A multi-system antenna electrical downtilt angle control device and antenna

Abstract

The present invention relates to the field of wireless communications, and specifically to a multi-system antenna electrical downtilt angle control device and antenna, comprising a positioning assembly, a first transmission assembly and a second transmission assembly located on both sides of the positioning assembly and respectively provided with a plurality of power output components, and two groups of phase shifting assemblies for connecting with corresponding phase shifters for transmitting the phase shifters for adjustment and respectively provided with a plurality of transmission channel interfaces; when the positioning axis rotates in a first preset direction, only the target power output component in the first transmission assembly is driven to connect with the corresponding transmission channel interface, and when the positioning axis rotates in a second preset direction, only the target power output component in the second transmission assembly is driven to connect with the corresponding transmission channel interface. The antenna electrical downtilt angle control device created by the present invention can drive antennas of a large number of systems, and at the same time has a low cost. During the driving and adjustment process, the gears are always in a meshing state, so the stability is extremely high.

Description

Technical Field

[0001] The invention relates to the field of wireless communications, and in particular to a multi-system antenna electrical downtilt angle control device and an antenna. Background Art

[0002] In the field of mobile communications, it is often necessary to change the radiation surface of the antenna by adjusting the electrical downtilt angle of the base station antenna to adjust the network coverage area. The specific adjustment process is to drive the phase shifter through the transmission device to change the electrical downtilt angle of the base station antenna.

[0003] With the development of mobile communication technology, a multi-system transmission device using a dual-motor structure (one motor controls the position adjustment and the other motor controls the drive adjustment) is the mainstream solution currently adopted in the industry. According to the different layout characteristics of the drive structure, the current dual-motor structure antenna electrical downtilt angle control device mainly has two implementation methods: circular type and flat type.

[0004] The circular antenna electrical downtilt control device often drives multiple systems through a circularly distributed gear structure. The overall structure is compact, the number of transmission stages is small, and the transmission efficiency is high. The flat antenna electrical downtilt control device lays the drive module in the device flat in the antenna width direction and connects the motor input end to the drive module through a gear transmission. Under this structure, the connection span between the phase shifter and the transmission device is small, which is helpful for the transmission layout of the antenna product.

[0005] However, there are still some problems with the two forms of antenna electrical downtilt angle control devices in the application of specific antenna products: on the one hand, the circular structure can only be limited to driving a small number of phase shifter units under the condition of a fixed height space. For antennas of more systems, at least two sets of the transmission devices are required to be used simultaneously, which greatly increases the cost of the antenna. On the other hand, in engineering practice, the circular structure has poor layout matching with the phase shifter units required by the antenna. The transfer span from the control device to the phase shifter unit is large. The transmission driving force will cause the phase shifter sliding medium to be subjected to a relatively large additional torque under the superposition of the excessive transfer span, which will not only affect the smooth sliding of the sliding medium, but also may cause the guide structure of the sliding medium to break and fail under the action of excessive additional torque. At the same time, the effect of the additional torque is also easy to affect the accuracy of the phase adjustment of the phase shifter. The flat structure also has the problems of many transmission levels and low transmission efficiency, and the transmission efficiency and transmission accuracy achieved by each drive module are different, and the phase adjustment accuracy of the phase shifter is low.

[0006] In view of this, there is an urgent need to develop an antenna electrical downtilt angle control device that can achieve independent and precise control of the electrical downtilt angles of multiple antenna systems, with a compact structure, small adjustment error, flexible and diverse connection with phase shifters, good product layout and high reliability. Summary of the invention

[0007] The object of the present invention is to provide a multi-system antenna electrical downtilt angle control device and antenna, which can realize independent and precise control of the electrical downtilt angles of multiple antenna systems, and has a compact structure, small adjustment error, flexible and diverse connection with phase shifters, good product layout and high reliability.

[0008] To achieve the above object, the specific technical solution of a multi-system antenna electrical downtilt angle control device and antenna of the present invention is as follows:

[0009] A multi-system antenna electrical downtilt angle control device comprises a position selection component, a first transmission component and a second transmission component located on both sides of the position selection component and respectively provided with a plurality of power output components, and two groups of phase shifting components used to be connected with corresponding phase shifters for transmitting the phase shifters for adjustment and respectively provided with a plurality of transmission channel interfaces;

[0010] The plurality of power output components correspond one-to-one to the transmission channel interfaces and can be selectively connected to the corresponding transmission channel interfaces;

[0011] The positioning assembly includes a positioning shaft for connecting to a positioning motor and a one-way control mechanism arranged on the positioning shaft and respectively connected to the first transmission assembly and the second transmission assembly. When the positioning shaft rotates in a first preset direction, it only drives the target power output component in the first transmission assembly to connect to the corresponding transmission channel interface. When the positioning shaft rotates in a second preset direction, it only drives the target power output component in the second transmission assembly to connect to the corresponding transmission channel interface.

[0012] A further improvement is that the one-way control mechanism includes a first selection ratchet, a second selection ratchet, a first pawl group arranged on the selection shaft and clamped with the first selection ratchet, and a second pawl group clamped with the second selection ratchet, the first pawl group and the second pawl group each include a plurality of pawl pieces, the rotation direction of the pawl pieces of the first pawl group is opposite to the rotation direction of the pawl pieces of the second pawl group, the first transmission assembly is connected to the first selection ratchet in driving connection, and the second transmission assembly is connected to the second selection ratchet in driving connection.

[0013] A further improvement is that the outer circles of the first positioning ratchet and the second positioning ratchet are both cylindrical gear structures, and the interiors are both unidirectional internal tooth structures evenly distributed around the circumference. The unidirectional internal tooth structure is composed of a triangular array with long and short sides in cross-section, and the top of the pawl piece is against the short side of the triangle of the unidirectional internal tooth structure.

[0014] A further improvement is that: the first transmission component includes a first selection gear group and a first driving gear group, the first selection gear group includes a third selection gear, multiple selection parts, and a first selection gear that is respectively connected to the one-way control mechanism and the third selection gear in the first selection gear group; the second transmission component includes a second selection gear group and a second driving gear group; the second selection gear group includes a third selection gear, multiple selection parts, and a second selection gear that is respectively connected to the one-way control mechanism and the third selection gear in the second transmission component; one end of the multiple selection parts is correspondingly mounted on multiple power output components; the third selection gear includes a cylindrical gear structure and a selection structure arranged on the cylindrical gear structure; when the third selection gear rotates, the selection structure touches the selection part, converting the circular motion of the selection structure into the axial linear motion of the selection part, thereby pushing the target power output component to connect with the corresponding transmission channel interface.

[0015] A further improvement is that the positioning structure is a long handle structure with an inclined top which is arranged at one end of the cylindrical gear structure and extends out of the circumferential surface of the gear; the positioning member is a positioning inclined top block with a shovel-shaped cross-section, comprising a shovel head and a shovel handle; the shovel head comprises a shovel top surface and two inclined top surfaces symmetrically arranged along the central plane of the shovel top surface; the shovel handle is a cylindrical pin structure for being assembled with a power output component; the inclined top surface of the shovel head of the positioning inclined top block corresponds to the inclined top surface of the inclined top long handle structure of the positioning structure.

[0016] A further improvement is that: the first transmission assembly also includes a box seat body assembly for installing the first positioning gear set and the first driving gear set; the second transmission assembly also includes a box seat body assembly for installing the second positioning gear set and the second driving gear set; the box seat body assembly includes a box seat body, a box front cover and a box rear cover.

[0017] A further improvement is that an inner wall is provided in the middle of the box seat body to divide the box seat body into a power channel selection area and a power output area, a circular hole penetrating the inner wall and a plurality of lantern-shaped special-shaped holes evenly distributed around the circumference of the circular hole for fitting the positioning inclined top block, the positioning inclined top block can slide straightly along its axis in the lantern-shaped special-shaped hole but cannot rotate, and cylindrical bosses are provided on the circumference of the circular hole in the power channel selection area and the power output area to serve as the mounting axis of the third positioning gear.

[0018] A further improvement is that a notch is provided on the side of the power channel selection area of ​​the box seat body, which passes through the front end mounting surface of the box seat body, and a lug structure is provided on the bottom plane of the notch. The lug structure of the box seat body in the first transmission assembly is used to install the first selection gear, and the lug structure of the box seat body in the second transmission assembly is used to install the second selection gear.

[0019] A further improvement is that: in the first transmission assembly, the first driving gear set includes a power-driven rotating shaft, a first driving wheel sleeved on the first selection gear, a first driven wheel sleeved on the third selection gear and transmission-connected to the first driving wheel, and a second driven wheel sleeved on the cylindrical boss in the power output area of ​​the box seat body and transmission-connected to a plurality of power output components. The front and rear ends of the power-driven rotating shaft are rotatably sleeved in the center holes of the front cover and the rear cover in the box seat body assembly, and are transmission-connected to the first driven wheel and the second driven wheel respectively; in the second transmission assembly, the second driving gear set includes a power-driven rotating shaft, a second driving wheel sleeved on the second selection gear, a first driven wheel sleeved on the third selection gear and transmission-connected to the second driving wheel, and a second driven wheel sleeved on the cylindrical boss in the power output area of ​​the box seat body and transmission-connected to a plurality of power output components. The front and rear ends of the power-driven rotating shaft are rotatably sleeved in the center holes of the front cover and the rear cover in the box seat body assembly, and are transmission-connected to the first driven wheel and the second driven wheel respectively.

[0020] A further improvement is that: the power output component includes a third driven wheel transmission-connected to the second driven wheel, the rear cover is provided with a plurality of through holes corresponding to the position of the transmission channel interface, a pin hole is formed at one end of the third driven wheel for being mounted with the positioning inclined top block in the form of a hole shaft, the other end is a pin shaft structure, and a power output interface is provided at the outer end of the pin shaft for selectively connecting to the transmission channel interface through the through hole, a spring is provided on the pin shaft between the end face of the third driven wheel and the rear cover plane of the box seat body assembly, for resetting the third driven wheel after the positioning structure leaves the positioning inclined top block so as to separate the transmission channel interface from the power output interface.

[0021] A further improvement is that: an optical axis section is provided on the positioning shaft, and a power transmission wheel is mounted on the optical axis section, and the power transmission wheel is respectively connected to the first driving wheel and the second driving wheel in a transmission manner, and the power transmission wheel is an idler wheel, that is, it can rotate freely on the positioning shaft, and the rotation of the positioning shaft has no effect on it, and the first driving wheel or the second driving wheel is used for connecting to the driving motor in a transmission manner, so as to realize adjustment by synchronously driving the first driving gear group and the second driving gear group by a driving motor.

[0022] A further improvement is that the phase-shifting assembly includes a front support plate, a rear support plate, multiple groups of phase-shifting screws, and multiple groups of threaded sliders. The front support plate and the rear support plate are provided with multiple groups of circumferentially distributed positioning holes, the positions of the positioning holes correspond one-to-one to the positions of the power output components of the first transmission assembly and the second transmission assembly, the front and rear ends of the phase-shifting screw are rotatably sleeved in the positioning holes of the front support plate and the rear support plate respectively, the front end of the phase-shifting screw is provided with a transmission channel interface, the threaded slider is arranged corresponding to the phase-shifting screw, the circumferential rotation of the screw drives the threaded slider to move forward and backward along the axial direction, and the threaded slider is connected to the corresponding phase shifter for transmitting the phase shifter for adjustment.

[0023] An antenna comprises a multi-system antenna electrical downtilt angle control device as described in any one of the above.

[0024] Beneficial effects of the present invention:

[0025] (1) The antenna electrical downtilt angle control device created by the present invention can drive antennas of a large number of systems while having a low cost.

[0026] (2) In the antenna electrical downtilt angle control device created by the present invention, the gears are always in meshing state during the driving and adjusting process, so the stability is extremely high.

[0027] (3) The antenna electrical downtilt angle control device created by the present invention can simultaneously drive two sets of preset systems that need to be driven, greatly reducing the time required to adjust the tilt angle.

[0028] (4) The antenna electrical downtilt angle control device created by the present invention can flexibly select the connection position for a system with a small number of antennas, making the connection flexibility with the phase shifter extremely high.

[0029] (5) In the antenna electrical downtilt angle control device created by the present invention, the installation position of the drive motor has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front perspective view of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention;

[0031] Figure 2 An exploded view of a position selection component of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention;

[0032] Figure 3 An exploded view of a first transmission assembly of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention;

[0033] Figure 4 An exploded view of a second transmission assembly of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention;

[0034] Figure 5 This is a structural diagram of a box seat assembly of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention;

[0035] Figure 6 The present invention is a structural diagram of a phase shifting component of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-position selection assembly, 2-first transmission assembly, 3-second transmission assembly, 4-phase shift assembly, 12-mechanism mounting seat, 23-power drive shaft, 24-box seat body assembly, 41-front support plate, 42-rear support plate, 43-phase shift screw, 44-threaded slider, 110-position selection shaft, 111-first position selection ratchet, 112-second position selection ratchet, 113-power transmission wheel, 210-first position selection gear, 211-third position selection gear, 212-position selection inclined top block, 220-first driving wheel, 221-first driven wheel, 222-second driven wheel, 223-third driven wheel, 224-spring, 240-box seat body , 241-front cover, 242-rear cover, 310-second selection gear, 320-second driving wheel, 430-hole-tooth female coupling interface, 1100-first pawl group, 1101-second pawl group, 1102-pawl piece, 1103-clamping hole, 1110-one-way internal teeth, 2110-cylindrical gear structure, 2111-selection structure, 2120-shovel head, 2121-shovel handle, 2230-pin-tooth male coupling interface, 2400-inner wall, 2401-power channel selection area, 2403-round hole, 2404-lantern-shaped special-shaped hole, 2405-cylindrical boss, 2406-notch, 2407-lug. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0039] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "transmission-connected" to another element, the two can achieve power transmission, and its specific implementation method can be implemented using the existing technology, which will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0042] Please refer to the attached Figure 1-6 An embodiment of the present invention proposes a multi-system antenna electrical downtilt angle control device, including a positioning component, a first transmission component 1 and a second transmission component 2 located on both sides of the positioning component and respectively provided with multiple power output components, and two groups of phase shifting components 4 used to be connected to corresponding phase shifters for transmitting the phase shifters for adjustment and respectively provided with multiple transmission channel interfaces.

[0043] The positioning assembly includes a positioning shaft 110 for connecting to a positioning motor (not shown in the figure) and a one-way control mechanism arranged on the positioning shaft 110 and respectively connected to the first transmission assembly 2 and the second transmission assembly 3. When the positioning shaft 110 rotates in a first preset direction, it only drives the target power output component in the first transmission assembly 2 to connect with the corresponding transmission channel interface. When the positioning shaft 110 rotates in a second preset direction, it only drives the target power output component in the second transmission assembly 3 to connect with the corresponding transmission channel interface.

[0044] The plurality of power output components correspond one-to-one to the transmission channel interfaces and can be selectively connected to the corresponding transmission channel interfaces.

[0045] The specific structure of a multi-system antenna electrical downtilt angle control device according to an embodiment of the present invention is described in detail below:

[0046] like Figure 1 As shown, the multi-system antenna electrical downtilt angle control device of the present invention comprises a position selection component 1, a first transmission component 2, a second transmission component 3 and two groups of phase shift components 4 distributed on both sides of the position selection component 1, wherein one group of phase shift components 4 is connected with the first transmission component 2, and the other group of phase shift components 4 is connected with the second transmission component 3. The position selection component 1 can realize the selection of two driving directions, forward and reverse, through the built-in ratchet-pawl mechanism, and thereby realize the meshing transmission of the preset position selection mechanism in the first transmission component 2 and the second transmission component 3, and then realize the transmission channel interface selection of the connected phase shift component 4, and realize the power output through the transmission mechanism built-in the first transmission component 2 and the second transmission component 3.

[0047] like Figure 2 As shown, the position selection assembly 1 includes a power mechanism and a mechanism mounting seat 12, wherein the power mechanism includes a position selection shaft 110, a one-way control mechanism and a power transmission wheel 113 mounted on the position selection shaft 110, specifically, the one-way control mechanism includes a first position selection ratchet 111, a second position selection ratchet 112, a first pawl group 1100 arranged on the position selection shaft 110 and clamped with the first position selection ratchet 111, and a second pawl group 1101 clamped with the second position selection ratchet 112, the first pawl group 1100 and the second pawl group 1101 each include a plurality of pawl pieces 1102, the rotation direction of the pawl pieces 1102 of the first pawl group 1100 is opposite to the rotation direction of the pawl pieces 1102 of the second pawl group 1101, the first transmission assembly 2 is transmission-connected with the first position selection ratchet 111, and the second transmission assembly 3 is transmission-connected with the second position selection ratchet 112. The mechanism mounting seat 12 includes an upper cover and a lower cover 121.

[0048] Specifically, the main body of the position selection shaft 110 is a cylindrical structure, and a first pawl group 1100 and a second pawl group 1101 are arranged at intervals in the axial direction, and the first pawl group 1100 and the second pawl group 1101 both include a plurality of pawl pieces 1102 uniformly distributed around the main body axis. Generally, in order to enable the pawl group to transmit power evenly, the first pawl group 1100 and the second pawl group 1101 include the same number of pawl pieces 1102, and the number of pawl pieces 1102 is generally preferably ≥ 3. Specifically, those skilled in the art can also set the specific number of pawl pieces 1102 according to actual needs.

[0049] In a preferred solution of the embodiment of the present invention, in order to better ensure the stability of power transmission and the positioning accuracy, the first pawl group 1100 and the second pawl group 1101 are integrally formed with the positioning shaft 110 by injection molding.

[0050] In a preferred solution of the embodiment of the present invention, the two ends of the positioning shaft 110 are provided with shaft shoulder sections, which are used to cooperate with the upper cover and the lower cover of the mechanism mounting seat 12 to complete the restriction of the axial freedom of the positioning shaft 110 and ensure that the positioning shaft 110 can rotate freely in the mechanism mounting seat 12. At the same time, the two ends of the positioning shaft 110 are provided with clamping holes 1103, which are used to be sleeved with the power shaft of the positioning motor (not shown in the figure).

[0051] Specifically, in the embodiment of the present invention, an optical axis section is provided on the position selection shaft 110, and a power transmission wheel 113 is mounted on the optical axis section. The power transmission wheel 113 is an idler wheel, that is, it can rotate freely on the position selection shaft 110, and the rotation of the position selection shaft 110 has no effect on it. The first driving wheel 220 or the second driving wheel 320 is used to be connected to the driving motor in a driving manner, so as to achieve adjustment by synchronously driving the first driving gear set and the second driving gear set through a driving motor.

[0052] In a preferred solution of the embodiment of the present invention, the first position selecting ratchet 111 and the second position selecting ratchet 112 are both cylindrical gear structures in outer circles, and are both circumferentially uniformly distributed unidirectional internal teeth 1110 in inner circles.

[0053] Specifically, the one-way internal tooth 1110 structure of the first position selection ratchet 111 and the second position selection ratchet 112 is composed of a triangular array with long and short sides in cross section, wherein the long side facilitates the rotation and exit of the pawl piece 1102 without causing the first position selection ratchet 111 and the second position selection ratchet 112 to rotate, and the short side is the rotational power driving position of the first position selection ratchet 111 and the second position selection ratchet 112.

[0054] In particular, the top end of the pawl piece 1102 in the pawl group needs to abut against the short side of the triangle of the one-way internal tooth 1110 structure of the ratchet wheel, so as to realize the rotational drive of the ratchet wheel.

[0055] like Figure 3 , Figure 4 and Figure 5 As shown, the first transmission assembly 2 and the second transmission assembly 3 are key modules for power channel selection and power output of the device. The first transmission assembly 2 includes a first position selection gear set, a first drive gear set, and a box seat assembly 24; the second transmission assembly 3 includes a second position selection gear set, a second drive gear set, and a box seat assembly 24. The first drive gear set and the second drive gear set each include a power drive shaft 23.

[0056] The box seat assembly 24 includes a box seat body 240, a box front cover 241 and a box rear cover 242, which are used to respectively provide installation for various functional parts in the first transmission assembly 2 and the second transmission assembly 3.

[0057] Furthermore, the box seat body 240 is an outer shell with openings at both ends, and an inner wall 2400 is arranged in the middle to divide the box seat body into two front and rear cavity areas, namely the power channel selection area 2401 at the front end and the power output area at the rear side.

[0058] Furthermore, a circular hole 2403 and a plurality of lantern-shaped special-shaped holes 2404 evenly distributed around the circumference of the circular hole 2403 are provided on the middle inner wall 2400 of the box seat body 240, and the circular hole 2403 and the lantern-shaped special-shaped holes 2404 both penetrate the middle inner wall 2400 on the box seat body 240.

[0059] Cylindrical bosses 2405 are provided on the circumference of the circular hole 2403 in the front power channel selection area 2401 and the rear power output area, which serve as mounting axes for the third selection gear 211 in the first selection gear group, the third selection gear 211 in the second selection gear group, the second driven wheel 222 in the first driving gear group, and the second driven wheel 222 in the second driving gear group.

[0060] In a preferred solution of the embodiment of the present invention, the symmetry center planes of the lantern-shaped special-shaped holes 2404 all pass through the center of the circular hole 2403 .

[0061] Preferably, in order to obtain more power channels in a limited space, the number of the lantern-shaped special-shaped holes 2404 in the first transmission assembly 2 and the second transmission assembly 3 should generally not be less than 8. Those skilled in the art can set the specific number of the lantern-shaped special-shaped holes 2404 in the first transmission assembly 2 and the second transmission assembly 3 according to actual needs, and the embodiment of the present invention is not limited here.

[0062] A notch 2406 penetrating to the front mounting surface of the box seat body 240 is provided on both sides of the power channel selection area 2401 of the box seat body 240, and a lug structure 2407 is provided on the bottom plane of the notch 2406. In particular, the specific size of the notch 2406 should be determined according to the specific position of the first position selection gear set, the second position selection gear set, the first drive gear set, the second drive gear set and the position selection assembly 1.

[0063] In the embodiment of the present invention, in the first transmission assembly 2, the first position selection gear set includes a first position selection gear 210, a third position selection gear 211 and a plurality of position selection members arranged on the lug structure 2407 of the box seat body 240, and specifically, the position selection member is a position selection inclined ejector block 212. Correspondingly, in the second transmission assembly 3, the second position selection gear set includes a second position selection gear 310, a third position selection gear 211 and a plurality of position selection members arranged on the lug structure 2407 of the box seat body 240, and specifically, the position selection member is a position selection inclined ejector block 212.

[0064] In the first position selection gear set, the first position selection gear 210 is respectively connected to the first position selection ratchet 111 in the one-way control mechanism and the third position selection gear 211 in the first position selection gear set. In the second position selection gear set, the second position selection gear 310 is respectively connected to the second position selection ratchet 112 in the one-way control mechanism and the third position selection gear 211 in the second position selection gear set, and one end of the plurality of position selection inclined ejector blocks 212 is mounted one by one with the plurality of power output components.

[0065] Specifically, the first position selection gear 210 and the second position selection gear 310 are both cylindrical gear structures, one central end of which is a pin shaft structure for forming a hole-shaft type fit with the circular hole on the lug structure 2407 provided on the box seat body 240, and the other central end is a cylindrical boss structure for forming a simple hole-shaft type fit with the relevant gears in the first driving gear group and the second driving gear group.

[0066] Specifically, in the embodiment of the present invention, the first position selection gear 210 is meshed and connected with the first position selection ratchet 111 in the position selection assembly 1, so as to drive the preset mechanism in the first transmission assembly 2 to select the transmission channel interface. Correspondingly, the second position selection gear 310 is meshed and connected with the second position selection ratchet 112 in the position selection assembly 1, so as to drive the preset mechanism in the second transmission assembly 3 to select the transmission channel interface.

[0067] Specifically, in the embodiment of the present invention, the third position selection gear 211 includes a cylindrical gear structure 2110 and a position selection structure 2111. The position selection structure 2111 is a long handle structure with an inclined top that is arranged at one end of the cylindrical gear structure 2110 and extends out of the circumferential surface of the gear. When the third position selection gear 211 rotates, the position selection structure 2111 will rotate synchronously with it.

[0068] Specifically, in an embodiment of the present invention, the cylindrical gear structure 2110 of the third selection gear 211 is provided with a circular ring-shaped structure at one end of the selection structure 2111 for being mounted with the cylindrical boss 2405 of the power channel selection area 2401 at the front end of the box seat body 240, and the other end thereof is also provided with an interface for being mounted with the relevant gear in the first driving gear group.

[0069] Furthermore, the inclined top surface of the inclined top long handle structure of the positioning structure 2111 is symmetrical about the central plane of the long handle.

[0070] Specifically, in an embodiment of the present invention, the positioning inclined top block 212 is a structure with a shovel-shaped cross-section, including a shovel head 2120 and a shovel handle 2121, and the shovel head 2120 is composed of a shovel top surface and two inclined top surfaces symmetrically arranged along the center plane of the shovel top surface, while the shovel handle 2121 is a cylindrical pin structure for simple hole-shaft assembly with the third driven wheel 223.

[0071] Specifically, in the embodiment of the present invention, the positioning inclined ejector block 212 is inserted into the lantern-shaped special-shaped hole 2404 of the box seat body 240, and can slide linearly along its axis in the special-shaped hole 2404 but cannot rotate.

[0072] Specifically, in the embodiment of the present invention, the inclined top surface of the shovel head 2120 of the positioning inclined top block 212 corresponds to the inclined top surface of the inclined top long handle structure of the positioning structure 2111. When the inclined top long handle structure touches the positioning inclined top block 212, the corresponding inclined top surfaces of the two roughly form a face-to-face inclined wedge mechanism, thereby converting the circular motion of the inclined top long handle structure into the axial linear motion of the positioning inclined top block 212, thereby pushing the target power output component to connect with the corresponding transmission channel interface.

[0073] In particular, the first position selection gear set is arranged in the power channel selection area 2401 of the box seat body 240 of the first transmission assembly 2; correspondingly, the second position selection gear set is arranged in the power channel selection area 2401 of the box seat body 240 of the second transmission assembly 3.

[0074] Specifically, in the embodiment of the present invention, in the first transmission assembly 2, the first driving gear group includes a first driving wheel 220 mounted in the cylindrical boss structure of the first selection gear 210, a first driven wheel 221 mounted on the third selection gear 211, and a second driven wheel 222 mounted on the cylindrical boss 2405 in the power output area of ​​the box seat body 240, and the second driven wheel 222 is transmission-connected to the plurality of power output components.

[0075] Correspondingly, in the second transmission assembly 3, the second driving gear set includes a second driving wheel 320 sleeved in the cylindrical boss structure of the second positioning gear 310, a first driven wheel 221 sleeved in the third positioning gear 211, and a second driven wheel 222 sleeved on the cylindrical boss 2405 in the power output area of ​​the box seat body 240, and the second driven wheel 222 is transmission-connected to the plurality of power output components.

[0076] Specifically, in an embodiment of the present invention, the power output component includes a third driven wheel 223 that is transmission-connected to the second driven wheel 222, and a plurality of through holes corresponding to the position of the transmission channel interface are arranged on the rear cover 242. A pin hole is formed at one end of the third driven wheel 223 for being assembled with the positioning inclined ejector block 212 in the form of a hole shaft, and the other end is a pin shaft structure, and a power output interface that can pass through the through hole and selectively connect to the transmission channel interface is provided at the outer end of the pin shaft, and a spring 224 is provided on the pin shaft between the end face of the third driven wheel 223 and the plane of the rear cover 242 of the box seat body assembly 24, so as to reset the third driven wheel 223 after the positioning structure 2111 leaves the positioning inclined ejector block 212, so that the transmission channel interface is separated from the power output interface, thereby cutting off the power output.

[0077] Specifically, in a preferred solution of the embodiment of the present invention, the transmission channel interface is a hole-tooth type female coupling interface 430 , and the power output interface is a pin-tooth type male coupling interface 2230 .

[0078] Generally, each gear in the first driving gear set and the second driving gear set is a cylindrical gear structure.

[0079] Specifically, the first driving wheel 220 and the second driving wheel 320 have a pin structure at one central end for respectively fitting with the cylindrical boss structure at one end of the first positioning gear 210 and the second positioning gear 310, and the other end provides an internal snap-in hole for fitting with the power shaft of the driving motor.

[0080] Specifically, in an embodiment of the present invention, a pin hole is built into one end of the third driven wheel 223 for simple hole-shaft assembly with the shovel handle 2121 structure of the positioning inclined top block 212, and the other end is a pin shaft structure with a pin-tooth type male coupling interface 2230 provided at the outer end of the pin shaft.

[0081] Specifically, the front and rear ends of the power drive shaft 23 are rotatably mounted in the center holes of the front cover 212 and the rear cover 242 in the box seat body assembly 24, and are respectively connected to the first driven wheel 221 and the rear second driven wheel 222 by adopting a special-shaped pin-pin hole transmission, so that the first driven wheel 221 and the second driven wheel 222 can rotate synchronously, thereby realizing the power of the drive motor being output from the power channel selection area 2401 at the front end of the box seat body to the power output area on the rear side.

[0082] In particular, when the number of transmission channels of a single transmission component is sufficient, the first transmission component 2 or the second transmission component 3 can be preferably coordinated with the positioning component 1 to achieve control of the electrical downtilt angle of the antenna according to product layout requirements.

[0083] like Figure 6 As shown, the phase shifting assembly 4 includes a front supporting plate 41 , a rear supporting plate 42 , a phase shifting screw 43 , and a threaded slider 44 .

[0084] Specifically, a plurality of groups of positioning holes distributed in a circumference are provided on the front support plate 41 and the rear support plate 42 , and the positions of the positioning holes correspond one-to-one to the positions of the power output components of the first transmission assembly 2 and the second transmission assembly 3 .

[0085] The front and rear ends of the phase-shifting screw 43 are rotatably sleeved in the positioning holes of the front support plate 41 and the rear support plate 42. The threaded slider 44 is arranged corresponding to the phase-shifting screw 43, and the circular rotation of the screw can drive the threaded slider 44 to move forward and backward along the axial direction.

[0086] Furthermore, a hole-toothed female coupling interface 430 is provided at the front end of the phase-shifting screw 43, and the hole-toothed female coupling interface 430 and the pin-toothed male coupling interface 2230 on the third driven wheel 223 can form a radial snap-fit ​​in structure, so that when the male coupling interface 430 and the female coupling interface 2230 form a radial snap-fit, the rotation of the third driven wheel 223 can drive the phase-shifting screw 43 to rotate synchronously, thereby completing power output.

[0087] The specific motion mechanism of the multi-system antenna electrical downtilt angle control device is:

[0088] Before the position is selected, there is a certain axial distance between the hole-toothed female coupling interface 430 of the phase-shifting screw 43 and the male coupling interface 2230 of the third driven wheel 223 , that is, the male coupling interface 430 and the female coupling interface 2230 will not mesh.

[0089] First, position selection is performed: when the position selection motor rotates clockwise, the pawl piece 1102 of the first pawl group 1100 is engaged with the inner teeth 1110 of the first position selection ratchet 111, and drives the first position selection ratchet 111 to rotate clockwise. The clockwise rotation of the first position selection ratchet 111 will drive the first position selection gear 210 to rotate counterclockwise, and then drive the third position selection gear 211 to rotate clockwise.

[0090] When the third positioning gear 211 rotates clockwise, the positioning structure 2111 integrally formed with the third positioning gear 211 moves in a circular motion along the axis of the third positioning gear 211 and contacts the positioning inclined top block 212 circumferentially installed on the box seat body 240 .

[0091] When the positioning structure 2111 rotates and contacts the non-preset positioning inclined ejector block 212, the positioning inclined ejector block 212 contacts the inclined ejector surface on the positioning structure 2111 and forms an inclined wedge mechanism, so that the positioning inclined ejector block 212 moves axially backward, and further compresses the return spring 224, until the positioning structure 2111 of the third positioning gear 211 completely slides over the positioning inclined ejector block 212. After the positioning structure 2111 of the third positioning gear 211 completely slides over the non-preset positioning inclined ejector block 212, the third driven wheel 223 will carry the positioning inclined ejector block 212 under the reaction force of the compression spring 224, and will quickly rebound forward along the axial direction until it fits with the rear mounting surface of the inner wall 2400 of the box seat body 240.

[0092] When the rotation angle of the positioning motor is controlled until the positioning structure 2111 reaches the positioning inclined top block 212 where the preset required driving channel is located, the long handle structure with inclined top of the positioning structure 2111 will hover at the center of the positioning inclined top block 212, and the positioning inclined top block 212 drives the third driven wheel 223 connected thereto to move backward, thereby making the third driven wheel 223 extend further out of the box rear cover 242. At this time, the pin-toothed male coupling interface 2230 of the third driven wheel 223 is in meshing state with the hole-toothed female coupling interface 430 of the corresponding phase-shifting screw 43 in the phase-shifting assembly 4.

[0093] On the contrary, when the position selection motor rotates counterclockwise, the pawl piece 1102 of the second pawl group 1101 engages with the inner teeth 1110 of the second position selection ratchet 112, and drives the second position selection ratchet 112 to rotate counterclockwise. The counterclockwise rotation of the second position selection ratchet 112 drives the second position selection gear 310 to rotate clockwise, and then drives the third position selection gear 211 to rotate counterclockwise.

[0094] Similar to the above process, when the rotation angle of the position selection motor is controlled until the position selection structure 2111 reaches the position selection inclined top block 212 where the preset required driving channel is located, the long handle structure with inclined top of the position selection structure 2111 will hover at the center of the position selection slider 212, and the position selection inclined top block 212 drives the third driven wheel 223 connected thereto to move backward, thereby making the third driven wheel 223 extend further out of the box rear cover 242. At this time, the pin-toothed male coupling interface 2230 of the third driven wheel 223 is in meshing state with the hole-toothed female coupling interface 430 of the corresponding phase-shifting screw 43 in the phase-shifting assembly 4.

[0095] Secondly, driving is performed: when the position selection process is completed, the driving motor rotates, and in the first transmission component 2, the first driving wheel 220 will drive the first driven wheel 221 meshing therewith and the second driven wheel 222 coaxial with the first driven wheel 221, and then drive the third driven wheel 223 meshing with the second driven wheel and evenly distributed along the circumference. When the driving channel is selected, the third driven wheel 223 corresponding to the channel will complete the power output through the phase shifting screw 43 coupled and engaged therewith, thereby realizing the phase shifting drive of the corresponding phase shifter unit.

[0096] In the second transmission assembly 3, the first driving wheel 220 will drive the power transmission wheel 113 meshing with it and further drive the second driving wheel 320, the first driven wheel 221 and the second driven wheel 222 coaxial with the first driven wheel 221, and further drive the third driven wheels 223 meshing with the second driven wheel 222 and evenly distributed along the circumference. When a driving channel is selected, the third driven wheel 223 corresponding to the channel will complete power output through the phase shifting screw 43 coupled and engaged with it, thereby realizing the phase shifting drive of the corresponding phase shifter unit.

[0097] It should be noted that all the third driven wheels 223 of the first transmission assembly 2 and all the third driven wheels 223 of the second transmission assembly 3 rotate simultaneously, but only the third driven wheels 223 where the preset required driving channels are located can be in meshing state with the preset phase-shifting screw 43, and thus can only drive the preset phase-shifting screw 43 to rotate, thereby driving the threaded slider 44 and the pull rod connected thereto to perform reciprocating linear motion, and finally driving the phase shifter medium to slide. Other non-preset third driven wheels 223 are in an idling state, and other non-preset phase-shifting screws 43 are in a stationary state.

[0098] It should also be noted that the position selection component 1 can be used in conjunction with the first transmission component 2 and the second transmission component 3 at the same time to drive a large number of system antennas, or can be used in conjunction with only the first transmission component 2 or the second transmission component 3 to drive a small number of system antennas. In addition, the first transmission component 2 and the second transmission component 3 can also be used at the same time to drive a small number of system antennas. In this case, the third driven wheels 223 of the first transmission component 2 and the second transmission component 3 are not all installed, but are selectively installed as needed. This allows the position selection of the preset phase shift screw 43 to be more flexible while keeping the cost basically unchanged, thereby making the connection with the phase shifter more free.

[0099] An embodiment of the present invention further provides an antenna, comprising any one of the multi-system antenna electrical downtilt angle control devices described above.

[0100] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A multi-system antenna electrical downtilt angle control device, characterized in that: It includes a position selection component, a first transmission component and a second transmission component located on both sides of the position selection component and respectively provided with a plurality of power output components, and two groups of phase shifting components used to be connected with corresponding phase shifters for transmitting the phase shifters for adjustment and respectively provided with a plurality of transmission channel interfaces; The plurality of power output components correspond one-to-one to the transmission channel interfaces and can be selectively connected to the corresponding transmission channel interfaces; The position selection assembly includes a position selection shaft connected to the position selection motor and a one-way control mechanism arranged on the position selection shaft and respectively connected to the first transmission assembly and the second transmission assembly in transmission connection. When the position selection shaft rotates in a first preset direction, only the target power output component in the first transmission assembly is driven to connect with the corresponding transmission channel interface. When the position selection shaft rotates in a second preset direction, only the target power output component in the second transmission assembly is driven to connect with the corresponding transmission channel interface. The one-way control mechanism comprises a first position-selecting ratchet, a second position-selecting ratchet, a first pawl group arranged on the position-selecting shaft and clamped with the first position-selecting ratchet, and a second pawl group clamped with the second position-selecting ratchet, the first pawl group and the second pawl group each comprise a plurality of pawl pieces, the rotation direction of the pawl pieces of the first pawl group is opposite to the rotation direction of the pawl pieces of the second pawl group, the first transmission assembly is in driving connection with the first position-selecting ratchet, and the second transmission assembly is in driving connection with the second position-selecting ratchet; The outer circles of the first position selection ratchet wheel and the second position selection ratchet wheel are both cylindrical gear structures, and the inner circles are both unidirectional internal tooth structures uniformly distributed on the circumference, and the unidirectional internal tooth structures are formed by a triangle array with long and short sides in cross section, and the top end of the ratchet piece abuts against the short side of the triangle of the unidirectional internal tooth structure; The first transmission assembly includes a first selection gear group and a first driving gear group, the first selection gear group includes a third selection gear, multiple selection parts, and a first selection gear that is respectively connected to the one-way control mechanism and the third selection gear in the first selection gear group, the second transmission assembly includes a second selection gear group and a second driving gear group, the second selection gear group includes a third selection gear, multiple selection parts, and a second selection gear that is respectively connected to the one-way control mechanism and the third selection gear in the second transmission assembly, one end of the multiple selection parts is matched with multiple power output components in a one-to-one correspondence, the third selection gear includes a cylindrical gear structure and a selection structure arranged on the cylindrical gear structure, when the third selection gear rotates, the selection structure touches the selection part, and the circular motion of the selection structure is converted into the axial linear motion of the selection part, thereby pushing the target power output component to connect with the corresponding transmission channel interface.

2. The multi-system antenna electrical downtilt angle control device according to claim 1, characterized in that: The positioning structure is a long handle structure with an inclined top which is arranged at one end of the cylindrical gear structure and extends out of the circumferential surface of the gear. The positioning member is a positioning inclined top block with a shovel-shaped cross-section, including a shovel head and a shovel handle. The shovel head includes a shovel top surface and two inclined top surfaces symmetrically arranged along the central plane of the shovel top surface. The shovel handle is a cylindrical pin structure for fitting with a power output component. The inclined top surface of the shovel head of the positioning inclined top block corresponds to the inclined top surface of the inclined top long handle structure of the positioning structure.

3. The multi-system antenna electrical downtilt angle control device according to claim 2, characterized in that: The first transmission assembly also includes a box seat assembly for mounting the first positioning gear set and the first driving gear set; the second transmission assembly also includes a box seat assembly for mounting the second positioning gear set and the second driving gear set; the box seat assembly includes a box seat body, a box front cover and a box rear cover.

4. The multi-system antenna electrical downtilt angle control device according to claim 3, characterized in that: An inner wall is arranged in the middle of the box seat body to divide the box seat body into a power channel selection area and a power output area. A circular hole penetrating the inner wall and a plurality of lantern-shaped special-shaped holes evenly distributed around the circumference of the circular hole are arranged on the inner wall for fitting the positioning inclined top block. The positioning inclined top block can slide linearly along its axial center line in the lantern-shaped special-shaped hole but cannot rotate. Cylindrical bosses are arranged on the circumference of the circular hole in the power channel selection area and the power output area to serve as the mounting axis of the third positioning gear.

5. The multi-system antenna electrical downtilt angle control device according to claim 4, characterized in that: A notch is provided on the side of the power channel selection area of ​​the box seat body and extends through the front end mounting surface of the box seat body, and a lug structure is provided on the bottom plane of the notch. The lug structure of the box seat body in the first transmission assembly is used to install the first selection gear, and the lug structure of the box seat body in the second transmission assembly is used to install the second selection gear.

6. The multi-system antenna electrical downtilt angle control device according to claim 4, characterized in that: In the first transmission assembly, the first driving gear set includes a power-driven rotating shaft, a first driving wheel sleeved on the first selection gear, a first driven wheel sleeved on the third selection gear and transmission-connected to the first driving wheel, and a second driven wheel sleeved on the cylindrical boss in the power output area of ​​the box seat body and transmission-connected to a plurality of power output components. The front and rear ends of the power-driven rotating shaft are rotatably sleeved in the center holes of the front cover and the rear cover in the box seat body assembly, and are transmission-connected to the first driven wheel and the second driven wheel respectively; in the second transmission assembly, the second driving gear set includes a power-driven rotating shaft, a second driving wheel sleeved on the second selection gear, a first driven wheel sleeved on the third selection gear and transmission-connected to the second driving wheel, and a second driven wheel sleeved on the cylindrical boss in the power output area of ​​the box seat body and transmission-connected to a plurality of power output components. The front and rear ends of the power-driven rotating shaft are rotatably sleeved in the center holes of the front cover and the rear cover in the box seat body assembly, and are transmission-connected to the first driven wheel and the second driven wheel respectively.

7. The multi-system antenna electrical downtilt angle control device according to claim 6, characterized in that: The power output component includes a third driven wheel transmission-connected to the second driven wheel, a plurality of through holes corresponding to the transmission channel interface positions are arranged on the rear cover, a pin hole is built into one end of the third driven wheel for being fitted with the positioning inclined top block in the form of a hole shaft, the other end is a pin shaft structure, and a power output interface is arranged at the outer end of the pin shaft for selectively connecting to the transmission channel interface through the through hole, a spring is arranged on the pin shaft between the end face of the third driven wheel and the rear cover plane of the box seat body assembly, for resetting the third driven wheel after the positioning structure leaves the positioning inclined top block so as to separate the transmission channel interface from the power output interface.

8. The multi-system antenna electrical downtilt angle control device according to claim 6, characterized in that: The positioning shaft is provided with an optical axis section, and the optical axis section is provided with a power transmission wheel, and the power transmission wheel is respectively connected to the first driving wheel and the second driving wheel in driving connection, and the power transmission wheel is an idler wheel, that is, it can rotate freely on the positioning shaft, and the rotation of the positioning shaft has no effect on it, and the first driving wheel or the second driving wheel is used for connecting with the driving motor in driving connection, so as to realize the adjustment by synchronously driving the first driving gear set and the second driving gear set by a driving motor.

9. A multi-system antenna electrical downtilt angle control device according to any one of claims 1 to 8, characterized in that: The phase shifting assembly includes a front support plate, a rear support plate, multiple groups of phase shifting screws, and multiple groups of threaded sliders. The front support plate and the rear support plate are provided with multiple groups of positioning holes distributed in a circumferential manner. The positions of the positioning holes correspond one-to-one to the positions of the power output components of the first transmission assembly and the second transmission assembly. The front and rear ends of the phase shifting screw are rotatably sleeved in the positioning holes of the front support plate and the rear support plate respectively. The front end of the phase shifting screw is provided with a transmission channel interface. The threaded slider is arranged corresponding to the phase shifting screw. The circumferential rotation of the screw drives the threaded slider to move forward and backward along the axial direction. The threaded slider is connected to the corresponding phase shifter for transmitting the phase shifter for adjustment.

10. An antenna, characterized in that: It comprises a multi-system antenna electrical downtilt angle control device as described in any one of claims 1-9.

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