Radio frequency coaxial cable with high temperature resistant and oxidation resistant composite plating layer

Abstract

The utility model discloses a kind of radio frequency coaxial cables with high-temperature-resistant antioxidation composite coating, including the outer side position of cable connection outer sheath is provided with outer connection metal sleeve head;The outer side surface position of outer connection metal sleeve head is provided with recessed outer side groove, recessed outer side groove is provided with connection outer thread, the outer position of connection outer thread is provided with outer moving connection ring, the side surface position of outer moving connection ring is provided with telescopic connection layer, the inner side surface position of outer connection metal sleeve head is provided with inner side air bag ring, rotating outer moving connection ring extrudes telescopic connection layer so that it is compressed, its internal gas will enter into inner side air bag ring and expand, inner side air bag ring expansion will be tightly attached cable connection outer sheath, so that outer connection metal sleeve head can be conveniently installed and connected with its radio frequency coaxial cable outer side and disassembled, and then the radio frequency coaxial cable with high-temperature-resistant antioxidation composite coating can be effectively improved with practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of radio frequency coaxial cables, specifically relating to a radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating. Background Technology

[0002] Radio frequency (RF) coaxial cables were invented in the 1930s, specifically designed for high-frequency signal transmission. Their core structure is based on the coaxial principle (coaxial distribution of inner and outer conductors) to achieve efficient control of the electromagnetic field. Initially used primarily in military radar systems, they have gradually expanded to broadcasting, mobile communications, aerospace, and other fields with the development of communication technology, becoming a standardized solution for RF signal transmission.

[0003] RF coaxial cables with high-temperature resistant and oxidation-resistant composite coatings utilize transverse electromagnetic waves (TEM mode) to propagate between the inner and outer conductors. The electromagnetic field is strictly confined within the insulating medium, significantly reducing radiation loss and external interference. Characteristic impedance matching design ensures minimal signal reflection.

[0004] However, the connectors of RF coaxial cables with high-temperature resistant and anti-oxidation composite coatings are usually connected with adhesive during installation, which makes subsequent replacement and disassembly quite inconvenient.

[0005] This utility model addresses the above-mentioned problems by providing an improvement on a radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating that facilitates the connection and installation of connectors. Utility Model Content

[0006] The purpose of this utility model is to provide a radio frequency coaxial cable with a high temperature resistant and antioxidant composite coating, so as to solve the problem mentioned in the background art that the connector of the radio frequency coaxial cable with a high temperature resistant and antioxidant composite coating is usually connected by adhesive during installation, which is quite inconvenient for subsequent replacement and disassembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a radio frequency coaxial cable with a high-temperature resistant and anti-oxidation composite coating, including an external connecting metal sleeve provided at the outer position of the cable connecting outer sheath;

[0008] A concave outer groove is provided on the outer side of the external connecting metal sleeve, and an external connecting thread is provided in the concave outer groove. An external movable connecting ring is provided on the outer side of the external connecting thread, and a telescopic connecting layer is provided on the side of the external movable connecting ring. An inner airbag ring is provided on the inner side of the external connecting metal sleeve.

[0009] Preferably, the outer movable connecting ring has a textured surface on its outer side and an internal thread that matches the external thread on its inner side.

[0010] Preferably, a side-connecting threaded post is provided on the side of the external connecting metal sleeve, and the side-connecting threaded post and the external connecting metal sleeve are an integral structure.

[0011] Preferably, a rotating connection knob is provided at the outer side of the side connecting threaded post. The outer side of the rotating connection knob has an octagonal structure, and the inner side of the rotating connection knob has a threaded groove that matches the side connecting threaded post.

[0012] Preferably, the outer sheath of the cable connection is made of polytetrafluoroethylene material, and the material of the outer sheath of the cable connection is doped with ceramic micro powder.

[0013] Preferably, an inner braided layer one is provided on the inner side of the outer sheath of the cable connection, an inner braided layer two is provided on the inner side of the inner braided layer one, and an inner aluminum foil layer is provided on the inner side of the inner braided layer two.

[0014] Preferably, an inner insulating layer is provided on the inner side of the second built-in braided layer, and an inner copper conductor layer is provided in the middle of the inner insulating layer.

[0015] Compared with the prior art, this utility model provides a radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating, which has the following advantages:

[0016] In the RF coaxial cable with a high-temperature resistant and anti-oxidation composite coating, a concave outer groove is provided on the outer side of the outer connecting metal sleeve, and an external thread is provided in the concave outer groove. An outer movable connecting ring is provided outside the external thread, and a telescopic connecting layer is provided on the side of the outer movable connecting ring. An inner air bladder ring is provided on the inner side of the outer connecting metal sleeve. In use, rotating the outer movable connecting ring compresses the telescopic connecting layer, causing it to be compressed. The gas inside the telescopic connecting layer expands into the inner air bladder ring, which then tightly fits the outer sheath of the cable connection. This allows the outer connecting metal sleeve to be easily installed, connected, and disassembled with the outer side of the RF coaxial cable, thereby effectively improving the practicality of the RF coaxial cable with the high-temperature resistant and anti-oxidation composite coating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the radio frequency coaxial cable with a high-temperature resistant and antioxidant composite coating according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the radio frequency coaxial cable with a high-temperature resistant and antioxidant composite coating, without an external moving connecting ring and a telescopic connecting layer.

[0019] Figure 3This is an enlarged schematic diagram of the radio frequency coaxial cable structure with a high-temperature resistant and antioxidant composite coating at position A of this utility model.

[0020] In the diagram: 1. Cable connection outer sheath; 2. Internal braided layer one; 3. Internal braided layer two; 4. Inner aluminum foil layer; 5. Internal insulation layer; 6. Inner copper conductor layer; 7. Outer connecting metal sleeve; 8. Rotary connecting knob; 9. Side connecting threaded post; 10. Concave outer groove; 11. Connecting external thread; 12. Inner airbag ring; 13. Outer movable connecting ring; 14. Telescopic connecting layer. Detailed Implementation

[0021] 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.

[0022] This utility model provides, for example Figure 1-3 As shown, a radio frequency coaxial cable with a high temperature resistant and oxidation-resistant composite coating includes an outer connecting metal sleeve 7 provided on the outer side of the cable connecting outer sheath 1.

[0023] The outer side of the external connecting metal sleeve 7 is provided with a concave outer groove 10, and the concave outer groove 10 is provided with a connecting external thread 11. The outer movable connecting ring 13 is provided at the outer position of the connecting external thread 11, and the side of the outer movable connecting ring 13 is provided with a telescopic connecting layer 14. The inner side of the external connecting metal sleeve 7 is provided with an inner airbag ring 12. In use, rotating the outer movable connecting ring 13 compresses the telescopic connecting layer 14, causing it to be compressed. The gas inside the layer expands into the inner airbag ring 12. The expansion of the inner airbag ring 12 tightly fits the cable connection outer sheath 1, thereby allowing the external connecting metal sleeve 7 to be easily installed, connected, and disassembled with the outside of the RF coaxial cable. This effectively improves the practicality of the RF coaxial cable with the high-temperature resistant and anti-oxidation composite coating.

[0024] like Figure 3 As shown, the outer movable connecting ring 13 has a textured surface on its outer side and an internal thread that matches the connecting external thread 11 on its inner side. The textured surface of the outer movable connecting ring 13 can increase the friction with the user's hand, thereby making it easier for the user to rotate the ring.

[0025] like Figure 2As shown, a side connecting threaded post 9 is provided on the side of the external connecting metal sleeve 7. The side connecting threaded post 9 and the external connecting metal sleeve 7 are an integral structure. A rotating connecting knob 8 is provided on the outer side of the side connecting threaded post 9. The outer side of the rotating connecting knob 8 is an octagonal structure. The inner side of the rotating connecting knob 8 is provided with a threaded groove that matches the side connecting threaded post 9. After rotating the rotating connecting knob 8, it can be connected to the designated connection port.

[0026] like Figure 1 As shown, the outer sheath 1 of the cable connection is made of polytetrafluoroethylene (PTFE). The material of the outer sheath 1 of the cable connection is doped with ceramic micro powder. PTFE has high temperature resistance (-65℃~260℃) and oxidation resistance, strong chemical stability, and is suitable for extreme environments. The addition of ceramic micro powder can delay the oxidative degradation process of the material under high temperature environment.

[0027] like Figure 1 As shown, an inner braided layer 2 is provided on the inner side of the outer sheath 1 of the cable connection, and an inner braided layer 3 is provided on the inner side of the inner braided layer 2. The inner braided layer 2 and the inner braided layer 3 form a closed shielding layer through a mesh structure made of metal wires (such as tin-plated copper wire, aluminum-magnesium alloy wire, etc.), which effectively blocks external electromagnetic noise (such as radiation interference from industrial equipment, radio waves, etc.) from entering the inside of the cable.

[0028] like Figure 1 As shown, an internal insulating layer 5 is provided on the inner side of the internal braided layer 3, and an inner copper conductor layer 6 is provided in the middle of the internal insulating layer 5. The inner copper conductor layer 6 serves as the main transmission channel for radio frequency signals. Through the high conductivity of copper or silver-plated copper material, it ensures efficient transmission of high-frequency current and reduces signal attenuation. The internal insulating layer 5 physically isolates the inner conductor from the outer conductor to prevent short circuits caused by direct contact, while maintaining the stability of the characteristic impedance.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating, characterized in that: An external connecting metal sleeve (7) is provided on the outer side of the cable connection outer sheath (1); The feature is that: a concave outer groove (10) is provided on the outer side of the outer connecting metal sleeve (7), a connecting external thread (11) is provided in the concave outer groove (10), an outer movable connecting ring (13) is provided on the outer side of the connecting external thread (11), a telescopic connecting layer (14) is provided on the side of the outer movable connecting ring (13), and an inner airbag ring (12) is provided on the inner side of the outer connecting metal sleeve (7).

2. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 1, characterized in that: The outer movable connecting ring (13) has a textured surface on its outer side, and the inner side of the outer movable connecting ring (13) has an internal thread that matches the connecting external thread (11).

3. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 1, characterized in that: The external connecting metal sleeve (7) is provided with a side connecting threaded post (9) at the side position, and the side connecting threaded post (9) and the external connecting metal sleeve (7) are an integral structure.

4. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 3, characterized in that: A rotating connection knob (8) is provided on the outer side of the side connecting threaded post (9). The outer side of the rotating connection knob (8) is an octagonal structure, and the inner side of the rotating connection knob (8) is provided with a threaded groove that matches the side connecting threaded post (9).

5. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 1, characterized in that: The cable connection outer sheath (1) is made of polytetrafluoroethylene material, and ceramic micro powder is doped into the material of the cable connection outer sheath (1).

6. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 1, characterized in that: The cable connection outer sheath (1) has an inner braided layer 1 (2) at the inner side, an inner braided layer 2 (3) at the inner side, and an inner aluminum foil layer (4) at the inner side.

7. The radio frequency coaxial cable with a high-temperature resistant and oxidation-resistant composite coating according to claim 6, characterized in that: An internal insulating layer (5) is provided on the inner side of the internal braided layer (3), and an inner copper conductor layer (6) is provided in the middle of the internal insulating layer (5).

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