Rapidly-fixed tail fiber of optical cable cross-connecting box

By designing a snap-fit ​​unit and a reset mechanism at the slots of the pigtail and the optical distribution module, the problem of the pigtail and the optical distribution module not being able to connect tightly is solved, realizing a fast and stable connection process and improving work efficiency.

CN224216916UActive Publication Date: 2026-05-08SHENZHEN BIYANG OPTICAL COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BIYANG OPTICAL COMM TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing pigtail and optical distribution module slots have errors, resulting in a loose connection and affecting work efficiency.

Method used

The design incorporates a snap-fit ​​unit and a reset mechanism, including a snap-fit ​​block, abutment rod, and spring, which enable rapid insertion and removal of the pigtail through specific operating steps, ensuring a tight connection.

Benefits of technology

It improves the tightness of the connection between the pigtail and the slot, avoids signal instability problems, simplifies the operation process, and improves the work efficiency of the staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an optical cable cross-connecting box tail fiber capable of being rapidly fixed, which relates to the field of tail fiber fixation and comprises an optical distribution module, the end part of the optical distribution module is conical, a plurality of slots are arranged on one side of the optical distribution module, tail fibers are arranged on the inner sides of the slots, and the tail fibers are fixed on the optical distribution module. A clamping unit and a reset mechanism are respectively arranged in the tail fiber, the clamping unit comprises two clamping blocks, the tops of the clamping blocks are provided with inclined planes, the clamping blocks are respectively arranged at the top and the bottom of the tail fiber, one side of each clamping block is provided with two abutting rods, and the abutting rods are connected with the clamping blocks. Arc-shaped limiting plates used for limiting the abutting rods are arranged on the upper portions of the two abutting rods correspondingly. According to the utility model, the clamping unit is arranged, and by designing a specific clamping block, an abutting rod and other structures, a worker can quickly insert the tail fiber into the slot according to set steps, and a complicated alignment or adjustment process is not needed, so that the working efficiency of the worker is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of pigtail fixing, specifically a pigtail for a fiber optic cable junction box that can be quickly fixed. Background Technology

[0002] An optical fiber junction box is a type of junction device that provides termination and patching for backbone optical cables and distribution layer optical cables. After the optical cable is introduced into the junction box, it is fixed, terminated, and distributed. Then, patch cords are used to connect the backbone optical cable and the distribution layer optical cable. The connection between the pigtail and the junction box is achieved through an optical distribution module. Therefore, after the optical distribution module is installed in the junction box, the pigtail can be connected to the optical distribution module.

[0003] When existing fiber optic pigtails are connected to optical distribution modules, slight errors in some slots of the modules can cause the pigtails to not connect tightly, resulting in a break in the connection. This necessitates workers to manually insert the pigtails into other slots, significantly reducing work efficiency. To address this issue, we provide a quick-fix fiber optic splice box pigtail design. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that errors in the production of some slots of the optical distribution module can cause the pigtail to fail to connect tightly with the slot of the optical distribution module, resulting in a break in the connection between the pigtail and the slot of the optical distribution module. This requires workers to insert the pigtail into other slots one by one, which greatly reduces the work efficiency of workers. The present invention provides a pigtail for an optical cable junction box that can be quickly fixed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pigtail for a quickly fixed optical cable junction box, comprising: an optical distribution module, the end of which is tapered, a plurality of slots installed on one side of the optical distribution module, a pigtail disposed inside the slots, and a snap-fit ​​unit and a reset mechanism disposed inside the pigtail, the snap-fit ​​unit comprising: a snap-fit ​​block, two snap-fit ​​blocks being provided, and the top of each snap-fit ​​block being provided with an inclined surface, respectively disposed at the top and bottom of the pigtail, and two abutment rods being provided on one side of each snap-fit ​​block, with an arc-shaped limiting plate above each of the two abutment rods for limiting the abutment rods.

[0006] As a further embodiment of this utility model: the snap-fit ​​unit includes two cylindrical slide rods that are fixedly connected to the bottom and top of the two snap-fit ​​blocks respectively. The top and bottom of the pigtail are provided with matching grooves that match the cylindrical slide rods, and the cylindrical slide rods are slidably connected to the pigtail through the matching grooves. A first spring is installed between the cylindrical slide rods and the matching grooves.

[0007] As a further embodiment of this utility model: the snap-fit ​​unit further includes two abutting rods that are slidably connected to one side of each snap-fit ​​block. Two rectangular sliders are fixedly connected to the outer wall of each abutting rod. A moving groove matching the rectangular slider is opened on the inner side of the snap-fit ​​block, and the rectangular slider is slidably connected to the snap-fit ​​block through the moving groove. A third spring is installed between the abutting rod and the snap-fit ​​block.

[0008] As a further embodiment of this utility model: the snap-fit ​​unit further includes two trapezoidal sliders fixedly connected to one side of the snap-fit ​​block. An auxiliary rod is provided on one side of the trapezoidal slider. A trapezoidal groove matching the trapezoidal slider is opened on the back of the auxiliary rod. The trapezoidal groove is slidably connected to the snap-fit ​​block through the trapezoidal slider. Two arc-shaped limiting plates are fixedly connected to the bottom of the auxiliary rod. A second spherical rod is fixedly connected to the top of the auxiliary rod. An abutment block that abuts against the second spherical rod is slidably connected inside the snap-fit ​​block. A first spherical rod that abuts against the abutment block is fixedly connected to the inner side of the slot. One end of the abutment block extends through to the outside of the snap-fit ​​block.

[0009] As a further embodiment of this utility model: the reset mechanism includes a fixing plate fixed to one side of the card block, and the fixing plate is disposed below the auxiliary rod, and a second spring is installed between the fixing plate and the auxiliary rod.

[0010] As a further embodiment of this utility model: the reset mechanism includes a fixing plate fixed to one side of the card block, and the fixing plate is disposed below the auxiliary rod, and a second spring is installed between the fixing plate and the auxiliary rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a snap-fit ​​unit, when the pigtail is inserted into the slot and the snap-fit ​​block is pushed a certain distance, the inclined surface at the bottom of the abutment rod contacts the pigtail, thereby pushing the abutment rod to move inward into the snap-fit ​​block until the top of the snap-fit ​​block is flush with the top of the pigtail. At this point, the abutment rod has completely moved into the inside of the snap-fit ​​block. Then, the operator continues to push the pigtail into the slot. When the snap-fit ​​block moves to the snap-fit ​​position of the slot, the first spring lifts the snap-fit ​​block through the cylindrical slide rod, and then the third spring pushes the abutment rod out. At this point, the operator continues to push the pigtail into the slot. When the pigtail reaches the innermost part of the slot, one end of the abutment rod will press against the snap-fit ​​position of the slot. The device limits the position of the pigtail. As the locking block moves, the first spherical rod contacts the abutment block and pushes the abutment block to move towards the second spherical rod inside the locking block. At this time, one end of the abutment block pushes the second spherical rod downward, while simultaneously driving the auxiliary rod to slide on the cylindrical slide bar, so that the arc-shaped limiting plate abuts the abutment rod, thereby limiting the abutment rod. At this time, the pigtail is completely limited, and the connection end between the pigtail and the slot is in the tightest state. By designing specific locking blocks, abutment rods and other structures, operators can quickly insert the pigtail into the slot by following the predetermined steps, without the need for complicated alignment or adjustment processes, thus greatly improving the work efficiency of the operators.

[0013] 2. By setting a reset mechanism, when the operator needs to remove the pigtail, they only need to press the two protrusions with two fingers at the same time. The two protrusions drive the connecting plate to move into the pigtail, and also drive the locking block to move. At this time, one end of the abutment block separates from the first ball rod. Under the action of the second spring, the arc-shaped limiting plate is lifted up. Then the operator continues to press the two protrusions until the locking block moves completely into the pigtail. Then the operator can pull the pigtail out of the slot by hand. Pressing the protrusions with fingers drives the relevant parts to move, causing the locking block to retract into the pigtail and release the limitation on the pigtail, making it convenient for the operator to remove the pigtail from the slot. The operation is simple and convenient, thereby greatly improving the operator's work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the pigtail fiber of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the slot in this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This is a schematic diagram of the internal structure of the card block of this utility model.

[0019] In the diagram: 1. Optical cable distribution module; 2. Slot; 3. Pigtail; 4. Connecting plate; 5. Protrusion; 6. Abutment rod; 7. Locking block; 8. Auxiliary rod; 9. Cylindrical slide rod; 10. First spring; 11. First spherical rod; 12. Abutment block; 13. Second spherical rod; 14. Trapezoidal groove; 15. Fixing plate; 16. Second spring; 17. Third spring; 18. Rectangular slider; 19. Trapezoidal slider; 20. Arc-shaped limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figures 1-5This embodiment provides a quick-fixing optical fiber junction box pigtail, including: an optical distribution module 1, the end of which is tapered, and a plurality of slots 2 installed on one side of the optical distribution module 1. Pigtails 3 are disposed inside the slots 2. A snap-fit ​​unit and a reset mechanism are respectively disposed inside the pigtails 3. The snap-fit ​​unit includes: two snap-fit ​​blocks 7, each with a sloping top, respectively disposed on the top and bottom of the pigtail 3. Two abutment rods 6 are disposed on one side of each snap-fit ​​block 7, and an arc-shaped limiting plate 20 is disposed above each abutment rod 6 for limiting its position. The snap-fit ​​unit includes two cylindrical sliding rods 9 fixedly connected to the bottom and top of the two snap-fit ​​blocks 7, respectively. Matching grooves matching the cylindrical sliding rods 9 are opened at the top and bottom of the pigtail 3, and the cylindrical sliding rods 9 are slidably connected to the pigtail 3 through the matching grooves. A first spring 10 is installed between the cylindrical sliding rods 9 and the matching grooves. The snap-fit ​​unit also includes a mechanism slidably connected to each snap-fit ​​block. Two abutting rods 6 on one side of the 7 are fixedly connected to two rectangular sliders 18 on the outer wall of each abutting rod 6. The inner side of the locking block 7 is provided with a moving groove that matches the rectangular slider 18, and the rectangular slider 18 is slidably connected to the locking block 7 through the moving groove. A third spring 17 is installed between the abutting rod 6 and the locking block 7. The locking unit also includes two trapezoidal sliders 19 fixedly connected to one side of the locking block 7. An auxiliary rod 8 is provided on one side of the trapezoidal slider 19. A trapezoidal groove 14 that matches the trapezoidal slider 19 is provided on the back of the auxiliary rod 8. The trapezoidal groove 14 is slidably connected to the locking block 7 through the trapezoidal slider 19. Two arc-shaped limiting plates 20 are fixedly connected to the bottom of the auxiliary rod 8. A second ball rod 13 is fixedly connected to the top of the auxiliary rod 8. An abutting block 12 that abuts against the second ball rod 13 is slidably connected inside the locking block 7. A first ball rod 11 that abuts against the abutting block 12 is fixedly connected to the inner side of the slot 2. One end of the abutting block 12 extends through to the outside of the locking block 7.

[0023] After the staff installs the optical distribution module 1 in the optical cable junction box, they place the locking block 7 facing upwards and insert the pigtail 3 into the slot 2. When the locking block 7 contacts the slot 2, it pushes the top and bottom of the pigtail 3 inwards through the slot 2. After the locking block 7 is pushed a certain distance, the inclined surface at the bottom of the abutment rod 6 contacts the pigtail 3, thus pushing the abutment rod 6 inwards until the top of the locking block 7 is flush with the top of the pigtail 3. At this point, the abutment rod 6 has completely moved into the interior of the locking block 7. Then, the worker continues to push the pigtail 3 into the slot 2. When the locking block 7 moves to the slot position of the slot 2, the locking block 7 is lifted by the cylindrical slide rod 9 under the action of the first spring 10, and then the abutment rod 6 is pushed out under the action of the third spring 17. At this time, the worker continues to push the pigtail 3 into the slot 2. When the pigtail 3 reaches the innermost end of the slot 2, one end of the abutment rod 6 will abut in the slot of the slot 2, limiting the position of the pigtail 3. At the same time as the locking block 7 moves, the first ball rod 11 and the abutment block 1... 2. Contact and push the abutment block 12 inside the locking block 7 towards the second spherical rod 13. At this time, one end of the abutment block 12 pushes the second spherical rod 13 downward, and at the same time drives the auxiliary rod 8 to slide on the cylindrical slide rod 9, so that the arc-shaped limiting plate 20 abuts against the abutment rod 6, thereby limiting the abutment rod 6. At this time, the pigtail 3 is completely limited, and the connection end of the pigtail 3 and the slot 2 is in the tightest state. The above operation allows the operator to quickly insert the pigtail 3 into the slot 2 and make the slot 2 and the pigtail 3 in the tightest state. During the insertion of the pigtail 3, the locking block 7, the abutment rod 6 and other components cooperate with the slot 2 to make the pigtail 3 and the slot 2 tightly connected, avoiding the problem of unstable optical signal transmission caused by looseness, such as signal interruption, increased loss, etc., ensuring the normal operation of the optical communication system. Moreover, by designing specific structures such as the locking block 7 and the abutment rod 6, the operator can quickly insert the pigtail 3 into the slot 2 by following the predetermined steps, without complicated alignment or adjustment process, thereby greatly improving the work efficiency of the operator.

[0024] Please see Figures 2-5 The reset mechanism includes a fixing plate 15 fixed to one side of the card block 7, and the fixing plate 15 is located below the auxiliary rod 8. A second spring 16 is installed between the fixing plate 15 and the auxiliary rod 8. The reset mechanism also includes a connecting plate 4 fixedly connected to the bottom of the card block 7, and a protrusion 5 is fixedly connected to the top of the connecting plate 4.

[0025] When the operator needs to remove the pigtail 3, they only need to press the two protrusions 5 with two fingers at the same time. The two protrusions 5 drive the connecting plate 4 to move into the pigtail 3, and drive the locking block 7 to move. At this time, one end of the abutment block 12 separates from the first ball rod 11. Under the action of the second spring 16, the arc-shaped limiting plate 20 is lifted. Then the operator continues to press the two protrusions 5 until the locking block 7 moves completely into the pigtail 3. Then the operator can pull the pigtail 3 out of the slot 2 by hand. The operation is simple and convenient, which greatly improves the operator's work efficiency.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pigtail for a quickly fixed optical cable junction box, characterized in that, include: An optical distribution module (1) has a tapered end. Multiple slots (2) are installed on one side of the optical distribution module (1). A pigtail (3) is installed inside each slot (2). A snap-fit ​​unit and a reset mechanism are respectively installed inside each pigtail (3). The snap-fit ​​unit includes: Two locking blocks (7) are provided, and the top of the locking blocks (7) is provided with an inclined surface, which is respectively provided at the top and bottom of the pigtail (3). Two abutting rods (6) are provided on one side of the locking blocks (7), and an arc-shaped limiting plate (20) for limiting the abutting rods (6) is provided above each of the two abutting rods (6).

2. The pigtail of the optical cable junction box that can be quickly fixed according to claim 1, characterized in that, The snap-fit ​​unit includes two cylindrical slide rods (9) that are fixedly connected to the bottom and top of the two snap-fit ​​blocks (7) respectively. The top and bottom of the pigtail (3) are provided with matching grooves that match the cylindrical slide rods (9), and the cylindrical slide rods (9) are slidably connected to the pigtail (3) through the matching grooves. A first spring (10) is installed between the cylindrical slide rods (9) and the matching grooves.

3. The pigtail of the optical cable junction box that can be quickly fixed according to claim 2, characterized in that, The latching unit also includes two abutment rods (6) that are slidably connected to one side of each latching block (7). Two rectangular sliders (18) are fixedly connected to the outer wall of each abutment rod (6). A moving groove matching the rectangular slider (18) is opened on the inner side of the latching block (7). The rectangular slider (18) is slidably connected to the latching block (7) through the moving groove. A third spring (17) is installed between the abutment rod (6) and the latching block (7).

4. The pigtail of the optical cable junction box that can be quickly fixed according to claim 3, characterized in that, The snap-fit ​​unit also includes two trapezoidal sliders (19) fixedly connected to one side of the snap-fit ​​block (7). An auxiliary rod (8) is provided on one side of the trapezoidal slider (19). A trapezoidal groove (14) matching the trapezoidal slider (19) is opened on the back of the auxiliary rod (8). The trapezoidal groove (14) is slidably connected to the snap-fit ​​block (7) through the trapezoidal slider (19). Two arc-shaped limiting plates (20) are fixedly connected to the bottom of the auxiliary rod (8). A second spherical rod (13) is fixedly connected to the top of the auxiliary rod (8). An abutment block (12) that abuts against the second spherical rod (13) is slidably connected inside the snap-fit ​​block (7). A first spherical rod (11) that abuts against the abutment block (12) is fixedly connected to the inside of the slot (2). One end of the abutment block (12) extends through to the outside of the snap-fit ​​block (7).

5. The pigtail of a quickly fixed optical cable junction box according to claim 4, characterized in that, The reset mechanism includes a fixing plate (15) fixed to one side of the card block (7), and the fixing plate (15) is located below the auxiliary rod (8). A second spring (16) is installed between the fixing plate (15) and the auxiliary rod (8).

6. The pigtail of a quickly fixed optical cable junction box according to claim 5, characterized in that, The reset mechanism also includes a connecting plate (4) fixedly connected to the bottom of the card block (7), and a protrusion (5) is fixedly connected to the top of the connecting plate (4).