Multi-mode double-core optical fiber cable with novel structure

Abstract

The utility model provides a multimode double-core optical fiber cable with a novel structure, which comprises an outer sheath, an inner sheath is arranged in the outer sheath, a double-core optical fiber is arranged in the inner sheath, the outer surface of the double-core optical fiber is wrapped with fiber reinforced yarns, a water-blocking tape is arranged between the inner sheath and the double-core optical fiber, and the outer surface of the double-core optical fiber is wrapped with fiber reinforced yarns. The outer sheath is inserted into the conical sleeve, the conical sleeve is connected with the connecting sleeve, and the connecting sleeve is connected with the optical fiber plugging module. Through the positioning groove and the pin inner inclined part arranged in the plugging ring of the optical fiber plugging module, accurate plugging of a plug can be realized, the connection efficiency and accuracy can be improved, and through the adoption of the multi-mode double-core optical fiber, efficient optical signal transmission can be realized, and the accuracy and stability of data transmission can be ensured. Through the fiber reinforced yarn wrapping the outer surface of the double-core optical fiber, the stretching resistance and the bending resistance of the optical fiber are effectively improved, the optical fiber damage caused by external force is reduced, and the service life of the optical cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of optical cables, and in particular to a multi-mode dual-core optical fiber cable with a novel structure. Background Art

[0002] In the field of optical communications, optical fiber cables are important carriers for optical signal transmission. However, existing optical fiber cable technology has some problems in practical applications.

[0003] Traditional fiber optic cables have certain limitations in terms of signal transmission quality. Due to the structural and performance limitations of optical fibers, the efficiency of optical signal transmission is low, and the accuracy and stability of data transmission need to be improved.

[0004] In terms of mechanical strength, existing optical fiber cables lack the ability to resist stretching and bending. During use, they are easily damaged by external forces, which affects the continuity and reliability of signal transmission and shortens the service life of the optical cable.

[0005] Waterproof performance is also a weak link in existing technologies. When the optical cable is in a humid or water-rich environment, moisture can easily penetrate into the optical fiber, causing interference with optical signal transmission or even signal interruption.

[0006] Furthermore, existing methods for connecting optical cables to external devices can be unstable and prone to loosening, which not only affects signal transmission quality but also leads to connection failures, increasing maintenance costs and work difficulty.

[0007] At the same time, existing fiber optic plug-in modules also lack accuracy and convenience in positioning and connection. The plug insertion process is not smooth, and positioning is not precise, resulting in low connection efficiency and affecting the overall performance of the optical communication system. Therefore, we have improved this by proposing a new multi-mode dual-core fiber optic cable structure. Utility Model Content

[0008] The purpose of the present invention is to address the problems raised by the existing background technology. In order to achieve the above-mentioned purpose of the utility model, the present invention provides the following technical solutions: a multi-mode dual-core optical fiber cable with a novel structure, comprising an outer sheath, an inner sheath disposed within the outer sheath, a dual-core optical fiber disposed within the inner sheath, the outer surface of the dual-core optical fiber being wrapped with fiber reinforcement yarn, a water-blocking tape disposed between the inner sheath and the dual-core optical fiber, the outer sheath being inserted into a tapered sleeve, the tapered sleeve being connected to a connecting sleeve, and the connecting sleeve being connected to an optical fiber plug-in module.

[0009] As a preferred technical solution of the present invention, the optical fiber plug-in module is provided with a plug-in ring, the outer surface of the plug-in ring is provided with a plug-in buckle, and the inner surface of the plug-in ring is provided with a plug-in hole.

[0010] As a preferred technical solution of the present invention, an optical fiber connection pin is provided in the plug hole, and a pin sheath is provided at the bottom of the optical fiber connection pin.

[0011] As a preferred technical solution of the present invention, the water-blocking tape is an expansion-type water-blocking tape.

[0012] As a preferred technical solution of the present invention, a positioning groove is provided inside the plug-in ring, and the positioning groove has a depth of 0.5 mm and a width of 0.8 mm.

[0013] As a preferred technical solution of the present invention, an inner bevel portion of the pin is provided at the edge of the positioning groove, and the inclination angle of the inner bevel portion of the pin is 30°.

[0014] As a preferred technical solution of the present invention, a tightening cap is provided on the outer surface of the optical fiber plug-in module.

[0015] As a preferred technical solution of the present invention, the outer surface of the tightening cap is provided with a non-slip rubber layer.

[0016] Compared with the existing technology, the beneficial effects of the present invention are as follows: In the solution of the present invention: 1. Improving the quality of signal transmission: adopting multi-mode dual-core optical fiber, efficient optical signal transmission can be achieved, ensuring the accuracy and stability of data transmission.

[0017] 2. Enhanced mechanical strength: The fiber-reinforced yarn wrapped around the outer surface of the dual-core optical fiber effectively improves the optical fiber's resistance to stretching and bending, reduces optical fiber damage caused by external forces, and extends the service life of the optical cable.

[0018] 3. Good waterproof performance: The expandable water-blocking tape installed between the inner sheath and the dual-core optical fiber can effectively prevent moisture penetration after swelling when exposed to water, protecting the optical fiber from the influence of water, ensuring that the optical signal is transmitted in a dry environment, and improving the reliability of signal transmission.

[0019] 4. Stable connection performance: The outer sheath is connected to the optical fiber plug-in module through a tapered sleeve and a connecting sleeve. This connection method makes the connection between the optical cable and the external device more secure and reduces the signal interruption problem caused by loose connection.

[0020] 5. Precise Positioning and Convenient Connection: The positioning grooves and beveled inner portion of the connector pins within the connector ring facilitate accurate plug insertion, improving connection efficiency and accuracy. Furthermore, the connector buckles on the outer surface of the connector ring and the optical fiber connector pins facilitate connections between optical cables and external devices.

[0021] 6. Enhanced operational safety: The tightening cap on the outer surface of the optical fiber plug-in module and the anti-slip rubber layer on the outer surface of the tightening cap make it easier for operators to perform tightening operations, while increasing operational safety and avoiding operational errors caused by hand slippage.

[0022] 7. Strong adaptability: This new structure of multi-mode dual-core optical fiber cable has good comprehensive performance and can adapt to various complex environments and application scenarios, providing strong guarantee for the stable operation of optical communication systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure provided by the utility model;

[0024] Figure 2 A schematic diagram of the cross-sectional structure of the outer sheath provided by the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the optical fiber plug-in module provided by the utility model;

[0026] Figure 4 This is a schematic diagram of the optical fiber connection pin structure provided by the utility model;

[0027] Figure 5 This is a schematic diagram of the positioning groove structure provided by the utility model.

[0028] Indicated in the figure:

[0029] 1. Outer sheath; 2. Inner sheath; 3. Dual-core optical fiber; 4. Water-blocking tape; 5. Fiber-reinforced yarn; 6. Conical sleeve; 7. Connecting sleeve; 8. Optical fiber plug-in module; 801. Plug-in ring; 802. Plug-in buckle; 803. Plug-in hole; 9. Optical fiber connecting pin; 901. Positioning groove; 902. Inner bevel of the pin; 903. Pin sheath; 10. Tightening cap; 101. Anti-slip rubber layer. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0031] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] Example 1: Please refer to Figure 1-Figure 5 A multimode, dual-core optical fiber cable with a novel structure includes an outer sheath 1, an inner sheath 2 disposed within the outer sheath 1, a dual-core optical fiber 3 disposed within the inner sheath 2, the outer surface of the dual-core optical fiber 3 being wrapped with fiber-reinforced yarn 5, a water-blocking tape 4 disposed between the inner sheath 2 and the dual-core optical fiber 3, the outer sheath 1 being inserted into a tapered sleeve 6, which is connected to a connecting sleeve 7, which is connected to an optical fiber plug-in module 8. The optical fiber plug-in module 8 is provided with a plug-in ring 801, the outer surface of which is provided with a plug-in buckle 802, and the inner surface of which is provided with a plug-in hole 803.

[0033] The optical fiber connection pin 9 is installed in the insertion hole 803, and the bottom of the optical fiber connection pin 9 is provided with a pin sheath 903. The water blocking tape 4 is an expandable water blocking tape 4. The interior of the plug ring 801 is provided with a positioning groove 901, which is 0.5mm deep and 0.8mm wide.

[0034] The edge of the positioning groove 901 is provided with an inner bevel portion 902 of the pin, and the bevel portion 902 has an inclination angle of 30 degrees. The outer surface of the optical fiber plug-in module 8 is provided with a tightening cap 10. The outer surface of the tightening cap 10 is provided with an anti-slip rubber layer 101.

[0035] The working principle of a multimode duplex fiber 3 cable: Outer sheath 1 and inner sheath 2: Outer sheath 1 provides external protection for the entire cable, preventing damage to the internal structure of the cable from the external environment. Inner sheath 2, located inside outer sheath 1, further protects the duplex fiber 3 inside.

[0036] Dual-core optical fiber 3 and fiber-reinforced yarn 5: Dual-core optical fiber 3 is the core component for optical signal transmission. Fiber-reinforced yarn 5 wraps around the outer surface of dual-core optical fiber 3, enhancing its mechanical strength, improving its tensile and bending resistance, and helping to protect the fiber from damage during use.

[0037] Water-blocking tape 4: An expandable water-blocking tape 4 is located between the inner sheath 2 and the duplex optical fiber 3. When moisture intrudes into the optical cable, the water-blocking tape 4 expands, preventing further penetration and protecting the optical fiber from water, thus ensuring the transmission quality of the optical signal.

[0038] Connection between outer sheath 1, tapered sleeve 6, connecting sleeve 7, and optical fiber plug-in module 8: Outer sheath 1 is inserted into tapered sleeve 6, which is connected to connecting sleeve 7, which is in turn connected to optical fiber plug-in module 8. This connection method enables the optical cable to connect to external equipment, enabling the transmission and reception of optical signals.

[0039] Fiber optic plug-in module 8:

[0040] Plug ring 801: The outer surface of the plug ring 801 is provided with a plug buckle 802 for connecting and fixing with an external device. The inner surface of the plug ring 801 is provided with a plug hole 803 for inserting the optical fiber connection pin 9.

[0041] Fiber optic connection pin 9: The fiber optic connection pin 9 is inserted into the insertion hole 803, and the pin sheath 903 at the bottom plays a protective role. The fiber optic connection pin 9 is used to connect the optical cable to the external device.

[0042] Positioning groove 901: The positioning groove 901 provided inside the plug ring 801 has a depth of 0.5 mm and a width of 0.8 mm and is used to position the optical fiber connection pin 9 to ensure the accuracy and stability of the connection.

[0043] Pin inner bevel 902: A pin inner bevel 902 with an inclination angle of 30° is provided at the edge of the positioning groove 901, which helps to guide the optical fiber connection pin 9 to be inserted into the plug hole 803, thereby improving the convenience of connection.

[0044] Tightening cap 10: The outer surface of the optical fiber plug module 8 is provided with a tightening cap 10. By rotating the tightening cap 10, the connection between the optical cable and the external device is tightened, and the connection reliability is enhanced. The outer surface of the tightening cap 10 is provided with a non-slip rubber layer 101 to increase friction and facilitate operation of the tightening cap 10.

[0045] In summary, this new type of multi-mode dual-core optical fiber cable achieves stable transmission of optical signals through the synergistic effect of various parts, while also having good mechanical strength, waterproof performance and connection reliability.

[0046] Specific working process of multi-mode dual-core optical fiber cable:

[0047] 1. Optical signal transmission: Dual-core optical fiber 3 serves as the core of optical signal transmission, converting electrical signals into optical signals at the sending end and transmitting them through optical fibers.

[0048] 2. Internal protection: The fiber reinforcement yarn 5 is wrapped around the outer surface of the dual-core optical fiber 3 to enhance the mechanical strength of the optical fiber and prevent it from being damaged by stretching or bending during use.

[0049] The inner sheath 2 is arranged inside the outer sheath 1 to provide further protection for the dual-core optical fiber 3 and reduce the impact of external factors on the optical fiber.

[0050] The water-blocking tape 4 is made of expandable material and is located between the inner sheath 2 and the dual-core optical fiber 3. When the optical cable encounters water intrusion, the water-blocking tape 4 expands with water, preventing the water from further penetrating into the optical fiber part, thus ensuring the transmission quality of the optical signal.

[0051] 3. External connection: The outer sheath 1 is inserted into the conical sleeve 6 to achieve preliminary fixation and connection.

[0052] The tapered sleeve 6 is connected to the connecting sleeve 7 to connect the optical cable to the optical fiber plug-in module 8.

[0053] 4. Connection of the optical fiber plug-in module 8: The plug-in buckle 802 on the outer surface of the plug-in ring 801 of the optical fiber plug-in module 8 is used for docking with external equipment.

[0054] The plug of the external device is inserted into the plug hole 803 of the plug ring 801, and the optical fiber connecting pin 9 in the plug hole 803 contacts the plug to realize the transmission of the optical signal.

[0055] The positioning groove 901 inside the connector ring 801 is used to position the plug and ensure accurate connection. The inner bevel 902 of the pin at the edge of the positioning groove 901 has a 30° angle, which helps guide the plug into the socket 803. The pin sheath 903 at the bottom of the optical fiber connection pin 9 protects the pin.

[0056] 5. Tighten the connection: After connecting the plug to the connector ring 801, tighten the cap 10 on the outer surface of the fiber optic connector module 8 to tighten and secure the connection between the optical cable and the external device. The non-slip rubber layer 101 on the outer surface of the cap 10 increases friction, facilitating the tightening operation and ensuring a reliable connection.

[0057] Example 2: A multi-mode dual-core optical fiber cable with a novel structure, the outer sheath 1 is made of black polyethylene material with good wear resistance and corrosion resistance. The inner sheath 2 is made of white polyvinyl chloride material to distinguish the inner and outer sheaths 1. The dual-core optical fiber 3 adopts a standard multi-mode optical fiber, and the fiber reinforcement yarn 5 is tightly wrapped around the outer surface of the dual-core optical fiber 3 to provide additional strength protection. The water-blocking tape 4 effectively prevents moisture from entering the interior of the optical cable. The conical sleeve 6 and the connecting sleeve 7 are made of sturdy metal material to ensure the stability of the connection. The plug buckle 802 on the plug ring 801 of the optical fiber plug module 8 is designed for easy plugging and unplugging, and the optical fiber connection pin 9 in the plug hole 803 is precisely connected to the dual-core optical fiber 3. The pin sheath 903 protects the optical fiber connection pin 9 from damage, and the positioning groove 901 and the inner bevel 902 of the pin ensure the accurate insertion of the pin. The anti-slip rubber layer 101 on the tightening cap 10 increases the convenience and safety of operation. The multi-mode dual-core optical fiber 3 cable in this embodiment is suitable for indoor communication wiring, such as office buildings and shopping malls, and can meet the needs of high-speed data transmission and stable signal transmission.

[0058] Example 3: A multi-mode dual-core optical fiber cable with a new structure, the outer sheath 1 is made of polyethylene material with better weather resistance to meet the requirements of outdoor environment. The inner sheath 2 is also made of polyvinyl chloride material, but the color is gray. The dual-core optical fiber 3 uses multi-mode optical fiber with higher bandwidth to meet the needs of large-capacity data transmission. The fiber reinforcement yarn 5 uses high-strength aramid fiber to further improve the tensile strength of the optical cable. The water-blocking tape 4 uses high-performance expansion material to provide better waterproof effect. The materials and parameters of the conical sleeve 6, the connecting sleeve 7 and the optical fiber plug-in module 8 are the same as those in Example 1, but the surface of the plug-in ring 801 is chrome-plated to improve its wear resistance and corrosion resistance. The multi-mode dual-core optical fiber 3 cable in this embodiment is suitable for outdoor communication lines, such as communication pipelines and overhead lines beside urban roads. It can maintain good performance in harsh outdoor environments and ensure the reliability of communication.

[0059] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the utility model are included in the scope of the claims of the present invention.

Claims

1. A multi-mode dual-core optical fiber cable of a novel structure, comprising an outer sheath (1), characterized in that: An inner sheath (2) is arranged in the outer sheath (1), a dual-core optical fiber (3) is arranged in the inner sheath (2), the outer surface of the dual-core optical fiber (3) is wrapped with fiber reinforcement yarn (5), a water-blocking tape (4) is arranged between the inner sheath (2) and the dual-core optical fiber (3), the outer sheath (1) is inserted into a conical sleeve (6), the conical sleeve (6) is connected to a connecting sleeve (7), and the connecting sleeve (7) is connected to an optical fiber plug-in module (8).

2. The multi-mode dual-core optical fiber cable of a novel structure according to claim 1, characterized in that: The optical fiber plug-in module (8) is provided with a plug-in ring (801), the outer surface of the plug-in ring (801) is provided with a plug-in buckle (802), and the inner surface of the plug-in ring (801) is provided with a plug-in hole (803).

3. The multi-mode dual-core optical fiber cable of a novel structure according to claim 2, characterized in that: An optical fiber connection pin (9) is provided in the insertion hole (803), and a pin sheath (903) is provided at the bottom of the optical fiber connection pin (9).

4. The multi-mode dual-core optical fiber cable of a novel structure according to claim 3 is characterized in that: The water blocking tape (4) is an expansion type water blocking tape (4).

5. The multi-mode dual-core optical fiber cable of a novel structure according to claim 4, characterized in that: A positioning groove (901) is provided inside the plug-in ring (801), and the positioning groove (901) has a depth of 0.5 mm and a width of 0.8 mm.

6. The multi-mode dual-core optical fiber cable of a novel structure according to claim 5, characterized in that: An inner bevel portion (902) for inserting a pin is provided at the edge of the positioning groove (901), and the inclination angle of the inner bevel portion (902) for inserting a pin is 30°.

7. The multi-mode dual-core optical fiber cable of a novel structure according to claim 6, characterized in that: The outer surface of the optical fiber plug-in module (8) is provided with a screw-on cap (10).

8. The multi-mode dual-core optical fiber cable of a novel structure according to claim 7, characterized in that: The outer surface of the screw-on cap (10) is provided with an anti-slip rubber layer (101).

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