Transmission device and antenna assembly of multi-frequency electrically steerable antenna

Abstract

The present application provides a transmission device and antenna assembly for a multi-frequency electrically tilted antenna, relating to the technical field of transmission control for electrically tilted antennas. The device is designed to address the high manufacturing cost of transmission devices for multi-frequency electrically tilted antennas. The transmission device for the multi-frequency electrically tilted antenna has an initial state and an operating state. The transmission device comprises a rack mechanism and an active mechanism. The rack mechanism includes multiple racks spaced apart and connected to a phase shifter. The racks are arranged in parallel and coplanar. The active mechanism comprises an active drive member, a screw, a sliding rod, a slide, and a gear shaft. The active drive member is in driving connection with the screw, which extends perpendicular to the racks. The sliding rod is parallel to the screw. One end of the slide is sleeved around a portion of the outer circumference of the gear shaft, and the other end is sleeved around the sliding rod and slidably connected to the sliding rod. The slide is provided with a first clamping member. The gear shaft is threadedly engaged with the screw and meshes with the racks. The gear shaft is provided with a second clamping member.

Description

Technical Field

[0001] The present application relates to the technical field of transmission control of electrically steerable antennas, and in particular to a transmission device and antenna assembly for a multi-frequency electrically steerable antenna. Background Art

[0002] In the related art, the transmission device of the multi-frequency electrically adjustable antenna is bulky as a whole and adopts a circular layout, which makes the manufacturing cost of the transmission device of the multi-frequency electrically adjustable antenna high. Summary of the Invention

[0003] In order to solve the above technical problems, the present application provides a transmission device and an antenna assembly for a multi-frequency electrically adjustable antenna, which are used to solve the problem of high cost of the transmission device of the multi-frequency electrically adjustable antenna.

[0004] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0005] In a first aspect, embodiments of the present application provide a transmission device for a multi-frequency electrically-tuned antenna. The transmission device has an initial state and an operating state, and includes a rack mechanism and an active mechanism. The rack mechanism includes multiple spaced racks for connecting to phase shifters. The racks are arranged in parallel and coplanar. The active mechanism includes an active drive member, a screw, a sliding rod, a slide, and a gear shaft. The active drive member is drivingly connected to the screw, which extends perpendicular to the racks. The sliding rod is parallel to the screw. One end of the slide is partially sleeved around the outer circumference of the gear shaft, and the other end is sleeved around the sliding rod and slidably connected to the sliding rod. The slide is provided with a first clamping member. The gear shaft is threadedly engaged with the screw and meshes with the rack. The gear shaft is provided with a second clamping member. In the initial state, the first clamping member is engaged with the second clamping member, and the active drive member is used to drive the gear shaft to move along the extension direction of the screw. In the working state, the first clamping member is disengaged from the second clamping member, and the active driving member is used to drive the gear shaft to rotate relative to the slide seat so that the gear shaft is engaged with the rack.

[0006] According to the transmission device for a multi-frequency electrically tilted antenna according to an embodiment of the present application, by extending the screw of the active mechanism in a direction perpendicular to the rack, the circumferential dimension or thickness of the transmission device for the multi-frequency electrically tilted antenna can be reduced, thereby improving the structural layout of the transmission device for the multi-frequency electrically tilted antenna. Furthermore, the slide of the active mechanism and the gear shaft can be engaged or disengaged through the cooperation of a first engaging member and a second engaging member, allowing the gear shaft to slide only in the direction in which the screw extends or to rotate relative to the slide. This allows the transmission device for the multi-frequency electrically tilted antenna to have an initial state and an operating state, and the switching between the two operating states is relatively simple, facilitating switching between different frequency bands of the transmission device for the multi-frequency electrically tilted antenna and reducing the manufacturing cost of the transmission device for the multi-frequency electrically tilted antenna.

[0007] In some embodiments, the transmission device of the multi-frequency electrically tilted antenna further includes a switching mechanism and a reversing mechanism spaced apart from each other. In the extension direction of the rack, the reversing mechanism is disposed on one side of the active mechanism, and the switching mechanism is disposed on a side of the reversing mechanism away from the active mechanism. The reversing mechanism includes a reversing member, and the switching mechanism includes a switching member and a driven member, wherein the driven member is in transmission connection with the switching member. In an operating state, the driven member drives the switching member to abut against the reversing member, causing the reversing member to abut against the first engaging member.

[0008] In some embodiments, the slide has a first accommodating cavity and a second accommodating cavity, the first accommodating cavity having a first opening that communicates with the second accommodating cavity, the first clamping member being slidably disposed within the first accommodating cavity and facing the first opening, and the second clamping member being disposed on a portion of the gear shaft located in the second accommodating cavity and facing the first opening. In an initial state, the first clamping member passes through the first opening and engages with the second clamping member.

[0009] In some embodiments, the slide further comprises a third accommodating chamber, the third accommodating chamber being located on a side of the first accommodating chamber away from the second accommodating chamber, the third accommodating chamber having a second opening, a third opening, and a fourth opening, the second opening being in communication with the first accommodating chamber and directly opposite the first opening, and the third opening and the fourth opening being formed on opposite outer side walls of the slide; the first clamping member having a connecting portion, the connecting portion being disposed through the third opening and the fourth opening and being connected to the first clamping member. In the operating state, the driven driving member drives the switching member to abut against the reversing member, causing the reversing member to abut against the connecting portion.

[0010] In some embodiments, the cross-sectional area of ​​the first accommodating cavity gradually decreases in the direction from the second opening to the first opening, the first clamping member cooperates with the first accommodating cavity, and the second clamping member is a groove formed on the gear shaft.

[0011] In some embodiments, a mating groove is formed on one side of the reversing member close to the first clamping member, and the width of the mating groove in a direction perpendicular to the rack is greater than the width of the connecting portion.

[0012] In some embodiments, the reversing mechanism includes a fixed part, a sliding part and a reset part. The fixed part is parallel to the screw, and a first through hole is formed on the fixed part. The reversing part and the reset part are arranged on two opposite sides of the fixed part, and the reversing part is located on the side of the fixed part close to the active mechanism. The sliding part can be slidably passed through the first through hole and is connected to the reversing part. One end of the reset part is connected to the fixed part, and the other end is connected to the sliding part.

[0013] In some embodiments, a second through-hole is formed in the fixing member, spaced apart from the first through-hole. A guide member is provided on a side of the reversing member proximate to the fixing member. The guide member passes through the second through-hole and extends to a side of the resetting member. In an operating state, the driven driving member drives the switching member to abut against the guide member, thereby causing the reversing member to abut against the connecting portion.

[0014] In some embodiments, a roller is provided on the side of the guide member away from the reversing member, and the switching mechanism also includes a switching guide rod, which is parallel to the screw rod. The switching member is threadedly engaged with the switching guide rod, and the cross-sectional area of ​​the switching member on the side close to the roller gradually decreases in the direction from the reversing mechanism to the active mechanism.

[0015] In some embodiments, the switching mechanism further includes a guide rod, which is arranged on a side of the switching guide rod away from the active mechanism and is parallel to the switching guide rod. One end of the switching member is connected to the switching guide rod, and the other end is connected to the guide rod.

[0016] In some embodiments, there are multiple switching elements, and the switching elements are arranged between two adjacent racks.

[0017] In a second aspect, the present application provides an antenna assembly, comprising a phase shifter and a transmission device for the multi-frequency electrically tunable antenna.

[0018] Among them, the technical effects brought about by the design method of the second aspect can refer to the technical effects brought about by the different design methods in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic diagram of a transmission device for a multi-frequency electrically adjustable antenna provided in some embodiments of the present application;

[0022] Figure 2 Schematic diagram of an active mechanism provided for some embodiments of the present application;

[0023] Figure 3 A perspective view of an active mechanism provided for some embodiments of the present application;

[0024] Figure 4A partial view of a transmission device for a multi-frequency electrically adjustable antenna provided in some embodiments of the present application;

[0025] Figure 5 Schematic diagram of the active mechanism and the reversing mechanism provided in some embodiments of the present application;

[0026] Figure 6 A partial schematic diagram of the active mechanism and the reversing mechanism provided in some embodiments of the present application;

[0027] Figure 7 Schematic diagram of a switching mechanism provided in some embodiments of the present application.

[0028] Reference numerals:

[0029] 100. Transmission device of multi-frequency electrically adjustable antenna;

[0030] 1. Rack mechanism; 11. Rack; 12. Fixed seat;

[0031] 2. Active mechanism; 21. Active driving member; 22. Screw; 23. Sliding rod; 24. Sliding seat; 241. First clamping member; 2411. Connecting portion; 242. First accommodating chamber; 2421. First opening; 243. Second accommodating chamber; 244. Third accommodating chamber; 2441. Second opening; 2442. Third opening; 2443. Fourth opening; 25. Gear shaft; 251. Second clamping member; 26. First supporting seat;

[0032] 3. Reversing mechanism; 31. Reversing member; 311. Matching groove; 32. Fixing member; 321. First through hole; 322. Second through hole; 33. Sliding member; 34. Resetting member; 35. Guide member; 351. Roller;

[0033] 4. Switching mechanism; 41. Switching member; 42. Driven driving member; 43. Guide rod; 44. Second supporting seat; 45. Switching guide rod. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] In the description of the embodiments of this application, the term "and / or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and / or" describes an association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects are in an "or" relationship.

[0038] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside" and "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying 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 a limitation on the embodiments of the present application.

[0039] In the description of the embodiments of the present application, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0040] In the related art, the transmission device of the multi-frequency electrically adjustable antenna is bulky as a whole and adopts a circular layout, which makes the manufacturing cost of the transmission device of the multi-frequency electrically adjustable antenna high.

[0041] In order to solve the above technical problems, the present application provides a transmission device for a multi-frequency electrically adjustable antenna. Figure 1 , Figure 1 Schematic diagram of a transmission device for a multi-frequency electrically adjustable antenna according to some embodiments of the present application. The transmission device 100 for a multi-frequency electrically adjustable antenna includes a rack mechanism 1 and an active mechanism 2.

[0042] The rack mechanism 1 may include a plurality of racks 11 arranged at intervals. The plurality of racks 11 may be arranged at even intervals, or the spacing between two adjacent racks 11 may be set according to design requirements.

[0043] Exemplarily, the rack mechanism 1 may further include a fixing seat 12 . The fixing seat 12 may be provided at both ends of the rack 11 to reduce vibration generated by the rack 11 during movement.

[0044] The multiple racks 11 can be arranged in parallel and located on the same plane. Specifically, the multiple racks 11 being parallel means that the multiple racks 11 are substantially parallel. This allows the transmission device 100 for the multi-frequency electrically adjustable antenna to have a smaller circumferential dimension or thickness, resulting in a more rational structural layout.

[0045] In the example of the present application, four racks 11 are used as an example for illustration. The specific number of racks 11 can be set according to the number of frequency bands of the multi-band antenna.

[0046] The rack mechanism 1 can be used to connect phase shifters. Specifically, each rack 11 can be connected to a phase shifter to achieve different frequency band control.

[0047] Please continue reading Figure 1 The active mechanism 2 may include an active driving member 21, a screw 22, a sliding rod 23, a slide seat 24, and a gear shaft 25. The active driving member 21 is in transmission connection with the screw 22. Specifically, the output shaft of the active driving member 21 may be directly in transmission connection with the screw 22 to drive the screw 22 to rotate.

[0048] For example, the active driving member 21 may be a driving motor, which can improve the control accuracy of the active driving member 21 .

[0049] The screw rod 22 may extend in a direction perpendicular to the rack 11. Specifically, the extending direction of the screw rod 22 may be perpendicular to the extending direction of the rack 11. Thus, the circumferential size or thickness of the transmission device 100 for the multi-frequency electrically adjustable antenna may be reduced.

[0050] The sliding rod 23 can be parallel to the screw rod 22. Specifically, the sliding rod 23 and the screw rod 22 can be substantially parallel, that is, there can be a small angle between the sliding rod 23 and the screw rod 22 (for example, the angle can be 3°, 5°, etc.). Exemplarily, the active mechanism 2 can also include a first support seat 26. The first support seat 26 can be disposed at opposite ends of the screw rod 22 and the sliding rod 23. The screw rod 22 can rotate relative to the first support seat 26, and the sliding rod 23 is fixed relative to the first support seat 26. The screw rod 22 and the sliding rod 23 are parallel.

[0051] The screw rod 22 may be provided with an anti-collision groove.

[0052] Please continue reading Figure 1 The screw 22 of the gear shaft 25 is threadedly matched and meshes with the rack 11. Specifically, the gear shaft 25 can be sleeved on the screw 22. The interior of the gear shaft 25 can be provided with an internal thread, and the outer surface of the screw 22 can be provided with an external thread that matches the thread of the gear shaft 25. The outer surface of the gear shaft 25 can be provided with teeth that match the rack 11. When the active drive member 21 drives the screw 22 to rotate, it can drive the gear shaft 25 to rotate. The gear shaft 25 can then drive the rack 11 that matches it to move along the extension direction of the rack 11, thereby achieving phase adjustment.

[0053] See also Figure 1 and Figure 2 , Figure 2 Schematic diagram of the active mechanism provided for some embodiments of the present application. One end of the slide 24 can be sleeved on a portion of the outer circumference of the gear shaft 25, and the other end can be sleeved on the sliding rod 23. The slide 24 can be slidably connected to the sliding rod 23. Thus, the slide 24 can be prevented from rotating relative to the sliding rod 23 by the restriction of the sliding rod 23. At the same time, when the slide 24 is connected to the gear shaft 25, the rotation of the gear shaft 25 can also be restricted, so that the gear shaft 25 can move along the extension direction of the screw 22 under the drive of the active driving member 21. At the same time, it can also prevent the slide 24 from interfering with the meshing between the gear shaft 25 and the rack 11.

[0054] For example, a bearing may be provided on the portion of the gear shaft 25 that is connected to the slide 24. This ensures the stability and reliability of the rotation of the gear shaft 25.

[0055] Please continue reading Figure 1 and Figure 2The transmission device 100 for the multi-frequency electrically tilted antenna has an initial state and an operating state. The slide 24 may be provided with a first clamping member 241, and the gear shaft 25 may be provided with a second clamping member 251. The first clamping member 241 and the second clamping member 251 can engage with each other. Thus, the gear shaft 25 and the slide 24 can be connected or disconnected through the engagement of the first clamping member 241 and the second clamping member 251. This simple engagement method helps reduce the manufacturing cost of the transmission device 100 for the multi-frequency electrically tilted antenna.

[0056] In the initial state, the first engaging member 241 engages with the second engaging member 251, and the active driving member 21 can be used to drive the gear shaft 25 to move along the extension direction of the screw 22. Specifically, when the transmission device 100 for the multi-frequency electrically tilted antenna is in the initial state, the first engaging member 241 of the slide 24 engages with the second engaging member 251 of the gear shaft 25, connecting the slide 24 and the gear shaft 25. Thus, the slide 24 can limit the rotation of the gear shaft 25, so that the gear shaft 25, driven by the active driving member 21, can only move along the extension direction of the screw 22. This allows the gear shaft 25 to move between the multiple racks 11, and at this time, the gear shaft 25 and the racks 11 cannot engage with each other, thereby enabling the selection of a desired frequency band.

[0057] In the operating state, the first clamping member 241 and the second clamping member 251 can be disengaged, and the active driving member 21 is used to drive the gear shaft 25 to rotate relative to the slide 24, so that the gear shaft 25 engages with the rack 11. Specifically, when the transmission device of the multi-frequency antenna changes from the initial state to the operating state, the toothed portion of the gear shaft 25 can be aligned with one of the multiple racks 11, and the first clamping member 241 of the slide 24 and the second clamping member 251 of the gear shaft 25 can be disengaged, so that the slide 24 and the gear shaft 25 are disconnected. As a result, the restriction on the rotation of the gear shaft 25 by the slide 24 can be released, allowing the active driving member 21 to drive the gear shaft 25 to rotate relative to the slide 24, thereby allowing the gear shaft 25 to engage with the opposite rack 11, allowing the rack 11 to move along the extension direction of the rack 11, and thus driving the phase shifter to move.

[0058] According to the transmission device 100 for a multi-frequency electrically tilted antenna according to the embodiment of the present application, by extending the screw 22 of the active mechanism 2 in a direction perpendicular to the rack 11, the circumferential dimension or thickness of the transmission device 100 can be reduced, thereby improving the structural layout of the transmission device 100. Furthermore, the slide 24 of the active mechanism 2 and the gear shaft 25 can be engaged or disengaged through the cooperation of the first engaging member 241 and the second engaging member 251, allowing the gear shaft 25 to slide only along the extension direction of the screw 22 or to rotate relative to the slide 24. As a result, the transmission device 100 for a multi-frequency electrically tilted antenna can have an initial state and an operating state. Switching between the two operating states is relatively simple, facilitating switching between different frequency bands of the transmission device 100 for a multi-frequency electrically tilted antenna and reducing the manufacturing cost of the transmission device 100 for a multi-frequency electrically tilted antenna.

[0059] Please continue reading Figure 1 and Figure 2 In some embodiments, the transmission device 100 for a multi-frequency electrically tilted antenna may further include a switching mechanism 4 and a reversing mechanism 3 spaced apart. In the direction in which the rack 11 extends, the reversing mechanism 3 may be disposed on one side of the active mechanism 2, and the switching mechanism 4 may be disposed on a side of the reversing mechanism 3 that is away from the active mechanism 2. Specifically, in the direction in which the rack 11 extends, the active mechanism 2, the switching mechanism 4, and the reversing mechanism 3 are sequentially spaced apart.

[0060] The reversing mechanism 3 may include a reversing member 31. The switching mechanism 4 may include a switching member 41 and a driven driving member 42. The driven driving member 42 is in transmission connection with the switching member 41. In the working state, the driven driving member 42 drives the switching member 41 to abut against the reversing member 31, so that the reversing member 31 abuts against the first clamping member 241. Specifically, in the working state, the driven driving member 42 can drive the switching member 41 to abut against the reversing member 31, thereby driving the reversing member 31 to move, so that the reversing member 31 can abut against the first clamping member 241, and further drive the first clamping member 241 to move, so that the first clamping member 241 and the second clamping member 251 can be disengaged.

[0061] Therefore, the cooperation between the switching member 41 and the reversing member 31 can drive the movement of the first clamping member 241, and the control method is simple. At the same time, the circumferential size or thickness of the transmission device 100 of the multi-frequency electrically adjustable antenna can be reduced, so that the structural layout of the transmission device 100 of the multi-frequency electrically adjustable antenna can be more reasonable.

[0062] Exemplarily, part of the first clamping member 241 may be located outside the sliding seat 24. This arrangement facilitates the contact between the first clamping member 241 and the sliding seat 24.

[0063] Please continue reading Figure 1In some embodiments, there may be multiple reversing members 31. The reversing members 31 are disposed between two adjacent racks 11. Thus, by providing multiple reversing members 31 to locate the moving position of the gear shaft 25, the first engaging member 241 of the gear shaft 25 can better cooperate with the reversing member 31.

[0064] Exemplarily, the number of the reversing members 31 may be only one, and the reversing mechanism 3 may include a driving member for driving the reversing member 31 to move, and the position of the reversing member 31 may be moved according to the position of the first clamping member 241, thereby reducing the number of reversing members 31 set.

[0065] See also Figure 3 , Figure 3 A perspective view of an active mechanism provided in some embodiments of the present application. In some embodiments, the slide 24 may have a first accommodating cavity 242 and a second accommodating cavity 243. The first accommodating cavity 242 may have a first opening 2421. The first opening 2421 may communicate with the second accommodating cavity 243. Specifically, the first accommodating cavity 242 and the second accommodating cavity 243 may be arranged perpendicular to the extension direction of the screw 22, and the shape of the second accommodating cavity 243 may match that of the gear shaft 25.

[0066] For example, the gear shaft 25 may have a protrusion on its circumference, and the protrusion may be located at the edge of the portion of the gear shaft 25 that extends into the slide 24. Thus, the gear shaft 25 and the slide 24 can be directly assembled, which is beneficial to improving the assembly speed.

[0067] The first clamping member 241 is slidably disposed within the first accommodating cavity 242 and faces the first opening 2421. The second clamping member 251 is disposed on the portion of the gear shaft 25 located in the second accommodating cavity 243 and faces the first opening 2421. In the initial state, the first clamping member 241 passes through the first opening 2421 and engages with the second clamping member 251. Specifically, the first clamping member 241 is slidable within the first accommodating cavity 242, and a portion of the first clamping member 241 can pass through the first opening 2421 and enter the second accommodating cavity 243. When the transmission device 100 for the multi-frequency electrically tilted antenna is in the initial state, a portion of the first clamping member 241 passes through the first opening 2421 and engages with the second clamping member 251, connecting the slide 24 to the gear shaft 25. When in operation, the first clamping member 241 and the second clamping member 251 disengage, allowing the first clamping member 241 to be completely located within the first accommodating cavity 242.

[0068] Thus, it is possible to avoid providing the first clamping member 241 and the second clamping member 251 at other locations on the slide 24 and the gear shaft 25, which helps to reduce the volume of the active mechanism 2 and thus reduce the manufacturing cost of the active mechanism 2. At the same time, the first clamping member 241 and the second clamping member 251 can be clamped together by passing through the first opening 2421, which simplifies the structure and facilitates the assembly of the active mechanism 2.

[0069] Please continue reading Figure 3 and Figure 4 , Figure 4 A partial view of the transmission device of a multi-frequency electrically tilted antenna provided in some embodiments of the present application. In some embodiments, the slide 24 may further include a third accommodating cavity 244. The third accommodating cavity 244 may be located on a side of the first accommodating cavity 242 away from the second accommodating cavity 243. The third accommodating cavity 244 may have a second opening 2441, a third opening 2442, and a fourth opening 2443. The second opening 2441 communicates with the first accommodating cavity 242 and is directly opposite the first opening 2421. This allows the third accommodating cavity 244 to communicate with both the first accommodating cavity 242 and the second accommodating cavity 243.

[0070] Please continue reading Figure 3 and Figure 4 The third opening 2442 and the fourth opening 2443 are formed on opposite outer side walls of the slide 24. The first clamping member 241 has a connecting portion 2411, which passes through the third opening 2442 and the fourth opening 2443 and is connected to the first clamping member 241. In the working state, the driven driving member 42 drives the switching member 41 to abut against the reversing member 31, so that the reversing member 31 abuts against the connecting portion 2411. Specifically, a portion of the connecting portion 2411 can extend out of the third opening 2442 and the fourth opening 2443, facilitating the abutment of the reversing member 31 against the connecting portion 2411.

[0071] Therefore, when the commutator 31 abuts against the connecting portion 2411, the connecting portion 2411 can be driven to move in a direction away from the screw rod 22, or the connecting portion 2411 can be driven to move along the extension direction of the screw rod 22, thereby facilitating the commutator 31 to abut against the connecting portion 2411, so that the commutator 31 can better drive the connecting portion 2411 to move, thereby facilitating improving the stability and reliability of the switching working state of the transmission device 100 of the multi-frequency electrically adjustable antenna.

[0072] For example, the connecting portion 2411 and the first clamping member 241 may be an integral part, which can improve the connection strength between the connecting portion 2411 and the first clamping member 241 and reduce the difficulty of assembling the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0073] Please continue reading Figure 3In some embodiments, the cross-sectional area of ​​the first accommodating cavity 242 gradually decreases from the second opening 2441 to the first opening 2421. The first engaging member 241 engages with the first accommodating cavity 242, and the second engaging member 251 is a groove formed on the gear shaft 25. Specifically, when the transmission device 100 for the multi-frequency electrically tilted antenna is in an initial state, the first engaging member 241 can directly engage with the second engaging member 251 under the action of gravity, thereby reducing the number of components required to drive the first engaging member 241 and, in turn, lowering the manufacturing cost of the transmission device 100 for the multi-frequency electrically tilted antenna. When the transmission device 100 for the multi-frequency electrically tilted antenna is in operation, the first engaging member 241 can move along the extension direction of the screw rod 22. The inclined surface of the first engaging member 241 and the inclined surface of the first accommodating cavity 242 can move relative to each other, allowing the first engaging member 241 to slide directly to one side, thereby disengaging the first engaging member 241 from the second engaging member 251.

[0074] Thus, the steps of engaging or disengaging the first engaging member 241 and the second engaging member 251 can be simplified, thereby reducing the manufacturing cost of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0075] See also Figure 3-Figure 5 , Figure 5 Schematic diagram of the active mechanism and the reversing mechanism provided in some embodiments of the present application. In some embodiments, a mating groove 311 may be formed on one side of the reversing member 31 near the first clamping member 241. The width of the mating groove 311 in a direction perpendicular to the rack 11 is greater than the width of the connecting portion 2411. Specifically, when the transmission device 100 of the multi-frequency electric tuning antenna changes from an initial state to a working state, the connecting part 2411 is located in the mating groove 311. When the gear shaft 25 moves in the direction from the third opening 2442 to the fourth opening 2443, the mating groove 311 can abut against the part of the connecting part 2411 extending out of the third opening 2442, so that the connecting part 2411 can move in the direction close to the fourth opening 2443, thereby driving the first clamping part 241 to move in the direction close to the fourth opening 2443, so that the inclined surface of the first clamping part 241 and the inclined surface of the first accommodating cavity 242 move relative to each other, so that the first clamping part 241 and the second clamping part 251 in the clamping state can be disengaged, so that the gear shaft 25 can rotate relative to the slide 24.

[0076] Therefore, the first clamping member 241 can be driven to move by the cooperation between the groove 311 and the connecting portion 2411. The method of driving the first clamping member 241 to move is simple, which is conducive to reducing the manufacturing cost of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0077] See also Figure 6 , Figure 6A partial schematic diagram of the active mechanism and reversing mechanism provided in some embodiments of the present application. In some embodiments, the reversing mechanism 3 may include a fixing member 32, a sliding member 33, and a reset member 34. The fixing member 32 may be parallel to the screw 22 and may have a first through hole 321 formed therein. The first through hole 321 may extend perpendicular to the fixing member 32 or may extend at an angle, which is not limited in this application.

[0078] The commutator 31 and the reset member 34 are disposed on opposite sides of the fixed member 32, with the commutator 31 located on the side of the fixed member 32 closer to the active mechanism 2. A slider 33 slidably extends through the first through-hole 321 and is connected to the commutator 31. One end of the reset member 34 is connected to the fixed member 32, and the other end is connected to the slider 33. Thus, the slider 33 slidably engages with the first through-hole 321, guiding the movement of the commutator 31. The reset member 34 allows the commutator 31 to return to its initial position after movement. This simplifies the control method and eliminates the need for additional components to drive the commutator 31 back to its initial position, thereby reducing the manufacturing cost of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0079] Exemplarily, the reset member 34 can be a spring, rubber, etc. Wherein, when the reset member 34 is a spring, one end of the reset member 34 away from the reversing member 31 can have a blocking boss to prevent the reset member 34 from falling off.

[0080] For example, the sliding member 33 and the reversing member 31 may be detachably connected, thereby facilitating assembly of the sliding member 33 and the reversing member 31 and improving the maintainability of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0081] For example, there are multiple first through holes 321 and multiple sliding members 33, and the multiple sliding members 33 correspond one-to-one with the multiple first through holes 321. This allows the switching member 31 to move or reset more stably, thereby improving the stability and reliability of the transmission device 100 for the multi-frequency electrically tunable antenna.

[0082] Please continue reading Figure 6 and Figure 7 , Figure 7 Schematic diagram of a switching mechanism provided in some embodiments of the present application. In some embodiments, a second through hole 322 may be formed on the fixing member 32, spaced apart from the first through hole 321. The second through hole 322 may extend in the same direction as the first through hole 321. This arrangement can improve the processing efficiency of the fixing member 32.

[0083] A guide member 35 may be provided on the side of the commutator 31 near the fixing member 32. The guide member 35 passes through the second through hole 322 and extends to one side of the reset member 34. In operation, the driven drive member 42 drives the switching member 41 to abut against the guide member 35, causing the commutator 31 to abut against the connecting portion 2411. This allows the switching member 41 to directly abut against the guide member 35. As the guide member 35 slides within the second through hole 322, it guides the movement of the commutator 31, reducing any shaking of the commutator 31 during movement. This also reduces the travel of the switching member 41, facilitating improved response speed of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0084] See also Figure 6 and Figure 7 In some embodiments, a roller 351 may be provided on the side of the guide member 35 away from the reversing member 31. The switching mechanism 4 may further include a switching guide rod 45 parallel to the screw rod 22, with the switching member 41 threadedly engaged with the switching guide rod 45. Thus, the switching member 41 is sleeved on the switching guide rod 45 and, driven by the driven drive member 42, can move along the extension direction of the switching guide rod 45.

[0085] Along the direction from the reversing mechanism 3 to the active mechanism 2, the cross-sectional area of ​​the switching member 41 on the side closest to the roller 351 gradually decreases. Therefore, the switching member 41 can have a guiding slope. When the switching member 41 and the roller 351 cooperate, the friction between the switching member 41 and the roller 351 can be reduced, allowing the switching member 41 to more smoothly drive the reversing member 31 to move, thereby improving the transmission reliability of the transmission device 100 for the multi-frequency electrically adjustable antenna.

[0086] Please continue reading Figure 7 In some embodiments, the switching mechanism 4 may further include a guide rod 43. The guide rod 43 is disposed on a side of the switching guide rod 45 that is away from the active mechanism 2 and is parallel to the switching guide rod 45. One end of the switching member 41 is connected to the switching guide rod 45, and the other end is connected to the guide rod 43. This restricts the rotation of the switching member 41, so that the switching member 41 moves only along the extension direction of the switching guide rod 45.

[0087] Exemplarily, the switching mechanism 4 further includes a second supporting seat 44 , and the guide rod 43 and the switching guide rod 45 can be disposed on the second supporting seat 44 .

[0088] This embodiment of the present application also provides an antenna assembly including a phase shifter and the aforementioned transmission device 100 for the multi-frequency electrically steerable antenna. The transmission device 100 in this embodiment has the same specific structure and implementation principles as the transmission device 100 provided in the aforementioned embodiment, and can achieve the same or similar technical effects. A detailed description thereof will not be repeated here; reference is made to the description of the aforementioned embodiment for details.

[0089] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0090] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A transmission device for a multi-frequency electrically adjustable antenna, characterized in that: The transmission device of the multi-frequency electrically adjustable antenna has an initial state and a working state, and the transmission device of the multi-frequency electrically adjustable antenna includes: A rack mechanism, comprising a plurality of racks arranged at intervals, the racks being used to connect to the phase shifter, the plurality of racks being arranged in parallel and located on the same plane; The active mechanism includes an active driving member, a screw, a sliding rod, a sliding seat and a gear shaft, wherein the active driving member is connected to the screw in a transmission manner, the screw extends in a direction perpendicular to the rack, the sliding rod is parallel to the screw, one end of the sliding seat is sleeved on a portion of the outer circumference of the gear shaft, and the other end is sleeved on the sliding rod and is slidably connected to the sliding rod, the sliding seat is provided with a first clamping member; the gear shaft is threadedly matched with the screw and can mesh with the rack, and the gear shaft is provided with a second clamping member; Wherein, in the initial state, the first clamping member is engaged with the second clamping member, and the active driving member is used to drive the gear shaft to move along the extending direction of the screw; In the working state, the first clamping member is disengaged from the second clamping member, and the active driving member is used to drive the gear shaft to rotate relative to the slide seat, so that the gear shaft is engaged with the rack.

2. The transmission device of the multi-frequency electrically adjustable antenna according to claim 1, characterized in that: The transmission device of the multi-frequency electrically adjustable antenna further includes a switching mechanism and a reversing mechanism spaced apart from each other. In the extension direction of the rack, the reversing mechanism is disposed on one side of the active mechanism, and the switching mechanism is disposed on a side of the reversing mechanism away from the active mechanism. The reversing mechanism includes a reversing member, and the switching mechanism includes a switching member and a driven driving member, wherein the driven driving member is in transmission connection with the switching member. Wherein, in the working state, the driven driving member drives the switching member to abut against the reversing member, so that the reversing member abuts against the first clamping member.

3. The transmission device of the multi-frequency electrically adjustable antenna according to claim 2, characterized in that: The sliding seat has a first accommodating cavity and a second accommodating cavity, the first accommodating cavity has a first opening, the first opening is communicated with the second accommodating cavity, the first clamping member is slidably disposed in the first accommodating cavity and faces the first opening, and the second clamping member is disposed on a portion of the gear shaft located in the second accommodating cavity and faces the first opening; Wherein, in the initial state, the first clamping member passes through the first opening and is clamped with the second clamping member.

4. The transmission device for a multi-frequency electrically adjustable antenna according to claim 3, wherein: The slide seat further includes a third accommodating cavity, the third accommodating cavity being located on a side of the first accommodating cavity away from the second accommodating cavity, the third accommodating cavity having a second opening, a third opening, and a fourth opening, the second opening being in communication with the first accommodating cavity and facing the first opening, the third opening and the fourth opening being formed on two opposite outer side walls of the slide seat; the first clamping member having a connecting portion, the connecting portion being provided through the third opening and the fourth opening and being connected to the first clamping member; Wherein, in the working state, the driven driving member drives the switching member to abut against the reversing member, so that the reversing member abuts against the connecting portion.

5. The transmission device for a multi-frequency electrically adjustable antenna according to claim 4, wherein: In the direction from the second opening to the first opening, the cross-sectional area of ​​the first accommodating cavity gradually decreases, the first clamping member cooperates with the first accommodating cavity, and the second clamping member is a groove formed on the gear shaft.

6. The transmission device for a multi-frequency electrically adjustable antenna according to claim 5, wherein: A matching groove is formed on one side of the reversing member close to the first clamping member, and the width of the matching groove in a direction perpendicular to the rack is greater than the width of the connecting portion.

7. The transmission device for a multi-frequency electrically adjustable antenna according to claim 5, wherein: The reversing mechanism includes a fixed part, a sliding part and a reset part. The fixed part is parallel to the screw rod. A first through hole is formed on the fixed part. The reversing part and the reset part are arranged on two opposite sides of the fixed part, and the reversing part is located on the side of the fixed part close to the active mechanism. The sliding part is slidably arranged in the first through hole and is connected to the reversing part. One end of the reset part is connected to the fixed part, and the other end is connected to the sliding part.

8. The transmission device for a multi-frequency electrically adjustable antenna according to claim 7, wherein: A second through hole is formed on the fixing member and is spaced apart from the first through hole. A guide member is provided on a side of the reversing member close to the fixing member. The guide member passes through the second through hole and extends to one side of the resetting member. Wherein, in the working state, the driven driving member drives the switching member to abut against the guide member, so that the reversing member abuts against the connecting portion.

9. The transmission device for a multi-frequency electrically adjustable antenna according to claim 8, wherein: A roller is provided on the side of the guide member away from the reversing member, and the switching mechanism also includes a switching guide rod, which is parallel to the screw rod. The switching member is threadedly engaged with the switching guide rod. Along the direction from the reversing mechanism to the active mechanism, the cross-sectional area of ​​the switching member on the side close to the roller gradually decreases.

10. The transmission device for a multi-frequency electrically adjustable antenna according to claim 9, wherein: The switching mechanism further includes a guide rod, which is arranged on a side of the switching guide rod away from the active mechanism and parallel to the switching guide rod. One end of the switching member is connected to the switching guide rod, and the other end is connected to the guide rod.

11. The transmission device for a multi-frequency electrically adjustable antenna according to claim 2, wherein: There are multiple switching elements, and each switching element is arranged between two adjacent racks.

12. An antenna assembly, characterized in that: A transmission device for a multi-frequency electrically adjustable antenna comprising a phase shifter and any one of claims 1 to 11.

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