Optical cable fiber splitting device

Abstract

The embodiment of the present application provides an optical fiber splitting device, which relates to the technical field of optical communication equipment. The optical fiber splitting device includes: a fiber splitting box and a cable retracting and releasing structure and a connecting structure. The cable retracting and releasing structure is used to retract and release the optical cable connected to the fiber splitting box; the cable retracting and releasing structure includes: a base with a disk storage cavity, the disk storage cavity is connected to a surface of the base to form a disk storage cavity opening, and the base is provided with a cable outlet connected to the disk storage cavity; a turntable configured to store optical cables, the turntable is installed in the disk storage cavity, the fiber splitting box is arranged on one side of the disk storage cavity opening, the turntable and the fiber splitting box are relatively fixed, and the turntable and the fiber splitting box can rotate synchronously relative to the base; the connecting structure includes: a first connecting member, which is arranged on the fiber splitting box; a second connecting member, which is arranged on the base and is detachably connected to the first connecting member. The main purpose of the optical fiber splitting device provided by the embodiment of the present application is to solve the technical problems of low cable retracting and releasing efficiency, poor collection effect, and low assembly efficiency of the optical fiber splitting device in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of optical communication equipment, and in particular to an optical cable fiber splitting device. Background Art

[0002] As an important structure in optical transmission equipment, the fiber splitter box is usually hung on the wall of the residential stairwell, in the residential green belt or other places. Usually, the main optical cable is connected to the fiber splitter box to realize the optical fiber distribution function. The fiber splitter box is then connected to the indoor optical interface through several splitter cables, and finally the optical signal is connected to each user.

[0003] An optical fiber splitter typically consists of a splitter box, a cable reel, and optical cables. These three components are independent and require on-site assembly. The assembly process involves laying the optical cable, installing the splitter box and cable reel, connecting the laid optical cable to the splitter box, and finally storing the excess cable on the cable reel.

[0004] Since the fiber distribution box, cable tray and optical cable are independent of each other, they need to be assembled on site, which has many assembly steps, long construction time and low assembly efficiency. Summary of the Invention

[0005] The embodiments of the present application provide an optical cable fiber splitting device, the main purpose of which is to solve the technical problems of low cable retraction and release efficiency, poor retraction effect, and low assembly efficiency in the prior art optical cable fiber splitting device.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] The present application provides an optical cable fiber splitting device, comprising: a fiber splitting box, a cable retracting and releasing structure, and a connecting structure, wherein the cable retracting and releasing structure is used to retract and release the optical cable connected to the fiber splitting box;

[0008] The retractable cable structure includes:

[0009] The base has a disk storage cavity, the disk storage cavity is connected to a surface of the base to form a disk storage cavity opening, and the base is provided with a cable outlet connected to the disk storage cavity;

[0010] The turntable is configured to store optical cables. The turntable is installed in the disk storage cavity. The fiber distribution box is arranged on one side of the opening of the disk storage cavity. The turntable and the fiber distribution box are relatively fixed. The turntable and the fiber distribution box can rotate synchronously relative to the base.

[0011] The connection structure includes:

[0012] A first connecting piece is provided on the fiber distribution box;

[0013] The second connecting member is arranged on the base and is detachably connected to the first connecting member.

[0014] The optical cable fiber splitting device provided in the embodiment of the present application is configured such that a turntable is installed in the disk storage cavity of the base, and the turntable can rotate relative to the base. Furthermore, the turntable is relatively fixed to the fiber splitting box. That is, after one end of the optical cable wound on the turntable is plugged into the fiber splitting box, if the optical cable passing through the cable outlet is pulled, the fiber splitting box and the turntable will rotate synchronously in a first rotation direction, thereby releasing the cable. The required amount of optical cable can be pulled out. Compared with the prior art, there is no need to manually coil the excess optical cable. When the pulled-out excess optical cable needs to be collected, the fiber splitting box is arranged on one side of the disk storage cavity opening. In this way, the collection can be achieved by rotating the fiber splitting box in a second rotation direction opposite to the first rotation direction, which significantly improves the efficiency of cable collection and release. The base is connected to the fiber splitting box, and the optical cable can be wound on the turntable. During actual construction, there is no need to assemble the three on-site at the construction site, thereby improving construction efficiency.

[0015] In addition, since the turntable for storing the optical cable is arranged in the disc storage cavity, when the collection operation is carried out, the optical cable is restricted by the wall of the disc storage cavity, which can ensure that the optical cable wound on the turntable will not become loose, thereby improving the collection effect; at the same time, by hiding the optical cable in the disc storage cavity, it can protect the optical cable and improve the appearance.

[0016] In addition, the base and the fiber distribution box are detachably connected through the matching first and second connectors. When the optical cable does not need to be pulled, the fiber distribution box is connected to the base through the first and second connectors to ensure the integrity of the entire structure. When the optical cable needs to be pulled, the first and second connectors are disassembled to separate the fiber distribution box from the base, so that the fiber distribution box and the turntable can rotate synchronously relative to the base.

[0017] In a possible implementation, one of the first connector and the second connector is a buckle, and the other is a slot. Using the snap-fit ​​structure to connect the fiber distribution box and the base is easy to operate, and the snap-fit ​​structure formed by the buckle and the slot is simple in structure and easy to implement.

[0018] In a possible implementation, the connecting structure is a plug-in structure, the first connecting member includes a connecting pin and a first socket opened on the fiber distribution box, the second connecting member includes a second socket opened on the base, the connecting pin is passed through the first socket and the second socket, and the connecting pin is clearance-fitted with the first socket and the second socket.

[0019] In a possible implementation, the turntable and the fiber splitter box can be synchronously moved relative to the base between a first position and a second position, and the movement direction of the turntable and the fiber splitter box is consistent with the direction of the rotation axis of the turntable. When the turntable and the fiber splitter box are moved to the first position, the turntable is located in the disk storage cavity, and when the turntable and the fiber splitter box are moved to the second position, the turntable is located outside the disk storage cavity. Since the optical cable wound on the turntable is arranged in the disk storage cavity, it is difficult to operate when installing or maintaining the optical cable. However, by synchronously moving the turntable and the fiber splitter box relative to the base between the first position and the second position, when it is necessary to wind the optical cable on the turntable or maintain the optical cable, the turntable can be moved to the second position, so that the turntable moves from the disk storage cavity to the outside of the disk storage cavity. This facilitates operation and improves the performance of the entire optical cable fiber splitter device.

[0020] In a possible implementation, the turntable is connected to the base via a telescopic structure. When the telescopic structure is extended, the turntable and the fiber splitter box are in the second position. When the telescopic structure is retracted, the turntable and the fiber splitter box are in the first position. For example, a telescopic air cylinder or a telescopic oil cylinder is used to drive the turntable and the fiber splitter box to move between the first and second positions.

[0021] In a 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 between the first position and the second position.

[0022] In a possible implementation, a fixed shaft is provided in the disk storage cavity, the fixed shaft is fixed relative to the base, the axis of the fixed shaft is colinear with the rotation axis of the turntable, the turntable has a socket, 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 can slide along the axis of the fixed shaft between a first position and a second position; 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 retracting and releasing structure also includes: a limiter, which is suitable for preventing the turntable from separating from the fixed shaft and preventing the turntable from moving toward the first position when the turntable and the fiber distribution box slide to the second position. The turntable is slidably arranged on the fixed shaft. In a specific implementation, the turntable and the fiber distribution box are driven to move relative to the fixed shaft by push-pull forces, and the limiter is used to prevent the turntable from sliding out of the fixed shaft and preventing the turntable from sliding toward the second position. At the same time, 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.

[0023] In a possible implementation, the position-limiting member includes: a first boss, disposed on the outer wall of the fixed shaft, near one end of the disk storage cavity opening, and arranged circumferentially along the fixed shaft; a resilient extension extending toward the fixed shaft from the wall of the insertion hole, the extension arranged circumferentially along the turntable, and located near the bottom of the disk storage cavity. The extension defines a slot for the first boss to engage, with the slot opening facing the fixed shaft; when the first boss engages the slot, the turntable is prevented from disengaging from the fixed shaft and from moving toward the first position. By utilizing the first boss and the slot to cooperate in limiting the position of the turntable, the position-limiting member has a simple structure and is easy to implement.

[0024] In a possible implementation, the cable retracting and unretracting structure further includes a locking member 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 splitting box located in the first position from moving toward the second position, and when the locking member is in the unlocked state, it can allow the turntable and the fiber splitting box located in the first position to move toward the second position. When the base and the fiber splitting box are detachably connected via a connecting structure, if the fiber splitting box is separated from the base, the locking member is provided to prevent the turntable from sliding from the first position to the second position. In this way, the optical cable fiber splitting device can select whether the turntable rotates in the first position or the second position according to usage.

[0025] In a possible implementation, the locking member includes: a second boss, the second boss being disposed on the outer wall surface of the fixed shaft and proximate one end of the disk storage cavity opening, the second bosses being spaced apart along the circumference of the fixed shaft, with a groove formed between each adjacent second boss; and a rib, the rib being disposed on the wall surface of the turntable insertion hole and spaced apart along the circumference of the turntable; the rib being in a locked state when abutting against the second boss, thereby preventing the turntable from sliding axially along the fixed shaft toward the second position; and the rib being in an unlocked state when facing the groove, thereby enabling the turntable to slide axially along the fixed shaft toward the second position. The second bosses spaced apart along the circumference of the fixed shaft and the ribs spaced apart along the circumference of the turntable prevent the turntable from sliding from the first position to the second position while also allowing the turntable to rotate circumferentially along the fixed shaft. The use of the mating second bosses and ribs as the locking member provides a simple structure and is easy to manufacture.

[0026] In a possible implementation, the rib extends to one end of the turntable near the bottom of the disk storage cavity, and the rib near the bottom of the disk storage cavity has an escape groove for the second boss to pass through, with the escape groove extending along the circumference of the turntable. If the turntable in the second position is to be rotated, the rib on the turntable will interfere with the second boss, preventing the turntable from rotating. However, if the escape groove is provided on the rib, the second boss can pass through the escape groove when the turntable is rotated, thereby allowing the turntable to rotate.

[0027] In a possible implementation, the turntable includes a first baffle and a second baffle facing each other, connected by a connecting post. A socket is defined on the connecting post, which is sleeved onto the fixed shaft through the socket. The connecting post is capable of rotating about the axis of the fixed shaft and sliding along the axis of the fixed shaft. In a specific implementation, an optical cable can be wound around the connecting post, and the first and second baffles can limit the optical cable, ensuring that the cable wrapped around the connecting post does not slip off the connecting post.

[0028] In a possible implementation, the optical fiber splitting device further includes an optical cable wound around a turntable, one end of the optical cable connected to a plug-in terminal of a fiber splitting box to transmit the optical signal on the optical cable to the fiber splitting box, and the other end of the optical cable capable of passing through a cable outlet. Because the optical fiber splitting device also includes the optical cable wound around the turntable, the optical cable, fiber splitting box, and cable retractable / release mechanism are integrated into a single structure, further improving construction efficiency.

[0029] In a possible implementation, a guide structure is provided on the fiber splitting box, and the guide structure is used to guide the optical cable to connect with the plug interface on the fiber splitting box. By providing the guide structure, the optical cable is connected with the plug interface of the fiber splitting box.

[0030] In a possible implementation, the guide structure includes a guide groove. Using the guide groove as the guide structure has a simple structure and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the appearance and structure of the optical cable fiber splitting device provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 Schematic diagram of the structure after the fiber distribution box and cable retracting and releasing structure are decomposed;

[0033] Figure 3 for Figure 1 Schematic diagram of the structure of the fiber distribution box, base and turntable after decomposition;

[0034] Figure 4 A schematic diagram of the connection relationship between the fiber distribution box, the turntable and the base provided in an embodiment of the present application;

[0035] Figure 5 A schematic diagram of the structure of the buckle provided in an embodiment of the present application;

[0036] Figure 6 A schematic diagram of the connection between the buckle and the base provided in an embodiment of the present application;

[0037] Figure 7 A state diagram of the turntable provided in an embodiment of the present application when it is in a first position relative to the fixed axis;

[0038] Figure 8 A top view of a fixed shaft provided in an embodiment of the present application;

[0039] Figure 9 A top view of a turntable provided in an embodiment of the present application;

[0040] Figure 10 A diagram showing a state in which the turntable provided in an embodiment of the present application is in a first position and rotated relative to a fixed axis;

[0041] Figure 11 A state diagram of the turntable provided in an embodiment of the present application when it slides from a first position to a second position;

[0042] Figure 12 A diagram showing a state in which the turntable provided in an embodiment of the present application is in a second position and rotated relative to a fixed axis;

[0043] Figure 13 for Figure 12 A magnified view of point A;

[0044] Figure 14 A state diagram of the turntable provided in an embodiment of the present application when it is in the first position;

[0045] Figure 15 A state diagram of the turntable provided in an embodiment of the present application when it slides from a first position to a second position;

[0046] Figure 16 A top view of the base provided in an embodiment of the present application;

[0047] Figure 17 A schematic structural diagram of the guide structure on the fiber distribution box provided in an embodiment of the present application;

[0048] Figure 18 This is a schematic diagram of the connection relationship between the fiber distribution box and the turntable provided in an embodiment of the present application.

[0049] Reference numerals:

[0050] 1-cable retracting and releasing structure; 101-base; 102-turntable; 1021-convex rib; 1022-extension portion; 1023-avoidance groove; 103-disc storage cavity; 104-fixed axis; 1041-first boss; 1042-groove; 105-cable outlet; 106-mounting hole; 107-reinforcement rib; 2-fiber distribution box; 201-baffle; 202-plug-in end; 3-connection structure; 301-second connecting piece; 302-first connecting piece; 303-rotating shaft; 401-connecting piece; 402-mounting column; 403-insertion hole; 404-blocking 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 column. DETAILED DESCRIPTION

[0051] The embodiments of the present application relate to an optical cable fiber splitting device, which is described in detail below with reference to the accompanying drawings.

[0052] Reference Figure 1 、 Figure 2 and Figure 3 The optical cable fiber distribution device includes a fiber distribution box 2, a cable retracting and releasing structure 1, and a connecting structure 3. The cable retracting and releasing structure 1 is used to retract and release the optical cable connected to the fiber distribution box 2. It includes a base 101 and a turntable 102. The base 101 has a disk storage cavity 103. The disk storage cavity 103 is connected to a surface of the base 101 to form a disk storage cavity opening. The base 101 is provided with a cable outlet 105 connected to the disk storage cavity 103. The turntable 102 is configured to store optical cables. The turntable 102 is installed in the disk storage cavity 103. The fiber distribution box 2 is arranged on one side of the disk storage cavity opening. The turntable 102 is relatively fixed to the fiber distribution box 2. The turntable 102 and the fiber distribution box 2 can rotate synchronously relative to the base 101. The connecting structure 3 includes: a first connecting member 302 arranged on the fiber distribution box 2, and a second connecting member 301 arranged on the base 101 and detachably connected to the first connecting member 302.

[0053] During specific implementation, the optical cable is wound on the turntable 102 , and one end of the optical cable is plugged into the fiber splitter box 2 to transmit the optical signal to the fiber splitter 2 , and then the optical signal is distributed through the fiber splitter box 2 .

[0054] Since the optical cable is wound on the turntable, when the end of the optical cable that passes through the cable outlet 105 (this end refers to the end of the optical cable that is not plugged into the fiber distribution box) is pulled out, the turntable 102 and the fiber distribution box 2 will rotate relative to the base 101 along the first rotation direction to achieve cable release, and the amount of optical cable that needs to be laid is the same as the amount of optical cable pulled out. Compared with the existing technology, there is no need to manually coil the excess optical cable that is pulled out. In addition, even if too much optical cable is pulled out, the fiber distribution box 2 and the turntable 102 can be rotated along the second rotation direction opposite to the first rotation direction to achieve the collection. Therefore, the optical cable fiber distribution device provided by the embodiment of the present application can effectively improve the construction efficiency of cable collection and release.

[0055] Because the fiber splitter box 2 is relatively fixed to the turntable 102, that is, the fiber splitter box 2 will rotate relative to the base 101 synchronously with the rotating turntable 102, this will not cause the optical cable plugged into the fiber splitter box and wound on the turntable to be twisted or even interfere with other structures.

[0056] Since the turntable 102 is installed in the disk storage cavity 103, when collecting, the recovered optical cable passes through the wall of the disk storage cavity 103, and will not become loose after being wound on the turntable, thus correspondingly improving the collection effect. At the same time, since the cable retracting structure is generally set up in a harsh outdoor environment, compared with exposing the optical cable, hiding the optical cable in the disk storage cavity will protect the optical cable and improve the appearance of the cable retracting structure. By setting the turntable 102 in the disk storage cavity 103, the cable retracting structure can also be reduced. Figure 3 Dimensions along the H direction are shown.

[0057] In addition, the cable retractable structure and fiber splitter box can be assembled on-site according to the different cable lengths and fiber splitter capacities required at the construction site. Of course, the cable retractable structure and fiber splitter box can also be assembled before transporting to the construction site to improve construction efficiency.

[0058] In specific implementation, the height of the disk storage cavity can be designed according to the length of the optical cable and the number of connectors of the optical cable (ie, the diameter of the optical cable) to ensure that the optical cable is located in the disk storage cavity.

[0059] There are many situations in which the turntable 102 is rotatably connected to the base 101 , which are explained below through two embodiments.

[0060] Example 1, refer to Figure 3 A fixed shaft 104 is provided in the disk storage cavity 103. The axis of the fixed shaft 104 is colinear with the rotation axis of the turntable 102. The turntable 102 has a socket. The turntable 102 is sleeved on the outside of the fixed shaft 104 through the socket and can rotate around the axis of the fixed shaft 104. By sleeved the turntable on the fixed shaft, the turntable and the fiber distribution box can rotate relative to the base.

[0061] During specific implementation, the fixed shaft 104 can be designed as an integral structure with the base 101, or the fixed shaft 104 can be fixed to the base 101 through a connecting piece.

[0062] In the second embodiment, the wall surface of the disk storage cavity 103 has a rotating track arranged along its circumference, and the turntable and the fiber distribution box can rotate relative to the base along the rotating track.

[0063] In addition, the structure of the rotational connection between the turntable and the base can also be other structures, which are not listed here.

[0064] The structures of the rotational connection methods of the above-mentioned embodiment 1 and embodiment 2 are relatively simple. However, compared with embodiment 2, embodiment 1 is more convenient to install and disassemble the turntable. Therefore, this application prefers to adopt the rotational connection structure of embodiment 1.

[0065] When the turntable 102 is sleeved outside the fixed shaft 104 and the fiber box 2 and the turntable 102 are relatively fixed, in order to prevent the fiber box 2 and the turntable 102 from coming off the fixed shaft 104 when rotating around the fixed shaft 104, a stop structure is also included. The stop structure is used to prevent the fiber box 2 and the turntable 102 from coming off the fixed shaft 104. For example, referring to Figure 4 The fiber box 2 and the turntable 102 are connected to the fixed shaft 104 via connectors (including bolts 502, rivets, or other connectors). The fixed shaft 104 is provided with a through-hole for the connector to pass through, and the fiber box 2 is provided with a nut 501 for locking the bolt 502. In order to enable the fiber box 2 and the turntable 102 to rotate relative to the fixed shaft 104, the connector is sleeved within a sleeve 503, and the sleeve 503 is sleeved within the through-hole and can rotate relative to the fixed shaft. In this way, the turntable can be prevented from falling off the fixed shaft 104 by the stop of the bolts and nuts. Of course, the stop structure can also be other structures, and any structure is within the scope of protection of this application.

[0066] Reference Figure 1 and Figure 2 The base 101 is detachably connected to the fiber distribution box 2 through the connecting structure 3.

[0067] When there is no need to pull out the optical cable, the fiber splitter box is connected to the base through the connecting structure to ensure the integrity of the entire structure. When the optical cable needs to be pulled out, the fiber splitter box is separated from the base using the connecting structure so that the fiber splitter box and the turntable can rotate synchronously.

[0068] There are many structures of the connection structure 3 for realizing the detachable connection between the fiber distribution box and the base, which are described below through two embodiments.

[0069] In the first embodiment, the connection structure is a plug-in structure.

[0070] For example, the first connector includes a connecting pin and a first socket on the fiber splitter box, and the second connector includes a second socket on the base. The connecting pin passes through the first and second sockets, and the connecting pin and the first and second sockets are both clearance fits. That is, when the fiber splitter box needs to be fixed to the base, the connecting pin passes through the first and second sockets in sequence; when the fiber splitter box needs to be separated from the base, the connecting pin is pulled out of the first and second sockets.

[0071] In the second embodiment, the connection structure is a snap-on structure.

[0072] The clamping structure has a variety of practicable structures, for example, refer to Figure 3 The connection structure includes: a buckle as a first connector and a slot as a second connector, the buckle is provided on the base 101, and the slot is provided on the fiber distribution box 2. For another example, the buckle is provided on the fiber distribution box, and the slot is provided on the base.

[0073] Because the snap-fit ​​structure is easy to operate and can improve the convenience of assembly and disassembly, the present application prefers to adopt the snap-fit ​​structure.

[0074] When the base and the fiber distribution box are connected by a snap-fit ​​structure, the cable retracting and releasing mechanism operates as follows: when cable release is required, the snap 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 then rotate synchronously relative to the base 101 in a first rotational direction, thereby releasing the cable. If an excessive amount of optical cable is pulled out, the fiber distribution box 2 is rotated in a direction opposite to the first rotational direction, which drives the turntable 102 to rotate synchronously, thereby winding the excess optical cable onto the turntable.

[0075] In order to improve the performance of the buckle, refer to Figure 5 and Figure 6 The buckle is rotatably connected to the base 101 through the rotating shaft 303. That is, the buckle is connected to the base through the rotating shaft 303, which improves the service life of the buckle compared to the buckle connected to the base through a structure of flexible material.

[0076] Since the turntable 102 is rotatably disposed in the disk storage cavity 103 (eg Figure 2 As shown), when it is necessary to install or remove the optical cable on the turntable 102, the operating space is limited, which will cause inconvenience to the construction, or when it is necessary to maintain the optical cable wound on the turntable 102, it will still cause inconvenience to the construction.

[0077] In order to improve the convenience of construction, refer to Figure 7 and Figure 11 The turntable 102 and the fiber distribution box 2 can move synchronously between the first position and the second position relative to the base 101. The moving direction of the turntable 102 and the fiber distribution box 2 is consistent with the direction of the rotation axis of the turntable 102. Figure 7 When the turntable 102 and the fiber distribution box 2 move to the first position, the turntable 102 is located in 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.

[0078] That is to say, the turntable 102 and the fiber distribution box 2 can move between a first position and a second position. When the turntable 102 moves to the second position, the turntable 102 is located outside the disk storage cavity 103, so that operations such as installation, disassembly or maintenance of the optical cable can be facilitated to improve the performance of the cable retracting and releasing structure.

[0079] There are various structures for achieving synchronous movement of the turntable 102 and the fiber distribution box 2 relative to the base 101 between the first position and the second position, which are described below using two embodiments.

[0080] In the first embodiment, the turntable 102 is connected to the base 101 via a telescopic structure. When the telescopic structure is extended, the turntable and the fiber splitter box are in the second position. When the telescopic structure is retracted, the turntable and the fiber splitter box are in the first position. In other words, the telescopic structure's expansion and contraction drive the turntable and the fiber splitter box to move synchronously between the first and second positions.

[0081] The telescopic structure can use a telescopic cylinder or a telescopic oil cylinder, and the turntable and the fiber distribution box can be driven to move between the first position and the second position by the telescopic cylinder. Specifically, the travel of the telescopic cylinder or the telescopic oil cylinder is controlled to ensure that the turntable and the fiber distribution box can move between the first position and the second position.

[0082] In addition, a linear motor may be used to drive the turntable and the fiber distribution box to move between the first position and the second position.

[0083] In the second embodiment, the turntable 102 is capable of sliding 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 turntable storage cavity 103. The cable retracting and releasing structure also includes a stopper, which is adapted to prevent the turntable 102 from disengaging from the fixed shaft 104 and from moving toward the first position when the turntable 102 and the fiber distribution box 2 slide to the second position.

[0084] In specific implementation, by applying tension to the turntable and the fiber distribution box, the turntable 102 can slide axially along the fixed shaft 104. When the turntable slides from the first position to the second position, the limit member is used to limit the turntable 102 to the second position, and it can neither separate from the fixed shaft nor move toward 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, thereby preventing the turntable 102 from continuing to move.

[0085] The limiting member has a variety of practicable structures, which are explained below using three embodiments.

[0086] Example 1, refer to Figure 11 A first boss 1041 is provided on the outer wall surface of the fixed shaft 104, and is close to one end of the disk storage cavity opening, and the first boss 1041 is arranged along the circumference of the fixed shaft 104; an extension portion 1022 extending toward the fixed shaft 104 is provided on the wall surface of the insertion hole, and the extension portion 1022 is arranged along the circumference of the turntable 102, and the extension portion 1022 is elastic. The extension portion 1022 is close to the bottom of the disk storage cavity, and a slot for the first boss 1041 to be snapped into is provided on the extension portion 1022, and the notch of the slot faces the fixed shaft. When the first boss 1041 is snapped into the slot, it can prevent the turntable 102 from escaping from the fixed shaft 104 and prevent the turntable 102 from moving toward the direction close to the first position.

[0087] Example 2, refer to Figure 14 The end of the fixed shaft 104 close to the disk storage cavity opening has a first guide groove 601, and the first guide groove 601 is arranged along the circumference of the fixed shaft 104. Figure 15 When the turntable 102 slides to the second position, the connecting pin 7, which extends through the side of the turntable, enters the first guide slot 601. This connects the turntable 102 to the fixed shaft 104 via the connecting pin 7, preventing the turntable 102 from separating from the fixed shaft and sliding toward the first position. Furthermore, because the first guide slot 601 is arranged along the circumference of the fixed shaft, the turntable 102 is prevented from sliding toward the second position and separating from the fixed shaft without affecting its rotation.

[0088] In the third embodiment, 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 compressed. When the turntable is in the second position, the compression spring is free. That is, when the turntable is in the second position, the compression spring pulls the turntable so that it neither disengages from the fixed shaft nor moves toward 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.

[0089] Since the first embodiment is simpler in structure and easier to implement than the second and third embodiments, and is disposed between the turntable and the fixed shaft, that is, hidden inside the cable retractable structure and not exposed to the outside, thus improving the appearance of the cable retractable structure, the present application is preferred over the limiter of the first embodiment.

[0090] When the base and the fiber splitting box are detachably connected via the connecting structure, if the connecting structure is in an open state, the fiber splitting box is separated from the base, and the turntable and the fiber splitting box may slide to the second position along the fixed axis.

[0091] In order to ensure that the turntable and the fiber distribution box slide to the second position when needed, the cable retracting and releasing structure includes a locking member, which can switch between a locked state and an unlocked state; when the locking member is in the locked state, it can prevent the turntable located in the first position from moving toward the second position, and when the locking member is in the unlocked state, it can allow the turntable located in the first position to move toward the second position.

[0092] The locking member has various possible structures, which are explained below using two embodiments.

[0093] Example 1, refer to Figure 7 and Figure 8 A second boss is provided on the outer wall of the fixed shaft 104, and is close to one end of the disk storage cavity opening. The second bosses are spaced apart along the circumference of the fixed shaft, and a groove 1042 is formed between each adjacent two second bosses. Figure 7 and Figure 9 A rib 1021 is provided on the wall surface of the insertion hole of the turntable 102, and the ribs 1021 are arranged at intervals along the circumference of the turntable 102; when the rib 1021 abuts against the second boss, it is in a locked state to prevent the turntable from sliding toward 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 toward the second position along the axial direction of the fixed shaft.

[0094] By means of second bosses arranged at intervals along the circumference of the fixed shaft and ribs arranged at intervals along the circumference of the turntable, the turntable in the first position is prevented from sliding to the second position, and the turntable can also be rotated along the circumference of the fixed shaft. The matching second bosses and ribs are used as locking members, which has a simple structure and is easy to manufacture.

[0095] In specific implementation, when the locking member needs to be locked, the turntable is rotated to make the rib 1021 abut against the second boss; when the turntable needs to be moved along the fixed axis, the turntable is rotated to make the rib face the groove.

[0096] Example 2, refer to Figure 14 The fixed shaft 104 has a second guide groove 602 at one end near the bottom of the disc storage cavity. The second guide groove 602 is arranged along the circumference of 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. The turntable 102 and the fixed shaft 104 are connected by the connecting pin 7, which is a locked state. When the connecting pin 7 is pulled out of the second guide groove 602, it is unlocked, and the turntable can move along the fixed shaft to the second position.

[0097] When the locking member of the second embodiment is used, since the turntable is in the disk storage cavity when in the first position, it is very inconvenient to insert and remove the connecting pin 7. Therefore, the present application is preferred to the locking member shown in the first embodiment.

[0098] In addition, the use of the locking member of the first embodiment can also achieve the following technical effects: In order to improve the appearance of the entire optical fiber distribution device, the outer contour of the fiber distribution box is usually the same as the outer contour of the base (such as Figure 1 As shown), in this case, the fiber distribution box 2 will cover the mounting hole 106 provided on the base 101 (as shown in FIG. Figure 16 As shown, when the cable retractable structure needs to be mounted on a wall via the connector passing through the mounting hole 106, the turntable and the fiber splitter box are first rotated relative to the base to expose the mounting hole, and the optical fiber splitter device can then be mounted on the wall. Therefore, this type of locking member achieves both locking and unlocking functions while maintaining an aesthetically pleasing appearance for the entire optical fiber splitter device.

[0099] In the first embodiment of the aforementioned position-limiting member, a first boss 1041 is provided on the outer wall of the fixed shaft 104, located near one end of the disk storage cavity opening. In the first embodiment of the aforementioned locking member, a second boss is provided on the outer wall of the fixed shaft 104, located near one end of the disk storage cavity opening. To simplify the structure, the first and second bosses can be a single boss, spaced apart along the circumference of the fixed shaft. This boss, when engaged with the extension, can limit the turntable and, when engaged with the rib, can provide a locking effect.

[0100] In order to realize that the turntable 102 can still rotate relative to the fixed shaft 104 when the turntable 102 is in the second position, Figure 12 and Figure 13 The rib 1021 extends to one end of the turntable 102 close to the bottom of the base 101, and the end of the rib 1021 close to the bottom of the base has an avoidance groove 1023 for the second boss to pass through, and the avoidance groove 1023 is opened along the circumference of the turntable 102; Figure 13 The ribs that rotate with the turntable will not be interfered with by the second boss. By providing an avoidance groove 1023 on the ribs 1021, when the turntable is rotated, the second boss can pass through the avoidance groove, so that the turntable can be rotated.

[0101] The structure of the turntable has many situations, for example, refer to Figure 11 The turntable includes a first baffle 801 and a second baffle 802 that are opposite to each other. The first baffle 801 and the second baffle 802 are connected by a connecting post 803. A socket is provided on the connecting post 803. The connecting post 803 is sleeved outside the fixed shaft through the socket. The connecting post 803 can rotate relative to the fixed shaft and can slide along the axial direction of the fixed shaft. In another example, the turntable includes a rotating post that is rotatably sleeved outside the fixed shaft and can slide along the axial direction of the fixed shaft.

[0102] Compared to the second embodiment, the first embodiment of the turntable described above has the optical cable wrapped around the exterior of the connecting post. The first and second baffles prevent the optical cable from moving axially along 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 scope of protection of this application.

[0103] In specific implementation, since the fiber distribution box is relatively fixed to the turntable, that is, it can rotate synchronously with the base, the cable outlet can be oriented in the required direction according to usage requirements. Similarly, the plug-in end of the fiber distribution box can also be oriented in the required direction.

[0104] In order to increase the strength of the base 101, refer to Figure 16 , the base 101 is provided with reinforcing ribs 107 in the circumferential direction. That is, the strength of the base is increased by the reinforcing ribs 107 provided around it. Figure 10 If the turntable needs to be rotated α relative to the fixed axis before it can slide along the axis of the fixed axis, the line connecting the first end of the reinforcing rib 107 and the axis center of the fixed axis is set as the first straight line, and the line connecting the second end of the reinforcing rib 107 and the axis center of the fixed axis is set as the second straight line (the first end and the second end are opposite each other), and the angle between the first and second straight lines is set to α. In this way, the reinforcing rib 107 can serve as an indicator line to rotate the turntable 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 of the fixed axis, the angle between the first and second straight lines of the reinforcing rib can be set to 45°.

[0105] To further improve construction efficiency, the optical fiber splitter device also includes an optical cable wound around a turntable. One end of the optical cable is connected to the plug-in terminal of the fiber splitter box to transmit the optical signal on the optical cable to the fiber splitter box. Since the optical fiber splitter device also includes an optical cable wound around a turntable, the optical cable, fiber splitter box, and cable retractable structure are integrated into a single assembly, which further improves construction efficiency.

[0106] When pulling out the optical cable, in order to prevent the end of the optical cable connected to the fiber splitter box from twisting or interfering with other structures, a guide structure is provided on the fiber splitter box to guide the optical cable into the connection end of the fiber splitter box. This way, when pulling out the optical cable, the end of the optical cable connected to the fiber splitter box will not be affected, thus ensuring the connection performance of the optical cable and the fiber splitter box.

[0107] Reference Figure 17 A baffle 201 is provided on the fiber distribution box 2, and a guide groove is formed between the baffle 201 and the side wall of the fiber distribution box 2. The guide groove is a guiding structure, and the optical cable is laid along the guide groove and plugged into the plug-in end 202.

[0108] To further enhance the connection strength between the optical cable and the connector 202 of the fiber distribution box, the optical cable routed within the guide slot is secured to the baffle via a clamp. This prevents the connection between the optical cable and the connector from being affected when the other end of the optical cable is pulled. This guide structure is simple and easy to implement.

[0109] In specific implementation, the fiber splitting box and the turntable are relatively fixed, and the fiber splitting box and the turntable are fixedly connected in a variety of practicable structures. For example, the fiber splitting box and the turntable are connected by a fixing member; for another example, refer to Figure 18 A mounting post 402 is provided on one 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 . The connector 401 in the insertion hole 403 is connected to the mounting post 402 .

[0110] Since the insertion hole 403 opened on the fiber splitting box passes through the upper and lower surfaces of the fiber splitting box 2, in order to prevent dust from entering the interior of the fiber splitting box 2 through the insertion hole 403, refer to Figure 18 A blocking cap 404 is provided in the insertion hole 403 on the upper surface of the fiber distribution box 2. That is, the blocking cap 404 prevents dust from entering the fiber distribution box through the insertion hole 403.

[0111] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0112] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. An optical cable fiber splitting device, characterized in that: include: A fiber distribution box and a cable retractable structure and a connection structure, wherein the cable retractable structure is used to retract and release the optical cable connected to the fiber distribution box; The retractable cable structure comprises: A base having a disk storage cavity, wherein the disk storage cavity is connected to a surface of the base to form a disk storage cavity opening; A turntable configured to store the optical cable, the turntable being installed in the tray storage cavity, the fiber distribution box being arranged on one side of the opening of the tray storage cavity, the turntable being relatively fixed to the fiber distribution box, and the turntable and the fiber distribution box being capable of synchronously rotating relative to the base; The connection structure includes: A first connecting member is provided on the fiber distribution box; a second connecting member, disposed on the base and detachably connected to the first connecting member; The turntable and the fiber distribution box can be synchronously moved between a first position and a second position relative to the base, and the movement direction 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. A fixed shaft is provided in the disc storage cavity, the fixed shaft is relatively fixed to the base, the axis of the fixed shaft is collinear with the rotation axis of the turntable, the turntable has a socket, the turntable is sleeved outside the fixed shaft through the socket, the turntable and the fiber distribution box can rotate around the axis of the fixed shaft, and can slide along the axis of the fixed shaft between the first position and the second position, when the turntable and the fiber distribution box slide to the first position, the turntable abuts against the bottom of the disc storage cavity; The retractable cable structure further comprises: a limiting member, adapted to prevent the turntable from being separated from the fixed shaft and from moving toward the first position when the turntable and the fiber distribution box slide to the second position; The limiting member includes: a first boss, the first boss being arranged on the outer wall surface of the fixed shaft and close to one end of the disk storage cavity opening, and the first boss being arranged along the circumference of the fixed shaft; An extension portion is provided on a wall surface of the insertion hole and extends toward the fixed axis. The extension portion is arranged along the circumference of the turntable, is elastic, and is close to the bottom of the disk storage cavity. A slot is provided on the extension portion for the first boss to be engaged, and the notch of the slot faces the fixed axis. When the first boss is locked in the locking groove, the turntable can be prevented from being separated from the fixed shaft and from moving toward the first position.

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

3. The optical cable fiber splitting device according to claim 1 or 2, characterized in that: The retractable cable structure further comprises: a locking member, wherein the locking member is switchable 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 at the first position from moving toward the second position. When the locking member is in the unlocked state, it can allow the turntable and the fiber distribution box located at the first position to move toward the second position.

4. The optical cable fiber splitting device according to claim 3, characterized in that: The locking member comprises: a second boss, the second boss being arranged on the outer wall surface of the fixed shaft and close to one end of the disk storage cavity opening, the second bosses being arranged at intervals along the circumference of the fixed shaft, and a groove being formed between every two adjacent second bosses; convex ribs, the convex ribs being arranged on the wall surface of the insertion hole and spaced apart along the circumference of the rotating disk; When the rib abuts against the second boss, the rib is in the locked state, so as to prevent the turntable from sliding toward the second position along the axial direction of the fixed shaft; When the rib is opposite to the groove, the rib is in the unlocked state, and the turntable can slide toward the second position along the axial direction of the fixed shaft.

5. The optical cable fiber splitting device according to claim 4, characterized in that: The rib extends to one end of the turntable close to the bottom of the disk storage cavity, and the end of the rib close to the bottom of the disk storage cavity has an avoidance groove for the second boss to pass through, and the avoidance groove is opened along the circumference of the turntable.

6. The optical cable fiber splitting device according to claim 1 or 2, characterized in that: The turntable includes a first baffle and a second baffle relative to each other, and the first baffle and the second baffle are connected by a connecting column. The socket is opened on the connecting column, and the connecting column is sleeved on the outside of the fixed shaft through the socket. The connecting column can rotate around the axis of the fixed shaft and can slide along the axial direction of the fixed shaft.

7. The optical cable fiber splitting device according to claim 3, characterized in that: The turntable includes a first baffle and a second baffle relative to each other, and the first baffle and the second baffle are connected by a connecting column. The socket is opened on the connecting column, and the connecting column is sleeved on the outside of the fixed shaft through the socket. The connecting column can rotate around the axis of the fixed shaft and can slide along the axial direction of the fixed shaft.

8. The optical cable fiber splitting device according to claim 1 or 2, characterized in that: The optical cable fiber splitting device also includes: An optical cable is wound on the turntable, and one end of the optical cable is connected to the plug-in end of the fiber distribution box to transmit the optical signal on the optical cable to the fiber distribution box.

9. The optical cable fiber splitting device according to claim 1 or 2, characterized in that: The fiber distribution box is provided with a guide structure, which is used to guide the optical cable to connect with the plug-in end on the fiber distribution box; The optical cable fiber splitting device also includes an optical cable, which can pass through a cable outlet. The cable outlet is opened on the base.

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