Optical cable fiber distribution apparatus

Abstract

Embodiments of this application provide an optical cable fiber distribution apparatus. The optical cable fiber distribution apparatus relates to the field of optical communications device technologies. The optical cable fiber distribution apparatus includes a fiber access terminal (2), a cable take-up and pay-off structure (1), and a connection structure (3). The cable take-up and pay-off structure is configured to take up and pay-off an optical cable connected to the fiber access terminal. The cable take-up and pay-off structure includes a base (101) with a storage cavity (103), where the storage cavity integrates with a surface of the base to form a storage cavity opening, and the base is disposed with a cable port (105) connected to the storage cavity; and a rotary tray (102) configured to coil the optical cable, where the rotary tray is installed in the storage cavity, the fiber access terminal is disposed on a side of the storage cavity opening, the rotary tray is relatively fixed to the fiber access terminal, and the rotary tray and the fiber access terminal can rotate synchronously relative to the base. The connection structure includes: a first connector (302), disposed on the fiber access terminal; and a second connector (301), disposed on the base and detachably connected to the first connector. A main objective of the optical cable fiber distribution apparatus provided in the embodiments of this application is resolving technical problems of low cable take-up and pay-off efficiency, poor cable take-up effect, and low assembly efficiency of an optical cable fiber distribution apparatus in the prior art. Figure 3

Description

A fiber optic cable splitting device

[0001] This application claims priority to Chinese Patent Application No. 202010131112.6, filed on February 28, 2020, entitled "An Optical Cable Splitting Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of optical communication equipment technology, and in particular to an optical cable splitting device. Background Technology

[0003] As an important structure in optical transmission equipment, the fiber distribution box is usually hung on the wall of the stairwell in the community, in the green belt of the community, or other places. It is usually connected to the main optical cable to realize the fiber distribution function. The fiber distribution box is then connected to the indoor optical interface through several split optical cables, and finally the optical signal is connected to each user.

[0004] Fiber optic cable distribution equipment typically includes a distribution box, a cable tray, and optical cables. These three components are independent and require on-site assembly. The assembly process is as follows: lay the optical cables; install the distribution box and cable tray; connect the laid optical cables to the distribution box; and finally, coil any excess optical cables onto the cable tray.

[0005] Since the fiber distribution box, cable tray and optical cable are independent of each other, they need to be assembled on site. The assembly process is complicated, the construction time is long, and the assembly efficiency is low.

[0006] Summary of the Invention

[0007] The embodiments of this application provide an optical cable splitting device, the main purpose of which is to solve the technical problems of low cable take-up and drop-off efficiency, poor take-up effect, and low assembly efficiency of existing optical cable splitting devices.

[0008] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0009] This application provides an optical fiber distribution device, including: a distribution box, a cable winding and unwinding structure, and a connecting structure, wherein the cable winding and unwinding structure is used to wind and unwind optical cables connected to the distribution box.

[0010] The cable deployment and take-up structure includes:

[0011] The base has a storage cavity, which is connected to one surface of the base to form an opening. The base has a cable outlet that is connected to the storage cavity.

[0012] The turntable is configured to store optical cables. The turntable is installed in the storage cavity, and the fiber distribution box is located on one side of the opening of the storage cavity. The turntable and the fiber distribution box are fixed relative to each other, and the turntable and the fiber distribution box can rotate synchronously relative to the base.

[0013] The connection structure includes:

[0014] The first connector is installed on the fiber distribution box;

[0015] The second connector is mounted on the base and is detachably connected to the first connector.

[0016] The fiber optic cable distribution device provided in this application embodiment has a turntable installed in the storage cavity of the base, and the turntable can rotate relative to the base. Since the turntable and the distribution box are relatively fixed, after one end of the optical cable wound on the turntable is inserted into the distribution box, if the optical cable passing through the outlet is pulled out, the distribution box and the turntable rotate synchronously in the first rotation direction, thereby releasing the cable. Only the required amount of optical cable is released. Compared to existing technologies, there is no need to manually wind up excess optical cable. Furthermore, when it is necessary to collect excess pulled-out optical cable, since the distribution box is located on one side of the storage cavity opening, it can be collected by rotating the distribution box in the second rotation direction opposite to the first rotation direction, thus significantly improving cable release and collection efficiency. Moreover, the base is connected to the distribution box, and the optical cable can be wound on the turntable. During actual construction, there is no need for on-site assembly of the three components, improving construction efficiency.

[0017] In addition, since the turntable used for storing optical cables is set inside the storage cavity, the wall of the storage cavity restricts the optical cables during the collection operation, ensuring that the optical cables wound on the turntable are not loose, thus improving the collection effect. At the same time, by hiding the optical cables inside the storage cavity, the optical cables are protected and the appearance is improved.

[0018] In addition, the base and the fiber distribution box are detachably connected by a first connector and a second connector. When the optical cable does not need to be pulled, the fiber distribution box is connected to the base by the first connector and the second connector to ensure the integrity of the whole structure. When the optical cable needs to be pulled, the fiber distribution box is separated from the base by disassembling the first connector and the second connector so that the fiber distribution box and the turntable can rotate synchronously relative to the base.

[0019] In possible implementations, one of the first and second connectors is a snap-fit, and the other is a slot. Using a snap-fit ​​structure to connect the fiber distribution box and the base is convenient to operate, and the snap-fit ​​structure formed by the snap-fit ​​and slot is simple and easy to implement.

[0020] In a possible implementation, the connection structure is a plug-in structure. The first connector includes a connecting pin and a first socket on the fiber distribution box. The second connector includes a second socket on the base. The connecting pin passes through the first socket and the second socket, and the connecting pin and the first socket and the second socket are clearance fit.

[0021] In one possible implementation, the turntable and the fiber distribution box can move synchronously between a first position and a second position relative to the base. The direction of movement of the turntable and the fiber distribution box is consistent with the direction of the turntable's rotation axis. When the turntable and the fiber distribution box move to the first position, the turntable is located in the disk storage cavity; when the turntable and the fiber distribution box move to the second position, the turntable is located outside the disk storage cavity. Since the optical cable wound on the turntable is located inside the disk storage cavity, operation is difficult when installing or maintaining the optical cable. However, by moving the turntable and the fiber distribution box synchronously between the first and second positions relative to the base, when it is necessary to wind or maintain the optical cable on the turntable, the turntable can be moved to the second position, moving it from inside the disk storage cavity to outside. This facilitates operation and improves the overall performance of the optical cable distribution device.

[0022] In one possible implementation, the turntable is connected to the base via a telescopic structure. When the telescopic structure is extended, the turntable and fiber distribution box are in the second position; when the telescopic structure is retracted, the turntable and fiber distribution box are in the first position. For example, a telescopic cylinder or a telescopic hydraulic cylinder can be used to move the turntable and fiber distribution box between the first and second positions.

[0023] In one possible implementation, the turntable is connected to the base via a linear motor. That is, the linear motor drives the turntable and the fiber distribution box to move in a first and a second position.

[0024] In one possible implementation, a fixed shaft is provided inside the storage cavity. The fixed shaft is fixed relative to the base, and the axis of the fixed shaft is collinear with the rotation axis of the turntable. The turntable has a socket, and the turntable is sleeved on the fixed shaft through the socket. The turntable and the fiber distribution box can rotate around the axis of the fixed shaft and slide between a first position and a second position along the axis of the fixed shaft. When the turntable and the fiber distribution box slide to the first position, the turntable abuts against the bottom of the storage cavity. The cable take-up and drop-off structure also includes a limiting member, which is adapted to prevent the turntable from detaching from the fixed shaft and preventing the turntable from moving towards the first position when the turntable and the fiber distribution box slide to the second position. Specifically, the turntable is slidably mounted on the fixed shaft. In practice, a pushing and pulling force drives the turntable and the fiber distribution box to move relative to the fixed shaft, and the limiting member prevents the turntable from sliding off the fixed shaft and from sliding towards the second position. Simultaneously, when the turntable slides to the first position, it abuts against the base to prevent the turntable and the fiber distribution box from continuing to slide away from the second position.

[0025] In a possible implementation, the limiting component includes: a first boss, which is disposed on the outer wall surface of the fixed shaft and near one end of the disk storage cavity opening, and is arranged circumferentially along the fixed shaft; the wall surface of the insertion hole has an extension extending toward the fixed shaft, which is arranged circumferentially along the turntable, and is elastic, located near the bottom of the disk storage cavity, and has a slot for the first boss to engage, with the slot opening facing the fixed shaft; when the first boss engages in the slot, it can prevent the turntable from detaching from the fixed shaft and prevent the turntable from moving toward the first position. By using the first boss and the slot to limit the position of the turntable, the limiting component has a simple structure and is easy to implement.

[0026] In a possible implementation, the cable delivery structure also includes a locking mechanism that can switch between a locked and unlocked state. When locked, the locking mechanism prevents the turntable and fiber distribution box in the first position from moving to the second position; when unlocked, it allows the turntable and fiber distribution box in the first position to move to the second position. When the base and fiber distribution box are detachably connected via a connecting structure, if the fiber distribution box is separated from the base, the locking mechanism ensures that the turntable will not slide from the first position to the second position. This allows the optical cable distribution device to select whether the turntable rotates in the first or second position based on usage.

[0027] In a possible implementation, the locking element includes: a second boss, which is disposed on the outer wall of the fixed shaft and near one end of the disk storage cavity opening. The second bosses are spaced apart circumferentially along the fixed shaft, and a groove is formed between each pair of adjacent second bosses; and a rib, which is disposed on the wall of the insertion hole of the turntable and spaced apart circumferentially along the turntable. When the rib abuts against the second boss, it is in a locked state to prevent the turntable from sliding towards the second position along the axial direction of the fixed shaft. When the rib is opposite to the groove, it is in an unlocked state, and the turntable can slide towards the second position along the axial direction of the fixed shaft. By using the second bosses spaced apart circumferentially along the fixed shaft and the ribs spaced apart circumferentially along the turntable, the turntable is prevented from sliding from the first position to the second position, and the turntable can also be rotated circumferentially along the fixed shaft. Using the matching second bosses and ribs as locking elements, the structure is simple and easy to manufacture.

[0028] In one possible implementation, the rib extends to one end of the turntable near the bottom of the reservoir cavity, and this end has a clearance groove for the second boss to pass through, with the clearance groove extending circumferentially along the turntable. If the turntable in the second position needs to rotate, the rib on the turntable will interfere with the second boss, preventing the turntable from rotating. However, if a clearance groove is provided on the rib, the second boss can pass through the clearance groove when the turntable is rotated, thus allowing the turntable to rotate.

[0029] In one possible implementation, the turntable includes opposing first and second baffles, which are connected by a connecting post. An insertion hole is formed on the connecting post, which is sleeved around a fixed shaft via the insertion hole. The connecting post can rotate around the axis of the fixed shaft and slide along the axial direction of the fixed shaft. In a specific implementation, the optical cable can be wound around the connecting post, and the first and second baffles can limit the movement of the optical cable to prevent it from slipping off the connecting post.

[0030] In one possible implementation, the fiber optic cable distribution device further includes: an optical cable wound around a turntable, one end of which is connected to a connector in the distribution box to transmit the optical signal from the cable to the distribution box, and the other end of which can pass through a cable outlet. Because this fiber optic cable distribution device also includes the optical cable wound around the turntable, the optical cable, distribution box, and cable take-up / deployment structure are integrated into a single structure, which further improves construction efficiency.

[0031] In one possible implementation, the fiber distribution box is equipped with a guide structure to guide the optical cable to connect to the interface on the fiber distribution box. The guide structure facilitates the connection between the optical cable and the interface on the fiber distribution box.

[0032] In possible implementations, the guiding structure includes a guide groove. Using a guide groove as the guiding structure is simple and easy to implement. Attached Figure Description

[0033] Figure 1 is a schematic diagram of the external structure of the optical fiber splitting device provided in an embodiment of this application;

[0034] Figure 2 is a schematic diagram of the fiber distribution box and cable take-up and drop structure after disassembly in Figure 1;

[0035] Figure 3 is a schematic diagram of the disassembled structure of the fiber distribution box, base and turntable in Figure 1;

[0036] Figure 4 is a schematic diagram showing the connection relationship between the fiber distribution box, the turntable, and the base provided in the embodiment of this application;

[0037] Figure 5 is a schematic diagram of the buckle structure provided in the embodiment of this application;

[0038] Figure 6 is a schematic diagram of the connection relationship between the buckle and the base provided in the embodiment of this application;

[0039] Figure 7 is a state diagram of the turntable in the first position relative to the fixed axis according to the embodiment of this application;

[0040] Figure 8 is a top view of the fixed shaft provided in an embodiment of this application;

[0041] Figure 9 is a top view of the turntable provided in an embodiment of this application;

[0042] Figure 10 is a state diagram of the turntable in the first position and after it has rotated relative to the fixed axis according to the embodiment of this application;

[0043] Figure 11 is a state diagram of the turntable provided in the embodiment of this application when it slides from the first position to the second position;

[0044] Figure 12 is a state diagram of the turntable in the second position and after it has rotated relative to the fixed axis according to the embodiment of this application;

[0045] Figure 13 is an enlarged view of point A in Figure 12;

[0046] Figure 14 is a state diagram of the turntable in the first position according to the embodiment of this application;

[0047] Figure 15 is a state diagram of the turntable provided in the embodiment of this application when it slides from the first position to the second position;

[0048] Figure 16 is a top view of the base provided in an embodiment of this application;

[0049] Figure 17 is a schematic diagram of the guide structure on the fiber distribution box provided in an embodiment of this application;

[0050] Figure 18 is a schematic diagram of the connection relationship between the fiber distribution box and the turntable provided in the embodiment of this application.

[0051] Figure label:

[0052] 1-Cable winding and unwinding structure; 101-Base; 102-Turntable; 1021-Rib; 1022-Extension; 1023-Allowing groove; 103-Disc storage cavity; 104-Fixed shaft; 1041-First boss; 1042-Groove; 105-Cable outlet; 106-Mounting hole; 107-Reinforcing rib; 2-Fiber distribution box; 201-Baffle; 202-Plug-in end; 3-Connecting structure; 301-Second connector; 302-First connector; 303-Rotating shaft; 401-Connector; 402-Mounting post; 403-Insert hole; 404-Plug cap; 501-Nut; 502-Bolt; 503-Sleeve; 601-First guide groove; 602-Second guide groove; 7-Connecting pin; 801-First baffle; 802-Second baffle; 803-Connecting post. Detailed Implementation

[0053] This application relates to an optical fiber splitting device, which will be described in detail below with reference to the accompanying drawings.

[0054] Referring to Figures 1, 2, and 3, the optical fiber splitting device includes a splitting box 2, a cable take-up and release structure 1, and a connecting structure 3. The cable take-up and release structure 2 is used to take up and release the optical fiber connected to the splitting box 2. The cable take-up and release structure 1 includes a base 101 and a turntable 102. The base 101 has a storage cavity 103, which is connected to one surface of the base 101 to form a storage cavity opening. The base 101 has a cable outlet 105 that is connected to the storage cavity 103. The turntable 102 is configured to store the optical fiber. The turntable 102 is installed in the storage cavity 103. The splitting box 2 is located on one side of the storage cavity opening. The turntable 102 and the splitting box 2 are fixed relative to each other. The turntable 102 and the splitting box 2 can rotate synchronously relative to the base 101. The connecting structure 3 includes a first connector 302 disposed on the splitting box 2 and a second connector 301 disposed on the base 101 and detachably connected to the first connector 302.

[0055] In practice, the optical cable is wound around the turntable 102, and one end of the optical cable is plugged into the fiber distribution box 2 to transmit the optical signal to the fiber distribution box 2, and then the optical signal is distributed through the fiber distribution box 2.

[0056] Because the optical cable is wound on the turntable, pulling out the end of the optical cable passing through the cable outlet 105 (this end refers to the end of the optical cable that is not connected to the fiber distribution box) will cause the turntable 102 and the fiber distribution box 2 to rotate relative to the base 101 in the first rotation direction, thereby releasing the cable. The amount of optical cable released is the same as the amount to be laid, eliminating the need for manual winding of excess cable compared to existing technologies. Furthermore, even if too much cable is released, rotating the fiber distribution box 2 and the turntable 102 in the opposite rotation direction to the first rotation direction will retract the cable. Therefore, the optical cable distribution device provided in this embodiment can effectively improve the construction efficiency of cable release and take-up.

[0057] Because the fiber distribution box 2 is fixed relative to the turntable 102, the fiber distribution box 2 will rotate synchronously with the rotating turntable 102 relative to the base 101. This will prevent the optical cable plugged into the fiber distribution box and wrapped on the turntable from twisting or interfering with other structures.

[0058] Since the turntable 102 is installed inside the storage cavity 103, the retrieved optical cable is confined by the wall of the storage cavity 103 during retrieval, preventing it from becoming loosely wrapped around the turntable. This improves the retrieval efficiency. Furthermore, since this cable retrieval structure is typically installed in harsh outdoor environments, concealing the optical cable within the storage cavity provides protection compared to exposing it, and also enhances the aesthetics of the structure. Additionally, by placing the turntable 102 inside the storage cavity 103, the dimensions of the cable retrieval structure along the H direction, as shown in Figure 3, can be reduced.

[0059] In addition, the cable delivery and take-up structure and fiber distribution box can be assembled on-site according to the different optical cable lengths and fiber distribution capacities required at the construction site. Of course, the cable delivery and take-up structure and fiber distribution box can also be assembled before being transported to the construction site to improve construction efficiency.

[0060] In practice, the height of the storage cavity can be designed according to the length of the optical cable and the number of connectors (i.e., the diameter of the optical cable) to ensure that the optical cable is located inside the storage cavity.

[0061] There are various types of structures in which the turntable 102 is rotatably connected to the base 101. The following two embodiments will be used to explain and illustrate these structures.

[0062] In Embodiment 1, referring to Figure 3, a fixed shaft 104 is provided inside the storage cavity 103. The axis of the fixed shaft 104 is collinear with the rotation axis of the turntable 102. The turntable 102 has an insertion hole, and the turntable 102 is sleeved on the outside of the fixed shaft 104 through the insertion hole, and can rotate around the axis of the fixed shaft 104. By rotating the turntable and sleeved on the fixed shaft, the rotation of the turntable and the fiber distribution box relative to the base is achieved.

[0063] In practice, the fixed shaft 104 can be integrated with the base 101, or the fixed shaft 104 can be fixed to the base 101 by means of a connector.

[0064] In embodiment 2, the wall of the storage cavity 103 has a rotating track arranged circumferentially thereon, and the turntable and the fiber distribution box can rotate relative to the base along the rotating track.

[0065] In addition, the structure in which the turntable and the base are rotatably connected can be other structures, which will not be listed here.

[0066] The rotating connection structures of Embodiment 1 and Embodiment 2 described above are relatively simple. However, compared with Embodiment 2, it is more convenient to install and disassemble the turntable in Embodiment 1. Therefore, this application prefers to adopt the rotating connection structure of Embodiment 1.

[0067] When the turntable 102 is sleeved outside the fixed shaft 104, and the fiber distribution box 2 is relatively fixed to the turntable 102, a stop structure is included to prevent the fiber distribution box 2 and the turntable 102 from detaching from the fixed shaft 104 when rotating around it. This stop structure is used to prevent the fiber distribution box 2 and the turntable 102 from detaching from the fixed shaft 104. For example, referring to Figure 4, the fiber distribution box 2 and the turntable 102 are connected to the fixed shaft 104 by a connector (including bolts 502, rivets, or other connectors). The fixed shaft 104 has a through hole for the connector to pass through, and the fiber distribution box 2 has a nut 501 for locking the bolts 502. To allow the fiber distribution box 2 and the turntable 102 to rotate relative to the fixed shaft 104, the connector is sleeved inside a sleeve 503, and the sleeve 503 is sleeved inside the through hole and can rotate relative to the fixed shaft. In this way, the stop of the bolts and nuts ensures that the turntable will not detach from the fixed shaft 104. Of course, the stop structure can also be other structures, and any structure is within the protection scope of this application.

[0068] Referring to Figures 1 and 2, the base 101 is detachably connected to the fiber distribution box 2 via the connecting structure 3.

[0069] When the fiber optic cable does not need to be pulled, the fiber distribution box is connected to the base through the connecting structure to ensure the integrity of the entire structure. When the fiber optic cable needs to be pulled, the connecting structure is used to separate the fiber distribution box from the base so that the fiber distribution box and the turntable can rotate synchronously.

[0070] There are various types of connection structures for realizing the detachable connection between the fiber distribution box and the base, which are described below through two embodiments.

[0071] Example 1: The connection structure is a plug-in structure.

[0072] For example, the first connector includes a connecting pin and a first socket on the fiber distribution box, and the second connector includes a second socket on the base. The connecting pin passes through both the first and second sockets, and the connecting pin is clearance-fitted to both the first and second sockets. That is, when the fiber distribution box needs to be fixed to the base, the connecting pin passes through the first and second sockets in sequence; when the fiber distribution box needs to be separated from the base, the connecting pin is pulled out from the first and second sockets.

[0073] Example 2: The connection structure is a snap-fit ​​structure.

[0074] The snap-fit ​​structure has various implementable configurations. For example, referring to Figure 3, the connection structure includes a snap-fit ​​as a first connector and a slot as a second connector. The snap-fit ​​is disposed on the base 101, and the slot is formed on the fiber distribution box 2. As another example, the snap-fit ​​is disposed on the fiber distribution box, and the slot is formed on the base.

[0075] Because the snap-fit ​​structure is simple to operate and can improve the convenience of disassembly and assembly, this application prefers to adopt the snap-fit ​​structure.

[0076] When the base and fiber distribution box are connected via a snap-fit ​​structure, the cable delivery and take-up mechanism operates as follows: When cable delivery is required, the snap-fit ​​is removed from the slot, and the end of the optical cable passing through the cable outlet is pulled out. The fiber distribution box 2 and the turntable 102 will then rotate synchronously relative to the base 101 in the first rotation direction, thereby achieving cable delivery. When too much optical cable is pulled out, by causing the fiber distribution box 2 to rotate in the opposite direction to the first rotation, the turntable 102 will rotate synchronously to wind the excess optical cable onto the turntable.

[0077] To improve the performance of the buckle, referring to Figures 5 and 6, the buckle is rotatably connected to the base 101 via a pivot 303. That is, connecting the buckle to the base via the pivot 303, compared to connecting the buckle to the base using a flexible material structure, improves the buckle's service life.

[0078] Since the turntable 102 is rotated and set inside the storage cavity 103 (as shown in Figure 2), the operating space is limited when it is necessary to install or remove optical cables on the turntable 102, which will cause inconvenience to the construction. Alternatively, when it is necessary to maintain the optical cables wrapped on the turntable 102, it will still cause inconvenience to the construction.

[0079] To improve ease of construction, referring to Figures 7 and 11, the turntable 102 and the fiber distribution box 2 can move synchronously between a first position and a second position relative to the base 101. The direction of movement of the turntable 102 and the fiber distribution box 2 is consistent with the direction of the rotation axis of the turntable 102. Referring to Figure 7, when the turntable 102 and the fiber distribution box 2 move to the first position, the turntable 102 is located inside the disk storage cavity 103. Referring to Figure 11, when the turntable 102 and the fiber distribution box 2 move to the second position, the turntable 102 is located outside the disk storage cavity 103.

[0080] In other words, the turntable 102 and the fiber distribution box 2 can move between the first position and the second position. When the turntable 102 moves to the second position, the turntable 102 is located outside the storage cavity 103, which facilitates the installation, disassembly or maintenance of optical cables and improves the performance of the cable delivery structure.

[0081] There are various structures that enable the turntable 102 and the fiber distribution box 2 to move synchronously between the base 101 in a first position and a second position. Two embodiments are described below.

[0082] In Embodiment 1, the turntable 102 is connected to the base 101 via a telescopic structure. When the telescopic structure is extended, the turntable and the fiber distribution box are in the second position; when the telescopic structure is retracted, the turntable and the fiber distribution box are in the first position. That is, the extension and retraction of the telescopic structure causes the turntable and the fiber distribution box to move synchronously between the first and second positions.

[0083] The telescopic structure can employ a telescopic air cylinder or a telescopic hydraulic cylinder. The telescopic air cylinder drives the turntable and fiber distribution box to move between a first position and a second position. Specifically, the stroke of the telescopic air cylinder or telescopic hydraulic cylinder is controlled to ensure the movement of the turntable and fiber distribution box between the first and second positions.

[0084] Alternatively, a linear motor can be used to drive the turntable and fiber distribution box to move between the first and second positions.

[0085] In embodiment two, the turntable 102 can slide between a first position and a second position along the axis of the fixed shaft 104. To ensure that the turntable can slide between the first and second positions, when the turntable and the fiber distribution box slide to the first position, the turntable 102 abuts against the bottom of the disk storage cavity 103; the cable take-up and release structure also includes a limiting member, which is adapted to prevent the turntable 102 from disengaging from the fixed shaft 104 and to prevent the turntable 102 from moving towards the first position when the turntable 102 and the fiber distribution box 2 slide to the second position.

[0086] In practice, by applying tension to the turntable and the fiber distribution box, the turntable 102 can slide along the axial direction of the fixed shaft 104. When the turntable slides from the first position to the second position, the limiting member ensures that the turntable 102 is in the second position, neither disengaging from the fixed shaft nor moving towards the first position. When the turntable slides from the second position to the first position, the turntable 102 will contact the bottom of the disk storage cavity 103, thus preventing the turntable 102 from continuing to move.

[0087] The limiting member has a variety of feasible structures, which are explained below through three embodiments.

[0088] In Embodiment 1, referring to Figure 11, a first boss 1041 is provided on the outer wall surface of the fixed shaft 104, and is located near the end of the disk storage cavity opening. The first boss 1041 is arranged circumferentially along the fixed shaft 104. The wall surface of the insertion hole has an extension 1022 extending toward the fixed shaft 104. The extension 1022 is arranged circumferentially along the turntable 102. The extension 1022 is elastic and is located near the bottom of the disk storage cavity. A slot is provided on the extension 1022 for the first boss 1041 to be inserted into. The opening of the slot faces the fixed shaft. When the first boss 1041 is inserted into the slot, it can prevent the turntable 102 from disengaging from the fixed shaft 104 and prevent the turntable 102 from moving toward the first position.

[0089] In embodiment two, referring to Figure 14, the fixed shaft 104 has a first guide groove 601 at the end near the opening of the disk storage cavity. The first guide groove 601 is arranged circumferentially along the fixed shaft 104. Referring to Figure 15, when the turntable 102 slides to the second position, the connecting pin 7 passing through the side of the turntable is inserted into the first guide groove 601. That is, the turntable 102 is connected to the fixed shaft 104 by the connecting pin 7 to prevent the turntable 102 from detaching from the fixed shaft and sliding towards the first position. In addition, since the first guide groove 601 is arranged circumferentially along the fixed shaft, it ensures that the turntable cannot slide towards the second position or detach from the fixed shaft, without affecting the rotation of the turntable.

[0090] In embodiment three, the turntable 102 is connected to the fixed shaft 104 via a compression spring. One end of the compression spring is connected to the fixed shaft, and the other end is connected to the turntable 102. When the turntable is in the first position, the compression spring is in a compressed state; when the turntable is in the second position, the compression spring is in a free state. That is, when the turntable is in the second position, the compression spring pulls on the turntable, preventing it from detaching from the fixed shaft or moving towards the first position. In this structure, the elastic deformation of the compression spring is equal to the distance between the first and second positions, thus ensuring that the turntable can move between the first and second positions.

[0091] Compared to Embodiments 2 and 3, Embodiment 1 has a simpler structure, is easier to implement, and is located between the turntable and the fixed shaft, i.e., hidden inside the cable winding structure, thus improving the aesthetic appearance of the cable winding structure. Therefore, the limiting member of Embodiment 1 is preferred in this application.

[0092] When the base and the fiber distribution box are detachably connected by a connecting structure, if the connecting structure is in the open state, the fiber distribution box is separated from the base, and the turntable and the fiber distribution box may slide along the fixed axis to the second position.

[0093] To ensure that the turntable and fiber distribution box slide to the second position when needed, the cable take-up and take-down structure includes a locking element that can switch between a locked state and an unlocked state. When the locking element is in the locked state, it can prevent the turntable in the first position from moving to the second position, and when the locking element is in the unlocked state, it can allow the turntable in the first position to move to the second position.

[0094] The locking element has a variety of implementable structures, which are explained below through two embodiments.

[0095] In Embodiment 1, referring to Figures 7 and 8, a second protrusion is provided on the outer wall surface of the fixed shaft 104, near the end of the disk storage cavity opening. The second protrusions are spaced apart circumferentially along the fixed shaft, and a groove 1042 is formed between each two adjacent second protrusions. Referring to Figures 7 and 9, a rib 1021 is provided on the wall surface of the insertion hole of the turntable 102, and the rib 1021 is spaced apart circumferentially along the turntable 102. When the rib 1021 abuts against the second protrusion, it is in a locked state to prevent the turntable from sliding towards the second position along the axial direction of the fixed shaft. When the rib 1021 is opposite to the groove, it is in an unlocked state, and the turntable can slide towards the second position along the axial direction of the fixed shaft.

[0096] By using second bosses spaced apart circumferentially along the fixed axis and ribs spaced apart circumferentially along the turntable, the turntable is prevented from sliding from the first position to the second position, and the turntable can also be rotated circumferentially along the fixed axis. The use of matching second bosses and ribs as locking components results in a simple structure that is easy to manufacture.

[0097] In practice, when it is necessary to lock the locking component, the turntable is rotated so that the rib 1021 abuts against the second boss; when it is necessary to move the turntable along the fixed axis, the turntable is rotated so that the rib is opposite to the groove.

[0098] In embodiment two, referring to Figure 14, the fixed shaft 104 has a second guide groove 602 at one end near the bottom of the storage cavity. The second guide groove 602 is arranged circumferentially along the fixed shaft. When the turntable 102 slides to the first position, the connecting pin 7 passing through the side of the turntable is inserted into the second guide groove 602. That is, the turntable 102 is connected to the fixed shaft 104 by the connecting pin 7, i.e., in a locked state. When the connecting pin 7 is pulled out from the second guide groove 602, it is in an unlocked state, so the turntable can move along the fixed shaft to the second position.

[0099] When the locking member of Embodiment 2 is used, since the turntable is in the disk storage cavity in the first position, it is very inconvenient to insert or remove the connecting pin 7. Therefore, this application prefers the locking member shown in Embodiment 1.

[0100] Furthermore, the locking mechanism of Embodiment 1 can also achieve the following technical effects: To improve the overall aesthetics of the optical fiber distribution device, the outer contour of the distribution box is usually the same as the outer contour of the base (as shown in Figure 1). In this way, the distribution box 2 will cover the mounting hole 106 on the base 101 (as shown in Figure 16). When it is necessary to install the cable delivery structure on the wall through the connector passing through the mounting hole 106, the turntable and the distribution box are first rotated relative to the base to expose the mounting hole, and then the optical fiber distribution device can be installed on the wall. Therefore, this type of locking mechanism achieves both locking and unlocking functions while maintaining the aesthetics of the entire optical fiber distribution device.

[0101] In the first embodiment of the limiting member described above, a first boss 1041 is provided on the outer wall surface of the fixed shaft 104, with the first boss 1041 located near the end of the disk storage cavity opening; in the first embodiment of the locking member described above, a second boss is provided on the outer wall surface of the fixed shaft 104, with the second boss located near the end of the disk storage cavity opening. To simplify the structure, the first boss and the second boss can be a single boss, and this boss is spaced apart circumferentially along the fixed shaft. In this way, when the boss cooperates with the extension, it can limit the turntable, and when it cooperates with the rib, it can lock.

[0102] To ensure that the turntable 102 can still rotate relative to the fixed axis 104 when it is in the second position, as shown in Figures 12 and 13, the rib 1021 extends to one end of the turntable 102 near the bottom of the base 101. The end of the rib 1021 near the bottom of the base has a clearance groove 1023 for the second boss to pass through, and the clearance groove 1023 is opened along the circumference of the turntable 102. As shown in Figure 13, the rib that rotates with the turntable will not be interfered with by the second boss 1041. By opening the clearance groove 1023 on the rib 1021, when the turntable is rotated, the second boss can pass through the clearance groove, thus enabling the turntable to rotate.

[0103] The turntable can have various structures. For example, referring to Figure 11, the turntable includes a first baffle 801 and a second baffle 802 facing each other, connected by a connecting post 803. An insertion hole is formed on the connecting post 803, which is sleeved around a fixed shaft through the insertion hole. The connecting post 803 can rotate relative to the fixed shaft and slide along the axial direction of the fixed shaft. As another example, the turntable includes a rotating column, which is rotatably sleeved around the fixed shaft and can slide along the axial direction of the fixed shaft.

[0104] Compared to the second embodiment, in the first embodiment of the turntable described above, the optical cable is wound around the outside of the connecting post, and the first and second baffles prevent the optical cable from moving along the axial direction of the connecting post. Therefore, this application prefers the turntable structure of the first embodiment. Of course, the turntable can also have other structures, and any turntable structure is within the protection scope of this application.

[0105] In practice, since the fiber distribution box and the turntable are relatively fixed, they can rotate synchronously with the base. This allows the cable outlet to face the desired direction according to usage requirements. Similarly, the plug-in terminals of the fiber distribution box can also face the desired direction.

[0106] To increase the strength of the base 101, referring to Figure 16, reinforcing ribs 107 are provided around the base 101. That is, the strength of the base is increased by the reinforcing ribs 107 arranged around its perimeter. Additionally, referring to Figure 10, if the turntable needs to be rotated α relative to the fixed axis before it can slide along the axis, the line connecting the first end of the reinforcing rib 107 to the axis of the fixed axis is designated as the first straight line, and the line connecting the second end of the reinforcing rib 107 to the axis of the fixed axis is designated as the second straight line (the first and second ends are opposite each other), with an angle α between the first and second straight lines. In this way, the reinforcing rib 107 can serve as an indicator line to guide the turntable's rotation α relative to the fixed axis. For example, if the turntable needs to be rotated 45° relative to the fixed axis before it can slide along the axis, the angle between the first and second straight lines of the reinforcing rib can be set to 45°.

[0107] To further improve construction efficiency, the fiber optic cable distribution device also includes an optical cable wound on a turntable. One end of the optical cable is connected to the plug-in terminal of the distribution box to transmit the optical signal on the optical cable to the distribution box. Because the fiber optic cable distribution device also includes an optical cable wound on a turntable, the optical cable, distribution box, and cable take-up / deployment structure are integrated into a single component, which further improves construction efficiency.

[0108] To prevent twisting or interference with other structures at the end of the fiber optic cable that is plugged into the distribution box when it is pulled or pulled, a guide structure is installed on the distribution box. This guide structure guides the fiber optic cable to the plug-in end of the distribution box. This ensures that pulling or pulling the fiber optic cable will not affect the plug-in end, thus guaranteeing the plug-in performance of the fiber optic cable and the distribution box.

[0109] Referring to Figure 17, a baffle 201 is provided on the fiber distribution box 2. A guide groove is formed between the baffle 201 and the side wall of the fiber distribution box 2. The guide groove is a guide structure. The optical cable is laid along the guide groove and plugged into the plug end 202.

[0110] To further enhance the connection strength between the optical cable and the plug-in terminal 202 of the fiber distribution box, the optical cable laid in the guide groove is fixedly connected to the baffle by clamps. This further prevents the connection between the optical cable and the plug-in terminal from being affected when the other end of the optical cable is pulled. Moreover, the guide structure formed by this structure is simple and easy to implement.

[0111] In specific implementation, the fiber distribution box and the turntable are relatively fixed, and there are various feasible structures for the fixed connection between the fiber distribution box and the turntable. For example, the fiber distribution box and the turntable are connected by a fastener; as another example, referring to Figure 18, a mounting post 402 is provided on the side of the turntable 102 facing the fiber distribution box 2. The fiber distribution box has an insertion hole 403, the mounting post 402 extends into the insertion hole 403, and the connector 401 located in the insertion hole 403 is connected to the mounting post 402.

[0112] Since the insertion hole 403 on the fiber distribution box extends through the upper and lower surfaces of the fiber distribution box 2, in order to prevent dust from entering the interior of the fiber distribution box 2 through the insertion hole 403, as shown in Figure 18, a plug 404 is provided inside the insertion hole 403 on the upper surface of the fiber distribution box 2. That is, the plug 404 prevents dust from entering the fiber distribution box through the insertion hole 403.

[0113] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0114] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An optical fiber splitting device, characterized in that, include: Fiber distribution box, cable take-up and release structure, and connection structure, wherein the cable take-up and release structure is used to take up and release the optical cable connected to the fiber distribution box; The cable take-up and drop structure includes: The base has a storage cavity, which is connected to one surface of the base to form a storage cavity opening, and the base has a cable outlet that is connected to the storage cavity. A turntable is configured to store the optical cable. The turntable is installed in the storage cavity. The fiber distribution box is located on one side of the opening of the storage cavity. The turntable and the fiber distribution box are fixed relative to each other. The turntable and the fiber distribution box can rotate synchronously relative to the base. The connection structure includes: The first connector is disposed on the fiber distribution box; The second connector is disposed on the base and is detachably connected to the first connector.

2. The optical fiber splitting device according to claim 1, characterized in that, One of the first connector and the second connector is a buckle, and the other is a slot.

3. The optical fiber splitting device according to claim 1 or 2, characterized in that, The turntable and the fiber distribution box can move synchronously between a first position and a second position relative to the base. The direction of movement of the turntable and the fiber distribution box is consistent with the direction of the rotation axis of the turntable. When the turntable and the fiber distribution box move to the first position, the turntable is located in the disk storage cavity. When the turntable and the fiber distribution box move to the second position, the turntable is located outside the disk storage cavity.

4. The optical fiber splitting device according to claim 3, characterized in that, A fixed shaft is provided inside the storage cavity of the disk. The fixed shaft is fixed relative to the base. The axis of the fixed shaft is collinear with the rotation axis of the turntable. The turntable has an insertion hole. The turntable is sleeved on the fixed shaft through the insertion hole. The turntable and the fiber distribution box can rotate around the axis of the fixed shaft and can slide between the first position and the second position along the axis of the fixed shaft. When the turntable and the fiber distribution box slide to the first position, the turntable abuts against the bottom of the disk storage cavity; The cable take-up and drop structure also includes: A limiting member is provided, which is adapted to prevent the turntable from disengaging from the fixed shaft and to prevent the turntable from moving toward the first position when the turntable and the fiber distribution box slide to the second position.

5. The optical fiber splitting device according to claim 4, characterized in that, The limiting component includes: The first boss is disposed on the outer wall surface of the fixed shaft and near one end of the disk storage cavity opening. The first boss is disposed along the circumference of the fixed shaft. The wall of the socket has an extension extending toward the fixed axis. The extension is arranged around the circumference of the turntable. The extension is elastic. The extension is close to the bottom of the disk storage cavity. The extension has a slot for the first boss to be engaged. The slot opening faces the fixed axis. When the first boss is engaged in the slot, it can prevent the turntable from disengaging from the fixed shaft and prevent the turntable from moving toward the first position.

6. The optical fiber splitting device according to claim 4 or 5, characterized in that, The cable take-up and drop structure also includes: A locking element that can switch between a locked state and an unlocked state; When the locking member is in the locked state, it can prevent the turntable and the fiber distribution box located in the first position from moving towards the second position. When the locking member is in the unlocked state, it can allow the turntable and the fiber distribution box located in the first position to move towards the second position.

7. The optical fiber splitting device according to claim 6, characterized in that, The locking element includes: The second protrusion is disposed on the outer wall surface of the fixed shaft and near one end of the disk storage cavity opening. The second protrusion is spaced apart along the circumference of the fixed shaft, and a groove is formed between each two adjacent second protrusions. The ribs are provided on the wall of the insertion hole and are spaced apart along the circumference of the turntable. When the rib abuts against the second boss, it is in the locked state to prevent the turntable from sliding towards the second position along the axial direction of the fixed shaft; When the rib is opposite to the groove, it is in the unlocked state, and the turntable can slide along the axial direction of the fixed shaft toward the second position.

8. The optical fiber splitting device according to claim 7, wherein the rib extends to one end of the turntable near the bottom of the turntable cavity, and the end of the rib near the bottom of the turntable cavity has a clearance groove for the second boss to pass through, and the clearance groove is opened along the circumference of the turntable.

9. The optical fiber splitting device according to any one of claims 4 to 8, characterized in that, The turntable includes a first baffle and a second baffle, which are connected by a connecting post. The insertion hole is opened on the connecting post, and the connecting post is sleeved on the fixed shaft through the insertion hole. The connecting post can rotate around the axis of the fixed shaft and slide along the axial direction of the fixed shaft.

10. The optical fiber splitting device according to any one of claims 1 to 9, characterized in that, The optical fiber splitter also includes: An optical cable is wound around the turntable. One end of the optical cable is connected to the plug-in terminal of the fiber distribution box to transmit the optical signal on the optical cable to the fiber distribution box. The other end of the optical cable can pass through the cable outlet.

11. The optical fiber splitting device according to any one of claims 1 to 10, characterized in that, The fiber distribution box is equipped with a guide structure, which is used to guide the optical cable to connect to the plug-in terminal on the fiber distribution box.