CN201421883Y - Transmission mechanism of electric tuning antenna - Google Patents

Transmission mechanism of electric tuning antenna Download PDF

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Publication number
CN201421883Y
CN201421883Y CN 200920130761 CN200920130761U CN201421883Y CN 201421883 Y CN201421883 Y CN 201421883Y CN 200920130761 CN200920130761 CN 200920130761 CN 200920130761 U CN200920130761 U CN 200920130761U CN 201421883 Y CN201421883 Y CN 201421883Y
Authority
CN
China
Prior art keywords
drive screw
transmission nut
transmission
rotation
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200920130761
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Chinese (zh)
Inventor
邬烈锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mobi Antenna Technology Shenzhen Co Ltd
Original Assignee
Mobi Antenna Technology Shenzhen Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mobi Antenna Technology Shenzhen Co Ltd filed Critical Mobi Antenna Technology Shenzhen Co Ltd
Priority to CN 200920130761 priority Critical patent/CN201421883Y/en
Application granted granted Critical
Publication of CN201421883Y publication Critical patent/CN201421883Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a transmission mechanism of an electric tuning antenna, which comprises an installation baseplate. A media driving mechanism and an angle scale driving mechanism are mounted on the installation baseplate, wherein the media driving mechanism comprises a horizontal rotating bracket I, a transmission screw I and a transmission nut I, wherein the horizontal rotating bracketI is mounted on the installation baseplate, both ends of the transmission screw I is supported by the rotating bracket I, the transmission nut I meshes with the transmission screw, and the transmission nut I clings to the installation baseplate and can not rotate along with the transmission screw I due to the limitation of the installation baseplate; and the angle scale driving mechanism comprises a rotating bracket II, a transmission screw II and a transmission nut II, wherein the rotating bracket II is mounted on the installation baseplate, one end of the transmission screw II is supportedby the rotating bracket II while the other end thereof is linked synchronously with the transmission screw I, the transmission nut II and transmission screw II mesh with each other, and the transmission nut II clings to the installation baseplate and can not rotate along with the transmission screw II due to the limitation of the installation baseplate, and the thread leads of the transmission screw I and transmission screw II are different.

Description

A kind of electrical tilt antenna transmission mechanism
Technical field
The utility model relates to the antenna of mobile communication base station field, relates in particular to a kind of electrical tilt antenna transmission mechanism.
Background technology
How current electrical tilt antenna changes the antenna lower decline angle by moving of a medium.The physical property that is limited to this medium, when realizing certain electrical down-tilting angle excursion (such as 0 to 10 degree scope), its distance that moves may be very long, have in addition reach 500mm.The problem of bringing thus has: the driving decrease in efficiency of (1) electrical tilt antenna driver, and the time spent when regulating an angle is elongated, increases the stand-by period of system; (2) extension elongation of electrical tilt antenna angle scale is elongated.The displacement of supposing medium is designed to 500mm, if do not do any conversion, angle scale then correspondingly will stretch out more than the 500mm, influences the installation of antenna, and hinders attractive in appearance.
The utility model content
Problem to be solved in the utility model provides and a kind ofly can improve electrical tilt antenna driver drives efficient, can shorten the electrical tilt antenna transmission mechanism of angle scale extension elongation again.
For addressing the above problem, the technical scheme that the utility model adopted is: the electrical tilt antenna transmission mechanism comprises the installation base plate, media drive mechanism and angle scale driving mechanism are installed on the described installation base plate, described media drive mechanism comprises the left rotation and right rotation bracket I, drive screw I, transmission nut I, the left rotation and right rotation bracket I is installed on installs on the base plate, drive screw I two ends are supported by runing rest I, transmission nut I is engaged with, transmission nut I is close to and base plate is installed the base plate restriction is installed and can not rotates with drive screw I, when causing drive screw I rotation, screw thread promotes transmission nut I axial linear movement, transmission nut I is in order to connect medium to drive the medium axial linear movement, described angle scale driving mechanism comprises runing rest II, drive screw II, transmission nut II, runing rest II is installed on and installs on the base plate, drive screw II one end is supported by runing rest II, the other end is connected with synchronous interaction with drive screw I, the engagement of transmission nut II and drive screw II, transmission nut II is close to and base plate is installed the base plate restriction is installed and can not rotates with drive screw II, when causing drive screw II rotation, screw thread promotes transmission nut II axial linear movement, transmission nut II in order to the connection angle scale to drive the angle scale axial linear movement, drive screw I, drive screw II lead difference, therefore the lead when two drive screws manufactures certain ratio, can make that transmission nut I becomes this ratio with the displacement of transmission nut II when these two drive screw rotations, also can become this ratio thereby the medium that transmission nut I and transmission nut II are driven respectively stretches out (or indentation) length with angle scale.
In the such scheme, described media drive mechanism also is provided with chocking construction, described chocking construction comprises the stopping projection at transmission nut I two ends and the locating snap ring at drive screw I two ends, the relevant position also is provided with projection on the locating snap ring, when transmission nut I moves to extreme position, stopping projection and locating snap ring upper protruding block move interference, the continuation rotation that limits drive screw thus promptly realizes braking to mechanism, when this means of retention helps mechanism and shuts down, it is lax that the screw thread that is meshed still keeps, and the utility model is not limited to this kind means of retention certainly.
In the such scheme, described drive screw II is connected interlock with rotation axis I by hole axle fit system.
The beneficial effects of the utility model are: the utility model is under the prerequisite that keeps the cheap thread transmission of employing, and simple in structure, building block is few, cheap, be easy to make, improved the driving efficient of electrical tilt antenna driver effectively, and shorten the extension elongation of angle scale.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is described in further details:
Fig. 1 is the structural representation of the utility model embodiment integral body;
Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment integral body;
Fig. 3 is the structural representation of mechanism of the utility model embodiment media drive mechanism;
Fig. 4 is the decomposition texture schematic diagram of the utility model embodiment media drive mechanism;
Fig. 5 is the structural representation of the utility model embodiment angle scale driving mechanism;
Fig. 6 is the decomposition texture schematic diagram of the utility model embodiment angle scale driving mechanism;
Fig. 7 is the utility model embodiment application state structural representation.
Embodiment
As shown in Figure 1 and Figure 2, the electrical tilt antenna transmission mechanism comprises installs base plate 1, install on the base plate 1 media drive mechanism and angle scale driving mechanism are installed, media drive mechanism comprises drive screw I9, transmission nut I2, locating snap ring 10, locating snap ring 8, left rotation and right rotation bracket I 11 and 3; The angle scale driving mechanism comprises drive screw II4, transmission nut II7, runing rest II5, and transmission nut II7 is in order to be connected with angle scale 6 and to drive its motion.
As Fig. 3, shown in Figure 4, left rotation and right rotation bracket I 11 and 3 is installed on installs on the base plate, drive screw I9 two ends are supported by runing rest I11 and 3, when drive screw I9 rotates, locating snap ring 10 and locating snap ring 8 also will rotate thereupon, the engagement of transmission nut I2 and drive screw I9, transmission nut I2 is close to and base plate 1 is installed base plate 1 restriction is installed and can not rotates with drive screw I, when causing drive screw I9 rotation, screw thread promotes transmission nut I2 axial linear movement, respectively there is a stopping projection transmission nut I2 rear and front end, the locating snap ring 10 at drive screw I9 two ends and locating snap ring 8 also respectively have a projection, when transmission nut I2 moves near locating snap ring 10 or locating snap ring 8, stopping projection and locating snap ring 10 or locating snap ring 8 upper protruding blocks move interference, can make the rotation of power transmission shaft I9 stop, when this means of retention helps mechanism and shuts down, it is lax that the screw thread that is meshed still keeps, as previously mentioned, this means of retention is a kind of enumerating, the utility model is not limited to certain means of retention, like this, when drive screw I9 rotates, transmission nut I2 will move along the axis direction of drive screw I9, thereby realize the stroke of the controllable distance between locating snap ring 10 and locating snap ring 8 that shuttles back and forth, transmission nut I2 is connected with the phase shift medium and drives the phase shift medium and moves, so this controlled stroke is promptly represented the shift motion of electrical tilt antenna phase shift medium.
As Fig. 5, shown in Figure 6, the angle scale driving mechanism comprises runing rest II5, drive screw II4, transmission nut II7, runing rest II5 is installed on and installs on the base plate, drive screw II4 one end is supported by runing rest II, the other end is connected with synchronous interaction with drive screw I, drive screw II4 end is the square axis structure, locating snap ring 8 is cubic pore structure, said two devices is connected with a joggle by cubic shaped hole shaft, can realize synchronous rotation, drive screw I9 two ends are the square axis structure, locating snap ring 8 cubic hole of being with and the engagement of drive screw I9 square axis, i.e. and the rotation of locating snap ring 8 drives drive screw I9 and rotates synchronously.The structure of locating snap ring 10 is identical with locating snap ring 8, and it is with cubic hole and the engagement of drive screw I9 square axis, i.e. drive screw I9 drive locating snap ring 10 rotates synchronously.The connected mode processing of this square axis is simple, enumerates for a kind of, and the utility model is not limited to certain connected mode.
The engagement of transmission nut II7 and drive screw II4, transmission nut II7 is close to and base plate 1 is installed base plate 1 restriction is installed and can not rotates with drive screw II4, when causing drive screw II4 rotation, screw thread promotes transmission nut II7 axial linear movement, transmission nut II7 in order to connection angle scale 6 to drive angle scale 6 axial linear movement, when drive screw II4 rotates, transmission nut II7 will drive angle scale 6 and be moved, and moving direction is along the axis of drive screw II4, thereby that has realized angle scale 6 stretches out (or indentation) length, the synchronous change along with the running of mechanism.
As mentioned above, can make it rotation by from drive screw II4 input power, thereby drive drive screw I9 rotation, and then making transmission nut I2 realize a controlled shift motion, transmission nut I2 promotes the phase shift medium and moves, and has promptly realized the adjusting of electrical tilt antenna lower decline angle.Simultaneously, drive screw II4 rotation drives transmission nut II7 generation and moves axially, and transmission nut II7 connection angle scale 6 drives angle scale 6 and moves thereupon, promptly realizes the demonstration of the current electrical down-tilting angle of electrical tilt antenna.
The lead of drive screw I9 and the lead of drive screw II4 are manufactured certain ratio, when from drive screw II4 input rotary power, identical angular velocity of rotation underdrive nut I2 and the translational speed of transmission nut II7 also will become the amplification (or dwindling) of this ratio.The input of this power in the electrical tilt antenna field, is provided by driver usually, and the mechanism that this speed is amplified has improved the driving efficient of driver undoubtedly.Such as, the lead of drive screw I9 and the lead of drive screw II4 were manufactured 5: 1, when drive screw II4 rotation 1 circle, drive transmission nut II7 moves and is specially S, the displacement of the drive screw of the transmission A9 of rotation drive synchronously I2 will be 5S, so angle scale 6 can show in the extension elongation of S that the phase shift medium moves the angle variation that 5S length is produced, and the angle that shows changes with moving synchronously of phase shift medium.As previously mentioned, this ratio be set to a kind of enumerating, the utility model is not limited to certain ratio and sets.
In Fig. 7, showed the application state of the utility model embodiment.As seen from Figure 7, the running of mechanism, moving of a controlled stroke of output transmission nut I2 moved by connecting drive phase shift medium 12, thereby realizes the change of electrical tilt antenna lower decline angle; Simultaneously, the running of mechanism, moving of output angle scale 6 makes angle scale 6 demonstrate phase shift medium 12 relative to the long respective angles changing value that is brought that moves in little extension elongation at one by dwindling of lead.As previously mentioned, this is applied as a kind of enumerating, and the utility model is not limited to this and enumerates.
In sum, the utility model provides a kind of simple and reliable transmission mechanism, has both improved the driving efficient of electrical tilt antenna driver, shortens the extension elongation of angle scale again.

Claims (3)

1, a kind of electrical tilt antenna transmission mechanism, it is characterized in that: described electrical tilt antenna transmission mechanism comprises the installation base plate, media drive mechanism and angle scale driving mechanism are installed on the described installation base plate, described media drive mechanism comprises the left rotation and right rotation bracket I, drive screw I, transmission nut I, the left rotation and right rotation bracket I is installed on installs on the base plate, drive screw I two ends are supported by runing rest I, transmission nut I is engaged with, transmission nut I is close to and base plate is installed the base plate restriction is installed and can not rotates with drive screw I, when causing drive screw I rotation, screw thread promotes transmission nut I axial linear movement, transmission nut I is in order to connect medium to drive the medium axial linear movement, described angle scale driving mechanism comprises runing rest II, drive screw II, transmission nut II, runing rest II is installed on and installs on the base plate, drive screw II one end is supported by runing rest II, the other end is connected with synchronous rotation with drive screw I, the engagement of transmission nut II and drive screw II, transmission nut II is close to and base plate is installed the base plate restriction is installed and can not rotates with drive screw II, when causing drive screw II rotation, screw thread promotes transmission nut II axial linear movement, transmission nut II in order to the connection angle scale to drive angle scale axial linear movement, drive screw I, drive screw II lead difference.
2, electrical tilt antenna transmission mechanism according to claim 1, it is characterized in that: described media drive mechanism also is provided with chocking construction, described chocking construction comprises the stopping projection at transmission nut I two ends and the locating snap ring at drive screw I two ends, the relevant position also is provided with projection on the locating snap ring, when transmission nut I moves to extreme position, stopping projection and locating snap ring upper protruding block move interference, and the continuation rotation that limits drive screw thus promptly realizes braking to mechanism.
3, electrical tilt antenna transmission mechanism as claimed in claim 1 or 2 is characterized in that: described drive screw II is connected rotation synchronously with rotation axis I by hole axle fit system.
CN 200920130761 2009-04-13 2009-04-13 Transmission mechanism of electric tuning antenna Expired - Fee Related CN201421883Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920130761 CN201421883Y (en) 2009-04-13 2009-04-13 Transmission mechanism of electric tuning antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920130761 CN201421883Y (en) 2009-04-13 2009-04-13 Transmission mechanism of electric tuning antenna

Publications (1)

Publication Number Publication Date
CN201421883Y true CN201421883Y (en) 2010-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200920130761 Expired - Fee Related CN201421883Y (en) 2009-04-13 2009-04-13 Transmission mechanism of electric tuning antenna

Country Status (1)

Country Link
CN (1) CN201421883Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097681A (en) * 2010-12-09 2011-06-15 广东通宇通讯股份有限公司 Multi-array electric tuning base station antenna adjusting device
CN104409854A (en) * 2014-12-04 2015-03-11 武汉虹信通信技术有限责任公司 Regulating device for rotating scale of tunable antenna
CN111129715A (en) * 2015-12-31 2020-05-08 华为技术有限公司 Antenna comprising beam forming means
CN111129715B (en) * 2015-12-31 2021-12-10 华为技术有限公司 Antenna comprising beam forming means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097681A (en) * 2010-12-09 2011-06-15 广东通宇通讯股份有限公司 Multi-array electric tuning base station antenna adjusting device
CN102097681B (en) * 2010-12-09 2014-02-26 广东通宇通讯股份有限公司 Multi-array electric tuning base station antenna adjusting device
CN104409854A (en) * 2014-12-04 2015-03-11 武汉虹信通信技术有限责任公司 Regulating device for rotating scale 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
CN111129715A (en) * 2015-12-31 2020-05-08 华为技术有限公司 Antenna comprising beam forming means
CN111129715B (en) * 2015-12-31 2021-12-10 华为技术有限公司 Antenna comprising beam forming means

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100310

Termination date: 20160413

CF01 Termination of patent right due to non-payment of annual fee