CN107565220B - Electrically tunable antenna and downward inclination angle display device thereof - Google Patents
Electrically tunable antenna and downward inclination angle display device thereof Download PDFInfo
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- CN107565220B CN107565220B CN201710733573.9A CN201710733573A CN107565220B CN 107565220 B CN107565220 B CN 107565220B CN 201710733573 A CN201710733573 A CN 201710733573A CN 107565220 B CN107565220 B CN 107565220B
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Abstract
The invention provides an electric tilt antenna and a downward inclination display device thereof, wherein the downward inclination display device comprises: the device comprises a supporting seat, a scale screw and a scale nut; the supporting seat is provided with at least one scale window; the scale screw rod is rotatably arranged on the supporting seat, at least one circle of scales are annularly arranged on the periphery of one end of the scale screw rod, and the position of the scale window corresponds to the scale position; the outer thread of the scale screw is provided with a thread, and the lead of the scale screw is larger than the stroke of the phase-shifting part; the scale nut is in threaded connection with the scale screw rod, the scale nut is driven by the phase shifting part of the phase shifter to move linearly along the axial direction of the scale screw rod, so that the scale nut drives the scale screw rod to rotate around the axial direction of the scale screw rod, scales at different angles are displayed on the scale window of the supporting seat, the occupation of the installation space is reduced by a self-rotating display mode, and the risk of fracture or low-temperature freezing caused by the fact that the scale extends out too long in the prior art is avoided; meanwhile, display errors are effectively eliminated.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to an electric tilt antenna and a downward inclination angle display device thereof.
Background
The application of the base station multi-frequency electrically-tunable antenna is more and more extensive, the number of functional modules is more and more, and the requirement on the accuracy of the electrical downtilt angle of the antenna is more and more high, so that the phase shifter with a large stroke is widely applied in the design of the antenna.
At present, a large-stroke phase shifter is provided, wherein a graduated scale synchronously moves along with a phase shifting part of the phase shifter in the same direction, and the length of the graduated scale extending out of a shell is used for displaying the angle of a declination angle of the graduated scale, so that the extending graduated scale is at risk of breakage, and has a freezing risk due to low temperature at a cold temperature, and meanwhile, the extending length of the graduated scale occupies a large space outside an antenna shell.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an electrically tunable antenna and a downward tilt angle display device thereof, so as to solve the problems that a phase shifter scale in the prior art is prone to fracture and low temperature freezing, occupies a large amount of space, and the like.
In view of the above technical problem, the present invention provides a downtilt display device for an electrically tunable antenna, configured to display a phase stroke of a phase shifting unit of a phase shifter, including: the device comprises a supporting seat, a scale screw and a scale nut; the supporting seat is provided with at least one scale window; the scale screw rod is rotatably arranged on the supporting seat, at least one circle of scales are annularly arranged on the periphery of one end of the scale screw rod, and the position of the scale window corresponds to the position of the scales; the scale screw is externally screwed with threads, and the lead of the scale screw is greater than the stroke of the phase-shifting part; the scale nut is in threaded connection with the scale screw rod and is driven by the phase shifting part of the phase shifter to move linearly along the axial direction of the scale screw rod, so that the scale nut drives the scale screw rod to rotate around the self axial direction, and scales at different angles are displayed on the scale window of the supporting seat.
In a preferred scheme, the thread lead angle of the scale nut and the scale screw is larger than the equivalent friction angle, the scale nut is a driving part, and the scale screw is a driven part.
In a preferable scheme, the support seat comprises a hollow sleeve, the scale window is arranged at a position close to one end of the sleeve, the scale screw penetrates into the sleeve, a long notch is axially formed in the area of the sleeve outside the scale window, the scale nut is in threaded fit with the scale screw through the long notch, and the length of the long notch is not less than the stroke of the scale nut; the scale screw rod includes: the thread subsection and the scale display subsection are connected with each other, threads of the scale screw rod are distributed on the thread subsection, a circle of scales at one end of the scale screw rod are distributed on the circumference of the scale display subsection, and the diameter of the scale display subsection is larger than that of the thread subsection.
In a preferable scheme, the other end of the sleeve is provided with an end plate perpendicular to the end face of the end, the end plate is provided with a circular through hole, and one end of the thread section, which is far away from the scale display section, penetrates through the circular through hole; an annular elastic clamp spring is arranged at the connecting position of the thread section and the scale display section, a gap is formed in the clamp spring, and the clamp spring is clamped on the scale screw rod through an opening of the clamp spring.
In a preferred embodiment, the end plate is provided with a through hole through which a phase shift member of the phase shifter passes.
In a preferred embodiment, the end plate protrudes downward from the sleeve to support one end of the sleeve, and a leg for supporting the other end of the sleeve is connected to the lower portion of the outer wall of the sleeve near the other end.
In a preferred aspect, the dial nut includes: the nut comprises a nut body and a mounting base arranged above the nut body; the mounting base is provided with a clamping groove for clamping and connecting a phase shifting part of the phase shifter.
The invention also provides an electric adjusting wire which comprises an outer shell and the downward inclination angle display device, wherein a phase shifter is arranged in the outer shell; the phase shifter includes: the phase shifter comprises a phase shifter body and a rod-shaped phase shifting component movably connected to the phase shifter body; the phase shifting part is fixedly connected with the scale nut.
In a preferred embodiment, the method further comprises the following steps: the end part of the lower inclination angle display device close to the scale window and the scale window are exposed out of the outer shell, and the rest parts are all contained in the outer shell.
In a preferred scheme, the phase shifting device further comprises a driving assembly arranged in the outer shell and used for driving the phase shifting part to reciprocate along the axial direction of the phase shifting part so as to drive the scale nut to move linearly, and the driving assembly comprises: the device comprises a motor, a transmission screw and an adapter; the transmission screw is connected with the motor, the motor can drive the transmission screw to spin, and the transmission screw and the phase-shifting part are arranged in parallel; the adaptor is connected between the transmission screw and the phase-shifting part, one end of the adaptor is in threaded connection with the transmission screw, and the other end of the adaptor is fixedly connected with the phase-shifting part; the motor drives the transmission screw to rotate in a spinning mode so that the adapter piece can reciprocate along the axial direction of the transmission screw, and therefore the phase shifting part is driven to reciprocate along the axial direction of the phase shifting part.
Compared with the prior art, the invention has the following beneficial effects: the scale nut is driven and along the axial rectilinear movement of scale screw rod by the phase shift part who moves the looks ware to make the scale nut drive the scale screw rod around its self rotatory to rectilinear movement becomes rotary motion's mode, shows the scale of the different rotation angles of scale screw rod on the scale window of supporting seat, and the mode that the spin rotation shows has reduced the occupation to installation space, and avoids among the prior art scale stretch out the overlength and fracture or the low temperature that cause freezes the risk. Meanwhile, the lead of the scale screw is larger than the stroke of the phase-shifting part, namely, the large stroke of the linear motion of the phase-shifting part is converted into the small stroke of the rotation of the scale screw, when the moving distance of the phase-shifting part is in a certain proportion on the scale display, and the larger the proportion is, the smaller the displacement of the phase-shifting part does not influence the display of the scale, thereby effectively eliminating the display error.
Drawings
Fig. 1 is a schematic view of a partial structure of the electric tilt antenna according to the embodiment.
Fig. 2 is a schematic view of the structure of fig. 1 with the outer case removed.
Fig. 3 is a schematic diagram illustrating the phase shift unit of fig. 2 after being shifted away from the downward-inclined angle display device.
Fig. 4 is an exploded view of the structure of the downtilt display device of the present embodiment.
Fig. 5 is a schematic view of the matching structure of the scale screw and the scale nut in the embodiment.
Fig. 6 is a schematic view of the structure of fig. 5 from another angle.
Fig. 7 is a front view of the downtilt display device of the present embodiment.
Fig. 8 is a plan view of the downtilt display device of the present embodiment.
Fig. 9 is a bottom view of the lower tilt display device of the present embodiment.
Fig. 10 is a right side view of the downtilt display apparatus of the present embodiment.
Fig. 11 is a left side view of the downtilt display apparatus of the present embodiment.
The reference numerals are explained below: 100. an outer housing; 2. a down tilt display device; 21. a supporting seat; 211. a sleeve; 212. An end plate; 213. a support leg; 22. a scale screw; 221. segmenting the thread; 222. scale display segmentation; 223. a clamp spring; 23. a graduated nut; 231. a nut body; 232. mounting a base; 201. a scale window; 202. a long gap; 203. a circular through hole; 204. perforating; 205. calibration; 206. a card slot; 3. a phase shifter; 31. a phase shifter body; 32. a phase shift section; 4. a drive assembly; 41. a motor; 42. a drive screw; 43. a drive nut; 44. an adapter.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
Referring to fig. 1, the present embodiment provides an electrical tuning wire, which includes: an outer housing 100 (only partially shown), a lower tilt angle display device 2, a phase shifter 3, and a drive assembly 4.
Referring to fig. 2 to 11, further, the downtilt display apparatus 2 is used for displaying the phase travel of the phase shifting unit of the phase shifter 3, and particularly, the downtilt display of a large-travel phase shifter, and the downtilt display apparatus 2 includes: a support base 21, a scale screw 22 and a scale nut 23.
The support base 21 has at least one calibration window 201. The scale screw 22 is rotatably arranged on the supporting seat 21, at least one circle of scales 205 is annularly arranged on the periphery of one end of the scale screw 22, and the position of the scale window 201 corresponds to the position of the scales 205; the scale screw 22 is externally threaded with threads, and the lead of the scale screw 22 is greater than the stroke of the phase shift member. The scale nut 23 is screwed on the scale screw 22, the scale nut 23 is driven by the phase shift part of the phase shifter 3 to move linearly along the axial direction of the scale screw 22, so that the scale nut 23 drives the scale screw 22 to rotate around the self axial direction, and scales at different angles are displayed on the scale window 201 of the support seat 21.
Further, in this embodiment, the thread lead angle of the scale nut 23 and the scale screw 22 of the downward inclination angle display device 2 is greater than the equivalent friction angle, the thread loses the self-locking capability, the scale nut 23 is a driving part, and the scale screw 22 is a driven part.
That is, after the thread loses the self-locking capability, the scale nut 23 can drive the scale screw 22 to rotate and make a circular motion when making a linear motion. Meanwhile, on the premise that the lead of the scale screw 22 is larger than the stroke of the phase shifting part, the rotation angle of the scale screw 22 is smaller than 360 degrees when the phase shifting part of the phase shifter 3 finishes one stroke, so that the scale 205 from the minimum angle to the maximum angle of the phase shifter 3 can be displayed on one circle of the scale screw 22 and then read through the scale window 201.
Specifically, as shown in fig. 4, the support base 21 includes a hollow sleeve 211, the scale window 201 is opened at a position close to one end of the sleeve 211, the scale screw 22 penetrates into the sleeve 211, two symmetrical long notches 202 are axially opened in a region of the sleeve 211 outside the scale window 201, the scale nut 23 is in threaded fit with the scale screw 22 through the long notches 202, and the length of the long notches 202 is not less than the stroke of the scale nut 23.
Preferably, the long notch 202 extends to the other end of the sleeve 211; the two scale windows 201 are symmetrically arranged along the circumference of the sleeve 211, so that the scales can be read from multiple angles.
Further, the other end of the sleeve 211 is provided with an end plate 212 perpendicular to the end surface, and the end plate 212 is provided with a circular through hole 203 for allowing one end of the scale screw 22 to extend into to support the scale screw 22. Preferably, the upper and lower ends of the end plate 212 protrude from the sleeve 211, the upper end of the end plate 212 protruding from the sleeve 211 is provided with a through hole 204 for passing a phase shift member of the phase shifter 3, and the lower end of the end plate 212 supports one end of the sleeve 211.
The support base 21 further includes a leg 213, and the leg 213 is disposed below the outer wall near the other end of the sleeve 211 to support the sleeve 211.
As shown in fig. 4 to 6, the scale screw 22 includes: the thread section 221 and the scale display section 222 are connected with each other, the thread of the scale screw rod 22 is distributed on the thread section 221, a circle of scales 205 at one end of the scale screw rod 22 is distributed on the circumference of the scale display section 222, and the diameter of the scale display section 222 is larger than that of the thread section 221. The scale screw 22 is disposed in the hollow cavity of the sleeve 211, the thread section 221 of the scale screw corresponds to the long notch 202 of the sleeve 211, the scale display section 222 corresponds to the area outside the axial long notch 202 of the sleeve 211, and the scale 205 can be read through the scale window 201.
Furthermore, an annular elastic clamp spring 223 is arranged at the connecting position of the thread section 221 and the scale display section 222, a gap is formed in the clamp spring 223, and the clamp spring 223 is clamped on the scale screw 22 through the opening of the clamp spring 223; preferably, an end surface of the clamp spring 223 abuts against a tangent plane of the end of the long notch 202 close to the calibration window 201 to limit the movement of the calibration screw 22 in the sleeve 211 towards the end where the calibration window 201 is disposed.
In other embodiments, the displacement of the scale screw 22 in the axial direction of the sleeve 211 can also be limited by providing a limiting member, such as a bump, on the inner wall of the sleeve 211 and the scale screw 22 respectively, which are engaged with each other.
The scale nut 23 includes: a nut body 231 and a mounting base 232 disposed above the nut body 231. The mounting base 232 has a card slot 206 for card-fitting the phase shift section to which the phase shifter 3 is connected.
It should be noted that, in this embodiment, the thread on the scale screw 22 is substantially one turn around itself, and the thread on the scale nut 23 is smaller than one turn, and in actual fitting, because the scale nut 23 has a certain thickness in the axial direction, in order to enable the scale screw 22 to rotate at least one turn (360 degrees), the thread on the scale screw 22 is more than one turn around itself.
In other embodiments, the long notch located below the sleeve 211, i.e. on the same side of the leg 213 in its axial direction, may be omitted.
Referring to fig. 1 to 3, the phase shifter 3 includes: the phase shifter comprises a phase shifter body 31 and a rod-shaped phase shifting member 32 movably connected to the phase shifter body 31, wherein the phase shifting member 32 is fixedly connected to a mounting base 232 of the scale nut 23 through a through hole 204 of an end plate 212.
In the embodiment, the phase shift member 32 may also be directly fixedly connected to the mounting base 232 of the scale nut 23.
In other embodiments, the phase shift unit 32 may have other shapes than a rod shape, which is not limited herein.
With continued reference to fig. 1 to 3, the driving assembly 4 is used for driving the phase shifting unit 32 to reciprocate along the axial direction thereof to drive the calibration nut 23 to move along the straight line, and the driving assembly 4 includes: motor 41, drive screw 42, drive nut 43 and adaptor 44.
One end of the transmission screw 42 is connected with the motor 41, the motor 41 can drive the transmission screw 42 to rotate, and the transmission screw 42 is arranged in parallel with the phase shift part 32. The adaptor 44 is connected between the drive screw 42 and the phase shift member 32, and one end of the adaptor 44 is screwed with the drive screw 42 through the drive nut 43 and the other end is fixedly connected with the phase shift member 32. The motor 41 drives the drive screw 42 to rotate, so that the adaptor 44 reciprocates along the axial direction of the drive screw 42, thereby driving the phase shift part 32 to reciprocate along the axial direction thereof.
In the electrically tunable antenna in this embodiment, the phase shifter 3 and the driving assembly 4 are both disposed in the outer casing 100, the end of the downward tilt angle display device 2 close to the calibration window 201 and the calibration window 201 are exposed out of the outer casing 100, and the rest of the electrically tunable antenna is accommodated in the outer casing 100.
The working principle of the electrically tunable antenna is as follows: the scale nut 23 is driven by the phase shifting part 32 of the phase shifter 3 to move linearly along the axial direction of the scale screw 22, so that the scale nut 23 drives the scale screw 22 to rotate around itself, scales 205 of different rotation angles of the scale screw 22 are displayed on the scale window 201 of the supporting seat 21 in a mode of changing linear motion into rotary motion, occupation of an installation space is reduced in a self-rotating and rotating display mode, and the risk of fracture or low-temperature freezing caused by overlong scale extension in the prior art is avoided. Meanwhile, the lead of the phase shift part 32 is greater than the stroke of the phase shift part 22, that is, the large stroke of the linear motion of the phase shift part 32 is converted into the small stroke of the rotation of the phase shift part 22, and when the distance of the movement of the phase shift part 32 on the scale display is in a certain proportion, and the proportion is larger, the display of the scale is not influenced by the tiny displacement of the phase shift part 32, and the display error is effectively eliminated.
Further, when the motor 41 of the driving assembly 4 starts to work, the motor 41 drives the transmission screw rod 42 to do circular motion, the transmission screw rod 42 drives the transmission nut 43 to do linear motion, the adaptor 44 connected with the transmission nut 43 is simultaneously connected with the phase shifting part 32 of the phase shifter 3, and when the transmission nut 43 does linear motion, the transmission nut 43 drives the phase shifting part 32 to do linear motion together; meanwhile, the scale nut 23 connected to the phase shift unit 32 is interlocked. The phase shifter 3 can be adjusted to a set angle by rotating the motor 41 for a set number of turns according to the set parameters, and the scale 205 at one end of the scale screw 22 displays the angle at the same time.
While the present invention has been described with reference to the above exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (9)
1. The utility model provides a downtilt angle display device of electricity accent antenna for show phase place stroke of the phase shift part that moves the looks ware, its characterized in that includes:
the supporting seat is provided with at least one scale window;
the scale screw is rotatably arranged on the supporting seat, at least one circle of scales are annularly arranged on the periphery of one end of the scale screw, and the position of the scale window corresponds to the position of the scales; the scale screw is externally screwed with threads, and the lead of the scale screw is greater than the stroke of the phase-shifting part;
the scale nut is screwed on the scale screw rod and is driven by the phase shifting part of the phase shifter to move linearly along the axial direction of the scale screw rod, so that the scale nut drives the scale screw rod to rotate around the axial direction of the scale screw rod, and scales at different angles are displayed on the scale window of the supporting seat;
the thread lead angle of the scale nut and the scale screw is larger than the equivalent friction angle, the scale nut is a driving part, and the scale screw is a driven part.
2. The downward inclination angle display device according to claim 1, wherein the support seat comprises a hollow sleeve, the scale window is opened at a position close to one end of the sleeve, the scale screw penetrates into the sleeve, a long notch is axially opened in a region of the sleeve outside the scale window, the scale nut is in threaded fit with the scale screw through the long notch, and the length of the long notch is not less than the stroke of the scale nut;
the scale screw rod includes: the thread subsection and the scale display subsection are connected with each other, threads of the scale screw rod are distributed on the thread subsection, a circle of scales at one end of the scale screw rod are distributed on the circumference of the scale display subsection, and the diameter of the scale display subsection is larger than that of the thread subsection.
3. The downward inclination display device according to claim 2, wherein the other end of the sleeve is provided with an end plate perpendicular to the end surface of the sleeve, the end plate is provided with a circular through hole, and one end of the threaded segment, which is far away from the scale display segment, is arranged in the circular through hole in a penetrating manner;
an annular elastic clamp spring is arranged at the connecting position of the thread section and the scale display section, a gap is formed in the clamp spring, and the clamp spring is clamped on the scale screw rod through an opening of the clamp spring.
4. The downtilt display device according to claim 3, wherein the end plate is provided with a through hole through which a phase shift member of the phase shifter passes.
5. The declination display apparatus according to claim 4, wherein the end plate protrudes downward from the sleeve to support one end of the sleeve, and a leg is attached to the sleeve below the outer wall of the sleeve near the other end to support the other end of the sleeve.
6. The downtilt display device according to claim 1, wherein the scale nut comprises: the nut comprises a nut body and a mounting base arranged above the nut body;
the mounting base is provided with a clamping groove for clamping and connecting a phase shifting part of the phase shifter.
7. An electrically tunable antenna, characterized in that, it comprises an outer casing and the downtilt angle display device of any one of claims 1 to 6, a phase shifter is arranged in the outer casing; the phase shifter includes: the phase shifter comprises a phase shifter body and a rod-shaped phase shifting component movably connected to the phase shifter body; the phase shifting part is fixedly connected with the scale nut.
8. An electrically tunable antenna according to claim 7, further comprising: the end part of the lower inclination angle display device close to the scale window and the scale window are exposed out of the outer shell, and the rest parts are all contained in the outer shell.
9. The electrically tunable antenna according to claim 8, further comprising a driving assembly disposed in the outer housing, for driving the phase shifting unit to move back and forth along an axial direction thereof to drive the calibration nut to move linearly, wherein the driving assembly comprises:
a motor;
the transmission screw is connected with the motor, the motor can drive the transmission screw to spin, and the transmission screw is arranged in parallel with the phase shifting part;
the adaptor is connected between the transmission screw and the phase-shifting part, one end of the adaptor is in threaded connection with the transmission screw, and the other end of the adaptor is fixedly connected with the phase-shifting part;
the motor drives the transmission screw to rotate in a spinning mode so that the adapter piece can reciprocate along the axial direction of the transmission screw, and therefore the phase shifting part is driven to reciprocate along the axial direction of the phase shifting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733573.9A CN107565220B (en) | 2017-08-24 | 2017-08-24 | Electrically tunable antenna and downward inclination angle display device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710733573.9A CN107565220B (en) | 2017-08-24 | 2017-08-24 | Electrically tunable antenna and downward inclination angle display device thereof |
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| CN107565220A CN107565220A (en) | 2018-01-09 |
| CN107565220B true CN107565220B (en) | 2021-05-11 |
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| CN201710733573.9A Active CN107565220B (en) | 2017-08-24 | 2017-08-24 | Electrically tunable antenna and downward inclination angle display device thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987928B (en) * | 2018-06-27 | 2024-06-04 | 广东通宇通讯股份有限公司 | Transmission device for phase shifter |
| CN110034401A (en) * | 2019-03-29 | 2019-07-19 | 摩比科技（深圳）有限公司 | The angle of declination display device and antenna of antenna |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038314Y (en) * | 2007-01-15 | 2008-03-19 | 京信通信技术(广州)有限公司 | Communication antenna declination angle separable type control device |
| CN201898206U (en) * | 2010-08-12 | 2011-07-13 | 青岛优通通讯设备有限公司 | Electrically-controlled antenna driving device |
| CN102714354B (en) * | 2011-09-29 | 2014-03-12 | 华为技术有限公司 | Device for adjusting downtilt angle of electrical downtilt antenna |
| CN202817188U (en) * | 2012-09-11 | 2013-03-20 | 广东通宇通讯股份有限公司 | Adjusting device for electric tilt antenna |
| CN102904016B (en) * | 2012-11-07 | 2015-03-18 | 武汉虹信通信技术有限责任公司 | Electric adjusting device with scale regulator |
| KR101383576B1 (en) * | 2012-12-27 | 2014-04-09 | 주식회사 감마누 | Display structure for beam-bilt of antenna |
| CN203250854U (en) * | 2013-05-20 | 2013-10-23 | 摩比天线技术（深圳）有限公司 | Transmission assembly of tunable antenna |
| CN104409854B (en) * | 2014-12-04 | 2017-02-22 | 武汉虹信通信技术有限责任公司 | Regulating device for rotating scale of tunable antenna |
| CN205666333U (en) * | 2016-06-06 | 2016-10-26 | 北京天河鸿城电子有限责任公司 | Remove communication base electricity and transfer antenna transmission |
| CN206163713U (en) * | 2016-11-07 | 2017-05-10 | 京信通信技术(广州)有限公司 | Base station antenna and electrical down -tilting angle display device thereof |
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