Airborne antenna anti-loosening device and UAV

Abstract

This application relates to the field of unmanned aerial vehicle (UAV) technology, providing an airborne antenna anti-loosening device and a UAV. The airborne antenna anti-loosening device includes: an antenna mounting body; a ball-head plunger, one end of which has an external thread and is fixedly connected to the threaded connection hole of the antenna mounting body via the external thread; the other end of the ball-head plunger has a retractable sphere, the sphere protruding from the surface of the antenna mounting body; an antenna adapter, fixedly connected to the antenna mounting body; an antenna column, one end of which is threadedly connected to the antenna adapter; an antenna locking ring, which is sleeved on the outer circumference of the antenna column, and the bottom of the antenna locking ring has a hemispherical groove that mates with the sphere of the ball-head plunger; and a locking screw, which passes through the antenna locking ring and locks the antenna locking ring to the outer circumference of the antenna column. This application achieves multiple functions such as reliable anti-loosening, quick disassembly and assembly, and precise positioning through the coordinated cooperation of the ball-head plunger, the antenna locking ring, and the antenna module.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to an airborne antenna anti-loosening device and a UAV. Background Technology

[0002] Currently, traditional airborne antenna installation methods mostly use threaded connections with rubber pads for anti-loosening. While this method is widely used, it has significant drawbacks. During UAV flight, the fuselage experiences continuous high-frequency vibrations and shocks. Relying solely on the friction of the rubber pads for anti-loosening is ineffective. The rubber pads are prone to aging, deformation, and even failure under long-term vibration and alternating hot and cold environments, causing the antenna to gradually loosen during use. This severely affects the quality of antenna signal reception and transmission, thereby jeopardizing communication and flight safety. Furthermore, some existing antenna installation structures use multiple sets of bolts and nuts for rigid locking to achieve reliable anti-loosening. While this can prevent loosening to some extent, such structures are extremely inconvenient to assemble and disassemble. When antenna maintenance, repair, or replacement is required, multiple sets of fasteners must be disassembled one by one with tools, which is cumbersome, inefficient, and prevents rapid assembly and disassembly. This problem is particularly pronounced in airborne environments where space is limited and operations are restricted. Utility Model Content

[0003] This application aims to at least solve the technical problems in the related art, where, after the initial installation of a traditional airborne antenna, the original positioning reference and anti-loosening structure are destroyed during subsequent disassembly, requiring readjustment of the locking position during reinstallation, making it impossible to form an effective positioning reference and achieve effective anti-loosening, thus affecting disassembly and assembly efficiency and installation consistency.

[0004] To solve the aforementioned technical problems, this application provides the following: Firstly, this application provides an airborne antenna anti-loosening device, comprising an antenna mounting body, a ball-head plunger, an antenna adapter, an antenna column, an antenna locking ring, and a locking screw. The antenna mounting body has a threaded connection hole. One end of the ball-head plunger has an external thread, and the ball-head plunger is fixedly connected to the threaded connection hole of the antenna mounting body via the external thread. The other end of the ball-head plunger has a retractable sphere, with the sphere protruding from the surface of the antenna mounting body. One end of the antenna adapter is fixedly connected to the antenna mounting body, and the other end of the antenna adapter is threadedly connected to one end of the antenna column. The antenna locking ring is sleeved on the outer circumference of the antenna column. The bottom of the antenna locking ring has a hemispherical groove that mates with the sphere of the ball-head plunger. The locking screw passes through the antenna locking ring and locks the antenna locking ring to the outer circumference of the antenna column. The antenna module consists of an antenna column, an antenna locking ring, and a locking screw. The antenna module is detachably mounted on the antenna mounting body via a threaded connection between the antenna column and the antenna adapter. When the antenna module is tightened in place, the ball of the ball plunger engages with the hemispherical groove of the antenna locking ring to restrict the rotation of the antenna module relative to the antenna mounting body.

[0005] This application provides an airborne antenna anti-loosening device, which achieves multiple functions such as reliable anti-loosening, quick disassembly and assembly, and precise positioning through the coordinated cooperation of the ball plunger, antenna locking ring and antenna module.

[0006] Secondly, this application proposes an unmanned aerial vehicle (UAV) including an airborne antenna anti-loosening device as described above.

[0007] The UAV provided in this application has all the beneficial effects of the airborne antenna anti-loosening device as described above, and will not be elaborated further here.

[0008] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1 This is a schematic diagram of the structure of an airborne antenna anti-loosening device according to an embodiment of this application;

[0011] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional structure of the airborne antenna anti-loosening device in the embodiment shown;

[0012] Figure 3 for Figure 1A schematic diagram of the structure of the antenna mount and antenna adapter in the airborne antenna anti-loosening device of the embodiment shown;

[0013] Figure 4 for Figure 1 A schematic diagram of the antenna module structure in the airborne antenna anti-loosening device of the embodiment shown.

[0014] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0015] 100 Airborne antenna anti-loosening device, 1 Antenna column, 2 Antenna locking ring, 21 First mating boss, 22 Second mating boss, 3 Locking screw, 4 Antenna mounting body, 5 Ball head plunger, 6 Antenna adapter, 7 Antenna module. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0018] The following reference Figures 1 to 4 This application describes an airborne antenna anti-loosening device and a drone provided according to some embodiments of the present application.

[0019] According to the first aspect of this application, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, one embodiment of this application provides an airborne antenna anti-loosening device 100, comprising: an antenna mounting body 4, the antenna mounting body 4 having a threaded connection hole; a ball-head plunger 5, one end of the ball-head plunger 5 having an external thread, the ball-head plunger 5 being fixedly connected to the threaded connection hole of the antenna mounting body 4 through the external thread, the other end of the ball-head plunger 5 having a retractable ball, and the ball portion protruding from the surface of the antenna mounting body 4; an antenna adapter 6, fixedly connected to the antenna mounting body 4; an antenna column 1, one end of the antenna column 1 being threadedly connected to the antenna adapter 6; and an antenna locking ring 2, the antenna locking ring 2 being sleeved on the antenna. The bottom of the antenna locking ring 2 on the outer periphery of the column 1 has a hemispherical groove that mates with the ball of the ball plunger 5. The locking screw 3 passes through the antenna locking ring 2 and locks the antenna locking ring 2 to the outer periphery of the antenna column 1. The antenna column 1, the antenna locking ring 2 and the locking screw 3 together form the antenna module 7. The antenna module 7 is detachably mounted on the antenna mounting body 4 through the threaded connection between the antenna column 1 and the antenna adapter 6. When the antenna module 7 is tightened in place, the ball of the ball plunger 5 is inserted into the hemispherical groove of the antenna locking ring 2 to restrict the rotation of the antenna module 7 relative to the antenna mounting body 4.

[0020] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the airborne antenna anti-loosening device 100 provided in the embodiments of this application includes an antenna mounting body 4, a ball-head plunger 5, an antenna adapter 6, an antenna column 1, an antenna locking ring 2, and a locking screw 3. The antenna mounting body 4 has a threaded connection hole. One end of the ball-head plunger 5 has an external thread, and the ball-head plunger 5 is fixedly connected to the threaded connection hole of the antenna mounting body 4 through the external thread. The other end of the ball-head plunger 5 has a retractable sphere, and the sphere protrudes from the surface of the antenna mounting body 4. One end of the antenna adapter 6 is fixedly connected to the antenna mounting body 4, and the other end of the antenna adapter 6 is threadedly connected to one end of the antenna column 1. The antenna locking ring 2 is sleeved on the outer circumference of the antenna column 1, and the bottom of the antenna locking ring 2 has a hemispherical groove that mates with the sphere of the ball-head plunger 5. The locking screw 3 passes through the antenna locking ring 2 and locks the antenna locking ring 2 to the outer circumference of the antenna column 1. The antenna module 7 consists of the antenna column 1, the antenna locking ring 2, and the locking screw 3. The antenna module 7 is detachably mounted on the antenna mounting body 4 through the threaded connection between the antenna column 1 and the antenna adapter 6. When the antenna module 7 is tightened in place, the ball of the ball plunger 5 is inserted into the hemispherical groove of the antenna locking ring 2 to restrict the rotation of the antenna module 7 relative to the antenna mounting body 4.

[0021] Thus, the airborne antenna anti-loosening device 100 provided in this application fixes the ball-head plunger 5 to the antenna mounting body 4, with its retractable spherical part protruding from the surface. Simultaneously, a hemispherical groove is formed at the bottom of the antenna locking ring 2, which is sleeved on the outer periphery of the antenna column 1. When the antenna module 7 is tightened onto the antenna adapter 6, the ball of the ball-head plunger 5 automatically engages with the hemispherical groove under the action of a spring, forming a mechanical circumferential limiting fit, thereby effectively preventing the antenna module 7 from loosening in the reverse direction. This structure uses the engagement of the ball and the groove to replace the frictional anti-loosening of traditional rubber pads, fundamentally solving the problems of easy aging and unreliable anti-loosening of rubber pads under vibration environments. Furthermore, since the antenna column 1, antenna locking ring 2, and locking screw 3 are pre-assembled into an integrated antenna module 7, subsequent disassembly and assembly do not require loosening the locking screw 3 or adjusting any parts. Simply manually rotating the entire antenna module 7 allows for quick threaded connection or separation from the antenna adapter 6 without the need for any tools, significantly improving maintenance and replacement efficiency. In addition, the moment the sphere is inserted into the groove, it provides a clear tactile feedback and audible feedback, achieving precise installation positioning and ensuring that the circumferential position and tightness of the antenna module 7 remain consistent after each installation, avoiding the tedious operation of repeated calibration.

[0022] Compared with existing technologies, the airborne antenna anti-loosening device 100 provided in this application has the following advantages: First, high reliability of anti-loosening. It replaces the traditional rubber pad friction anti-loosening method by mechanically engaging the retractable ball of the ball-head plunger 5 with the hemispherical groove. The ball, once engaged in the groove, forms a rigid limit, preventing loosening even under continuous high-frequency vibration, fundamentally solving the problem of anti-loosening failure caused by rubber pad aging and deformation. Second, convenient and efficient assembly and disassembly. The antenna column 1, antenna locking ring 2, and locking screw 3 are pre-assembled into an integrated antenna module 7. Subsequent maintenance or antenna replacement does not require disassembling the locking screw 3 or adjusting any parts; simply manually rotating the entire antenna module 7 allows for quick assembly and disassembly without any tools, making it particularly suitable for operation in confined airborne spaces. Third, precise positioning and good installation consistency. The instant the ball engages in the groove provides clear feedback, while simultaneously limiting the circumferential position of the antenna module 7, ensuring that the relative angle and tightening degree between the antenna module 7 and the antenna mounting body 4 are completely consistent after each installation, avoiding deviations caused by repeated installations. Fourth, compact structure and low cost. This device achieves both anti-loosening and quick-release functions using only parts such as the ball plunger 5 and the antenna locking ring 2. It does not require a complex transmission mechanism or additional locking accessories. With fewer parts and a smaller size, it is easy to process, manufacture and assemble, making it suitable for mass production.

[0023] Specifically, currently, traditional airborne antenna installation methods mostly use threaded connections combined with rubber pads for anti-loosening. While this method is widely used, it has significant drawbacks. During flight, the fuselage experiences continuous high-frequency vibrations and shocks. Relying solely on the friction of the rubber pads for anti-loosening is ineffective. The rubber pads are prone to aging, deformation, and even failure under long-term vibration and alternating hot and cold environments, causing the antenna to gradually loosen during use. This severely affects the quality of antenna signal reception and transmission, thereby jeopardizing communication and flight safety. Furthermore, some existing antenna installation structures use multiple sets of bolts and nuts for rigid locking to achieve reliable anti-loosening. While this can prevent loosening to some extent, such structures are extremely inconvenient to assemble and disassemble. When antenna maintenance, repair, or replacement is required, multiple sets of fasteners must be disassembled one by one with tools, which is cumbersome, inefficient, and cannot achieve rapid assembly and disassembly. This problem is particularly pronounced in the confined space and limited operational environment of airborne environments. Simultaneously, existing technologies lack a device that can achieve rapid assembly and disassembly of the entire antenna module while ensuring reliable anti-loosening. After initial installation, some antennas, if subsequently disassembled, have their original positioning references and anti-loosening structures damaged. Reinstallation requires readjusting the locking positions, making it impossible to establish effective positioning and anti-loosening references, further reducing disassembly and assembly efficiency and installation consistency. Therefore, there is an urgent need for an antenna anti-loosening device that can reliably prevent loosening, facilitate rapid disassembly and assembly, and possess positioning capabilities, in order to improve the installation reliability, maintenance convenience, and operational safety of airborne antennas.

[0024] To address the shortcomings of existing technologies, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this application provides an airborne antenna anti-loosening device 100, which achieves multiple functions such as reliable anti-loosening, quick disassembly and assembly, and precise positioning through the coordinated cooperation of the ball-head plunger 5, the antenna locking ring 2, and the antenna module 7. Specifically, in the anti-loosening condition, one end of the ball-head plunger 5 is fixedly connected to the threaded connection hole of the antenna mounting body 4 through an external thread, and the other end of the ball-head plunger 5 is provided with a retractable ball, and the ball part protrudes from the surface of the antenna mounting body 4; the antenna locking ring 2 is sleeved on the outer periphery of the antenna column 1, and its bottom is provided with a hemispherical groove that mates with the ball of the ball-head plunger 5. When the antenna module 7 is screwed into place, the ball of the ball-head plunger 5 is inserted into the hemispherical groove, forming a mechanical limiting fit, effectively preventing the antenna module 7 from being loosened in the opposite direction relative to the antenna mounting body 4, fundamentally overcoming the shortcomings of traditional rubber gasket anti-loosening devices, such as easy aging and poor reliability. In the quick disassembly and assembly condition, the antenna column 1, the antenna locking ring 2, and the locking screw 3 form an integral antenna module 7. For initial installation, first tighten the threads of the antenna column 1 and antenna adapter 6. Then, use the locking screw 3 to detachably fix the antenna locking ring 2 to the outer circumference of the antenna column 1. Adjust the alignment of the hemispherical groove with the ball plunger 5 and then lock it in place. This way, for subsequent maintenance or antenna replacement, there is no need to remove the locking screw 3; simply rotate the entire antenna module 7 to unscrew or re-tighten it from the antenna adapter 6. The entire process requires no tools, enabling quick manual disassembly and assembly, greatly improving the convenience and efficiency of antenna maintenance. In scenarios requiring consistent positioning and installation, the ball of the ball plunger 5 and the hemispherical groove of the antenna locking ring 2 have a one-to-one corresponding fit. After the initial alignment and locking, this fit becomes the reference point for each subsequent installation. When the antenna module 7 is tightened again, the moment the ball engages the groove, a positioning signal is emitted, ensuring consistent tightening and anti-loosening effect for each installation, avoiding installation errors caused by repeated adjustments. In terms of structural optimization design, the antenna locking ring 2 adopts a ring structure with a notch. The two ends of the notch are respectively provided with a first mating boss 21 and a second mating boss 22. A portion of the hemispherical groove is located at the bottom of the first mating boss 21, and the other portion is located at the bottom of the second mating boss 22. The two mating bosses together form a complete hemispherical groove when the locking screw 3 is tightened. This split structure facilitates manufacturing and ensures the fitting accuracy when the sphere is inserted. One end of the antenna adapter 6 passes through the mounting hole of the antenna mounting body 4 and is threadedly connected to the antenna column 1. The other end of the antenna adapter 6 is insulated and fixedly connected to the antenna mounting body 4, and its external thread end is threadedly connected to the internal thread hole of the antenna column 1. The structure is compact and the connection is reliable.

[0025] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 4As shown, the antenna locking ring 2 is a ring structure with a notch. The two ends of the notch are respectively provided with a first docking boss 21 and a second docking boss 22. Both the first docking boss 21 and the second docking boss 22 are provided with locking holes. The locking screw 3 passes through the locking holes on the first docking boss 21 and the second docking boss 22 in sequence to lock the antenna locking ring 2 to the outer periphery of the antenna column 1.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the antenna locking ring 2 is a ring structure with a notch, which breaks the ring structure circumferentially. A first mating boss 21 and a second mating boss 22 are respectively provided at both ends of the notch. Locking holes are provided on both the first mating boss 21 and the second mating boss 22. Locking screws 3 pass through the locking holes on the first mating boss 21 and the second mating boss 22 in sequence, locking the antenna locking ring 2 onto the outer circumference of the antenna column 1. Thus, by adopting a ring structure with a notch, the antenna locking ring 2 can elastically contract or expand under external force, thereby adapting to antenna columns 1 with different outer diameters, reducing the requirements for the machining accuracy of the antenna column 1, and facilitating installation and disassembly. Simultaneously, the locking screws 3 pass through the locking holes on the two mating bosses in sequence. Tightening the locking screws 3 causes the two mating bosses to move closer together, thereby driving the entire antenna locking ring 2 to grip the antenna column 1, achieving a firm and reliable circumferential fixation. After loosening the locking screws 3, the antenna locking ring 2 elastically returns to its original position, allowing easy adjustment of its axial or circumferential position on the antenna column 1. This facilitates the initial calibration of the orientation of the hemispherical groove based on the position of the ball-head plunger 5, providing a precise reference for the subsequent quick disassembly and anti-loosening of the antenna module 7. This structure is simple and compact, easy to adjust, and improves the assembly flexibility and positioning accuracy of the device.

[0027] In some embodiments, optionally, such as Figure 1 and Figure 4 As shown, a portion of the hemispherical groove is located at the bottom of the first mating boss 21, and the other portion of the hemispherical groove is located at the bottom of the second mating boss 22. The first mating boss 21 and the second mating boss 22 together form a complete hemispherical groove when the locking screw 3 is tightened.

[0028] Specifically, such as Figure 1 and Figure 4As shown, a portion of the hemispherical groove is located at the bottom of the first mating boss 21, and the other portion is located at the bottom of the second mating boss 22. When the first and second mating bosses 21 and 22 are locked with the locking screw 3, they together form a complete hemispherical groove. By separately placing the hemispherical groove at the bottom of the two mating bosses, the processing of the groove is simplified. Simple machining methods can be used to form it on the two bosses separately, eliminating the need to process complex blind hole grooves on a high-precision integrated annular structure, thus reducing manufacturing difficulty and cost. Simultaneously, this split structure allows for automatic and precise alignment of the two halves of the groove during the tightening of the locking screw 3, through the mutual approach of the two mating bosses. Even minor machining errors can be compensated for by the locking force, ensuring the fitting accuracy between the hemispherical groove and the ball of the ball-head plunger 5. In addition, when the locking screw 3 is loosened, the two mating bosses separate, and the hemispherical groove also separates. At this time, it is convenient to clean or inspect the inside of the groove, avoiding the problem of difficult-to-clean residue in traditional one-piece grooves, which is conducive to maintaining the reliability and service life of the anti-loosening structure in the long term.

[0029] In some embodiments, optionally, such as Figure 1 and Figure 4 As shown, the hemispherical groove of the antenna locking ring 2 is opened along the radial direction of the antenna locking ring 2.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the hemispherical groove of the antenna locking ring 2 is opened along the radial direction of the antenna locking ring 2. That is, the opening direction of the hemispherical groove points to the center of the antenna locking ring 2, that is, the central axis of the groove is consistent with the radial direction of the antenna locking ring 2. In this way, when the antenna module 7 is screwed into place, the ball of the ball plunger 5 is inserted into the hemispherical groove in the radial direction. The side walls on both sides of the groove can effectively block and limit the ball in the circumferential direction, thereby reliably preventing the antenna module 7 from loosening in the opposite direction relative to the antenna mounting body 4. Compared with the annular groove or arc groove opened in the circumferential direction, the radially opened hemispherical groove has a clear limiting boundary in the circumferential direction. After the ball is inserted, it cannot slide in the circumferential direction, and the limiting effect is more stable and reliable. At the same time, the radial groove has a simple structure, is easy to process and manufacture, and does not easily accumulate debris, which is conducive to maintaining the locking accuracy and anti-loosening performance over a long period of time.

[0031] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, when the ball of the ball plunger 5 is inserted into the hemispherical groove, a limiting fit is formed between the ball plunger 5 and the hemispherical groove to prevent the antenna module 7 from being loosened in the opposite direction relative to the antenna mounting body 4.

[0032] Specifically, such as Figure 2and Figure 3 As shown, when the ball of the ball-head plunger 5 is inserted into the hemispherical groove, a limiting fit is formed between the ball-head plunger 5 and the hemispherical groove to prevent the antenna module 7 from being loosened in the opposite direction relative to the antenna mounting body 4. That is, when the ball is fully inserted into the hemispherical groove under the action of the spring, the inner wall of the groove forms surface or line contact with the surface of the ball, and the sidewall of the groove provides a rigid barrier to the ball in the circumferential direction. When the antenna module 7 is subjected to a reverse rotational torque, i.e., an external force in the direction of loosening, the sidewall of the hemispherical groove near the direction of loosening will press against the ball. Because the ball is supported by the shell of the ball-head plunger 5 and the spring, it cannot come out of the groove or cross the sidewall of the groove, thus interfering in the circumferential direction and effectively preventing the antenna module 7 from continuing to rotate in the opposite direction. At the same time, this limiting fit also has a certain self-locking effect; the greater the loosening torque, the greater the squeezing force of the groove sidewall on the ball, and the greater the anti-loosening resistance, further improving the reliability of the anti-loosening mechanism. Compared with traditional friction-based anti-loosening methods, this mechanical limiting fit has a clear motion constraint relationship, is not affected by temperature changes, material aging, and vibration frequency, and can maintain stable anti-loosening performance in harsh environments such as airborne environments for a long time.

[0033] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the number of ball-head plungers 5 is set to one, and the number of hemispherical grooves of antenna locking ring 2 is set to one. The ball-head plungers 5 and the hemispherical grooves are matched one-to-one.

[0034] Specifically, such as Figure 2 and Figure 3As shown, the number of ball-head plungers 5 is set to one, and the number of hemispherical grooves of the antenna locking ring 2 is set to one, with the ball-head plungers 5 and hemispherical grooves corresponding one-to-one. That is to say, the entire antenna anti-loosening device uses only one ball-head plunger 5 and one matching hemispherical groove, forming a unique pair of snap-fit ​​positions in the circumferential direction. The advantages of this design are: First, during the initial installation and alignment, only one groove needs to be aligned with the ball-head plunger 5, making the operation simple and clear, and avoiding mutual interference or alignment errors that may be caused by multiple mating points; Second, each time the antenna module 7 is rotated for installation, the ball can only be inserted into the groove when it reaches the unique preset circumferential position, and the installer can obtain a clear tactile and audible prompt, ensuring the consistency and accuracy of each installation; Third, the fit between a single ball-head plunger 5 and a single groove is structurally simpler, which helps to reduce processing costs, reduce the number of parts, and improve the assembly efficiency and anti-loosening reliability of the device. Compared to the scheme of setting multiple ball-head plungers 5, this application adopts a single mating point design, which not only satisfies the basic functions of anti-loosening and positioning, but also avoids the problem of jamming or inconsistent insertion caused by the accumulation of processing errors between multiple locking points. It is especially suitable for scenarios such as airborne antennas that have high requirements for size, weight and disassembly efficiency.

[0035] In practical applications, the number of ball-head plungers 5 is set to multiple, and the number of hemispherical grooves of the antenna locking ring 2 is also multiple, with a one-to-one correspondence between the ball-head plungers 5 and the hemispherical grooves. This embodiment only uses one ball-head plunger 5 as an example, but it is not limited to this. It can be selected according to the specific actual use, and will not be listed here.

[0036] In some embodiments, optionally, such as Figure 2 and Figure 4 As shown, the antenna locking ring 2 is detachably fixed to the outer periphery of the antenna column 1 by the locking screw 3, so as to adjust the alignment position of the hemispherical groove relative to the ball head plunger 5 during the initial installation.

[0037] Specifically, such as Figure 2 and Figure 4As shown, the antenna locking ring 2 is detachably fixed to the outer periphery of the antenna column 1 by the locking screw 3, so as to adjust the alignment of the hemispherical groove with the ball-head plunger 5 during initial installation. That is, during the initial assembly process, the antenna column 1 is first screwed onto the antenna adapter 6, then the antenna locking ring 2 is placed on the outer periphery of the antenna column 1, and the antenna locking ring 2 is rotated to precisely align the hemispherical groove at its bottom with the ball of the ball-head plunger 5. After accurate alignment, the locking screw 3 is tightened to firmly lock the antenna locking ring 2 onto the antenna column 1. In this way, an adjustable fixed connection is formed between the antenna locking ring 2 and the antenna column 1, which ensures that the locking ring will not slide relative to the antenna column 1 during subsequent use, and allows for calibration according to the actual position during initial installation. This adjustment function allows for compensation even if the circumferential stopping position of the antenna column 1 deviates due to machining or assembly tolerances after tightening. This is achieved by independently adjusting the angle of the antenna locking ring 2, ensuring that the ball of the ball-head plunger 5 accurately engages in the hemispherical groove. Once the initial calibration and tightening are complete, the relative circumferential position of the antenna locking ring 2 and the antenna column 1 is fixed. Subsequently, during the overall assembly and disassembly of the antenna module 7, the antenna locking ring 2 and the antenna column 1 maintain this reference positional relationship. Each time the coil is tightened to the correct position, the ball automatically engages in the groove, eliminating the need for repeated calibration. This design reduces the precision requirements for component machining, improves assembly tolerance, and provides a stable and reliable reference for subsequent rapid assembly and disassembly.

[0038] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, one end of the antenna adapter 6 is provided with an external thread, and one end of the antenna column 1 is provided with an internal thread hole. The external thread of the antenna adapter 6 passes through the antenna mounting body 4 and is threadedly connected to the internal thread hole of the antenna column 1.

[0039] Specifically, such as Figure 2 and Figure 3As shown, one end of the antenna adapter 6 has an external thread section, and one end of the antenna column 1 has an internal thread hole. The external thread section of the antenna adapter 6 passes through the antenna mounting body 4 and is threadedly connected to the internal thread hole of the antenna column 1. That is, the antenna adapter 6 is mounted on the antenna mounting body 4, and its external thread section extends to one side of the antenna mounting body 4, that is, the side where the antenna column 1 is located. The end of the antenna column 1 has an internal thread hole that matches the external thread section. The two are detachably fixedly connected by thread engagement. The advantages of this design are as follows: First, the antenna adapter 6 and the antenna column 1 are connected by a threaded connection, which is simple in structure, reliable in connection, and does not require additional fasteners, reducing the number of parts. Second, the external thread of the antenna adapter 6 passes through the antenna mounting body 4 and connects to the antenna column 1, allowing the antenna column 1 to directly form a tension force with the antenna adapter 6 during tightening, thereby pressing the end face of the antenna column 1 against the surface of the antenna mounting body 4, ensuring the stability and sealing of the connection. Third, the threaded connection has good self-locking characteristics, combined with the anti-loosening structure of the ball plunger 5 and the hemispherical groove, forming a double anti-loosening guarantee, further improving the reliability of the device in vibration environments. Fourth, this connection method facilitates repeated disassembly and assembly, and the antenna column 1 or the antenna adapter 6 can be replaced separately after the threads wear, reducing maintenance costs. At the same time, the structural layout of the antenna adapter 6 passing through the antenna mounting body 4 makes the axial dimensions of the entire device compact, which is beneficial for arrangement in the limited space of the airborne system.

[0040] In some embodiments, optionally, such as Figure 2 As shown, the antenna mounting body 4 has a through mounting hole, the antenna adapter 6 is inserted into the mounting hole, and the antenna adapter 6 is insulated and fixedly connected to the antenna mounting body 4.

[0041] Specifically, such as Figure 2As shown, one end of the antenna adapter 6 with external threads passes through a pre-set mounting hole on the antenna mount 4, while the other end is insulated and fixed to the antenna mount 4. Specifically, when the antenna mount 4 is made of insulating material such as plastic or composite material, the antenna adapter 6, being a metal part, can be directly inserted into the mounting hole and fixedly connected to the antenna mount 4 by threaded connection or snap-fit. When the antenna mount 4 is made of conductive material such as metal, an insulating layer can be provided between the antenna adapter 6 and the antenna mount 4 to achieve insulation isolation between the two. The insulating layer can take various forms; for example, a layer of insulating adhesive, insulating paint, or insulating sleeve can be coated or bonded to the inner wall of the mounting hole, or an insulating material can be wrapped around the outer periphery of the antenna adapter 6 before connecting and fixing the antenna adapter 6 to the antenna mount 4. In this way, the antenna adapter 6 and the antenna mounting body 4 can achieve an insulated and fixed connection, thereby withstanding large axial tensile forces and torsional loads, ensuring that there will be no relative loosening or displacement between the two under long-term vibration environment. Moreover, the through-type through-type structure means that the two ends of the antenna adapter 6 are located on both sides of the antenna mounting body 4, one side for threaded connection with the antenna column 1, and the other side can be used to connect signal cables or as a limiting structure, resulting in a compact and reasonable layout. Through the above structure, the antenna adapter 6 and the antenna mounting body 4 form a stable whole, providing a reliable connection interface for repeated assembly and disassembly of the antenna module 7.

[0042] According to a second aspect of this application, an unmanned aerial vehicle (UAV) is also proposed, including an airborne antenna anti-loosening device 100 as described in the above embodiments.

[0043] The UAV provided in this application includes the airborne antenna anti-loosening device 100 of the above embodiments, and therefore has all the beneficial effects of the airborne antenna anti-loosening device 100, which will not be repeated here.

[0044] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An in-flight antenna anti-loosening device, characterized by, include: An antenna mounting body, wherein the antenna mounting body is provided with threaded connection holes; A ball-head plunger, one end of which is provided with an external thread, is fixedly connected to the threaded connection hole of the antenna mounting body through the external thread, and the other end of which is provided with a retractable ball, the ball part of which protrudes from the surface of the antenna mounting body; An antenna adapter is fixedly connected to the antenna mounting body; An antenna column, one end of which is threadedly connected to the antenna adapter; An antenna locking ring is sleeved on the outer periphery of the antenna column, and a hemispherical groove is provided at the bottom of the antenna locking ring to cooperate with the ball of the ball-head plunger. A locking screw passes through the antenna locking ring and locks the antenna locking ring to the outer periphery of the antenna column; The antenna module consists of the antenna column, the antenna locking ring, and the locking screw. The antenna module is detachably mounted on the antenna mounting body via a threaded connection between the antenna column and the antenna adapter. When the antenna module is tightened in place, the ball of the ball plunger engages with the hemispherical groove of the antenna locking ring to restrict the rotation of the antenna module relative to the antenna mounting body.

2. The airborne antenna anti-backout device of claim 1, wherein, The antenna locking ring is a ring structure with a notch. The two ends of the notch are respectively provided with a first mating boss and a second mating boss. Both the first mating boss and the second mating boss are provided with locking holes. The locking screw passes through the locking holes on the first mating boss and the second mating boss in sequence to lock the antenna locking ring on the outer periphery of the antenna column.

3. The airborne antenna anti-backout device of claim 2, wherein, A portion of the hemispherical groove is located at the bottom of the first mating boss, and another portion of the hemispherical groove is located at the bottom of the second mating boss. The first mating boss and the second mating boss together form the complete hemispherical groove when the locking screw is tightened.

4. The airborne antenna anti-backout device of Claim 1, wherein, The hemispherical groove of the antenna locking ring is formed along the radial direction of the antenna locking ring.

5. The on-board antenna anti-backout device of claim 1, wherein, When the ball of the ball-head plunger is inserted into the hemispherical groove, a limiting fit is formed between the ball-head plunger and the hemispherical groove to prevent the antenna module from being loosened in the opposite direction relative to the antenna mounting body.

6. The airborne antenna anti-backout device of Claim 1, wherein, The number of ball-head plungers is set to one, and the number of hemispherical grooves of the antenna locking ring is set to one, with the ball-head plungers and the hemispherical grooves corresponding to each other.

7. The airborne antenna anti-backout device of Claim 1, wherein, The antenna locking ring is detachably fixed to the outer periphery of the antenna column by the locking screw, so as to adjust the alignment of the hemispherical groove with respect to the ball plunger during initial installation.

8. The airborne antenna anti-backout device of Claim 1, wherein, One end of the antenna adapter is provided with an external thread, and one end of the antenna column is provided with an internal thread hole. The external thread of the antenna adapter passes through the antenna mounting body and is threadedly connected to the internal thread hole of the antenna column.

9. The airborne antenna anti-backout device of Claim 8, wherein, The antenna mounting body has a through mounting hole, the antenna adapter is inserted into the mounting hole, and the antenna adapter is insulated and fixedly connected to the antenna mounting body.

10. A drone, characterized in that, include: The airborne antenna anti-loosening device as described in any one of claims 1 to 9.

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