are in contact with the upper middle sides of the two ends of the outlet card gap.

[0010] It is further configured as follows: a spring piece is installed at the lower end of the support rod, a rotating rod rotatably connected to the lower connecting frame is installed in the middle of the spring piece, and both ends of the spring piece abut against the middle of both ends of the outlet card slot.

[0011] It is further configured as follows: the lower top plug block and the upper cover sleeve are jointly installed with a connecting belt 2 at one end away from the plug plate, a spring is installed at the middle position of the bottom of the lower top plug block corresponding to the threading slot, an elastic ring is installed on the spring, and a clamp ring is installed at the top of the upper cover sleeve corresponding to the threading slot.

[0012] It is further configured as follows: both ends of the clamp ring extend to the lower side of the middle of the threading slot, both ends of the elastic ring extend to the upper side of the middle of the threading slot, and both ends of the elastic ring abut against the inner ring side of the clamp ring.

[0013] It is further configured as follows: a locking bolt is rotatably installed in the middle of the upper cover sleeve corresponding to the adjacent threading slot, and the locking bolt is threadedly connected to the lower top plug block.

[0014] It is further configured as follows: a lock body is installed on the ends of the box body and the box cover away from the hinge, and the box body is embedded with wire entry hole plates near both sides of the lower connecting frame.

[0015] The present invention has the following beneficial effects: 1. The present invention aims to solve the problem of how to complete orderly wiring of optical fibers of different specifications. It can realize orderly wiring of optical fibers by jointly setting the optical fiber connection distribution structure and the guide limit structure in combination with the pigtail connection limit structure, so that the wiring interface can be replaced and adapted according to the optical fiber specifications during the optical fiber wiring process, ensuring orderly wiring even in irregular installation and maintenance processes. It can also achieve the purpose of continuous and smooth wiring and reduce the complexity of wiring by combining the synchronous axial locking and radial locking with continuous steering adjustment and guide limit. With the mutual use of the two, bidirectional locking in the orderly wiring process of optical fibers is realized in a dual independent limit mode, effectively avoiding the maintenance inconvenience caused by frequent conversion or rewiring of optical cable interfaces. 2. During the bidirectional locking process, when the optical fiber is pulled outward, the adjusting bolt on the pigtail connection limiting structure is pre-adjusted to move vertically, driving the pressing piece to adjust the outlet gap according to the optical fiber specifications, that is, the distance between the pressing piece and the support rod is changed, thereby completing the radial locking of the optical fiber distribution tail section; then continue to pull the optical fiber at the upper edge of the pigtail connection limiting structure, straighten the optical fiber and place it into the threading gap, so that the middle section of the optical fiber distribution is axially locked under the mutual bite of the clamping ring and the elastic ring; under the double locking effect of the combination of radial locking and axial locking, the wiring process in the optical cable distribution box can be replaced and adapted according to the optical fiber specifications. The wiring interface can be replaced and adapted for loading, ensuring that irregular installation and maintenance processes can also be wired in an orderly manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the installation of the pigtail connection limiting structure of the present invention; Figure 4 It is a structural diagram of the pigtail connection limiting structure of the present invention; Figure 5 This is a schematic diagram of the installation of the optical fiber connection distribution structure of the present invention; Figure 6 A top view of the optical fiber connection distribution structure of the present invention; Figure 7 It is a front view of the guide and limiting structure of the present invention; Figure 8 It is a front cross-sectional view of the guide and limiting structure of the present invention; Figure 9 It is a partial structural closed structure diagram of the present invention; Figure 10 This is a schematic diagram of the simulated wiring of the present invention.

[0018] In the figure: 1. Box body; 2. Box cover; 3. Rack; 4. Insert plate; 5. Mounting frame; 6. Upper cover sleeve; 7. Lock body; 8. Lower connecting frame; 9. Elastic hoop; 10. Lock bolt seat; 11. Inlet hole plate; 12. Lower top plug block; 13. Upper connecting frame; 14. Adjusting bolt; 15. Support rod; 16. Pressing piece; 17. Connecting belt 1; 18. Spring; 19. Turning rod; 20. Distribution frame; 21. Rotating card seat; 22. Connecting belt 2; 23. Locking bolt; 24. Clamp ring; 25. Spring ring; 26. Spring. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1: To solve the problem of orderly wiring of optical fibers of different specifications, the following technical solution is proposed: Reference Figures 1-9 As shown, the optical fiber distribution box with a multi-directional limited optical fiber outlet structure in this embodiment includes a box body 1 and a box cover 2. A pigtail connection limiting structure is embedded in the middle of one end of the box body 1. The pigtail connection limiting structure includes a lower frame 8 and an upper frame 13 that are plugged into the box body 1 and constitute a line outlet slot. The upper frame 13 is equipped with symmetrically arranged pressing pieces 16. A support rod 15 that is vertically aligned with the pressing piece 16 is rotatably installed on the lower frame 8. A connecting belt 17 is commonly installed on the inner side of a pair of pressing pieces 16. An adjusting bolt 14 that passes through the top of the upper frame 13 is rotatably installed on the pressing piece 16. The vertical movement of the adjusting bolt 14 can actively drive the pressing piece 16 to complete the vertical movement. The pressing piece 16 connected by the connecting belt 17 can synchronously complete the adjustment of the distance between it and the support rod 15, thereby achieving the purpose of adaptive loading. A fiber optic connection distribution structure is rotatably provided on one side of the box body 1 near the box cover 2. The fiber optic connection distribution structure includes a plug-in board 4 and a mounting frame 5. A distribution frame 20 is installed between a pair of mounting frames 5. At least three rotating card seats 21 are rotatably provided in the distribution frame 20. Here, the optical fiber end is rotated and distributed by rotating the card seats 21 to ensure that different optical fiber wiring can be orderly distributed. A guide and limit structure is installed at the end of the plugboard 4 away from the box cover 2. The guide and limit structure includes a lower top plug block 12 and an upper cover sleeve 6 that are connected to each other. A threading slot corresponding to the number of rotating card seats 21 is opened between the lower top plug block 12 and the upper cover sleeve 6. The threading slot's passing area can be actively adjusted to achieve the purpose of orderly wiring. The upper cover sleeve 6 is rotatably installed with a locking bolt 23 in the middle of the adjacent wire threading slot. The locking bolt 23 is threadedly connected to the lower top plug block 12. The box body 1 and the box cover 2 are jointly installed with a lock body 7 at the ends away from the hinge. The box body 1 is embedded in the installation of the wire entry hole plate 11 on both sides near the lower connecting frame 8. The optical fiber is introduced by the wire entry hole plate 11. After the orderly wiring is completed, the locking between the box body 1 and the box cover 2 is completed by the lock body 7.

[0021] Basic principle: refer to Figure 4 、 Figure 5 、 Figure 8 and Figure 10 As shown, when distributing optical fibers in the optical fiber distribution box, the optical fibers are distributed in an orderly manner by combining the optical fiber connection distribution structure and the guide limit structure with the pigtail connection limit structure, as follows: The horizontally rotating rotating base 21 drives the optical fiber to complete the horizontal steering adjustment. During the process of pulling the optical fiber outward, the adjusting bolt 14 on the pre-adjusted pigtail connection limit structure is vertically moved, driving the pressing piece 16 to adjust the outlet card gap according to the optical fiber specifications, that is, the spacing between the pressing piece 16 and the support rod 15 is changed, thereby completing the radial locking of the optical fiber distribution tail section; then continue to pull the optical fiber at the upper edge of the pigtail connection limit structure, straighten the optical fiber and place it into the wire threading card gap, so that the middle section of the optical fiber distribution is axially locked under the mutual bite of the clamping ring 24 and the elastic ring 25; under the double locking effect of the combination of radial locking and axial locking, the wiring process in the optical cable distribution box can be replaced and adapted according to the optical fiber specifications. The wiring interface can be replaced and adapted to load, ensuring that irregular installation and maintenance processes can also be orderly wiring; It should be noted that during the adjustment of the spacing between the pressing piece 16 and the support rod 15, the pair of pressing pieces 16 move vertically downward and form abutting contact with the cable outlet slot, that is, the two ends of the pressing piece 16 bend inward, and at the same time, the support rod 15 moves downward under the combined force, and also forms abutting contact with the cable outlet slot, that is, the two ends of the support rod 15 also bend inward, thereby achieving a mechanical locking effect of the middle section of the optical fiber distribution line under the action of the inward bending of the pressing piece 16; For this purpose, a pair of pressing pieces 16 are provided, the ends of which abut against the upper sides of the middle parts of the two ends of the outlet card slot. A spring piece 18 is installed at the lower end of the support rod 15. A rotating rod 19 rotatably connected to the lower connecting frame 8 is installed in the middle of the spring piece 18. The two ends of the spring piece 18 abut against the middle parts of the two ends of the outlet card slot. The lower top insert block 12 and the upper cover sleeve 6 are jointly installed with a connecting belt 22 at one end away from the plugboard 4. A spring 26 is installed at the middle position of the bottom of the lower top insert block 12 corresponding to the threading card slot. An elastic ring 25 is installed on the spring 26. A clamping ring 24 is installed at the top of the upper cover sleeve 6 corresponding to the threading card slot. The two ends of the clamping ring 24 extend to the lower side of the middle of the threading card slot, and the two ends of the elastic ring 25 extend to the upper side of the middle of the threading card slot, and the two ends of the elastic ring 25 abut against the inner ring side of the clamping ring 24. During the process of mutual receiving and shrinking of the lower top insert block 12 and the upper cover sleeve 6, the threading gap becomes smaller, and the elastic ring 25 forms a bite effect with the clamping ring 24 under the relative upward displacement action, that is, the elastic ring 25 completes the diameter shrinking action inside the clamping ring 24, and the spring 26 releases its elastic potential energy and bounces upward, which, combined with the above-mentioned diameter shrinking action, completes the auxiliary locking.

[0022] Example 2: This example further optimizes the guiding and limiting structure in Example 1. The outer ring side of the box body 1 corresponding to the plug board 4 is equipped with elastic hoops 9 distributed at intervals, and the side of the box body 1 close to the lower frame 8 is symmetrically equipped with a lock bolt seat 10. The elastic hoop 9 and the lock bolt seat 10 are used to fix the optical fiber between the rotating card seat 21 and the threading card slot. The lower side of the box body 1 corresponding to the plug board 4 is equipped with a rack 3, and the rack 3 is used to fix the optical splitter.

[0023] Reference Figure 2 、 Figure 9 and Figure 10 As shown, during the outward pulling of the optical fiber, the distance between the pressing piece 16 and the support rod 15 is adjusted to complete the preliminary fixation of the optical fiber distribution tail section, and then the optical fiber is straightened and placed into the threading card slot, and the clamping ring 24 and the elastic ring 25 engage with each other to form an axial lock, and finally the distribution optical fiber is completely fixed by the elastic hoop 9; It should be noted that when the optical fiber is pulled outward, after the initial locking is completed by adjusting the spacing between the pressing piece 16 and the support rod 15, the vertical rotation of the rotating card seat 21 completes the steering adjustment of the optical fiber wiring lead-out section, and the irregular fiber splitting operations can be performed independently without interfering with each other. The elastic hoop 9 is then used to complete the auxiliary fixation of the optical fiber middle section wiring, combined with the axial fixation and radial fixation for the optical fiber wiring, until the optical fiber wiring is completed in an orderly manner. It needs to be explained again that the axial locking and radial locking processes are carried out almost simultaneously. In addition, the steering adjustment process and the guide limit process are also carried out continuously. Therefore, the mechanical locking and diameter reduction actions in the optical fiber wiring process are also completed continuously, further reducing the optical fiber wiring time in the optical cable distribution box and improving the wiring efficiency.

[0024] Example 3: This example combines the technical contents of Example 1 and Example 2 to form the following wiring method: Fiber connection and distribution: First, insert the end of the fiber to be wired into the horizontally rotatable rotating holder 21 to drive the fiber to complete the horizontal outward lead adjustment, so that the lead direction is consistent with the wiring direction and is reasonably positioned; Guide limit: During the adjustment of the spacing between the pressing piece 16 and the support rod 15, the pair of pressing pieces 16 move vertically downward and form abutment contact with the line-out card slot, that is, the two ends of the pressing piece 16 bend inward, and at the same time, the support rod 15 moves downward under the combined force, and also forms abutment contact with the line-out card slot, that is, the two ends of the support rod 15 also bend inward, thereby achieving a mechanical locking effect of the middle section of the optical fiber distribution under the action of the inward bending of the pressing piece 16; Pigtail connection limit: During the mutual receiving and shrinking process of the lower top plug block 12 and the upper cover sleeve 6, the threading gap becomes smaller, and the elastic ring 25 forms a bite effect with the clamping ring 24 under the relative upward displacement, that is, the elastic ring 25 completes the diameter reduction action in the clamping ring 24, and the spring 26 releases the elastic potential energy and bounces upward, which combines with the above-mentioned diameter reduction action to complete the auxiliary locking.

[0025] In summary: the present invention can realize the orderly wiring of optical fibers through the joint setting of the optical fiber connection distribution structure and the guide limiting structure combined with the pigtail connection limiting structure, so that the wiring interface can be replaced and adapted according to the optical fiber specifications during the optical fiber wiring process, ensuring that irregular installation and maintenance processes can also be wired in an orderly manner; it can also achieve the purpose of continuous and smooth wiring and reduce the complexity of wiring through the simultaneous axial locking and radial locking combined with continuous steering adjustment and guide limiting; under the mutual use of the two, two-way locking in the orderly wiring process of optical fibers is realized in a dual independent limiting manner, effectively avoiding the maintenance inconvenience caused by frequent conversion or rewiring of optical cable interfaces.

[0026] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

[0027] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An optical fiber distribution box with a multi-directional limited optical fiber outlet structure, comprising a box body (1) and a box cover (2), characterized in that: A pigtail connection limiting structure is embedded in the middle of one end of the box (1), and the pigtail connection limiting structure comprises a lower connecting frame (8) and an upper connecting frame (13) which are plugged into the box (1) and form a line outlet slot, the upper connecting frame (13) is provided with a symmetrically arranged pressing piece (16), and the lower connecting frame (8) is rotatably provided with a support rod (15) which is vertically aligned with the pressing piece (16); An optical fiber connection distribution structure is rotatably provided on one side of the box body (1) close to the box cover (2), and the optical fiber connection distribution structure comprises an insert plate (4) and a mounting frame (5). A distribution frame (20) is installed between a pair of the mounting frames (5), and at least three rotating card seats (21) are rotatably provided in the distribution frame (20); A guide and limit structure is installed at the end of the insert plate (4) away from the box cover (2), and the guide and limit structure includes a lower top insert block (12) and an upper cover sleeve (6) that are connected to each other. A threading slot corresponding to the number of the rotating card seat (21) is provided between the lower top insert block (12) and the upper cover sleeve (6).

2. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 1, characterized in that: The outer ring side of the box body (1) corresponding to the plug board (4) is equipped with elastic hoop rings (9) distributed at intervals, and the side of the box body (1) close to the lower connecting frame (8) is symmetrically equipped with a locking bolt seat (10), and the elastic hoop ring (9) and the locking bolt seat (10) are used to fix the optical fiber between the rotating card seat (21) and the threading card slot.

3. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 2, characterized in that: A rack (3) is installed on the lower side of the box (1) corresponding to the plug-in board (4), and the rack (3) is used to fix the optical splitter.

4. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 1, characterized in that: A connecting belt (17) is commonly installed on the inner sides of a pair of pressing plates (16), and an adjusting bolt (14) penetrating to the top of the upper connecting frame (13) is rotatably installed on the pressing plates (16). The ends of the pair of pressing plates (16) abut against the upper sides of the middle parts of the two ends of the outlet card slot.

5. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 3, characterized in that: A spring piece (18) is installed at the lower end of the support rod (15), a rotating rod (19) rotatably connected to the lower connecting frame (8) is installed in the middle of the spring piece (18), and both ends of the spring piece (18) abut against the middle of both ends of the outlet card slot.

6. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 1, characterized in that: The lower top insert block (12) and the upper cover sleeve (6) are jointly provided with a connecting belt 2 (22) at one end away from the insert plate (4), a spring (26) is provided at the middle position of the bottom of the lower top insert block (12) corresponding to the threading slot, an elastic ring (25) is provided on the spring (26), and a clamping ring (24) is provided at the top of the upper cover sleeve (6) corresponding to the threading slot.

7. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 6, characterized in that: The two ends of the clamp ring (24) extend to the lower side of the middle of the threading slot, and the two ends of the elastic ring (25) extend to the upper side of the middle of the threading slot, and the two ends of the elastic ring (25) abut against the inner ring side of the clamp ring (24).

8. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 7, characterized in that: The upper cover sleeve (6) is rotatably mounted with a locking bolt (23) in the middle of the adjacent threading slot, and the locking bolt (23) is threadably connected to the lower top insert block (12).

9. The optical fiber distribution box with a multi-directional limited optical fiber outlet structure according to claim 1, characterized in that: The box body (1) and the box cover (2) are both provided with a lock body (7) at their ends away from the hinges, and the box body (1) is provided with wire feed hole plates (11) embedded in and installed on both sides of the box body (1) close to the lower connecting frame (8).

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