EP4290695A1

EP4290695A1 - Gear shift adjustment device and base station antenna

Info

Publication number: EP4290695A1
Application number: EP22929203.2A
Authority: EP
Inventors: Han Wu; Weihua Wu
Original assignee: CICT Mobile Communication Technology Co Ltd
Current assignee: CICT Mobile Communication Technology Co Ltd
Priority date: 2022-03-31
Filing date: 2022-07-01
Publication date: 2023-12-13
Also published as: EP4290695A4; CN114709596A; MX2023010163A; WO2023184769A1

Abstract

The present application provides a shift regulation apparatus and a base station antenna, the shift regulation apparatus includes: a mounting base, where the mounting base is provided with a mounting cavity; a gear transmission portion, including at least one transmission portion provided in the mounting cavity, where the transmission portion includes a plurality of output members, and each of the output members corresponds to one antenna; a gear shift switching unit, including a selection driver portion provided in the mounting cavity and a selection portion corresponding to the transmission portion, where the selection driver portion is drivingly connected to the selection portion, and the selection portion selects the corresponding output member in the transmission portion; and a shift drive unit, including a drive portion provided on the mounting base and corresponding to the transmission portion, where the drive portion is configured to drive a corresponding selection portion to drive the corresponding output member.

Description

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to Chinese Patent Application No. 202210345298.4, filed on March 31, 2022 , entitled "Shift Regulation Apparatus and Base Station Antenna", which is hereby incorporated by reference in its entity.

TECHNICAL FIELD

The present application relates to the field of base station technologies, and in particular to a shift regulation apparatus and a base station antenna.

BACKGROUND

A base station (that is, a public mobile communication base station) is an interface device for mobile devices to access the Internet, and is also a form of radio station. The base station refers to a radio transceiver station that transmits information with a mobile phone terminal through a mobile communication switching center within a certain radio coverage area. Both the base station and the terminal transmit and receive signals through a medium of antennas.
With the continuous increase in the number of mobile terminals, the demand for antennas of a mobile communication base station is also growing. Since resources of mobile base stations are limited, it becomes a demand trend to integrate a plurality of antennas. For a multiband antenna, a traditional electrically adjusting method is that a down-tilt angle regulation apparatus is adopted in antennas of each frequency band, that is, a multiband antenna requires a plurality of down-tilt angle regulation apparatuses, which are controlled and adjusted by a plurality of motors. This will cause a problem that an antenna transmission adjustment mechanism has complex transmission, large space occupation and high use cost.

SUMMARY

The present application provides a shift regulation apparatus and a base station antenna, to solve a problem that a traditional antenna transmission device has complex transmission, large space occupation and high cost.
In view of the problems in the related art, the present application provides a shift regulation apparatus, including:

a mounting base, provided with a mounting cavity;
a shift transmission unit, including at least one transmission portion provided within the mounting cavity, where the transmission portion includes a plurality of output members, and each of the output members corresponds to an antenna;
a shift switching unit, including a selection driver portion provided in the mounting cavity and a selection portion corresponding to the transmission portion, where the selection driver portion is drivingly connected to the selection portion to enable the selection portion to select an output member in a corresponding transmission portion; and
a shift drive unit, including a drive portion provided on the mounting base and corresponding to the transmission portion, where the drive portion is configured to drive a corresponding selection portion to drive the corresponding output member.

In a shift regulation apparatus according to the present application, the transmission portion includes a transmission shaft provided in the mounting cavity and a plurality of transmission gears provided on the transmission shaft, each transmission gear is rotatable along an axial direction of the transmission shaft, and each transmission gear is respectively drivingly connected to one of the output members.
In a shift regulation apparatus according to the present application, the selection portion includes at least one selection gear, the selection driver portion is drivingly connected to the selection gear, such that the selection gear is moveable along an axial direction of the transmission shaft of a corresponding transmission portion, and the selection gear is configured to switch to select the transmission gear in the corresponding transmission portion during moving.
In a shift regulation apparatus according to the present application, the selection portion includes two selection gears, one selection gear corresponds to a part of the output member in the transmission portion, the other selection gear corresponds to remaining output members in the transmission portion, and when one of the selection gears is meshed with one of the plurality of transmission gears, the other selection gear is located between another two of the plurality of transmission gears.
In a shift regulation apparatus according to the present application, the selection portion includes a mounting shaft, the mounting shaft and a corresponding transmission shaft are arranged in parallel, the two selection gears are provided on the mounting shaft at intervals, each selection gear is slidable along an axial direction of the mounting shaft and is moveable along the axial direction of the mounting shaft; and
each selection gear is configured to select a corresponding transmission gear during sliding, and is configured to drive a selected transmission gear to rotate during rotating.
In a shift regulation apparatus according to the present application, the selection portion further includes a mounting sleeve movably sleeved on the mounting shaft, two ends of the mounting sleeve are connected to selection gears, and the selection driver portion is drivingly connected to the mounting sleeve and configured to drive the mounting sleeve to slide on the mounting shaft.
In a shift regulation apparatus according to the present application, the selection driver portion includes a driving screw rod, a transmission nut and a first driver, the driving screw rod and a corresponding mounting shaft are arranged in parallel, the transmission nut is threadedly connected to the driving screw rod and drivingly connected to the mounting sleeve, and the first driver is drivingly connected to the driving screw rod and configured to drive the driving screw rod to rotate.
In a shift regulation apparatus according to the present application, an end of the driving screw rod is provided with a first positioning block, the transmission nut is correspondingly provided with a second positioning block, and the first positioning block matches with the second positioning block to position the transmission nut.
In a shift regulation apparatus according to the present application, the drive portion includes a second driver, a drive switching member and a first drive gear,
where the drive switching member includes a switching shaft and further includes a first bevel gear and a second drive gear provided at two ends of the switching shaft respectively, the first drive gear is provided at an end of the corresponding mounting shaft and is meshed with the second drive gear, and the second driver is drivingly connected to the first bevel gear.
In a shift regulation apparatus according to the present application, a plurality of transmission portions are provided, and a plurality of selection portions and a plurality of drive portions are further provided,
where the plurality of the transmission portions are provided in sequence along a horizontal direction, mounting sleeves of adjacent selection portions are connected by a connecting rod extending in the horizontal direction, and the selection driver portion is drivingly connected to a mounting sleeve of a first selection portion or a last selection portion, and each drive portion is respectively drivingly connected to the mounting shaft of a corresponding selection portion.
In a shift regulation apparatus according to the present application, a plurality of transmission portions are provided, and a plurality of selection portions and a plurality of drive portions are further provided,
where the plurality of the transmission portions are provided in sequence in a vertical direction, mounting sleeves of adjacent selection portions are connected by a connecting block extending in the vertical direction, and the selection driver portions are drivingly connected to the mounting sleeve of the first selection portion or the last selection portion, and each drive portion is drivingly connected to the mounting shaft of the corresponding selection portion.
In a shift regulation apparatus according to the present application, an end of the drive screw is provided with a second bevel gear, the first driver includes a first drive rod penetrating through a side wall of the mounting cavity and a first spur gear provided on the first drive rod, the first spur gear is meshed with the second bevel gear.
In a shift regulation apparatus according to the present application, each output member includes an output shaft and a third bevel gear provided on the output shaft, each third bevel gear is respectively meshed with a corresponding transmission gear, and each output shaft penetrates through a side wall of the mounting cavity.
In a shift regulation apparatus according to the present application, the mounting cavity is provided with a plurality of sets of limiting bases, and the plurality of sets of limiting bases are distributed at intervals along a length direction of the transmission shaft;
each set of limiting bases includes a first limiting base and a second limiting base provided opposite to each other, each transmission gear is provided between a corresponding first limiting base and a corresponding second limiting base, the first limiting base is provided with a mounting hole, the second limiting base is provided with a mounting groove, and both the mounting groove and the mounting hole are configured to limit rotation of the transmission shaft.
The shift regulation apparatus provided by the present application has a compact structure. Through the cooperation of the shift transmission unit, the shift switching unit and the shift drive unit, a plurality sets of power can be selectively output by only one antenna regulation apparatus, which has small space occupation, is beneficial to miniaturizing and thinning a multiband integrated antenna, is more beneficial to reduce the cost, and can improve the working efficiency of the shift regulation apparatus.

BRIEF DESCRIPTION OF DRAWINGS

To more clearly illustrate solutions of the present application or in the related art, accompanying drawings used in the description of the embodiments or the related art are briefly introduced below. The drawings in the following description only show some embodiments of the present application. For those of ordinary skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a three-dimensional structural diagram of a first embodiment of a shift regulation apparatus provided by the present application;
FIG. 2 is a three-dimensional structural disassembly diagram of FIG. 1;
FIG. 3 is a partial three-dimensional structural diagram of FIG. 1;
FIG. 4 is a partial structural diagram of FIG. 1 in a first state;
FIG. 5 is a partial structural diagram of FIG. 1 in a second state;
FIG. 6 is a partial structural diagram of a shift switching unit in FIG. 1;
FIG. 7 is a three-dimensional structural diagram according to a second embodiment of a shift regulation apparatus of the present application;
FIG. 8 is a partial structural diagram of FIG. 7;
FIG. 9 is a schematic three-dimensional structural diagram according to a third embodiment of a shift regulation apparatus of the present application;
FIG. 10 is a partial structural diagram of FIG. 9.

Reference numerals:

1: shift regulation apparatus; 2: mounting base; 3: shift transmission unit; 4: shift switching unit; 5: shift drive unit; 6: mounting cavity; 7: connecting rod; 8: connecting block; 9: transmission portion; 10: selection driver portion; 11: selection portion; 12: drive portion; 13: output member; 14: transmission shaft; 15: transmission gear; 16: driving screw rod; 17: transmission nut; 18: first driver; 19: selection gear; 20: mounting shaft; 21: mounting sleeve; 22: second driver; 23: drive switching member; 24: first drive gear; 25: output shaft; 26: third bevel gear; 27: first positioning block; 28: second bevel gear; 29: second positioning block; 30: first drive rod; 31: first spur gear; 32: second drive rod; 33: second spur gear; 34: switching shaft; 35: first bevel gear; 36: second drive gear; 37: avoidance groove; 38: first limiting base; 39: second limiting base.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to illustrate the objects, solutions and advantages of the application, the solutions in present the application will be described clearly and completely below in combination with the drawings in the application. The described embodiments are part of the embodiments of the application, not all of them. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
In the description of the present application, it should be noted that, the orientation or positional relations specified by terms such as "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, are based on the orientation or positional relations shown in the drawings, which is merely for convenience of description of the present application and to simplify description, but does not indicate or imply that the stated devices or components must have a particular orientation and be constructed and operated in a particular orientation, and thus it is not to be construed as limiting the present application. Furthermore, the terms "first", "second", "third" and the like are only used for descriptive purposes and should not be construed as indicating or implying a relative importance.
In the description of the present application, it should be noted that unless explicitly specified and defined otherwise, the terms "connected to" and "connected" shall be understood broadly, for example, it may be either fixedly connected or detachably connected, or can be integrated; it may be either mechanically connected, or electrically connected; it may be either directly connected, or indirectly connected through an intermediate medium. The specific meanings of the terms above in the present application can be understood by a person skilled in the art in accordance with specific conditions.
In the embodiments of the present application, unless otherwise expressly specified and defined, a first feature is "on" or "under" a second feature can refer to that the first feature is directly contacted with the second feature, or the first feature is indirectly contacted with the second feature through an intermediate medium. In addition, the first feature is "on", "above" and "over" the second feature can refer to that the first feature is directly above or obliquely above the second feature, or simply refer to that the level height of the first feature is higher than that of the second feature. The first feature is "under", "below" and "beneath" the second feature can refer to that the first feature is directly below or obliquely below the second feature, or simply refer to that the level height of the first feature is lower than that of the second feature.
In the description of this specification, description with reference to the terms "one embodiment", "some embodiments", "an example", "specific example", "some examples" and the like, refers to that specific features, structures, materials or characteristics described in combination with an embodiment or an example are included in at least one embodiment or example according to the embodiments of the present application. In this specification, schematic representations of the above terms are not necessarily directed to a same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.
A shift regulation apparatus 1 and a base station antenna provided by the present application will be described in the following with reference to FIG. 1 to FIG. 10.
In order to solve a problem of a traditional antenna transmission adjustment mechanism with complex transmission, large space occupation and high use cost, the present application provides the shift regulation apparatus 1 and the base station antenna. Since the main object of the present application lies in the shift regulation apparatus 1, the related structure of the base station antenna will not be described.
The present application provides a shift regulation apparatus 1, which includes a mounting base 2, where the mounting base 2 is provided with a mounting cavity 6; a shift transmission unit 3, including at least one transmission portion 9 provided in the mounting cavity 6, where the transmission portion 9 includes a plurality of output members 13, and each of the output members 13 corresponds to one antenna; a shift switching unit 4, including a selection driver portion 10 provided in the mounting cavity 6 and a selection portion 11 corresponding to the transmission portion 9, where the selection driver portion 10 is drivingly connected to the selection portion 11, and the selection portion 11 selects the corresponding output member 13 in the transmission portion 9; and a shift drive unit 5, including a drive portion 12 provided on the mounting base 2 and corresponding to the transmission portion 9, where the drive portion 12 is configured to drive a corresponding selection portion 11 to drive the corresponding output member 13.
It should be noted that the shift regulation apparatus 1 provided in the first embodiment of the present application includes one transmission portion 9, and the shift regulation apparatus 1 according to a second embodiment and a third embodiment includes two (a plurality of) transmission portions 9. Each transmission portion 9 can correspond to a plurality of antenna, and antennas corresponding to the plurality of transmission portions 9 are more. In the present application, selection portions 11 corresponding to transmission portions 9 is provided, and each selection portion 11 can select antennas in transmission portion 9 corresponding to each selection portion 11. In the related art, a plurality of selection driver portions 10 are provided to drive different selection portions 11 respectively. In a solution provided by the present application, one selection driver portion 10 only needs to drive one selection portion 11, which can be a first selection portion 11, or a last selection portion 11. Under this linkage mechanism, each selection portion 11 will correspond to one antenna. Since the shift regulation apparatus 1 provided by the present application includes a plurality of drive portions 12 corresponding to the selection portions 11, when a certain antenna needs to be selected, only a corresponding drive portion 12 needs to be driven.
The shift regulation apparatus 1 provided by the present application has a compact structure. Through the cooperation of the shift transmission unit 3, the shift switching unit 4 and the shift drive unit 5, a plurality sets of power can be selectively output by only one selection driver portion 10, which has small space occupation, is beneficial to miniaturizing and thinning a multiband integrated antenna, is more beneficial to reduce the cost, and can improve the working efficiency of the shift regulation apparatus 1.
In an embodiment, the transmission portion 9 includes a transmission shaft 14 provided in the mounting cavity 6 and a plurality of transmission gears 15 provided on the transmission shaft 14. Referring to FIG. 2 and FIG. 3, the transmission shaft 14 extends along a length direction of the mounting base 2, and the transmission gears 15 are provided at intervals along the length direction of the mounting base 2. Each transmission gear 15 is rotatable along an axial direction of the transmission shaft, and each transmission gear 15 is respectively drivingly connected to one of the output members 13. The selection portion 11 includes at least one selection gear 19, and the selection driver portion 10 is drivingly connected to the selection gear 19, and the selection gear 19 is moveable along an axial direction of the transmission shaft 14 of a corresponding transmission portion 9. During the moving of the selection gear 19, the selection gear 19 will sequentially be meshed with the plurality of transmission gears 15 on a corresponding transmission shaft 14, to select antennas correspondingly.
As mentioned above, at least one selection gear 19 is included, and one selection gear 19 is included in the simplest embodiment. This selection gear 19 only needs to be meshed with each transmission gear 15 in sequence, but this arrangement is more suitable for a case in which less number of transmission gears 15 are provided on one transmission shaft 14, for example, when only three or four transmission gears 15 are provided on one transmission shaft 14, the length of the transmission shaft 14 can be controllable, and the one selection gear 19 can also meet driving demands. However, when more than five, for example, eight or ten transmission gears 15 are provided on one transmission shaft 14, the length of the transmission shaft 14 will be longer, and the moving path of the selection gear 19 will be very long, which is not conducive to driving the selection gear 19 and simplifying a driving source. Therefore, when the number of transmission gears 15 is large, that is, when there are many antennas corresponding to one transmission portion 9, a plurality of selection gears 19 can be provided in one selection portion 11, so that each selection gear 19 corresponds to a plurality of output members 13 respectively. Therefore, in a solution provided by the present application, the selection portion 11 includes two selection gears 19, where one selection gear 19 corresponds to a part of the output members 13 in the transmission portion 9, and the other selection gear 19 corresponds to the remaining output members 13 in the transmission portion 9. When one selection gear 19 is meshed with one of the plurality of the transmission gears 15, the other selection gear 19 is located between another two of the plurality of transmission gears 15. Referring to FIG. 3, taking the first embodiment as an example, one transmission shaft 14 is provided with eight transmission gears 15. In an initial state, one selection gear 19 and a first transmission gear 15 are arranged in parallel and the other selection gear 19 is provided between a fourth transmission gear 15 and a fifth transmission gear 15, that is, a first selection gear 19 corresponds to the first four antennas, and a selection gear 19 corresponds to the last four antennas. Through this arrangement, each selection gear 19 is only configured to control half of the transmission gears 15 in the transmission shaft 14, and each selection gear 19 only needs to move half of the distance in the whole process. Compared to adopting a single selection gear l(if a single selection gear is adopted, the single selection gear 19 needs to mesh with all transmission gears 15, and the single selection gear 19 needs to travel the entire length of the transmission shaft 14), the length of the shift regulation apparatus 1 can be shortened through this arrangement. It should be noted that the number of the selection gears 19 can be more, for example, three, four, etc., but on the premise that the number of the selection gears 19 is increased, the spacing between the transmission gears 15 needs to be increased (which needs to ensured that when one transmission gear 15 is in a meshing state, other transmission gears 15 need to be in the spacing between other adjacent transmission gears 15), and it is preferable to provide two selection gears 19.
In an embodiment, the selection portion 11 includes a mounting shaft 20, the mounting shaft 20 and the corresponding transmission shaft 14 are arranged in parallel, the two selection gears 19 are provided on the mounting shaft 20 at intervals, each selection gear 19 is slidable along an axial direction of the mounting shaft 20 and is moveable along the axial direction of the mounting shaft 20. Each selection gear 19 is configured to select a corresponding transmission gear 15 during sliding, and is configured to drive a selected transmission gear 15 to rotate during rotating. It should be noted that a shaft hole of the selection gear 19 can be a polygon, and correspondingly, a shaft section of the mounting shaft can also be set to a polygon, so that the selection gear 19 is fixed at the current stage without external force, and can axially rotate with the rotating of the mounting shaft 20, to drive a corresponding transmission gear 15; and when there is an external force, the selection gear 19 can move on the mounting shaft 20 with the external force, to select the corresponding transmission gear 15.
It should be noted that the selection driver portion 10 is drivingly connected to the selection gears 19. When there are many selection gears 19, the selection driver portion 10 drives the plurality of selection gears 19 to move simultaneously, which can effectively simplify the driving source. In a solution provided by the present application, the selection portion 11 further includes a mounting sleeve 21 movably sleeved on the mounting shaft 20, two ends of the mounting sleeve 21 are respectively connected to two selection gears 19, and the selection driver portion is drivingly connected to the mounting sleeve 21 and configured to drive the mounting sleeve 21 to slide on the mounting shaft 20. The two selection gears 19 move synchronously with the moving of the mounting sleeve 21. Referring to FIG. 4, in a first state, the first selection gear 19 meshes with the first transmission gear 15, and the other selection gear 19 is provided between the fourth transmission gear 15 and the fifth transmission gear 15. If the mounting shaft 20 is driven, that is, the first selection gear 19 drives the meshed first transmission gear 15 to rotate, that is, a first antenna is output, referring to FIG. 5, the mounting sleeve 21 moves a certain distance, the first selection gear 19 is located between the first transmission gear 15 and a second transmission gear 15, the second selection gear 19 meshes with the fifth transmission gear 15. If the mounting shaft 20 is driven, that is, the second selection gear 19 drives the fifth transmission gear 15 to rotate, that is, a fifth antenna is output. In this setting mode, with the moving of the mounting sleeve 21, the antennas will not be out put in a set sequence. It should be noted that, this mode adopts a staggered meshing state of the two selection gears 19, and does not need to be added with an additional driving source. Outputs of all the antennas can be completed by driving one mounting shaft 20, which not only saves the cost, but also improves driving efficiency. In addition, it should also be noted that, the two ends of the mounting sleeve 21 extend to form a lock base, and the selection gear 19 is mounted on the lock base. The lock base plays a certain stage limiting function on the selection gear 19.
In an embodiment, the selection driver portion 10 needs to drive the mounting sleeve 21 to move. In a solution provided by the present application, the selection driver portion 10 includes a driving screw rod 16, a transmission nut 17 and a first driver 18. The driving screw rod 16 and a corresponding mounting shaft 20 are arranged in parallel, the transmission nut 17 is threadedly connected to the driving screw rod 16 and drivingly connected to the mounting sleeve 21, and the first driver 18 is drivingly connected to the driving screw rod 16. When the driving screw rod 16 rotates, the transmission nut 17 moves along the driving screw 16, then the mounting sleeve 21 is led to move, and the selection gear 19 is meshed completely with each transmission gear 15. It should be noted that, the selection driver portion 10 may further have other driving modes. For example, the mounting sleeve 21 may also be driven to move by a cylinder, but the cylinder may occupy large floor space. Other driving modes are not limited in the present application.
In an embodiment, an end of the driving screw 16 is provided with a first positioning block 27, and the transmission nut 17 is correspondingly provided with a second positioning block 29. The first positioning block 27 matches with the second positioning block 29 to position the transmission nut 17. It should be noted that, when the transmission nut 17 moves to the end of the driving screw 16, the first positioning block 27 and the second positioning block 29 are in contact with each other, and the transmission nut 17 cannot continue to move. This position can be regarded as a zero state, that is, the initial state of the device. After each time of regulation, the driving screw rod 16 is driven to find a zero state of the transmission nut 17, that is, the whole device can be restored to an initial zero state to prepare for the next regulation.
In an embodiment, the drive portion 12 includes a second driver 22, a drive switching member 23 and a first drive gear 24. The drive switching member 23 includes a switching shaft 34, and further includes a first bevel gear 35 and a second drive gear 36 provided at two ends of the switching shaft 34 respectively. The first drive gear 24 is provided at an end of the corresponding mounting shaft 20 and is meshed with the second drive gear 36, and the second driver 22 is drivingly connected to the first bevel gear 35. The matching of the bevel gear and the drive gear can change a transmission direction to ninety degrees, which can optimize an internal arrangement of the device.
In some cases, one transmission portion 9 may be unable to meet the demand, and a plurality of transmission portions 9 are required to provide more antennas. In a first arrangement mode, a plurality of transmission portions 9 are provided, and a plurality of drive portions 12 and a plurality of selection portions 11 are further provided. The plurality of transmission portions 9 are provided in sequence along a horizontal direction, mounting sleeves 21 of adjacent selection portions 11 are connected by a connecting rod 7 extending in the horizontal direction, the selection driver portion 10 is drivingly connected to a mounting sleeve 21 of a first selection portion 11 or a last selection portion 11, and each drive portion 12 is respectively drivingly connected to the mounting shaft 20 of the corresponding selection portion 11. This arrangement mode is suitable for mounting sites with large horizontal space. Referring to FIG. 7 and FIG. 8, in the case of two transmission portions 9, the two transmission portions 9 are provided in the horizontal direction. The selection driver portion 10 is drivingly connected to the first selection portion 11. Since the two mounting shafts 20 are connected by the connecting rod 7, the moving of the first mounting sleeve 21 will drive the moving of the second mounting sleeve 21. It can be seen that the selection gears 19 on the two mounting shaft 20 have the same arrangement. It should be noted that when the selection driver portion 10 is driven, the two selection portions 11 will correspond to one antenna. Since two antennas are driven by different drive portions 12, it only needs to select the corresponding drive portion 12 to drive the corresponding antenna. It should also be noted that an upper end surface of the mounting base 2 is provided with an avoidance groove 37 for the moving of the connecting rod 7.
In a second arrangement mode, a plurality of transmission portions 9 are provided, and a plurality of drive portions 12 and a plurality of selection portions 11 are further provided. The plurality of transmission portions 9 are provided in sequence along a vertical direction, mounting sleeves 21 of adjacent selection portions 11 are connected by a connecting block 8 extending in the vertical direction, the selection driver portion 10 is drivingly connected to the mounting sleeves 21 of a first selection portion 11 or a last selection portion 11, and each drive portion 12 is respectively drivingly connected to the mounting shaft 20 of the corresponding selection portion 11. This arrangement mode is suitable for mounting sites with large vertical space. Referring to FIG. 9 to FIG. 10, in the case of two transmission portions 9, the two transmission portions 9 are provided in the vertical direction. The selection driver portion 10 is drivingly connected to the first selection portion 11 located at the bottom. Since the two mounting shafts 20 are connected by the connecting block 8, the moving of the first mounting sleeve 21 will drive the moving of the second mounting sleeve 21. It can be seen that the selection gears 19 on the two mounting shafts 20 have the same arrangement. Similar to the previous arrangement mode, when the selection driver portion 10 is driven, the two selection portions 11 will correspond to one antenna. Since two antennas are driven by different drive portions 12, it only needs to select the corresponding drive portion 12 to drive the corresponding antenna.
In an embodiment, an end of the driving screw 16 is provided with a second bevel gear 28, and the first driver 18 includes a first drive rod 30 penetrating through a side wall of the mounting cavity 6 and a first spur gear 31 provided on the first drive rod 30. The first spur gear 31 is meshed with the second bevel gear 28. Each output member 13 includes an output shaft 25 and a third bevel gear 26 provided on the output shaft 25. Each third bevel gear 26 is respectively meshed with the corresponding transmission gear 15, and each output shaft 25 penetrates through a side wall of the mounting cavity 6. It should be noted that a form of meshing a bevel gear with a spur gear is adopted in the device, which can convert a driving direction from a linear direction to a vertical direction, which is more conducive to the compact arrangement of the device. It should also be noted that the arrangement of the second driver 22 is similar to that of the first driver 18, and further includes a second drive rod 32 and a second spur gear 33.
In an embodiment, the mounting cavity 6 is provided with a plurality sets of limiting bases, and the plurality sets of limiting bases are distributed at intervals along a length direction of the transmission shaft 14. It should be noted that, in a solution provided by the preset application, the transmission shaft 14 is fixed and cannot rotate, and only the transmission gear 15 rotates. Referring to FIG. 2, each set of limiting bases includes a first limiting base 38 and a second limiting base 39 provided opposite to each other, the transmission gear 15 is provided between the corresponding first limiting base 38 and the second limiting base 39, to limit the linear moving of the transmission gear 15 in the axial direction of the transmission shaft 14. In addition, the first limiting base 38 is provided with a mounting hole, the second limiting base 39 is provided with a mounting groove, and the transmission shaft 14 is provided in the mounting groove and passes through the mounting hole, the transmitting of the transmission shaft 14 can be effectively restricted by this arrangement of the limiting base.
The following takes the first embodiment as an example to describe a work flow of the shift regulation apparatus 1 provided by the present application.
First, the first drive rod 30 is driven to rotate forward or reverse, and then the first spur gear 31, the second bevel gear 28 and the driving screw rod 16 are driven to rotate in corresponding rotational directions in sequence, and the transmission nut 17 is driven to correspondingly move forward in an axial direction or move linearly backward (the zero state can be at the end of the driving screw rod 16 or at a middle of the driving screw rod 16), and the first positioning block 27 is in contact with the second positioning block 29, that is, the shift regulation apparatus 1 reaches a zero initial stage. The first drive rod 30 is controlled in a same way to rotate for a set number of turns (each set number of turns corresponds to an antenna), and the two selection gears 19 can be driven to move linearly along the axial direction of the mounting shaft 20, so that the first selection gear 19 stops after being meshed with a certain transmission gear 15. The second driver 22 is then driven to rotate forward or reversely, and the first bevel gear 35, the second drive gear 36 and the first drive gear 24 can be driven to rotate in sequence. The first drive gear 24 is provided at the end of the mounting shaft 20, and the selection gear 19 is also driven to drive the corresponding transmission gear 15 to rotate in the corresponding rotational direction, the corresponding output member 13 is driven to rotate, the output member 13 is connected with a phase shifter for adjusting a down-tilt angle of an antenna, and a first group of antenna phase shifters are adjusted.
After the first group of antenna phase shifters is completely adjusted, the driving of the second driver 22 is stopped. The first drive rod 30 is driven to rotate again, and the zero initial stage of the shift regulation apparatus 1 is obtained, the first drive rod 30 is controlled in a same way to rotate for a set number of turns, and the two selection gears 19 can be driven to move linearly along the axial direction of the mounting shaft 20, and the selection gear 19 stops after being meshed with other transmission gears 15. The second driver 22 is then driven to rotate forward or reverse, and the first bevel gear 35, the second drive gear 36 and the first drive gear 24 can be driven to rotate in sequence. The first drive gear 24 is provided at the end of the mounting shaft 20, and the selection gear 19 is also driven to drive the corresponding transmission gear 15 to rotate in the corresponding rotational direction, the corresponding output member 13 is led to rotate, the output member 13 is connected with a phase shifter for adjusting a down-tilt angle of an antenna, and a second group of antenna phase shifters are adjusted.
Similarly, the first drive rod 30 can make the two selection gears 19 be selectively meshed with all the transmission gears 15, and then the second driver 22 is driven to adjust forward or reversely, and all the phase shifters are adjusted, which can adjust a plurality of antenna phase shifters by using only two power sources. It should be noted that the usage of a plurality of selection driver portions 10 is similar to the above. When the selection driver portion 10 is driven, the plurality of selection portions 11 will correspond to one antenna. Since the plurality of antennas are driven by different drive portions 12, it only needs to select the corresponding drive portion 12 to drive the corresponding antenna.
It should be noted that, in the case where there is only one selection driver portion 10, shaft centers of screws, gears and other components used in the shift regulation apparatus 1 can all be arranged on the same level, and the thickness of the entire shift regulation apparatus 1 can be very thin. Compared to a "cylinder-like" layout or regulation components in a same field with a staggered height-space stacking scheme, it has more advantages in height. In the case of a plurality of selection driver portions 10, the shaft centers of the screws, gears and other components used in each layer or each unit can be arranged on the same level, which can also optimize the overall layout and improve the compactness effect of the device.
Finally, it should be noted that the above embodiments are only used to illustrate the solutions of the present application, but not to limit them; although the present application has been described in detail in conjunction with the foregoing embodiments, those of ordinary skilled in the art should understand: modifications can be made to the solutions described in the foregoing embodiments, or some features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding solutions depart from the scope of the solutions of the embodiments of the present application.

Claims

A shift regulation apparatus, comprising:
a mounting base, provided with a mounting cavity;

a shift transmission unit, comprising at least one transmission portion provided within the mounting cavity, wherein the transmission portion comprises a plurality of output members, and each of the output members corresponds to an antenna;

a shift switching unit, comprising a selection driver portion provided in the mounting cavity and a selection portion corresponding to the transmission portion, wherein the selection driver portion is drivingly connected to the selection portion to enable the selection portion to select an output member in a corresponding transmission portion; and

a shift drive unit, comprising a drive portion provided on the mounting base and corresponding to the transmission portion, wherein the drive portion is configured to drive a corresponding selection portion to drive a corresponding output member.
The device according to claim 1, wherein the transmission portion comprises a transmission shaft provided in the mounting cavity and a plurality of transmission gears provided on the transmission shaft, each transmission gear is rotatable along an axial direction of the transmission shaft, and each transmission gear is respectively drivingly connected to one of the output members.
The device according to claim 2, wherein the selection portion comprises at least one selection gear, the selection driver portion is drivingly connected to the selection gear, such that the selection gear is moveable along an axial direction of the transmission shaft of a corresponding transmission portion, and the selection gear is configured to switch to select the transmission gear in the corresponding transmission portion during moving.
The device according to claim 3, wherein the selection portion comprises two selection gears, one selection gear corresponds to a part of the output members in the transmission portion, the other selection gear corresponds to remaining output members in the transmission portion, and when one of the selection gears is meshed with one of the plurality of transmission gears, the other selection gear is located between another two of the plurality of transmission gears.
The device according to claim 4, wherein the selection portion comprises a mounting shaft, the mounting shaft and a corresponding transmission shaft are arranged in parallel, the two selection gears are provided on the mounting shaft at intervals, each selection gear is slidable along an axial direction of the mounting shaft and is moveable along the axial direction of the mounting shaft; and
each selection gear is configured to select a corresponding transmission gear during sliding, and is configured to drive a selected transmission gear to rotate during rotating.
The device according to claim 5, wherein the selection portion further comprises a mounting sleeve movably sleeved on the mounting shaft, two ends of the mounting sleeve are respectively connected to selection gears, and the selection driver portion is drivingly connected to the mounting sleeve and configured to drive the mounting sleeve to slide on the mounting shaft.
The device according to claim 6, wherein the selection driver portion comprises a driving screw rod, a transmission nut and a first driver, the driving screw rod and a corresponding mounting shaft are arranged in parallel, the transmission nut is threadedly connected to the driving screw rod and drivingly connected to the mounting sleeve, and the first driver is drivingly connected to the driving screw rod and configured to drive the driving screw rod to rotate.
The device according to claim 7, wherein an end of the driving screw rod is provided with a first positioning block, the transmission nut is provided with a second positioning block, and the first positioning block matches with the second positioning block to position the transmission nut.
The device according to claim 7, wherein the drive portion comprises a second driver, a drive switching member and a first drive gear,
wherein the drive switching member comprises a switching shaft and further comprises a first bevel gear and a second drive gear provided at two ends of the switching shaft respectively, the first drive gear is provided at an end of the corresponding mounting shaft and is meshed with the second drive gear, and the second driver is drivingly connected to the first bevel gear.
The device according to claim 7, wherein a plurality of transmission portions are provided, and a plurality of selection portions and a plurality of drive portions are further provided,
wherein the plurality of the transmission portions are provided in sequence along a horizontal direction, mounting sleeves of adjacent selection portions are connected by a connecting rod extending in the horizontal direction, and the selection driver portion is drivingly connected to a mounting sleeve of a first selection portion or a last selection portion, and each drive portion is drivingly connected to the mounting shaft of a corresponding selection portion.
The device according to claim 7, wherein a plurality of transmission portions are provided, and a plurality of selection portions and a plurality of drive portions are further provided,
wherein the plurality of the transmission portions are provided in sequence in a vertical direction, mounting sleeves of adjacent selection portions are connected by a connecting block extending in the vertical direction, and the selection driver portions are drivingly connected to the mounting sleeve of the first selection portion or the last selection portion, and each drive portion is drivingly connected to the mounting shaft of the corresponding selection portion.
The device according to claim 7, wherein an end of the drive screw is provided with a second bevel gear, the first driver comprises a first drive rod penetrating through a side wall of the mounting cavity and a first spur gear provided on the first drive rod, the first spur gear is meshed with the second bevel gear.
The device according to claim 2, wherein each output member comprises an output shaft and a third bevel gear provided on the output shaft, each third bevel gear is meshed with a corresponding transmission gear, and each output shaft penetrates through a side wall of the mounting cavity.
The device according to claim 2, wherein the mounting cavity is provided with a plurality of sets of limiting bases, and the plurality of sets of limiting bases are distributed at intervals along a length direction of the transmission shaft;
each set of limiting bases comprises a first limiting base and a second limiting base provided opposite to each other, each transmission gear is provided between a corresponding first limiting base and a corresponding second limiting base, the first limiting base is provided with a mounting hole, the second limiting base is provided with a mounting groove, and both the mounting groove and the mounting hole are configured to limit rotation of the transmission shaft.
A base station antenna, comprising the shift regulation apparatus according to any one of claims 1-14.