Branch protection device of photoelectric composite cable

Abstract

The utility model discloses a branch protection device of a photoelectric composite cable, the branch protection device is configured on the photoelectric composite cable and an access cable, the branch protection device comprises a snap ring, a spring buckle rod, an elastic buckle sheet and a gasket nut, the snap ring is clamped at the branch access end of the photoelectric composite cable, and the spring buckle rod is clamped at the branch access end of the photoelectric composite cable. The two sides of the end of the clamping ring are movably connected with spring buckle rods through elastic pin shafts. The spring buckle rod rotates relative to the clamping ring, and a buckle pin is arranged at the tail end of the spring buckle rod; the elastic cramp sleeves the outer side of an access cable, a through hole is formed in the middle of the elastic cramp, first fastening edges are arranged on the top side and the bottom side of the elastic cramp, and second fastening edges are arranged on two sides of the front end of the elastic cramp; the gasket nut is arranged on the inner side of the elastic buckle piece and is fixed by the first buckling edge. The gasket nut is locked on the outer side of the access cable through the internal thread. According to the utility model, through multiple buckling design, the stability of cable connection is ensured, cable loosening caused by external force or environmental change is prevented, and the use safety of the photoelectric composite cable is further improved.

Description

Technical Field

[0001] This utility model relates to the field of anti-detachment technology for access nodes of optoelectronic composite cables, specifically a branch protection device for optoelectronic composite cables. Background Technology

[0002] Fiber optic composite cables are commonly used for transmitting both power and signals, and are widely used in communications, power, and transportation. In these applications, the branch connection point of the fiber optic composite cable is a critical link. Especially in harsh environments, the connection point of the fiber optic composite cable often faces several potential safety hazards and technical challenges, among which cable loosening is particularly prominent.

[0003] Cable detachment typically occurs at access points or branch points, where connections are exposed to the environment and susceptible to external forces, vibrations, temperature variations, mechanical stress, or improper installation. Especially during prolonged use, temperature changes, humidity fluctuations, or external tension can easily cause the connection between the access cable and the fiber optic composite cable to loosen or detach. Cable detachment not only leads to signal or power transmission interruptions but can also trigger serious safety accidents such as equipment failure, electrical short circuits, and fires, resulting in significant property damage and personal injury.

[0004] Most existing cable connection protection solutions only provide a single fixing method and lack adaptability to external forces and vibrations. In some cases, although the protection device can play a fixing role initially, the stability of the connection point gradually decreases over time or with changes in environmental conditions, making it impossible to maintain a stable connection in the long term. Therefore, there is an urgent need for a protection device that can provide long-term reliable fixing and effectively prevent cable loosening, especially at the connection between fiber optic composite cables and access cables. Utility Model Content

[0005] The purpose of this utility model is to provide a branch protection device for an optoelectronic composite cable. Through a multi-snap design, it ensures the stability of the cable connection and prevents the cable from loosening due to external forces or environmental changes, thereby further improving the safety and reliability of the optoelectronic composite cable. It is especially suitable for power and communication facilities that operate for long periods of time in complex environments.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a branch protection device for an optoelectronic composite cable, wherein the branch protection device is configured on the optoelectronic composite cable and the access cable, the branch protection device includes a retaining ring, a spring latch, an elastic latch piece, and a washer nut, wherein: the retaining ring is clamped at the branch access end of the optoelectronic composite cable, and the spring latch is movably connected to both sides of the end of the retaining ring by elastic pins; the spring latch is rotatably arranged relative to the retaining ring, and a latching pin is provided at the end of the spring latch; the elastic latch piece is sleeved on the outside of the access cable, the elastic latch piece has a through hole in the middle, the top and bottom sides of the elastic latch piece have first fastening edges, and the front two sides of the elastic latch piece have second fastening edges; the washer nut is located inside the elastic latch piece and is fixed by the first fastening edges, and the washer nut is locked to the outside of the access cable by internal threads.

[0007] Preferably, the first snap-fit ​​edge is a fixed snap-fit ​​edge. Through its tight connection with the washer nut, the first snap-fit ​​edge plays a preliminary fixing role, preventing the washer nut from shifting or loosening.

[0008] Preferably, the second snap-fit ​​edge is a deformable elastic snap-fit ​​edge. The inner side of the second snap-fit ​​edge abuts against the outer side of the access cable, and the outer side of the second snap-fit ​​edge has a snap groove that mates with the snap pin. During installation, the second snap-fit ​​edge can deform under external force, allowing the washer nut to be securely fastened to its inner side. When the washer nut is locked to the outer side of the access cable through its internal thread, the elastic deformation of the second snap-fit ​​edge further enhances the tightness of the connection.

[0009] Preferably, the locking pin corresponds to the locking groove on the outer side of the second locking edge. The locking pin rotates with the spring locking rod and engages with the locking groove to securely connect the access cable and the fiber optic composite cable. The locking pin and the locking groove on the outer side of the second locking edge are precisely designed to cooperate with each other, forming a stable locking structure. This locking structure is particularly suitable for environments with high vibration, high tension, or strong external interference. Even when the cable is exposed to strong external forces or vibrations, the connection remains stable.

[0010] Preferably, the inner diameter of the through hole in the middle of the elastic buckle is compatible with the inner diameter of the screw hole of the washer nut and the outer diameter of the connected cable.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through a multi-interlocking design, ensures the stability of the cable connection and prevents the cable from loosening due to external forces or environmental changes, further improving the safety and reliability of the optoelectronic composite cable. It is especially suitable for power and communication facilities that operate for long periods of time in complex environments.

[0013] 2. This utility model's branch protection device adopts a simple modular structure, making installation straightforward and intuitive. Users can complete cable connections with simple operations. This design not only reduces installation and maintenance time but also significantly lowers labor costs and improves work efficiency. Furthermore, components can be replaced as needed, reducing the high costs associated with complete replacements due to component damage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the optoelectronic composite cable and access cable of this utility model;

[0015] Figure 2 This is a schematic diagram of the branch protection device of this utility model;

[0016] Figure 3 This is a schematic diagram illustrating the application of the branch protection device in the embodiments of this utility model. Figure 1 ;

[0017] Figure 4 This is a schematic diagram illustrating the application of the branch protection device in the embodiments of this utility model. Figure 2 .

[0018] In the diagram: 1. Access cable; 101. External thread; 2. Snap ring; 3. Spring latch; 301. Buckle pin; 4. Elastic clip; 401. First snap-fit ​​edge; 402. Second snap-fit ​​edge; 5. Washer nut. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please see Figure 1 , Figure 1 In this cable, the outer side of the access cable 1 is provided with an external thread 101, and the access cable 1 is connected to the optoelectronic composite cable through a terminal block. The conductors of the access cable 1 and the optoelectronic composite cable are connected accordingly through the corresponding terminal blocks to ensure a stable and reliable electrical connection between the conductors.

[0023] Please see Figures 2-4 This utility model provides a technical solution: a branch protection device for an optoelectronic composite cable. The branch protection device is configured on the optoelectronic composite cable and the access cable 1. The branch protection device includes a retaining ring 2, a spring latch 3, an elastic latch 4, and a washer nut 5.

[0024] In this embodiment, the retaining ring 2 is attached to the branch access end of the optical fiber composite cable, and the two sides of the end of the retaining ring 2 are movably connected to the spring latch 3 through the elastic pin.

[0025] In this embodiment, the elastic fastener 4 is fitted onto the outside of the access cable 1. The elastic fastener 4 has a through hole in the middle, and its top and bottom sides have first fastening edges 401. These first fastening edges 401 are fixed fastening edges; through a tight connection with the washer nut 5, they provide initial fixation, preventing displacement or loosening of the washer nut 5. The front ends of the elastic fastener 4 have second fastening edges 402 on both sides. These second fastening edges 402 are elastic fastening edges with deformation capabilities. The inner side of the second fastening edge 402 abuts against the outer side of the access cable 1, and the outer side of the second fastening edge 402 has a fastening groove that mates with the fastening pin 301. During installation, the second fastening edge 402 can deform under external force, allowing the washer nut 5 to be securely fastened to its inner side. When the washer nut 5 is locked to the outside of the access cable 1 through its internal thread, the elastic deformation of the second fastening edge 402 further enhances the tightness of the connection.

[0026] In this embodiment, the washer nut 5 is located inside the elastic fastener 4 and is fixed by the first fastening edge 401. The washer nut 5 is locked to the outside of the access cable 1 by the internal thread.

[0027] In this embodiment, the spring-loaded latch 3 is rotatably mounted relative to the retaining ring 2. A latching pin 301 is provided at the end of the spring-loaded latch 3, which corresponds to the latching groove on the outer side of the second latching edge 402. The latching pin 301 rotates with the spring-loaded latch 3 and engages with the latching groove to securely connect the access cable 1 to the optical fiber composite cable. The latching pin 301 and the latching groove on the outer side of the second latching edge 402 are precisely designed to cooperate with each other, forming a stable latching and locking structure. This latching and locking structure is particularly suitable for environments with high vibration, high tension, or strong external interference; even when the cable is exposed to strong external forces or vibrations, the connection remains stable.

[0028] In this embodiment, the inner diameter of the through hole in the middle of the elastic buckle 4 is adapted to the inner diameter of the screw hole of the washer nut 5 and the outer diameter of the access cable 1.

[0029] Please see Figure 3 , Figure 4 In conjunction with the above embodiments, this utility model also provides a method for installing and using the above-mentioned branch protection device, including the following steps:

[0030] 1) Attach the retaining ring 2 to the branch access end of the optical fiber composite cable to ensure that the retaining ring 2 is firmly fixed on the optical fiber composite cable. Then, put the elastic buckle 4 and the washer nut 5 on the outside of the access cable 1 in sequence to ensure that the inner diameter of the through hole of the elastic buckle 4 matches the outer diameter of the access cable 1, and that the internal thread of the washer nut 5 can be tightly connected to the access cable 1 to ensure the fixing effect.

[0031] 2) After the connection between the access cable 1 and the optoelectronic composite cable is completed, the elastic change of the second fastening edge 402 on the elastic fastener 4 is used to make the washer nut 5 tightly connected and fixed to the outside of the cable by means of the deformation of the external force.

[0032] 3) Rotate the spring latch 3 relative to the retaining ring 2 to ensure that the latch pin 301 at the end of the spring latch 3 is precisely engaged with the latch groove on the outer side of the second latching edge 402 on the elastic latch piece 4, so that the latch pin 301 is engaged with the latch groove, thereby forming a firm latching and locking structure, further ensuring the stable connection between the access cable 1 and the optical fiber composite cable.

[0033] 4) Check the tightness of all connecting components to ensure that the connection between the washer nut 5, the elastic clip 4, and the access cable 1 is secure and not loose.

[0034] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0035] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A branch protection device for an optoelectronic composite cable, the branch protection device being disposed on the optoelectronic composite cable and the access cable (1), the branch protection device comprising a retaining ring (2), a spring latch (3), an elastic latch plate (4), and a washer nut (5), characterized in that: The retaining ring (2) is attached to the branch access end of the optical fiber composite cable, and the spring latch (3) is movably connected to both sides of the end of the retaining ring (2) through the elastic pin. The spring latch (3) is rotatably mounted relative to the retaining ring (2), and a latch pin (301) is provided at the end of the spring latch (3); The elastic buckle (4) is fitted onto the outside of the access cable (1). The elastic buckle (4) has a through hole in the middle. The top and bottom sides of the elastic buckle (4) have first fastening edges (401), and the front ends of the elastic buckle (4) have second fastening edges (402).

2. The branch protection device for an optoelectronic composite cable according to claim 1, characterized in that: The washer nut (5) is located inside the elastic clip (4) and fixed by the first snap-fit ​​edge (401). The washer nut (5) is locked to the outside of the access cable (1) by the internal thread.

3. The branch protection device for an optoelectronic composite cable according to claim 1, characterized in that: The first snap-fit ​​edge (401) is a fixed snap-fit ​​edge, and the second snap-fit ​​edge (402) is an elastic snap-fit ​​edge with deformation.

4. The branch protection device for an optoelectronic composite cable according to claim 1, characterized in that: The inner side of the second snap-fit ​​edge (402) abuts against the outer side of the access cable (1), and the outer side of the second snap-fit ​​edge (402) is provided with a snap groove that cooperates with the snap pin (301).

5. The branch protection device for an optoelectronic composite cable according to claim 1, characterized in that: The buckle (301) corresponds to the buckle groove on the outer side of the second buckle edge (402), and the buckle (301) rotates with the spring buckle rod (3) to buckle with the buckle groove.

6. The branch protection device for an optoelectronic composite cable according to claim 1, characterized in that: The inner diameter of the through hole in the middle of the elastic buckle (4) is compatible with the inner diameter of the screw hole of the washer nut (5) and the outer diameter of the access cable (1).

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