Optical cable terminal box jumper fiber plug structure

Abstract

The utility model belongs to the technical field of optical fiber patch cord, and disclose the jumper tail fiber plug -pull structure of optical cable junction box, including optical cable adapter, the optical cable adapter is installed in the optical cable junction box, the one end of optical cable adapter is equipped with the mounting groove, the optical fiber connector is installed in the mounting groove, the optical fiber connector is equipped with the plug -pull assembly with mounting groove, the plug -pull assembly includes sleeve rod, the sleeve rod is connected with the optical fiber connector sliding sleeve, both ends of optical fiber connector are all fixedly connected with the joint block, two the joint block all is hollow, the inner surface of two joint block all is connected with the moving block slidingly, the utility model discloses through setting plug -pull assembly, in the sleeve rod sliding drive moving block movement, make the plug -in block can accurate and firmly card into the slot, realize the stable connection of optical fiber connector and optical cable adapter, effectively prevent the tail fiber loose and fall off, guarantee the stability of signal transmission.

Description

Technical Field

[0001] This utility model belongs to the field of fiber optic patch cord technology, specifically the patch cord pigtail plugging and unplugging structure of an optical cable junction box. Background Technology

[0002] With the rapid development of communication technology, optical fiber communication has been widely used in modern communication networks due to its advantages such as large capacity, high speed, and low loss. In the construction and maintenance of optical fiber communication networks, optical cable junction boxes, as important infrastructure, undertake the key tasks of connecting, distributing, and scheduling trunk optical cables and distribution optical cables.

[0003] Meanwhile, the patent specification with application number CN217787436U discloses a fiber optic patch cord for easy disassembly of a communication transmission device. "The fiber optic patch cord for easy disassembly of a communication transmission device includes two parts fixedly connected to one side end, two parts respectively opened on both sides end, two parts respectively fixedly connected to one side inner wall of two parts, two parts respectively located inside two parts, and two parts respectively fixedly connected to one side end of two parts. When it is necessary to insert or remove it into the device, it can be held and pressed into the inside, and then inserted or removed into the opening of the device to form a docking, so as to achieve the function of fixing it."

[0004] The existing fiber optic junction box patch cord pigtail plug-in structure usually adopts a direct plug-in method during use, lacking reliable fixing and positioning devices, resulting in unstable connections. When subjected to external force, it is easy to loosen or even fall off, affecting the signal transmission quality. Secondly, the traditional structure lacks an anti-accidental removal design. During routine maintenance or accidental contact, the pigtail is easily accidentally pulled out, causing communication interruption.

[0005] Therefore, a jumper pigtail plug-in structure for optical cable junction boxes is proposed to address the above issues. Utility Model Content

[0006] To address the problems mentioned in the background section, this utility model provides a jumper pigtail plug-in structure for an optical cable junction box. This structure enables a stable connection between the optical fiber connector and the optical cable adapter, effectively prevents the pigtail from loosening and falling off, ensures the stability of signal transmission, and effectively prevents the pigtail from being accidentally pulled out due to contact or misoperation, thus ensuring the continuity and reliability of the communication system.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a jumper pigtail plug-in structure for an optical cable junction box, comprising an optical cable adapter installed inside the optical cable junction box, one end of the optical cable adapter having an installation groove, an optical fiber connector installed in the installation groove, the optical fiber connector and the installation groove sharing a plug-in assembly, the plug-in assembly including a sleeve rod, the sleeve rod being slidably sleeved with the optical fiber connector, both ends of the optical fiber connector being fixedly connected to locking blocks, both locking blocks being hollow, both inner surfaces of the two locking blocks being slidably connected to moving blocks, both moving blocks being fixedly connected to the sleeve rod, both upper and lower ends of the two moving blocks being inclined, and both upper and lower ends of the two moving blocks being fixedly connected to insert blocks, both upper and lower ends of the installation groove having slots for use with the two insert blocks, both insert blocks on the same side penetrating the corresponding locking blocks and extending into the corresponding slots, one end of each of the two moving blocks being fixedly connected to two tension springs, both tension springs on the same vertical side being fixedly connected to the inner wall of one side of the corresponding locking block.

[0008] Preferably, both ends of the two movable blocks are fixedly connected to limit blocks, and the inner walls on both sides of the two snap-fit ​​blocks are provided with limit grooves for use with the limit blocks.

[0009] Preferably, the inclined surfaces of the two movable blocks are provided with guide grooves, and one end of each of the four movable blocks is fixedly connected to a guide block that cooperates with the guide groove.

[0010] Preferably, the outer surface of the sleeve is engraved with anti-slip texture.

[0011] Preferably, four metal springs are fixedly connected to the outer surface of the sleeve rod, and a fixing groove is provided at one end of the optical cable adapter. The fixing groove is connected to the mounting groove, and the inner surface of the mounting groove is provided with a groove for use with the four metal springs.

[0012] Preferably, a sealing gasket is fixedly connected to the end of the sleeve rod that fits into the fixing groove, and the sealing gasket is made of rubber.

[0013] Preferably, all four metal springs are arc-shaped, and all four metal springs are made of copper alloy.

[0014] Preferably, the inner surface of the fixing groove is provided with four positioning grooves, and the four positioning grooves are respectively connected to four recesses.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting up a plug-in assembly, allows the sliding rod to drive the moving block to move, so that the plug can be accurately and firmly inserted into the slot, realizing a stable connection between the fiber optic connector and the optical cable adapter, effectively preventing the pigtail from loosening and falling off, and ensuring the stability of signal transmission.

[0017] 2. This utility model uses a structure in which four metal springs fixedly connected to the outer surface of the sleeve rod cooperate with the fixing groove, recess, and positioning groove. Under the action of the metal springs elastically locking into the recess and positioning groove, an additional mechanical lock is formed. When an external force attempts to accidentally pull out the fiber optic connector, the locking action of the metal springs must overcome its elastic deformation force, thereby effectively preventing the pigtail from being pulled out due to accidental contact or misoperation, ensuring the continuity and reliability of the communication system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0020] Figure 3 This is a schematic cross-sectional view of the optical cable adapter of this utility model;

[0021] Figure 4 This is a schematic diagram of the fiber optic connector structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the snap-fit ​​block of this utility model;

[0023] Figure 6 This is a schematic diagram showing the disassembled structure of the movable block and the insert block of this utility model.

[0024] In the diagram: 1. Optical cable adapter; 2. Optical fiber connector; 3. Fixing slot;

[0025] 4. Plug-in assembly; 41. Sleeve; 42. Metal spring; 43. Sealing gasket;

[0026] 44. Snap-fit ​​block; 441. Limiting groove; 442. Limiting block; 443. Tension spring; 444. Moving block; 445. Insertion block; 446. Guide block; 447. Guide groove;

[0027] 5. Slot; 6. Groove; 7. Positioning groove; 8. Mounting groove. Detailed Implementation

[0028] 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.

[0029] like Figures 1 to 6 As shown, this utility model provides a jumper pigtail plug-in structure for an optical cable junction box, including an optical cable adapter 1. The optical cable adapter 1 is installed in the optical cable junction box. One end of the optical cable adapter 1 is provided with an installation groove 8. An optical fiber connector 2 is installed in the installation groove 8. The optical fiber connector 2 and the installation groove 8 are provided with a plug-in assembly 4.

[0030] The insertion assembly 4 includes a sleeve 41, which is slidably sleeved with the fiber optic connector 2. Both ends of the fiber optic connector 2 are fixedly connected to locking blocks 44, both of which are hollow. The inner surfaces of both locking blocks 44 are slidably connected to moving blocks 444, which are together fixedly connected to the sleeve 41. The upper and lower ends of both moving blocks 444 are inclined, and both ends of both moving blocks 444 are fixedly connected to insertion blocks 445. The upper and lower ends of the mounting groove 8 are provided with slots 5 for use with the two insertion blocks 445. The two insertion blocks 445 on the same side pass through the corresponding locking blocks 44 and extend to the corresponding insertion blocks. Inside the slot 5, two tension springs 443 are fixedly connected to one end of each of the two movable blocks 444. The two tension springs 443 on the same vertical side are fixedly connected to the inner wall of the corresponding snap-fit ​​block 44. The tension springs 443 are designed so that after pulling the sleeve rod 41 to retract the insert block 445 into the snap-fit ​​block 44, the tension springs 443 immediately retract and reset when the sleeve rod 41 is released, which drives the movable block 444 and the insert block 445 to automatically return to their positions. The next insertion and removal operation can be performed without manual adjustment, reducing steps and improving efficiency. Through the ingenious design of the insertion and removal component 4, the sleeve rod 41 drives the movable block 444, so that the insert block 445 can be accurately snapped into the slot 5 to achieve a stable connection.

[0031] Specifically, both ends of the two moving blocks 444 are fixedly connected to limit blocks 442, and the inner walls on both sides of the two snap-fit ​​blocks 44 are provided with limit grooves 441 that cooperate with the limit blocks 442. The cooperation between the limit blocks 442 and the limit grooves 441 effectively prevents the moving blocks 444 from shifting during the sliding process, further improving the stability and reliability of the plug-in assembly 4 and ensuring the accuracy of the connection structure.

[0032] like Figures 1 to 6As shown, guide grooves 447 are provided on the inclined surfaces of the two moving blocks 444, and guide blocks 446 that cooperate with the guide grooves 447 are fixedly connected to one end of the four moving blocks 444. The setting of guide grooves 447 and guide blocks 446 provides precise guidance for the sliding of the insertion block 445, so that the insertion block 445 can be inserted into the slot 5 more smoothly and accurately, reducing resistance and deviation during the insertion and removal process and improving operating efficiency.

[0033] Furthermore, the outer surface of the sleeve 41 is engraved with anti-slip texture. The anti-slip texture increases the friction between the sleeve 41 and the operator's hand, making the grip more stable and less prone to slipping during insertion and removal operations. This facilitates daily installation and disassembly operations and improves the user experience.

[0034] like Figures 1 to 6 As shown, four metal springs 42 are fixedly connected to the outer surface of the sleeve rod 41. One end of the optical cable adapter 1 is provided with a fixing groove 3, which is connected to the mounting groove 8. The inner surface of the mounting groove 8 is provided with a groove 6 that is used to cooperate with the four metal springs 42. The cooperation between the metal springs 42, the fixing groove 3, and the groove 6 forms an additional mechanical locking structure, which effectively prevents accidental disconnection caused by accidental contact or external force pulling, enhances the firmness and reliability of the connection, and ensures the stable operation of the communication system.

[0035] It is worth noting that a sealing gasket 43 is fixedly connected to the end of the sleeve rod 41 that fits into the fixing groove 3. The sealing gasket 43 is made of rubber. The rubber sealing gasket 43 can effectively prevent external dust, moisture and other substances from entering the optical cable adapter 1, protect the optical fiber connector 2, reduce the damage of environmental factors to the optical fiber, extend the service life of the equipment, and ensure the quality of signal transmission.

[0036] like Figures 1 to 6 As shown, all four metal springs 42 are arc-shaped and made of copper alloy. The arc-shaped copper alloy metal springs 42 have good elasticity and strength, which can not only ensure that they can be easily deformed and locked into the groove 6 when inserted, but also provide sufficient clamping force. At the same time, the copper alloy material has good wear resistance and corrosion resistance, ensuring long-term stability.

[0037] It is worth emphasizing that four positioning grooves 7 are provided on the inner surface of the fixing groove 3. The four positioning grooves 7 are connected to the four recesses 6 respectively. The setting of the positioning grooves 7 further improves the accuracy and stability of the metal spring 42 snap-fit, making the connection between the sleeve 41 and the optical cable adapter 1 more secure and reliable, preventing the sleeve 41 from rotating or shifting during use, and ensuring the overall structural performance.

[0038] Working principle and process: During installation, align the fiber optic connector 2 with the mounting slot 8 of the optical cable adapter 1, pull the sleeve rod 41, the sleeve rod 41 drives the movable block 444 fixedly connected to it to slide in the locking block 44. Because the upper and lower ends of the movable block 444 are inclined, during the sliding process, the insertion block 445 is driven into the locking block 44. At this time, the tension spring 443 is in a stretched state. Then push the fiber optic connector 2 into the mounting slot 8, release the sleeve rod 41, push the sleeve rod 41, and drive the movable block 444 to slide in the opposite direction, so that the insertion block 445 is accurately locked into the slots 5 at the upper and lower ends of the mounting slot 8, completing the initial fixation. At the same time, continue to push the sleeve rod 41, the metal spring piece 42 on the outer surface of the sleeve rod 41 is inserted into the groove 6 through the positioning groove 7 to form a double locking structure to prevent the fiber optic connector 2 from loosening or being accidentally pulled out. During disassembly, pull the sleeve rod 41. The sleeve rod 41 drives the moving block 444 to make the insert 445 retract into the snap-fit ​​block 44 despite the tension of the tension spring 443. At the same time, it overcomes the elasticity of the metal spring 42, causing the metal spring 42 to disengage from the groove 6 and the positioning groove 7, thus releasing the double lock. At this time, the fiber optic connector 2 can be pulled out from the mounting groove 8. Throughout the process, the limiting block 442 and the limiting groove 441 cooperate to prevent the moving block 444 from shifting. The guide groove 447 and the guide block 446 assist the insert 445 to slide accurately. The anti-slip texture of the sleeve rod 41 facilitates operation. The sealing gasket 43 plays a role in dust and water prevention, which together ensures the stable operation of the structure.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A patch cord pigtail plug-in structure for an optical cable junction box, comprising an optical cable adapter (1), characterized in that: The optical cable adapter (1) is installed in the optical cable junction box. One end of the optical cable adapter (1) is provided with an installation slot (8). An optical fiber connector (2) is installed in the installation slot (8). The optical fiber connector (2) and the installation slot (8) are provided with a plug-in assembly (4). The insertion / removal assembly (4) includes a sleeve (41), which is slidably sleeved with the optical fiber connector (2). Both ends of the optical fiber connector (2) are fixedly connected to locking blocks (44). Both locking blocks (44) are hollow, and their inner surfaces are slidably connected to movable blocks (444). Both movable blocks (444) are fixedly connected to the sleeve (41). The upper and lower ends of both movable blocks (444) are inclined. Both ends of the 44) are fixedly connected with plugs (445). Both ends of the mounting groove (8) are provided with slots (5) for use with the two plugs (445). The two plugs (445) on the same side pass through the corresponding snap-fit ​​block (44) and extend into the corresponding slot (5). One end of the two moving blocks (444) is fixedly connected with two tension springs (443). The two tension springs (443) on the same vertical side are fixedly connected to the inner wall of one side of the corresponding snap-fit ​​block (44).

2. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 1, characterized in that: Both ends of the two movable blocks (444) are fixedly connected to limit blocks (442), and the inner walls on both sides of the two snap-fit ​​blocks (44) are provided with limit grooves (441) for use with the limit blocks (442).

3. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 1, characterized in that: The inclined surfaces of the two movable blocks (444) are provided with guide grooves (447), and one end of each of the four movable blocks (444) is fixedly connected with a guide block (446) that is used in conjunction with the guide grooves (447).

4. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 1, characterized in that: The outer surface of the sleeve (41) is engraved with anti-slip texture.

5. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 1, characterized in that: Four metal springs (42) are fixedly connected to the outer surface of the sleeve rod (41). One end of the optical cable adapter (1) is provided with a fixing groove (3). The fixing groove (3) is connected to the mounting groove (8). The inner surface of the mounting groove (8) is provided with a groove (6) that is used to cooperate with the four metal springs (42).

6. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 5, characterized in that: A sealing gasket (43) is fixedly connected to one end of the sleeve rod (41) that fits into the fixing groove (3), and the sealing gasket (43) is made of rubber.

7. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 5, characterized in that: All four metal springs (42) are arc-shaped, and all four metal springs (42) are made of copper alloy.

8. The jumper pigtail plugging and unplugging structure of the optical cable junction box according to claim 5, characterized in that: The inner surface of the fixing groove (3) is provided with four positioning grooves (7), and the four positioning grooves (7) are respectively connected to the four grooves (6).

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