Distributed multi-drive transmission mechanism based on antenna

Abstract

The invention relates to an antenna-based distributed multi-drive transmission mechanism, which comprises a mounting plate, the mounting plate is provided with a mounting plane, an output unit and a gear selection module, the output unit and the gear selection module are mounted on the side of the mounting plane, and the output unit comprises an input end controlled to rotate and an output end moving along a first direction. The gear selecting module comprises a gear selecting rod, a driving rod, a gear selecting gear capable of rotating along with the driving rod and / or moving in the axial direction of the driving rod and a driving sliding block in transmission connection with the gear selecting rod, and the driving sliding block moves in the second direction when the gear selecting rod is controlled to rotate, pushes the gear selecting gear to move in the axial direction and is in transmission connection with the input end of the output unit. According to the distributed multi-drive transmission mechanism, through the structure, the problems that an existing multi-drive transmission mechanism is inflexible in layout, fixed in assembly position and limited in installation are solved, flexible layout and efficient switching in a complex cavity of a multi-band electrically-controlled antenna are achieved, and the space utilization rate and adaptability are improved.

Description

Technical Field

[0001] The present invention relates to a driving transmission mechanism for an antenna, and in particular to an antenna-based distributed multi-driving transmission mechanism. Background Art

[0002] With the rapid development of wireless communication technology and intelligent devices, antenna systems are widely used in various fields. Multi-band electrically steerable antennas, in particular, enable flexible switching and efficient transmission across different frequency bands and have gradually become a mainstream technology in the antenna industry. Multi-band electrically steerable antennas are typically small, compact, and highly integrated, placing higher demands on the layout and drive precision of antenna transmission components to accommodate the complex multi-band switching scenarios.

[0003] In existing technologies, transmission mechanisms used in multi-band electrically adjustable antennas typically utilize multiple drive transmission assemblies. These mechanisms often rely on rigid, fixed connections, resulting in fixed placement of components such as the drive lever, selector lever, and selector gear. This results in inflexible layouts for components like the selector module and output unit. This restricts installation due to the antenna's complex structure, limiting the flexible layout of the antenna transmission mechanism within complex spaces and making it difficult to meet the flexible layout requirements within different antenna cavities. Therefore, a distributed multi-drive transmission mechanism is urgently needed to address these issues. Summary of the Invention

[0004] The object of the present invention is to provide a distributed multi-drive transmission mechanism that enables a gear selection module and an output unit to be flexibly adapted according to the complex layout of an antenna cavity.

[0005] The technical solution adopted by the present invention to solve the above problems is: a distributed multi-drive transmission mechanism based on antennas, comprising:

[0006] A mounting plate, the mounting plate comprising a mounting plane;

[0007] an output unit, the output unit being arranged on the side of the mounting plane, the output unit comprising an output end and an input end with controlled rotation, the output end being configured to move along a first direction when the input end rotates;

[0008] Gear selection module, including:

[0009] a gear selector lever, disposed on the side of the mounting plane, the gear selector lever being controllably rotatable, the gear selector lever being disposed parallel to a second direction, the second direction being perpendicular to the first direction;

[0010] a driving rod, arranged on the side of the mounting plane, the gear selector lever being controlled to rotate, the driving rod being arranged parallel to the gear selector lever;

[0011] a gear selection gear movably sleeved on an outer side of the drive rod, the gear selection gear being configured to rotate with the drive rod and / or move along the axial direction of the drive rod;

[0012] An active slider is connected to the gear selection gear so that the gear selection gear can only rotate relative to the active slider. The active slider is transmission-connected to the gear selection lever. The active slider is configured to move along the second direction when the gear selection lever is controlled to rotate.

[0013] Wherein, when the output unit is in a working state, the gear selection gear moves along the axial direction of the driving rod to be transmission-connected with the input end of the output unit, so that the input end rotates.

[0014] Preferably, the number of the output units is at least two.

[0015] The number of the gear selection gears is at least two.

[0016] The gear selection module further includes:

[0017] a connecting plate connected to the active slider to move synchronously with the active slider;

[0018] At least one driven slider is arranged on the connecting plate to move synchronously with the connecting plate, the driven slider is connected to one of the remaining gear selection gears, the gear selection gear is configured to only be able to rotate relative to the driven slider, and the driven slider is slidably connected to the gear selection rod.

[0019] Preferably, the output unit includes:

[0020] A mounting seat is arranged on the mounting plane, and a first limiting through groove is opened on the mounting seat along the first direction;

[0021] a gear box disposed on the mounting plane, wherein a side of the gear box is provided with an opening communicating with the interior thereof, and a second limiting slot is also provided on the gear box along the first direction and aligned with the first limiting slot;

[0022] a driving screw, wherein the axis of the driving screw is parallel to the first direction, one end of the driving screw is rotatably connected to the mounting seat, and the other end of the driving screw is rotatably connected to the gear box and extends into the interior of the gear box;

[0023] A reversing gear set is arranged inside the gear box, and the reversing gear set includes:

[0024] A driven gear, the driven gear being fixedly connected to one end of the driving screw extending into the gear box, the rotation axis of the driven gear being collinear with the axis of the driving screw;

[0025] a first transmission gear, the first transmission gear being rotatably disposed in the gear box and meshing with the driven gear, the first transmission gear being the input end;

[0026] A connecting piece, drivingly connected to the driving screw;

[0027] A pull rod is fixedly connected to the connecting member, and the pull rod is inserted into the second limiting slot or the first limiting slot, and one end of the pull rod is the output end.

[0028] Preferably, a guide groove is provided in the gear box, and an extending direction of the guide groove is perpendicular to the installation plane and points towards the opening direction.

[0029] The output unit further includes:

[0030] A locking block moves in a controlled manner, the locking block being arranged in the guide groove to move along the extension direction of the guide groove, the locking block being provided with a through groove along the first direction to arrange the driven gear cover inside the through groove, and the inner wall of the through groove being provided with locking teeth to engage with the teeth on the peripheral side of the driven gear when the locking block moves a preset distance toward the opening direction to limit the rotation of the driven gear.

[0031] Preferably, a first protrusion structure is provided on a side of the locking block facing the opening.

[0032] The sides of the active slider and the driven slider are both provided with a second protrusion structure.

[0033] The output unit further includes:

[0034] an elastic member disposed in the gear box and located between an inner wall of the gear box facing the opening and the locking block, so as to apply a thrust toward the opening to the locking block, so that the locking block engages with a circumferential side of the driven gear;

[0035] Wherein, when the output unit is in a working state, the second protrusion structure abuts against the first protrusion structure to apply a thrust to the locking block away from the opening direction, so that the locking block is separated from the driven gear.

[0036] Preferably, a threaded hole is provided on the active sliding block.

[0037] The gear selector comprises:

[0038] a round rod, one end of which is rotatably connected to the mounting plate, and an axis of the round rod is arranged parallel to the second direction;

[0039] A gear selection screw, one end of the gear selection screw is rotatably connected to the mounting plate, the other end of the gear selection screw is fixedly connected to the other end of the round rod, and the axis of the gear selection screw is colinear with the axis of the round rod, and the gear selection screw is threadedly connected to the threaded hole on the active slider to drive the active slider to move along the second direction when the gear selection lever rotates.

[0040] A through hole is provided on the driven sliding block, and the gear selector rod is passed through the through hole.

[0041] Preferably, the driving rod is a polygonal driving rod, and a polygonal through groove is opened at the center of the side of the gear selection gear. The cross-sectional shape and size of the polygonal through groove are adapted to the cross-sectional shape and size of the driving rod, and the polygonal driving rod is inserted into the polygonal through groove.

[0042] Preferably, the distributed multi-drive transmission mechanism further comprises:

[0043] A driving gear, fixedly sleeved on the outer side of the driving rod;

[0044] The second transmission gear is movably sleeved on the outer side of the gear selector lever. The second transmission gear is configured to only rotate relative to the gear selector lever. The second transmission gear is meshed with the driving gear.

[0045] The third transmission gear is fixedly sleeved on the outer side of the gear selector lever.

[0046] A drive control module includes a first drive end for controlled rotation and a second drive end for controlled rotation, the first drive end is provided with a first driving gear, the second drive end is provided with a second driving gear, the first driving gear is engaged with the second transmission gear, and the second driving gear is engaged with the third transmission gear.

[0047] Preferably, the first transmission gear, the second transmission gear and the third transmission gear are all intermediate gears, the axis direction of the first transmission gear is parallel to the second direction, and the axis of the second transmission gear and the axis of the third transmission gear are both collinear with the axis of the gear selector.

[0048] Preferably, a plurality of scale marks are provided on the surface of the pull rod along its extension direction, or a scale is provided at the output end of the pull rod.

[0049] Beneficial effects of the embodiments of the present invention:

[0050] 1. Since the present invention adopts the technical means of arranging the output unit and the gear selection module on the side of the installation plane, the gear selection module can rotate with the driving rod and move along the axial direction of the driving rod through the controlled rotation of the gear selection rod and the linkage between the active slider and the gear selection gear, so that the gear selection gear can not only rotate with the driving rod, but also move along the axial direction of the driving rod, and can be accurately moved to the target position and connected to the input end of the output unit when the output unit is in the working state. Therefore, it effectively solves the technical problems of the prior art that the layout of the multi-drive transmission mechanism is not flexible enough, the fixed position of the components leads to limited installation, and the inability to adapt to complex spaces. It further realizes the technical effect of flexibly arranging the gear selection module and the output unit in the complex cavity of the multi-band electrically adjustable antenna, and efficiently completing the positioning of the gear selection gear and the transmission connection of the output end, thereby improving the space utilization and adaptability of the distributed multi-drive transmission mechanism and meeting the requirements of efficient switching and complex layout of the multi-band antenna.

[0051] 2. Since the present invention adopts a technical means of arranging an output unit and a gear selection module including a gear selection rod, a drive rod, a gear selection gear, an active slider, a connecting plate and at least one driven slider on the side of the installation plane, wherein the active slider drives the driven slider to move synchronously along the axial direction of the drive rod through the connecting plate, so that at least two gear selection gears are respectively connected to the input ends of the corresponding number of output units in a transmission manner, so that the output ends of each corresponding output unit move simultaneously along the first direction. Therefore, it effectively solves the technical problems in the prior art that the layout of the multi-drive transmission mechanism is not flexible enough, the position of the components is fixed, it cannot adapt to the complex cavity arrangement of the antenna, and the multiple output units cannot be switched efficiently at the same time, thereby realizing the technical effects of flexible positioning and efficient switching of multiple gear selection gears between the input ends of different output units, simultaneous controlled transmission of multiple output units, and synchronous switching and precise control of the entire gear selection module in the transmission of multiple output units, thereby improving the layout adaptability, transmission synchronization and switching efficiency of the distributed multi-drive transmission mechanism in the complex application scenarios of multi-band electrically adjustable antennas. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic structural diagram of a distributed multi-drive transmission mechanism proposed in a preferred embodiment of the present invention.

[0053] Figure 2 It is a schematic structural diagram of a distributed multi-drive transmission mechanism with the connecting plates in a separated state, as proposed in a preferred embodiment of the present invention.

[0054] Figure 3 It is a schematic structural diagram of an output unit proposed in a preferred embodiment of the present invention.

[0055] Figure 4 It is a schematic cross-sectional view of an output unit proposed in a preferred embodiment of the present invention.

[0056] Figure 5It is a schematic structural diagram of the gear selection module proposed in a preferred embodiment of the present invention.

[0057] Figure 6 It is a schematic cross-sectional view of a gear selection module proposed in a preferred embodiment of the present invention.

[0058] Wherein: 10, mounting plate; 110, mounting plane; 20, output unit; 210, mounting seat; 211, first limit slot; 220, gear box; 221, second limit slot; 222, guide slot; 223, opening; 230, drive screw; 240, reversing gear set; 241, driven gear; 242, first transmission gear; 250, connecting member; 260, pull rod; 270, locking block; 271, through slot; 272, locking tooth; 273, first cam Starting structure; 280, elastic member; 30, gear selection module; 310, gear selection lever; 311, round rod; 312, gear selection screw; 320, driving rod; 330, gear selection gear; 340, active slider; 350, connecting plate; 360, driven slider; 370, gear selection seat; 40, second protruding structure; 50, driving gear; 60, second transmission gear; 70, third transmission gear; 80, drive control module; 810, first driving gear; 820, second driving gear. DETAILED DESCRIPTION

[0059] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0062] See also Figures 1 to 2 A preferred embodiment of the present application provides a distributed multi-drive transmission mechanism for an antenna, which includes a mounting plate 10, an output unit 20, and a gear selection module 30. The mounting plate 10 includes a mounting plane 110; the output unit 20 is arranged on the side of the mounting plane 110, and the output unit 20 includes an output end and an input end for controlled rotation, and the output end is configured to move along a first direction when the input end rotates; the gear selection module 30 includes a gear selection lever 310, a drive lever 320, a gear selection gear 330, and an active slider 340, wherein the gear selection lever 310 is arranged on the side of the mounting plane 110, the gear selection lever 310 rotates in a controlled manner, and the gear selection lever 310 is arranged parallel to a second direction, and the second direction is perpendicular to the first direction; the drive lever 320 is arranged on the mounting plane On the 110 side, the gear selector 310 rotates in a controlled manner, and the drive rod 320 is arranged parallel to the gear selector 310. The gear selector gear 330 is movably sleeved on the outer side of the drive rod 320. The gear selector gear 330 is configured to rotate with the drive rod 320 and / or move axially along the drive rod 320. The active slider 340 is connected to the gear selector gear 330, so that the gear selector gear 330 can only rotate relative to the active slider 340. The active slider 340 is transmission-connected to the gear selector 310 and is configured to move in the second direction when the gear selector 310 rotates in a controlled manner. When the output unit 20 is in operation, the gear selector gear 330 moves axially along the drive rod 320 to be transmission-connected to the input end of the output unit 20, causing the input end to rotate.

[0063] Specifically, the mounting plate 10 is a one-piece or split structure, and can be made of metal or high-strength composite materials to provide sufficient rigidity and mounting strength. A mounting surface 110 is formed on the mounting plate 10 for securing various components. Mounting surface 110 is typically a rectangular or irregularly shaped surface, and can be flexibly designed based on the internal structure of the antenna housing to accommodate complex installation spaces and antenna layout requirements.

[0064] The output unit 20 is mounted on the mounting plane 110 and includes an output terminal and a controlled rotation input terminal. Specifically, the output terminal can be implemented by converting the rotational motion of the input terminal into linear motion along a first direction via a screw pair, gear pair, or other mechanical transmission components, thereby meeting the displacement and angle adjustment requirements of the antenna mechanism under different operating conditions. The controlled rotation of the input terminal can be implemented via a motor, stepper motor, or servo motor, ensuring the accuracy and responsiveness of the output unit 20 during complex switching processes.

[0065] The gear selection module 30 is arranged on the side of the mounting plane 110, and the gear selection rod 310 is arranged parallel to the second direction and perpendicular to the first direction, so as to achieve precise adjustment orthogonal to the movement direction of the output unit 20. When the gear selection rod 310 is controlled to rotate, the active slider 340 can be driven to slide and adjust in the second direction. The two ends of the gear selection rod 310 can be supported by bearings to achieve low-friction, low-resistance rotation. The drive rod 320 is arranged on the side of the mounting plane 110, parallel to the gear selection rod 310, and is used to support the rotation and axial movement of the gear selection gear 330. The two ends of the drive rod 320 can be connected to the mounting plate 10 through a bearing seat to ensure that the gear selection gear 330 can rotate smoothly on the drive rod 320 and can move flexibly in the axial direction.

[0066] The selector gear 330 is movably mounted on the outside of the drive rod 320 and is capable of rotating with the drive rod 320 and / or sliding along its axial direction to adapt to the input position of different output units 20 and ensure reliable transmission engagement. The selector gear 330 can adopt a helical or straight tooth design to improve transmission smoothness and meshing precision. The selector gear 330 is connected to the active slider 340 via a bearing, allowing only relative rotation between the two sliders. This limits unnecessary degrees of freedom and ensures transmission stability.

[0067] The active slider 340 is connected to the select gear 330 and also forms a transmission connection with the select lever 310. Driven by the select lever 310, the active slider 340 precisely moves in the second direction. To reduce friction, the active slider 340 can be made of metal or engineering plastic, and its contact surfaces can be equipped with rollers, balls, or sliders to enhance smooth movement and positioning accuracy. Limiting structures or buffers can also be installed on both sides of the active slider 340 to mitigate impact during movement and extend its service life.

[0068] In operation, the output unit 20 is driven by the controlled rotation of the input end. The selector lever 310 rotates according to the control signal, driving the active slider 340 to move in the second direction. The active slider 340 then pushes the selector gear 330 to slide axially along the drive rod 320. When the selector gear 330 moves axially to the target position, it achieves efficient transmission engagement with the input end of the corresponding output unit 20, ensuring synchronous rotation of the input end and driving the output end to move in the first direction, thereby achieving flexible switching and precise adjustment of the antenna in different frequency bands. The working process of this distributed multi-drive transmission mechanism is highly coordinated and adaptive, and the movement range and engagement position of the selector gear 330 can be flexibly configured according to the working conditions of different antennas.

[0069] This technical solution is suitable for multi-band electrically adjustable antennas, satellite communication antennas, and other complex antenna systems requiring flexible adjustment of multiple drivers. It operates stably in diverse operating conditions, including high and low temperatures and high humidity, and exhibits excellent environmental adaptability. Its flexible installation methods allow it to be fixed to the antenna housing via bolting, welding, or gluing, ensuring reliable mechanical performance.

[0070] In this embodiment, the output unit 20 and the gear selection module 30 are arranged on the side of the installation plane 110, and the gear selection module 30 is linked with the gear selection gear 330 through the controlled rotation of the gear selection rod 310 and the active slider 340, so that the gear selection gear 330 can rotate with the drive rod 320 and move axially, and can be accurately positioned to engage with the input end of the output unit 20. Therefore, the problems of the inflexible layout of the multi-drive transmission mechanism in the prior art, the limited installation due to the fixed position of the components, and the difficulty in adapting in a complex space are effectively solved, thereby achieving the technical effect of flexibly arranging the gear selection module 30 and the output unit 20 in the complex cavity of the multi-band electrically adjustable antenna, and efficiently completing the precise positioning and efficient transmission connection of the gear selection gear 330, thereby improving the system space utilization, adaptability and transmission switching efficiency, and meeting the efficient switching and complex layout requirements of the multi-band antenna.

[0071] Furthermore, depending on actual application requirements, different numbers of selector gears 330 and output units 20 can be configured to achieve multi-drive, multi-speed switching. The size, shape, and layout of the drive lever 320 and selector lever 310 can also be customized to suit the antenna's internal cavity, ensuring compatibility and transmission accuracy for specific applications. Furthermore, the selector gear 330 in the selector module 30 can be designed with a variety of gear ratios to further optimize the speed and torque matching at the output end, improving overall system performance.

[0072] In order to further improve the transmission flexibility and adaptability of the device in multi-band electrically adjustable antennas, please refer to Figure 2In some embodiments, the number of the output units 20 is at least two, the number of the gear selection gears 330 is at least two, and the gear selection module 30 further includes a connecting plate 350 and at least one driven slider 360, wherein the connecting plate 350 is connected to the active slider 340 to move synchronously with the active slider 340, and each driven slider 360 is arranged on the connecting plate 350 to move synchronously with the connecting plate 350, and the driven slider 360 is connected to one of the remaining gear selection gears 330, and the gear selection gear 330 is configured to only be able to rotate relative to the driven slider 360, and the driven slider 360 is slidably connected to the gear selection lever 310.

[0073] Specifically:

[0074] The connecting plate 350 is made of metal or a high-strength composite material, and its shape can be flexibly designed based on the cavity layout and the arrangement of the multiple output units 20. The connecting plate 350 is fixedly connected to the active slider 340 via fasteners, key connections, or welding, ensuring that when the selector lever 310 rotates to drive the active slider 340 in the second direction, the connecting plate 350 can move synchronously with the active slider 340. In one embodiment, the connecting plate 350 may be provided with multiple mounting seats 210 or guide slots. The driven slider 360 can slide or position within the guide slots or guide rails of the connecting plate 350 to adjust the relative position of the driven slider 360, allowing the driven slider 360 to mate with the input terminals of the output units 20 in different layouts. After position adjustment, the driven slider 360 is securely coupled to the connecting plate 350, allowing it to stably move synchronously with the connecting plate 350 within spatial constraints.

[0075] The rotational connection between the driven slider 360 and the selector gear 330 can be achieved through a spline, keyway, or other structural feature that limits rotational freedom. This connection ensures that the selector gear 330 can both rotate with the drive rod 320 and slide axially along the drive rod 320, accommodating the precise meshing of multiple output units 20 within complex spaces. Each driven slider 360 is slidably connected to the selector rod 310. When the selector rod 310 is controlled to rotate, the active slider 340, connecting plate 350, and each driven slider 360 can all move synchronously in the second direction, driving the selector gear 330 to precisely position itself axially along the drive rod 320 at the input end of the target output unit 20.

[0076] During operation, when the system receives a multi-band antenna switching or positioning instruction, the controller issues an instruction to drive the motor to drive the gear selector 310 to rotate at a preset angle, and the active slider 340 slides smoothly in the guide rail or guide groove along the second direction, while the connecting plate 350 and the driven slider 360 move parallel to the active slider 340 as a whole. The synchronously moving driven slider 360 drives the corresponding gear selector 330 to move axially along the drive rod 320 until the gear selector 330 is accurately aligned with the input end of the target output unit 20, thereby realizing multi-way gear selection and synchronous transmission. The input end of each output unit 20 is controlled to rotate under the transmission engagement of the gear selector 330 on the active slider 340 and each driven slider 360, while the output end realizes synchronous linear movement in the first direction, meeting the requirements of multi-band switching and precise positioning of complex antenna cavities.

[0077] This structure offers excellent scalability and flexibility. The number of output units 20, selector gears 330, and driven sliders 360 can be customized and expanded based on actual needs to accommodate different antenna structures or usage scenarios. The structural dimensions and mounting method of the connecting plate 350 can also be flexibly adjusted to accommodate different cavity layouts and operating conditions. To reduce operational friction, the sliding surfaces of the active and driven sliders 340 and 360 can be coated with engineering plastics or employ roller or ball bearing structures to further enhance operational stability and service life.

[0078] This technical solution is suitable for complex operating environments requiring synchronized switching of multiple output units 20, such as multi-band electrically adjustable antennas and satellite communication antennas. It operates stably under a variety of environmental conditions, including high and low temperatures and high humidity, ensuring synchronized and efficient switching of multiple output units 20, thereby improving system reliability and transmission response speed. In practical applications, the number of output units 20 can be flexibly configured based on the configuration requirements of the components to be driven. It can be a single unit or a distributed configuration with multiple units 20, adapted to multiple target drive locations within the antenna cavity. Each output unit 20 corresponds to an independent gear selector 330, enabling multi-point independent transmission. To ensure accurate switching positioning and synchronized control, the number of active sliders 340, passive sliders 360, and gear selector 330 must meet a one-to-one matching threshold. This means that each gear selector 330 must be connected to at least one active slider 340 or one passive slider 360, achieving axial positioning and rotational linkage through these two sliders.

[0079] In this embodiment, the present invention adopts a technical means of arranging the output unit 20 and the gear selection module 30 including the gear selection rod 310, the driving rod 320, the gear selection gear 330, the active slider 340, the connecting plate 350 and at least one driven slider 360 on the side of the mounting plane 110, wherein the active slider 340 drives the driven slider 360 to move synchronously along the axial direction of the driving rod 320 through the connecting plate 350, so that at least two gear selection gears 330 are respectively connected to the input ends of the corresponding number of output units 20, so that the output ends of the corresponding output units 20 move simultaneously along the first direction. Therefore, It effectively solves the technical problems in the prior art that the layout of the multi-drive transmission mechanism is not flexible enough, the component position is fixed, it cannot adapt to the complex cavity layout of the antenna, and the multiple output units 20 cannot be switched efficiently at the same time, thereby realizing the technical effects of flexible positioning and efficient switching of multiple gear selection gears 330 between the input ends of different output units 20, simultaneous controlled transmission of multiple output units 20, and synchronous switching and precise control of the entire gear selection module 30 in the transmission of multiple output units 20, thereby improving the layout adaptability, transmission synchronization and switching efficiency of the distributed multi-drive transmission mechanism in complex application scenarios of multi-band electrically adjustable antennas.

[0080] It should be noted that the output unit 20 is an independent module, and can be one or more in number. It can be flexibly arranged horizontally within the range covered by the gear selection module 30, and can also be installed vertically with the upper or lower orientation as needed. During operation, when the active slider 340 and / or the driven slider 360 of the gear selection module 30 are paired with the output unit 20, the gear selection gear 330 engages with the reversing gear of the output unit 20, and the drive rod 320 is controlled to rotate, driving the gear selection gear 330 to rotate. The reversing gear set 240 then engages with the drive screw 230, causing the drive screw 230 to rotate, thereby driving the connecting member 250 and the pull rod 260 to perform linear reciprocating motion in the first direction, ultimately achieving the purpose of the pull rod 260 driving the phase shifter to adjust the phase.

[0081] Furthermore, in some embodiments, to enhance transmission adaptability, the pull rod 260 in the output unit 20 need only move parallel to the first direction under drive, without being restricted to a fixed, one-way extension structure. Specifically, the pull rod 260 can freely extend or retract in the forward or reverse direction of the first direction under drive, depending on control requirements. This arrangement not only improves the mechanism's adaptability to spatial constraints but also allows for active retraction based on task requirements, thereby enhancing the dynamic responsiveness and motion precision of the transmission system.

[0082] See also Figures 3 and 4In some embodiments, the output unit 20 includes a mounting seat 210, a gear box 220, a drive screw 230, and a reversing gear set 240. The mounting seat 210 is arranged on the mounting plane 110, and a first limiting groove 211 is provided on the mounting seat 210 along the first direction; the gear box 220 is arranged on the mounting plane 110, and an opening 223 is provided on the side of the gear box 220 that is connected to its own interior, and a second limiting groove 221 is also provided on the gear box 220 along the first direction and aligned with the first limiting groove 211; the axis of the drive screw 230 is parallel to the first direction, one end of the drive screw 230 is rotatably connected to the mounting seat 210, and the other end of the drive screw 230 is rotatably connected to the gear box 220 and extends into the interior of the gear box 220; the reversing gear set 240 is arranged inside the gear box 220, and the reversing gear set 240 is provided inside the gear box 220. The gear set 240 includes a driven gear 241, a first transmission gear 242, a connecting member 250 and a pull rod 260, wherein the driven gear 241 is fixedly connected to one end of the driving screw 230 extending to the inside of the gear box 220, and the rotation axis of the driven gear 241 is colinearly arranged with the axis of the driving screw 230. The first transmission gear 242 is rotatably arranged in the gear box 220 and meshes with the driven gear 241. The first transmission gear 242 is the input end, the connecting member 250 is transmission-connected to the driving screw 230, and the pull rod 260 is fixedly connected to the connecting member 250. The pull rod 260 is passed through the second limiting slot 221 or the first limiting slot 211, and one end of the pull rod 260 is the output end.

[0083] Specifically:

[0084] The mounting base 210 is preferably made of metal or a high-strength alloy material, exhibiting excellent structural rigidity and wear resistance, capable of firmly supporting the output unit 20 and withstanding the mechanical loads during transmission. The mounting base 210 is secured to the mounting plane 110 via bolts or welding. A first limiting slot 211 is defined along a first direction. The length and width of the first limiting slot 211 are predetermined based on the travel and dimensions of the pull rod 260, ensuring that the pull rod 260 is positioned and guided during movement in the first direction.

[0085] The gearbox 220 is also positioned on the mounting plane 110 and can be rectangular or have a special-shaped cavity structure. It is made of high-strength material to provide good sealing and gear meshing stability. An opening 223 is provided on the side of the gearbox 220, which communicates with the interior, to facilitate transmission connection between the gear selector gear 330 and the reversing gear set 240. A second limiting slot 221 is provided on the gearbox 220 along the first direction. This second limiting slot 221 is aligned with the first limiting slot 211 on the mounting base 210, ensuring the linear sliding range of the pull rod 260 in the first direction, thereby improving the positioning accuracy and operating stability of the output unit 20.

[0086] The drive screw 230 is arranged parallel to the first direction, with one end rotatably connected to the mounting base 210 via a bearing or a rotating connector 250. The other end is also rotatably connected to the gear box 220 via a bearing assembly or a shaft end sleeve, and extends inwardly into the interior of the gear box 220. The surface of the drive screw 230 may be provided with a threaded or knurled structure to adapt to the transmission engagement of the external drive or reversing gear set 240 to ensure reliable torque transmission.

[0087] The reversing gear set 240 is mounted within the gearbox 220 and includes a driven gear 241, a first transmission gear 242, a connector 250, and a pull rod 260. The driven gear 241 of the reversing gear set 240 is fixedly connected to the end of the drive screw 230 that extends into the gearbox 220. Their rotational axes are collinear, ensuring that the driven gear 241 rotates synchronously with the drive screw 230. The first transmission gear 242 is rotatably mounted within the gearbox 220 and meshes closely with the teeth of the driven gear 241, forming an efficient reversing and transmission path. The output of the first transmission gear 242 is mounted to the wall of the gearbox 220 via a bearing seat or bushing to ensure rotational stability and low friction.

[0088] Connector 250 is used to convert the rotational motion of drive screw 230 into linear motion of pull rod 260. It is typically securely connected to drive screw 230 via a threaded pair, key connection, or spline structure. Pull rod 260, fixedly connected to connector 250, is generally in the form of a straight rod and can be made of metal or high-strength engineering plastic, exhibiting excellent strength and rigidity. Pull rod 260 is inserted into second limiting slot 221 or first limiting slot 211. During operation, the device is capable of high-precision linear reciprocating motion along a first direction. An output terminal is provided at one end of pull rod 260, enabling reliable transmission and engagement with the moving components or adjustment device of the antenna mechanism.

[0089] In terms of working principle, when the gear selection module 30 controls the gear selection gear 330 to move axially to the input end of the output unit 20, the first transmission gear 242 of the output unit 20 receives the rotational torque as the input end, driving the driven gear 241 to rotate. The drive screw 230 fixedly connected to the driven gear 241 rotates accordingly, and the rotational force is converted into linear movement of the pull rod 260 through the connecting member 250. Under the guidance of the limiting groove, the pull rod 260 reciprocates in a straight line along the first direction to achieve efficient and precise adjustment of the antenna component. Throughout the process, the gears are tightly engaged, the movement is smooth, the transmission efficiency is high, and it can adapt to the multi-band switching requirements in different working environments.

[0090] In this embodiment, an output unit 20 including a mounting base 210, a gear box 220, a drive screw 230 and a reversing gear set 240 is arranged on the side of the mounting plane 110, and the driven gear 241, the first transmission gear 242, the connecting member 250 and the pull rod 260 in the reversing gear set 240 are reasonably coordinated, so that the reciprocating movement of the drive screw 230 and the pull rod 260 in the first direction can achieve efficient transmission. Therefore, the technical problems of unstable transmission, inflexible switching response and difficulty in adapting to complex antenna cavities of the multi-drive transmission mechanism in the prior art are effectively solved, thereby realizing the efficient arrangement of the output unit 20 in the complex cavity and multi-channel synchronous transmission, and improving the adaptability and transmission accuracy of the distributed multi-drive transmission mechanism in the multi-band electrically adjustable antenna.

[0091] In order to prevent the pull rod 260 in the non-target output unit 20 from accidentally moving under the action of external force or its own gravity, the safety and working stability of the system are further improved. Figure 4In some embodiments, a guide slot 222 is defined within the gearbox 220. The guide slot 222 extends perpendicularly to the mounting plane 110 and points toward the opening 223. The output unit 20 further includes a locking block 270 that moves in a controlled manner. The locking block 270 is disposed within the guide slot 222 to move along the extending direction of the guide slot 222. The locking block 270 defines a through slot 271 along the first direction to cover the driven gear 241 within the through slot 271. The through slot 271 has locking teeth 272 formed on its inner wall. When the locking block 270 moves a predetermined distance toward the opening 223, the locking block 270 engages with teeth on the circumference of the driven gear 241 to restrict rotation of the driven gear 241. The locking block 270 is provided with a first protrusion 273 on a side facing the opening 223. The active slider 340 and the driven slider 360 are both provided with a second protrusion 40 on their sides. The output unit 20 further includes an elastic member 280 disposed within the gearbox 220 and located between the inner wall of the gearbox 220 facing the opening 223 and the locking block 270. The elastic member 280 applies a thrust toward the opening 223 to the locking block 270, causing the locking block 270 to engage with the circumference of the driven gear 241. When the output unit 20 is in operation, the second protrusion 40 abuts against the first protrusion 273, applying a thrust away from the opening 223 to the locking block 270, causing the locking block 270 to separate from the driven gear 241.

[0092] The guide groove 222 extends perpendicularly to the mounting plane 110 and points toward the opening 223 of the gear box 220 . The guide groove 222 may be in the shape of a rectangular groove or other guiding shapes, and may provide precise guiding function for the subsequently installed locking block 270 .

[0093] The output unit 20 is provided with a locking block 270, which can be made of metal or high-strength plastic, offering excellent strength and wear resistance. The locking block 270 is positioned within the guide slot 222 and, guided by the guide slot 222, can precisely move in a direction perpendicular to the mounting plane 110 to lock and release the driven gear 241. A through-slot 271 is defined in the locking block 270 along a first direction. The cross-sectional dimensions and shape of the through-slot 271 match the outer shape of the driven gear 241, ensuring that the driven gear 241 is completely contained within the through-slot 271. The inner wall of the through-slot 271 is provided with locking teeth 272, typically in the form of convex teeth or serrated teeth. These teeth engage with the teeth of the driven gear 241 when the locking block 270 moves a predetermined distance toward the opening 223, firmly restricting the rotation of the driven gear 241 and preventing accidental displacement of the non-target pull rod 260 when not in operation.

[0094] The locking block 270 is provided with a first protrusion 273 on the side facing the opening 223 of the gearbox 220. The first protrusion 273 may be cylindrical, wedge-shaped, or in another protruding shape, and cooperates with the second protrusion 40 on the active slider 340 and the driven slider 360. When the output unit 20 is in operation, as the active slider 340 and the driven slider 360 move in the second direction, the second protrusion 40 abuts against the first protrusion 273 of the locking block 270, generating a thrust away from the opening 223. This causes the locking block 270 to move away from the opening 223 along the guide groove 222, disengaging the driven gear 241 and enabling free rotation of the driven gear 241, thereby ensuring smooth engagement of the transmission chain.

[0095] The output unit 20 also includes an elastic member 280, which is located between the inner wall of the opening 223 of the gear box 220 and the locking block 270. The elastic member 280 can be a spring, elastic gasket, or other elastic element. The elastic member 280 provides a continuous thrust toward the opening 223. When not in operation, the locking block 270 automatically moves along the guide groove 222 toward the opening 223 under the force of the elastic member 280. The locking teeth 272 of the locking block 270 mesh with the teeth of the driven gear 241, forming a locked state. This prevents accidental movement of the transmission components within the output unit 20 due to external vibration or gravity.

[0096] During operation of the device, when the gear selection module 30 does not drive the gear selection gear 330 to move to the input end of the output unit 20, the second protrusions 40 of the active slider 340 and the driven slider 360 do not abut the first protrusions 273 of the locking block 270. The elastic force of the elastic member 280 locks the locking block 270 in the locked position, preventing the driven gear 241 from rotating freely, and the output unit 20 is passively locked. When the gear selection module 30 drives the gear selection gear 330 to a precise position, the active slider 340 and the driven slider 360 move accordingly, and the second protrusions 40 abut the first protrusions 273, overcoming the thrust of the elastic member 280, causing the locking block 270 to move along the guide groove 222 away from the opening 223 and disengage from the driven gear 241, unlocking the output unit 20 and ensuring efficient and stable operation of the transmission chain in the working state.

[0097] This technical solution is applicable to multi-band electrically adjustable antennas and other precision devices that require synchronous switching and safety locking of multiple output units 20.

[0098] In this embodiment, a guide groove 222 and a controllably movable locking block 270 are provided in the gear box 220, and reliable engagement with the driven gear 241 is achieved through the through groove 271 and the locking tooth 272 structure of the locking block 270. In combination with the cooperation of the active slider 340, the second protrusion structure 40 of the driven slider 360, the first protrusion structure 273 and the elastic member 280, the locking block 270 can automatically engage and lock the driven gear 241 in the non-working state, and can quickly release the lock in the working state. Therefore, the problem of accidental movement of the pull rod 260 in the non-target output unit 20 in the non-working state due to external force or gravity in the prior art is effectively solved, thereby realizing safe locking and efficient synchronous switching of the multiple output units 20, and ensuring the transmission safety, reliability and flexible adaptability of the distributed multi-drive transmission mechanism in complex application scenarios.

[0099] For further information, see Figure 2 、 Figure 5 and Figure 6 In some embodiments, a threaded hole is defined in the active slider 340 . The gear selector 310 includes a round rod 311 and a gear selector screw 312 . One end of the round rod 311 is rotatably connected to the mounting plate 10 , and the axis of the round rod 311 is parallel to the second direction. One end of the gear selector screw 312 is rotatably connected to the mounting plate 10 , and the other end of the gear selector screw 312 is fixedly connected to the other end of the round rod 311 , with the axis of the gear selector screw 312 and the axis of the round rod 311 being colinear. The gear selector screw 312 is threadedly connected to the threaded hole in the active slider 340 , so that when the gear selector 310 rotates, the active slider 340 is driven to move in the second direction. A through hole is defined in the driven slider 360 , and the gear selector 310 is inserted into the through hole.

[0100] Specifically:

[0101] Active slider 340 is provided with a threaded hole to facilitate engagement with the screw drive of selector lever 310, achieving precise linear movement. Active slider 340 is typically made of metal or a high-strength synthetic material and can be square, rectangular, or other shaped blocks. The threaded hole is provided along the second direction, and the thread size of the inner wall matches the outer diameter and pitch of the selector screw 312, ensuring smooth thread engagement and efficient transmission.

[0102] The shift selector lever 310 includes a round rod 311 and a shift selector screw 312 .

[0103] The round rod 311 is typically made of high-strength steel or aluminum alloy, with one end pivotally connected to the mounting plate 10 via a bearing or pin, ensuring smooth rotation of the round rod 311 about its axis on the mounting plate 10. The axis of the round rod 311 is arranged parallel to the second direction, aligning with the direction of movement of the active slider 340, thereby ensuring the linear motion accuracy of the active slider 340 under controlled driving.

[0104] One end of the selector screw 312 is similarly rotatably connected to the mounting plate 10 via a rotating support, while the other end is securely connected to the other end of the round rod 311 via welding, threads, or a pin. The axes of the selector screw 312 and the round rod 311 are collinear, forming a complete rotation-transmission rod system with excellent mechanical rigidity and transmission stability. The external threads of the selector screw 312 mate with the threaded holes of the active slider 340. When the selector lever 310 rotates about its axis, the screw pair drives the active slider 340 to generate linear movement in the second direction, achieving precise positioning within the selector module 30.

[0105] The structure of the driven slider 360 is relatively simple, yet key components ensure stable transmission and high adaptability. A through-hole is defined within it, extending in the second direction. Its dimensions match the outer diameters of the round rod 311 and the select screw 312, ensuring that the driven slider 360 can slide synchronously in the second direction driven by the select lever 310 without affecting the rotational motion of the select lever 310. In other embodiments, to reduce friction and enhance smooth movement, the inner wall of the through-hole may be finely machined or equipped with guide components such as ball bearings and bushings, depending on actual application requirements.

[0106] In terms of its operating principle, the selector lever 310 rotates under control, causing the selector screw 312 to rotate accordingly. A screw pair converts the rotational motion of the selector screw 312 into linear movement of the active slider 340 in the second direction. The movement of the active slider 340 not only drives its own movement in the second direction but also synchronizes the entire selector module 30 through the connecting plate 350, the driven slider 360, and other components, ensuring that the selector gear 330 is axially positioned along the drive rod 320 to the input end of the target output unit 20. This process, combined with the rotation-to-linear conversion of the gearbox 220 and the drive screw 230, enables efficient switching and reliable transmission of multiple output units 20.

[0107] This technical solution is suitable for multi-band electrically adjustable antennas, satellite communication antennas, and other complex scenarios requiring synchronized switching of multiple output units 20 and high-precision gear selection. It exhibits excellent vibration resistance and high- and low-temperature adaptability. The size, shape, and material of components such as the selector lever 310, active slider 340, and passive slider 360 can be customized to suit different operating environments and travel distances, ensuring maximum transmission synchronization and layout flexibility within limited space.

[0108] In this embodiment, a threaded hole is provided on the active slider 340, and the gear selection rod 310 includes a combined structure of a round rod 311 and a gear selection screw 312, and the rotation of the gear selection rod 310 is converted into a linear movement of the active slider 340 along the second direction by means of a spiral pair engagement, and the driven slider 360 is slidably connected to the gear selection rod 310 through a through hole. Therefore, the problems of low driving accuracy, inflexible layout and inability to efficiently transmit in a limited space of the gear selection module 30 in the prior art are effectively solved, thereby realizing the synchronous movement and efficient positioning of the active slider 340 and the driven slider 360 in the gear selection module 30, and improving the adaptability, switching efficiency and service life of the distributed multi-drive transmission mechanism in the complex cavity of the multi-band electrically adjustable antenna.

[0109] Furthermore, in some embodiments, the drive rod 320 is a polygonal drive rod 320, and a polygonal through groove is opened at the center of the side of the gear selection gear 330. The cross-sectional shape and size of the polygonal through groove are adapted to the cross-sectional shape and size of the drive rod 320, and the polygonal drive rod 320 is inserted into the polygonal through groove.

[0110] Specifically:

[0111] The drive rod 320 utilizes a polygonal structure, ensuring reliable rotational transmission between the select gear 330 and the drive rod 320 during the axial sliding of the select gear 330. The polygonal drive rod 320 is typically made of metal, such as steel, aluminum alloy, or high-strength alloy. The surface may be treated with corrosion protection or hardening to adapt to the complex operating environment of a multi-band electrically adjustable antenna.

[0112] A polygonal through-groove is provided at the center of the side surface of the gear selection gear 330. The through-groove generally extends through the entire thickness of the gear selection gear 330 along the axis of the gear selection gear 330 to form a complete through-hole structure. The cross-sectional shape and size of the polygonal through-groove fully match those of the polygonal drive rod 320. Common polygonal cross-sectional shapes may include square, hexagonal, octagonal or other polygonal shapes, which can be flexibly selected based on the torque transmission requirements and processing technology. The through-groove can be processed using precision processing techniques, such as CNC milling or electrospark machining, to ensure that the clearance with the drive rod 320 is minimized, thereby avoiding loosening or deflection during engagement and improving the transmission reliability of the gear selection gear 330.

[0113] The polygonal drive rod 320 extends axially along the polygonal through-slot of the select gear 330. The cooperation between the through-slot and the drive rod 320 allows the rotational motion of the select gear 330 to be directly transmitted by the drive rod 320, avoiding the keyway clearance or slippage that can occur with conventional circular shaft and key connections. At the same time, this structure still allows the select gear 330 to slide flexibly along the drive rod 320, enabling it to freely switch between the input terminals of the multi-output unit 20, achieving rapid positioning and precise matching of the transmission chain. The direct polygonal meshing transmission between the side of the select gear 330 and the mating surface of the drive rod 320 provides high torque transmission capabilities and resistance to rotational loosening.

[0114] During operation, when the selector lever 310, active slider 340, and other components control the selector gear 330 along the second direction, precisely positioning it at the input of the output unit 20, the polygonal through-groove of the selector gear 330 and the polygonal drive rod 320 achieves efficient rotational drive transmission, ensuring a slip-free and idling transmission chain and stable and reliable rotation of the input of the output unit 20. This entire structure can withstand higher workloads and frequent switching operations in multi-band electrically adjustable antennas or other complex applications, resulting in a longer service life and easier maintenance.

[0115] This technical solution is suitable for antenna systems with multiple output units 20 and multiple selector positions, and is particularly well-suited for applications with limited installation space and high transmission requirements. The size and shape of the polygonal drive rod 320 and the polygonal through-slot can be flexibly designed to suit different antenna cavity layouts, ensuring maximum flexibility and efficient transmission of the selector module 30 in complex spaces.

[0116] In this embodiment, due to the technical means of matching the polygonal driving rod 320 with the polygonal through-groove of the gear selection gear 330, the gear selection gear 330 can not only flexibly move along the axial direction of the driving rod 320, but also achieve stable and efficient rotation transmission connection through polygonal surface contact. Therefore, the problems of loose fit, low transmission efficiency and loose slippage between the gear selection gear 330 and the driving rod 320 in the prior art are effectively solved, thereby achieving the technical effects of efficient transmission, stable rotation and precise switching of the gear selection gear 330 under complex working conditions of the multi-band electrically adjustable antenna, and improving the transmission reliability, adaptability and service life of the distributed multi-drive transmission mechanism.

[0117] See also Figures 1 to 2In some embodiments, the drive gear 50 is fixedly sleeved on the outside of the drive rod 320, and the second transmission gear 60 is movably sleeved on the outside of the gear selection rod 310. The second transmission gear 60 is configured to only rotate relative to the gear selection rod 310. The second transmission gear 60 is engaged with the drive gear 50. The third transmission gear 70 is fixedly sleeved on the outside of the gear selection rod 310. The distributed multi-drive transmission mechanism also includes a drive control module 80. The drive control module 80 includes a first drive end with controlled rotation and a second drive end with controlled rotation. The first drive end is provided with a first driving gear 810, and the second drive end is provided with a second driving gear 820. The first driving gear 810 is engaged with the second transmission gear 60, and the second driving gear 820 is engaged with the third transmission gear 70.

[0118] Specifically:

[0119] The drive gear 50 is fixedly mounted on the outside of the drive rod 320 and reliably transmits the rotational motion of the drive rod 320 to the meshing gears. The drive gear 50 is typically made of high-strength steel or alloy steel, with a hardened surface and anti-corrosion coating to enhance wear resistance and long-term operational stability. The drive gear 50 is secured to the drive rod 320 via a tight fit or spline connection, ensuring complete synchronization of their rotational directions, ensuring reliable transmission and stable output torque.

[0120] The second transmission gear 60 is slidably mounted on the outside of the selector lever 310 and is typically made of high-strength alloy or engineering plastic, offering excellent wear resistance and lightweight properties. The second transmission gear 60 and the selector lever 310 can only rotate relative to each other; that is, it can freely rotate around the selector lever 310 but does not rotate synchronously with it. Supported by structures such as bearings and sleeves, the second transmission gear 60 ensures smooth rotation even under high loads, preventing binding or vibrational transmission failure.

[0121] The second transmission gear 60 directly meshes with the drive gear 50. The tooth profile can be spur, helical, or herringbone, depending on the transmission requirements, to optimize transmission efficiency and meshing stability. This meshing ensures that the rotational torque of the drive lever 320 is reliably transmitted to the second transmission gear 60 circumferentially located on the selector lever 310, providing stable power input for the subsequent synchronous transmission chain.

[0122] The third transmission gear 70 is fixedly mounted on the outside of the gear selector 310, typically adjacent to the second transmission gear 60. It utilizes similar structure and material properties to the second transmission gear 60. The third transmission gear 70 is fixedly connected to the gear selector 310 via a tight fit or keyed connection, ensuring synchronous rotation with the gear selector 310 and enhancing the overall rigidity and rotational synchronization of the transmission chain.

[0123] The drive control module 80 is used to control the rotation of the first drive end and the second drive end simultaneously or individually. The drive control module 80 is specifically embodied as the RCU drive control module 80. The drive control module 80 can integrate a servo motor, a stepper motor or other forms of motor drive devices, and has the ability of high-precision control and high response rate. A first driving gear 810 is provided on the first driving end, which is directly engaged with the second transmission gear 60 to ensure that when the control signal is received, the first driving end can directly drive the rotation of the second transmission gear 60, thereby realizing rapid adjustment of the axial position of the gear selection gear 330. A second driving gear 820 is provided on the second driving end, which is engaged with the third transmission gear 70 to ensure that the second driving end can directly drive the rotation of the gear selection lever 310, thereby realizing the synchronous linear movement of the active slider 340 and the driven slider 360 in the gear selection module 30.

[0124] During operation, the drive control module 80 separately or simultaneously drives the first and second drive ends to rotate according to the antenna system's multi-band switching or adjustment instructions. The first driving gear 810 meshes with the second transmission gear 60, ensuring the axial positioning accuracy and response speed of the selector gear 330. The second driving gear 820 meshes with the third transmission gear 70, ensuring the precise and controlled rotation of the selector lever 310 and the movement of the active slider 340 in the second direction. Through coordinated control of the two drive ends, precise switching and efficient synchronous transmission of the multi-output unit 20 are achieved, ensuring the antenna system's rapid response and high-precision adjustment under complex operating conditions.

[0125] This technical solution is suitable for multi-band electrically adjustable antennas or complex scenarios requiring multi-channel synchronous switching, and has good environmental adaptability. The sizes, materials, and surface treatment processes of the gears, drive rod 320, and selector lever 310 and other components can be flexibly configured according to the cavity and transmission requirements of different antennas, meeting the high adaptability and high-efficiency transmission requirements in diverse scenarios.

[0126] In this embodiment, the driving gear 50 is fixedly sleeved on the outside of the driving rod 320, the second transmission gear 60 is movably sleeved on the outside of the gear selection rod 310 and can only rotate relative to each other, and the first driving gear 810 and the second driving gear 820 are respectively engaged with the second transmission gear 60 and the third transmission gear 70. Therefore, the problems of unstable drive links, poor transmission accuracy and inability to be flexibly arranged in complex cavities in the multi-drive transmission mechanism in the prior art are effectively solved, thereby realizing efficient synchronous switching and precise transmission control of the multiple output units 20, and improving the transmission accuracy, arrangement flexibility and working stability of the distributed multi-drive transmission mechanism.

[0127] For further information, see Figures 5 and 6In some embodiments, the first transmission gear 242, the second transmission gear 60 and the third transmission gear 70 are all intermediate gears, the axis direction of the first transmission gear 242 is parallel to the second direction, and the axis of the second transmission gear 60 and the axis of the third transmission gear 70 are both collinear with the axis of the gear selector 310.

[0128] Specifically:

[0129] The first transmission gear 242, the second transmission gear 60, and the third transmission gear 70 are all designed as intermediate gears, specifically designed to achieve efficient torque and speed transmission and optimal direction conversion within a multi-way transmission chain. Each intermediate gear is typically made of high-strength alloy steel or wear-resistant engineering plastics, and the surface can be quenched or plated to improve wear resistance and service life, adapting to the frequent transmission switching and long-term stable operation of multi-band electrically steerable antenna systems.

[0130] The axis of the first transmission gear 242 is parallel to the second direction. It is typically mounted within the transmission mechanism frame via a bearing block or a rotating support assembly. Serving as an intermediate gear, the first transmission gear 242 ensures stable torque transmission and directional adjustment within the drive train, forming a precisely meshed transmission pair with the drive gear 50 and the second transmission gear 60. This parallel arrangement ensures uniform force distribution and transmission stability for the active slider 340 in the gear selection module 30, which moves in the second direction.

[0131] The axes of the second and third transmission gears 60 and 70 are collinear with the axis of the selector lever 310. This coaxial arrangement ensures continuity and stability in the torque transmission path within the transmission chain. The second transmission gear 60 is movably supported on the outside of the selector lever 310 via bearings or guide sleeves, effectively meshing with the drive gear 50 and the first transmission gear 242, ensuring smooth rotation in response to control signals. The third transmission gear 70 is fixedly mounted on the outside of the selector lever 310 and rotates integrally with the selector lever 310 through a tight fit, completing the power chain from the second drive end to the selector module 30 and enhancing the rigidity and dynamic response of the selector mechanism.

[0132] During operation, the drive control module 80 drives the first and second drive ends to rotate according to control signals. The meshing of the first driving gear 810 and the second transmission gear 60 enables efficient adjustment of the axial positioning of the select gear 330. The meshing of the second driving gear 820 and the third transmission gear 70 enables synchronized and controlled rotation of the select lever 310, thereby driving the active slider 340 and the driven slider 360 in the second direction. The high-precision meshing of the three intermediate gears ensures efficient torque transmission and transmission stability during operation, while also preventing vibration, meshing instability, or reduced efficiency caused by the simultaneous switching of multiple output units 20.

[0133] The size, tooth shape and installation method of each intermediate wheel can be flexibly adjusted according to the internal space and usage requirements of different antennas, ensuring the adaptability and efficient working ability of the system under complex layout conditions.

[0134] In this embodiment, since the first transmission gear 242, the second transmission gear 60 and the third transmission gear 70 are all intermediate gears, and the axial direction of the first transmission gear 242 is parallel to the second direction, and the axes of the second transmission gear 60 and the third transmission gear 70 are all arranged collinearly with the axis of the gear selector 310, the problems of unstable transmission chain, insufficient meshing accuracy and unreliable torque transmission during multi-way drive switching in the prior art are effectively solved, thereby achieving the technical effect of stable synchronous transmission and high-precision multi-way switching of the distributed multi-drive transmission mechanism in a complex cavity, and comprehensively improving the working reliability, adaptability and service life of the system.

[0135] See also Figure 1 、 Figure 2 、 Figure 5 and Figure 6 In some embodiments, the gear selection module 30 further includes two gear selection seats 370, which are arranged on the side of the mounting plane 110, and the two gear selection seats 370 are respectively located at the two ends of the gear selection rod 310, and the two ends of the gear selection rod 310 are rotatably connected to the two gear selection seats 370, and the two ends of the driving rod 320 are rotatably connected to the two gear selection seats 370.

[0136] Specifically:

[0137] The gear selection module 30 also includes two gear selection seats 370. These seats are symmetrically or parallelly arranged on one side of the mounting plane 110. They are typically made of metal or high-strength alloy materials, offering excellent rigidity and wear resistance. Their shape and size can be flexibly designed to suit different installation spaces, depending on the antenna cavity structure. The gear selection seats 370 are securely connected to the mounting plane 110 via bolts, welding, or other mechanical fastening methods, ensuring stable support and shock resistance during long-term use.

[0138] Two selector seats 370 are located at either end of the selector lever 310. These two ends are rotatably connected to the selector seats 370 via rotating connectors 250 or bearings. This connection ensures smooth rotation of the selector lever 310 around its axis under external force or drive, reducing frictional resistance and enhancing the flexibility and stability of the selector lever 310's rotation. Rotation of the selector lever 310, via a screw pair or other transmission mechanism, drives the active slider 340 to achieve linear movement in the second direction, ensuring efficient response and precise adjustment of the selector module 30 when operating the multi-band antenna.

[0139] At the same time, both ends of the drive rod 320 are also rotatably connected to the two selector seats 370. The drive rod 320 is well supported for rotation within the selector seats 370 through bearings, a rotating sleeve, and other components, ensuring that it can rotate about its own axis, thereby achieving rotational transmission or axial movement of the selector gear 330. This support layout for the drive rod 320 not only ensures the stability required for rotational motion but also cooperates with the controlled rotation of the selector lever 310 to ensure the precise positioning and reliable engagement of the selector gear 330.

[0140] During operation, the controlled rotation of the gear selector lever 310, driven by the control module, causes the active slider 340 to precisely slide in the second direction. Simultaneously, the drive lever 320, through engagement with the drive gear 50 or the active gear, ensures the flexible axial movement and rotational transmission of the gear selector gear 330. The two gear selector seats 370 not only provide rotational support but also limit radial displacement and reduce vibration, ensuring smooth, precise, and reliable operation of the entire gear selector module 30.

[0141] The size, material and installation method of the two gear selector seats 370 can be flexibly adjusted according to different antenna cavity layouts and transmission working conditions to ensure the transmission synchronization and long-term working reliability of the entire device.

[0142] In this embodiment, due to the technical means of arranging two gear selection seats 370 on the side of the installation plane 110, and the two gear selection seats 370 are respectively located at the two ends of the gear selection rod 310, and form a stable rotation connection with the gear selection rod 310 and the drive rod 320, the problems of inflexible arrangement of the gear selection module 30, insufficient support stability and poor transmission reliability in the prior art are effectively solved, thereby achieving the technical effect of flexible installation of the gear selection module 30 in a complex space and high-precision multi-channel transmission, and significantly improving the space utilization, transmission stability and working accuracy of the distributed multi-drive transmission mechanism in complex applications of multi-band antennas.

[0143] In order to further improve the visualization and accuracy of the output end stroke control, in some embodiments, the surface of the pull rod 260 is provided with a plurality of scale marks along its extension direction or the output end of the pull rod 260 is provided with a ruler.

[0144] Specifically:

[0145] The pull rod 260 in the output unit 20 is provided with several graduated markings along its extension direction. The zero mark of these markings is located at the output end. These markings appear as evenly distributed recessed lines or laser-etched marks, providing a quantitative reference for relative displacement, assisting the operator in determining the current extension position of the pull rod 260 and its historical extension status. The scale units of these markings can be set to millimeters, half-millimeters, or other fine units based on actual application requirements to meet different output accuracy requirements.

[0146] In other optional embodiments, the output end of the pull rod 260 may be provided with a scale structure. The scale may be a rigid bar-shaped scale fixedly connected to the output end, with the zero mark of the scale located at the end near the pull rod 260 and the scale arranged parallel to the pull rod 260. The scale is compared with a reference surface outside the device, allowing the operator to intuitively determine the current extension length of the pull rod 260 without relying on electronic sensors or additional measuring tools.

[0147] In specific applications, when the gear selection module 30 controls the movement of the slider, causing the gear selection gear 330 to mesh with the target output unit 20 and drive the pull rod 260 to reciprocate linearly through the reversing gear, the operator can accurately monitor the extension and retraction stroke of the pull rod 260 by combining the scale marks on the surface of the pull rod 260 or the scale at the output end, and promptly adjust the output of the drive control module 80 to ensure that the displacement of the pull rod 260 meets the accuracy requirements of antenna phase shifting or component pushing. This design is particularly suitable for applications requiring frequent repetitive positioning or small stroke control, and can achieve precise control without the need for complex feedback devices.

[0148] This embodiment adopts the technical means of setting scale marks on the surface of the pull rod 260 or setting a scale at the output end. Therefore, it effectively solves the problem in the prior art that the output displacement of the pull rod 260 is invisible and difficult to accurately control, thereby achieving the technical effect of intuitive monitoring and precise adjustment of the output end extension amount without the assistance of sensors, thereby improving the operational convenience, output stability and assembly and debugging efficiency of the distributed multi-drive transmission mechanism.

[0149] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described embodiments, without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications, additions, or substitutions may be made to the described embodiments. Such modifications, additions, or substitutions may be made by persons skilled in the art. Such modifications, additions, or substitutions may be made to the described embodiments without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications shall fall within the scope of protection of the present invention.

Claims

1. A distributed multi-drive transmission mechanism based on antenna, characterized in that: include: A mounting plate, the mounting plate comprising a mounting plane; an output unit, the output unit being arranged on the side of the mounting plane, the output unit comprising an output end and an input end with controlled rotation, the output end being configured to move along a first direction when the input end rotates; File selection module, including: a gear selector lever, disposed on the side of the mounting plane, the gear selector lever being controllably rotatable, the gear selector lever being disposed parallel to a second direction, the second direction being perpendicular to the first direction; a driving rod, arranged on the side of the mounting plane, the gear selector lever being controlled to rotate, the driving rod being arranged parallel to the gear selector lever; a gear selection gear movably sleeved on an outer side of the drive rod, the gear selection gear being configured to rotate with the drive rod and / or move along the axial direction of the drive rod; an active slider, the active slider being connected to the gear selector gear so that the gear selector gear can only rotate relative to the active slider, the active slider being in transmission connection with the gear selector lever, and the active slider being configured to move along the second direction when the gear selector lever is controlled to rotate; Wherein, when the output unit is in a working state, the gear selection gear moves along the axial direction of the driving rod to be transmission-connected with the input end of the output unit, so that the input end rotates.

2. The antenna-based distributed multi-drive transmission mechanism according to claim 1, characterized in that: The number of the output units is at least two; The number of the gear selection gears is at least two; The gear selection module further includes: a connecting plate connected to the active slider to move synchronously with the active slider; At least one driven slider is arranged on the connecting plate to move synchronously with the connecting plate, the driven slider is connected to one of the remaining gear selection gears, the gear selection gear is configured to only be able to rotate relative to the driven slider, and the driven slider is slidably connected to the gear selection rod.

3. The antenna-based distributed multi-drive transmission mechanism according to claim 2, characterized in that: The output unit includes: A mounting seat is arranged on the mounting plane, and a first limiting through groove is opened on the mounting seat along the first direction; a gear box disposed on the mounting plane, wherein a side of the gear box is provided with an opening communicating with the interior thereof, and a second limiting slot is also provided on the gear box along the first direction and aligned with the first limiting slot; a driving screw, wherein the axis of the driving screw is parallel to the first direction, one end of the driving screw is rotatably connected to the mounting seat, and the other end of the driving screw is rotatably connected to the gear box and extends into the interior of the gear box; A reversing gear set is arranged inside the gear box, and the reversing gear set includes: A driven gear, the driven gear being fixedly connected to one end of the driving screw extending into the gear box, the rotation axis of the driven gear being collinear with the axis of the driving screw; a first transmission gear, the first transmission gear being rotatably disposed in the gear box and meshing with the driven gear, the first transmission gear being the input end; A connecting piece, drivingly connected to the driving screw; A pull rod is fixedly connected to the connecting member, and the pull rod is inserted into the second limiting slot or the first limiting slot, and one end of the pull rod is the output end.

4. The antenna-based distributed multi-drive transmission mechanism according to claim 3, characterized in that: A guide groove is provided in the gear box, and the extending direction of the guide groove is perpendicular to the mounting plane and points in the direction of the opening; The output unit further includes: A locking block moves in a controlled manner, the locking block being arranged in the guide groove to move along the extension direction of the guide groove, the locking block being provided with a through groove along the first direction to arrange the driven gear cover inside the through groove, and the inner wall of the through groove being provided with locking teeth to engage with the teeth on the peripheral side of the driven gear when the locking block moves a preset distance toward the opening direction to limit the rotation of the driven gear.

5. The antenna-based distributed multi-drive transmission mechanism according to claim 4, characterized in that: The locking block is provided with a first protrusion structure on one side facing the opening; The sides of the active slider and the driven slider are both provided with a second protrusion structure; The output unit further includes: an elastic member disposed in the gear box and located between an inner wall of the gear box facing the opening and the locking block, so as to apply a thrust toward the opening to the locking block, so that the locking block engages with a circumferential side of the driven gear; Wherein, when the output unit is in a working state, the second protrusion structure abuts against the first protrusion structure to apply a thrust to the locking block away from the opening direction, so that the locking block is separated from the driven gear.

6. The antenna-based distributed multi-drive transmission mechanism according to claim 3, characterized in that: A threaded hole is provided on the active slider; The gear selector comprises: a round rod, one end of which is rotatably connected to the mounting plate, and an axis of the round rod is arranged parallel to the second direction; a gear selection screw, one end of which is rotatably connected to the mounting plate, the other end of which is fixedly connected to the other end of the round rod, and the axis of the gear selection screw is collinear with the axis of the round rod, the gear selection screw being threadedly connected to the threaded hole on the active slider so as to drive the active slider to move along the second direction when the gear selection lever rotates; A through hole is provided on the driven sliding block, and the gear selector rod is passed through the through hole.

7. The antenna-based distributed multi-drive transmission mechanism according to claim 1 or 6, characterized in that: The driving rod is a polygonal driving rod, and a polygonal through groove is opened at the center of the side of the gear selection gear. The cross-sectional shape and size of the polygonal through groove are adapted to the cross-sectional shape and size of the driving rod, and the polygonal driving rod is inserted into the polygonal through groove.

8. The antenna-based distributed multi-drive transmission mechanism according to claim 6, characterized in that: Also includes: A driving gear, fixedly sleeved on the outer side of the driving rod; a second transmission gear, movably sleeved on an outer side of the gear selector lever, the second transmission gear being configured to rotate only relative to the gear selector lever, and meshing with the drive gear; a third transmission gear, fixedly sleeved on the outer side of the gear selector lever; A drive control module includes a first drive end for controlled rotation and a second drive end for controlled rotation, the first drive end is provided with a first driving gear, the second drive end is provided with a second driving gear, the first driving gear is engaged with the second transmission gear, and the second driving gear is engaged with the third transmission gear.

9. The antenna-based distributed multi-drive transmission mechanism according to claim 8, characterized in that: The first transmission gear, the second transmission gear and the third transmission gear are all intermediate gears. The axis direction of the first transmission gear is parallel to the second direction. The axis of the second transmission gear and the axis of the third transmission gear are both collinear with the axis of the gear selector.

10. The antenna-based distributed multi-drive transmission mechanism according to claim 3, characterized in that: The surface of the pull rod is provided with a plurality of scale marks along its extending direction, or a scale is provided at the output end of the pull rod.

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