Expansion type optical cable connector box
By designing a docking structure for expansion holes and guide holes, as well as a limiting structure, in the optical cable splice box, the problem of convenience in expanding optical cables is solved, and stable expansion and sealing of optical cables are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-20
AI Technical Summary
When existing fiber optic splice boxes need to be added to expand the fiber optic cable after installation, they become inconvenient to use and do not have an expansion effect, thus reducing convenience.
The box is designed with an upper cover and a lower frame, and has expansion holes and guide holes inside. The expansion and installation of optical cables are achieved through docking and limiting structures, and the sealing effect is ensured by sealing plates and elastic elements.
It enables convenient expansion and installation of fiber optic splice boxes, avoids cable tangling and improves sealing, thereby enhancing ease of use and stability.
Smart Images

Figure CN224020047U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of optical cable joint box, specifically is an expansion type optical cable joint box. BACKGROUND
[0002] The optical cable joint box is a box body for storing two or more optical cable joints, and is generally installed for outdoor use and is mostly made of black hard plastic. However, the existing optical cable joint box still has the following defects in use. The existing cable joint protection box needs to be fixed by a large number of bolts, which is inconvenient to install and increases the workload of the staff during installation, thereby reducing the installation efficiency.
[0003] The patent with the patent authorization announcement number CN115308857A discloses a kind of optical cable joint box convenient to install, and the protection soft shell is extruded spring, since spring has elasticity, spring is compressed and the elastic force generated by reaction plays the role of compression resistance, so that the whole has pressure resistance, thereby playing the protection role to optical cable joint box body, can effectively prevent and treat termite invasion, improve the security of optical cable and optical cable joint box, reduce optical cable failure, and improve the service life of optical cable joint;The inorganic fireproof slurry filled in the filling cavity arranged in the plate material of the upper shell and the lower shell of the optical cable joint box is filled, and the upper shell and the lower shell of the optical cable joint box have superior fireproof performance, simple structure, reasonable design, can quickly disassemble and fixedly install optical cable joint box body together, have good termite prevention function, improve the security of optical cable and optical cable joint box, reduce optical cable failure, and improve the service life of optical cable joint;
[0004] In the above-mentioned disclosed patent, the joint box in the patent solves the problem raised above, but the joint box still has the following problems. In the process of using the joint box, the upper and lower shells need to be connected, and the locking device is used for fixing. When the optical cable is expanded at this position after the installation of the optical cable in the joint box is completed, the number of joint boxes needs to be continuously added for the installation of new optical cables, which leads to the joint box not having the expansion effect, and reduces the convenience of using the joint box.
[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original joint box structure. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing an expansion type optical cable joint box to solve the problem raised in the above background technology that when the optical cable is expanded at this position after the installation of the optical cable in the joint box is completed, the number of joint boxes needs to be continuously added for the installation of new optical cables, which leads to the joint box not having the expansion effect, and reduces the convenience of using the joint box.
[0007] To achieve the above object, the utility model provides the following technical scheme: an extended optical cable joint box, including box body upper cover and box body lower frame arranged at the lower end of box body upper cover,
[0008] The outside of the box body upper cover and the box body lower frame is fixedly installed with a threaded mounting knob, and the inside of the box body upper cover and the box body lower frame is provided with a docking port, the inside of the box body upper cover is fixedly installed with a carding plate, and the inside of the box body lower frame is fixedly installed with an extension plate.
[0009] The inside of the box body lower frame is provided with a docking structure for controlling the extension of the optical cable, and the inside of the lower end of the box body lower frame is provided with a limiting structure for controlling the stable sealing of the optical cable.
[0010] Preferably, the docking structure comprises a guide hole and a fixed shaft, the guide hole is arranged in the inside of the extension plate, and the fixed shaft is fixedly installed with two groups in the inside of the box body lower frame.
[0011] Preferably, the outside of the box body lower frame is provided with an extension hole, and the center of the extension hole and the center of the guide hole are in the same straight line.
[0012] Preferably, the outside of the fixed shaft is rotatably installed with two groups of rotary connecting pieces, the two groups of rotary connecting pieces are rotatably installed with a docking plate therebetween, the outside of the docking plate is fixedly installed with an elastic sealing plug, and the elastic sealing plug is located in the inside of the extension hole.
[0013] Preferably, the limiting structure comprises a sliding piece, the sliding piece is slidably installed in the inside of the box body lower frame, the inside of the sliding piece is fixedly installed with a sliding rod, the sliding rod is slidably connected with the box body lower frame, and the upper end of the sliding piece is rotatably installed with a rotating plate.
[0014] Preferably, the upper end of the rotating plate is rotatably installed with a lower sealing plate, the outside of the lower sealing plate is fixedly installed with a lower rack, the outside of the lower rack is slidably installed with a square cylinder fixedly connected with the box body lower frame, the inside of the square cylinder is rotatably installed with a gap gear, the inside of the square cylinder is slidably installed with an upper rack, the gap gear is meshingly connected with the upper rack and the lower rack respectively, the outside of the upper rack is fixedly installed with an upper sealing plate, and the ends, where the upper sealing plate and the lower sealing plate are close to each other, are fixedly installed with an elastic arc piece.
[0015] Preferably, the inside of the box body lower frame is fixedly installed with a fixed block, the inside of the fixed block is slidably installed with a limiting block and a vertical rod, the vertical rod is fixedly connected with the limiting block, the outside of the vertical rod is sleeved with a supporting spring, the upper end of the vertical rod is fixedly installed with a pushing block, and the supporting spring is located in the inside of the fixed block.
[0016] Compared with the prior art, the utility model discloses the beneficial effects are: through being set up with the expansion hole in the inside of box body, can make the joint box can expand the quantity of optical cable butt joint, and the position of optical cable installation is sealed, can guarantee the sealing effect of optical cable expansion installation.
[0017] 1. Set with guide hole and expansion hole, can make guide hole and expansion hole limit the optical cable of expansion installation, avoid the condition that the optical cable appears winding in the inside of box body, convenient for the arrangement of the optical cable in the inside of box body simultaneously;
[0018] 2. Set with lower sealing plate and upper sealing plate, through the mutual approach of lower sealing plate and upper sealing plate, can make the elastic arc piece extrude the optical cable, guarantee the sealing effect of optical cable expansion hole position;
[0019] 3. Further, set with limiting block and sliding rod, can be through the movement of sliding rod and limit lower sealing plate and upper sealing plate, and push block can control limiting block movement through the movement of vertical rod, thereby through limiting block and position adjustment of sliding rod, guarantee the convenience of the joint box use. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the overhead perspective structure schematic diagram of the utility model;
[0021] Figure 2 It is the overhead perspective structure schematic diagram of the utility model;
[0022] Figure 3 It is the overhead perspective structure schematic diagram of the utility model box body upper cover;
[0023] Figure 4 It is the overhead perspective structure schematic diagram of the utility model box body lower frame;
[0024] Figure 5 It is the overhead perspective structure schematic diagram of the utility model rotation plate;
[0025] Figure 6 It is the overhead perspective structure schematic diagram of the utility model upper sealing plate;
[0026] Figure 7 It is the overhead perspective structure schematic diagram of the utility model elastic arc piece;
[0027] Figure 8 It is the overhead perspective structure schematic diagram of the utility model fixed block.
[0028] In the figure: 1, the box upper cover; 2, the box lower frame; 3, the threaded installation knob; 4, the docking interface; 5, the carding plate; 6, the expansion plate; 7, the guide hole; 8, the fixed shaft; 9, the docking plate; 10, the elastic sealing plug; 11, the expansion hole; 12, the rotary connecting piece; 13, the sliding piece; 14, the sliding rod; 15, the rotary plate; 16, the lower sealing plate; 17, the upper sealing plate; 18, the fixed block; 19, the limiting block; 20, the vertical rod; 21, the supporting spring; 22, the pushing block; 23, the square cylinder; 24, the gap gear; 25, the upper rack; 26, the lower rack; 27, the elastic arc piece. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0030] In specific embodiments, as shown in Figures 1-4 , the basic use process of the optical cable joint box is disclosed;
[0031] The box upper cover 1 and the box lower frame 2 arranged at the lower end of the box upper cover 1 are arranged; the threaded installation knob 3 is fixedly installed on the outer side of the box upper cover 1 and the box lower frame 2, and the docking interface 4 is arranged in the interior of the box upper cover 1 and the box lower frame 2; the carding plate 5 is fixedly installed in the interior of the box upper cover 1, and the expansion plate 6 is fixedly installed in the interior of the box lower frame 2.
[0032] When using the expansion type optical cable joint box, the threaded installation knob 3 is used to install the screw to seal and fix the box upper cover 1 and the box lower frame 2, and the docking interface 4 is used to limit the optical cable in the joint box, and the box can be used to protect the optical cable joint position, and when the optical cable needs to be expanded, the optical cable needs to be inserted through the expansion hole 11 and installed in the interior of the box, thereby improving the convenience of using the joint box.
[0033] In one of the specific embodiments, as shown in Figures 1-6 , the process of expanding the optical cable of the joint box is disclosed;
[0034] The lower frame 2 of the housing is provided with a docking structure for controlling the extension and installation of optical cables. The docking structure includes a guide hole 7 and a fixed shaft 8. The guide hole 7 is opened inside the expansion plate 6. Two sets of fixed shafts 8 are fixedly installed inside the lower frame 2 of the housing. An expansion hole 11 is opened on the outer side of the lower frame 2 of the housing. The center of the expansion hole 11 and the center of the guide hole 7 are in the same straight line. Two sets of rotating connectors 12 are rotatably installed on the outer side of the fixed shaft 8. A docking plate 9 is rotatably installed between the two sets of rotating connectors 12. An elastic sealing plug 10 is fixedly installed on the outer side of the docking plate 9. The elastic sealing plug 10 is located inside the expansion hole 11.
[0035] When using this extended fiber optic splice box, the top cover 1 of the box needs to be separated from the lower frame 2 of the box. At this time, the docking plate 9 is pulled to move and the elastic sealing plug 10 is separated from the expansion hole 11. Pushing the two sets of docking plates 9 will expose the two sets of expansion holes 11. At this time, the docking plate 9 drives the rotating connector 12 to rotate outside the fixed shaft 8. Then, the two sets of fiber optic splices can pass through the expansion hole 11 and the guide hole 7 and dock inside the box, thereby completing the process of extending the fiber optic cable inside the box, thus further improving the convenience of using the splice box.
[0036] Based on the above embodiments, such as Figures 1-8 The process by which the junction box seals and limits the optical cable is disclosed.
[0037] The lower end of the lower frame 2 of the housing is provided with a limiting structure for controlling the stable sealing of the optical cable. The limiting structure includes a sliding member 13, which is slidably installed inside the lower frame 2 of the housing. A sliding rod 14 is fixedly installed inside the sliding member 13 and is slidably connected to the lower frame 2 of the housing. A rotating plate 15 is rotatably installed at the upper end of the sliding member 13, and a lower sealing plate 16 is rotatably installed at the upper end of the rotating plate 15. A lower rack 26 is fixedly installed on the outer side of the lower sealing plate 16, and a square cylinder 23 fixedly connected to the lower frame 2 of the housing is slidably installed on the outer side of the lower rack 26. A clearance gear 24 is rotatably installed inside the square cylinder 23. An upper rack 25 is slidably installed inside the box 3, and a gap gear 24 is meshed with the upper rack 25 and the lower rack 26 respectively. An upper sealing plate 17 is fixedly installed on the outer side of the upper rack 25, and an elastic arc member 27 is fixedly installed at the end of the upper sealing plate 17 and the lower sealing plate 16 that are close to each other. A fixing block 18 is fixedly installed inside the lower frame 2 of the box, and a limit block 19 and a vertical rod 20 are slidably installed inside the fixing block 18. The vertical rod 20 is fixedly connected to the limit block 19. A support spring 21 is sleeved on the outer side of the vertical rod 20, and a push block 22 is fixedly installed at the upper end of the vertical rod 20. The support spring 21 is located inside the fixing block 18.
[0038] When the expansion type optical cable joint box is used, the elastic sealing plug 10 is separated from the expansion hole 11, and then the docking plate 9 is rotated, the docking plate 9 is in contact with the rotating plate 15 and extrudes the rotating plate 15, the rotating plate 15 is extruded and moves, and the sliding piece 13 and the sliding rod 14 slide in the inside of the lower frame 2 of the box body, at the same time, the rotating plate 15 pushes the lower sealing plate 16 to move upward, the lower sealing plate 16 moves and drives the lower rack 26 to move upward synchronously, at this time, the lower rack 26 drives the upper rack 25 to move downward through the gap gear 24 engaged with the lower rack 26, at this time, the lower sealing plate 16 and the upper sealing plate 17 are close to each other and limit the optical cable, at the same time, the upper and lower elastic arc pieces 27 are close to each other and extrude the optical cable, the elastic arc pieces 27 are deformed and seal between the optical cable and the expansion hole 11, and the sealing effect of the optical cable expansion installation is ensured.
[0039] And in the sliding process of the sliding rod 14, the sliding rod 14 is in contact with the limiting block 19 and pushes the limiting block 19 to move upward in the inside of the fixed block 18, at this time, the limiting block 19 extrudes the supporting spring 21 and makes the supporting spring 21 contract, at the same time, when the sliding rod 14 moves to the other side of the fixed block 18, the contracted supporting spring 21 expands and pushes the limiting block 19 to reset, so that the limiting block 19 limits the sliding rod 14, the stability of the two elastic arc pieces 27 extruding the optical cable is ensured, and the stability of the expansion use of the optical cable joint box is ensured, and the practicability of the whole is increased.
[0040] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.
[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An extended optical cable junction box, comprising a box cover (1) and a box lower frame (2) disposed at the lower end of the box cover (1); Its features are: The outer sides of the upper cover (1) and lower frame (2) of the box are fixedly installed with threaded mounting buttons (3), and the upper cover (1) and lower frame (2) of the box are provided with connecting interfaces (4). The upper cover (1) of the box is fixedly installed with a combing plate (5), and the lower frame (2) of the box is fixedly installed with an extension plate (6). The lower frame (2) of the box is provided with a docking structure for controlling the extension and installation of the optical cable, and the lower end of the lower frame (2) is provided with a limiting structure for controlling the stable sealing of the optical cable.
2. The extended optical cable junction box according to claim 1, characterized in that: The docking structure includes a guide hole (7) and a fixed shaft (8), with the guide hole (7) located inside the expansion plate (6) and two sets of fixed shafts (8) fixedly installed inside the lower frame (2) of the box.
3. An extended optical cable junction box according to claim 2, characterized in that: An expansion hole (11) is provided on the outer side of the lower frame (2) of the box body, and the center of the expansion hole (11) and the center of the guide hole (7) are in the same straight line.
4. An extended optical cable junction box according to claim 3, characterized in that: Two sets of rotating connectors (12) are rotatably mounted on the outer side of the fixed shaft (8), and a mating plate (9) is rotatably mounted between the two sets of rotating connectors (12). An elastic sealing plug (10) is fixedly mounted on the outer side of the mating plate (9), and the elastic sealing plug (10) is located inside the expansion hole (11).
5. An extended optical cable junction box according to claim 1, characterized in that: The limiting structure includes a sliding member (13), which is slidably installed inside the lower frame (2) of the box body. A sliding rod (14) is fixedly installed inside the sliding member (13), and the sliding rod (14) is slidably connected to the lower frame (2) of the box body. A rotating plate (15) is rotatably installed on the upper end of the sliding member (13).
6. An extended optical cable junction box according to claim 5, characterized in that: The upper end of the rotating plate (15) is rotatably mounted with a lower sealing plate (16), and a lower rack (26) is fixedly mounted on the outer side of the lower sealing plate (16). A square tube (23) fixedly connected to the lower frame (2) of the box body is slidably mounted on the outer side of the lower rack (26). A gap gear (24) is rotatably mounted inside the square tube (23), and an upper rack (25) is slidably mounted inside the square tube (23). The gap gear (24) meshes with the upper rack (25) and the lower rack (26) respectively. An upper sealing plate (17) is fixedly mounted on the outer side of the upper rack (25), and an elastic arc member (27) is fixedly mounted at one end of the upper sealing plate (17) and the lower sealing plate (16) that are close to each other.
7. An extended optical cable junction box according to claim 6, characterized in that: A fixing block (18) is fixedly installed inside the lower frame (2) of the box body, and a limit block (19) and a vertical rod (20) are slidably installed inside the fixing block (18). The vertical rod (20) is fixedly connected to the limit block (19). A support spring (21) is sleeved on the outside of the vertical rod (20), and a push block (22) is fixedly installed at the upper end of the vertical rod (20). The support spring (21) is located inside the fixing block (18).
Citation Information
Patent Citations
Optical cable connector box convenient to install
CN115308857A