A vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device

Abstract

This invention relates to the field of vehicle-mounted T-BOX antenna technology, and discloses an integrated mounting structure and tuning device for a vehicle-mounted T-BOX antenna. The structure includes a T-BOX main unit mounting housing, on which an antenna module mounting base is fixedly connected. The antenna module mounting base includes a mounting frame and positioning feet fixedly connected to the mounting frame. A quick-locking mechanism is provided inside the mounting frame. The tunable antenna module includes an antenna body cover and a precision tuning transmission mechanism disposed inside the antenna body cover. The quick-locking mechanism includes a locking actuating rod and a locking tongue fixedly connected to the locking actuating rod. The antenna module fixing support includes a support body and a bushing portion disposed on the support body. A locking nut is provided on the outer side of the support body, and a first circumferential limiting groove is provided on one side of the first circumferential limiting key. This invention solves the problems of low space utilization efficiency and lack of on-site tuning capability in existing technologies that use separate installation.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted T-BOX antenna technology, specifically to an integrated mounting structure for a vehicle-mounted T-BOX antenna and its tuning device. Background Technology

[0002] With the popularization of vehicle-to-everything (V2X) technology, T-BOX has become a standard feature in modern automobiles, responsible for wireless data communication between the vehicle and a remote server. As a key component of the T-BOX system, the antenna's installation location, structural stability, and compatibility with the vehicle environment (i.e., tuning state) directly affect communication quality and reliability.

[0003] In existing technologies, the common practice for installing and tuning automotive T-BOX antennas is to design, manufacture, and install the T-BOX main unit and the antenna as two separate components. The antenna is typically fixed to the roof, fender, or dashboard using a separate bracket and screws. This split structure not only occupies additional interior space and increases wiring length and complexity, but also places higher demands on the overall vehicle design and stamping process because it requires separate openings or reserved mounting positions for the antenna, increasing costs and the potential risk of water leakage. The antenna and T-BOX main unit are usually connected via RF coaxial connectors and cables. On the vehicle assembly line, the T-BOX main unit and antenna need to be installed separately before being plugged in and connected, and the cables secured. This process involves many steps, and manual operation can lead to loose connector connections, excessive cable bending, or insecure fixing, introducing fluctuations in assembly quality and affecting signal transmission stability.

[0004] Most existing antenna structures are fixed, and their electrical parameters (such as resonant frequency) are set at the factory. However, when the antenna is actually installed in different locations on a vehicle (such as on a metal roof, under glass, or inside plastic parts), the surrounding metal environment and the dielectric constant of the glass can significantly change the antenna's ground boundary conditions, causing its actual operating frequency to become detuned and its performance to degrade. Currently, there is a lack of a device that allows for quick and simple mechanical tuning on the assembly line or in the after-sales stage without replacing the antenna hardware. Often, the only solution is to replace the antenna with a different model or adjust the installation position, which is inefficient and has limited effectiveness. Summary of the Invention

[0005] To address the problems in the prior art, this invention provides an integrated mounting structure for a vehicle-mounted T-BOX antenna and its tuning device. This invention is achieved through the following technical solutions.

[0006] A vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device include a T-BOX host mounting housing, an antenna module mounting base fixedly connected to the T-BOX host mounting housing, and a tunable antenna module fixedly connected to the antenna module mounting base. The antenna module mounting base includes a mounting base frame and positioning feet fixedly connected to the mounting base frame. A flexible positioning strip is provided on the inner wall of the mounting base frame. A quick locking mechanism is provided inside the mounting base frame. An antenna module fixing support is installed on the mounting base frame. The tunable antenna module includes an antenna body cover and a precision tuning transmission mechanism disposed inside the antenna body cover, and a rotation tuning locking mechanism is connected to the outside of the precision tuning transmission mechanism. The quick locking mechanism includes a locking actuator rod and a locking tongue fixedly connected to the locking actuator rod. One end of the locking actuator rod is provided with a first return spring. A locking groove is provided on one side of the locking tongue and the locking groove is provided on the antenna module fixing support. The antenna module fixing support includes a support body and a bushing part disposed on the support body. A first circumferential limiting key is connected to the inner wall of the bushing part. A locking nut is disposed on the outer side of the support body. A first circumferential limiting groove is disposed on one side of the first circumferential limiting key and is formed on the outer cover of the antenna body.

[0007] As a preferred embodiment of the present invention, the precision tuning transmission mechanism includes a tuning screw and a transmission adjustment disc disposed on the outside of the tuning screw. A tuning actuator is mounted on the tuning screw, and a limit slide is provided on the tuning actuator.

[0008] As a preferred embodiment of the present invention, the transmission adjustment disc includes an adjustment disc body and a limiting straight groove formed inside the adjustment disc body, and a mating toothed ring is provided at the lower outer end of the adjustment disc body.

[0009] As a preferred embodiment of the present invention, the tuning actuator includes a sliding nut seat and a second circumferential limiting groove formed on the sliding nut seat, and a rotating adjusting disk is provided on the upper side of the sliding nut seat. The lower end of the rotating adjusting disk is connected to a second circumferential limiting key, a limiting pin is provided on the outer side of the rotating adjusting disk, and a tuning metal plate is fixedly connected to the upper end of the rotating adjusting disk.

[0010] As a preferred embodiment of the present invention, the rotation tuning locking mechanism includes a rotation adjustment knob assembly and a transmission gear connected to one end of the rotation adjustment knob assembly, and an unlocking top ring is provided at the other end of the rotation adjustment knob assembly. A second reset spring is connected to the rotation adjustment knob assembly. An angle scale is provided on one side of the rotation adjustment knob assembly and is located on the outer cover of the antenna body. A locking tooth block is provided at the lower end of the rotation adjustment knob assembly.

[0011] As a preferred embodiment of the present invention, the rotary adjustment knob assembly includes a rotary adjustment knob body and a transmission gear ring connected to one end of the rotary adjustment knob body, and an angle marking piece is provided on the outer side of the rotary adjustment knob body, and a locking groove is provided at the lower inner end of the rotary adjustment knob body.

[0012] As a preferred embodiment of the present invention, the first circumferential limiting key is fitted inside the first circumferential limiting groove to limit the rotation of the antenna body cover relative to the antenna module fixing support; preferably, the locking nut is threadedly connected to the antenna body cover to fix the relative rotation between the antenna body cover and the antenna module fixing support.

[0013] In a preferred embodiment of the present invention, the sliding nut seat is threadedly connected to the tuning screw and forms a limiting sliding connection with the limiting slide rod. Based on this, the rotation of the tuning screw can be converted into the up-and-down linear motion of the tuning actuator through the transmission of the sliding nut seat.

[0014] As a preferred embodiment of the present invention, there is a one-to-one correspondence between the locking tooth groove and the locking tooth block, and the two are connected by a snap-fit ​​method.

[0015] As a preferred embodiment of the present invention, the locking tooth groove and the locking tooth block have the same cross-sectional shape, both being isosceles triangles, to facilitate the engagement between the two.

[0016] The present invention has the following beneficial effects: 1. By integrating the T-BOX antenna with the mounting structure and tuning mechanism, the additional mounting brackets, holes and complex wiring caused by the traditional split design are avoided, which significantly reduces the space occupied in the vehicle and reduces the difficulty and cost of vehicle assembly.

[0017] 2. By rotating the tuning component, the antenna resonant frequency can be continuously fine-tuned, effectively addressing the "detuning" problem caused by changes in the installation environment and improving communication stability and signal quality.

[0018] 3. The detachable structure design, which combines snap-fit ​​and threaded fastening, eliminates the need for special tools during installation and disassembly, making the operation simple and quick, which is beneficial to the assembly efficiency of the production line and subsequent maintenance. Furthermore, the combination of multi-level limiting, threaded locking and snap-fit ​​fixing ensures that the antenna will not loosen or shift due to vibration during vehicle operation, guaranteeing long-term reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 : A schematic diagram of the overall structure of this invention; Figure 2 : A cross-sectional structural diagram of the connection between the antenna module mounting base and the tunable antenna module in this invention; Figure 3 This invention Figure 2 Enlarged structural diagram at point A; Figure 4 : A cross-sectional view of the rotary adjustment knob assembly in this invention; Figure 5 : An exploded view of the antenna module mounting base in this invention; Figure 6 This invention Figure 5 Enlarged structural diagram at point B; Figure 7 This invention Figure 5 Enlarged structural diagram at point C; Figure 8 : A schematic diagram of the connection between the rotary adjustment knob assembly and the transmission adjustment disc in this invention; Figure 9 : A cross-sectional structural schematic diagram of the precision tuning transmission mechanism in this invention; Figure 10 : A schematic diagram of the structure of the tuning actuator in this invention.

[0021] The attached figures are labeled as follows: 10. T-BOX main unit mounting casing; 20. Antenna module mounting base; 21. Mounting base frame; 211. Flexible positioning strip; 22. Positioning foot; 23. Quick locking mechanism; 231. Locking actuation rod; 232. Locking tongue; 233. Locking groove; 234. First return spring; 24. Antenna module fixing support; 241. Support body; 242. Bushing part; 243. First circumferential limit key; 244. Locking nut; 245. First circumferential limit groove; 30. Tunable antenna module; 31. Antenna main body cover; 32. Precision tuning transmission mechanism; 321. Tuning screw; 322. Transmission adjustment disc; 3221. Adjustment disc body; 3222. Limiting straight groove; 3223. Mating toothed ring; 323. Limiting slide rod; 324. Tuning actuator seat; 3241. Sliding nut seat; 3242. Second circumferential limiting groove; 3243. Rotating adjustment disc; 3244. Second Circumferential limit key; 3245, limit pin; 3246, tuning metal plate; 33, rotational tuning locking mechanism; 331, rotational adjustment knob assembly; 3311, rotational adjustment knob body; 3312, transmission gear ring; 3313, locking gear groove; 3314, angle indicator plate; 332, transmission gear; 333, second return spring; 334, angle scale; 335, locking gear block; 336, unlocking top ring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 Reference Figures 1-2 and Figures 5-7 As shown in the first embodiment of the present invention, a vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device are provided, including a T-BOX main unit mounting housing 10, an antenna module mounting base 20 fixedly connected to the T-BOX main unit mounting housing 10, and a tunable antenna module 30 fixedly connected to the antenna module mounting base 20; wherein, the antenna module mounting base 20 is fixed to the T-BOX main unit mounting housing 10 by screws and clips to form a stable bearing platform. The T-BOX main unit mounting housing 10 is usually the T-BOX main unit shell or a preset mounting position inside the vehicle, providing structural support and electrical grounding for the entire antenna system.

[0024] The antenna module mounting base 20 includes a mounting base frame 21 and positioning feet 22 fixedly connected to the mounting base frame 21. A flexible positioning strip 211 is provided on the inner wall of the mounting base frame 21. A quick-locking mechanism 23 is provided inside the mounting base frame 21, and an antenna module fixing support 24 is mounted on the mounting base frame 21. The positioning feet 22 are welded or injection molded onto the mounting base frame 21. The quick-locking mechanism 23 is located inside the mounting base frame 21 and engages with the mounting base frame 21 on the antenna module fixing support 24 through a first return spring 234, which is used to quickly lock or release the antenna module fixing support 24, so as to realize the convenient installation and removal of the antenna module.

[0025] The tunable antenna module 30 includes an antenna body cover 31 and a precision tuning transmission mechanism 32 disposed inside the antenna body cover 31, and a rotation tuning locking mechanism 33 is connected to the outside of the precision tuning transmission mechanism 32. The quick-locking mechanism 23 includes a locking actuator 231 and a locking tongue 232 fixedly connected to the locking actuator 231. A first return spring 234 is provided at one end of the locking actuator 231. A locking groove 233 is provided on one side of the locking tongue 232 and is located on the antenna module mounting bracket 24. The locking tongue 232 at one end of the locking actuator 231 is embedded in the locking groove 233 at the bottom of the antenna module mounting bracket 24, locking the antenna module mounting bracket 24 in the installed state to prevent it from falling off. When disassembling, pressing the locking actuator 231 will release it.

[0026] The antenna module fixing support 24 includes a support body 241 and a bushing portion 242 disposed on the support body 241. A first circumferential limiting key 243 is connected to the inner wall of the bushing portion 242. A locking nut 244 is disposed on the outer side of the support body 241. A first circumferential limiting groove 245 is disposed on one side of the first circumferential limiting key 243, and the first circumferential limiting groove 245 is formed on the antenna body cover 31. The bushing portion 242 of the antenna module fixing support 24 is sleeved on the antenna body cover 31 of the tunable antenna module 30. The first circumferential limiting key 243 is inserted into the first circumferential limiting groove 245 on the antenna body cover 31. The bushing portion 242 provides axial support to ensure that the tunable antenna module 30 does not tilt. The first circumferential limiting key 243 cooperates with the first circumferential limiting groove 245 to restrict the antenna body cover 31 to only rotate and prevent positional displacement. Furthermore, the first circumferential limiting key 243 is fitted inside the first circumferential limiting groove 245 to limit the rotation of the antenna body cover 31 relative to the antenna module fixing support 24; preferably, the locking nut 244 is threadedly connected to the antenna body cover 31 to fix the relative rotation between the antenna body cover 31 and the antenna module fixing support 24.

[0027] Example 2 Combination Figures 2-4 and Figures 8-10As shown, this is the second embodiment of the present invention. Based on embodiment 1, the precision tuning transmission mechanism 32 includes a tuning screw 321 and a transmission adjustment disk 322 disposed outside the tuning screw 321. A tuning actuator 324 is mounted on the tuning screw 321, and a limiting slide bar 323 is provided on the tuning actuator 324. The sliding nut seat 3241 of the tuning actuator 324 is provided with an internal thread, which cooperates with the external thread of the tuning screw 321. When the tuning screw 321 is rotated, the tuning actuator 324 moves along the screw axis to achieve precise adjustment of the position of the tuning metal piece 3246. Furthermore, the limiting slide bar 323 is fixedly connected to the inside of the antenna body outer cover 31. By utilizing the limiting sliding of the tuning actuator 324 on the limiting slide bar 323, it is ensured that 324 can move up and down. The transmission adjustment disc 322 includes an adjustment disc body 3221 and a limiting straight groove 3222 formed inside the adjustment disc body 3221. A mating gear ring 3223 is provided at the lower outer side of the adjustment disc body 3221. The adjustment disc body 3221 is rotatably mounted inside the antenna body cover 31 and its rotation is controlled by the connection with the rotation adjustment knob assembly 331 and the transmission gear 332. The limiting straight groove 3222 is evenly distributed in the adjustment disc body 3221 and engages with the tuning actuator 324. The mating gear ring 3223 is fixedly connected to the adjustment disc body 3221 and meshes with the transmission gear 332. The tuning actuator 324 includes a sliding nut seat 3241 and a second circumferential limiting groove 3242 formed on the sliding nut seat 3241. A rotating adjusting disk 3243 is provided on the upper side of the sliding nut seat 3241. A second circumferential limiting key 3244 is connected to the lower end of the rotating adjusting disk 3243. A limiting pin 3245 is provided on the outer side of the rotating adjusting disk 3243. A tuning metal piece 3246 is fixedly connected to the upper end of the rotating adjusting disk 3243. The sliding nut seat 3241 is threadedly connected to the tuning screw 321 and forms a limiting sliding with the limiting slide rod 323. Based on this, the rotation of the tuning screw 321 can be converted into the up-and-down linear motion of the tuning actuator 324 through the transmission of the sliding nut seat 3241; one end of the second circumferential limiting key 3244 is fixed to the rotating adjustment disk 3243, and the other end slides in the second circumferential limiting groove 3242 opened on the sliding nut seat 3241.

[0028] The rotary tuning locking mechanism 33 includes a rotary adjustment knob assembly 331 and a transmission gear 332 connected to one end of the rotary adjustment knob assembly 331. The other end of the rotary adjustment knob assembly 331 is provided with an unlocking top ring 336. A second reset spring 333 is connected to the rotary adjustment knob assembly 331. An angle scale 334 is provided on one side of the rotary adjustment knob assembly 331 and is provided on the antenna body cover 31. A locking tooth block 335 is provided at the lower end of the rotary adjustment knob assembly 331. The rotary adjustment knob assembly 331 includes a rotary adjustment knob body 3311 and a transmission gear ring 3312 connected to one end of the rotary adjustment knob body 3311. An angle marking piece 3314 is provided on the outer side of the rotary adjustment knob body 3311, and a locking groove 3313 is provided at the lower inner end of the rotary adjustment knob body 3311.

[0029] Furthermore, there is a one-to-one correspondence between the locking tooth groove 3313 and the locking tooth block 335, and the two are connected by a snap-fit ​​method; furthermore, the locking tooth groove 3313 and the locking tooth block 335 have the same cross-sectional shape, which is an isosceles triangle, to facilitate the snap-fit ​​connection between the two.

[0030] Example 3 Reference Figures 1-10 As shown, this is the third embodiment of the present invention. Based on embodiments 1 and 2, this embodiment provides the movement process of the device in its working state: the tunable antenna module 30 is installed on the T-BOX host housing 10 through the antenna module mounting base 20, and the tunable antenna module 30 is used to receive signals; during installation or disassembly, the antenna module fixing support 24 can be sleeved in the mounting base frame 21, and is initially positioned by the flexible positioning strip 211 provided in the mounting base frame 21. At the same time, the locking groove 233 will push the locking actuating rod 231 to move, and finally, under the action of the first return spring 234, the locking tongue 232 will engage with the locking groove 233 to fix the antenna module fixing support 24; during disassembly, simply press the locking actuating rod 231 to release the locking tongue 232 from the restriction on the antenna module fixing support 24, and force can be used to pull out the antenna module fixing support 24, thereby completing the installation and disassembly of the tunable antenna module 30.

[0031] When the device needs to be tuned, under normal conditions, the first circumferential limiting groove 245 is fixed to the antenna body cover 31 by a threaded connection. During tuning, the locking nut 244 is rotated to disengage it from the antenna body cover 31, at which point the antenna body cover 31 can be rotated. When the antenna body cover 31 rotates, the tuning screw 321, which is fixedly connected to the antenna module fixing support 24, will not rotate with the rotation of the antenna body cover 31. The tuning actuator 324 is fixed with the position of the transmission adjustment plate 322, so that the tuning screw 321 and the tuning actuator 324 are threadedly connected. With the setting of the limiting slide bar 323, the position of the tuning actuator 324 can be adjusted. Furthermore, by setting the tuning actuator 324, the rotating adjustment disk 3243 can rotate on the sliding nut seat 3241. The second circumferential limit key 3244 limits the rotation in the second circumferential limit groove 3242, providing a limit for the rotation of the rotating adjustment disk 3243. Through the cooperation and sliding of the limit pin 3245 in the limit straight groove 3222, at this time, by rotating the rotating adjustment knob body 3311, the meshing connection between the transmission gear ring 3312, the transmission gear 332 and the cooperating gear ring 3223 is used to make the rotating adjustment knob body 3311 drive the adjustment disk body 3221 to rotate. Then, through the limit pin 3245 in the limit straight groove 3222, the rotating adjustment disk 3243 is rotated, which can change the position of the tuning metal piece 3246. Meanwhile, by rotating the unlocking top ring 336, the position of the rotation adjustment knob assembly 331 can be moved using the threaded connection between the unlocking top ring 336 and the antenna body outer cover 31. Lifting the rotation adjustment knob assembly 331 disengages the locking tooth groove 3313 from the locking tooth block 335, allowing for rotation adjustment of the rotation adjustment knob assembly 331. When the unlocking top ring 336 is moved down, the rotation adjustment knob assembly 331 moves downward under the action of the second return spring 333, and the locking tooth groove 3313 and the locking tooth block 335 re-engage and fix, preventing rotation. Furthermore, the movement of the angle indicator piece 3314 in the angle scale 334 can display the rotation angle through the scale, making the result more obvious.

[0032] The tuning principle of the device is as follows: when the tuning metal plate 3246 is moved relative to the fixed antenna radiator by adjustment, the movement of the tuning metal plate 3246 will capacitively couple or change the current distribution at the end of the radiator, thereby effectively changing the effective electrical length or load capacitance of the antenna, and realizing continuous fine adjustment of its resonant frequency.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device, characterized in that: Includes a T-BOX host mounting housing (10), on which an antenna module mounting base (20) is fixedly connected, and on which a tunable antenna module (30) is fixedly connected. The antenna module mounting base (20) includes a mounting base frame (21) and positioning feet (22) fixedly connected to the mounting base frame (21). A flexible positioning strip (211) is provided on the inner wall of the mounting base frame (21). A quick locking mechanism (23) is provided inside the mounting base frame (21). An antenna module fixing support (24) is installed on the mounting base frame (21). The tunable antenna module (30) includes an antenna body cover (31) and a precision tuning transmission mechanism (32) disposed inside the antenna body cover (31), and a rotation tuning locking mechanism (33) is connected to the outside of the precision tuning transmission mechanism (32). The quick locking mechanism (23) includes a locking actuator rod (231) and a locking tongue (232) fixedly connected to the locking actuator rod (231). A first return spring (234) is provided at one end of the locking actuator rod (231). A locking groove (233) is provided on one side of the locking tongue (232), and the locking groove (233) is provided on the antenna module fixing support (24). The antenna module fixing support (24) includes a support body (241) and a bushing (242) provided on the support body (241). A first circumferential limiting key (243) is connected to the inner wall of the bushing (242). A locking nut (244) is provided on the outer side of the support body (241). A first circumferential limiting groove (245) is provided on one side of the first circumferential limiting key (243). The first circumferential limiting groove (245) is opened on the outer cover (31) of the antenna body.

2. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 1, characterized in that: The precision tuning transmission mechanism (32) includes a tuning screw (321) and a transmission adjustment plate (322) disposed on the outside of the tuning screw (321). A tuning actuator (324) is mounted on the tuning screw (321), and a limit slide (323) is provided on the tuning actuator (324).

3. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 2, characterized in that: The transmission adjustment disc (322) includes an adjustment disc body (3221) and a limiting straight groove (3222) opened inside the adjustment disc body (3221), and a mating toothed ring (3223) is provided at the lower outer side of the adjustment disc body (3221).

4. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 2, characterized in that: The tuning actuator (324) includes a sliding nut seat (3241) and a second circumferential limiting groove (3242) formed on the sliding nut seat (3241). A rotating adjustment disk (3243) is provided on the upper side of the sliding nut seat (3241). A second circumferential limiting key (3244) is connected to the lower end of the rotating adjustment disk (3243). A limiting pin (3245) is provided on the outer side of the rotating adjustment disk (3243). A tuning metal plate (3246) is fixedly connected to the upper end of the rotating adjustment disk (3243).

5. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 1, characterized in that: The rotation tuning locking mechanism (33) includes a rotation adjustment knob assembly (331) and a transmission gear (332) connected to one end of the rotation adjustment knob assembly (331). The other end of the rotation adjustment knob assembly (331) is provided with an unlocking top ring (336). A second reset spring (333) is connected to the rotation adjustment knob assembly (331). An angle scale (334) is provided on one side of the rotation adjustment knob assembly (331), and the angle scale (334) is provided on the antenna body cover (31). A locking tooth block (335) is provided at the lower end of the rotation adjustment knob assembly (331).

6. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 5, characterized in that: The rotary adjustment knob assembly (331) includes a rotary adjustment knob body (3311) and a transmission gear ring (3312) connected to one end of the rotary adjustment knob body (3311). An angle marking piece (3314) is provided on the outer side of the rotary adjustment knob body (3311), and a locking groove (3313) is provided at the lower inner end of the rotary adjustment knob body (3311).

7. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 1, characterized in that: The first circumferential limiting key (243) is fitted inside the first circumferential limiting groove (245) to limit the rotation of the antenna body cover (31) relative to the antenna module fixing support (24); preferably, the locking nut (244) is threadedly connected to the antenna body cover (31) to fix the relative rotation between the antenna body cover (31) and the antenna module fixing support (24).

8. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 4, characterized in that: The sliding nut seat (3241) is threadedly connected to the tuning screw (321) and forms a limiting sliding with the limiting slide rod (323). Based on this, the rotation of the tuning screw (321) can be converted into the up-and-down linear motion of the tuning actuator (324) through the transmission of the sliding nut seat (3241).

9. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 6, characterized in that: The locking tooth groove (3313) and the locking tooth block (335) have a one-to-one correspondence and are connected by a snap-fit ​​method.

10. The vehicle-mounted T-BOX antenna integrated mounting structure and its tuning device according to claim 9, characterized in that: The locking tooth groove (3313) and the locking tooth block (335) have the same cross-sectional shape, both being isosceles triangles, to facilitate the engagement between the two.

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