Optical fiber terminal box
By using the fiber wheels and stepped structure composed of elastically movable fiber coils in the fiber terminal box, the loose problem caused by inconsistent length of the fiber line is solved, and the orderly distribution and convenient wire management of the fiber line are achieved.
Patent Information
- Application Number
- CN202421152586.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In existing fiber terminal boxes, fixed diameter fiber wheels cannot effectively adjust the length of the fiber line, resulting in loose and messy distribution after welding, making the fiber line difficult to regulate the wire.
The fiber wheel consisting of two mutually elastically movable fiber disks is adopted. Through elastic connection and step-shaped structure, the flexible length adjustment of the fiber wheel and the orderly distribution of the fiber wires are achieved. The outer wall of the fiber wheel is fitted with the fiber wires. And distinguish fiber optic lines through wire ducts.
It realizes the close distribution of optical fiber lines, facilitates wire management, and improves the neatness and maintenance of optical fiber terminal boxes.
Smart Images
Figure CN222259662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber communication, in particular to an optical fiber terminal box. Background Art
[0002] The fiber optic terminal box is an important auxiliary device for terminal wiring in the fiber optic transmission communication network. It plays the role of introducing optical cables, leading out wiring pigtails, and fixing and protecting optical cables, wiring pigtails and the optical fiber performance from damage. The fiber optic terminal box has an optical cable at one end and a pigtail at the other end. It is equivalent to a device that splits an optical cable into single optical fibers, distributes the optical signal in a total input optical fiber to multiple output optical fibers, and is used to realize communication between multiple devices.
[0003] When wiring in the fiber optic terminal box, some length will be reserved to facilitate the connection operation, ensure the quality of signal transmission, serve as a backup channel, etc. There is a fiber winding wheel in the fiber optic terminal box, which can wind the excess fiber reserved at the fiber optic connection point on the fiber winding wheel to keep the space in the box tidy, but the diameter of the fiber winding wheel is currently fixed. When the fiber needs to be welded again or the reserved length of the fiber is not accurate, the fiber optic line wound on the fiber winding wheel will be loose or tight, causing the fiber optic line to be loose in the terminal box, making the distribution of the fiber optic line messy and difficult to manage. Utility Model Content
[0004] In view of the problems and defects in the prior art, according to the first aspect of the purpose of the utility model, an optical fiber terminal box is provided, comprising a box body and a box cover covering the upper part of the box body;
[0005] A fiber winding wheel is provided inside the box body, and an inlet hole for the bus optical fiber to pass through and an outlet hole for the branch optical fiber to pass through are respectively opened on the two side walls of the box body, and the optical fiber lines of the bus optical fiber and the branch optical fiber fusion-spliced part are wound around the outside of the fiber winding wheel;
[0006] The fiber winding wheel comprises at least two fiber winding disks which are centrally symmetrically distributed. The two fiber winding disks are configured to have mutually repelling elastic forces when approaching each other, so that the optical fiber can be closely attached to the outer periphery of the fiber winding disks when it is wound around the outside of the two fiber winding disks.
[0007] As an optional implementation, a rotating shaft is provided in the box body corresponding to each of the fiber winding disks, and the fiber winding disk is rotatably mounted on the outside of the rotating shaft and is elastically connected to the rotating shaft.
[0008] As an optional implementation, the fiber winding disk includes:
[0009] A disc body, one end of which is provided with a spring hole;
[0010] A spring, fixedly disposed in the spring hole and fixedly engaged with the rotating shaft;
[0011] The disk body is elastically connected to the rotating shaft via the spring, and the fiber winding disk is made to have a set elastic activity angle around the rotating shaft.
[0012] As an optional embodiment, the angle of elastic movement of the disk around the rotation axis is set at 0°-60°.
[0013] As an optional implementation, more than two wire grooves are provided on the peripheral side wall of the disk body, and the plurality of wire grooves are distributed in parallel in the thickness direction of the box body.
[0014] As an optional implementation, a plurality of the fiber winding disks are provided in the thickness direction of the box body, and the total thickness of the plurality of fiber winding disks is less than the thickness of the box body.
[0015] As an optional implementation, the cross-sectional dimensions of the plurality of fiber winding disks are proportionally reduced from bottom to top, so that the edges of the plurality of fiber winding disks are in a stepped shape.
[0016] As an optional implementation, the cross-sectional shape of the fiber winding disk is configured as a semicircle or a semi-ellipse.
[0017] As an optional implementation, the fiber winding disk is constructed as an axisymmetric structure, and the rotating shaft is arranged on one side of the symmetry axis of the fiber winding disk.
[0018] As an optional implementation, define that the first position is when the two centrally symmetrically distributed fiber winding disks are at the farthest distance, and the second position is when the two centrally symmetrically distributed fiber winding disks are at the closest distance, the length of the optical fiber line wrapped around the fiber winding disk in the first position is C1, the length of the optical fiber line wrapped around the fiber winding disk in the second position is C2, and C1 is less than twice C2.
[0019] Compared with the prior art, the fiber optic terminal box of the utility model has a fiber winding wheel composed of two mutually elastically movable fiber winding disks, so that the fiber winding wheel can flexibly adjust the winding length, that is, the fiber winding wheel has a good compensation ability. When optical fibers of different lengths are wound on the fiber winding wheel, the outer wall of the fiber winding wheel can fit with the optical fiber, and the fiber winding wheel is specifically provided with wire grooves and a stepped structure configuration, which makes it easier to distinguish the optical fibers on the fiber winding wheel, making the distribution of the optical fibers more orderly and convenient for cable management. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or approximately identical component shown in each figure may be represented by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings.
[0021] Figure 1 It is a three-dimensional structural schematic diagram of the optical fiber terminal box shown in the embodiment of the utility model.
[0022] Figure 2 It is a schematic diagram of the top view of the optical fiber terminal box shown in the embodiment of the utility model.
[0023] Figure 3 It is a schematic diagram of the state of winding optical fiber on the fiber winding wheel shown in an embodiment of the utility model.
[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of a single fiber winding disk shown in an embodiment of the utility model.
[0025] The definitions of the various components in the drawings are as follows:
[0026] 100, box body; 200, box cover; 300, wire inlet hole; 400, wire outlet hole; 500, rotating shaft; 10, fiber winding disk; 101, spring hole; 102, wire groove; 11, disk body; 12, spring. DETAILED DESCRIPTION
[0027] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
[0028] Since the fixed-size fiber winding wheel cannot always fit the optical fiber wound on it, the optical fiber becomes loose, making the inside of the optical fiber terminal box messy. Figure 1 The optical fiber terminal box of the example shown is intended to solve the problem that the optical fiber cannot be tightly wound on the fiber winding wheel after fusion splicing.
[0029] Combined with Figure 1 To Attachment Figure 4 In the embodiment shown, the optical fiber terminal box comprises a box body 100 and a box cover 200 covering the upper part of the box body 100. A fiber winding wheel is arranged inside the box body 100, and a line inlet hole 300 for the bus optical fiber to pass through and a line outlet hole 400 for the branch optical fiber to pass through are respectively opened on the two side walls of the box body 100, and the optical fiber lines of the bus optical fiber and the branch optical fiber fusion splicing part are wound on the outer side of the fiber winding wheel.
[0030] like Figure 1 and Figure 2 As shown, the fiber winding wheel includes at least two fiber winding discs 10 that are centrally symmetrically distributed. The two fiber winding discs 10 are configured to have mutually repelling elastic forces when they are close to each other, so that the optical fiber can be tightly attached to the outer circumference of the fiber winding disc 10 when it is wound around the outside of the two fiber winding discs 10.
[0031] In some embodiments, the fiber winding disk 10 is made of plastic material and has a semicircular or semi-elliptical cross-sectional shape. The first position is defined as when two centrally symmetrically distributed fiber winding disks 10 are at the farthest distance (e.g. Figure 2 The second position is when the two fiber winding disks 10 are at the closest distance (as shown in FIG. Figure 3 As shown in the figure, the length of the optical fiber wound around the fiber winding disc 10 in the first position is C1, and the length of the optical fiber wound around the fiber winding disc 10 in the second position is C2. C1 is less than twice C2, so that the fiber winding wheel can compensate for the length less than C2. When the length is greater than C2, it only needs to be wound around the fiber winding wheel for one round.
[0032] Furthermore, a rotating shaft 500 is provided in the box body 100 corresponding to each fiber winding disc 10 .
[0033] The fiber tray 10 is rotatably mounted on the outer side of the rotating shaft 500 and is elastically connected to the rotating shaft 500 .
[0034] As an optional embodiment, the fiber winding drum 10 is constructed as an axisymmetric structure, and the rotating shaft 500 is arranged on one side of the symmetry axis of the fiber winding drum 10, so that the fiber winding drum 10 has a larger range of motion when rotating around the rotating shaft 500, in exchange for greater length compensation when winding the optical fiber.
[0035] In some embodiments, the fiber winding disk 10 includes a disk body 11 and a spring 12 .
[0036] A spring hole 101 is provided at one end of the disc body 11. A spring 12 is fixedly disposed in the spring hole 101 and is clamped and fixed to the rotating shaft 500. The disc body 11 and the rotating shaft 500 are elastically connected via the spring 12, and the fiber winding disc 10 has a set elastic activity angle around the rotating shaft 500.
[0037] As an optional embodiment, the spring 12 is a coil spring with a thickness less than or equal to the thickness of the disk body 11. When the number of disk bodies 11 increases, the number of springs 12 is increased accordingly. One end of the spring 12 is clamped in the hole on the rotating shaft 500, and the other end is clamped in the hole on the inner wall of the spring hole 101, so that the spring 12 is fixed between the disk body 11 and the rotating shaft 500. When the disk body 11 rotates around the rotating shaft 500, the spring 12 contracts or stretches, so that the disk body 11 has elastic potential energy.
[0038] As an optional embodiment, the spring 12 is configured to be elastically contractible so that the initial position of the disc 11 is Figure 2 Position, when the optical fiber is wound around the outside of the disc body 11, the disc body 11 has elastic potential energy extending outward, so that the optical fiber can fit on the outer wall of the disc body 11, and the angle of elastic activity of the disc body 11 around the rotating shaft 500 is set at 0°-60°, so that when the fiber winding disc 10 rotates around the rotating shaft 500, it has a larger range of activity, so as to achieve greater length compensation when winding the optical fiber.
[0039] like Figure 4 In the example shown, in order to ensure that the optical fiber wires wound around the outer periphery of the disk body 11 can maintain a stable winding position, more than two wire grooves 102 are opened on the peripheral side wall of the disk body 11.
[0040] In particular, the plurality of wire grooves 102 are configured to be distributed in parallel in the thickness direction of the box body 100. Thus, the plurality of optical fibers can be wound in different wire grooves 102, respectively, so that the optical fibers are wound in the disk body 11 in a more orderly manner, and their connection relationship and direction are clearly displayed, which is conducive to the visual identification and maintenance in the later stage, and the problem can be quickly located and maintained.
[0041] Furthermore, a plurality of fiber winding discs 10 are provided in the thickness direction of the box body 100 , and the total thickness of the plurality of fiber winding discs 10 is less than the thickness of the box body 100 .
[0042] The number of fiber winding discs 10 can be selected according to the number of branch optical fibers, that is, a certain number of outlet holes 400 are provided on the box body 100, and the number of fiber winding discs 10 needs to match the number of outlet holes 400 so that the optical fibers can correspond one to one when winding.
[0043] In an optional implementation, the cross-sectional dimensions of the plurality of fiber winding disks 10 are proportionally reduced from bottom to top, so that the edges of the plurality of fiber winding disks 10 are in a stepped shape.
[0044] Therefore, when a plurality of optical fibers are respectively wound on the fiber winding drum 10, it is easier to distinguish the optical fibers on the fiber winding drum 10, and the distribution of the optical fibers is more orderly, which is convenient for organizing and distinguishing the fibers.
[0045] In combination with the above embodiments, a fiber winding wheel consisting of two mutually elastically movable fiber winding disks 10 is provided, so that the fiber winding wheel can flexibly adjust the winding length, that is, the fiber winding wheel has a good compensation ability. When optical fibers of different lengths are wound on the fiber winding wheel, the outer wall of the fiber winding wheel can fit with the optical fiber, and the fiber winding wheel is specifically provided with a wire groove 102 and a stepped structure configuration, which makes it easier to distinguish the optical fibers on the fiber winding wheel, making the distribution of the optical fibers more orderly and convenient for cable management.
[0046] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.
Claims
1. An optical fiber terminal box, characterized in that: The invention comprises a box body (100) and a box cover (200) covering the upper part of the box body (100); a fiber winding wheel is arranged inside the box body (100); two side walls of the box body (100) are respectively provided with an inlet hole (300) for a bus optical fiber to pass through and an outlet hole (400) for a branch optical fiber to pass through; optical fibers of the bus optical fiber and the branch optical fiber fusion-spliced part are wound around the outside of the fiber winding wheel; The fiber winding wheel comprises at least two fiber winding discs (10) which are centrally symmetrically distributed, and the two fiber winding discs (10) are configured to have a mutually repelling elastic force when they are close to each other, so that the optical fiber line can be tightly attached to the outer periphery of the fiber winding disc (10) when it is wound around the outside of the two fiber winding discs (10).
2. The optical fiber terminal box according to claim 1, characterized in that: A rotating shaft (500) is provided in the box body (100) corresponding to each of the fiber winding discs (10); the fiber winding disc (10) is rotatably mounted on the outside of the rotating shaft (500) and is elastically connected to the rotating shaft (500).
3. The optical fiber terminal box according to claim 2, characterized in that: The fiber winding disk (10) comprises: A disc body (11), wherein one end of the disc body (11) is provided with a spring hole (101); A spring (12) is fixedly disposed in the spring hole (101) and is clamped and fixed to the rotating shaft (500); The disk body (11) and the rotating shaft (500) are elastically connected via the spring (12), and the fiber winding disk (10) has a set elastic activity angle around the rotating shaft (500).
4. The optical fiber terminal box according to claim 3, characterized in that: The angle of elastic movement of the disk body (11) around the rotating shaft (500) is set at 0°-60°.
5. The optical fiber terminal box according to claim 3, characterized in that: More than two wire grooves (102) are provided on the peripheral side wall of the disk body (11), and the plurality of wire grooves (102) are distributed in parallel in the thickness direction of the box body (100).
6. The optical fiber terminal box according to any one of claims 1 to 5, characterized in that: A plurality of the fiber winding disks (10) are provided in the thickness direction of the box body (100), and the total thickness of the plurality of fiber winding disks (10) is less than the thickness of the box body (100).
7. The optical fiber terminal box according to claim 6, characterized in that: The cross-sectional dimensions of the plurality of fiber winding disks (10) are reduced in equal proportion from bottom to top, so that the edges of the plurality of fiber winding disks (10) are in a stepped shape.
8. The optical fiber terminal box according to claim 6, characterized in that: The cross-sectional shape of the fiber winding disk (10) is configured as a semicircle or a semi-ellipse.
9. The optical fiber terminal box according to claim 2, characterized in that: The fiber winding disc (10) is constructed as an axisymmetric structure, and the rotating shaft (500) is arranged on one side of the axis of symmetry of the fiber winding disc (10).
10. The optical fiber terminal box according to claim 1, characterized in that: It is defined that the first position is when the two fiber winding disks (10) distributed symmetrically with respect to the center are at the farthest distance, and the second position is when the two fiber winding disks (10) distributed symmetrically with respect to the center are at the closest distance. The length of the optical fiber winding around the fiber winding disk (10) in the first position is C1, and the length of the optical fiber winding around the fiber winding disk (10) in the second position is C2, and C1 is less than twice C2.