Optical cable connector box convenient for secondary opening
By using the embedded structure of the slot and the fixed bracket and the elastic transmission component, the problem of damage to traditional optical cable junction boxes during secondary opening is solved, realizing rapid opening and closing and a firm connection, improving maintenance efficiency and communication reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIZHOU XUGUANG COMM EQUIP
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-12
AI Technical Summary
The screw-fixing structure of traditional optical cable junction boxes is prone to damage when the box is opened a second time, resulting in a decrease in sealing performance and affecting maintenance efficiency and communication reliability.
The embedded structure of the slot and fixed frame, combined with the elastic transmission component and the retractable rubber strap, enables the main box and the auxiliary box to open and close quickly and connect firmly, avoiding wear and damage caused by screw removal.
It improves the efficiency of secondary opening of optical cable junction boxes, enhances sealing and structural stability, is suitable for complex environments, and reduces maintenance costs and the risk of communication interruption.
Smart Images
Figure CN224232018U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of optical cable junction boxes, and more specifically, to an optical cable junction box that is easy to open twice. Background Technology
[0002] During the maintenance and upgrade of optical fiber communication networks, optical fiber splice closures, as key components for connecting and protecting optical cables, often require secondary opening operations, such as adding new optical cables, troubleshooting, or adjusting lines. However, traditional optical fiber splice closures generally employ a structure design with numerous screws for fixation. This method reveals significant defects during secondary opening, severely impacting maintenance efficiency and potentially causing equipment damage.
[0003] In existing technologies, the top cover and base of an optical cable junction box are typically fastened with multiple sets of screws, each of which must be loosened individually to open the box. This process is not only time-consuming and labor-intensive, but also presents challenges, especially in field or high-altitude operations where operators must carry various tools, increasing the difficulty and safety risks. For example, in cold weather or complex terrain, screws may become difficult to tighten due to rust or deformation under stress, or even stripped or broken, further extending maintenance time. Furthermore, frequent screw removal can lead to thread wear, reducing the junction box's sealing and structural stability, potentially causing moisture intrusion and dust entry, thus affecting the long-term reliable operation of the optical cable.
[0004] More importantly, the extensive use of screws in the mounting structure makes the junction box itself susceptible to damage during secondary opening. In traditional designs, the plastic casing around the screw holes is subjected to compressive stress over a long period, which can lead to cracking and deformation after repeated disassembly, resulting in seal failure. For example, in older communication lines requiring frequent maintenance, it is common to replace junction boxes due to damage to the screw-mounted structure, which not only increases maintenance costs but may also cause temporary interruptions to communication services due to fiber optic cable breakage during the replacement process.
[0005] With the expansion of communication networks and the increasing demand for intelligent operation and maintenance, higher requirements are being placed on the convenient maintenance performance of fiber optic splice closures. Traditional screw-fixing methods are no longer adequate for the industry's needs for rapid response and efficient maintenance. Therefore, the development of a new type of fiber optic splice closure that requires no large number of screws, is easy to open and close, and is less prone to damage is urgently needed. Improving the connection structure to achieve rapid opening and closing and reuse is of significant practical importance for reducing maintenance costs, improving network reliability, and ensuring the continuity of communication services. Utility Model Content
[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a convenient secondary opening type optical cable junction box, which solves the technical problem that the structure with a large number of screws fixed in the prior art is prone to damage to the junction box body when it is opened for the second time, and may crack or deform after repeated disassembly, resulting in failure of the box seal.
[0007] According to one aspect, at least one embodiment of this disclosure provides a conveniently re-openable optical cable junction box, comprising:
[0008] A main box and a secondary box, wherein the secondary box is connected to the main box;
[0009] A pair of protruding strips and a fixing and tightening assembly are provided, wherein the protruding strips are all provided at the bottom of the main box, and the fixing and tightening assembly is provided on the main box and the auxiliary box;
[0010] The fixing and tightening assembly includes a pair of slots, which are respectively opened at opposite ends of the main box and the sub-box. Fixing brackets are fitted on both sides of the main box and the sub-box, and the fixing brackets are fitted into the slots.
[0011] As a further technical solution, movable columns are movably fitted inside both ends of the protrusion, and a transmission cavity is opened inside the movable column. A sliding block is movably fitted inside the transmission cavity, and a pull rod is rotatably connected to one end of the sliding block through a pin.
[0012] As a further technical solution, a spring is fitted on the outside of the pull rod, the spring is supported between the sliding block and the inner end face of the transmission cavity, and a connecting block is provided at one end of the pull rod, the connecting block being connected to the fixed sleeve.
[0013] As a further technical solution, a reinforcement component is also included. The reinforcement component is disposed outside the fixed sleeve. The reinforcement component includes a pair of fixed posts, both of which are located on one side of the sub-box. A pull strap is fitted between the pair of opposite fixed posts.
[0014] As a further technical solution, the inner surface of the slot is an inclined structural surface, and the two opposite surfaces inside the fixing sleeve are matched with the slot structure.
[0015] As a further technical solution, the cross-section of the fixed column has a T-shaped structure.
[0016] As a further technical solution, the pull strap adopts a stretchable rubber material structure.
[0017] As a further technical solution, the pull rod has a one-sided rotating structure at the connection point with the sliding block pin.
[0018] The beneficial effects of the embodiments disclosed herein are as follows:
[0019] 1. The beneficial effect of the fixed clamping assembly in this disclosure is that it uses an embedded structure of a slot and a fixed sleeve to replace the traditional screw fixing, enabling quick opening and closing of the main box and the auxiliary box without tools, greatly improving the efficiency of secondary opening. The elastic transmission structure composed of a spring, a pull rod, and a sliding block ensures that the fixed sleeve always maintains a tension force on the main and auxiliary boxes, ensuring a tight connection and avoiding thread wear caused by frequent screw disassembly. The single-sided rotating pull rod design can fix the position of the sleeve when opening, preventing rebound and facilitating maintenance. The inclined slot surface cooperates with the fixed sleeve to form a self-locking effect; the greater the tension, the tighter the fixation. At the same time, it avoids the risk of cracking of the housing due to concentrated force at the screw holes, extending the service life of the junction box.
[0020] 2. The beneficial effect of the reinforcement component in this disclosure is that the combination of the T-shaped fixing post and the retractable rubber strap can apply additional lateral tension to the fixing sleeve, dispersing the stress on the fixing sleeve and enhancing the overall structural stability of the junction box. The elastic properties of the rubber strap allow it to remain taut during long-term use, effectively coping with complex environments such as vibration and external impact, preventing the fixing sleeve from loosening, and improving the sealing and reliability of the junction box. This reinforcement method can be installed and adjusted without additional tools, and works in conjunction with the fixing and tightening component to form a dual fixing effect, ensuring both the convenience of secondary opening and meeting the requirements for robustness during long-term use. It is especially suitable for outdoor high-vibration scenarios, reducing maintenance costs and communication interruption risks caused by fixing structure failure. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0023] Figure 2 This is an isometric drawing of the present disclosure;
[0024] Figure 3 This is an isometric sectional view of the present disclosure;
[0025] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;
[0026] In the diagram: 1. Main box; 2. Sub-box; 3. Protruding strip; 4. Fixing and tightening assembly; 4-1. Slot; 4-2. Fixing bracket; 4-3. Movable column; 4-4. Transmission cavity; 4-5. Sliding block; 4-6. Pull rod; 4-7. Spring; 4-8. Connecting block; 5. Reinforcing assembly; 5-1. Fixing column; 5-2. Pull strap. Detailed Implementation
[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-4 As shown, it illustrates a conveniently re-openable optical cable junction box according to an embodiment of the present disclosure, comprising:
[0034] Main box 1 and secondary box 2, wherein the secondary box 2 is connected to the main box 1;
[0035] A pair of protruding strips 3 and a fixing and tightening assembly 4, wherein the protruding strips 3 are all disposed at the bottom of the main box 1, and the fixing and tightening assembly 4 is disposed on the main box 1 and the secondary box 2;
[0036] The fixed clamping assembly 4 includes a pair of slots 4-1, which are respectively opened at opposite ends of the main box 1 and the auxiliary box 2. Fixed sleeves 4-2 are fitted on both sides of the main box 1 and the auxiliary box 2. The fixed sleeves 4-2 are fitted into the slots 4-1. Movable columns 4-3 are movably fitted into both ends of the protrusion 3. A transmission cavity 4-4 is opened inside the movable column 4-3. A sliding block 4-5 is movably connected inside the transmission cavity. One end of the sliding block 4-5 is rotatably connected to a pull rod 4-6 through a pin. A spring 4-7 is fitted outside the pull rod 4-6. The spring 4-7 is supported between the sliding block 4-5 and the inner end face of the transmission cavity 4-4. A connecting block 4-8 is provided at one end of the pull rod 4-6. The connecting block 4-8 is connected to the fixed sleeve 4-2.
[0037] In some examples, during the assembly of the optical cable junction box, a fixing and tightening assembly 4 is designed to reliably fix the main box 1 and the auxiliary box 2. This assembly uses a pair of slots 4-1 at opposite ends of the main box 1 and the auxiliary box 2 as a positioning structure. The fixing sleeves 4-2 fitted on both sides of the main box 1 and the auxiliary box 2 can be embedded in the slots 4-1 to limit the movement of the main box 1 and the auxiliary box 2. The movable columns 4-3, which are movably fitted inside both ends of the protrusion 3, have a sliding block 4-5, a pull rod 4-6, and a spring 4-7 in their internal transmission cavity 4-4, forming an elastic transmission structure. The sliding block 4-5 is rotatably connected to the pull rod 4-6 through a pin. The spring 4-7 fitted outside the pull rod 4-6 is supported between the sliding block 4-5 and the inner end face of the transmission cavity 4-4, so that the pull rod 4-6 always has a tendency to move outward from the transmission cavity 4-4. The connecting block 4-8 at one end of the pull rod 4-6 is connected to the fixed sleeve 4-2. When the fixed sleeve 4-2 is fitted into the slot 4-1, the pull rod 4-6 pulls the fixed sleeve 4-2 under the elastic force of the spring 4-7, so that the fixed sleeve 4-2 fits tightly against the two sides of the main box 1 and the auxiliary box 2, thus achieving a firm fixation of the main and auxiliary boxes 2. When the pull rod 4-6 is fully pulled out, it can be rotated through the pin, so that it will not spring back and remains in the open state, which is convenient for waiting for the line adjustment.
[0038] Through the coordinated work of components such as slot 4-1, fixed sleeve 4-2, movable column 4-3, transmission cavity 4-4, sliding block 4-5, pull rod 4-6, spring 4-7 and connecting block 4-8, the fixed sleeve assembly 4 achieves the function of being sleeved and fixed on both sides of the main box 1 and the auxiliary box 2.
[0039] like Figures 1-4 As shown, this embodiment also includes a reinforcing component 5, which is disposed outside the fixed sleeve 4-2. The reinforcing component 5 includes a pair of fixing posts 5-1, both of which are located on one side of the sub-box 2. A pull strap 5-2 is fitted between the pair of opposite fixing posts 5-1.
[0040] In some examples, a reinforcement component 5 is designed to further enhance the fixing strength of the optical cable junction box. This component is based on a pair of fixing posts 5-1 located on one side of the sub-box 2. A pull strap 5-2 fitted between the pair of fixing posts 5-1 can bypass the outside of the fixing sleeve 4-2. By tightening the pull strap 5-2, the two fixing sleeves 4-2 are subjected to a pulling force towards the center, further fitting the main box 1 and the sub-box 2, and enhancing the tightness of the connection between the fixing sleeve 4-2 and the slot 4-1. This structural design can effectively disperse the external force on the fixing sleeve 4-2 and prevent the fixing sleeve 4-2 from loosening due to vibration or external force, which is especially suitable for scenarios requiring long-term stable connection. Through the coordinated work of components such as the fixing posts 5-1 and the pull strap 5-2, the reinforcement component 5 achieves the function of further tightening the fixing sleeve 4-2 and improving the firmness of the junction box.
[0041] For example, such as Figure 3 As shown, the inner surface of the slot 4-1 is an inclined structural surface, and the two opposite surfaces of the fixing sleeve 4-2 are matched with the structure of the slot 4-1.
[0042] In some examples, the greater the tension between the two fixed sleeves 4-2 due to the inclined structural surface, the better and tighter the fixing effect between the main box 1 and the secondary box 2.
[0043] For example, such as Figure 3 As shown, the cross-section of the fixed column 5-1 has a T-shaped structure.
[0044] In some examples, the T-shaped structure prevents the strap 5-2 from slipping off after it is inserted, thus maintaining the tension on the fixed post 5-1.
[0045] For example, such as Figure 3 As shown, the pull strap 5-2 is made of a stretchable rubber material.
[0046] In some examples, the rubber structure allows the tension between the two fixed posts 5-1 to be maintained through the rebound force.
[0047] For example, such as Figure 4 As shown, the pull rod 4-6 has a one-sided rotating structure at the pin connection with the sliding block 4-5.
[0048] In some examples, a single-sided rotating structure is used, allowing the pull rods 4-6 to rotate downwards by 90°. After rotation, they can be locked in the open position and will not spring back, facilitating operations such as connecting cables.
[0049] In actual use: Align the main box 1 and the auxiliary box 2 precisely along the preset mating surfaces, ensuring that the slots 4-1 at both ends of the main box and the auxiliary box are fully aligned. Push the fixing sleeve 4-2 smoothly with both hands, inserting it along the inclined inner surface of the slot 4-1. Utilize the guiding effect of the inclined surface to quickly position the fixing sleeve 4-2. At this time, the springs 4-7 inside the movable columns 4-3 at both ends of the protrusion 3 are in a naturally extended state. The sliding block 4-5 drives the pull rod 4-6 to apply tension, and the connecting block 4-8 tightly pulls the fixing sleeve 4-2 onto both sides of the main box 1 and the auxiliary box 2, ensuring a tight seal between the boxes and achieving initial fixation. To enhance the fixing strength, remove the rubber pull strap 5-2 and insert both ends into the T-shaped fixing column 5-1 on one side of the auxiliary box 2. After pulling it tight, utilize the elastic rebound of the pull strap 5-2 to further tighten the fixing sleeve 4-2 from the outside, forming a double-fastening effect. When a second opening is required, hold the lever 4-6 with one hand and pull it outward, causing it to rotate 90° outward around the pin connection with the sliding block 4-5 to the limit position. At this time, the spring 4-7 is compressed and stores energy, and the fixing sleeve 4-2 slides out of the slot 4-1 after losing tension, easily separating the main box 1 and the auxiliary box 2. No screwdriver or other tools are needed throughout the operation. The lever 4-6, which is limited by rotation on one side, can remain open, making it easy for operators to perform tasks such as adding optical cables or troubleshooting. The inclined mating structure of the slot 4-1 and the fixing sleeve 4-2 will automatically lock as the external tension increases during use, continuously improving the sealing reliability.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A convenient secondary-opening optical cable junction box, characterized in that, include: A main box (1) and a secondary box (2), wherein the secondary box (2) is connected to the main box (1); A pair of protruding strips (3) and a fixing and tightening assembly (4) are provided. The protruding strips (3) are both provided at the bottom of the main box (1), and the fixing and tightening assembly (4) is provided on the main box (1) and the secondary box (2). The fixing and tightening assembly (4) includes a pair of slots (4-1), which are respectively opened at opposite ends of the main box (1) and the sub-box (2). Fixing brackets (4-2) are fitted on both sides of the main box (1) and the sub-box (2), and the fixing brackets (4-2) are fitted in the slots (4-1).
2. The convenient secondary opening type optical cable junction box according to claim 1, characterized in that, Both ends of the protrusion (3) are movably fitted with movable columns (4-3). The movable columns (4-3) have a transmission cavity (4-4) inside. A sliding block (4-5) is movably fitted inside the transmission cavity. One end of the sliding block (4-5) is rotatably connected to a pull rod (4-6) via a pin.
3. The convenient secondary opening type optical cable junction box according to claim 2, characterized in that, A spring (4-7) is fitted on the outside of the pull rod (4-6). The spring (4-7) is supported between the sliding block (4-5) and the inner end face of the transmission cavity (4-4). A connecting block (4-8) is provided at one end of the pull rod (4-6). The connecting block (4-8) is connected to the fixed sleeve (4-2).
4. The convenient secondary opening type optical cable junction box according to claim 1, characterized in that, It also includes a reinforcing component (5), which is disposed outside the fixed sleeve (4-2). The reinforcing component (5) includes a pair of fixing posts (5-1), both of which are located on one side of the sub-box (2). A pull strap (5-2) is fitted between the pair of opposite fixing posts (5-1).
5. A convenient secondary opening type optical cable junction box according to claim 1, characterized in that, The inner surface of the slot (4-1) is an inclined structure surface, and the two opposite surfaces of the fixing sleeve (4-2) are matched with the structure of the slot (4-1).
6. The convenient secondary opening type optical cable junction box according to claim 4, characterized in that, The fixed column (5-1) has a T-shaped cross-section.
7. A convenient secondary opening type optical cable junction box according to claim 4, characterized in that, The pull strap (5-2) is made of a stretchable rubber material.
8. A convenient secondary opening type optical cable junction box according to claim 2, characterized in that, The pull rod (4-6) has a one-sided rotating structure at the pin connection with the sliding block (4-5).