Fiber access box and fiber access box assembly

Abstract

The application provides an optical fiber access box and an optical fiber access box assembly, and belongs to the technical field of optical fiber communication. The optical fiber terminal box is applied to FTTH, FTTO or FTTR scenes. The optical fiber access box comprises a bottom shell, an upper cover, a cable reel, a locking piece and an optical cable. The cable reel is rotatably arranged on the bottom shell, the upper cover covers the bottom shell and forms a containing cavity containing the cable reel with the bottom shell, and the cable reel is used for winding the optical cable. The locking piece is rotatably or slidably connected with one of the bottom shell and the cable reel, and the other of the bottom shell and the cable reel is provided with a first locking structure. The locking piece is provided with a second locking structure, and the locking piece can rotate or slide to make the second locking structure and the first locking structure in circumferential clamping or releasing of the cable reel. When the cable reel does not need to release the optical cable, the user can operate the locking piece to lock the cable reel.

Description

Technical Field

[0001] This application relates to the field of optical fiber communication technology, and in particular to an optical fiber access box and an optical fiber access box assembly. Background Technology

[0002] Fiber optic access boxes, such as fiber optic terminal boxes, are used to interface with optical network equipment. For example, they interface with optical network units (ONUs) or optical network terminals (ONTs) to enable Fiber to the Home (FTTH), Fiber to the Office (FTTO), or Fiber to the Room (FTTR).

[0003] In related technologies, a fiber optic terminal box includes a housing and a cable reel, the cable reel being rotatably located inside the housing. The cable reel is used to wind optical cables, one end of which can be used to connect to a fiber distribution box in the building, and the other end is used to connect to optical network equipment. When installing the fiber optic terminal box, the user can pull out an appropriate length of optical cable so that the cable can be connected to the fiber distribution box in the building.

[0004] During the installation of fiber optic terminal boxes, users may accidentally pull out the fiber optic cable. For example, after pulling out the appropriate length of fiber optic cable, the user may mistakenly pull out a length greater than actually required. Utility Model Content

[0005] This application provides a fiber optic access box and a fiber optic access box assembly. The fiber optic access box includes a locking mechanism that restricts the rotation of the cable reel when cable release from the cable reel is not required. The technical solutions for the fiber optic access box and the fiber optic access box assembly are described below.

[0006] In a first aspect, this application provides a fiber optic access box. The fiber optic access box includes a bottom shell, a top cover, a cable reel, a locking member, and an optical cable. The cable reel is rotatably disposed on the bottom shell, and the top cover closes onto the bottom shell, forming a receiving cavity with the bottom shell to accommodate the cable reel, which is used to wind the optical cable. The locking member is rotatably or slidably connected to one of the bottom shell and the cable reel, and the other of the bottom shell and the cable reel is provided with a first locking structure. The locking member is provided with a second locking structure, which can be engaged or disengaged from the first locking structure circumferentially around the cable reel by rotation or sliding.

[0007] The second locking structure is circumferentially engaged with the first locking structure, which can be considered as the locking member locking the cable reel, the locking member being in a locked state, or the cable reel being in a locked state. The second locking structure disengaging from the first locking structure can be considered as the locking member releasing its lock on the cable reel, the locking member being in an unlocked state, or the cable reel being in an unlocked state.

[0008] The technical solution provided in this application uses a base shell as a fixed component and a cable reel as a rotating component. One of the base shell and the cable reel has a first locking structure, and the other has a locking element, which in turn has a second locking structure. When the second locking structure is circumferentially engaged with the first locking structure, the base shell can restrict the rotation of the cable reel through the locking element. When the cable reel is not needed to release the optical cable, the user can operate the locking element to circumferentially engage the second locking structure with the first locking structure, thus restricting the rotation of the cable reel. In this case, even if the user accidentally pulls the optical cable, the cable reel will not rotate. When the cable reel needs to release the optical cable, the user can operate the locking element to release the locking of the cable reel, allowing the user to pull the optical cable, and the cable reel can rotate normally to release the optical cable.

[0009] In one implementation, there are multiple first locking structures arranged circumferentially along the cable reel. By using multiple first locking structures arranged circumferentially along the cable reel, the cable reel can be locked at more positions.

[0010] In one implementation, a plurality of first locking structures include a plurality of teeth spaced apart circumferentially. A second locking structure includes at least one tooth for extending between the plurality of teeth in the plurality of first locking structures to achieve circumferential engagement between the second locking structure and the first locking structure.

[0011] In one implementation, the bottom shell includes a bottom plate and a fixed shaft, with one end of the fixed shaft connected to the bottom plate. The cable reel includes a first reel and a cable cylinder, the cable cylinder being sleeved on the fixed shaft. A locking element is rotatably or slidably connected to one of the fixed shaft and the cable cylinder, and the other of the fixed shaft and the cable cylinder is provided with a first locking structure. This facilitates the installation of the first locking structure and the locking element.

[0012] In one implementation, the cable reel further includes a second reel, with the first and second reels axially spaced apart within the cable drum. The second reel is close to or abuts against the base plate. This allows the optical cable to be better confined between the first and second reels. Furthermore, the optical cable will not rub against the base shell during cable reel rotation.

[0013] In one implementation, the base plate has a recessed groove, and part of the second reel's structure is located within the groove. This allows the base shell to restrain the second reel, reducing its swaying.

[0014] In one implementation, a plurality of first locking structures are provided at the end of the fixed shaft away from the base plate. The locking element is rotatably connected to the cable reel. Along the axial direction of the fixed shaft, the fixed shaft is arranged between the base plate and the locking elements. A second locking structure is provided on the side of the locking element facing the fixed shaft. The user can lock or release the cable reel by pressing the locking element.

[0015] In one implementation, the locking member includes a first part and a second part, which are arranged on both sides of the rotation axis of the locking member. The first part has a second locking structure on the side facing the fixed axis. When the first part is pressed, the second locking structure engages circumferentially with the first locking structure; when the second part is pressed, the second locking structure disengages from the first locking structure.

[0016] In one implementation, the first part of the locking member has a locking indicator, and the second part of the locking member has an unlocking indicator. This allows the user to be prompted on how to operate the locking member to lock the cable reel, and how to operate the locking member to unlock the cable reel.

[0017] In one implementation, the locking element includes a hook connected to the end of the first part away from the rotation axis. The cable reel wall is provided with a locking hole. When the second locking structure and the first locking structure are engaged circumferentially, the hook engages axially with the locking hole on the cable reel. After the hook engages with the locking hole, it limits the locking element, preventing it from rotating due to gravity, vibration, or other reasons, thus releasing the second locking structure from the first locking structure. The hook and locking hole increase the reliability of the locking element in locking the cable reel.

[0018] In one implementation, when the second locking structure disengages from the first locking structure, the first portion protrudes from the cable reel in the direction toward the top cover. As the top cover closes onto the bottom shell, it presses down on the first portion, causing the second locking structure to engage circumferentially with the first locking structure. Thus, after the fiber optic access box is installed, even if the user forgets to operate the locking mechanism to lock the cable reel, the top cover can automatically push the locking mechanism to lock the cable reel during the closing process.

[0019] In one implementation, the cable reel has two opposing first rotating shaft grooves, and the locking member has two rotating shafts, each located in one of the two first rotating shaft grooves. This achieves a rotatable connection between the locking member and the cable reel.

[0020] In one implementation, at least one first rotating shaft groove has a first limiting groove on its groove wall, and at least one rotating shaft has a first limiting protrusion. When the locking member rotates until the first limiting protrusion leaves the first limiting groove, the second locking structure disengages from the first locking structure. When the locking member rotates until the first limiting protrusion extends into the first limiting groove, the second locking structure engages with the first locking structure circumferentially. In this way, the first limiting groove can limit the first limiting protrusion, ensuring that the locking member is stably maintained in the state of locking the cable reel, reducing the possibility of abnormal rotation of the locking member due to gravity, vibration, or other reasons.

[0021] In one implementation, at least one first rotating shaft groove has a second limiting groove on its groove wall, and the first and second limiting grooves are arranged circumferentially along the first rotating shaft groove. When the locking member rotates until the first limiting protrusion extends into the second limiting groove, the second locking structure disengages from the first locking structure. In this way, the locking member can still stably remain in the unlocked and locked state, reducing the possibility that the locking member will abnormally lock the cable reel due to gravity, vibration, or other reasons.

[0022] In one implementation, the locking element is rotatably connected to the end of the fixed shaft away from the base plate, and the cable reel is provided with multiple first locking structures. The user can lock or unlock the cable reel by pressing the locking element.

[0023] In one implementation, the rotation axis of the locking element is parallel to the first disc.

[0024] In one implementation, the locking element is slidably connected to the end of the fixed shaft away from the base plate, and the cable reel is provided with multiple first locking structures. The user can lock or unlock the cable reel by moving the locking element. The sliding direction of the locking element can be parallel to the first reel.

[0025] In one implementation, the cable reel includes a first cable reel and a second cable reel arranged axially, with the first and second cable reels positioned on opposite sides of the first reel. A locking element is rotatably or slidably connected to one of the fixed shaft and the second cable reel, while the other of the fixed shaft and the second cable reel is provided with multiple first locking structures. This facilitates the installation of the locking element and the first locking structures.

[0026] In one implementation, the fiber optic access box further includes an adapter. A first reel has an adapter limiting structure, and a bottom shell has an adapter holder. Both the adapter limiting structure and the adapter holder are used to secure the adapter. One end of the optical cable wound on the first reel has a second connector, and one end of the optical cable wound on the second reel has a first connector. The second connector extends to the outside of the bottom shell and the top cover, and the first connector is used to plug into one end of the adapter fixed to the adapter limiting structure, or into one end of the adapter fixed to the adapter holder.

[0027] The technical solution provided in this application allows for the following installation process of the fiber optic access box: First, the adapter is fixed to the adapter limiting structure, the first connector is inserted into one end of the adapter, and the second connector (or optical cable) is pulled outwards. During the pulling of the second connector, the cable reel rotates and continuously releases the optical cable, causing the adapter and the first connector to rotate synchronously with the cable reel. When the length of the pulled-out optical cable equals the target length, the pulling of the optical cable is stopped. Then, the first connector is inserted into one end of the adapter fixed to the adapter socket, forming an optical interface at the other end of the adapter. This optical interface can be connected to the connector of the optical network equipment.

[0028] In one implementation, the fiber optic access box further includes an adapter fixed to the bottom housing. A first reel is provided with a connector limiting structure. One end of the optical cable wound around the first reel is provided with a second connector, and one end of the optical cable wound around the second reel is provided with a first connector. The second connector extends to the outside of the bottom housing and the top cover, and the first connector is used to be fixed to the connector limiting structure, or to be plugged into one end of the adapter.

[0029] The technical solution provided in this application allows for the following installation process for the fiber optic access box: First, the first connector is fixed to the connector limiting structure, and the second connector (or optical cable) is pulled outwards. During the pulling of the second connector, the cable reel rotates and continuously releases the optical cable, while the first connector rotates synchronously with the cable reel. After the optical cable is pulled to the target length, the first connector is plugged into one end of the adapter, and the other end of the adapter forms an optical interface, which can be connected to the connector of the optical network equipment.

[0030] In addition, by fixing only the first connector to the cable reel, users will naturally plug the first connector into the adapter on the bottom shell after pulling the optical cable to the target length, reducing the possibility of users misusing the fiber optic access box.

[0031] In one implementation, the bottom shell is equipped with a perimeter wall, which is arc-shaped and surrounds the cable reel. The height of the perimeter wall is lower than that of the first reel, and the outer diameter of the first reel is larger than the inner diameter of the perimeter wall. This perimeter wall protects the optical cable wound on the cable reel, improving the reliability of the cable reel. Furthermore, it reduces the possibility of the optical cable jumping out from the gap between the perimeter wall and the first reel.

[0032] In one implementation, the top cover includes a top plate, which is positioned opposite to the bottom shell. A QR code is provided on the top plate. The QR code can be located on the inner surface of the top plate; after scanning the QR code with a terminal device, the user can obtain the instruction manual or installation guide for the fiber optic access box.

[0033] Secondly, this application provides a fiber optic access box. The fiber optic access box includes a bottom shell, a top cover, a cable reel, and an optical cable. The bottom shell includes a base plate and a fixed shaft, one end of which is connected to the base plate. The cable reel is fitted onto the fixed shaft and is used to wind the optical cable. One of the cable reel and the top cover is provided with a third locking structure, and the other is provided with a fourth locking structure. When the top cover is closed on the bottom shell, the fourth locking structure and the third locking structure are engaged circumferentially with the cable reel.

[0034] The technical solution provided in this application allows for the following: when the top cover is closed onto the bottom shell, if the user accidentally pulls out the optical cable, the cable reel cannot rotate because the fourth locking structure and the third locking structure are circumferentially engaged. Furthermore, since the top cover limits the rotation of the cable reel, the first connector will not be subjected to force, thus preventing it from being pulled out of the adapter and reducing the possibility of damage to the optical cable.

[0035] In one implementation, there are multiple third locking structures arranged circumferentially along the cable reel. By using multiple third locking structures arranged circumferentially along the cable reel, the cable reel can be locked at more positions.

[0036] In one implementation, the cable reel includes a first reel and a cable cylinder, the cable cylinder being sleeved on a fixed shaft. The upper cover includes a top plate, which is disposed opposite to the bottom plate. One of the top plate and the cable cylinder is provided with a third locking structure, and the other is provided with a fourth locking structure.

[0037] The technical solution provided in this application, by setting the third or fourth locking structure on the cable reel's drum, facilitates the arrangement of optical cables on the surface of the first reel. Furthermore, by making the circumference of the circle enclosed by the multiple third locking structures smaller, the required number of third locking structures is also reduced, which is beneficial for the processing design of the cable reel and the top cover. The circle enclosed by the multiple third locking structures intersects with each of the multiple third locking structures.

[0038] In one implementation, the cable drum is provided with multiple third locking structures along the circumference, and the top plate is provided with a fourth locking structure.

[0039] In one implementation, the third locking structure is a slot structure, and the fourth locking structure is a protrusion structure. The protrusion structure extends into the slot structure to achieve circumferential engagement between the fourth locking structure and the third locking structure.

[0040] In one implementation, the cable reel has multiple teeth, which are arranged at intervals along the circumference of the cable reel, and a groove structure is formed between two adjacent teeth. A protrusion structure on the top plate is used to extend into the space between two adjacent teeth.

[0041] In one implementation, the cable reel includes an inner cylinder, a connecting structure, and an outer cylinder. The outer cylinder is fitted onto the inner cylinder, and the inner and outer cylinders are connected by the connecting structure. The inner cylinder is fitted onto a fixed shaft, and the outer cylinder is used to wind the optical cable. One of the top plate and the inner cylinder is provided with a third locking structure, and the other is provided with a fourth locking structure.

[0042] The technical solution provided in this application, by setting the inner cylinder with a third or fourth locking structure, ensures that the third or fourth locking structure does not affect the winding of the optical cable on the outer cylinder. Furthermore, when there are multiple third locking structures, the circumference of the cylinder surrounded by these structures is relatively small, thus requiring a smaller number of third locking structures, which is beneficial for the cable reel's processing design.

[0043] In one implementation, the inner cylinder has multiple teeth arranged around it. One end of each tooth is connected to the inner cylinder wall, and the other end extends towards the outer cylinder. A groove structure is formed between two adjacent teeth, which forms a third locking structure. The fourth locking structure is a protrusion structure that extends into the groove structure to achieve circumferential engagement between the fourth locking structure and the third locking structure.

[0044] In one implementation, the inner cylinder and the outer cylinder protrude relative to the first disc, and multiple teeth are provided on the portion of the inner cylinder that protrudes relative to the first disc.

[0045] In one implementation, the protruding portion of the outer cylinder relative to the first reel is a circumferentially open annulus. The first reel is provided with an adapter limiting structure or a connector limiting structure, which is positioned opposite to the opening of the annulus. This arrangement reduces the space occupied by the outer cylinder on the first reel surface, facilitating the placement of the adapter limiting structure and connector limiting structure. It also prevents the distance between the adapter limiting structure / connector limiting structure and the outer cylinder from being too close, which could prevent the portion of the outer cylinder opposite to the adapter limiting structure / connector limiting structure from being able to wind the optical cable.

[0046] In one implementation, among the multiple teeth, the spacing between two teeth adjacent to and arranged on both sides of the reference line is greater than the spacing between other adjacent teeth. The reference line extends radially along the cable reel and is perpendicular to the length direction of the adapter fixed by the adapter limiting structure, or perpendicular to the length direction of the connector fixed by the connector limiting structure. This avoids tooth interference with the adapter or connector.

[0047] In one implementation, the cable reel includes a first cable reel and a second cable reel arranged axially, with the first and second cable reels positioned on opposite sides of the first reel and the second cable reel closer to the top plate. One of the top plate and the second cable reel is provided with a third locking structure, and the other with a fourth locking structure. Because the second cable reel is closer to the top plate, the dimensions of the third and fourth locking structures in the thickness direction of the fiber optic access box are smaller, resulting in higher structural strength.

[0048] Thirdly, this application provides a fiber optic access box assembly. The fiber optic access box assembly includes an outer cable reel and a fiber optic access box as described in either the first or second aspect. The outer cable reel includes a third reel, a fourth reel, and an outer cable tube, with the third and fourth reels located at both ends of the outer cable tube. The fiber optic access box is fixed inside the outer cable tube, and a portion of the fiber optic cable of the access box is wound around the outer wall of the outer cable tube. The outer cable reel can be discarded after the fiber optic access box is wall-mounted.

[0049] The technical solution provided in this application extends the length of the optical cable carried by the optical fiber access box by winding a portion of the optical cable around the outer wall of the outer cable reel, which is beneficial for expanding the application scenarios of the optical fiber access box. Simultaneously, by placing the optical fiber access box inside the outer cable reel, the space occupied by the optical fiber access box assembly is approximately the same as the space occupied by the outer cable reel, reducing the space occupied by the optical fiber access box assembly and facilitating its packaging and transportation.

[0050] In one implementation, the outer cable reel has a second fiber channel on its wall. A portion of the optical cable from the fiber optic access box passes through this second fiber channel and is wrapped around the outer wall of the outer cable reel. The second fiber channel facilitates the exit of a portion of the optical cable from the inside of the outer cable reel and its wrapping around its outer wall. Attached Figure Description

[0051] Figure 1 This is a schematic diagram illustrating an application scenario of a fiber optic terminal box provided in an embodiment of this application;

[0052] Figure 2 This is an external view of a fiber optic terminal box provided in an embodiment of this application;

[0053] Figure 3 This is an exploded view of the first type of fiber optic terminal box provided in the embodiments of this application;

[0054] Figure 4 This is a schematic diagram of the internal structure of the first type of fiber optic terminal box provided in this application embodiment;

[0055] Figure 5 This is a schematic diagram of the first type of fiber optic terminal box in its initial state, provided in an embodiment of this application.

[0056] Figure 6 This is a schematic diagram of the first type of fiber optic terminal box provided in the embodiment of this application during the fiber optic cable length adjustment process;

[0057] Figure 7 This is a schematic diagram of the first type of fiber optic terminal box after the fiber optic cable length adjustment is completed, as provided in the embodiments of this application;

[0058] Figure 8 This is an exploded view of the second type of fiber optic terminal box provided in the embodiments of this application;

[0059] Figure 9 This is a schematic diagram of the internal structure of the second type of fiber optic terminal box in its initial state, provided in an embodiment of this application.

[0060] Figure 10 This is a schematic diagram of the second type of fiber optic terminal box after the fiber optic cable length adjustment provided in the embodiments of this application;

[0061] Figure 11 This is a schematic diagram of a cable reel provided in an embodiment of this application;

[0062] Figure 12 This is a cross-sectional view of the bottom shell and cable reel provided in the embodiments of this application;

[0063] Figure 13 This is a top view of the internal structure of the second fiber optic terminal box provided in the embodiments of this application;

[0064] Figure 14 This is a schematic diagram of an adapter fixing method provided in an embodiment of this application;

[0065] Figure 15 This is a schematic diagram of a bottom shell provided in an embodiment of this application;

[0066] Figure 16 This is a schematic diagram of the first type of fixed shaft and cable drum provided in the embodiments of this application;

[0067] Figure 17 This is a schematic diagram of the second type of fixed shaft and cable drum provided in the embodiments of this application;

[0068] Figure 18 This is a schematic diagram of the third type of fixed shaft and cable drum provided in the embodiments of this application;

[0069] Figure 19 This is a schematic diagram of a fixed shaft and a rubber ring provided in an embodiment of this application;

[0070] Figure 20 This is a schematic diagram of the fourth type of fixed shaft and cable drum provided in the embodiments of this application;

[0071] Figure 21 This is a schematic diagram of a rubber ring provided in an embodiment of this application;

[0072] Figure 22 This is a schematic diagram of a bottom shell provided in an embodiment of this application;

[0073] Figure 23 This is a schematic diagram of a cable reel provided in an embodiment of this application;

[0074] Figure 24 This is a schematic diagram of a first collision structure and a second collision structure provided in an embodiment of this application;

[0075] Figure 25 This is a schematic diagram of a top cover provided in an embodiment of this application;

[0076] Figure 26 This is a schematic diagram of the internal structure of the first type of fiber optic terminal box provided in this application embodiment;

[0077] Figure 27 This is a schematic diagram illustrating the cooperation between a third locking structure and a fourth locking structure provided in an embodiment of this application;

[0078] Figure 28 This is a cross-sectional view of a cable reel provided in an embodiment of this application;

[0079] Figure 29 This is a schematic diagram of another cable reel provided in an embodiment of this application;

[0080] Figure 30 This is a schematic diagram of another top cover provided in an embodiment of this application;

[0081] Figure 31 This is a schematic diagram of another cable reel provided in an embodiment of this application;

[0082] Figure 32 This is a schematic diagram of another top cover provided in an embodiment of this application;

[0083] Figure 33 This is a schematic diagram of the second type of fiber optic terminal box provided in this application switching from an unlocked state to a locked state;

[0084] Figure 34 This is a partial schematic diagram of the second type of fiber optic terminal box provided in this application switching from an unlocked state to a locked state;

[0085] Figure 35 This is a schematic diagram of the first locking member provided in the embodiments of this application;

[0086] Figure 36 This is a schematic diagram of the fit between the rotating shaft and the first rotating shaft groove of the first locking member provided in the embodiments of this application;

[0087] Figure 37 This is a schematic diagram of the internal structure of the third type of fiber optic terminal box provided in the embodiments of this application;

[0088] Figure 38 This is a schematic diagram of the third type of fiber optic terminal box provided in this application switching from an unlocked state to a locked state;

[0089] Figure 39 This is a schematic diagram of a fixed shaft provided in an embodiment of this application;

[0090] Figure 40 This is a schematic diagram of the second locking member provided in the embodiments of this application;

[0091] Figure 41 This is a schematic diagram illustrating the cooperation between the fixed shaft and the second locking member provided in the embodiments of this application;

[0092] Figure 42 This is a partial schematic diagram of the third type of fiber optic terminal box provided in this application switching from an unlocked state to a locked state;

[0093] Figure 43 This is a schematic diagram of the internal structure of the fourth type of fiber optic terminal box provided in the embodiments of this application;

[0094] Figure 44 This is a schematic diagram of the fourth type of fiber optic terminal box provided in this application switching from an unlocked state to a locked state;

[0095] Figure 45 This is an assembly diagram of a bottom shell and a locking component provided in an embodiment of this application;

[0096] Figure 46 This is a schematic diagram of the third locking member provided in the embodiments of this application;

[0097] Figure 47 This is an assembly diagram of a fixed shaft and a locking component provided in an embodiment of this application;

[0098] Figure 48 This is an assembly diagram of a fixed shaft and a locking component provided in an embodiment of this application;

[0099] Figure 49 This is a cross-sectional view of a cable reel provided in an embodiment of this application;

[0100] Figure 50 This is a schematic diagram of a fiber optic access box assembly provided in an embodiment of this application;

[0101] Figure 51 This is a schematic diagram of an external cable reel provided in an embodiment of this application;

[0102] Figure 52This is a schematic diagram of another fiber optic access box assembly provided in an embodiment of this application.

[0103] Legend

[0104] 100. Fiber distribution box; 200. Fiber optic terminal box; 300. External cable reel; 301. Third reel; 302. Fourth reel; 303. External cable tube; 304. Second fiber channel; 305. Mounting hole; 306. Cable tie; 400. First locking structure.

[0105] 1. Bottom shell; 11. Bottom plate; 111. Second opening; 112. Adapter slot; 113. First collision structure; 114. Second recess; 115. First fiber routing channel; 12. Fixed shaft; 120. Opening; 121. Protrusion; 122. Second tooth; 123. Second rotating shaft groove; 124. Second limiting protrusion; 125. Clearance hole; 126. Side wall; 127. End wall; 1271. End wall hole; 1272. Fifth limiting groove; 1273. Sixth limiting groove; 128. Indicator mark; 13. Enclosure; 14. Elastic buckle; 141. Snap-fit ​​protrusion; 142. Matching protrusion; 15. Rubber ring; 151. Elastic protrusion.

[0106] 2. Top cover, 21. Top plate, 210. QR code, 211. Fourth locking structure, 22. Enclosure, 221. First opening, 222. Third opening;

[0107] 3. Cable reel; 31. First reel; 311. First fiber channel; 3111. First channel section; 3112. Second channel section; 32. Second reel; 321. Second collision structure; 33. Cable reel cylinder; 330. Third tooth; 331. First cable reel section; 3311. Annular protrusion; 3312. Annular gasket; 332. Second cable reel section; 3321. Snap-fit ​​hole; 3322. First shaft groove; 3323. First limiting groove; 3324. Second limiting groove; 333. Inner cylinder; 3330. Third locking mechanism. Structure, 3331, First tooth, 334, Connecting structure, 335, Outer cylinder, 34, Fiber blocking tooth, 341, Fiber blocking protrusion, 35, Barrier wall, 36, Adapter limiting structure, 360, Shielding structure, 361, Fourth baffle, 362, Fifth baffle, 363, Sixth baffle, 364, Seventh baffle, 365, Protrusion, 366, First recess, 37, Connector limiting structure, 371, First baffle, 372, Second baffle, 373, Third baffle, 38, Fiber blocking plate, 380, Second fiber routing groove;

[0108] 4. Adapter; 40. Optical interface; 41. Protruding structure;

[0109] 5. Locking component; 51. Main body; 511. First part; 5110. Locking indicator; 512. Second part; 5120. Unlocking indicator; 52. Rotating shaft; 521. First shaft section; 5211. First limiting protrusion; 522. Second shaft section; 53. Second locking structure; 54. Hook; 55. Limiting plate; 551. Third limiting groove; 552. Fourth limiting groove; 56. First limiting part; 57. Second limiting part; 58. Middle part; 59. Third limiting protrusion;

[0110] 6. Optical cable; 61. First connector; 611. Tail sheath; 62. Second connector;

[0111] 7. Cable guide head. Detailed Implementation

[0112] A fiber optic terminal box (ATB) provides an optical interface for users indoors, which can be used to connect to connectors of optical network equipment. This optical network equipment can be an optical network unit (ONU) or an optical network terminal (ONT) to achieve Fiber to the Home (FTTH), Fiber to the Office (FTTO), or Fiber to the Room (FTTR). Of course, this optical interface can also connect to other fiber optic terminal boxes.

[0113] Figure 1 A schematic diagram illustrating an application scenario for a fiber optic terminal box is shown. For example... Figure 1 As shown, two fiber optic terminal boxes 200 are installed indoors. The upper-level fiber optic terminal box 200 is connected to the fiber distribution box 100 via optical cable 6, and the lower-level fiber optic terminal box 200 is connected to the upper-level fiber optic terminal box 200 via optical cable 6. The lower-level fiber optic terminal box 200 is equipped with an optical interface 40 (not shown in the figure) for connecting to connectors for optical network equipment. The fiber distribution box 100 can also be called a fibercable distribution box (FDB) or fiber access terminal (FAT), and can be installed in the corridor. The optical cable 6 can also be called an optical fiber.

[0114] Because the distance between the fiber distribution box 100 and the upstream fiber optic terminal box 200, and the distance between the upstream fiber optic terminal box 200 and the downstream fiber optic terminal box 200 are uncertain, the length of the optical cable 6 required between the fiber distribution box 100 and the fiber optic terminal box 200, as well as the length of the optical cable 6 required between the two fiber optic terminal boxes 200, are uncertain.

[0115] Furthermore, for ease of on-site construction, fiber optic cable 6 is generally pre-connected. The two ends of the pre-connected cable have connectors pre-connected. This eliminates the need for on-site fiber splicing; simply connect one end of fiber optic cable 6 to the fiber distribution box 100 and the other end to the fiber optic terminal box 200. Alternatively, connect one end of fiber optic cable 6 to the upstream fiber optic terminal box 200 and the other end to the downstream fiber optic terminal box 200, which is quite convenient. However, the length of the pre-connected cable is rarely exactly the same as the required length of fiber optic cable 6. This results in fiber optic cable 6 being generally too long, making storage inconvenient and unsightly.

[0116] In view of the above-mentioned technical problems, this application provides an optical fiber terminal box 200. Figure 2 An external view of the fiber optic terminal box 200 is shown. (As shown...) Figure 2 As shown, the fiber optic terminal box 200 includes an optical cable 6, and one end of the optical cable 6 is provided with a first connector 61. Figure 2 (Not shown in the image), the other end is provided with a second connector 62, and the first connector 61 is optically connected to the optical interface 40, thereby realizing the optical connection between the second connector 62 and the optical interface 40. The optical cable 6 can be pulled outward to the required length as needed, and the excess length of the optical cable 6 can be stored inside the optical fiber terminal box 200, thereby improving the aesthetics and reliability of the optical cable 6 wiring.

[0117] in, Figure 2 The fiber optic terminal box 200 shown can be Figure 1 The two fiber optic terminal boxes 200 are configured such that the second connector 62 of the upper-level fiber optic terminal box 200 is connected to the fiber distribution box 100, and the optical interface 40 of the upper-level fiber optic terminal box 200 is connected to the second connector 62 of the optical cable 6 of the lower-level fiber optic terminal box 200. The optical interface 40 of the lower-level fiber optic terminal box 200 is used to connect indoor optical network equipment. It should be noted that the fiber optic terminal box 200 provided in this embodiment is not limited to applications in [specific applications]. Figure 1 In the scenario shown, the fiber optic terminal box 200 can also be applied to other scenarios that require the provision of an optical interface 40.

[0118] The structure of the fiber optic terminal box 200 provided in the embodiments of this application will be described by way of example below. Figure 3 An exploded view of the first type of fiber optic terminal box 200 provided in an embodiment of this application is shown. Figure 4 This paper shows an internal structural diagram of the first type of fiber optic terminal box 200 provided in an embodiment of this application, wherein... Figure 4 The cable body of optical cable 6 is hidden inside. For example... Figure 3 and Figure 4As shown, the fiber optic terminal box 200 includes a housing (including a bottom shell 1 and a top cover 2), a cable reel 3, and an adapter 4. The cable reel 3 is rotatably disposed inside the housing. The cable reel 3 is used to wind the optical cable 6, and the two ends of the optical cable 6 are respectively provided with a first connector 61 and a second connector 62. The second connector 62 is used to connect to the fiber distribution box 100 or other optical access devices, and the first connector 61 is used to connect to the adapter 4, which has an optical interface 40. During the process of the user pulling out the optical cable 6, the cable reel 3 can rotate and release the optical cable 6. After stopping the pulling of the optical cable 6, the excess length of the optical cable 6 can be wound on the cable reel 3, realizing the storage of the excess optical cable 6. Among them, the first connector 61 can be an LC connector, the adapter 4 can be an LC adapter, and the second connector 62 can be an LC connector. The optical cable 6 can be an optical cable with an adhesive layer or a transparent optical cable with adhesive backing.

[0119] Below, in conjunction with Figures 5-7 The installation process of the first type of fiber optic terminal box 200 provided in the embodiments of this application will be described by way of example.

[0120] Figure 5 This diagram illustrates the first type of fiber optic terminal box 200 in its initial state, which can be understood as the factory-shipped state of the fiber optic terminal box 200. Figure 5 As shown, in the initial state, the second connector 62 of the optical cable 6 is fixed to the bottom shell 1, and the first connector 61 is fixed to the cable reel 3.

[0121] Figure 6 This illustrates the state of the first type of fiber optic terminal box 200 during the fiber optic cable length adjustment process. That is, the state of the first type of fiber optic terminal box 200 during the user's pulling of the fiber optic cable 6. Figure 6 As shown, the user removes the second connector 62 from the bottom shell 1 and pulls the optical cable 6 outward. The cable reel 3 rotates in the direction of the arrow shown in the figure, releasing the optical cable 6. At the same time, the cable reel 3 drives the first connector 61, which is fixed to the cable reel 3, to rotate synchronously.

[0122] Figure 7 The image shows the state of the first type of fiber optic terminal box 200 after the fiber optic cable length adjustment is completed. (Example:) Figure 7 As shown, after the optical cable 6 is pulled out to the required length (at this time, the second connector 62 can already be connected to other optical access devices), the user removes the first connector 61 from the cable reel 3 and inserts it into one end of the adapter 4 fixed to the bottom shell 1. The other end of the adapter 4 forms the optical interface 40. Then, the user can close the top cover 2 onto the bottom shell 1, and the installation of the fiber optic terminal box 200 is completed (as shown). Figure 2 (As shown). Afterwards, the user can plug the connector of the optical network device into the optical interface 40 of the fiber optic terminal box 200.

[0123] As can be seen from the above, during the outward pulling of the optical cable 6, the first connector 61 needs to be mounted on the cable reel 3 and rotate synchronously with the cable reel 3. If the first connector 61 engages with the adapter 4 during the outward pulling of the optical cable 6, the cable reel 3 will not be able to rotate because the first connector 61 is fixed. If the optical cable 6 is pulled forcefully, the first connector 61 may be pulled out of the adapter 4, causing damage to the optical cable 6. Accordingly, as... Figure 4 As shown, the adapter 4 is fixed to the bottom shell 1, and the cable reel 3 is provided with a connector limiting structure 37, which is used to limit the first connector 61. Specifically, the connector limiting structure 37 limits the first connector 61 so that the first connector 61 will not be thrown out during the rotation of the cable reel 3. This can mean that the first connector 61 remains completely stationary, or that the first connector 61 can move but will not be thrown out.

[0124] Figure 8 An exploded view of a second type of fiber optic terminal box 200 provided in an embodiment of this application is shown. Figure 9 A schematic diagram of the internal structure of the second type of fiber optic terminal box 200 in its initial state is shown. Figure 10 A schematic diagram of the internal structure of the second type of fiber optic terminal box 200 after the fiber optic cable length adjustment is shown. Among them, Figure 9 and Figure 10 The cable body of optical cable 6 is hidden within it. From Figures 8-10 As can be seen, unlike the first type of fiber optic terminal box 200, in the initial state and during the fiber optic cable length adjustment process, the adapter 4 and the first connector 61 are fixed together to the cable reel 3 and can rotate synchronously with the cable reel 3. After the fiber optic cable 6 length adjustment is completed, the adapter 4 and the first connector 61 are then fixed together to the bottom shell 1. Correspondingly, as... Figure 10 As shown, the cable reel 3 is equipped with an adapter limiting structure 36, such as Figure 9 As shown, the bottom shell 1 is provided with an adapter slot 112. Both the adapter limiting structure 36 and the adapter slot 112 are used to fix the adapter 4.

[0125] like Figure 2 As shown, the portion of the housing corresponding to the optical interface 40 of the adapter 4 has a clearance opening to expose the optical interface 40. For example, this clearance opening is... Figure 3 and Figure 8 The first opening 221 is on the upper cover 2. The housing also has a cable threading opening for the optical cable 6 to pass through. For example, this cable threading opening is... Figure 3 The second opening 111 on the bottom shell 1. Alternatively, this opening is formed by... Figure 8 The second opening 111 on the bottom shell 1 and the third opening 222 on the top cover 2 are formed together. Additionally, as... Figure 9As shown, the fiber optic terminal box 200 may also include a cable guide head 7, which is used to sleeve one end of the second connector 62. In this way, when the second connector 62 needs to pass through a wall, the cable guide head 7 can provide good protection for the second connector 62, improving the wall-penetrating ability of the optical cable 6.

[0126] The structure of cable reel 3 will be described below as an example.

[0127] In some examples, such as Figure 3 and Figure 8 As shown, the cable reel 3 includes a first reel 31 and a cable tube 33. The cable tube 33 is used to wind the optical cable 6, and the first reel 31 is used to limit the optical cable 6. The adapter 4 or the first connector 61 can be fixed to the first reel 31.

[0128] In some examples, such as Figure 3 and Figure 8 As shown, the cable reel 3 also includes a second reel 32, with the first reel 31 and the second reel 32 axially spaced apart from each other on the cable reel 33. This allows the optical cable 6 to be better confined between the first reel 31 and the second reel 32. Furthermore, the optical cable 6 will not rub against the bottom shell 1 during the rotation of the cable reel 3.

[0129] In some examples, such as Figure 3 and Figure 8 As shown, the bottom shell 1 includes a bottom plate 11 and a fixed shaft 12, one end of which is connected to the bottom plate 11. The cable reel 33 is sleeved on the fixed shaft 12 and is rotatably connected to the fixed shaft 12.

[0130] In some examples, such as Figure 3 and Figure 8 As shown, the cable reel 33 includes at least a first cable reel 331, which is located between the first reel 31 and the second reel 32.

[0131] like Figure 3 and Figure 8 As shown, since the first reel 31 needs to fix the adapter 4 or the first connector 61, a section of optical cable 6 will be arranged above the second reel 32. The length of this section of optical cable 6 cannot be too short; otherwise, the first connector 61 may not be able to mate with one end of the adapter 4 fixed to the housing. In some examples, such as... Figure 3 and Figure 8 As shown, in order to manage the optical cable 6 above the first reel 31, the cable reel 33 also includes a second cable section 332, which is located above the first reel 31. Wherein, as... Figures 5-7As shown, the optical cable 6 is wound around the first cable reel 331 and the second cable reel 332. One end of the optical cable 6 wound around the first cable reel 331 is provided with a second connector 62, which is used to extend to the outside of the housing. One end of the optical cable 6 wound around the second cable reel 332 is provided with a first connector 61, which is used to fix to the first reel 31, or to plug into one end of the adapter 4 fixed to the housing.

[0132] In order to limit the movement of the optical cable 6 wound on the second cable section 332, in some examples, such as Figures 3-11 As shown in any of the accompanying drawings, the cable reel 3 further includes one or more fiber-blocking teeth 34, which are arranged around the second cable reel portion 332. The first end of each fiber-blocking tooth 34 connects to either the second cable reel portion 332 or the first reel 31, and the second end extends radially outward along the first reel 31. The space between the fiber-blocking tooth 34 and the first reel 31 is used to accommodate the optical cable 6. The fiber-blocking tooth 34 prevents the optical cable 6 from axially detaching from the second cable reel portion 332. Furthermore, by providing the fiber-blocking tooth 34 to extend from the inside out, it facilitates the easy removal of the optical cable 6 connected to the first connector 61 from the outer end of the fiber-blocking tooth 34 when the first connector 61 is mated with the adapter 4 fixed to the housing.

[0133] In some examples, such as Figures 3-10 As shown in any of the accompanying drawings, the cable reel 3 further includes one or more baffles 35, which are disposed at the outer edge of the first reel 31 and are located between the baffles 35 and the second reel cable portion 332 for accommodating the optical cable 6. The baffles 35 prevent the optical cable 6 from extending radially beyond the outer edge of the first reel 31, thus facilitating the winding of the optical cable 6 by the second reel cable portion 332.

[0134] In some examples, such as Figures 3-10 As shown in any of the accompanying drawings, one or more baffles 35 are circumferentially spaced on the first reel 31. When the first connector 61 is mated with the adapter 4 fixed to the housing, the optical cable 6 located on the first reel 31 can pass through the gap between two baffles 35, allowing the first connector 61 to be inserted into the adapter 4 fixed to the housing.

[0135] In some examples, such as Figures 3-10As shown in any of the accompanying drawings, a baffle 35 is provided at the end of the fiber-blocking tooth 34 away from the second cable reel 332, with a gap between the baffle 35 and the fiber-blocking tooth 34 for the optical cable 6 to pass through. In this way, the baffle 35 prevents the optical cable 6 from bypassing the fiber-blocking tooth 34, and the cooperation of the baffle 35 and the fiber-blocking tooth 34 provides better restraint for the optical cable 6. Furthermore, the gap between the baffle 35 and the fiber-blocking tooth 34 facilitates the optical cable 6 passing through this gap to escape the restraint of the fiber-blocking tooth 34 when the first connector 61 is connected to the adapter 4. It also facilitates the optical cable 6 passing through this gap when the second cable reel 332 is wound around the optical cable 6. The fiber-blocking tooth 34 extends through the corresponding baffle 35.

[0136] In addition to the technical solution of setting a retaining wall 35 for each fiber-blocking tooth 34, in other examples, such as Figure 9 As shown, at least one retaining wall 35 and a retaining tooth 34 are arranged in a staggered manner in the radial direction of the first disc 31.

[0137] In some examples, such as Figure 9 As shown, the angle between the blocking surface of the retaining wall 35 and the plane where the first plate 31 is located is 90°.

[0138] In other examples, the angle between the blocking surface of the barrier 35 and the plane containing the first reel 31 is less than 90 degrees. In this way, the barrier 35 can also serve to limit the axial movement of the optical cable 6.

[0139] Besides the technical solution of setting the retaining wall 35 at the outer edge of the first plate 31, in other examples, such as Figure 11 As shown, the second end of the fiber-blocking tooth 34 is provided with a fiber-blocking protrusion 341 facing the first reel 31. In this way, the fiber-blocking protrusion 341 can prevent the optical cable 6 from exceeding the outer edge of the first reel 31 in the radial direction, and can prevent the optical cable 6 from bypassing the fiber-blocking tooth 34. The fiber-blocking tooth 34 can better limit the position of the optical cable 6.

[0140] Additionally, to facilitate the extension of the optical cable 6 from the first cable section 331 to the second cable section 332, in some examples, such as Figures 3-11 As shown, the first reel 31 is equipped with a first fiber channel 311. (As indicated...) Figures 5-7 As shown, the first fiber channel 311 is used for the connection portion of the optical cable 6 wound on the first cable reel 331 and the optical cable 6 wound on the second cable reel 332 to pass through. Alternatively, the first fiber channel 311 is used for the optical cable 6 wound on the first cable reel 331 to extend to the second cable reel 332.

[0141] In some examples, such as Figures 5-7As shown, the first fiber channel 311 has an opening on the outer edge of the first reel 31. This allows the optical cable 6 to be threaded through the opening of the first fiber channel 311 when it is wound around the reel 3, without the first connector 61 needing to pass through it. This also reduces the need for the first fiber channel 311 to be excessively large, allowing for more flexible design.

[0142] In some examples, such as Figure 4 , Figure 9 and Figure 10 As shown, the first fiber channel 311 includes a first channel portion 3111 and a second channel portion 3112. The first channel portion 3111 extends radially along the first reel 31, with one end of the first channel portion 3111 having an opening at the outer edge of the first reel 31, and the other end connecting to the second channel portion 3112. The second channel portion 3112 extends circumferentially along the second reel cable portion 332. By providing the second channel portion 3112 extending circumferentially along the second reel cable portion 332, the optical cable 6 can be inclined in the second channel portion 3112, preventing excessive bending of the optical cable 6.

[0143] In other examples, the first fiber channel 311 may not have an opening at the outer edge of the first reel 31. In this case, the first connector 61 needs to pass through the first fiber channel 311, so the size of the first fiber channel 311 needs to be larger than the outer diameter of the first connector 61.

[0144] In some examples, such as Figures 3-10 As shown, the interior of the housing is provided with a surrounding wall 13, which is arc-shaped and surrounds the cable reel 3. The surrounding wall 13 can limit the optical cable 6 wound on the first cable reel 331. The surrounding wall 13 is not closed in the circumferential direction so that the optical cable 6 can pass through the surrounding wall 13.

[0145] In some examples, such as Figure 3 and Figure 8 As shown, the bottom shell 1 is provided with multiple (e.g., 3) walls 13, which are arranged at intervals in the circumference. There is a gap between two adjacent walls 13.

[0146] In some examples, such as Figure 12 As shown, the enclosure 13 is lower than the second reel 32. Furthermore, the outer diameter 2R1 of the second reel 32 is not less than the inner diameter 2R2 of the enclosure 13. This reduces the likelihood of the optical cable 6 jumping out of the gap between the enclosure 13 and the first reel 31, improving the reliability of the first reel cable section 331.

[0147] In other examples, such as Figures 3-7As shown, the wall 13 is higher than the lower surface of the first reel 31, which also reduces the possibility of the optical cable 6 jumping out from the gap between the wall 13 and the first reel 31.

[0148] In some examples, such as Figures 4-10 As shown, a first fiber optic cable tray 115 is provided on the bottom shell 1. The first fiber optic cable tray 115 is located outside the enclosure 13. After a part of the optical cable 6 passes through the opening of the enclosure 13, it passes through the first fiber optic cable tray 115 and connects to the second connector 62.

[0149] In some examples, such as Figures 3-7 As shown, the first fiber channel 115 is formed between the two plates. In other examples, such as... Figure 9 and Figure 10 As shown, the first fiber channel 115 is formed in front of a plate and a wall 13.

[0150] It should be noted that, as Figure 9 As shown, if the user pulls the optical cable 6 to a suitable length and does not remove the adapter 4 from the first reel 31 and install it on the bottom shell 1, but instead directly connects the connector of the optical network device's optical cable to the adapter 4, then an optical connection between the optical network device and the fiber optic terminal box 200 can also be achieved. However, on the one hand, the first opening 221 of the top cover 2 is relatively large, while the outer diameter of the optical cable is relatively small; it is unsightly for the smaller optical cable to pass through the large first opening 221. On the other hand, when the user needs to unplug the connector of the optical network device, the top cover 2 must be opened to operate. In fact, if the fiber optic terminal box 200 is used correctly, then... Figure 2 As shown, users can directly unplug the connector from the optical interface 40 of the fiber optic terminal box 200 without opening the top cover 2.

[0151] To prevent users from misusing the fiber optic terminal box 200, in some examples, such as Figure 13 and Figure 14 As shown, a shielding structure 360 ​​is provided on the second tray 32. The shielding structure 360 ​​is located in front of the end of the adapter 4 that is not connected to the first connector 61. The shielding structure 360 ​​is used to prevent the connector from directly mating with the adapter 4 located on the second tray 32. For example, if the first port of the adapter 4 is connected to the first connector 61, then the shielding structure 360 ​​is located in front of the second port of the adapter 4 and blocks the second port.

[0152] It should also be noted that, such as Figures 5-7As shown, when only the first connector 61 is fixed to the first reel 31 during the rotation of the cable reel 3, since the user cannot directly connect the connector of the optical network device to the first connector 61, the user generally will not misuse the fiber optic terminal box 200. Furthermore, since the adapter 4 is only fixed to the bottom shell 1, the user will easily think of removing the first connector 61 and plugging it into one end of the adapter 4. Therefore, by fixing only the first connector 61 to the cable reel 3, the user can be guided to use the fiber optic terminal box 200 correctly, thereby avoiding user misuse of the fiber optic terminal box 200.

[0153] During the process of the user pulling out the optical cable 6, the cable reel 3 will rotate and release the optical cable 6. At this time, the first connector 61 needs to rotate with the cable reel 3. Therefore, how to stably fix the first connector 61 to the cable reel 3 and prevent the first connector 61 from being thrown out during the rotation of the cable reel 3 is a key technical problem.

[0154] In some examples, such as Figure 4 As shown, a connector limiting structure 37 is provided on the first reel 31 of the cable reel 3. The connector limiting structure 37 is used to fix or limit the first connector 61.

[0155] In some examples, such as Figure 7 As shown, the connector limiting structure 37 includes a first baffle 371 and a second baffle 372, which are distributed on both sides of the first connector 61 and are interference-fitted with the first connector 61. This achieves the limiting of the first connector 61.

[0156] In some examples, such as Figure 7 As shown, there is one first baffle 371 and two second baffles 372.

[0157] In some examples, such as Figure 7 As shown, the connector limiting structure 37 also includes a third baffle 373, which is located in front of the first connector 61 and is used to prevent the first connector 61 from moving forward along the axial direction.

[0158] In some examples, such as Figure 4 As shown, the second cable reel 332 is a circumferentially open annular shape, and the opening of the annular shape is positioned opposite to the connector limiting structure 37. This arrangement reduces the space occupied by the second cable reel 332 on the surface of the first reel 31, facilitating the placement of the connector limiting structure 37 and preventing the distance between the connector limiting structure 37 and the second cable reel 332 from becoming too close, which could prevent the portion of the second cable reel 332 opposite to the connector limiting structure 37 from being able to wind the optical cable 6. The connector limiting structure 37 can be replaced by an adapter limiting structure 36 (e.g., ...). Figure 44 (As shown).

[0159] In some examples, such as Figure 4 As shown, when the first connector 61 is positioned within the connector limiting structure 37, there is a gap between the central axis of the first connector 61 and the second cable reel 332. This prevents the first connector 61 from protruding beyond the outer edge of the first reel 31, or reduces the size of the first connector 61 protruding beyond the outer edge of the first reel 31, thus fully utilizing the surface space of the first reel 31 to arrange the first connector 61. Furthermore, it also reduces the impact on the second cable reel 332's winding of the optical cable 6.

[0160] Understandably, when the axis of the first connector 61 coincides with the axis of the second cable reel 332 (for example, the central axis of the first connector 61 passes through the central axis of the second cable reel 332), the first connector 61 protrudes to its maximum size from the outer edge of the first reel 31. Moreover, one end of the first connector 61 will be close to the second cable reel 332, which may affect the winding of the optical cable 6 by the second cable reel 332.

[0161] In some examples, such as Figure 4 As shown, one of the multiple baffles 35 is spaced apart from the tail sheath 611 of the first connector 61. In this way, the baffle 35 can precisely limit the optical cable 6 extending from the tail sheath 611 of the first connector 61.

[0162] In other examples, such as Figure 4 As shown, the first reel 31 is also provided with a fiber baffle 38. The baffle wall 35 and the fiber baffle 38 are arranged opposite to each other to form a second fiber routing groove 380. The second fiber routing groove 380 is used to accommodate the optical cable 6 extending from the tail sheath 611 of the first connector 61.

[0163] It should be noted that the connector limiting structure 37 described above can be replaced by the adapter limiting structure 36. The adapter limiting structure 36 is used to fix the adapter 4, and the first connector 61 can be inserted into the adapter 4, so that the first connector 61 can be stably fixed to the first disc 31. The adapter limiting structure 36 will be described below as an example.

[0164] In some examples, such as Figure 10 and Figure 13 As shown, the adapter limiting structure 36 includes multiple protrusions arranged around the adapter 4 to limit the movement of the adapter 4 in the plane of the first disc 31. The protrusions can be baffles (such as...). Figure 10 and Figure 13 (as shown) or a column.

[0165] In some examples, such as Figure 10 and Figure 13As shown, the multiple protruding structures include a fourth baffle 361 and a fifth baffle 362. In the width direction A of the adapter 4, the adapter 4 is arranged between the fourth baffle 361 and the fifth baffle 362, thus the fourth baffle 361 and the fifth baffle 362 can restrict the movement of the adapter 4 in the width direction A. The multiple baffles also include a sixth baffle 363 and a seventh baffle 364. In the length direction B of the adapter 4, a portion of the adapter 4 is located between the sixth baffle 363 and the seventh baffle 364, thus the sixth baffle 363 and the seventh baffle 364 can restrict the movement of the adapter 4 in the length direction B. Therefore, through the arrangement of the fourth baffle 361, the fifth baffle 362, the sixth baffle 363, and the seventh baffle 364, the movement of the adapter 4 in any direction on the plane of the first disc 31 can be restricted.

[0166] In some examples, such as Figure 13 As shown, a sixth baffle 363 is located at the end of the adapter 4 not connected to the second connector 62. The sidewall of the adapter 4 perpendicular to the width direction A includes a protruding structure 41, and a seventh baffle 364 is located on the side of the protruding structure 41 away from the end of the adapter 4 not connected to the second connector 62. Thus, the sixth baffle 363 and the seventh baffle 364 can restrict the movement of the adapter 4 in the length direction B.

[0167] In some examples, such as Figure 13 As shown, the fourth baffle 361 and the sixth baffle 363 are connected to form an L-shaped baffle. The fifth baffle 362 and the seventh baffle 364 are connected to form an L-shaped baffle.

[0168] To prevent adapter 4 from disengaging from the multiple baffles in a direction perpendicular to the first reel 31 (i.e., the axial direction of cable reel 3), in some examples, such as Figure 10 and Figure 14 As shown, at least one of the baffles (the sixth baffle 363 in the figure) has a sidewall including a protrusion 365. In direction C, perpendicular to the plane of the first disc 31, a portion of the adapter 4 is positioned between the protrusion 365 and the first disc 31. Thus, the adapter 4 is positioned both in the plane of the first disc 31 and in the direction perpendicular to the plane of the first disc 31. The adapter 4 can be stably fixed to the cable reel 3. Correspondingly, the first connector 61, which is inserted into one end of the adapter 4, can also be stably fixed to the cable reel 3, reducing the possibility that the first connector 61 and the adapter 4 may be thrown out during the rotation of the cable reel 3.

[0169] In some examples, such as Figure 14As shown, protrusion 365 extends into the interface (second port) of the end of adapter 4 not connected to the first connector 61. Thus, the height of the baffle or column containing protrusion 365 (i.e., the sixth baffle 363) does not need to exceed the height of adapter 4. The lower the height of the baffle, the higher its structural strength and the less impact it has on the thickness of the fiber optic terminal box 200. The height direction is indicated by C. Furthermore, protrusion 365 and the baffle containing it prevent users from directly plugging the connector of the optical network device into the adapter 4 fixed to the cable reel 3, avoiding incorrect use of the fiber optic terminal box 200. That is, protrusion 365 and the sixth baffle 363 can be used as a shielding structure 360, or described as the sixth baffle 363 and the shielding structure 360 ​​being the same structure.

[0170] Of course, in other examples, the blocking structure 360 ​​may not be used as a limiting structure. For example, the blocking structure 360 ​​is arranged at a distance from the second port of the adapter 4.

[0171] In some examples, such as Figure 14 As shown, protrusion 365 is located at the end of adapter 4 that is not connected to the first connector 61. Figure 13 and Figure 14 As shown, the cable reel 3 also includes a limiting strip (e.g., a fiber-blocking tooth 34). In direction C, perpendicular to the plane of the first reel 31, a portion of the structure of the first connector 61 is confined between the limiting strip and the first reel 31. Thus, in direction C, perpendicular to the first reel 31, both ends of the assembly consisting of the adapter 4 and the first connector 61 are confined by the protrusion 365 and the fiber-blocking tooth 34, respectively, improving the reliability of the confinement of the adapter 4 and the first connector 61.

[0172] In some examples, such as Figure 13 As shown, in the direction perpendicular to the plane where the first disc 31 is located, the projection of the fiber-stopping tooth 34 and the projection of the first connector 61 partially coincide, and the projection of the central axis I of the first connector 61 does not intersect with the projection of the fiber-stopping tooth 34. Thus, when it is necessary to detach the adapter 4 along with the first connector 61, as... Figure 14 As shown in the diagram, following the direction of the arrow, the first connector 61 is lifted and passed over the retaining tooth 34, thereby releasing the restriction imposed by the retaining tooth 34 and the protrusion 365 on the assembly formed by the adapter 4 and the first connector 61. Afterwards, the adapter 4, along with the first connector 61, can be easily detached from the first tray 31.

[0173] In some examples, such as Figure 10 and Figure 14As shown, the first disc 31 has a first recess 366, and multiple baffles (or protruding structures) are arranged around the first recess 366. Part of the adapter 4 is located in the first recess 366. The first recess 366 further improves the reliability of the adapter 4 in limiting its position in the plane of the first disc 31.

[0174] In some examples, such as Figure 9 and Figure 13 As shown, when adapter 4 is fixed to adapter limiting structure 36, there is a gap between the central axis of adapter 4 and the second cable reel 332. This prevents adapter 4 or first connector 61 from protruding beyond the outer edge of the first reel 31, or reduces the size of adapter 4 or first connector 61 protruding beyond the outer edge of the first reel 31, making full use of the reel surface space of the first reel 31 to arrange adapter 4 and first connector 61. Furthermore, it also reduces the impact on the second cable reel 332's winding of optical cable 6.

[0175] Understandably, when the central axis of adapter 4 intersects with the second cable reel 332, the adapter 4 or the first connector 61 protrudes to its maximum size from the outer edge of the first reel 31. Furthermore, one end of adapter 4 or the first connector 61 will be close to the second cable reel 332, potentially affecting the winding of the optical cable 6 around the second cable reel 332. The central axis of adapter 4 is the axis of the optical channel of adapter 4.

[0176] In some examples, such as Figure 13 As shown, a retaining wall 35 is spaced apart from the tail sheath 611 of the first connector 61. The retaining wall 35 is used to abut against the optical cable 6 extending from the tail sheath 611 of the first connector 61. The tail sheath 611 of the first connector 61 is located near the outer edge of the first reel 31 (e.g., ...). Figure 13 As shown), therefore, by setting the barrier 35 and the tail sheath 611 of the first connector 61 at intervals, the optical cable 6 extending from the tail sheath 611 of the first connector 61 can be precisely limited.

[0177] In some examples, such as Figure 13 As shown, the tail end of the first connector 61 corresponds to a baffle 35, and the fiber-blocking tooth 34 used to limit the first connector 61 also corresponds to a baffle 35. There is a gap between the two baffles 35 for the optical cable 6 to pass through.

[0178] In some examples, such as Figure 25 As shown, a QR code 210 can be installed on the top plate 21 of the upper cover 2. When a user scans the QR code 210 with a terminal device, they can obtain the instruction manual or installation manual information for the fiber optic terminal box 200.

[0179] During the process of the user pulling out the optical cable 6, the optical cable 6 drives the cable reel 3 to rotate. Ideally, when the user stops pulling out the optical cable 6, the cable reel 3 should stop rotating immediately. However, in some cases, such as when the user quickly pulls out the optical cable 6 and stops abruptly, the cable reel 3 may continue to rotate at an angle due to inertia. The continued rotation of the cable reel 3 will not cause the optical cable 6 to continue to extend outward, but will instead cause the optical cable 6 inside the housing to break, which may lead to the cable reel 3 getting stuck, the optical cable 6 getting tangled, or even damage to the optical cable 6.

[0180] In view of the above-mentioned technical problems, this embodiment of the application provides an elastic structure between the fixed shaft 12 and the cable reel 33. The elastic structure is connected to the base plate 11 or the fixed shaft 12 and abuts against the inner wall of the cable reel 33 (or is called an interference fit). In this way, during the rotation of the cable reel 3, the elastic structure will rub against the inner wall of the cable reel 33, thereby increasing the rotational resistance of the cable reel 3 and reducing the angle at which the cable reel 3 continues to rotate due to inertia after the optical cable 6 is stopped, thus reducing the possibility of the optical cable 6 breaking. Furthermore, by providing an elastic structure that abuts against the inner wall of the cable reel 33, it is possible to prevent the cable reel 3 from being jammed and unable to rotate.

[0181] The following provides an exemplary description of how to implement elastic structures. In some examples, such as... Figure 15 As shown, the side wall of the fixed shaft 12 has an opening 120, and an elastic buckle 14 is provided in the opening 120. The elastic buckle 14 extends axially along the fixed shaft 12. One end of the elastic buckle 14 is connected to the wall of the opening 120 or to the base plate 11, and the other end is suspended. The elastic buckle 14 abuts against the inner wall of the cable coil 33 (or is called an interference fit). Since only one end of the elastic buckle 14 is connected to the base plate 11 or the wall of the opening 120, while the other end is suspended, the elastic buckle 14 can be radially ( Figure 15 The elastic buckle 14, which expands and contracts elastically (in the direction of the middle arrow), is elastic and forms the aforementioned elastic structure. During the rotation of the cable reel 3, the elastic buckle 14 rubs against the cable drum 33, thereby increasing the rotational resistance of the cable reel 3.

[0182] In some examples, such as Figures 16-18 As shown, the elastic buckle 14 includes a mating protrusion 142, which abuts against the inner wall of the cable reel 33. During the rotation of the cable reel 3, the mating protrusion 142 rubs against the inner wall of the cable reel 33.

[0183] In some examples, such as Figure 16 and Figure 17 As shown, the inner wall of the cable reel 33 is provided with an annular protrusion 3311, which abuts against the cooperating protrusion 142. During the rotation of the cable reel 3, the cooperating protrusion 142 rubs against the annular protrusion 3311.

[0184] In some examples, such as Figure 16 and Figure 17 As shown, the mating protrusion 142 hooks onto the annular protrusion 3311 to achieve axial engagement between the elastic buckle 14 and the cable reel 33. That is, the mating protrusion 142 also serves to engage the protrusion 141, and the elastic buckle 14 also serves as a latch.

[0185] In other examples, such as Figure 18 As shown, the inner wall of the cable reel 33 is provided with an annular protrusion 3311, and the elastic buckle 14 also includes a snap-fit ​​protrusion 141. The snap-fit ​​protrusion 141 hooks onto the annular protrusion 3311 to achieve axial snap-fit ​​between the elastic buckle 14 and the cable reel 33. Along the axial direction of the fixed shaft 12, the mating protrusion 142 and the snap-fit ​​protrusion 141 are arranged on both sides of the annular protrusion 3311.

[0186] In other examples, the snap fastener containing the snap-fit ​​protrusion 141 and the elastic buckle 14 containing the mating protrusion 142 are two separate components. The snap fastener is specifically designed to achieve axial snap-fit ​​between the cable reel 3 and the fixed shaft 12, while the elastic buckle 14 is specifically designed to have an interference fit with the inner wall of the cable reel 33.

[0187] In some examples, the elastic buckle 14 abuts against the inner wall of the cable reel 33 radially, or the elastic buckle 14 is under pressure radially in the cable reel 33.

[0188] In some examples, to increase the friction between the elastic buckle 14 and the inner wall of the cable reel 33, such as... Figure 17 As shown, the fiber optic terminal box 200 also includes an annular gasket 3312, which is attached to the inner wall of the cable reel 33 and has an interference fit with the elastic buckle 14. In some examples, such as... Figure 17 As shown, the annular gasket 3312 is attached to the annular protrusion 3311 and has an interference fit with the snap-fit ​​protrusion 141. In other examples, the annular gasket 3312 is attached to the inner wall of the cable reel 33 and has an interference fit with the mating protrusion 142. This further reduces the angle at which the cable reel 3 continues to rotate due to inertia after the optical cable 6 is stopped being pulled.

[0189] In some examples, there are multiple resilient buckles 14, arranged circumferentially along the fixed axis 12. For example, ... Figures 16-18 As shown, there are two elastic buckles 14, which are positioned opposite each other.

[0190] Besides the technical solution of setting the elastic buckle 14 as an elastic structure to abut against the inner wall of the cable cylinder 33, in other examples, such as Figure 19 and Figure 20 As shown, the elastic structure is a rubber ring 15, which is sleeved on the fixed shaft 12 and abuts against the inner wall of the cable drum 33 (or is called an interference fit).

[0191] In this way, during the rotation of the cable reel 3, the rubber ring 15 will rub against the cable drum 33, thereby increasing the rotational resistance of the cable reel 3 and reducing the angle at which the cable reel 3 continues to rotate due to inertia after the optical cable 6 is stopped. For example, such as... Figure 19 and Figure 20 As shown, the rubber ring 15 is sleeved on one end of the base plate 11 connected to the fixed shaft 12.

[0192] This application does not limit the position of the interference fit between the rubber ring 15 and the inner wall of the cable coil 33. In some examples, the entire outer periphery of the rubber ring 15 is interference-fitted with the inner wall of the cable coil 33. In other examples, to prevent excessive friction between the rubber ring 15 and the inner wall of the cable coil 33, which could make it difficult for the cable coil 33 to rotate, such as... Figure 19 As shown, the outer wall of the fixed shaft 12 has one or more protrusions 121, and the rubber ring 15 surrounds the protrusions 121. The protrusions 121 press the rubber ring 15 outward, so that part of the structure of the rubber ring 15 is in interference fit with the inner wall of the cable drum 33, while other parts are not in interference fit with the inner wall of the cable drum 33.

[0193] In other examples, such as Figure 21 As shown, the outer peripheral wall of the rubber ring 15 is provided with one or more elastic protrusions 151, which are used to abut against the inner wall of the cable reel 33. In this way, the friction between the rubber ring 15 and the cable reel 33 can be prevented from being too great, which would cause the cable reel 33 to get stuck and unable to rotate.

[0194] Besides the technical solution of setting an elastic structure with an interference fit between the inner wall of the cable reel 33, in other examples, such as Figure 22 As shown, the base plate 11 is provided with one or more first collision structures 113. The multiple first collision structures 113 can be arranged circumferentially. Figure 23 As shown, one or more second collision structures 321 are provided on the side of the second disc 32 facing the base plate 11. For example... Figure 24 As shown, during the rotation of the cable reel 3, the second collision structure 321 periodically collides with the first collision structure 113. When the first collision structure 113 collides with the second collision structure 321, the rotational resistance of the cable reel 3 increases, thereby reducing the angle at which the cable reel 3 continues to rotate due to inertia after the optical cable 6 stops being pulled, thus reducing the possibility of the optical cable 6 breaking or being damaged.

[0195] For example, when the user stops pulling the optical cable 6, the cable reel 3 continues to rotate a small angle due to inertia. Then, the first collision structure 113 collides with the second collision structure 321, and the rotational resistance of the cable reel 3 increases, making it unable to continue rotating.

[0196] The embodiments of this application do not limit the form of the first collision structure 113 and the second collision structure 321. In some examples, such as Figures 22-24As shown, both the first collision structure 113 and the second collision structure 321 are bosses. In other examples, one of the first collision structure 113 and the second collision structure 321 is a groove structure, and the other is a protrusion structure. In this case, the collision of the second collision structure 321 with the first collision structure 113 means that the protrusion structure falls into the groove structure and collides with the groove wall of the groove structure.

[0197] In some examples, such as Figure 22 As shown, the base plate 11 is provided with a second sink 114, and part of the structure of the first plate 31 is located in the second sink 114. Among them, a plurality of first collision structures 113 can be provided at the bottom of the second sink 114.

[0198] In some examples, such as Figures 22-24 As shown, the base plate 11 is provided with a plurality of first collision structures 113 evenly arranged circumferentially, and the second disc 32 is provided with a plurality of second collision structures 321 evenly arranged circumferentially on the side facing the base plate 11. During the rotation of the cable disc 3, the plurality of second collision structures 321 are used to simultaneously collide with the plurality of first collision structures 113 respectively. In this way, the possibility of the cable disc 3 tilting when the second collision structure 321 collides with the first collision structure 113 can be reduced.

[0199] After the fiber optic terminal box 200 is wall-mounted, if the user accidentally pulls the optical cable 6, the first connector 61, already plugged into the adapter 4 fixed to the bottom shell 1, will not rotate with the cable reel 3. Furthermore, the cable reel 3 will also be unable to rotate due to the limiting effect of the first connector 61. However, if the user applies excessive force, the cable reel 3 will still rotate, potentially causing the first connector 61 to detach from the adapter 4 and damage the optical cable 6.

[0200] In view of the above-mentioned technical issues, such as Figures 25-27 As shown, in this embodiment, one of the inner wall of the upper cover 2 and the cable reel 3 is provided with a third locking structure 3330, and the other is provided with a fourth locking structure 211. When the upper cover 2 is closed on the bottom shell 1, the fourth locking structure 211 and the third locking structure 3330 are engaged circumferentially in the cable reel 3. Subsequently, if the user accidentally pulls the optical cable 6, the cable reel 3 cannot rotate because the fourth locking structure 211 and the third locking structure 3330 are engaged circumferentially. Furthermore, since the upper cover 2 limits the rotation of the cable reel 3, the first connector 61 will not be subjected to force, and therefore the first connector 61 will not be pulled out of the adapter 4, reducing the possibility of damage to the optical cable 6.

[0201] In some examples, such as Figure 26As shown, there are multiple third locking structures 3330, which are arranged circumferentially along the cable reel 3. By providing multiple third locking structures 3330 arranged circumferentially along the cable reel 3, the cable reel 3 can be locked in more positions.

[0202] In some examples, such as Figures 26-27 As shown, the cable reel 33 is provided with multiple third locking structures 3330. By providing these third locking structures 3330 to the cable reel 33, the diameter of the circle enclosed by the multiple third locking structures 3330 is smaller (compared to providing third locking structures 3330 on the first reel 31), thus requiring fewer third locking structures 3330, which is beneficial for the manufacturing design of the cable reel 3. The circle enclosed by the multiple third locking structures 3330 intersects with each of the multiple third locking structures 3330. For example, Figure 26 The circle surrounded by multiple third locking structures 3330 is either the inner circle or the outer circle of the inner cylinder 333.

[0203] In some examples, such as Figure 25 As shown, the upper cover 2 includes a top plate 21 and a surrounding plate 22. The top plate 21 is disposed opposite to the bottom plate 11, and the bottom plate 11, top plate 21, and surrounding plate 22 form a receiving cavity for accommodating the cable reel 3. A fourth locking structure 211 is disposed on the inner wall of the top plate 21. This facilitates the placement of the third locking structure 3330 on the cable reel 33.

[0204] In some examples, such as Figures 25-27 As shown, the third locking structure 3330 is a groove structure, and the fourth locking structure 211 is a protrusion structure (or tooth). The groove structure can be a circumferentially closed groove, or it can be a groove defined by two protrusion structures (or teeth).

[0205] For example, such as Figure 26 As shown, the cable reel 33 has multiple first teeth 3331, which are arranged at intervals along the circumference of the cable reel 33. A groove structure (i.e., the third locking structure 3330) is formed between two adjacent first teeth 3331. The protruding structure on the upper cover 2 is used to extend into the space between two adjacent first teeth 3331. This type of groove structure is easier to process.

[0206] In some examples, such as Figure 28As shown, the cable reel 33 includes an inner cylinder 333, a connecting structure 334, and an outer cylinder 335. The outer cylinder 335 is fitted onto the inner cylinder 333, and the inner cylinder 333 and the outer cylinder 335 are connected by the connecting structure 334. The inner cylinder 333 is fitted onto the fixed shaft 12 and is provided with multiple third locking structures 3330. The outer cylinder 335 is used to wind the optical cable 6. In this way, on the one hand, the third locking structures 3330 do not affect the winding of the optical cable 6 by the outer cylinder 335. On the other hand, the circumference of the cylinder where the third locking structures 3330 are located is small, so the number of third locking structures 3330 required is small, which is beneficial to the processing design of the cable reel 3. Furthermore, the outer diameter of the outer cylinder 335 is large, which is beneficial for the outer cylinder 335 to wind the optical cable 6.

[0207] In some examples, such as Figure 26 and Figure 27 As shown, the cable reel 33 includes a plurality of first teeth 3331, which are arranged around the inner cylinder 333. One end of each first tooth 3331 is connected to the outer wall of the inner cylinder 333, and the other end extends toward the outer cylinder 335. A groove structure (i.e., a third locking structure 3330) is formed between two adjacent first teeth 3331. In some other examples, the plurality of first teeth 3331 may also extend axially along the inner cylinder 333, for example... Figure 29 The shape shown.

[0208] In some examples, such as Figure 26 and Figure 29 As shown, the cable reel 33 protrudes relative to the first reel 31, and the third locking structure 3330 or the first tooth 3331 is located on the protruding part of the cable reel 33 relative to the first reel 31. In this way, the first tooth 3331 is relatively close to the top plate 21, so that the fourth locking structure 211 (protruding structure) does not need to have a large length to engage the third locking structure 3330. Furthermore, the shorter the length of the fourth locking structure 211, the higher the structural strength.

[0209] In some examples, such as Figure 26 and Figure 29 As shown, the inner cylinder 333 and the outer cylinder 335 protrude relative to the first disc 31, and the first tooth 3331 is provided on the part of the inner cylinder 333 that protrudes relative to the second disc 32.

[0210] In some examples, such as Figure 26 and Figure 29As shown, the protruding portion of the outer cylinder 335 relative to the first reel 31 forms a circumferentially open annulus. The connector limiting structure 37 (or adapter limiting structure 36) provided on the first reel 31 is positioned opposite to the opening of the annulus. This reduces the space occupied by the second reel cable portion 332 on the reel surface of the second reel 32, which is beneficial for setting the connector limiting structure 37, or adapter limiting structure 36, and prevents the distance between the connector limiting structure 37 (or adapter limiting structure 36) and the second reel cable portion 332 from being too close, which would prevent the portion of the second reel cable portion 332 opposite to the connector limiting structure 37 (or adapter limiting structure 36) from being able to wind the optical cable 6.

[0211] In some examples, such as Figure 26 As shown, the reference line X extends radially along the cable reel 3 and is perpendicular to the length direction of the adapter 4 fixed by the adapter limiting structure 36, or perpendicular to the length direction of the first connector 61 fixed by the connector limiting structure 37. Among the plurality of first teeth 3331, the distance L1 between two first teeth 3331 adjacent to the reference line X and arranged on both sides of the reference line X is greater than the distance L2 between other adjacent first teeth 3331. This ensures that the first teeth 3331 do not interfere with the adapter 4 or the first connector 61.

[0212] To prevent the protruding structure on the upper cover 2 from contacting the first tooth 3331 during the process of the upper cover 2 closing onto the bottom shell 1, thus preventing the upper cover 2 from failing to connect with the bottom shell 1, in some examples, such as... Figure 26 and Figure 27 As shown, the end of the fixed shaft 12 is provided with an indicator mark 128. When the indicator mark 128 is aligned with a third locking structure 3330 (for example, aligned with a first tooth 3331 or a groove between two adjacent first teeth 3331), the protruding structure can smoothly extend into the space between two adjacent first teeth 3331 during the process of the upper cover 2 closing onto the bottom shell 1. This improves the smoothness of the upper cover 2 closing onto the bottom shell 1. The indicator mark 128 can be a protrusion or groove at the end of the fixed shaft 12 or other graphic markings, including but not limited to screen printing, laser engraving, etc.

[0213] Besides the technical solution of setting the third locking structure 3330 as a groove structure and the fourth locking structure 211 as a protrusion structure, in other examples, such as Figure 29 and Figure 30 As shown, the third locking structure 3330 is a protruding structure (or tooth), and the fourth locking structure 211 is a groove structure. The groove structure can be a groove defined by two protruding structures (or teeth), or it can be a circumferentially closed groove, such as... Figure 29 The fourth locking structure 211 in the middle.

[0214] In some examples, such as Figure 29As shown, the cable reel 33 includes a plurality of first teeth 3331, each first tooth 3331 forming a third locking structure 3330. The first teeth 3331 are used to extend into... Figure 29 The upper cover 2 is shown in the groove structure (fourth locking structure 211). The first tooth 3331 can extend axially.

[0215] In other examples, such as Figure 31 As shown, the cable reel 33 is equipped with a fourth locking structure 211. (As indicated...) Figure 32 As shown, the top plate 21 of the upper cover 2 is provided with a plurality of third locking structures 3330. For example, as... Figure 32 As shown, the top plate 21 is provided with a plurality of teeth arranged circumferentially, and a groove structure is formed between two adjacent teeth. This groove structure forms a third locking structure 3330. The fourth locking structure 211 provided on the cable reel 33 is used to extend into the space between two adjacent teeth.

[0216] Besides the technical solution of using the top cover 2 to lock the cable reel 3, in other examples, a special locking element 5 can also be used to restrict the rotation of the cable reel 3. For example, in some examples... Figure 33 , Figure 38 and Figure 44 As shown, one of the bottom shell 1 and the cable reel 3 is provided with a first locking structure 400, and the other is provided with a locking member 5. The locking member 5 is provided with a second locking structure 53. The locking member 5 is used to engage the first locking structure 400 and the second locking structure 53 in a circumferential direction to restrict the rotation of the cable reel 3 (which can be simply referred to as the cable reel 3 being in a locked state). Alternatively, it can disengage the first locking structure 400 and the second locking structure 53 to release the restriction on the rotation of the cable reel 3.

[0217] The technical solution provided in this application embodiment allows the user to operate the locking member 5 when the cable reel 3 is not needed to release the optical cable 6. This allows the second locking structure 53 to engage circumferentially with the first locking structure 400, thus restricting the rotation of the cable reel 3. In this case, even if the user accidentally pulls the optical cable 6, the cable reel 3 will not rotate. When the cable reel 3 needs to release the optical cable 6, the user can operate the locking member 5 to release the locking of the cable reel 3. Then, when the user pulls the optical cable 6, the cable reel 3 can rotate normally and release the optical cable 6.

[0218] It should be noted that the locking element 5 can lock the cable reel 3 without closing the top cover 2. This allows the cable reel 3 to be locked during wall mounting of the fiber optic terminal box 200. For example, if the user pulls out the appropriate length of optical cable 6 but cannot close the top cover 2, the locking element 5 can be used to lock the cable reel 3. In this case, even if the user accidentally pulls the optical cable 6, the cable reel 3 will not rotate.

[0219] In some examples, such as Figure 33 , Figure 38 and Figure 44 As shown, there are multiple first locking structures 400, which are arranged circumferentially along the cable reel 3. In this way, the cable reel 3 can be locked in more positions.

[0220] In some examples, such as Figure 33 , Figure 38 and Figure 44 As shown, one of the fixed shaft 12 and the cable drum 33 is provided with a plurality of first locking structures 400, and the other is provided with a locking element 5.

[0221] This application provides three implementation methods for the locking element 5. Among them, Figures 33-36 The accompanying drawings are for the first type of locking member 5, and also for the second type of fiber optic terminal box 200 provided in the embodiments of this application. Figures 37-42 The accompanying drawings are for the second type of locking element 5, and also for the third type of fiber optic terminal box 200 provided in the embodiments of this application. Figures 43-49 The attached drawings are for the third type of locking element 5, and also for the fourth type of fiber optic terminal box 200 provided in the embodiments of this application.

[0222] The following description, in conjunction with the accompanying drawings, provides an exemplary illustration of three types of locking elements 5.

[0223] (1) In some examples, such as Figure 33 and Figure 34 As shown, the end of the fixed shaft 12 away from the base plate 11 is provided with multiple first locking structures 400. The locking member 5 is rotatably connected to the cable reel 33. Along the axial direction of the fixed shaft 12, the fixed shaft 12 is arranged between the base plate 11 and the locking member 5. The side of the locking member 5 facing the fixed shaft 12 is provided with a second locking structure 53. Wherein, as... Figure 33 and Figure 34 As shown, the user can switch the cable reel 3 between locked and unlocked states by pressing the locking element 5. The rotation axis of the locking element 5 can be parallel to the first reel 31.

[0224] In some examples, such as Figure 33 and Figure 35 As shown, the locking member 5 includes a first part 511 and a second part 512, which are arranged on both sides of the rotation axis of the locking member 5. A second locking structure 53 is provided on the side of the first part 511 facing the fixed shaft 12. When the first part 511 is pressed, the second locking structure 53 engages circumferentially with the first locking structure 400; when the second part 512 is pressed, the second locking structure 53 disengages from the first locking structure 400.

[0225] In some examples, such as Figure 33As shown, the first part 511 of the locking member 5 is provided with a locking indicator 5110 (or a locking indicator), and the second part 512 of the locking member 5 is provided with an unlocking indicator 5120. This facilitates prompting the user on how to operate the locking member 5.

[0226] In some examples, such as Figure 34 and Figure 35 As shown, the locking member 5 includes a hook 54, which connects to one end of the first part 511 away from the rotation axis of the locking member 5. The cable reel 33 is provided with a snap-fit ​​hole 3321. When the second locking structure 53 and the first locking structure 400 are snapped together circumferentially, the hook 54 and the snap-fit ​​hole 3321 are snapped together axially in the cable reel 33. After the hook 54 snaps together with the snap-fit ​​hole 3321, the locking member 5 is limited, preventing it from rotating due to gravity, vibration, or other reasons, thus improving the reliability of the locking member 5 in locking the cable reel 3.

[0227] In some examples, such as Figure 34 As shown, when the second locking structure 53 is disengaged from the first locking structure 400, the first part 511 protrudes from the cable reel 33 in the direction toward the upper cover 2. During the process of the upper cover 2 closing onto the bottom shell 1, the upper cover 2 can press down on the first part 511, causing the second locking structure 53 to engage circumferentially with the first locking structure 400. Thus, after the fiber optic terminal box 200 is installed, even if the user forgets to operate the locking member 5 to lock the cable reel 3, the upper cover 2 can automatically push the locking member 5 to lock the cable reel 3 during the closing process.

[0228] In some examples, such as Figure 36 and Figure 33 As shown, the cable reel 33 is provided with two first rotating shaft grooves 3322. (As indicated...) Figure 35 As shown, the locking member 5 has two rotating shafts 52 or the two ends of one rotating shaft, with the two rotating shafts 52 or the two ends of one rotating shaft respectively located in two first rotating shaft grooves 3322. This achieves a rotatable connection between the locking member 5 and the cable reel 33. Furthermore, the positions of the rotating shafts and rotating shaft grooves are interchangeable.

[0229] In some examples, such as Figure 36 As shown, at least one first rotating shaft groove 3322 has a first limiting groove 3323 on its groove wall, and at least one rotating shaft 52 has a first limiting protrusion 5211 (e.g., Figure 35 (As shown). When the locking member 5 rotates until the first limiting protrusion 5211 leaves the first limiting groove 3323, the second locking structure 53 disengages from the first locking structure 400. When the locking member 5 rotates until the first limiting protrusion 5211 extends into the first limiting groove 3323, the second locking structure 53 engages circumferentially with the first locking structure 400. In this way, the locking member 5 can be kept in the locked state.

[0230] In some examples, such as Figure 36 As shown, at least one first rotating shaft groove 3322 has a second limiting groove 3324 on its groove wall, and the first limiting groove 3323 and the second limiting groove 3324 are arranged circumferentially along the first rotating shaft groove 3322. When the locking member 5 rotates until the first limiting protrusion 5211 extends into the second limiting groove 3324, the second locking structure 53 is disengaged from the first locking structure 400. In this way, the locking member 5 can remain in the unlocked state.

[0231] In some examples, such as Figure 35 As shown, the rotating shaft 52 includes a first shaft segment 521 and a second shaft segment 522, and the outer diameter of the first shaft segment 521 is larger than the outer diameter of the second shaft segment 522. A first limiting protrusion 5211 is provided on the first shaft segment 521.

[0232] In some examples, such as Figure 35 As shown, the locking member 5 includes a main body 51, which is circular or nearly circular. The main body 51 includes the aforementioned first part 511 and second part 512. Two pivots 52 or both ends of a single pivot are located on both sides of the main body 51. A second locking structure 53 and a latch 54 are provided on the main body 51. Wherein, as... Figure 33 and Figure 34 As shown, the main body 51 can cover the first locking structure 400 at the end of the fixed shaft 12.

[0233] In some examples, such as Figure 34 As shown, the end of the fixed shaft 12 is provided with a plurality of second teeth 122 along the circumferential direction, and a first locking structure 400 is formed between two adjacent second teeth 122.

[0234] (2) In some examples, such as Figure 37 and Figure 38 As shown, the locking member 5 is rotatably connected to the end of the fixed shaft 12. The locking member 5 is provided with a second locking structure 53. The cable reel 33 is provided with multiple first locking structures 400, and the locking member 5 can be rotated to allow the second locking structure 53 to engage or disengage with the first locking structure 400 in the circumferential direction. Figure 38 As shown, the user can operate the locking element 5 by pressing it. The rotation axis of the locking element 5 can be parallel to the first disc 31.

[0235] In some examples, such as Figure 39 and Figure 40 As shown, one end of the locking member 5 is provided with a second locking structure 53, and the part of the fixed shaft 12 corresponding to the other end of the locking member 5 is provided with a clearance hole 125. The clearance hole 125 is used to accommodate the other end of the locking member 5 when the second locking structure 53 is released from the first locking structure 400.

[0236] In some examples, such as Figure 39 As shown, the end of the fixed shaft 12 is open. The fixed shaft 12 is provided with two second rotating shaft grooves 123. Figure 40 As shown, the locking component 5 has two pivots 52. Figure 41 As shown, the two rotating shafts 52 are respectively located in the two second rotating shaft grooves 123, thereby realizing the rotational connection between the locking member 5 and the fixed shaft 12.

[0237] In some examples, such as Figure 39 As shown, the fixed shaft 12 has a second limiting protrusion 124 inside. Figure 40 As shown, the locking member 5 is provided with a limiting plate 55 extending into the interior of the fixed shaft 12, and the limiting plate 55 is provided with a third limiting groove 551 and a fourth limiting groove 552. Figure 42 As shown, when the second locking structure 53 and the first locking structure 400 are engaged circumferentially, the second limiting protrusion 124 is located in the third limiting groove 551, so that the locking member 5 can be stably locked. When the second locking structure 53 and the first locking structure 400 are not engaged, the second limiting protrusion 124 is located in the fourth limiting groove 552, so that the locking member 5 can be stably unlocked.

[0238] In some examples, such as Figure 42 As shown, the inside of the cable reel 33 is provided with multiple third teeth 330, and a first locking structure 400 is formed between two adjacent third teeth 330.

[0239] (3) In some examples, such as Figure 43 and Figure 44 As shown, the locking member 5 is slidably connected to the fixed shaft 12. The locking member 5 can slide to engage or disengage the first locking structure 400 and the second locking structure 53 in the circumferential direction. Wherein, as... Figure 44 As shown, the user can operate the locking element 5 by toggling it. The sliding direction of the locking element 5 can be parallel to the first disc 31.

[0240] In some examples, such as Figure 45 As shown, the fixed shaft 12 is a hollow structure. The fixed shaft 12 includes a side wall 126 and an end wall 127. The locking member 5 is slidably connected to the end wall 127. The end wall 127 is provided with an end wall hole 1271 for the locking member 5 to pass through.

[0241] In some examples, such as Figure 46 As shown, the locking member 5 includes a first limiting part 56, a second limiting part 57, and a middle part 58, with the middle part 58 arranged between the first limiting part 56 and the second limiting part 57. Figure 46 and Figure 47As shown, the middle part 58 passes through the end wall hole 1271, the first limiting part 56 is provided on the inner side of the end wall 127, and the second limiting part 57 is provided on the outer side of the end wall 127. The width of the first limiting part 56 and the second limiting part 57 is greater than the width of the end wall hole 1271, thereby limiting the locking member 5 axially on the fixed shaft 12.

[0242] In some examples, such as Figure 47 and Figure 48 As shown, the inner surface of the end wall 127 is provided with a fifth limiting groove 1272 and a sixth limiting groove 1273, which are arranged along the sliding direction. The locking member 5 also includes a third limiting protrusion 59. When the first locking structure 400 and the second locking structure 53 are not engaged, the third limiting protrusion 59 is located in the fifth limiting groove 1272, so that the locking member 5 is stably held in the unlocked state. When the first locking structure 400 and the second locking structure 53 are engaged, the third limiting protrusion 59 is located in the sixth limiting groove 1273, so that the locking member 5 is stably held in the locked state.

[0243] In some examples, such as Figure 49 As shown, the cable reel 33 includes an inner cylinder 333, a connecting structure 334, and an outer cylinder 335. The outer cylinder 335 is fitted onto the inner cylinder 333 and is connected to the inner cylinder 333 through the connecting structure 334. The inner cylinder 333 is fitted onto the fixed shaft 12 and is provided with multiple first locking structures 400. The outer cylinder 335 is used to wind the optical cable 6.

[0244] In some examples, such as Figure 49 As shown, the end of the inner cylinder 333 is provided with a plurality of first teeth 3331, and a first locking structure 400 is formed between two adjacent first teeth 3331.

[0245] In practical applications, the distance between the fiber optic terminal box 200 and the fiber distribution box 100 (or other optical access devices) may exceed the maximum length of the optical cable 6 that the fiber optic terminal box 200 can accommodate. In some examples, this can be addressed by increasing the volume of the fiber optic terminal box 200's housing to extend the length of the optical cable 6 that can be accommodated inside, thereby expanding the application scenarios of the fiber optic terminal box 200. However, this would result in a larger fiber optic terminal box 200, making it inconvenient for use in home environments.

[0246] In other examples, such as Figure 50 and Figure 52As shown, this application embodiment provides a fiber optic terminal box assembly, which includes an external cable reel 300 and the aforementioned fiber optic terminal box 200. The fiber optic terminal box 200 is fixed to the external cable reel 300. A portion of the optical cable 6 is housed inside the fiber optic terminal box 200, while another portion of the optical cable 6 is located outside the housing of the fiber optic terminal box 200 and wound around the external cable reel 300. This not only extends the length of the optical cable 6 that the fiber optic terminal box 200 can carry but also eliminates the need to increase the volume of the fiber optic terminal box 200. Furthermore, after the fiber optic terminal box 200 is wall-mounted, the external cable reel 300 can be discarded.

[0247] In some examples, such as Figures 50-52 As shown, the outer cable reel 300 includes a third reel 301, a fourth reel 302, and an outer cable tube 303. The third reel 301 and the fourth reel 302 are located at both ends of the outer cable tube 303. The fiber optic terminal box 200 is located inside the outer cable tube 303. This reduces the space occupied by the fiber optic terminal box assembly, which is beneficial for the packaging and transportation of the fiber optic terminal box 200. The space occupied by the fiber optic terminal box assembly is essentially equal to the space occupied by the outer cable reel 300.

[0248] In some examples, such as Figures 50-52 As shown, the outer cable reel 303 has a second fiber channel 304 on its wall. A portion of the optical cable 6 of the fiber optic terminal box 200 passes through the second fiber channel 304 and is wrapped around the outer wall of the outer cable reel 303. The second fiber channel 304 facilitates the exit of a portion of the optical cable 6 from the interior of the outer cable reel 303 and its wrapping around its outer wall. Figure 50 and Figure 52 Two configurations of the second fiber channel 304 are shown.

[0249] In some examples, such as Figures 50-52 As shown, the fiber optic terminal box 200 is fixed to the third tray 301. The fourth tray 302 has an opening that connects to the interior of the outer tray cable tube 303, allowing the fiber optic terminal box 200 to be inserted into or removed from the outer tray cable tube 303.

[0250] In some examples, such as Figure 50 and Figure 52 As shown, the fiber optic terminal box 200 is secured to the third tray 301 by cable ties 306. For example, as... Figure 46 As shown, the third disc 301 is provided with a mounting hole 305, which is used for the cable tie 306 to pass through.

[0251] It should be noted that the technical solution provided in this application is not limited to the fiber optic terminal box 200, but can also be applied to other fiber optic access boxes, such as fiber distribution boxes. The fiber optic access box includes a bottom shell 1, a top cover 2, a cable reel 3, an adapter 4, and an optical cable 6, and may also include a locking element 5. The specific structure of these components can be found in the foregoing description.

[0252] In addition, for the fiber optic access box being the aforementioned fiber optic distribution box, one end of the optical cable 6 included in the distribution box is provided with a second connector 62, and the other end is provided with multiple first connectors 61. The distribution box includes multiple adapters 4. When the cable reel 3 of the distribution box rotates, the multiple first connectors 61 are fixed to the cable reel 3 (which can be fixed in one of the two ways described above) and rotate synchronously with the cable reel 3. After the distribution box is installed, the multiple first connectors 61 are respectively plugged into the multiple adapters 4 fixed to the bottom shell 1. In addition, the optical cable 6 includes a beam splitter, which is used to split the light input from one second connector 62 into multiple beams, and output them respectively through multiple first connectors 61. Alternatively, it is used to combine the light input from multiple first connectors 61 and output them through one second connector 62.

[0253] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A fiber optic access box, characterized in that, The fiber optic access box includes a bottom shell (1), a top cover (2), a cable reel (3), a locking element (5), and an optical cable (6). The cable reel (3) is rotatably disposed on the bottom shell (1), the top cover (2) covers the bottom shell (1) and forms a receiving cavity with the bottom shell (1) to accommodate the cable reel (3), and the cable reel (3) is used to wind the optical cable (6). The locking member (5) is rotatably or slidably connected to one of the bottom shell (1) and the cable reel (3), and the other of the bottom shell (1) and the cable reel (3) is provided with a first locking structure (400). The locking member (5) is provided with a second locking structure (53). The locking member (5) can be rotated or slid so that the second locking structure (53) and the first locking structure (400) are engaged or disengaged in the circumferential direction of the cable reel (3).

2. The fiber optic access box according to claim 1, characterized in that, The number of the first locking structure (400) is multiple, and the multiple first locking structures (400) are arranged circumferentially along the cable reel (3).

3. The fiber optic access box according to claim 2, characterized in that, The plurality of first locking structures (400) include a plurality of teeth arranged at circumferential intervals; The second locking structure (53) includes at least one tooth, which is used to extend between a plurality of teeth included in the first locking structure (400) to achieve circumferential engagement between the second locking structure (53) and the first locking structure (400).

4. The fiber optic access box according to any one of claims 1-3, characterized in that, The bottom shell (1) includes a bottom plate (11) and a fixed shaft (12), one end of which is connected to the bottom plate (11). The cable reel (3) includes a first reel (31) and a cable cylinder (33). The cable cylinder (33) is sleeved on the fixed shaft (12). The locking member (5) is rotatably or slidably connected to one of the fixed shaft (12) and the cable cylinder (33). The other of the fixed shaft (12) and the cable cylinder (33) is provided with the first locking structure (400).

5. The fiber optic access box according to claim 4, characterized in that, The cable reel (3) also includes a second reel (32), the first reel (31) and the second reel (32) are axially spaced apart in the cable drum (33), and the second reel (32) is close to or abuts against the bottom plate (11).

6. The fiber optic access box according to claim 5, characterized in that, The base plate (11) is provided with a sinkhole, and part of the structure of the second plate (32) is located in the sinkhole.

7. The fiber optic access box according to claim 4, characterized in that, The fixed shaft (12) is provided with a plurality of the first locking structures (400) at one end away from the base plate (11). The locking member (5) is rotatably connected to the cable drum (33). Along the axial direction of the fixed shaft (12), the fixed shaft (12) is arranged between the base plate (11) and the locking member (5). The locking member (5) has a second locking structure (53) on the side facing the fixed shaft (12).

8. The fiber optic access box according to claim 7, characterized in that, The locking member (5) includes a first part (511) and a second part (512). The first part (511) and the second part (512) are arranged on both sides of the rotation axis of the locking member (5). The first part (511) is provided with a second locking structure (53) on the side facing the fixed shaft (12). When the first part (511) is pressed, the second locking structure (53) engages circumferentially with the first locking structure (400), and when the second part (512) is pressed, the second locking structure (53) disengages from the first locking structure (400).

9. The fiber optic access box according to claim 8, characterized in that, The first part (511) of the locking member (5) is provided with a locking indicator (5110), and the second part (512) of the locking member (5) is provided with an unlocking indicator (5120).

10. The fiber optic access box according to claim 8, characterized in that, The locking member (5) includes a hook (54) that connects to one end of the first part (511) away from the axis of rotation. The cable reel (33) has a snap-fit ​​hole (3321) on its wall. When the second locking structure (53) and the first locking structure (400) are snapped together in the circumferential direction, the hook (54) and the snap-fit ​​hole (3321) are snapped together in the axial direction of the cable reel (33).

11. The fiber optic access box according to claim 8, characterized in that, When the second locking structure (53) is released from the first locking structure (400), the first part (511) protrudes from the cable reel (33) in the direction toward the upper cover (2). During the process of the upper cover (2) closing onto the bottom shell (1), the upper cover (2) can press the first part (511) and cause the second locking structure (53) to engage with the first locking structure (400) in the circumferential direction.

12. The fiber optic access box according to any one of claims 7-11, characterized in that, The cable drum (33) is provided with two first rotating shaft grooves (3322) arranged opposite to each other, and the locking member (5) is provided with two rotating shafts (52), the two rotating shafts (52) being located in the two first rotating shaft grooves (3322) respectively.

13. The fiber optic access box according to claim 12, characterized in that, At least one of the first rotating shaft grooves (3322) has a first limiting groove (3323) on its groove wall, and at least one of the rotating shafts (52) has a first limiting protrusion (5211). When the locking member (5) rotates until the first limiting protrusion (5211) leaves the first limiting groove (3323), the second locking structure (53) is released from the first locking structure (400). When the locking member (5) rotates until the first limiting protrusion (5211) extends into the first limiting groove (3323), the second locking structure (53) is engaged with the first locking structure (400) in the circumferential direction.

14. The fiber optic access box according to claim 13, characterized in that, At least one of the first rotating shaft grooves (3322) is further provided with a second limiting groove (3324) on its groove wall, and the first limiting groove (3323) and the second limiting groove (3324) are arranged along the circumference of the first rotating shaft groove (3322); When the locking member (5) rotates to the point where the first limiting protrusion (5211) extends into the second limiting groove (3324), the second locking structure (53) is released from engagement with the first locking structure (400).

15. The fiber optic access box according to claim 4, characterized in that, The locking member (5) is rotatably connected to the end of the fixed shaft (12) away from the base plate (11), and the cable drum (33) is provided with a plurality of the first locking structures (400).

16. The fiber optic access box according to claim 7 or 15, characterized in that, The rotation axis of the locking member (5) is parallel to the first disc (31).

17. The fiber optic access box according to claim 4, characterized in that, The locking member (5) is slidably connected to one end of the fixed shaft (12) away from the base plate (11), and the cable drum (33) is provided with a plurality of the first locking structures (400).

18. The fiber optic access box according to claim 4, characterized in that, The cable reel (33) includes a first cable reel (331) and a second cable reel (332) arranged along the axial direction, with the first cable reel (331) and the second cable reel (332) arranged on both sides of the first reel (31); The locking member (5) is rotatably or slidably connected to one of the fixed shaft (12) and the second cable coil (332), and the other of the fixed shaft (12) and the second cable coil (332) is provided with the plurality of first locking structures (400).

19. The fiber optic access box according to claim 18, characterized in that, The fiber optic access box also includes an adapter (4), the first disk (31) is provided with an adapter limiting structure (36), and the bottom shell (1) is provided with an adapter card holder (112). The adapter limiting structure (36) and the adapter card holder (112) are both used to fix the adapter (4). One end of the optical cable (6) wound around the first cable coil (331) is provided with a second connector (62), and one end of the optical cable (6) wound around the second cable coil (332) is provided with a first connector (61). The second connector (62) is used to extend to the outside of the bottom shell (1) and the top cover (2), and the first connector (61) is used to be inserted into one end of the adapter (4) fixed to the adapter limiting structure (36), or to be inserted into one end of the adapter (4) fixed to the adapter card holder (112).

20. The fiber optic access box according to claim 18, characterized in that, The fiber optic access box also includes an adapter (4), which is fixed to the bottom shell (1), and the first disk (31) is provided with a connector limiting structure (37). One end of the optical cable (6) wound around the first cable coil (331) is provided with a second connector (62), and one end of the optical cable (6) wound around the second cable coil (332) is provided with a first connector (61). The second connector (62) is used to extend to the outside of the bottom shell (1) and the top cover (2), and the first connector (61) is used to be fixed to the connector limiting structure (37) or plugged into one end of the adapter (4).

21. The fiber optic access box according to claim 4, characterized in that, The bottom shell (1) is provided with a surrounding wall (13), which is arc-shaped and surrounds the cable reel (3); The height of the wall (13) is lower than that of the first plate (31), and the outer diameter of the first plate (31) is greater than that of the inner diameter of the wall (13).

22. The fiber optic access box according to any one of claims 1-3, characterized in that, The top cover (2) includes a top plate (21), which is disposed opposite to the bottom shell (1), and the top plate (21) is provided with a QR code.

23. A fiber optic access box, characterized in that, The fiber optic access box includes a bottom shell (1), a top cover (2), a cable reel (3), and an optical cable (6). The bottom shell (1) includes a bottom plate (11) and a fixed shaft (12). One end of the fixed shaft (12) is connected to the bottom plate (11). The cable reel (3) is sleeved on the fixed shaft (12) and is used to wind the optical cable (6). One of the cable reel (3) and the upper cover (2) is provided with a third locking structure (3330), and the other is provided with a fourth locking structure (211). When the upper cover (2) is closed on the bottom shell (1), the fourth locking structure (211) and the third locking structure (3330) are engaged in the circumferential direction of the cable reel (3).

24. The fiber optic access box according to claim 23, characterized in that, The number of the third locking structures (3330) is multiple, and the multiple third locking structures (3330) are arranged circumferentially along the cable reel (3).

25. The fiber optic access box according to claim 23 or 24, characterized in that, The cable reel (3) includes a first reel (31) and a cable cylinder (33), the cable cylinder (33) being sleeved on the fixed shaft (12). The upper cover (2) includes a top plate (21), which is disposed opposite to the bottom plate (11); One of the top plate (21) and the cable drum (33) is provided with the third locking structure (3330), and the other is provided with the fourth locking structure (211).

26. The fiber optic access box according to claim 25, characterized in that, The cable drum (33) is provided with a plurality of third locking structures (3330) along the circumference, and the top plate (21) is provided with the fourth locking structure (211).

27. The fiber optic access box according to claim 25, characterized in that, The third locking structure (3330) is a groove structure, and the fourth locking structure (211) is a protrusion structure. The protrusion structure is used to extend into the groove structure to achieve circumferential engagement between the fourth locking structure (211) and the third locking structure (3330).

28. The fiber optic access box according to claim 27, characterized in that, The cable reel (33) is provided with a plurality of first teeth (3331), which are arranged at intervals along the circumference of the cable reel (33). A groove structure is formed between two adjacent first teeth (3331), and the protrusion structure provided on the top plate (21) is used to extend into the space between two adjacent first teeth (3331).

29. The fiber optic access box according to claim 25, characterized in that, The cable reel (33) includes an inner cylinder (333), a connecting structure (334), and an outer cylinder (335). The outer cylinder (335) is sleeved on the inner cylinder (333), and the inner cylinder (333) and the outer cylinder (335) are connected by the connecting structure (334). The inner cylinder (333) is sleeved on the fixed shaft (12), and the outer cylinder (335) is used to wind the optical cable (6). One of the top plate (21) and the inner cylinder (333) is provided with the third locking structure (3330), and the other is provided with the fourth locking structure (211).

30. The fiber optic access box according to claim 29, characterized in that, The inner cylinder (333) is provided with a plurality of first teeth (3331), which are arranged around the inner cylinder (333). One end of each first tooth (3331) is connected to the cylinder wall of the inner cylinder (333), and the other end extends toward the outer cylinder (335). A groove structure is formed between two adjacent first teeth (3331), and the groove structure forms the third locking structure (3330). The fourth locking structure (211) is a protruding structure, which is used to extend into the groove structure to achieve circumferential engagement between the fourth locking structure (211) and the third locking structure (3330).

31. The fiber optic access box according to claim 30, characterized in that, The inner cylinder (333) and the outer cylinder (335) protrude relative to the first disk (31), and the plurality of first teeth (3331) are provided on the portion of the inner cylinder (333) that protrudes relative to the first disk (31).

32. The fiber optic access box according to claim 31, characterized in that, The outer cylinder (335) is in a circumferentially open ring relative to the protruding portion of the first disc (31). The first disc (31) is provided with an adapter limiting structure (36) or a connector limiting structure (37). The adapter limiting structure (36) or the connector limiting structure (37) is arranged opposite to the opening of the ring.

33. The fiber optic access box according to claim 32, characterized in that, Among the plurality of first teeth (3331), the spacing between two first teeth (3331) adjacent to the reference line (X) and arranged on both sides of the reference line (X) is greater than the spacing between other adjacent first teeth (3331). The reference line (X) extends radially along the cable reel (3) and is perpendicular to the length direction of the adapter (4) fixed by the adapter limiting structure (36), or perpendicular to the length direction of the connector fixed by the connector limiting structure (37).

34. The fiber optic access box according to claim 25, characterized in that, The cable drum (33) includes a first cable section (331) and a second cable section (332) arranged along the axial direction. The first cable section (331) and the second cable section (332) are arranged on both sides of the first cable (31), and the second cable section (332) is close to the top plate (21). One of the top plate (21) and the second cable section (332) is provided with the third locking structure (3330), and the other is provided with the fourth locking structure (211).

35. The fiber optic access box according to claim 26, characterized in that, The fixed shaft (12) has an indicator mark (128) at its end. When the indicator mark (128) is aligned with one of the third locking structures (3330), the upper cover (2) engages with the cable reel (3).

36. A fiber optic access box assembly, characterized in that, The fiber optic access box assembly includes an external cable tray (300) and a fiber optic access box as described in any one of claims 1-35; The outer cable reel (300) includes a third reel (301), a fourth reel (302), and an outer cable tube (303). The third reel (301) and the fourth reel (302) are located at both ends of the outer cable tube (303). The fiber optic access box (200) is fixed inside the outer cable tube (303). A portion of the optical cable (6) of the optical fiber access box is wound around the outer wall of the outer cable tube (303).

37. The fiber optic access box assembly according to claim 36, characterized in that, The outer cable drum (303) has a second fiber channel (304) on its wall. A portion of the optical cable (6) of the optical fiber access box passes through the second fiber channel (304) and is wrapped around the outer wall of the outer cable drum (303).

Images