A fiber optic cable downlead protection box

Abstract

This utility model discloses a protective box for optical cable downleaders, comprising a first half-bottle and a second half-bottle, which are connected to each other. A first sealing component is provided between the upper openings of the first and second half-bottles, a second sealing component is provided between the walls of the first and second half-bottles, and a third sealing component is provided between the lower openings of the first and second half-bottles. A first semi-circular plate is connected to the upper opening of the first half-bottle, and a second semi-circular plate is connected to the upper opening of the second half-bottle. Semi-circular grooves are respectively formed on the inner sides of the first and second semi-circular plates. The first sealing component includes a sealing circular plate. The purpose of this utility model is to overcome the shortcomings of existing optical cable downleader protective boxes and provide an effective protection for optical cables.

Description

Technical Field

[0001] This utility model relates to a protective box for optical cable downleaders. Background Technology

[0002] The incoming optical fiber cable must be protected by a galvanized steel pipe. The upper end of the steel pipe must be treated with special waterproof (freezing) measures to prevent water from entering the pipe and freezing due to improper sealing of the incoming cable, which could cause the optical fiber to break due to stress.

[0003] Sealing adhesives are widely used in construction, but they have the following disadvantages, including durability: Adhesives are easily affected by external environmental factors, such as wind swaying, the junction box itself sagging, and mechanical pulling, which may cause gaps to form at the seal, thus affecting their durability. Especially under extreme climatic conditions, the performance of the adhesive may be unstable, leading to a decrease in moisture-proof effect.

[0004] Application and maintenance challenges: Applying adhesives typically requires a high level of technical skill to ensure proper application and curing. Incorrect application methods can lead to poor sealing. Post-application maintenance is also difficult; replacement and repair costs are high once the adhesive fails or is damaged.

[0005] Waterproof and freeze-proof performance: The waterproof performance of adhesives may not be as stable and reliable as that of sealing boxes. Especially in low-temperature environments, adhesives may fail due to freezing. Adhesives offer relatively weak protection for fiber optic connectors, making them susceptible to moisture intrusion, which can lead to the peeling of the fiber coating and changes in the physical structure of the fiber core.

[0006] Economic considerations: While adhesives have low initial costs, their long-term use and maintenance costs are high. Furthermore, the use of adhesives may also involve environmental and waste disposal issues.

[0007] Therefore, a fiber optic cable downlead protection box is proposed to address the above problems. Utility Model Content

[0008] The purpose of this utility model is to overcome the existing defects and provide a fiber optic cable downlead protection box that can effectively protect the fiber optic cable.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a protective box for optical cable downleads, comprising a first half-bottle and a second half-bottle, the first half-bottle and the second half-bottle being connected to each other, a first sealing component being provided between the upper openings of the first half-bottle and the second half-bottle, a second sealing component being provided between the walls of the first half-bottle and the second half-bottle, and a third sealing component being provided between the lower openings of the first half-bottle and the second half-bottle.

[0010] Preferably, a first semicircular plate is connected to the upper opening of the first half-bottle body, and a second semicircular plate is connected to the upper opening of the second half-bottle body. Semicircular grooves are respectively provided on the inner sides of the first and second semicircular plates. The first sealing assembly includes a sealing circular plate, which is disposed within the semi-circular groove formed in the first and second semi-circular plates.

[0011] Preferably, a first sealing groove is formed on one side of the first half-bottle body, and a first limiting protrusion is provided on the other side; a second sealing groove is formed on one side of the second half-bottle body, and a second limiting protrusion is provided on the other side, wherein the opposite surface of the first sealing groove is the second limiting protrusion, and the opposite surface of the first limiting protrusion is the second sealing groove. The second sealing assembly includes two linear sealing strips, which are respectively disposed between the first sealing groove and the second limiting protrusion, and between the first limiting protrusion and the second sealing groove.

[0012] Preferably, the lower openings of the first half-bottle and the second half-bottle are respectively provided with semi-circular sealing grooves; the third sealing component includes a sealing ring, which is disposed in the two semi-circular sealing grooves.

[0013] Preferably, the first half-bottle and the second half-bottle are provided with semi-circular through holes for optical cables to pass through.

[0014] Preferably, the first positioning pin is connected to one side of the interior of the first half-bottle and the first positioning hole is connected to the other side; the second positioning pin is connected to one side of the interior of the second half-bottle and the second positioning hole is connected to the other side, the first positioning pin is inserted into the second positioning hole, and the second positioning pin is inserted into the first positioning hole.

[0015] Preferably, multiple first fixing rings are connected at equal intervals on both outer walls of the first half-bottle body, and multiple second fixing rings are connected at equal intervals on both outer walls of the second half-bottle body. The first fixing rings and the second fixing rings are connected by bolts to realize the connection between the first half-bottle body and the second half-bottle body.

[0016] Preferably, the outer wall of the first half-bottle is provided with an expansion mounting box, and the expansion mounting box is provided with a communication positioning device and a temperature and humidity sensing unit.

[0017] Compared with existing technologies, the beneficial effects of this utility model are: This optical cable downleader protection box completely isolates the connector from the external environment, eliminating the possibility of moisture condensation and improving the electrical performance of the optical cable and connector. It effectively reduces vibrations caused by wind loads or vibration forces to maintain the torque of the connector and passes rigorous waterproof testing. It has strong weather resistance, is resistant to ultraviolet radiation, impact resistant, and provides shock absorption. It is adaptable to various harsh environments (-30℃~+135℃) and is robust and durable.

[0018] It is reusable, which greatly reduces maintenance costs. Its reasonable design and simple operation can reduce economic losses caused by poor joint sealing due to human error.

[0019] The simple loading and unloading process greatly reduces the time operators spend working at heights, making installation and dismantling work safer.

[0020] The gaps can be filled with elastic sealing components to ensure no water leakage even after long-term use, thus effectively protecting the optical cable. This effectively solves the problem of using waterproof sealing mud to fill gaps that have been weathered over time, allowing water to leak into the galvanized steel pipe and freeze, thereby damaging the optical cable. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is an isometric view of the optical cable downlead protection box of this utility model; Figure 2 This is an isometric view of the optical cable downlead protection box of this utility model from another perspective; Figure 3 This is a detailed diagram showing the connection of the linear sealing strip of this utility model; Figure 4 This is a detailed internal view of the first half of the bottle body of this utility model; Figure 5 This is a detailed internal view of the second half of the bottle body of this utility model.

[0022] In the diagram: 1. First half-bottle body; 2. Second half-bottle body; 3. First semi-circular plate; 4. Second semi-circular plate; 5. Semi-circular groove; 6. Sealing circular plate; 7. First sealing groove; 8. First limiting protrusion; 9. Second sealing groove; 10. Second limiting protrusion; 11. Linear sealing strip; 12. Semi-circular sealing groove; 13. Sealing ring; 14. Semi-circular through hole; 15. First positioning pin; 16. First positioning insertion hole; 17. Second positioning pin; 18. Second positioning insertion hole; 19. First fixing ring; 20. Second fixing ring; 21. Bolt; 22. Extension mounting box. Detailed Implementation

[0023] 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.

[0024] like Figure 1-5 As shown, a protective box for optical cable downleads includes a first half-bottle 1 and a second half-bottle 2, which are connected to each other. A first sealing component is provided between the upper openings of the first half-bottle 1 and the second half-bottle 2, and a second sealing component is provided between the walls of the first half-bottle 1 and the second half-bottle 2. A third sealing component is provided between the lower openings of the first half-bottle 1 and the second half-bottle 2.

[0025] Specifically, the first half-bottle 1 and the second half-bottle 2 are made of imported high-quality, high-strength, ultra-high viscosity polycarbonate (PC) reinforced engineering plastic. The molded product effectively prevents material aging caused by cold, heat, oxygen, and ultraviolet radiation in nature, and possesses excellent mechanical strength. The reinforced shell design makes it sturdy, durable, high-performing, and long-lasting.

[0026] Specifically, the housing seal uses elastomeric components (first sealing component, second sealing component and third sealing component), which can reliably seal the optical cable during use, preventing corrosion from external pollutants such as rainwater, moisture, salt spray, and dust. It can be used in the field for more than 10 years and still maintain excellent moisture-proof and insulation performance, and has a strong ability to resist environmental changes.

[0027] Specifically, regarding speed: it adopts a split-type structure design with double-row screws for easy installation and disassembly. Installation is simple, requiring no special training; anyone can easily complete the operation.

[0028] Specifically, a first semicircular plate 3 is connected to the upper opening of the first half-bottle 1, and a second semicircular plate 4 is connected to the upper opening of the second half-bottle 2. Semicircular grooves 5 are respectively formed on the inner sides of the first and second semicircular plates 3 and 4. The first sealing assembly includes a sealing circular plate 6, which is disposed within the semicircular grooves 5 formed in the first and second semicircular plates 3 and 4. This achieves a seal at the upper openings of the first and second half-bottles 1 and 2. Semicircular through holes 14 for optical cables to pass through are formed on the first and second half-bottles 1 and 2. The optical cable passes through the semicircular through holes 14, through the sealing circular plate 6, and then exits from the lower openings of the first and second half-bottles 1 and 2.

[0029] Specifically, to prevent discrepancies between the inner diameter of the protective sleeve and the outer diameter of the steel pipe and optical cable, the joint gaps should be sealed with thickened, waterproof, engineering-grade insulating tape when necessary. This provides quick and easy insulation, repair, and sealing for targets requiring waterproofing.

[0030] Specifically, it exhibits excellent conformability to irregular surfaces, good compatibility with various cables, and a wide operating temperature range (-30℃ to 85℃). It is gray in color and possesses excellent weather resistance and waterproof sealing properties.

[0031] Specifically, a first sealing groove 7 is formed on one side of the first half-bottle 1, and a first limiting protrusion 8 is provided on the other side; a second sealing groove 9 is formed on one side of the second half-bottle 2, and a second limiting protrusion 10 is provided on the other side. The opposite surface of the first sealing groove 7 is the second limiting protrusion 10, and the opposite surface of the first limiting protrusion 8 is the second sealing groove 9; the second sealing assembly includes two linear sealing strips 11, which are respectively disposed between the first sealing groove 7 and the second limiting protrusion 10, and between the first limiting protrusion 8 and the second sealing groove 9. This achieves a tight connection of the linear sealing strips 11.

[0032] Specifically, the lower openings of the first half-bottle 1 and the second half-bottle 2 are respectively provided with semi-circular sealing grooves 12; the third sealing assembly includes a sealing ring 13, which is disposed within the two semi-circular sealing grooves 12. This is used to seal the optical cable passing through the lower openings of the first half-bottle 1 and the second half-bottle 2.

[0033] Specifically, the first half-bottle 1 has a first positioning pin 15 connected to one side of its interior and a first positioning hole 16 connected to the other side; the second half-bottle 2 has a second positioning pin 17 connected to one side of its interior and a second positioning hole 18 connected to the other side. The first positioning pin 15 is inserted into the second positioning hole 18, and the second positioning pin 17 is inserted into the first positioning hole 16. This achieves the docking and limiting connection between the first half-bottle 1 and the second half-bottle 2.

[0034] Specifically, multiple first fixing rings 19 are connected at equal intervals on both outer walls of the first half-bottle 1, and multiple second fixing rings 20 are connected at equal intervals on both outer walls of the second half-bottle 2. The first fixing rings 19 and the second fixing rings 20 are connected by bolts 21 to realize the connection between the first half-bottle 1 and the second half-bottle 2.

[0035] Specifically, the outer wall of the first half-bottle 1 is equipped with an expansion mounting box 22, which houses a communication and positioning device and a temperature and humidity sensing unit. The communication and positioning device features 4G communication and GPS positioning capabilities. The module receives sensor data via a serial port and sends temperature, humidity, and coordinate data to a user-designated server platform at set time intervals. Users can receive data through their own deployed platform and, based on a set humidity alarm threshold, indirectly monitor and determine whether the waterproof sealing function inside the protective box has failed by detecting humidity. The system is powered by a solar panel and a battery, requiring no external power supply.

[0036] This fiber optic cable drop-out protection box completely isolates the connector from the external environment, eliminating the possibility of moisture condensation and improving the electrical performance of the fiber optic cable and connector. It effectively reduces vibrations caused by wind loads or vibration forces to maintain connector torque and has passed rigorous waterproof testing. It is highly weather-resistant, resistant to UV radiation, impact-resistant, and provides shock absorption. It is adaptable to various harsh environments (-30℃ to +135℃) and is robust and durable.

[0037] It is reusable, which greatly reduces maintenance costs. Its reasonable design and simple operation can reduce economic losses caused by poor joint sealing due to human error.

[0038] The simple loading and unloading process greatly reduces the time operators spend working at heights, making installation and dismantling work safer.

[0039] The gaps can be filled with elastic sealing components to ensure no water leakage even after long-term use, thus effectively protecting the optical cable. This effectively solves the problem of using waterproof sealing mud to fill gaps that have been weathered over time, allowing water to leak into the galvanized steel pipe and freeze, thereby damaging the optical cable.

[0040] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective box for optical cable downleaders, characterized in that, It includes a first half-bottle (1) and a second half-bottle (2), which are connected to each other. A first sealing component is provided between the upper openings of the first half-bottle (1) and the second half-bottle (2), and a second sealing component is provided between the bottle walls of the first half-bottle (1) and the second half-bottle (2). A third sealing component is provided between the lower openings of the first half-bottle (1) and the second half-bottle (2).

2. The optical cable downlead protection box according to claim 1, characterized in that, The first half-bottle (1) is connected to the upper opening of the first semi-circular plate (3), and the second half-bottle (2) is connected to the upper opening of the second semi-circular plate (4). The inner sides of the first semi-circular plate (3) and the second semi-circular plate (4) are respectively provided with semi-circular grooves (5). The first sealing assembly includes a sealing circular plate (6), which is disposed in the semi-circular groove (5) formed in the first semi-circular plate (3) and the second semi-circular plate (4).

3. The optical cable downlead protection box according to claim 1, characterized in that, The first half-bottle (1) has a first sealing groove (7) on one side of its bottle wall and a first limiting protrusion (8) on the other side; the second half-bottle (2) has a second sealing groove (9) on one side of its bottle wall and a second limiting protrusion (10) on the other side, the opposite side of the first sealing groove (7) is the second limiting protrusion (10), and the opposite side of the first limiting protrusion (8) is the second sealing groove (9). The second sealing assembly includes two linear sealing strips (11), which are respectively disposed between the first sealing groove (7) and the second limiting protrusion (10), and between the first limiting protrusion (8) and the second sealing groove (9).

4. The optical cable downlead protection box according to claim 1, characterized in that, The lower openings of the first half-bottle (1) and the second half-bottle (2) are respectively provided with semi-circular sealing grooves (12); the third sealing component includes a sealing ring (13), which is disposed in the two semi-circular sealing grooves (12).

5. The optical cable downlead protection box according to claim 2, characterized in that, The first half-bottle (1) and the second half-bottle (2) are provided with semi-circular through holes (14) for optical cables to pass through.

6. The optical cable downlead protection box according to claim 1, characterized in that, The first half-bottle (1) is connected to a first positioning pin (15) on one side and to a first positioning hole (16) on the other side; the second half-bottle (2) is connected to a second positioning pin (17) on one side and to a second positioning hole (18) on the other side, the first positioning pin (15) is inserted into the second positioning hole (18), and the second positioning pin (17) is inserted into the first positioning hole (16).

7. The optical cable downlead protection box according to claim 1, characterized in that, Multiple first fixing rings (19) are connected at equal intervals on both sides of the outer wall of the first half bottle (1), and multiple second fixing rings (20) are connected at equal intervals on both sides of the outer wall of the second half bottle (2). The first fixing rings (19) and the second fixing rings (20) are connected by bolts (21) to realize the connection between the first half bottle (1) and the second half bottle (2).

8. The optical cable downlead protection box according to claim 1, characterized in that, The outer wall of the first half-bottle (1) is provided with an extended mounting box (22), and the extended mounting box (22) is provided with a communication positioning device and a temperature and humidity sensing unit device.

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