A radio frequency coaxial cable assembly

Abstract

This utility model discloses a radio frequency coaxial cable assembly, belonging to the field of coaxial cables. The lower end of the cable head is connected to a tail connector via a threaded connection, and a protective cable is connected to the tail connector. The inner core of the protective cable is connected to the connector via a connector core. The end face of the tail connector has an embedded slot, into which a retractable connecting sleeve is embedded. The tail connector, the retractable connecting mechanism, and the protective cable together constitute a stable and reliable signal transmission system. The tail connector provides a stable connection base, the retractable connecting mechanism adapts to protective cables of different sizes, ensuring connection flexibility and versatility. The snap-fit ​​ring on the protective cable fits tightly with the retractable connecting mechanism, achieving stable signal transmission. This design not only improves the component's service life and performance stability but also reduces maintenance costs, providing users with a more convenient and efficient user experience.

Description

Technical Field

[0001] This utility model relates to the field of coaxial cables, and in particular to a radio frequency coaxial cable assembly. Background Technology

[0002] Radio frequency (RF) coaxial cables, specifically designed for RF signal transmission, have a core structure consisting of two concentric conductors sharing a common axis, which is also shared with the shielding layer. This unique design gives RF coaxial cables significant advantages in high-frequency signal transmission.

[0003] Center conductor: Generally made of copper or silver-plated copper, it plays a crucial role in signal transmission. It can be a single solid wire or a multi-strand stranded wire. Insulation layer: Utilizing low-loss materials such as polyethylene or polytetrafluoroethylene, it wraps around the center conductor to maintain electrical isolation between the inner and outer conductors. Outer conductor: Composed of welded copper strip, aluminum tube structure, or braided copper mesh, forming a closed shielding layer that effectively suppresses external electromagnetic interference. Outer sheath: Made of weather-resistant materials such as polyvinyl chloride or polyethylene, it protects the cable from mechanical damage and environmental factors.

[0004] With the continuous development of 5G communications, aerospace and other fields, the market demand for high-end radio frequency coaxial cables is showing a rapid growth trend, with an estimated annual growth rate of 22% - 25%. Semi-flexible, low-loss, micro-fine, and phase-stable special cables have become the focus of current research and development to meet the increasingly stringent requirements for signal transmission quality.

[0005] Currently, in practical use, the connection between the cable head and the cable in radio frequency coaxial cables is prone to wear due to repeated bending. In real-world applications, cables often need to be bent and adjusted according to equipment layout or operational requirements. This frequent bending puts continuous mechanical stress on the connection between the cable head and the cable. Over time, this stress can damage the insulation layer at the connection, expose the metal conductor, and even cause faults such as poor contact or short circuits. This not only adversely affects the signal transmission quality but may also shorten the cable's lifespan and increase maintenance and replacement costs. Utility Model Content

[0006] The main objective of this invention is to provide a radio frequency coaxial cable assembly that can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A radio frequency coaxial cable assembly includes a cable head, a connector, a connector inner core, and a protective cable, wherein the connector inner core is located inside the cable head, and the connector is located on top of the cable head; The lower end of the cable head is connected to a tail connector via a threaded connection, and a protective cable is connected to the tail connector. The inner core of the protective cable is connected to the connector via the inner core of the connector. The end face of the tail connector is provided with an embedded slot, and a retractable connecting sleeve is embedded in the slot. The retractable connecting sleeve is connected to a retractable inner sleeve through an elastic connecting strip. The retractable inner sleeve is provided with a snap-fit ​​ring inside. The end of the protective cable is provided with a snap-fit ​​annular groove that matches the snap-fit ​​ring.

[0008] As an optional solution of this application, the side wall of the retractable connecting sleeve is provided with a notch, which is located between the retractable connecting sleeves of the two elastic connecting strips, so as to facilitate the retractable connecting sleeve to be embedded in the tail connecting seat. As an optional solution of this application, multiple snap-fit ​​annular grooves are equidistantly distributed on the protective cable. The snap-fit ​​annular grooves are designed as circular grooves with an arc-shaped inner wall edge. The protective cable is connected to the shrink-fit connecting sleeve and the shrink-fit inner sleeve by adhesive. As an optional solution of this application, a plurality of the snap-fit ​​rings are equidistantly distributed on the inner wall of the shrinkable inner sleeve. The snap-fit ​​rings are integrated with the shrinkable inner sleeve. The edges of the snap-fit ​​rings are arc-shaped and fit into the snap-fit ​​annular groove. Adhesive is injected to achieve the adhesive connection between the snap-fit ​​rings and the snap-fit ​​annular groove. As an optional solution of this application, multiple elastic connecting strips are distributed in a ring on the shrinkable inner sleeve and the shrinkable connecting sleeve. The elastic connecting strips are hot-melted and fixed on the shrinkable inner sleeve and the shrinkable connecting sleeve, and the shrinkable inner sleeve and the shrinkable connecting sleeve are expanded inward and outward through the elastic connecting strips. As an optional solution of this application, the shape of the retractable connecting sleeve is adapted to the embedded slot, and the shape is a flared design. The retractable connecting sleeve and the tail connecting seat are bonded together by adhesive.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The specially designed threaded connection ensures a tight fit with the cable head, providing a stable connection foundation for the entire assembly and guaranteeing continuous signal transmission. Meanwhile, the recessed slot on its end face facilitates the insertion of the retractable connector, further enhancing connection stability.

[0010] The retractable connecting sleeve and the retractable inner sleeve are connected by a flexible connecting strip. This design allows the connection mechanism to adapt to protective cables of different sizes, improving the versatility of the component. The flared design of the retractable connecting sleeve not only facilitates installation but also effectively disperses stress during connection, enhancing connection stability. Furthermore, the presence of the flexible connecting strip allows the retractable inner sleeve and the retractable connecting sleeve to expand inwards and outwards, further adapting to different connection requirements.

[0011] The snap-fit ​​rings on the protective cable and the retractable inner sleeve are matched and securely connected by adhesive. This design enhances the connection stability between the protective cable and the retractable connection mechanism, effectively preventing interruptions or attenuation during signal transmission. Simultaneously, the arc-shaped design of the snap-fit ​​rings reduces stress concentration during connection, improving connection reliability.

[0012] The tail connector, retractable connection mechanism, and protective cable together constitute a stable and reliable signal transmission system. The tail connector provides a stable connection base, while the retractable connection mechanism adapts to protective cables of different sizes, ensuring connection flexibility and versatility. The snap-fit ​​ring on the protective cable works tightly with the retractable connection mechanism to achieve stable signal transmission. This design not only improves the lifespan and performance stability of the components but also reduces maintenance costs, providing users with a more convenient and efficient user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is a front view of the overall structure of this utility model; Figure 4 The following are illustrations of the tail connector, protective cable, retractable connector sleeve, elastic connector strip, and retractable inner sleeve of this utility model.

[0014] In the diagram: 1. Cable head; 2. Connector; 3. Connector inner core; 4. Tail connector; 5. Connecting thread; 6. Embedded slot; 7. Protective cable; 8. Snap-fit ​​ring groove; 9. Retractable connecting sleeve; 10. Elastic connecting strip; 11. Retractable inner sleeve; 12. Snap-fit ​​ring; 13. Notch. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 - Figure 4 As shown, an RF coaxial cable assembly is mainly composed of several parts, including a cable head 1, a connector 2, a connector inner core 3, and a protective cable 7. Specifically, the connector inner core 3 is cleverly disposed inside the cable head 1, while the connector 2 is located at the top of the cable head 1 to facilitate docking with other devices.

[0017] The lower end of the cable head 1 is tightly connected to the tail connector 4 via a specially designed threaded part 5, and the tail connector 4 is further connected to the protective cable 7. The inner core of the protective cable 7 is electrically connected to the connector 2 via the connector inner core 3 to ensure stable signal transmission.

[0018] The end face of the tail connector 4 has a specially designed embedded slot 6, into which a retractable connector sleeve 9 is embedded. The interior of the retractable connector sleeve 9 is connected to a retractable inner sleeve 11 via multiple elastic connecting strips 10, and the interior of the retractable inner sleeve 11 is provided with multiple snap-fit ​​rings 12. The end of the protective cable 7 has snap-fit ​​annular grooves 8 that are adapted to these snap-fit ​​rings 12 to ensure a secure connection between the parts.

[0019] A notch 13 is provided on the side wall of the retractable connecting sleeve 9. The notch 13 is located in the retractable connecting sleeve 9 between the two elastic connecting strips 10. The purpose of this design is to facilitate the retractable connecting sleeve 9 to be smoothly inserted into the tail connecting seat 4, thus simplifying the installation process.

[0020] Multiple snap-fit ​​annular grooves 8 are evenly distributed on the protective cable 7. These snap-fit ​​annular grooves 8 adopt a circular groove design with an arc-shaped inner wall edge to enhance the stability and reliability of the connection. The connection between the protective cable 7 and the shrink-fit connecting sleeve 9 and shrink-fit inner sleeve 11 is firmly connected with adhesive to ensure the stability of the overall structure.

[0021] On the inner wall of the retractable inner sleeve 11, multiple snap-fit ​​rings 12 are evenly distributed. These snap-fit ​​rings 12 are integrally designed with the retractable inner sleeve 11, and their edges are also arc-shaped, fitting into the snap-fit ​​annular groove 8. By injecting adhesive, the snap-fit ​​rings 12 and the snap-fit ​​annular groove 8 are bonded together, further improving the strength of the connection.

[0022] Multiple elastic connecting strips 10 are distributed in a ring on the shrinkable inner sleeve 11 and the shrinkable connecting sleeve 9. These elastic connecting strips 10 are fixed to the shrinkable inner sleeve 11 and the shrinkable connecting sleeve 9 by heat fusion fixing technology. Through the action of these elastic connecting strips 10, the shrinkable inner sleeve 11 and the shrinkable connecting sleeve 9 can be expanded inward and outward to adapt to different connection requirements.

[0023] The shape of the retractable connector 9 is adapted to the embedded slot 6. Specifically, the shape adopts a flared design, which not only facilitates installation but also enhances the stability of the connection. The retractable connector 9 and the tail connector 4 are bonded together with adhesive to ensure a firm and reliable connection between the parts, thereby improving the service life and performance stability of the entire RF coaxial cable assembly.

[0024] Place the inner core 3 of the connector into the internal space of the cable head 1, ensuring its accurate positioning. Install the connector 2 at the top of the cable head 1 for subsequent docking with other equipment. Use the specially designed connecting thread 5 to securely connect the lower end of the cable head 1 to the tail connector 4.

[0025] Embed the retractable connecting sleeve 9 into the embedding slot 6 on the end face of the tail connector 4, paying attention to the position of the notch 13 to ensure that the retractable connecting sleeve 9 can be smoothly embedded. Inside the retractable connecting sleeve 9, connect the retractable inner sleeve 11 with multiple elastic connecting strips 10, ensuring that the elastic connecting strips 10 are evenly distributed in a ring and firmly fixed by heat fusion fixing technology. Align the end of the protective cable 7 with the retractable inner sleeve 11, so that the snap-fit ​​annular groove 8 of the end of the protective cable 7 engages with the snap-fit ​​ring 12 on the retractable inner sleeve 11, and then inject adhesive to ensure a firm connection. Connect the other end of the protective cable 7 to the tail connector 4, ensuring that the entire assembly is tightly connected without any looseness.

[0026] During use, connect the connector 2 of the RF coaxial cable assembly to the corresponding interface of other devices to ensure a secure connection. Because the protective cable 7 has multiple equally spaced snap-fit ​​annular grooves 8, which are firmly connected to the snap-fit ​​rings 12 on the retractable inner sleeve 11 using adhesive, the stability and reliability of the signal during transmission are ensured. When disassembling or replacing components, proceed in the reverse order of the assembly process. Exercise caution during disassembly to avoid damaging the components.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A radio frequency coaxial cable assembly, comprising a cable head (1), a connector (2), a connector inner core (3), and a protective cable (7), wherein the connector inner core (3) is located inside the cable head (1), and the connector (2) is located on top of the cable head (1), characterized in that: The lower end of the cable head (1) is connected to the tail connector (4) through the connecting thread (5), and the protective cable (7) is connected through the tail connector (4). The inner core of the protective cable (7) is connected to the connector (2) through the connector inner core (3). The end face of the tail connector (4) is provided with an embedded slot (6), and a retractable connector sleeve (9) is embedded in the slot of the embedded slot (6). The retractable connector sleeve (9) is connected to a retractable inner sleeve (11) through an elastic connecting strip (10). The retractable inner sleeve (11) is provided with a snap ring (12) inside. The end of the protective cable (7) is provided with a snap ring groove (8) that is adapted to the snap ring (12).

2. The radio frequency coaxial cable assembly according to claim 1, characterized in that: The retractable connecting sleeve (9) has a notch (13) on its side wall. The notch (13) is located between the retractable connecting sleeves (9) of the two elastic connecting strips (10), so that the retractable connecting sleeve (9) can be inserted into the tail connecting seat (4).

3. The radio frequency coaxial cable assembly according to claim 2, characterized in that: Multiple snap-fit ​​annular grooves (8) are equidistantly distributed on the protective cable (7). The snap-fit ​​annular grooves (8) are designed as circular grooves with an arc-shaped inner wall edge. The protective cable (7) is connected to the shrink-fit connecting sleeve (9) and the shrink-fit inner sleeve (11) by adhesive.

4. The radio frequency coaxial cable assembly according to claim 3, characterized in that: Multiple snap-fit ​​rings (12) are equidistantly distributed on the inner wall of the shrinkable inner sleeve (11). The snap-fit ​​rings (12) are integrated with the shrinkable inner sleeve (11). The edges of the snap-fit ​​rings (12) are arc-shaped and are fitted and connected with the snap-fit ​​annular groove (8). Adhesive is injected to achieve the adhesive connection between the snap-fit ​​rings (12) and the snap-fit ​​annular groove (8).

5. The radio frequency coaxial cable assembly according to claim 4, characterized in that: Multiple elastic connecting strips (10) are distributed in a ring on the shrinkable inner sleeve (11) and the shrinkable connecting sleeve (9). The elastic connecting strips (10) are heat-fused and fixed on the shrinkable inner sleeve (11) and the shrinkable connecting sleeve (9). The shrinkable inner sleeve (11) and the shrinkable connecting sleeve (9) are expanded inward and outward through the elastic connecting strips (10).

6. The radio frequency coaxial cable assembly according to claim 5, characterized in that: The shape of the retractable connecting sleeve (9) is adapted to the embedded slot (6). The shape is a flared design. The retractable connecting sleeve (9) and the tail connecting seat (4) are bonded together by adhesive.

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