CN108321537B - Antenna electric downtilt angle control device - Google Patents
Antenna electric downtilt angle control device Download PDFInfo
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- CN108321537B CN108321537B CN201711485027.4A CN201711485027A CN108321537B CN 108321537 B CN108321537 B CN 108321537B CN 201711485027 A CN201711485027 A CN 201711485027A CN 108321537 B CN108321537 B CN 108321537B
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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
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a control device for an antenna electrical downtilt angle, which comprises an input assembly, wherein the input assembly comprises a reciprocating screw, a limiting rod and a movable stop block, the reciprocating screw can rotate along a first rotation direction and drive the movable stop block to reciprocate along the axis direction of the reciprocating screw, the reciprocating screw can rotate along the opposite direction of the first rotation direction and drive the movable stop block and the limiting rod to revolve along the axis of the reciprocating screw, and the movable stop block is provided with a pressing end; and the output assembly comprises a travel rod fixedly arranged at a first preset position and a mounting piece in sliding fit with the travel rod, and the pressing end of the movable stop block can be selectively pressed and matched with the corresponding mounting piece. The control device for the electric downtilt angle of the antenna can realize independent and accurate control of the downtilt angles of two or more beam antennas, and has compact structure and small adjustment error.
Description
Technical Field
The invention relates to the technical field of mobile communication equipment, in particular to a control device for an antenna electrical downtilt angle.
Background
With the increasing number of mobile communication terminal users, the network capacity requirements of stations in a mobile cellular network are increasing, and meanwhile, the interference between different stations and even between different sectors of the same station is required to be minimized, namely, the maximization of the network capacity and the minimization of the interference are realized. This is typically achieved by adjusting the downtilt of the antenna beam at the station.
Currently, the way to adjust the beam downtilt angle is divided into: mechanical downtilt and electronic downtilt, while electronic downtilt has obvious advantages, and is a current mainstream and a future development trend. The traditional electronic downtilt transmission device has a complex structure, and the adjustment of the downtilt of the antenna downbeam has a large error.
Disclosure of Invention
Based on this, it is necessary to provide a control device for the electrical downtilt angle of an antenna, which can realize independent and precise control of the downtilt angles of two or more beam antennas, and has a compact structure and small adjustment error.
The technical scheme is as follows:
a control device for an antenna electrical downtilt angle, comprising: the input assembly comprises a rotatable reciprocating screw, a limiting rod and a movable stop block, wherein the limiting rod is arranged at intervals with the reciprocating screw, the movable stop block is in spiral fit with the reciprocating screw and is in sliding fit with the limiting rod, the reciprocating screw can rotate along a first rotation direction and drive the movable stop block to reciprocate along the axis direction of the reciprocating screw, the reciprocating screw can rotate along the opposite direction of the first rotation direction and drive the movable stop block and the limiting rod to revolve along the axis of the reciprocating screw, and the movable stop block is provided with a pressing end; and the output assembly comprises a back-and-forth movement which is fixedly arranged at a first preset position in the length direction, and the pressing end of the movable stop block can be selectively matched with the corresponding mounting piece in a pressing mode so as to drive the mounting piece to move back and forth along the length direction of the travel rod.
When the control device for the electric downtilt angle of the antenna is used, the relative position of the mounting piece on the travel rod needs to be adjusted; if the pressing end of the movable stop block can be in pressing fit with the corresponding mounting piece and the adjusting direction is correct, the reciprocating screw is only required to rotate along the first rotating direction, the reciprocating screw only rotates and drives the movable stop block to move along the axial direction of the reciprocating screw, and the movable stop block is in sliding fit with the limiting rod (the movable stop block does not rotate and only moves up and down), so that the mounting piece can be stably pushed to move to a required position; if the pressing end of the movable stop block cannot be in pressing fit with the corresponding mounting piece or the adjusting direction is incorrect, the reciprocating screw rod can be made to rotate in the opposite direction of the first rotating direction, the movable stop block and the limiting rod are driven to revolve along the axis of the reciprocating screw rod, the pressing end position of the movable stop block is adjusted, the pressing end of the movable stop block can be in pressing fit with the corresponding mounting piece, the reciprocating screw rod is made to rotate in the first rotating direction, and the reciprocating screw rod only rotates and drives the movable stop block to move along the axis direction of the reciprocating screw rod, so that the mounting piece can be pushed to move to a required position. The control device for the electric downtilt angle of the antenna can realize the adjustment of the downtilt angles of two or more beam antennas, and has reliable structure and convenient implementation; meanwhile, the transmission device for converting rotary power into linear motion is reduced, so that error values in the antenna downward inclination angle adjusting process can be reduced, and the antenna downward inclination angle is adjusted more accurately.
The technical scheme is further described as follows:
in one embodiment, the second mounting plate is provided with a groove for accommodating the positioning block, and the output assembly is arranged outside the groove. The positioning stop block is convenient to set through the groove, and when the installation piece is prevented from moving to the bottom of the second installation plate, collision occurs with the positioning stop block, and movement interference is generated.
In one embodiment, the mounting member is provided with a mounting portion for mounting the phase shifter and an abutting protrusion in abutting fit with the abutting end, the mounting portion is staggered with the abutting protrusion, and the abutting protrusion is arranged close to the reciprocating screw. Therefore, the phase shifter can be installed through the installation part, and the position of the phase shifter can be adjusted by adjusting the relative position of the installation piece and the travel rod; meanwhile, the pressing bulge is arranged, so that the pressing contact between the mounting piece and the movable stop block is more sufficient, and the linear power is convenient to transfer.
In one embodiment, the travel bar is provided with a limiting rack arranged along the length direction of the travel bar, and the mounting piece is provided with a limiting structure which is in extrusion fit with the limiting teeth of the limiting rack. And then make the removal of installed part on the stroke pole need overcome certain frictional resistance through limit structure and the extrusion cooperation of the spacing tooth of spacing rack, avoid the installed part to remove because of self gravity or other outside striking just take place, the installed part only receives the thrust that removes the dog and give when promptly, and then makes the regulation of antenna downtilt more accurate.
In one embodiment, the device further comprises a mounting assembly, wherein the mounting assembly comprises a first mounting plate and a second mounting plate which are arranged at intervals; the reciprocating screw, the limiting rod and the movable stop block can be arranged between the first mounting plate and the second mounting plate, and the travel rod is fixedly arranged between the first mounting plate and the second mounting plate. Therefore, the input assembly and the output assembly are combined together by arranging the first mounting plate and the second mounting plate to form the portable and field-mounted antenna electric downtilt angle control equipment.
In one embodiment, the reciprocating screw is provided with a connector disposed outside the first mounting plate. Therefore, the connecting body is connected with the rotary power output end of the power device, so that the reciprocating screw rod can be conveniently driven to rotate.
In one embodiment, the input assembly further comprises a positioning stop block, the positioning stop block is provided with a first connecting hole fixedly connected with the limiting rod and a second connecting hole fixedly connected with one end of the reciprocating screw rod, the first connecting hole and the second connecting hole are arranged at intervals, and one end of the reciprocating screw rod penetrates through the second connecting hole and is rotationally connected with the second mounting plate. Therefore, the parallel interval arrangement of the limiting rod and the reciprocating screw is realized through the positioning stop block, so that the stress is uniform when the moving stop block moves up and down, the movement is more stable, and the power is accurately transmitted; and when the reciprocating screw rod rotates along the reverse direction of the first rotation direction, the positioning stop block is driven to rotate, and then the limiting rod is driven to revolve along the axis of the reciprocating screw rod.
In one embodiment, the mounting member is provided with a mating hole in socket joint with the travel bar, and the limiting structure comprises a rolling body capable of elastically resetting and arranged on the inner wall of the mating hole, and the rolling body is in extrusion fit with the limiting teeth of the limiting rack. And further, the friction sliding fit between the mounting piece and the travel rod is realized by utilizing the fit of the rolling bodies and the limiting teeth.
In one embodiment, the device further comprises a first unidirectional component, the first unidirectional component comprises a first rotating piece capable of unidirectional rotation along a first rotation direction and a second rotating piece used for limiting unidirectional rotation of the first rotating piece, the first rotating piece is fixedly connected with the reciprocating screw in a transmission manner, the second rotating piece can only rotate along the reverse direction of the first rotation direction and is arranged on the first mounting plate, and the limiting rod can rotate along with the second rotating piece. And further, the first unidirectional component is utilized to realize up-and-down movement or revolution of the movable stop block. Specifically, when the reciprocating screw rod rotates along the first rotation direction, the first rotation piece also rotates along the first rotation direction, but the second rotation piece is fixed, at the moment, the reciprocating screw rod only rotates, the limiting rod is fixed, and the reciprocating screw rod drives the movable stop block to reciprocate along the axial direction of the reciprocating screw rod; when the reciprocating screw rod rotates in the opposite direction of the first rotating direction, the first rotating piece cannot rotate in the first rotating direction and can only rotate along the opposite direction of the second rotating piece in the first rotating direction, so that the movable stop block and the limiting rod are driven to revolve along the axis of the reciprocating screw rod.
In one embodiment, the device further comprises a second unidirectional component, the second unidirectional component is provided with a third rotating piece fixedly connected with the second rotating piece, one end of the limiting rod is fixedly connected with the third rotating piece, and the third rotating piece can only rotate in the opposite direction of the first rotating direction and is arranged on the first mounting plate. And further, the second rotating member is rotated only in the opposite direction to the first rotating direction by the third rotating member of the second unidirectional assembly.
In one embodiment, the first unidirectional component is a first unidirectional bearing, the first rotating member is an inner ring of the first unidirectional bearing, and the second rotating member is an outer ring of the first unidirectional bearing; the third rotating piece is provided with a one-way convex tooth, the second one-way assembly further comprises a fixed disc which can be elastically reset and is arranged on the first mounting plate, and the fixed disc is provided with a one-way concave tooth which is in limit fit with the one-way convex tooth; or the second unidirectional component is a second unidirectional bearing, the third rotating piece is an inner ring of the second unidirectional bearing, and the second unidirectional component further comprises an outer ring used for limiting unidirectional rotation of the third rotating piece. Therefore, the revolution or up-and-down movement of the movable stop block can be realized by utilizing a ratchet mechanism or a one-way bearing, and the structure has high response speed and higher adjustment precision; the specific implementation manner of the method can be selected according to actual situations, and will not be described herein. In one embodiment, the third rotating member is provided with a marking rod, the first mounting plate is provided with an annular groove for accommodating the marking rod, and the annular groove is provided with a detection notch. And the sensor can be used for identifying the position of the marking rod to judge the revolution position of the movable stop block, so that the position calibration before use is convenient.
In one embodiment, the device further comprises a fourth rotating member, the fourth rotating member is fixedly connected with one end of the limiting rod, the fourth rotating member can only rotate along the opposite direction of the first rotating direction, and one end of the fourth rotating member is arranged on the outer wall of the first mounting plate and is provided with a connecting end connected with the rotating output end of the second power device.
Drawings
Fig. 1 is a first exploded view of a control device for electrical downtilt of an antenna according to the present invention;
fig. 2 is a second exploded view of the antenna electrical downtilt control device according to the present invention;
FIG. 3 is a schematic diagram illustrating the assembly of the movable block and the mounting member according to the present invention;
fig. 4 is a schematic structural diagram of a control device for an antenna electrical downtilt angle according to the present invention;
fig. 5 is a schematic diagram of a control device for controlling an electrical downtilt angle of an antenna according to the present invention;
fig. 6 is a schematic view of the fourth rotary member according to the present invention after installation.
Reference numerals illustrate:
110. the device comprises a first mounting plate, 112, an annular groove, 114, a detection notch, 120, a second mounting plate, 122, a groove, 200, an input assembly, 210, a reciprocating screw, 212, a connector, 220, a limit rod, 230, a stop block, 232, a pressing end, 240, a positioning stop block, 242, a first connecting hole, 244, a second connecting hole, 300, an output assembly, 310, a travel rod, 312, a limit rack, 320, a mounting piece, 322, a mounting part, 324, a pressing protrusion, 326, a matching hole, 330, a limit structure, 332, a rolling body, 400, a first unidirectional assembly, 410, a first rotary piece, 420, a second rotary piece, 500, a second unidirectional assembly, 510, a third rotary piece, 512, a unidirectional convex tooth, 514, a marking rod, 520, a fixed disc, 522, a unidirectional concave tooth, 600, a fourth rotary piece, 10 and a return spring.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples 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 "mounted," "disposed," or "mounted" 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 as "fixed transmission connection" and the other element, the two elements may be fixed in a detachable connection manner, or may be fixed in a non-detachable connection manner, such as sleeving, clamping, integrally forming, fixing, welding, etc., which may be implemented in the prior art, and are not further described herein. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment. The "first rotational direction" may be defined as a clockwise direction (-), and the "opposite direction of the first rotational direction" as a counterclockwise direction (+).
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. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terms "first," "second," and "third" in this specification do not denote a particular quantity or order, but rather are used for distinguishing between similar or identical items.
As shown in fig. 1 to 3, a device for controlling an electrical downtilt angle of an antenna according to the present invention includes: the installation assembly comprises a first installation plate 110 and a second installation plate 120 which are arranged at intervals; the input assembly 200, the input assembly 200 includes a reciprocating screw 210 rotatably disposed between the first mounting plate 110 and the second mounting plate 120, a limiting rod 220, and a moving stop 230, the limiting rod 220 is disposed at intervals with the reciprocating screw 210, the moving stop 230 is in screw fit with the reciprocating screw 210 and is in sliding fit with the limiting rod 220, the reciprocating screw 210 can rotate along the first rotation direction and drives the moving stop 230 to reciprocate along the axis direction of the reciprocating screw 210, the reciprocating screw 210 can rotate along the opposite direction of the first rotation direction and drives the moving stop 230 and the limiting rod 220 to revolve along the axis of the reciprocating screw 210, and the moving stop 230 is provided with a pressing end 232; and at least two output assemblies 300 arranged at intervals along the circumferential direction, wherein the output assemblies 300 comprise a travel bar 310 fixedly arranged between the first mounting plate 110 and the second mounting plate 120, and a mounting piece 320 in sliding fit with the travel bar 310, the mounting piece 320 can move back and forth along the length direction of the travel bar 310, and the pressing end 232 of the moving stop block 230 can be selectively pressed and matched with the corresponding mounting piece 320 so as to drive the mounting piece 320 to move back and forth along the length direction of the travel bar 310.
As shown in fig. 1 to 4, when the above-mentioned antenna electrical downtilt control device is used, it is necessary to adjust the relative position of the mounting member 320 on the travel bar 310; if the pressing end 232 of the moving block 230 can be pressed and matched with the corresponding mounting piece 320, and the adjusting direction is correct, only the reciprocating screw 210 needs to be rotated along the first rotating direction, the reciprocating screw 210 only rotates and drives the moving block 230 to move along the axial direction of the reciprocating screw 210, and the moving block 230 is in sliding fit with the limiting rod 220 (the moving block 230 does not rotate and only moves up and down), so that the mounting piece 320 can be pushed to move to a required position smoothly; if the pressing end 232 of the moving block 230 cannot be pressed and matched with the corresponding mounting piece 320 or the adjusting direction is incorrect, the reciprocating screw 210 can be rotated in the opposite direction of the first rotating direction, the moving block 230 and the limiting rod 220 are driven to revolve along the axis of the reciprocating screw 210, the position of the pressing end 232 of the moving block 230 is adjusted, the pressing end 232 of the moving block 230 can be pressed and matched with the corresponding mounting piece 320, the reciprocating screw 210 is rotated in the first rotating direction, the reciprocating screw 210 only rotates and drives the moving block 230 to move along the axis direction of the reciprocating screw 210, and the mounting piece 320 can be pushed to move to the required position. The control device for the electric downtilt angle of the antenna can realize the adjustment of the downtilt angles of two or more beam antennas, and has reliable structure and convenient implementation; meanwhile, the transmission device for converting rotary power into linear motion is reduced, so that error values in the antenna downward inclination angle adjusting process can be reduced, and the antenna downward inclination angle is adjusted more accurately.
As shown in fig. 1 and 5, in addition to the above embodiment, the reciprocating screw 210 is provided with a connector 212 provided outside the first mounting plate 110. And thus is connected to the rotary power output end of the power unit through the connection body 212, so as to facilitate driving the reciprocating screw 210 to rotate.
As shown in fig. 1 to 5, the input assembly 200 further includes a positioning block 240, where the positioning block 240 is provided with a first connection hole 242 fixedly connected to the stop lever 220, and a second connection hole 244 fixedly connected to one end of the reciprocating screw 210, the first connection hole 242 and the second connection hole 244 are disposed at a distance from each other, and one end of the reciprocating screw 210 passes through the second connection hole 244 and is rotatably connected to the second mounting plate 120. Therefore, the parallel interval arrangement of the limiting rod 220 and the reciprocating screw 210 is realized through the positioning stop block 240, so that the stress is uniform when the moving stop block 230 moves up and down, the movement is more stable, and the power is accurately transmitted; and when the reciprocating screw 210 rotates in the opposite direction of the first rotation direction, the positioning block 240 is driven to rotate, so as to drive the stop rod 220 to revolve along the axis of the reciprocating screw 210.
Further, the second mounting plate 120 is provided with a groove 122 for accommodating the positioning block 240, and the output assembly 300 is disposed outside the groove 122. The positioning stop block 240 is convenient to set by the groove 122, so that the installation piece 320 is prevented from colliding with the positioning stop block 240 to generate movement interference when moving to the bottom of the second installation plate 120.
As shown in fig. 1 to 5, in any of the above embodiments, the mounting member 320 is provided with a mounting portion 322 for connecting the phase shifter driving member and a pressing protrusion 324 that is press-fitted to the pressing end 232, the mounting portion 322 is offset from the pressing protrusion 324, and the pressing protrusion 324 is disposed close to the reciprocating screw 210. Thus, the phase shifter driving member may include a transmission rod connected to the phase shifter shifting part, and thus the phase of the phase shifter may be adjusted by adjusting the relative position of the mounting member 320 and the stroke rod 310; meanwhile, the abutting bulge 324 is arranged, so that the abutting contact between the mounting piece 320 and the movable stop block 230 is more sufficient, and the linear power is convenient to transmit. Further, the travel bar 310 is provided with a limiting rack 312 disposed along a length direction thereof, and the mounting member 320 is provided with a limiting structure 330 in press fit with the limiting teeth of the limiting rack 312. And then, the movement of the mounting piece 320 on the travel bar 310 is required to overcome a certain friction resistance through the extrusion fit of the limiting structure 330 and the limiting teeth of the limiting rack 312, so that the movement of the mounting piece 320 due to self gravity or other external impacts is avoided, namely, the movement of the mounting piece 320 only occurs when the mounting piece is subjected to the thrust given by the moving stop block 230, and the adjustment of the downward inclination angle of the antenna is more accurate.
Specifically, the mounting member 320 is provided with a mating hole 326 that is in socket-joint with the travel bar 310, and the limiting structure 330 includes a rolling body 332 that is capable of elastically resetting and disposed on an inner wall of the mating hole 326, and the rolling body 332 is in extrusion-fit with the limiting teeth of the limiting rack 312. Further, the rolling body 332 is matched with the limiting teeth, so that the mounting piece 320 is in friction sliding fit with the travel rod 310.
As shown in fig. 1, 2 and 5, on the basis of any of the above embodiments, the device further includes a first unidirectional assembly 400, where the first unidirectional assembly 400 includes a first rotating member 410 capable of unidirectional rotation along a first rotation direction and a second rotating member 420 for limiting unidirectional rotation of the first rotating member 410, the first rotating member 410 is fixedly connected with the reciprocating screw 210 in a transmission manner, the second rotating member 420 is capable of rotating only along a direction opposite to the first rotation direction and is disposed on the first mounting plate 110, and the limiting rod 220 can rotate along with the second rotating member 420, so that up-and-down movement or revolution of the moving block 230 is realized by using the first unidirectional assembly 400. Specifically, when the reciprocating screw 210 rotates in the first rotation direction, the first rotating member 410 also rotates in the first rotation direction, but the second rotating member 420 is fixed, at this time, the reciprocating screw 210 rotates only, the stop lever 220 is fixed, and the reciprocating screw 210 drives the moving block 230 to reciprocate along the axis direction of the reciprocating screw 210; when the reciprocating screw 210 rotates in the opposite direction of the first rotation direction, the first rotating member 410 cannot rotate in the first rotation direction, but only rotates in the opposite direction of the first rotation direction along with the second rotating member 420, so as to drive the moving stop block 230 and the limiting rod 220 to revolve along the axis of the reciprocating screw 210.
Further, the second unidirectional assembly 500 is further included, the second unidirectional assembly 500 is provided with a third rotating member 510 fixedly connected with the second rotating member 420, one end of the limiting rod 220 is fixedly connected with the third rotating member 510, and the third rotating member 510 can only rotate in the opposite direction of the first rotating direction and is arranged on the first mounting plate 110. Further, the second rotary member 420 is rotated only in the opposite direction to the first rotary direction by the third rotary member 510 of the second unidirectional assembly 500.
Specifically, the first unidirectional assembly 400 is a first unidirectional bearing, the first rotating member 410 is an inner ring of the first unidirectional bearing, and the second rotating member 420 is an outer ring of the first unidirectional bearing; the third rotating member 510 is provided with a unidirectional convex tooth 512, the second unidirectional assembly 500 further comprises a fixed disc 520 capable of elastically resetting and arranged on the first mounting plate 110, and the fixed disc 520 is provided with a unidirectional concave tooth 522 in limit fit with the unidirectional convex tooth 512; or the second unidirectional assembly 500 is a second unidirectional bearing, the third rotating member 510 is an inner ring of the second unidirectional bearing, and the second unidirectional assembly 500 further includes an outer ring for restricting unidirectional rotation of the third rotating member 510. Therefore, the revolution or up-and-down movement of the moving block 230 can be realized by using a ratchet mechanism or a one-way bearing, and the structure has high response speed and higher adjustment precision; the specific implementation manner of the method can be selected according to actual situations, and will not be described herein.
In addition, the third rotating member 510 is provided with a marking rod 514, the first mounting plate 110 is provided with an annular groove 112 for accommodating the marking rod 514, and the annular groove 112 is provided with a detection notch 114. Further, the sensor can be used to identify the position of the indication rod 514 to determine the revolution position of the movable stop block 230, so as to facilitate the position calibration before use.
As shown in fig. 6, in another embodiment, the control device for the electrical downtilt angle of the antenna further includes a fourth rotating member 600, wherein the fourth rotating member 600 is fixedly connected to one end of the limiting rod 220, the fourth rotating member 600 can rotate only in the opposite direction of the first rotating direction, and one end of the fourth rotating member 600 is disposed on the outer wall of the first mounting plate 110 and is provided with a connection end 610 connected to the rotation output end of the second power device (not shown). Therefore, the second power device (second power device) is provided to drive the fourth rotating member 600 to rotate, and further drive the limiting rod to rotate, the movable block 230 performs position selection and press fit with the corresponding mounting member 320, and the first power device (not shown) is utilized to drive the reciprocating screw 210 to rotate to drive the movable block 230 to move back and forth, so that another rotation is provided for position selection of the movable block 230 and movement of the driving mounting member 320. It should be noted that the unidirectional control principle that the fourth rotating member 600 can rotate only in the opposite direction to the first rotating direction may be implemented with reference to the third rotating member 510. The first power device and the second power device can be a servo motor, a hydraulic rotary valve and the like.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (12)
1. A control device for an electrical downtilt angle of an antenna, comprising:
the input assembly comprises a rotatable reciprocating screw, a limiting rod and a movable stop block, wherein the limiting rod is arranged at intervals with the reciprocating screw, the movable stop block is in spiral fit with the reciprocating screw and is in sliding fit with the limiting rod, the reciprocating screw can rotate along a first rotation direction and drive the movable stop block to reciprocate along the axis direction of the reciprocating screw, the reciprocating screw can rotate along the opposite direction of the first rotation direction and drive the movable stop block and the limiting rod to revolve along the axis of the reciprocating screw, and the movable stop block is provided with a pressing end; a kind of electronic device with high-pressure air-conditioning system
The output assembly comprises a travel rod fixedly arranged at a first preset position and a mounting piece in sliding fit with the travel rod, the mounting piece can move back and forth along the length direction of the travel rod, and the pressing end of the movable stop block can be selectively pressed and matched with the corresponding mounting piece so as to drive the mounting piece to move back and forth along the length direction of the travel rod.
2. The device for controlling the electrical downtilt of an antenna according to claim 1, wherein the mounting member is provided with a mounting portion for connecting the phase shifter driving member and a pressing protrusion for press-fitting with the pressing end, the mounting portion is staggered from the pressing protrusion, and the pressing protrusion is disposed close to the reciprocating screw.
3. The device for controlling the electrical downtilt of an antenna according to claim 1, wherein the travel bar is provided with a limiting rack arranged along a length direction thereof, and the mounting member is provided with a limiting structure which is in press fit with limiting teeth of the limiting rack.
4. The device for controlling the electrical downtilt of the antenna according to claim 3, wherein the mounting member is provided with a fitting hole in socket fit with the travel bar, the limit structure comprises a rolling body capable of elastically resetting and arranged on the inner wall of the fitting hole, and the rolling body is in extrusion fit with the limit teeth of the limit rack.
5. The antenna electrical downtilt control device of any of claims 1-4, further comprising a mounting assembly comprising a first mounting plate and a second mounting plate disposed in spaced apart relation; the reciprocating screw, the limiting rod and the movable stop block can be arranged between the first mounting plate and the second mounting plate, and the travel rod is fixedly arranged between the first mounting plate and the second mounting plate.
6. The device for controlling an electrical downtilt of an antenna according to claim 5, wherein the input assembly further comprises a positioning stopper, the positioning stopper is provided with a first connecting hole fixedly connected with the limiting rod and a second connecting hole fixedly connected with one end of the reciprocating screw, the first connecting hole and the second connecting hole are arranged at intervals, and one end of the reciprocating screw penetrates through the second connecting hole and is rotatably connected with the second mounting plate.
7. The device of claim 6, wherein the second mounting plate is provided with a recess for receiving the positioning block, and the output assembly is disposed outside the recess.
8. The device for controlling an electrical downtilt of an antenna according to claim 5, further comprising a first unidirectional assembly, wherein the first unidirectional assembly comprises a first rotating member capable of unidirectional rotation along a first rotation direction and a second rotating member for limiting unidirectional rotation of the first rotating member, the first rotating member is fixedly connected with the reciprocating screw in a transmission manner, the second rotating member can only rotate along a direction opposite to the first rotation direction and is arranged on the first mounting plate, and the limiting rod can rotate along with the second rotating member.
9. The device for controlling an electrical downtilt of an antenna according to claim 8, further comprising a second unidirectional assembly, wherein the second unidirectional assembly is provided with a third rotating member fixedly connected to the second rotating member, one end of the limiting rod is fixedly connected to the third rotating member, and the third rotating member can rotate only in a direction opposite to the first rotating direction and is disposed on the first mounting plate.
10. The antenna electrical downtilt control device of claim 9, wherein the first unidirectional component is a first unidirectional bearing, the first rotating member is an inner race of the first unidirectional bearing, and the second rotating member is an outer race of the first unidirectional bearing;
the third rotating piece is provided with a one-way convex tooth, the second one-way assembly further comprises a fixed disc which can be elastically reset and is arranged on the first mounting plate, and the fixed disc is provided with a one-way concave tooth which is in limit fit with the one-way convex tooth;
or the second unidirectional component is a second unidirectional bearing, the third rotating piece is an inner ring of the second unidirectional bearing, and the second unidirectional component further comprises an outer ring used for limiting unidirectional rotation of the third rotating piece.
11. The device for controlling the electrical downtilt of an antenna according to claim 9, wherein the third rotary member is provided with a marking rod, the first mounting plate is provided with an annular groove for accommodating the marking rod, and the annular groove is provided with a detection notch.
12. The device for controlling an electrical downtilt of an antenna according to claim 5, further comprising a fourth rotating member fixedly connected to one end of the stopper rod, the fourth rotating member rotatable only in a direction opposite to the first rotation direction, and one end of the fourth rotating member being disposed on the outer wall of the first mounting plate and provided with a connection end connected to the rotation output end of the second power device.
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| CN201711485027.4A CN108321537B (en) | 2017-12-29 | 2017-12-29 | Antenna electric downtilt angle control device |
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| DE102011009600B3 (en) * | 2011-01-27 | 2012-03-15 | Kathrein-Werke Kg | Mobile radio antenna with multi-beam shaping device |
| CN205911442U (en) * | 2016-06-28 | 2017-01-25 | 广东通宇通讯股份有限公司 | Electrically -controlled antenna and phase shift transmission device |
| CN106785438A (en) * | 2017-01-26 | 2017-05-31 | 京信通信系统（中国）有限公司 | The control system of transmission device and Downtilt |
| CN207994073U (en) * | 2017-12-29 | 2018-10-19 | 京信通信系统（中国）有限公司 | The control device of antenna lower decline angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011009600B3 (en) * | 2011-01-27 | 2012-03-15 | Kathrein-Werke Kg | Mobile radio antenna with multi-beam shaping device |
| CN205911442U (en) * | 2016-06-28 | 2017-01-25 | 广东通宇通讯股份有限公司 | Electrically -controlled antenna and phase shift transmission device |
| CN106785438A (en) * | 2017-01-26 | 2017-05-31 | 京信通信系统（中国）有限公司 | The control system of transmission device and Downtilt |
| CN207994073U (en) * | 2017-12-29 | 2018-10-19 | 京信通信系统（中国）有限公司 | The control device of antenna lower decline angle |
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