CN114465005A - Electric downward inclination angle adjusting device and base station antenna - Google Patents
Electric downward inclination angle adjusting device and base station antenna Download PDFInfo
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- CN114465005A CN114465005A CN202210296874.0A CN202210296874A CN114465005A CN 114465005 A CN114465005 A CN 114465005A CN 202210296874 A CN202210296874 A CN 202210296874A CN 114465005 A CN114465005 A CN 114465005A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/20—Resilient mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the technical field of antennas, in particular to an electric downtilt adjusting device and a base station antenna, wherein the electric downtilt adjusting device comprises a position selection transmission assembly and a phase shifting assembly, and the position selection transmission assembly comprises a support frame, a mobile switching mechanism, a transmission gear and a second guide shaft; the supporting frame is provided with a second guide shaft, the second guide shaft is provided with a plurality of transmission idle wheels at intervals, the transmission gear is used for driving the transmission idle wheels to rotate, the supporting frame is provided with a mobile switching mechanism, and the mobile switching mechanism is used for driving the transmission gear to move and switch among the plurality of transmission idle wheels; the movable switching mechanism is provided with a driving piece, and the driving piece is used for driving the transmission gear to rotate; the phase shifting assembly comprises a plurality of driven pieces, and the driven pieces are respectively used for being connected with corresponding phase shifters and used for adjusting the inclination angles of the phase shifters. The electric downtilt adjusting device provided by the invention has the advantages of simple structure, convenience in manufacturing, low cost, light weight, small size and reliable quality.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an electric downtilt adjusting device and a base station antenna.
Background
Base station antennas typically need to be tilted downward with respect to the horizon by an angle that varies the radiation range of the antenna when operating. At present, the adjustment of the antenna downward inclination angle mainly adopts two modes of a mechanical downward inclination angle and an electrical downward inclination angle, the electrical downward inclination angle can be controlled through remote electric regulation, and the cost is low, so that the antenna downward inclination angle is more and more widely applied.
With the increasing number of mobile communication terminal users, the same antenna is often required to have more communication frequency bands, the electrical downtilt of each communication frequency band needs to be independently controlled, and the electrical downtilt is changed by driving the corresponding phase shifter transmission mechanism. In a traditional transmission device, one driving motor is usually adopted to correspond to one phase shifter transmission mechanism, and the problems of high cost, complex structure, large occupied space, low reliability and the like are caused by the fact that the number of control circuits and motors is large.
Disclosure of Invention
The invention aims to provide an antenna electrical downtilt angle adjusting device which has simple structure, convenient manufacture, low cost, light weight, small size, reliable quality, namely a base station antenna applying the antenna electrical downtilt angle adjusting device.
In order to realize the purpose of the invention, the following technical scheme is adopted:
the invention provides an electric downtilt adjusting device in a first aspect, which comprises a position selection transmission assembly and a phase shifting assembly, wherein the position selection transmission assembly comprises a support frame, a mobile switching mechanism, a transmission gear and a second guide shaft; the supporting frame is provided with a second guide shaft, the second guide shaft is provided with a plurality of transmission intermediate wheels at intervals, the transmission gears are used for driving the transmission intermediate wheels to rotate, the supporting frame is provided with a mobile switching mechanism, and the mobile switching mechanism is used for driving the transmission gears to move and switch among the plurality of transmission intermediate wheels; the movable switching mechanism is provided with a driving piece, and the driving piece is used for driving the transmission gear to rotate;
the phase shifting assembly comprises a plurality of driven parts, a plurality of transmission idle wheels are in one-to-one corresponding transmission connection with the driven parts respectively, and the driven parts are used for being connected with corresponding phase shifters respectively and used for adjusting the inclination angles of the phase shifters.
The further improvement lies in that the mobile switching mechanism comprises a transmission shaft and a position selecting rack, position selecting fixing holes are respectively formed in two ends of the position selecting rack, transmission gears are respectively installed in the position selecting fixing holes in the two ends, the transmission shaft penetrates through the position selecting fixing holes and the holes of the transmission gears, the two ends of the transmission shaft are respectively connected with the support frame, a position selecting input gear is arranged on the position selecting rack, and the rotation of the position selecting input gear can drive the position selecting rack and the transmission gears to slide along the axial direction of the transmission shaft.
The improved gear rack has the further improvement that a round shaft elastic arm is arranged on the transmission gear, the round shaft elastic arm can rotate in a position selecting fixing hole of the position selecting rack, an inverted buckle is arranged at the end part of the transmission gear, and the inverted buckle is buckled on the position selecting fixing hole.
The further improvement lies in that the driving part comprises a transmission input bevel gear and a first bevel gear, the first bevel gear is sleeved on the transmission shaft, the transmission shaft and the transmission gear can be driven to synchronously rotate by the rotation of the first bevel gear, and the first bevel gear can be driven to rotate by the rotation of the transmission input bevel gear.
The improved structure of the transmission intermediate wheel is characterized in that a plurality of clamping grooves are formed in the second guide shaft, clamping rings are arranged on the stopping surfaces of the transmission intermediate wheels, and the second guide shaft penetrates through the holes of the transmission intermediate wheels one by one in sequence and then is clamped in the corresponding clamping grooves of the second guide shaft by the clamping rings.
The improved transmission device is characterized in that the phase-shifting assembly comprises a fixed seat positioned on one side of the selective transmission assembly, the driven piece comprises an internal threaded strip and an external threaded column, the internal threaded strip is installed in a guide groove of the fixed seat, the external threaded column is arranged below the internal threaded strip, the transmission intermediate wheel can drive the external threaded column to rotate, and the external threaded column can drive the internal threaded strip to slide in the guide groove.
The driven part is further improved in that the driven part further comprises a third bevel gear, a second bevel gear is arranged on the transmission intermediate wheel and meshed with the corresponding third bevel gear, the third bevel gear sequentially penetrates through the first round hole of the fixing seat, the through hole of the external threaded column and the second round hole of the fixing seat, the third bevel gear is in transmission connection with the external threaded column, and the third bevel gear can rotate in the first round hole and the second round hole of the fixing seat.
The further improvement is that a damping ring is arranged between the third bevel gear and the first round hole of the fixed seat.
The improved structure is characterized in that the rear part of the third bevel gear is provided with an elastic buckle which is buckled on the end surface of the second round hole of the fixed seat and used for preventing the third bevel gear from loosening from the fixed seat.
A second aspect of the present invention provides a base station antenna, including the electrical downtilt adjustment apparatus according to any one of the first aspects.
The invention has the beneficial effects that:
according to the invention, the transmission shaft respectively penetrates through the holes of the transmission gear and the first bevel gear, and the transmission shaft, the first bevel gear and the holes of the transmission gear are in spline connection, so that the rotation of the transmission input bevel gear can drive the first bevel gear to rotate, and the transmission shaft and the transmission gear are driven to synchronously rotate. The rotation of the transmission gear can drive a certain path of transmission intermediate wheel meshed with the transmission gear to rotate. The second bevel gear of the transmission intermediate wheel is meshed with the third bevel gear, and the transmission intermediate wheel is fixed along the axial direction of the second guide shaft and can only rotate along the axis of the second guide shaft under the action of the clamping ring, so that the rotation of the transmission intermediate wheel can drive the third bevel gear to rotate, the inner threaded strip is driven to move back and forth in the guide groove, the end part of the inner threaded strip can be connected with the corresponding phase shifter, and the adjustment of the inclination angle of the phase shifter is realized.
The electric downtilt adjusting device provided by the invention has the advantages of simple structure, convenience in manufacturing, low cost, light weight, small size and reliable quality.
According to the invention, the anti-disengaging hook is arranged on the support frame, the annular grooves are arranged at the two ends of the transmission shaft, and the anti-disengaging hook of the support frame is clamped into the annular grooves of the transmission shaft, so that the support frame can be prevented from falling off, the position-selecting transmission assembly is integrated, and the position-selecting transmission assembly is convenient to turn over and install on a production line as a module.
According to the invention, the damping ring is additionally arranged between the third bevel gear and the first round hole of the fixed seat, so that the forward and backward sliding of the internal thread strip caused by shaking of the third bevel gear in a non-working state, such as a product transportation process, can be prevented, and the third bevel gear can be prevented from loosening from the fixed seat by arranging the elastic buckle which is buckled on the end surface of the second round hole of the fixed seat, so that the phase-shifting assembly is formed into a whole, and the phase-shifting assembly can be conveniently used as a module to be rotated and installed on a production line.
Drawings
Fig. 1 is a schematic structural diagram of a device for adjusting an electrical downtilt according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a positioning transmission assembly of an electrical downtilt adjustment apparatus according to an embodiment of the present invention;
fig. 3 is an exploded schematic view of a transmission intermediate wheel of an electrical downtilt adjustment apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a position selecting transmission assembly of an electrical downtilt adjustment apparatus according to an embodiment of the present invention;
fig. 5 is an exploded view of a phase shifting unit of an electrical downtilt adjustment apparatus according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a phase shifting assembly of an electrical downtilt adjustment apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second electrical downtilt adjustment apparatus according to an embodiment of the present invention.
Description of reference numerals:
1. a position selecting transmission assembly; 2. a phase shift assembly; 10. selecting an input gear; 11. a drive input bevel gear; 12. a support frame; 13. selecting a rack; 14. a transmission gear; 141. a circular shaft spring arm; 142. reversing; 15. a drive shaft; 16. a first bevel gear; 17. a first guide shaft; 18. a transmission intermediate wheel; 181. a second bevel gear; 182. a backstop surface; 19. a second guide shaft; 191. a card slot; 20. a snap ring; 21. a fixed seat; 211. a first circular hole; 212. a second circular hole; 22. a third bevel gear; 221. snapping; 23. an externally threaded post; 24. an internal threaded strip; 25. a damping ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered to be "drivingly connected" to another element, it is sufficient that both elements are capable of power transmission, and the specific implementation thereof can be achieved using existing techniques, and is not burdensome here. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
References to "first" and "second" in this disclosure do not denote any particular order or quantity, but rather are used to distinguish one element from another.
The following detailed description of embodiments of the invention is made with reference to the accompanying drawings 1-7:
an embodiment of the first aspect of the present invention provides an electrical downtilt adjustment apparatus, which is shown in fig. 1, and an application scheme of the present invention is composed of the following components:
the electric declination angle adjusting device comprises a position selecting transmission assembly 1 and a phase shifting assembly 2, wherein the position selecting transmission assembly 1 can complete position selection of any one transmission path in the phase shifting assembly 2, the phase shifting assembly 2 can drive a corresponding phase shifter (not shown) to adjust an inclination angle, and the position selecting transmission assembly 1 comprises a support frame 12, a moving switching mechanism, a transmission gear 14 and a second guide shaft 19; a second guide shaft 19 is mounted on the support frame 12, a plurality of transmission intermediate wheels 18 are mounted on the second guide shaft 19 at intervals, the transmission gear 14 is used for driving the transmission intermediate wheels 18 to rotate, and a mobile switching mechanism is mounted on the support frame 12 and used for driving the transmission gear 14 to move and switch among the plurality of transmission intermediate wheels 18; the movable switching mechanism is provided with a driving piece, and the driving piece is used for driving the transmission gear 14 to rotate;
the phase shifting component 2 comprises a plurality of driven parts, a plurality of transmission idle wheels 18 are respectively in one-to-one corresponding transmission connection with the driven parts, and the driven parts are respectively used for being connected with corresponding phase shifters and used for realizing the adjustment of the inclination angles of the phase shifters.
The mobile switching mechanism comprises a transmission shaft 15 and a position selecting rack 13, position selecting fixing holes 131 are respectively formed in two ends of the position selecting rack 13, transmission gears 14 are respectively installed in the position selecting fixing holes 131 in the two ends, the transmission shaft 15 penetrates through the position selecting fixing holes 131 and the holes of the transmission gears 14, two ends of the transmission shaft 15 are respectively connected with a support frame 12, a position selecting input gear 10 is arranged on the position selecting rack 13, and the rotation of the position selecting input gear 10 can drive the position selecting rack 13 and the transmission gears 14 to slide along the axial direction of the transmission shaft 15.
The driving piece comprises a transmission input bevel gear 11 and a first bevel gear 16, the first bevel gear 16 is sleeved on a transmission shaft 15, the transmission shaft 15 and the transmission gear 14 can be driven to synchronously rotate by the rotation of the first bevel gear 16, and the first bevel gear 16 can be driven to rotate by the rotation of the transmission input bevel gear 11.
Specifically, referring to fig. 2, the transmission gear 14 is symmetrically installed on the position selection fixing holes 131 at two ends of the position selection rack 13, a circular shaft elastic arm 141 is disposed on the transmission gear 14, the circular shaft elastic arm 141 of the transmission gear 14 can rotate in the position selection fixing hole 131 of the position selection rack 13, and an inverted buckle 142 is disposed at an end of the transmission gear 14, and the inverted buckle 142 can be buckled on the position selection fixing hole 131.
Further, the transmission shaft 15 passes through the holes of the transmission gear 14, the first bevel gear 16 and the other transmission gear 14, and the transmission shaft 15, the transmission gear 14 and the first bevel gear 16 can be matched by a spline structure, so that the rotation of the first bevel gear 16 can drive the transmission shaft 15 and the transmission gear 14 to rotate synchronously.
Furthermore, the support frame 12 is further provided with a first guide shaft 17, the first guide shaft 17 penetrates through two ends of the position selecting rack 13, the position selecting rack 13 can drive the transmission gear 14 fastened on the fixing hole 131 to freely slide along the axial direction of the transmission shaft 15 (or the first guide shaft 17) as a whole, and the sliding of the position selecting rack 13 is more stable under the combined action of the first guide shaft 17 and the transmission shaft 15.
Referring to fig. 3, a plurality of clamping grooves 191 are formed in the second guide shaft 19, a snap ring 20 is arranged on the stopping surface 182 of the transmission intermediate wheel 18, and the second guide shaft 19 sequentially penetrates through the holes of the transmission intermediate wheel 18 one by one, and then is correspondingly clamped in the clamping grooves 191 corresponding to the second guide shaft 19 by the snap ring 20, so that the transmission intermediate wheel 18 is evenly and symmetrically distributed on two sides of the second guide shaft 19. The transmission intermediate wheel 18 can freely rotate along the axis of the first guide shaft 17, and the snap ring 20 is arranged on the anti-backing surface 182 of the transmission intermediate wheel 18 to prevent the transmission intermediate wheel 18 from sliding to the other side along the axial direction of the second guide shaft 19. Furthermore, the installation positions and the number of the snap rings 20 and the transmission intermediate wheels 18 can be adjusted according to the implementation requirements of the antenna, and 12 paths are adopted in the embodiment of the invention for description.
Referring to fig. 4, the supporting frame 12 is mounted at two ends of the first guide shaft 17, the second guide shaft 19 and the transmission shaft 15, and functions to support and position the first guide shaft 17, the second guide shaft 19 and the transmission shaft 15.
Further, transmission shaft 15 can be in the fixed orifices free rotation at support frame 12 both ends, be provided with mousing-hook 121 on the support frame 12, the both ends of transmission shaft 15 are provided with annular groove 151, and mousing-hook 121 card of support frame 12 is into the annular groove 151 of transmission shaft 15, can prevent that support frame 12 from droing, makes the transmission assembly 1 of choosing a position form a whole, makes things convenient for this transmission assembly 1 of choosing a position to take the turnover and the installation of module on producing the line.
Further, the rotation of the position selecting input gear 10 can drive the position selecting rack 13 to slide along the axial direction of the transmission shaft 15 (or the first guide shaft 17), the sliding of the position selecting rack 13 can drive the transmission gears 14 fastened on the position selecting fixing holes 131 to correspondingly move, and in the sliding process of the position selecting rack 13, the transmission gears 14 can be sequentially meshed with the transmission intermediate wheels 18 fixed on the second guide shaft 19 one by one, so that the position selection of the transmission intermediate wheels 18 at different positions is completed.
Further, the number of the transmission gears 14 can be designed to be one or a plurality according to the efficiency requirement of gear shifting (the number of the transmission gears 14 in this example is 2), when one of the transmission gears 14 is engaged with any one of the transmission intermediate gears 18, the transmission gears 14 at other positions need to be completely separated from the transmission intermediate gears 18.
Referring to fig. 5 and 6, the phase shift assembly 2 includes a fixing base 21 located at one side of the position selecting transmission assembly 1, the driven member includes an internal threaded strip 24 and an external threaded column 23, the internal threaded strip 24 is installed in a guide groove of the fixing base 21, the internal threaded strip 24 can slide freely in the guide groove, the external threaded column 23 is disposed below the internal threaded strip 24, and besides the transmission mode of the thread shown in this example, other transmission modes such as a worm gear and a screw rod can also be adopted between the external threaded column 23 and the internal threaded column 24. The rotation of the transmission idle wheel 18 can drive the external threaded column 23 to rotate, and the rotation of the external threaded column 23 can drive the internal threaded strip 24 to slide in the guide groove.
Further, the driven member also comprises a third bevel gear 22, a second bevel gear 181 is arranged on the transmission intermediate gear 18, the second bevel gear 181 is engaged with a corresponding third bevel gear 22, a damping ring 25 is arranged between the third bevel gear 22 and the first round hole 211 of the fixed seat 21, the third bevel gear 22 sequentially passes through the damping ring 25, the first round hole 211 of the fixed seat 21, the through hole of the external threaded column 23 and the second round hole 212 of the fixed seat 21, and the third bevel gear 22 is in transmission connection with the external threaded column 23, specifically, the third bevel gear 22 and the external threaded column 23 can be in transmission connection by structural matching of splines, the third bevel gear 22 can freely rotate in the first circular hole 211 and the second circular hole 212 of the fixing seat 21, the rotation of the third bevel gear 22 can drive the external threaded column 23 to rotate together, and the rotation of the external threaded column 23 can drive the internal threaded strip 24 to move back and forth in the guide groove of the fixed seat 21.
In this embodiment, the damping ring 25 is additionally arranged between the third bevel gear 22 and the first circular hole 211 of the fixing seat 21, so that the forward and backward sliding of the internal thread strip 24 caused by the shaking of the third bevel gear 22 in the non-working state, such as during the product transportation, can be prevented.
Preferably, the rear portion of the third bevel gear 22 may further be designed with an elastic buckle 221, and the elastic buckle 221 is fastened to the end surface of the second circular hole 212 of the fixing seat 21 to prevent the third bevel gear 22 from being released from the fixing seat 21, so that the phase shift assembly 2 forms a whole, which facilitates the rotation and installation of the phase shift assembly 2 as a module on a production line.
The working principle of the invention is as follows: since the transmission shaft 15 passes through the holes of the transmission gear 14 and the first bevel gear 16 respectively, and the transmission shaft 15, the first bevel gear 16 and the holes of the transmission gear 14 are all in a spline connection mode, the rotation of the transmission input bevel gear 11 can drive the first bevel gear 16 to rotate, so as to drive the transmission shaft 15 and the transmission gear 14 to synchronously rotate. The rotation of the transmission gear 14 can drive the rotation of a certain transmission intermediate gear 18 engaged with the transmission gear. Further, since the second bevel gear 181 of the transmission intermediate wheel 18 is engaged with the third bevel gear 22, and under the action of the snap ring 20, the transmission intermediate wheel 18 is fixed along the axial direction of the second guide shaft 19 and can only rotate along the axial center of the second guide shaft 19, and the rotation of the transmission intermediate wheel 18 can drive the third bevel gear 22 to rotate, so as to drive the internal threaded bar 24 to move back and forth in the guide groove, and the end of the internal threaded bar 24 can be connected with a corresponding phase shifter (not shown), so as to achieve the adjustment of the inclination angle of the phase shifter (not shown).
Referring to fig. 7, in other embodiments of the present invention, the phase shift assembly 2 may be designed as one or multiple paths to form a group (in this example, 2 paths are used as a group for illustration), and according to the actual requirement of the antenna, the phase shift assembly 2, the transmission intermediate wheel 18 and the snap ring 20 may be increased or decreased accordingly, so as to implement modularization of the product, improve the applicability of the product, and save the cost.
An embodiment of a second aspect of the present invention provides a base station antenna, where the base station antenna includes the electrical downtilt adjustment apparatus as described in any of the embodiments of the first aspect, and since other structures of the base station antenna belong to the prior art, a person skilled in the art can implement the method with reference to the prior art, and details of the embodiment are not described herein.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which shall all fall within the protection of the present invention.
Claims (10)
1. An electric declination angle adjusting device comprises a position selecting transmission assembly and a phase shifting assembly, and is characterized in that the position selecting transmission assembly comprises a support frame, a moving switching mechanism, a transmission gear and a second guide shaft; the supporting frame is provided with a second guide shaft, the second guide shaft is provided with a plurality of transmission intermediate wheels at intervals, the transmission gears are used for driving the transmission intermediate wheels to rotate, the supporting frame is provided with a mobile switching mechanism, and the mobile switching mechanism is used for driving the transmission gears to move and switch among the plurality of transmission intermediate wheels; the movable switching mechanism is provided with a driving piece, and the driving piece is used for driving the transmission gear to rotate;
the phase shifting assembly comprises a plurality of driven parts, a plurality of transmission idle wheels are in one-to-one corresponding transmission connection with the driven parts respectively, and the driven parts are used for being connected with corresponding phase shifters respectively and used for adjusting the inclination angles of the phase shifters.
2. The electrical downtilt adjustment device according to claim 1, wherein the moving switching mechanism comprises a transmission shaft and a position selection rack, wherein position selection fixing holes are respectively formed at two ends of the position selection rack, transmission gears are respectively installed in the position selection fixing holes at the two ends, the transmission shaft penetrates through the position selection fixing holes and the holes of the transmission gears, the two ends of the transmission shaft are respectively connected with the support frame, a position selection input gear is arranged on the position selection rack, and the rotation of the position selection input gear can drive the position selection rack and the transmission gears to slide along the axial direction of the transmission shaft.
3. The electrical downtilt adjustment device according to claim 2, wherein the transmission gear is provided with a circular shaft elastic arm, the circular shaft elastic arm can rotate in the position selection fixing hole of the position selection rack, and an inverted buckle is arranged at an end of the transmission gear and is buckled on the position selection fixing hole.
4. The electrical downtilt adjustment device according to claim 2, wherein the driving member comprises a transmission input bevel gear and a first bevel gear, the first bevel gear is sleeved on the transmission shaft, the rotation of the first bevel gear drives the transmission shaft and the transmission gear to rotate synchronously, and the rotation of the transmission input bevel gear drives the first bevel gear to rotate.
5. The electrical downtilt adjustment device according to claim 1, wherein the second guide shaft is provided with a plurality of slots, the non-return surface of the transmission intermediate wheel is provided with a snap ring, and the second guide shaft is sequentially passed through the holes of the plurality of transmission intermediate wheels one by one and then is snapped in the corresponding slots of the second guide shaft by the snap ring.
6. The electrical downtilt adjustment device according to claim 1, wherein the phase shift assembly includes a fixed seat located on one side of the selective transmission assembly, the driven member includes an internal threaded bar and an external threaded post, the internal threaded bar is installed in a guide groove of the fixed seat, the external threaded post is disposed below the internal threaded bar, rotation of the transmission idle wheel can drive the external threaded post to rotate, and rotation of the external threaded post can drive the internal threaded bar to slide in the guide groove.
7. The electrical downtilt adjustment device according to claim 6, wherein the driven member further comprises a third bevel gear, a second bevel gear is disposed on the transmission intermediate gear, the second bevel gear is engaged with a corresponding third bevel gear, the third bevel gear sequentially passes through the first circular hole of the fixing base, the through hole of the external threaded column and the second circular hole of the fixing base, the third bevel gear is in transmission connection with the external threaded column, and the third bevel gear can rotate in the first circular hole and the second circular hole of the fixing base.
8. The electrical downtilt adjustment device according to claim 7, wherein a damping ring is disposed between the third bevel gear and the first circular hole of the fixing base.
9. The electrical downtilt adjustment device according to claim 7, wherein a snap fastener is disposed at a rear portion of the third bevel gear, and the snap fastener is fastened to the second circular hole end surface of the fixing base to prevent the third bevel gear from being released from the fixing base.
10. A base station antenna comprising an electrical downtilt adjustment device according to any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210296874.0A CN114465005A (en) | 2022-03-24 | 2022-03-24 | Electric downward inclination angle adjusting device and base station antenna |
| PCT/CN2023/079430 WO2023179334A1 (en) | 2022-03-24 | 2023-03-03 | Electric downtilt angle adjustment apparatus and base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210296874.0A CN114465005A (en) | 2022-03-24 | 2022-03-24 | Electric downward inclination angle adjusting device and base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114465005A true CN114465005A (en) | 2022-05-10 |
Family
ID=81416460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210296874.0A Pending CN114465005A (en) | 2022-03-24 | 2022-03-24 | Electric downward inclination angle adjusting device and base station antenna |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114465005A (en) |
| WO (1) | WO2023179334A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230307830A1 (en) * | 2020-08-20 | 2023-09-28 | Commscope Technologies Llc | Transmission mechanism for base station antenna and base station antenna |
| WO2023179334A1 (en) * | 2022-03-24 | 2023-09-28 | 广东博纬通信科技有限公司 | Electric downtilt angle adjustment apparatus and base station antenna |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755747A (en) * | 2017-11-07 | 2019-05-14 | 罗森伯格技术（昆山）有限公司 | A kind of antenna phasing unit transmission device |
| CN110165412A (en) * | 2019-05-27 | 2019-08-23 | 武汉虹信通信技术有限责任公司 | Electrical tilt antenna is driven switching device and antenna for base station |
| WO2021118740A1 (en) * | 2019-12-13 | 2021-06-17 | Commscope Technologies Llc | Remote electronic tilt actuators for controlling multiple phase shifters and base station antennas with remote electronic tilt actuators |
| CN111682318A (en) * | 2020-05-14 | 2020-09-18 | 摩比天线技术（深圳）有限公司 | Antenna downward inclination angle adjusting device and antenna |
| CN216903355U (en) * | 2022-03-24 | 2022-07-05 | 广东博纬通信科技有限公司 | Electric downward inclination angle adjusting device and base station antenna |
| CN114465005A (en) * | 2022-03-24 | 2022-05-10 | 广东博纬通信科技有限公司 | Electric downward inclination angle adjusting device and base station antenna |
-
2022
- 2022-03-24 CN CN202210296874.0A patent/CN114465005A/en active Pending
-
2023
- 2023-03-03 WO PCT/CN2023/079430 patent/WO2023179334A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230307830A1 (en) * | 2020-08-20 | 2023-09-28 | Commscope Technologies Llc | Transmission mechanism for base station antenna and base station antenna |
| US11984662B2 (en) * | 2020-08-20 | 2024-05-14 | Commscope Technologies Llc | Transmission mechanism for base station antenna and base station antenna |
| WO2023179334A1 (en) * | 2022-03-24 | 2023-09-28 | 广东博纬通信科技有限公司 | Electric downtilt angle adjustment apparatus and base station antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023179334A1 (en) | 2023-09-28 |
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