CN109768391B - Antenna, antenna electric downtilt display system and transmission mechanism thereof - Google Patents
Antenna, antenna electric downtilt display system and transmission mechanism thereof Download PDFInfo
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- CN109768391B CN109768391B CN201811643034.7A CN201811643034A CN109768391B CN 109768391 B CN109768391 B CN 109768391B CN 201811643034 A CN201811643034 A CN 201811643034A CN 109768391 B CN109768391 B CN 109768391B
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Abstract
The invention discloses an antenna, a display system of antenna electrical downtilt and a transmission mechanism thereof, wherein the transmission mechanism comprises: the first transmission assembly comprises a first screw and a first transmission piece in spiral transmission fit with the first screw, and the first transmission piece is provided with a first connecting part and a second connecting part; and the second transmission component comprises a second screw rod, a third screw rod fixedly connected with the second screw rod in a transmission manner, a second transmission member in spiral transmission fit with the second screw rod, and a third transmission member in transmission fit with the third screw rod, the screw thread turning direction of the second screw rod is the same as that of the first screw rod and is opposite to that of the third screw rod, the second transmission member is provided with a third connecting part, and the third transmission member is provided with a fourth connecting part. The transmission mechanism can ensure that the scale display sequences of the scales corresponding to the two phase shifters are the same; the display system adopts the transmission mechanism; the antenna adopts the display system.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an antenna, a display system of an antenna electrical downtilt angle and a transmission mechanism thereof.
Background
In the antenna phase shifter, the straight drawing type phase shifter is widely applied, the phase shifting dielectric plate is completely pushed into the cavity of the phase shifter to be the minimum electrical downtilt angle of the phase shifter, and the phase shifting dielectric plate is completely drawn to be the maximum electrical downtilt angle of the phase shifter, generally speaking, the design scheme can be unified.
However, in order to meet different design requirements, a phase shifter scheme opposite to the above scheme is used in some cases, that is, the phase-shifting dielectric plate is completely pushed into the phase shifter cavity to be the maximum electrical downtilt angle of the phase shifter, and the phase-shifting dielectric plate is completely pulled out to be the minimum electrical downtilt angle of the phase shifter, and at this time, two phase shifter schemes with opposite adjustment orders appear in the same antenna, and there are two different phase shifter schemes. For the scheme of the existing transmission mechanism, the scale display sequence of the two scales is different, so that confusion is easily generated on the control program management and control and the scale display sequence of the antenna appearance scale.
Disclosure of Invention
Based on this, it is necessary to provide an antenna, a display system of an antenna electrical downtilt angle and a transmission mechanism thereof, wherein the transmission mechanism is applied to the antenna with two phase shifters with opposite adjustment sequences, so that the scale display sequences of the scales corresponding to the two phase shifters are the same; the display system of the antenna electrical downtilt angle adopts the transmission mechanism, so that when two phase shifters with opposite adjustment sequences exist at the same time, the same steering is output by the same program through the driving mechanism, the display sequences of the scales of the two scales are the same, and the electrical downtilt angle change sequences of the phase shifters are the same; the antenna adopts the display system, so that the scale display is more reasonable, and related personnel can conveniently count.
The technical scheme is as follows:
in one aspect, the present application provides a transmission mechanism comprising: the first transmission assembly comprises a first screw rod which is rotatably arranged on the bottom plate and a first transmission piece which is in spiral transmission fit with the first screw rod, and the first transmission piece is provided with a first connecting part which is fixedly connected with a medium plate of a phase shifter and a second connecting part which is fixedly connected with a connecting end of a scale; and the second transmission component comprises a second screw rod which is rotatably arranged on the bottom plate, a third screw rod which is fixedly connected with the second screw rod in a transmission manner, a second transmission member which is in spiral transmission fit with the second screw rod, and a third transmission member which is in transmission fit with the third screw rod, the screw thread turning direction of the second screw rod is the same as that of the first screw rod, and is opposite to that of the third screw rod, the second transmission member is provided with a third connecting part which is fixedly connected with the connecting end of another scale, and the third transmission member is provided with a fourth connecting part which is fixedly connected with a medium plate of another phase shifter.
When the transmission mechanism is applied to a display system of an antenna electrical downtilt, the first transmission piece is fixedly connected with the dielectric plate of one phase shifter through the first connecting part and fixedly connected with the corresponding scale through the second connecting part, the third transmission piece is fixedly connected with the dielectric plate of the other phase shifter through the fourth connecting part, and the second transmission piece is fixedly connected with the corresponding other scale through the third connecting part; the thread turning direction of the second screw is the same as that of the first screw and is opposite to that of the third screw, so that the moving directions of the first transmission piece and the second transmission piece are the same, and the moving direction of the second transmission piece is opposite to that of the third transmission piece; when the first screw rod and the second screw rod synchronously rotate in the same direction, the two dielectric plates can be driven to move in opposite directions, so that the two phase shifters can be applied to certain antennas integrating two phase shifters with opposite adjusting sequences, the scales of the two phase shifters are consistent in displaying sequence, and the driving mechanism is convenient to control to output power by adopting the same type of control program.
The technical solution is further explained below:
in one embodiment, the first transmission assembly further includes a first mounting seat and a second mounting seat, the first mounting seat is rotatably connected to one end of the first screw rod, the second mounting seat is rotatably connected to the other end of the first screw rod, and the first screw rod is rotatably disposed on the bottom plate through the first mounting seat and the second mounting seat.
In one embodiment, a transmission body used for being fixedly connected with the output end of the driving mechanism in a transmission manner is arranged at one end of the first screw rod, and the transmission body penetrates out of the first mounting seat.
In one embodiment, the second transmission assembly further includes a third mounting seat and a fourth mounting seat, the third mounting seat is rotatably connected to one end of the second screw, the fourth mounting seat is rotatably connected to the other end of the third screw, and the second screw and the third screw are rotatably disposed on the bottom plate through the third mounting seat and the fourth mounting seat.
In one embodiment, one end of the second screw is provided with a second transmission body which is fixedly connected with the output end of the driving mechanism in a transmission manner, and the second transmission body penetrates through the third mounting seat.
In one embodiment, the second transmission assembly further includes a fifth mounting seat, the other end of the second screw is inserted into one end of the third screw, and one end of the third screw is rotatably connected to the fifth mounting seat.
On the other hand, the application also provides a display system of an antenna electrical downtilt angle, which comprises the transmission mechanism, and further comprises a bottom plate, a first phase shifter, a second phase shifter, a first scale fixedly connected with a second connecting part, and a second scale fixedly connected with a third connecting part, wherein the first phase shifter and the second phase shifter are arranged on the bottom plate at intervals, the first phase shifter is provided with a first dielectric plate, the second phase shifter is provided with a second dielectric plate which is opposite to the first dielectric plate in adjustment sequence, the first dielectric plate is fixedly connected with the first connecting part, and the second dielectric plate is fixedly connected with the fourth connecting part; when the first screw and the second screw synchronously rotate in the same direction, the moving directions of the first medium plate and the second medium plate are opposite.
When the display system is used, the first transmission piece is fixedly connected with the dielectric plate of one phase shifter through the first connecting part and fixedly connected with the corresponding scale through the second connecting part, the third transmission piece is fixedly connected with the dielectric plate of the other phase shifter through the fourth connecting part, and the second transmission piece is fixedly connected with the corresponding other scale through the third connecting part; because the screw thread turning direction of the second screw is the same as that of the first screw and is opposite to that of the third screw, when the first screw and the second screw synchronously rotate in the same direction, the two dielectric plates can be driven to move in opposite directions, so that the two phase shifters can be applied to certain antennas integrating two phase shifters with opposite adjusting sequences, the scale display sequences of the two phase shifters are consistent, and the driving mechanism can be controlled to output power by adopting the same type of control program. The display system of the antenna electric downtilt angle adopts the transmission mechanism, so that when two phase shifters with opposite adjusting sequences exist at the same time, the same steering is output by the same program through the driving mechanism, the display sequences of the scales of the two scales are the same, and the phase shifters have the same electric downtilt angle change sequence.
The technical solution is further explained below:
in one embodiment, the display system further includes a first guide and a second guide, the first scale is slidably disposed on the bottom plate through the first guide, a sliding direction of the first scale is parallel to an axis of the first screw, the second scale is slidably disposed on the bottom plate through the second guide, and a sliding direction of the second scale is parallel to an axis of the second screw.
In one embodiment, the display system further comprises a controller and a driving mechanism, wherein the controller is in communication connection with the driving mechanism, and the driving mechanism is used for driving the first screw rod and the second screw rod to synchronously rotate in the same direction.
In still another aspect, the present application further provides an antenna including the display system described above. The antenna adopts the display system, so that the scale display is more reasonable, and related personnel can conveniently count.
Drawings
FIG. 1 is a schematic diagram of a display system with an antenna electrically tilted down in one embodiment;
FIG. 2 is an enlarged schematic view of the transmission of FIG. 1;
fig. 3 is a schematic structural diagram of a display system with an antenna electrically tilted down in an embodiment.
Description of reference numerals:
10. the transmission mechanism 100, the first transmission assembly 110, the first screw rod 112, the first transmission body 120, the first transmission body 130, the first mounting seat 140, the second mounting seat 200, the second transmission assembly 210, the second screw rod 212, the second transmission body 220, the third screw rod 230, the second transmission body 240, the third transmission body 250, the third mounting seat 260, the fourth mounting seat 270, the fifth mounting seat 20, the bottom plate 30, the first phase shifter 32, the first dielectric plate 34, the first connecting member 40, the second phase shifter 42, the second dielectric plate 44, the second connecting member 50, the first scale 60, the second scale 70, the first guide member 80, the second guide member 90, and the driving mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is "fixedly connected" to another element, it can be fixed by any fixing means known in the art, such as screwing, snap-fastening, welding, riveting, etc. When an element is "threadingly engaged" with another element, it is meant that rotational motion of one element may be translated into linear motion of the other element. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
References to "first" and "second" in this disclosure do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 to 3, in an embodiment, the transmission mechanism 10 includes: the first transmission assembly 100, the first transmission assembly 100 includes a first screw 110 rotatably disposed on the bottom plate 20, and a first transmission member 120 in screw-driving fit with the first screw 110, the first transmission member 120 is provided with a first connecting portion for fixedly connecting with a dielectric plate of a phase shifter, and a second connecting portion for fixedly connecting with a connecting end of a scale; and a second transmission assembly 200, the second transmission assembly 200 includes a second screw rod 210 rotatably disposed on the bottom plate 20, a third screw rod 220 fixedly connected with the second screw rod 210 in a transmission manner, a second transmission member 230 spirally engaged with the second screw rod 210 in a transmission manner, and a third transmission member 240 engaged with the third screw rod 220 in a transmission manner, a thread turning direction of the second screw rod 210 is the same as that of the first screw rod 110, but is opposite to that of the third screw rod 220, the second transmission member 230 is provided with a third connection portion fixedly connected with a connection end of another scale, and the third transmission member 240 is provided with a fourth connection portion fixedly connected with a dielectric plate of another phase shifter.
As shown in fig. 1 to 3, when the transmission mechanism 10 is applied to a display system of an antenna electrical downtilt, the first transmission member 120 is fixedly connected to the dielectric plate of one phase shifter through the first connection portion and is fixedly connected to the corresponding scale through the second connection portion, the third transmission member 240 is fixedly connected to the dielectric plate of another phase shifter through the fourth connection portion, and the second transmission member 230 is fixedly connected to the corresponding other scale through the third connection portion; since the thread direction of the second screw 210 is the same as the thread direction of the first screw 110 and opposite to the thread direction of the third screw 220, the moving directions of the first transmission member 120 and the second transmission member 230 are the same, and the moving direction of the second transmission member 230 is opposite to the moving direction of the third transmission member 240; when the first screw 110 and the second screw 210 rotate synchronously in the same direction, the two dielectric plates can be driven to move in opposite directions, so that the two phase shifters can be applied to two phase shifters with opposite adjustment sequences integrated in some antennas, the scale display sequences of the two phase shifters are consistent, and the driving mechanism 90 can be controlled to output power by the same type of control program.
On the basis of the above embodiments, in an embodiment, the first transmission assembly 100 further includes a first mounting seat 130 and a second mounting seat 140, the first mounting seat 130 is rotatably connected to one end of the first screw 110, the second mounting seat 140 is rotatably connected to the other end of the first screw 110, and the first screw 110 is rotatably disposed on the bottom plate 20 through the first mounting seat 130 and the second mounting seat 140. Thus, the first mounting seat 130 and the second mounting seat 140 can make the mounting of the first screw 110 more flexible; the first screw rod 110, the first mounting seat 130 and the second screw rod can be firstly mounted, and after the first screw rod 110, the first mounting seat 130 and the second screw rod 140 are mounted and debugged, the whole screw rod is integrally mounted at the preset position on the bottom plate 20, so that modular assembly can be carried out, and the mounting efficiency and the mounting precision are further improved.
Further, in an embodiment, a transmission body for fixedly transmitting and connecting with the output end of the driving mechanism 90 is disposed at one end of the first screw 110, and the transmission body is disposed to penetrate through the first mounting seat 130. So that the transmission body is fixedly connected with the output end of the driving mechanism 90 in a transmission way.
In addition to any of the above embodiments, in an embodiment, the second transmission assembly 200 further includes a third mounting seat 250 and a fourth mounting seat 260, the third mounting seat 250 is rotatably connected to one end of the second screw 210, the fourth mounting seat 260 is rotatably connected to the other end of the third screw 220, and the second screw 210 and the third screw 220 are rotatably disposed on the bottom plate 20 through the third mounting seat 250 and the fourth mounting seat 260. Similarly, the third and fourth mounting seats 250 and 260 can make the mounting of the second screw 210 more flexible; after the second screw 210, the third mounting seat 250 and the fourth mounting seat 260 are installed and debugged, the whole body is installed at the preset position on the bottom plate 20, so that the modular assembly can be performed, and the installation efficiency and the installation precision are further improved.
In addition, the third mounting seat 250 and the first mounting seat 130 can be integrally formed, so that the first transmission assembly 100 and the second transmission assembly 200 can be integrated into one mounting seat.
Further, one end of the second screw 210 is provided with a second transmission body 212 for fixedly driving connection with the output end of the driving mechanism 90, and the second transmission body 212 is disposed through the third mounting seat 250. So that the transmission body is fixedly connected with the output end of the driving mechanism 90 in a transmission way.
In addition to any of the above embodiments, in an embodiment, the second transmission assembly 200 further includes a fifth mounting seat 270, the other end of the second screw 210 is inserted into one end of the third screw 220, and one end of the third screw 220 is rotatably connected to the fifth mounting seat 270. Thus, the fifth mounting seat 270 is utilized to realize the integrated mounting of the second screw 210 and the third screw 220, and the fifth mounting seat 270 is arranged to be matched with the third mounting seat 250 and the fourth mounting seat 260, so that the transmission precision of the second screw 210 and the third screw 220 is higher, and the transmission is more stable.
The fixed transmission connection manner of the second screw 210 and the third screw 220 can also be formed by adopting an integral forming technology, such as injection molding or processing the second screw 210 and the third screw 220 between cylinders.
As shown in fig. 1 to 3, the display system of the antenna electrical downtilt angle includes the above-mentioned transmission mechanism 10, and further includes a bottom plate 20, a first phase shifter 30, a second phase shifter 40, a first scale 50 fixedly connected to a second connection portion, and a second scale 60 fixedly connected to a fourth connection portion, wherein the first phase shifter 30 and the second phase shifter 40 are disposed on the bottom plate 20 at intervals, the first phase shifter 30 is provided with a first dielectric plate 32, the second phase shifter 40 is provided with a second dielectric plate 42 having an adjustment sequence opposite to that of the first dielectric plate 32, the first dielectric plate 32 is fixedly connected to the first connection portion, and the second dielectric plate 42 is fixedly connected to the third connection portion; when the first screw 110 and the second screw 210 rotate synchronously in the same direction, the moving directions of the first medium plate 32 and the second medium plate 42 are opposite.
When the display system is used, the first transmission piece 120 is fixedly connected with the medium plate of one phase shifter through the first connecting part and fixedly connected with the corresponding scale through the second connecting part, the third transmission piece 240 is fixedly connected with the medium plate of another phase shifter through the fourth connecting part, and the second transmission piece 230 is fixedly connected with the corresponding other scale through the third connecting part; because the thread turning direction of the second screw rod 210 is the same as that of the first screw rod 110 and is opposite to that of the third screw rod 220, when the first screw rod 110 and the second screw rod 210 synchronously rotate in the same direction, the two dielectric plates can be driven to move in opposite directions, so that the two phase shifters can be applied to two phase shifters with opposite adjustment sequences integrated in certain antennas, the scale display sequences of the two phase shifters are consistent, and the driving mechanism 90 can be controlled to output power by adopting the same type of control program. If the scale of the first scale 50 and the scale of the second scale 60 are both zero, the distance that the first dielectric plate 32 extends is zero, and the distance that the second dielectric plate 42 extends is the maximum, at this time, the electrical downtilt angles of the first phase shifter 30 and the second phase shifter 40 are both zero; by applying the transmission mechanism 10, the first scale 50 and the second scale 60 move in the same direction, and the electric downtilt is displayed to be consistent in size and direction, that is, when the same rotating power is output, the electric downtilt and scale of the phase shifter are gradually increased or decreased, so that the programming of a control program is facilitated, and a logic error is not easy to occur. The display system of the antenna electrical downtilt angle adopts the transmission mechanism 10, so that when two phase shifters with opposite adjusting sequences exist at the same time, the same steering is output by the same program through the driving mechanism 90, the display sequences of the scales of the two scales are the same, and the electrical downtilt angle change sequences of the phase shifters are the same.
On the basis of the above embodiment, in an embodiment, the display system further includes a first guide 70 and a second guide 80, the first scale 50 is slidably disposed on the bottom plate 20 through the first guide 70, the sliding direction of the first scale 50 is parallel to the axis of the first screw 110, the second scale 60 is slidably disposed on the bottom plate 20 through the second guide 80, and the sliding direction of the second scale 60 is parallel to the axis of the second screw 210; meanwhile, the moving directions of the first scale 50 and the first transmission piece 120 can be parallel, unnecessary friction caused by moving the inclination angle is avoided, and the first scale 50 and the first transmission piece 120 can move more stably; similarly, the second guide member 80 can prevent the second scale 60 from interfering with other parts, so as to improve the motion stability of the first scale 50 and the first transmission member 120.
Specifically, the number of the first guide members 70 is at least two, and the number of the second guide members 80 is at least two. The first guide 70 is slidably connected to the first scale 50, and the second guide 80 is slidably connected to the second scale 60.
In addition, the first dielectric plate 32 may be fixedly connected to the first connecting portion by a first connecting member 34 (e.g., a tie bar), and the second dielectric plate 42 may be fixedly connected to the third connecting portion by a second connecting member 44 (e.g., a tie bar). The lengths of the first transmission member 120 and the second transmission member 230 can be adjusted according to actual needs, so that the transmission mechanism 10 can be installed more flexibly.
Similarly, the first guide 70 and the second guide 80 may be arranged to make the movement of the corresponding first connecting element 34 and second connecting element 44 more stable and avoid the movement interference.
In addition to any of the above embodiments, in an embodiment, the display system further includes a controller (not shown) and a driving mechanism 90, the controller is communicatively connected to the driving mechanism 90, and the driving mechanism 90 is configured to drive the first screw 110 and the second screw 210 to synchronously rotate in the same direction. Thus, the controller can control the driving mechanism 90 to output power to adjust the electrical downtilt angle of the antenna. The controller can be an existing control element such as a control computer, a motion control card, a PCL controller and the like.
Specifically, as shown in fig. 1, when the output of the driving mechanism 90 rotates clockwise, the first transmission member 120 drives the first scale 50 and the first medium plate 32 to move away from the phase shifter, the relative distance between the first transmission member 120 and the first mounting seat 130 is gradually reduced from L1 to 0, the relative position between the first medium plate 32 and the phase shifter cavity is gradually increased from 0 to L1, the electrical declination angle is gradually increased from the minimum to the maximum, and the display scale of the first scale 50 is also gradually increased from the minimum to the maximum (e.g., from 0 to 14 degrees). Meanwhile, the second transmission piece 230 drives the second scale 60 to move away from the phase shifter, the relative distance between the second transmission piece 230 and the third mounting seat 250 is gradually reduced from L3 to L3-L2, and the display scale of the second scale 60 is gradually changed from the minimum to the maximum (such as 0-10 degrees); the third transmission member 240 drives the second dielectric plate 42 to move toward the direction of inserting into the phase shifter, the relative position between the second dielectric plate 42 and the phase shifter cavity is gradually reduced from L2 to 0, the electrical declination angle is gradually changed from minimum to maximum, and the display scale of the second scale 60 is also gradually changed from minimum to maximum (e.g. 0 degree to 10 degrees).
As shown in fig. 3, when the output of the driving mechanism 90 rotates in a counterclockwise direction, the first transmission member 120 drives the first scale 50 and the first medium plate 32 to move toward the phase shifter, the relative distance between the first transmission member 120 and the first mounting seat 130 is gradually increased from 0 to L1, the relative position between the first medium plate 32 and the phase shifter cavity is gradually decreased from L1 to 0, the electrical declination angle is gradually decreased from maximum to minimum, and the display scale of the first scale 50 is also gradually decreased from maximum to minimum (e.g., 14 degrees to 0 degrees). Meanwhile, the second transmission piece 230 drives the second scale 60 to move towards a position close to the phase shifter, the relative distance between the second transmission piece 230 and the third mounting seat 250 is gradually increased from L3-L2 to L3, and the display scale of the second scale 60 is gradually changed from maximum to minimum (such as 10 degrees to 0 degrees); the third transmission member 240 drives the second dielectric plate 42 to move away from the phase shifter, the relative position between the second dielectric plate 42 and the phase shifter cavity is gradually increased from 0 to L2, the electrical declination angle is gradually changed from maximum to minimum (for example, 10 degrees to 0 degrees), and the display scale of the second scale 60 is also gradually changed from maximum to minimum.
Thus, when two different phase shifters exist in an antenna system at the same time, the driving mechanism 90 outputs the same steering direction by the same program, the display sequence of the scales of the two scales is the same, and the linear motion directions of pulling out or pushing in the dielectric plate of the phase shifter are different, so that the change sequence of the electrical downtilt angle of the phase shifter is the same.
It should be noted that, when one element is "fixedly connected in a transmission manner" to another element, it may be implemented by any transmission connection manner in the prior art, such as threaded connection, snap, welding, riveting, etc., as long as it is implemented that one element drives another element to move (including sliding and rotating).
In still another embodiment, the antenna comprises the display system. The antenna adopts the display system, so that the scale display is more reasonable, and related personnel can conveniently count.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A transmission mechanism, comprising:
the first transmission assembly comprises a first screw rod which is rotatably arranged on the bottom plate and a first transmission piece which is in spiral transmission fit with the first screw rod, and the first transmission piece is provided with a first connecting part which is fixedly connected with a medium plate of a phase shifter and a second connecting part which is fixedly connected with a connecting end of a scale; and
the second transmission component comprises a second screw rod rotatably arranged on the bottom plate, a third screw rod fixedly connected with the second screw rod in a transmission manner, a second transmission member in spiral transmission fit with the second screw rod, and a third transmission member in transmission fit with the third screw rod, the screw thread turning direction of the second screw rod is the same as that of the first screw rod, and is opposite to that of the third screw rod, the second transmission member is provided with a third connecting part fixedly connected with the connecting end of another scale, and the third transmission member is provided with a fourth connecting part fixedly connected with another phase shifter medium plate.
2. The transmission mechanism as claimed in claim 1, wherein the first transmission assembly further comprises a first mounting seat and a second mounting seat, the first mounting seat is rotatably connected to one end of the first screw rod, the second mounting seat is rotatably connected to the other end of the first screw rod, and the first screw rod is rotatably disposed on the bottom plate through the first mounting seat and the second mounting seat.
3. The transmission mechanism according to claim 2, wherein a transmission body for fixedly transmitting and connecting with the output end of the driving mechanism is arranged at one end of the first screw rod, and the transmission body penetrates through the first mounting seat.
4. The transmission mechanism according to claim 1, wherein the second transmission assembly further includes a third mounting seat and a fourth mounting seat, the third mounting seat is rotatably connected to one end of the second screw rod, the fourth mounting seat is rotatably connected to the other end of the third screw rod, and the second screw rod and the third screw rod are rotatably disposed on the bottom plate through the third mounting seat and the fourth mounting seat.
5. The transmission mechanism according to claim 4, wherein one end of the second screw is provided with a second transmission body fixedly connected with the output end of the driving mechanism in a transmission manner, and the second transmission body penetrates through the third mounting seat.
6. The transmission mechanism as claimed in any one of claims 1 to 5, wherein the second transmission assembly further comprises a fifth mounting seat, the other end of the second screw rod is inserted into one end of the third screw rod, and one end of the third screw rod is rotatably connected with the fifth mounting seat.
7. An antenna electrical downtilt display system, comprising the transmission mechanism of any one of claims 1 to 6, further comprising a bottom plate, a first phase shifter, a second phase shifter, a first scale fixedly connected to a second connecting portion, and a second scale fixedly connected to a third connecting portion, wherein the first phase shifter and the second phase shifter are arranged on the bottom plate at intervals, the first phase shifter is provided with a first dielectric plate, the second phase shifter is provided with a second dielectric plate in an order opposite to an adjustment order of the first dielectric plate, the first dielectric plate is fixedly connected to the first connecting portion, and the second dielectric plate is fixedly connected to the fourth connecting portion;
when the first screw and the second screw synchronously rotate in the same direction, the moving directions of the first medium plate and the second medium plate are opposite.
8. The display system according to claim 7, further comprising a first guide member and a second guide member, wherein the first scale is slidably disposed on the base plate via the first guide member, a sliding direction of the first scale is parallel to an axis of the first screw, the second scale is slidably disposed on the base plate via the second guide member, and a sliding direction of the second scale is parallel to an axis of the second screw.
9. The display system according to claim 7 or 8, further comprising a controller and a driving mechanism, wherein the controller is in communication with the driving mechanism, and the driving mechanism is configured to drive the first screw and the second screw to synchronously rotate in the same direction.
10. An antenna comprising a display system as claimed in any one of claims 7 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643034.7A CN109768391B (en) | 2018-12-29 | 2018-12-29 | Antenna, antenna electric downtilt display system and transmission mechanism thereof |
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|---|---|---|---|
| CN201811643034.7A CN109768391B (en) | 2018-12-29 | 2018-12-29 | Antenna, antenna electric downtilt display system and transmission mechanism thereof |
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| CN109768391A CN109768391A (en) | 2019-05-17 |
| CN109768391B true CN109768391B (en) | 2020-12-15 |
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| CN111129772A (en) * | 2019-12-19 | 2020-05-08 | 京信通信技术(广州)有限公司 | Antenna transmission device and antenna |
| CN112736464B (en) * | 2020-12-30 | 2024-08-13 | 京信通信技术(广州)有限公司 | Base station antenna and transmission device |
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Inventor after: Guan Dingjin Inventor after: Xu Huijun Inventor after: Xiao Fei Inventor after: Huang Weiqing Inventor after: Liu Yongjun Inventor before: Guan Dingjin Inventor before: Xiao Fei Inventor before: Huang Weiqing Inventor before: Liu Yongjun |
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