A microwave transmission conductor and a microwave transmission device

Abstract

This invention provides a microwave transmission conductor and a microwave transmission device, relating to the field of microwave transmission; it includes: a first conductor, one end of which has a receiving groove and a sealing plate assembly fixedly connected to its end face; a shaped rod, one end of which extends into the receiving groove and is rotatably inserted into the first conductor, with a rolling element provided between the shaped rod and the sealing plate assembly, and a first elastic clamping member providing axial pressure between the shaped rod and the bottom wall of the receiving groove; a first connecting portion provided at the other end of the shaped rod; a rotating sleeve sleeved on the outside of the shaped rod and in circumferential upper limit engagement with the shaped rod; and a rotatable engagement between the rotating sleeve and the end face of the first conductor; a second conductor abutting the end of the rotating sleeve away from the first conductor, and having a second connecting portion provided at its end facing the first conductor; the second connecting portion and the first connecting portion are detachably fixedly connected. This application allows relative rotation between the conductors, effectively absorbing torsional loads and preventing conductor damage due to torsional fatigue.

Description

Technical Field

[0001] This invention relates to the field of microwave transmission, and more specifically, to a microwave transmission conductor and a microwave transmission device. Background Technology

[0002] In microwave transmission equipment, the quality of the connection between conductors directly affects signal transmission efficiency and system stability. Traditional conductor connection methods mainly include flange connections and threaded connections. For threaded connections, it is usually necessary to rotate the two conductors relative to each other to achieve a tight connection.

[0003] However, in practical engineering applications, microwave transmission conductors are often quite long and heavy, making overall rotation very difficult, especially in space-constrained installation environments such as inside equipment cabinets, in narrow cable trays, or at heights. Operators often lack sufficient operating space to rotate the entire conductor segment. Furthermore, after the threaded connection is completed, a rigid, fixed connection is formed between the two conductor segments, preventing relative rotation. When the equipment is subjected to vibration, thermal expansion and contraction due to temperature changes, or accidental pulling of the lines, torsional torque is directly transmitted to the connection points, leading to thread wear, loosening, or even conductor fatigue fracture, severely impacting the reliability of the microwave transmission equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a microwave transmission conductor and a microwave transmission device, which are compact in structure, easy to operate, and allow relative rotation between conductors after connection to adapt to torsional loads.

[0005] This invention is implemented as follows: A microwave transmission conductor, comprising: The first conductor has a receiving groove at one end and a sealing plate assembly fixedly connected to its end face; A shaped rod, one end of which extends into the receiving groove and is rotatably inserted into the first conductor, and a rolling element is provided between the shaped rod and the sealing plate assembly; a first elastic clamping member is provided between the shaped rod and the bottom wall of the receiving groove to apply axial pressure; and a first connecting part is provided at the other end of the shaped rod. A rotating sleeve is fitted over the outside of the irregular rod and engages with the irregular rod in a circumferential upper limit; and the rotating sleeve is rotatably engaged with the end face of the first conductor. The second conductor is connected to the end of the rotating sleeve away from the first conductor, and a second connecting portion is provided at the end of the second conductor facing the first conductor; the second connecting portion is detachably fixedly connected to the first connecting portion.

[0006] Furthermore, the sealing plate assembly includes a first sealing plate and a first sleeve integrally connected to one side of the first sealing plate; the first sealing plate is fixedly connected to the end face of the first conductor; the first sleeve is accommodated inside the receiving groove; the rolling element is embedded in the side wall of the first sleeve; The irregular rod includes a rotating fitting section, a first conical section, an extension section, and a first connecting portion connected sequentially along the axial direction; the rotating fitting section is rotatably inserted through the bottom wall of the receiving groove; the outer diameter of the first conical section is larger than the outer diameter of the rotating fitting section and rolls against the rolling element; the first elastic clamping member is sleeved outside the rotating fitting section and abuts against the bottom wall of the receiving groove and the first conical section.

[0007] Furthermore, the sealing plate assembly includes a first sealing plate, which is fixedly connected to the end face of the first conductor; The irregular rod includes a rotating fitting section, a U-shaped limiting disk, an extension section, and the first connecting part connected sequentially along the axial direction; the rotating fitting section is rotatably inserted through the bottom wall of the receiving groove; the limiting disk is located inside the receiving groove; the rolling element is limited and abuts against the limiting disk and the first sealing plate.

[0008] Furthermore, the second conductor has a mounting groove at one end facing the first conductor, and a limit assembly is fixedly connected to the end face; A connecting rod is inserted through the mounting groove; one end of the connecting rod is provided with an anti-rotation fitting section and is slidably inserted into an anti-rotation hole opened in the bottom wall of the mounting groove; the other end is provided with the second connecting part; A limiting ball and a second elastic clamping member that applies axial pressure to the connecting rod are provided between the connecting rod and the limiting component.

[0009] Furthermore, the limiting component includes a second sealing plate and a second sleeve disposed on one side of the second sealing plate, the second sealing plate being fixedly connected to the end face of the second conductor; the second sleeve being accommodated inside the mounting groove; and the limiting ball being embedded in the side wall of the second sleeve. The connecting rod includes the anti-rotation mating section, the second conical section, and the second connecting part connected sequentially along the axial direction; the second conical section rolls against the limiting ball; the second elastic clamping member is sleeved outside the anti-rotation mating section and abuts against the bottom wall of the mounting groove and the second conical section.

[0010] Furthermore, a limiting component is provided at one end of the second conductor facing the first conductor. The limiting component includes a second sealing plate and a second connecting portion protruding from one side of the second sealing plate. The second sealing plate is fixedly connected to the end face of the second conductor. The second connecting portion faces the first conductor and is adapted to be connected to the first connecting portion.

[0011] Furthermore, a locking rod is radially inserted through the side wall of the rotating sleeve, the locking rod passing through its axial through hole and the irregularly shaped rod, so that the two are circumferentially fixed relative to each other; and / or, The axial through hole of the rotating sleeve is a stepped hole, and the section near the shaped rod is a polygonal hole for sliding engagement with the corresponding polygonal extension on the shaped rod; the section away from the shaped rod is an enlarged diameter hole for accommodating the connection portion between the first connecting part and the second connecting part.

[0012] Furthermore, an auxiliary rolling element is embedded between the rotating sleeve and the first conductor and / or the second conductor.

[0013] Furthermore, the second connecting part is an internally threaded section with an internally threaded interface, and the first connecting part is an externally threaded section that mates with the internally threaded interface.

[0014] A microwave transmission device includes the microwave transmission conductor.

[0015] The beneficial effects of this invention are as follows: The microwave transmission conductor and microwave transmission device obtained by the above design, in use, involve a receiving groove on the first conductor and a fixed sealing plate assembly; a shaped rod rotatably inserted into the first conductor with a rolling element between it and the sealing plate assembly; and a first elastic clamping member applying axial pressure between it and the bottom wall of the receiving groove. This allows the shaped rod to rotate with low friction under continuous pre-tension, eliminating axial clearance and compensating for wear. Furthermore, a rotating sleeve is fitted around the shaped rod and circumferentially limited, with the rotating sleeve rotating in conjunction with the end face of the first conductor. This allows the operator to rotate the shaped rod with only a small rotation of the rotating sleeve, eliminating the need to rotate the entire conductor, thus achieving quick and labor-saving assembly in confined spaces. Simultaneously, the second conductor is connected to the other end of the rotating sleeve and detachably fixed to the first connecting part of the shaped rod via its second connecting part. This allows the first and second conductors to rotate relative to each other after axial locking, effectively absorbing torsional loads, avoiding stress concentration, and preventing conductor damage due to torsional fatigue. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an overall cross-sectional view of the adaptive torsion conductor structure provided in Embodiment 1 of the application; Figure 2 This is a schematic diagram of the irregular rod provided in Embodiment 1 of the application; Figure 3 This is a schematic diagram of the connecting rod provided in Embodiment 1 of the application; Figure 4 This is an overall cross-sectional view of the adaptive torsion conductor structure provided in Embodiment 2 of the application; Figure 5 This is an overall cross-sectional view of the adaptive torsion conductor structure provided in Embodiment 3 of the application; Figure 6 This is a structural schematic diagram of the irregular rod provided in Embodiment 3 of the application; icon: 100-First conductor, 110-Receiving groove, 200-Second conductor, 210-Mounting groove, 211-Anti-rotation hole, 300-Irregular rod, 310-First connecting part, 320-Rotating mating section, 330-First conical section, 340-Limiting plate, 350-Extension section, 400-Sealing plate assembly, 410-Rolling element, 420-First elastic clamping element, 430-First sealing plate, 440-First sleeve, 500-Rotating sleeve, 510-Auxiliary rolling element, 520-Locking rod, 530-First wear-resistant ring, 540-Second wear-resistant ring, 600-Limiting assembly, 610-Second elastic clamping element, 620-Second sealing plate, 630-Second sleeve, 640-Limiting ball, 700-Connecting rod, 710-Anti-rotation mating section, 720-Second conical section, 730-Second connecting part. Detailed Implementation

[0018] Example 1

[0019] Please refer to Figure 1This embodiment provides a microwave transmission conductor, including a first conductor 100, a shaped rod 300, a rotating sleeve 500, and a second conductor 200 that is mated with the first conductor 100 and can rotate relative to it. The first conductor 100 has a receiving groove 110 at one end facing the second conductor 200, and a sealing plate assembly 400 is fixedly connected to its end face. The sealing plate assembly 400 closes the receiving groove 110 and limits the movement of its internal components. One end of the shaped rod 300 passes through the sealing plate assembly 400 and extends into the receiving groove 110. A rolling element 410 is provided between the shaped rod 300 and the sealing plate assembly 400, allowing the shaped rod 300 to rotate relative to the sealing plate assembly 400 with low friction. A first elastic clamping member 420 is provided between the shaped rod 300 and the bottom wall of the receiving groove 110 to apply axial pressure. This elastic clamping member continuously pushes the shaped rod 300 to keep it in close contact with the rolling element 410, eliminating axial clearance and compensating for machining and assembly errors, thus ensuring smooth rotation during long-term use. A first connecting portion 310 is provided at the other end of the shaped rod 300.

[0020] A rotating sleeve 500 is fitted around the shaped rod 300 and engages with it in a circumferential upper limit, while the rotating sleeve 500 is rotatably engaged with the end face of the first conductor 100. A second conductor 200 abuts against the end of the rotating sleeve 500 away from the first conductor 100, and a second connecting portion 730 is provided at its end facing the first conductor 100; the second connecting portion 730 is detachably and fixedly connected to the first connecting portion 310.

[0021] When the first conductor 100 and the second conductor 200 undergo relative torsion, the shaped rod 300 rotates smoothly relative to the sealing plate assembly 400, absorbing and dissipating the torsional stress without rigidly transmitting it to the connection part, thereby effectively preventing conductor damage due to torsional fatigue. Simultaneously, due to the circumferential limiting fit between the rotating sleeve 500 and the shaped rod 300, the operator only needs to rotate the rotating sleeve 500 to rotate the shaped rod 300, achieving quick locking or unlocking with the second connection part 730. This eliminates the need to rotate the entire bulky conductor section, allowing for easy assembly even in confined spaces.

[0022] In this embodiment, an auxiliary rolling element 510 is also embedded between the end face of the rotating sleeve 500 and the end face of the first conductor 100. The auxiliary rolling element 510 reduces the frictional resistance between the end face of the rotating sleeve 500 and the end face of the first conductor 100, making rotation easier.

[0023] As a preferred circumferential limiting structure, a locking rod 520 is radially inserted through the side wall of the rotating sleeve 500. The locking rod 520 passes through its axial through hole and the irregular rod 300 to fix the two circumferentially. This locking rod 520 connection method has a simple structure, requiring only the insertion of a single pin to reliably transmit torque, and is easy to assemble and disassemble without easily loosening.

[0024] As another circumferential limiting structure, the axial through hole of the rotating sleeve 500 is a stepped hole. The section near the shaped rod 300 is a polygonal hole (e.g., a square or hexagonal hole) for sliding engagement with the corresponding polygonal extension 350 on the shaped rod 300. The section away from the shaped rod 300 is an enlarged diameter hole to accommodate the connection between the first connecting part 310 and the second connecting part 730. The polygonal fit achieves anti-rotation without additional parts while allowing axial sliding for easy assembly and adjustment, and the enlarged diameter hole provides clearance space for the connecting part.

[0025] In this embodiment, the rotating sleeve 500 is preferably an annular sleeve with an I-shaped longitudinal section. Its two end flanges are respectively connected to the end faces of the first conductor 100 and the second conductor 200, and its two end concave surfaces respectively form assembly gaps between the first conductor 100 and the second conductor 200. The I-shaped structure allows the rotating sleeve 500 to form limiting flanges at both ends, preventing axial slippage; the reserved gap can absorb processing and assembly errors, avoiding jamming or incomplete fit due to over-positioning.

[0026] Reference Figure 1 and Figure 2 The sealing plate assembly 400 includes a first sealing plate 430 and a first sleeve 440 integrally connected to one side of the first sealing plate 430; the first sealing plate 430 is fixedly connected to the end face of the first conductor 100; the first sleeve 440 is accommodated inside the receiving groove 110; and the rolling element 410 is embedded in the side wall of the first sleeve 440. The irregular rod 300 includes a rotating mating section 320, a first tapered section 330, an extension section 350, and a first connecting part 310 connected sequentially along the axial direction; the rotating mating section 320 is rotatably inserted through the bottom wall of the receiving groove 110; the outer diameter of the first tapered section 330 is larger than the outer diameter of the rotating mating section 320 and rolls against the rolling element 410; the first elastic clamping member 420 is sleeved outside the rotating mating section 320 and abuts against the bottom wall of the receiving groove 110 and the first tapered section 330.

[0027] In this design, the first sleeve 440 extends into the receiving groove 110. The rolling element 410, embedded in the side wall of the sleeve, rolls in contact with the first conical section 330 of the shaped rod 300. The conical surface forms a line contact with the rolling element 410, resulting in uniform contact stress distribution. The angle of the conical surface allows the rolling element 410 to automatically center itself during rotation, preventing the rod from swaying and further improving rotational stability. The first conical section 330, in conjunction with the rolling element 410, also restricts the axial movement of the shaped rod 300. The first elastic clamping element 420 is sleeved outside the rotating mating section 320, with one end abutting against the bottom wall of the receiving groove 110 and the other end abutting against the first conical section 330, continuously pressing the first conical section 330 against the rolling element 410. This arrangement allows the shaped rod 300 to rotate smoothly around its axis even under axial biasing pressure. The conical structure also has an automatic centering function, ensuring the coaxiality of the shaped rod 300 during rotation.

[0028] Reference Figure 1 and Figure 3 In this embodiment, the second conductor 200 has a mounting groove 210 at one end facing the first conductor 100, and a limiting component 600 is fixedly connected to the end face. A connecting rod 700 passes through the mounting groove 210; one end of the connecting rod 700 is provided with an anti-rotation mating section 710 and is slidably inserted into an anti-rotation hole 211 opened in the bottom wall of the mounting groove 210; the other end is provided with a second connecting part 730. A limiting ball 640 and a second elastic clamping member 610 that applies axial pressure to the connecting rod 700 are provided between the connecting rod 700 and the limiting component 600.

[0029] Based on the rotatable structure on the first conductor 100 side, this design also incorporates a symmetrical rotatable structure on the second conductor 200 side. The connecting rod 700, through the engagement of the anti-rotation fitting section 710 and the anti-rotation hole 211, is non-rotatable within the mounting groove 210 but can slide axially. The inclusion of the limiting ball 640 and the second elastic clamping member 610 ensures that the connecting rod 700 maintains close contact with the limiting ball 640 under axial biasing force, while allowing for some floating relative to the limiting assembly 600. This symmetrical structure further enhances the overall microwave transmission conductor's adaptability to torsion, making it particularly suitable for long-distance laying scenarios where both conductors may twist.

[0030] Furthermore, the limiting component 600 includes a second sealing plate 620 and a second sleeve 630 disposed on one side of the second sealing plate 620. The second sealing plate 620 is fixedly connected to the end face of the second conductor 200. The second sleeve 630 is accommodated inside the mounting groove 210. The limiting ball 640 is embedded in the side wall of the second sleeve 630. The connecting rod 700 includes an anti-rotation mating section 710, a second conical section 720, and a second connecting part 730 connected sequentially along the axial direction. The second conical section 720 rolls against the limiting ball 640, and the two are in line contact with each other. The contact stress is evenly distributed, and the angle of its conical surface causes the limiting ball 640 to generate an automatic centering effect when rotating, preventing the rod from swaying and further improving the rotational stability. At the same time, it can also limit the axial movement of the connecting rod 700. The second elastic clamping member 610 is sleeved outside the anti-rotation mating section 710 and abuts against the bottom wall of the mounting groove 210 and the second conical section 720. The anti-rotation mating section 710 is prismatic (such as a square prism), and the anti-rotation hole 211 is a corresponding prismatic hole. This structure is symmetrical to the side of the first conductor 100. The mating of the prism and the prismatic hole effectively prevents the connecting rod 700 from rotating circumferentially, ensuring the positional stability of the second connecting part 730, while allowing axial sliding to accommodate the floating of the assembly and elastic clamping parts.

[0031] In this embodiment, the second connecting part 730 is an internally threaded section with an internal thread interface, and the first connecting part 310 is an externally threaded section that mates with the internally threaded interface. Threaded connection is a preferred method for achieving detachable fixed connection, providing reliable connection, convenient assembly and disassembly, and the ability to transmit axial tensile force. During the threaded connection process, the continuous axial thrust provided by the elastic clamping members on both sides (the first elastic clamping member 420 and the second elastic clamping member 610) ensures that the thread teeth are always tightly engaged during screwing, eliminating the axial clearance at the initial engagement, preventing thread jamming or free rotation, and ensuring the anti-loosening preload after tightening.

[0032] Specifically, the aforementioned elastic clamping element is a compression spring. After the external thread section of the first connecting part 310 is screwed into the internal thread interface of the second connecting part 730, there is a first reserved gap between its end and the inner bottom wall of the internal thread interface; there are second reserved gaps between the end of the rotating mating section 320 of the shaped rod 300 and the bottom wall of the receiving groove 110 of the first conductor 100, and between the end of the anti-rotation mating section 710 of the connecting rod 700 and the bottom wall of the mounting groove 210 of the second conductor 200. These gaps work together with the first elastic clamping element 420 and the second elastic clamping element 610: on the one hand, they provide a working stroke for the compression deformation of the elastic clamping element, enabling it to continuously apply axial preload; on the other hand, they prevent axial jamming during thread engagement, ensuring that the preload is fully applied to the mating surface of the thread teeth, thereby obtaining a reliable anti-loosening effect. At the same time, these gaps also compensate for axial dimensional errors caused by part machining and assembly, reducing the requirements for the length tolerance of each component.

[0033] The assembly process of this embodiment is as follows: First, the irregular rod 300 is assembled with the sealing plate assembly 400. Then, the sealing plate assembly 400 is fixedly connected to the end face of the first conductor 100 with screws, so that the first tapered section 330 of the irregular rod 300 rolls in contact with the rolling element 410. At this time, the first elastic clamping member 420 is compressed and continuously presses the first tapered section 330 against the rolling element 410, completing the pre-assembly of the first conductor 100 side assembly. Next, the connecting rod 700 is assembled with the limiting assembly 600. Then, the limiting assembly 600 is fixed to the end face of the second conductor 200 with screws, so that the second tapered section 720 of the connecting rod 700 rolls in contact with the limiting ball 640. The anti-rotation mating section 710 of the connecting rod 700 extends into the anti-rotation hole 211 of the second conductor 200. The rotating sleeve 500, which is equipped with an auxiliary rolling element 510, is inserted into the external threaded section of the shaped rod 300, so that one end flange abuts against the end face of the first conductor 100. The circumferential positioning of the rotating sleeve 500 and the shaped rod 300 is achieved by the locking rod 520 or polygonal engagement. Then, the internal threaded interface of the connecting rod 700 is aligned with the external threaded section of the shaped rod 300. The rotating sleeve 500 is rotated to drive the shaped rod 300 to rotate, so that the external threaded section is screwed into the internal threaded interface until the other end flange of the rotating sleeve 500 abuts against the end face of the second conductor 200. At this time, the first connecting part 310 and the second connecting part 730 are fixedly connected, and the first conductor 100 can rotate circumferentially relative to the rotating sleeve 500 and the second conductor 200.

[0034] Example 2

[0035] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that it provides another simplified implementation scheme for the connection structure on the second conductor 200 side.

[0036] In this embodiment, a limiting component 600 is provided at one end of the second conductor 200 facing the first conductor 100. The limiting component 600 includes a second sealing plate 620 and a second connecting portion 730 protruding from one side of the second sealing plate 620. The second sealing plate 620 is fixedly connected to the end face of the second conductor 200. The second connecting portion 730 faces the first conductor 100 and is adapted to be connected to the first connecting portion 310.

[0037] This design eliminates the mounting groove 210, connecting rod 700, and corresponding rolling elements 410 and elastic clamping components, directly connecting to the first connecting part 310 via a second sealing plate 620 with a protruding connecting portion. This design results in a more compact structure, reduced manufacturing costs and assembly complexity. Since the first conductor 100 side already possesses complete adaptive torsional capability, this simplified structure can still effectively absorb most torsional loads.

[0038] In this embodiment, a first wear-resistant ring 530 is provided between the end face of the rotating sleeve 500 and the first conductor 100, and a second wear-resistant ring 540 is provided between the end face of the rotating sleeve 500 and the second conductor 200. An auxiliary rolling element 510 is embedded between the first wear-resistant ring 530 and the first conductor 100 and / or the rotating sleeve 500, and between the second wear-resistant ring 540 and the second conductor 200 and / or the rotating sleeve 500. By combining the wear-resistant ring and the auxiliary rolling element 510, the friction between the rotating sleeve 500 and the conductor end face is further reduced. The wear-resistant ring is made of a wear-resistant and microwave-conductive material (such as beryllium copper alloy), which ensures microwave transmission performance and improves the service life of the structure. The auxiliary rolling element 510 can be a ball or a roller, embedded between the wear-resistant ring and adjacent components, making relative rotation more flexible.

[0039] In this embodiment, the circumferential limiting of the rotating sleeve 500 and the shaped rod 300 employs two methods: a locking rod 520 is used, and the through hole of the rotating sleeve 500 is set as a stepped hole. The section near the shaped rod 300 is a polygonal hole that slides with the corresponding polygonal extension 350 on the shaped rod 300, while the section away from the shaped rod 300 is an enlarged diameter hole. This combination provides a redundant anti-rotation structure, making it particularly suitable for applications requiring high torque.

[0040] The assembly process of this embodiment is as follows: First, the irregular rod 300 is assembled with the sealing plate assembly 400. Then, the sealing plate assembly 400 is fixedly connected to the end face of the first conductor 100 with screws, so that the first tapered section 330 of the irregular rod 300 rolls in contact with the rolling element 410. At this time, the first elastic clamping member 420 is compressed and continuously presses the first tapered section 330 against the rolling element 410, completing the pre-assembly of the first conductor 100 side assembly. Next, the second sealing plate 620 (with internal thread interface) is fixed to the end face of the second conductor 200 with screws. The wear-resistant ring with the embedded auxiliary rolling element 510 is placed on the end face of the first conductor 100. Then, the rotating sleeve 500 is inserted into the external threaded section of the shaped rod 300, so that one end flange abuts against the end face of the first conductor 100. The rotating sleeve 500 and the shaped rod 300 are double circumferentially limited by the sliding fit between the polygonal hole and the polygonal shaft section and the insertion of the locking rod 520. Then, the internal thread interface of the second sealing plate 620 is aligned with the external threaded section of the shaped rod 300. The rotating sleeve 500 is rotated to drive the shaped rod 300 to rotate, so that the external threaded section is screwed into the internal threaded interface until the other end flange of the rotating sleeve 500 abuts against the end face of the second conductor 200, thus completing the docking.

[0041] Example 3

[0042] Reference Figure 5 The difference between this embodiment and embodiment 2 is that another implementation method is provided for the first limiting component 600 and the irregular rod 300.

[0043] In this embodiment, the sealing plate assembly 400 includes a first sealing plate 430, which is fixedly connected to the end face of the first conductor 100, thus eliminating the need for the first sleeve 440.

[0044] Reference Figure 6 The irregular rod 300 includes a rotating mating section 320, a U-shaped limiting disk 340, an extension section 350, and a first connecting part 310 connected sequentially along the axial direction; the rotating mating section 320 is rotatably disposed through the bottom wall of the receiving groove 110; the limiting disk 340 is located inside the receiving groove 110; the rolling element 410 is limited and abuts against the limiting disk 340 and the first sealing plate 430.

[0045] This solution provides an alternative limiting structure, eliminating the first sleeve 440 and replacing it with a U-shaped limiting disc 340. An arc-shaped groove can be provided on the limiting disc 340 to position the rolling element 410. The first rolling element 410 is confined between the U-shaped groove of the limiting disc 340 and the first sealing plate 430, allowing the first conductor 100 to rotate circumferentially relative to the rotating sleeve 500 and the second conductor 200. This structure has fewer parts, is easier to assemble, and is suitable for cost-sensitive applications with high loads.

[0046] In this embodiment, the second conductor 200 side can adopt the symmetrical rotatable structure of Embodiment 1, or the simplified structure of Embodiment 2. The circumferential limit of the rotating sleeve 500 can be any one of the locking rod 520 or polygonal hole.

[0047] The assembly process of this embodiment is as follows: First, the irregular rod 300 is assembled with the first sealing plate 430 assembly (the rolling element 410 is placed between the U-shaped groove of the limiting plate 340 and the first sealing plate 430). Then, the first sealing plate 430 is fixedly connected to the end face of the first conductor 100 with screws, so that the limiting plate 340 of the irregular rod 300 presses the rolling element 410 against the first sealing plate 430 and makes rolling contact. At this time, the first elastic clamping member 420 is compressed and continuously presses the limiting plate 340 against the rolling element 410, completing the pre-assembly of the first conductor 100 side assembly. Next, the corresponding assembly is performed according to the selected second conductor 200 side structure. Then, the rotating sleeve 500 is fitted and limited, and finally the rotating sleeve 500 is rotated to complete the threaded connection. The specific steps are similar to those of Embodiment 1 or Embodiment 2, and will not be repeated here.

[0048] Example 4

[0049] This embodiment also provides a microwave transmission device, such as a microwave signal generator, an antenna feed system, or a radar transceiver unit, which includes the aforementioned microwave transmission conductor. Generally, the microwave transmission conductor is an inner conductor, and an outer conductor is sleeved around it. The outer conductor can also be configured as a torsion-resistant structure. During installation and maintenance, operators can complete conductor connection with one hand in confined spaces, and the device can adapt to the torsional deformation of the circuit during use, significantly improving the reliability and service life of the device.

[0050] The microwave transmission conductor and microwave transmission equipment provided by this invention have a compact structure, are easy to operate, and have strong torsional adaptability. They can be widely used in microwave communication base stations, radar systems, satellite ground stations, instruments and meters, and other occasions that require high-frequency signal transmission and need to be frequently disassembled or subjected to torsional loads.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A microwave transmission conductor, characterized in that, include: The first conductor has a receiving groove at one end and a sealing plate assembly fixedly connected to its end face; A shaped rod, one end of which extends into the receiving groove and is rotatably inserted into the first conductor, and a rolling element is provided between the shaped rod and the sealing plate assembly; a first elastic clamping member is provided between the shaped rod and the bottom wall of the receiving groove to apply axial pressure; and a first connecting part is provided at the other end of the shaped rod. A rotating sleeve is fitted over the outside of the irregular rod and engages with the irregular rod in a circumferential upper limit; and the rotating sleeve is rotatably engaged with the end face of the first conductor. The second conductor is connected to the end of the rotating sleeve away from the first conductor, and a second connecting portion is provided at the end of the second conductor facing the first conductor; the second connecting portion is detachably fixedly connected to the first connecting portion.

2. The microwave transmission conductor according to claim 1, characterized in that, The sealing plate assembly includes a first sealing plate and a first sleeve integrally connected to one side of the first sealing plate; the first sealing plate is fixedly connected to the end face of the first conductor; the first sleeve is accommodated inside the receiving groove; the rolling element is embedded in the side wall of the first sleeve; The irregular rod includes a rotating fitting section, a first conical section, an extension section, and a first connecting portion connected sequentially along the axial direction; the rotating fitting section is rotatably inserted through the bottom wall of the receiving groove; the outer diameter of the first conical section is larger than the outer diameter of the rotating fitting section and rolls against the rolling element; the first elastic clamping member is sleeved outside the rotating fitting section and abuts against the bottom wall of the receiving groove and the first conical section.

3. The microwave transmission conductor according to claim 1, characterized in that, The sealing plate assembly includes a first sealing plate, which is fixedly connected to the end face of the first conductor; The irregular rod includes a rotating fitting section, a U-shaped limiting disk, an extension section, and the first connecting part connected sequentially along the axial direction; the rotating fitting section is rotatably inserted through the bottom wall of the receiving groove; the limiting disk is located inside the receiving groove; the rolling element is limited and abuts against the limiting disk and the first sealing plate.

4. The microwave transmission conductor according to claim 1, characterized in that, The second conductor has a mounting groove at one end facing the first conductor, and a limit assembly is fixedly connected to the end face; A connecting rod is inserted through the mounting groove; one end of the connecting rod is provided with an anti-rotation fitting section and is slidably inserted into an anti-rotation hole opened in the bottom wall of the mounting groove; the other end is provided with the second connecting part; A limiting ball and a second elastic clamping member that applies axial pressure to the connecting rod are provided between the connecting rod and the limiting component.

5. The microwave transmission conductor according to claim 4, characterized in that, The limiting component includes a second sealing plate and a second sleeve disposed on one side of the second sealing plate. The second sealing plate is fixedly connected to the end face of the second conductor. The second sleeve is accommodated inside the mounting groove. The limiting ball is embedded in the side wall of the second sleeve. The connecting rod includes the anti-rotation mating section, the second conical section, and the second connecting part connected sequentially along the axial direction; the second conical section rolls against the limiting ball; the second elastic clamping member is sleeved outside the anti-rotation mating section and abuts against the bottom wall of the mounting groove and the second conical section.

6. The microwave transmission conductor according to claim 1, characterized in that, A limiting component is provided at one end of the second conductor facing the first conductor. The limiting component includes a second sealing plate and a second connecting portion protruding from one side of the second sealing plate. The second sealing plate is fixedly connected to the end face of the second conductor. The second connecting portion faces the first conductor and is adapted to be connected to the first connecting portion.

7. The microwave transmission conductor according to any one of claims 1-6, characterized in that, A locking rod is radially inserted through the side wall of the rotating sleeve, the locking rod passing through its axial through hole and the irregular rod, so that the two are circumferentially fixed relative to each other; and / or, The axial through hole of the rotating sleeve is a stepped hole, and the section near the shaped rod is a polygonal hole for sliding engagement with the corresponding polygonal extension on the shaped rod; the section away from the shaped rod is an enlarged diameter hole for accommodating the connection portion between the first connecting part and the second connecting part.

8. The microwave transmission conductor according to claim 7, characterized in that, An auxiliary rolling element is embedded between the rotating sleeve and the first conductor and / or the second conductor.

9. The microwave transmission conductor according to claim 1, characterized in that, The second connecting part is an internally threaded section with an internally threaded interface, and the first connecting part is an externally threaded section that mates with the internally threaded interface.

10. A microwave transmission device, characterized in that, Includes the microwave transmission conductor as described in any one of claims 1-9.

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