Antenna downward inclination angle adjusting device

Abstract

The utility model discloses a downward inclination angle adjusting device for an antenna. The downward inclination angle adjusting device comprises a mechanical gear shifting assembly, an adjusting assembly and at least two electric adjusting assemblies, the gear shifting assembly comprises a gear shifting rod, a connecting piece and a gear shifting wheel. The adjusting assembly comprises a driving rod and a driving wheel. The driving rod and the gear shifting rod are arranged in parallel, the driving wheel is slidably arranged on the driving rod in a sleeving mode, the driving wheel is rotatably connected to one end of the connecting piece, the gear shifting rod is movably sleeved with the other end of the connecting piece, and the gear shifting wheel is rotatably arranged on the connecting piece in a sleeving mode and meshed with the driving wheel; the electric speed control assembly comprises an electric speed control wheel and a screw rod, the screw rod is in transmission connection with the electric speed control wheel, and the electric speed control wheel is meshed with the gear shifting wheel; the connecting piece arranged on the gear shifting rod in a sleeving mode moves in the axial direction of the gear shifting rod to drive the gear shifting wheel and the driving wheel which are meshed all the time so that the gear shifting wheel can be meshed with any electric speed control wheel to achieve gear shifting. According to the antenna downward inclination angle adjusting device, a complicated transmission structure and an adjusting structure are simplified, and the production and manufacturing cost of the antenna downward inclination angle adjusting device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile communication base station antennas, in particular to a downtilt angle adjusting device for an antenna. Background Art

[0002] In a mobile communication system, in order to optimize the wireless signals covering a service area and suppress the mutual interference of co-frequency signals, it is necessary to reasonably adjust the downtilt angle of a base station communication antenna.

[0003] Most of the current downtilt angle adjusting devices for antennas on the market are such that one motor drives one phase shifter. In the trend of multi-band and miniaturization of base station antennas, the control mode of one motor driving one phase shifter can no longer meet the development needs of antennas. There is an urgent need for a downtilt angle adjusting device for an antenna that can meet the requirements of multi-band antennas, has a smaller volume, and lower costs. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a downtilt angle adjusting device for an antenna that can meet the requirements of multi-band antennas, has a smaller volume, and lower costs.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a downtilt angle adjusting device for an antenna, comprising a frame and a gear shifting assembly, an adjusting assembly, two driving assemblies, and at least two electronic tuning assemblies mounted on the frame; the gear shifting assembly includes a gear shifting rod, a connecting member, and a gear shifting wheel, and the adjusting assembly includes a driving rod and a driving wheel;

[0006] The driving rod is arranged in parallel with the gear shifting rod, the driving wheel is slidably sleeved on the driving rod, the driving wheel is rotatably connected to one end of the connecting member, the other end of the connecting member is movably sleeved on the gear shifting rod, and the gear shifting wheel is rotatably sleeved on the connecting member and meshes with the driving wheel;

[0007] Each of the electronic tuning assemblies includes an electronic tuning wheel and a screw rod, the screw rod is in transmission connection with the electronic tuning wheel, and the electronic tuning wheel meshes with the gear shifting wheel;

[0008] The connecting member sleeved on the gear shifting rod moves axially on the gear shifting rod, driving the always-meshing gear shifting wheel and driving wheel to make the gear shifting wheel mesh with any one of the electronic tuning wheels to achieve gear shifting;

[0009] Each of the driving assemblies includes a driving member, a driving bevel gear, and a driven bevel gear, the driving member is in transmission connection with the driving bevel gear, and the driven bevel gear meshes with the driving bevel gear; the driven bevel gears of the two driving assemblies are respectively fixedly installed on the gear shifting rod and the driving rod.

[0010] Further, the frame includes a detachably connected housing and a cover plate. The shifting assembly, the adjusting assembly, the electric tuning wheel, the driving bevel gear, and the driven bevel gear are all arranged inside the housing. Observation windows are provided on the cover plate corresponding to the driving bevel gear, the driven bevel gear, and the shifting lever.

[0011] Further, positioning bumps and positioning holes adapted to the positioning bumps are respectively provided on the housing and the cover plate.

[0012] Further, a plurality of mounting holes are provided on the frame, and at least one of the mounting holes is oblong.

[0013] Further, a first thread is provided on the outer wall of the shifting lever, and a second thread adapted to the first thread is provided on the inner wall of the other end of the connecting member.

[0014] Further, the driving rod is a prism, and the inner wall of the driving wheel fits against the outer wall of the driving rod.

[0015] Further, the electric tuning assembly further includes an electric tuning member, which is sleeved on the screw rod and is movably arranged along the screw rod.

[0016] Further, the electric tuning member includes a fixedly connected sleeve and a positioning block. The sleeve is sleeved on the screw rod, and a thread adapted to the screw rod is provided on the inner wall of the sleeve. A positioning groove is provided on the frame along the axial direction of the screw rod, and the positioning block is slidably engaged with the positioning groove.

[0017] Further, the axial direction of the screw rod is perpendicular to the axial direction of the shifting lever.

[0018] Further, the number of the electric tuning wheels is multiple, and the multiple electric tuning wheels are arranged in two upper and lower rows, and the electric tuning wheels in the upper row and the electric tuning wheels in the lower row are staggered.

[0019] The beneficial effects of the present utility model are as follows: The connecting member sleeved on the shifting lever moves in the axial direction of the shifting lever, driving the always-engaged shifting wheel and driving wheel, so that the shifting wheel is engaged with any one of the electric tuning wheels to achieve shifting. This antenna downtilt angle adjusting device uses the shifting assembly to transmit power to different electric tuning members to achieve shifting, simplifies the complex and cumbersome transmission structure and adjusting structure, and is beneficial to reducing the production and manufacturing cost of the antenna downtilt angle adjusting device. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the antenna downtilt angle adjusting device according to Embodiment 1 of the present utility model;

[0021] Figure 2 is Figure 1 the enlarged detail view of part A in

[0022] Figure 3 This is a schematic structural diagram of the electric adjustment component in the antenna downtilt angle adjustment device according to the first embodiment of the present utility model;

[0023] Figure 4 This is a partial structural top view of the antenna downtilt angle adjustment device according to the first embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the shifting component and the adjustment component in the antenna downtilt angle adjustment device according to the first embodiment of the present utility model.

[0025] Reference numeral description:

[0026] 1. Frame; 11. Housing; 111. Positioning bump; 12. Cover plate; 121. Observation window; 122. Positioning hole; 13. Mounting hole; 14. Positioning groove;

[0027] 2. Shifting component; 21. Shifting lever; 22. Connecting piece; 23. Shifting wheel;

[0028] 3. Adjustment component; 31. Driving rod; 32. Driving wheel;

[0029] 4. Driving component; 41. Driving piece; 42. Driving bevel gear; 43. Driven bevel gear;

[0030] 5. Electric adjustment component; 51. Electric adjustment wheel; 52. Screw rod; 53. Electric adjustment piece; 531. Sleeve; 532. Positioning block; 54. Transmission bevel gear. Specific implementation manner

[0031] To describe in detail the technical content, the achieved purpose and the effects of the present utility model, the following is described in conjunction with the implementation manners and with reference to the accompanying drawings.

[0032] Please refer to Figures 1 to 5 , an antenna downtilt angle adjustment device, including a frame 1 and a shifting component 2, an adjustment component 3, two driving components 4 and at least two electric adjustment components 5 mounted on the frame 1; the shifting component 2 includes a shifting lever 21, a connecting piece 22 and a shifting wheel 23, and the adjustment component 3 includes a driving rod 31 and a driving wheel 32;

[0033] The driving rod 31 is arranged parallel to the shifting lever 21, the driving wheel 32 is slidably sleeved on the driving rod 31, the driving wheel 32 is rotatably connected to one end of the connecting piece 22, the other end of the connecting piece 22 is movably sleeved on the shifting lever 21, and the shifting wheel 23 is rotatably sleeved on the connecting piece 22 and meshes with the driving wheel 32;

[0034] The electronic adjustment component 5 respectively includes an electronic adjustment wheel 51 and a screw rod 52. The screw rod 52 is in transmission connection with the electronic adjustment wheel 51, and the electronic adjustment wheel 51 is meshed with the shift wheel 23.

[0035] The connecting piece 22 sleeved on the shift lever 21 moves axially on the shift lever 21, driving the always-engaged shift wheel 23 and driving wheel 32, so that the shift wheel 23 is meshed with any one of the electronic adjustment wheels 51 to achieve shifting.

[0036] The driving component 4 includes a driving piece 41, a driving bevel gear 42 and a driven bevel gear 43. The driving piece 41 is in transmission connection with the driving bevel gear 42, and the driven bevel gear 43 is meshed with the driving bevel gear 42. The driven bevel gears 43 of the two driving components 4 are respectively fixedly installed on the shift lever 21 and the driving rod 31.

[0037] As can be seen from the above description, the beneficial effect of the present utility model is that: the connecting piece 22 sleeved on the shift lever 21 moves axially on the shift lever 21, driving the always-engaged shift wheel 23 and driving wheel 32, so that the shift wheel 23 is meshed with any one of the electronic adjustment wheels 51 to achieve shifting. This antenna downtilt angle adjustment device uses the shifting component 2 to transmit power to different electronic adjustment components 53 to achieve shifting, simplifies the complex and cumbersome transmission structure and adjustment structure, and is beneficial to reducing the production and manufacturing cost of the antenna downtilt angle adjustment device.

[0038] Further, the frame 1 includes a detachably connected housing 11 and a cover plate 12. The shifting component 2, the adjusting component 3, the electronic adjustment wheel 51, the driving bevel gear 42 and the driven bevel gear 43 are all arranged in the housing 11. Observation windows 121 are provided on the cover plate 12 corresponding to the driving bevel gear 42, the driven bevel gear 43 and the shift lever 21.

[0039] As can be seen from the above description, the observation windows 121 provided on the cover plate 12 facilitate the staff to observe the working states of the driving bevel gear 42, the driven bevel gear 43 and the shift wheel 23, and also facilitate the staff to inject lubricating oil into the housing 11 without disassembling the cover plate 12.

[0040] Further, positioning convex blocks 111 are respectively provided on the housing 11 and the cover plate 12, and positioning holes 122 matching the positioning convex blocks 111 are provided.

[0041] As can be seen from the above description, the cooperation of the positioning convex blocks 111 and the positioning holes 122 can limit the relative positional relationship between the cover plate 12 and the housing 11, and facilitate the staff to connect and fix the cover plate 12 and the housing 11.

[0042] Further, a plurality of mounting holes 13 are provided on the frame 1, and at least one of the mounting holes 13 is oblong.

[0043] As can be seen from the above description, using the oblong mounting hole 13 is beneficial to flexibly set the position of the support member of the antenna downtilt angle adjustment device of the present invention. There is no need to set an additional large sheet metal support member, which is beneficial to reducing the quantity of materials used when the antenna downtilt angle adjustment device of the present invention is connected to the antenna. It can also make the support member avoid the welding points of the antenna, facilitating the reduction of the solder volume during the backside debugging and repair of the antenna.

[0044] Further, a first thread is provided on the outer wall of the shift lever 21, and a second thread adapted to the first thread is provided on the inner wall of the other end of the connecting member 22.

[0045] As can be seen from the above description, the shift lever 21 and the connecting member 22 are in threaded transmission cooperation, and the transmission is more efficient.

[0046] Further, the driving rod 31 is a prism, and the inner wall of the driving wheel 32 fits against the outer wall of the driving rod 31.

[0047] As can be seen from the above description, the prism-shaped driving rod 31 can effectively prevent the driving wheel 32 from loosening when cooperating with the driving wheel 32.

[0048] Further, the electronic tuning component 5 further includes an electronic tuning member 53, and the electronic tuning member 53 is sleeved on the screw rod 52 and is movably arranged along the screw rod 52.

[0049] As can be seen from the above description, the shift component 2 and the driving component 4 can freely adjust the position of the electronic tuning member 53 in the axial direction of the screw rod 52, and the electronic tuning member 53 can be connected to external devices to cope with different working tasks.

[0050] Further, the electronic tuning member 53 includes a fixedly connected sleeve 531 and a positioning block 532. The sleeve 531 is sleeved on the screw rod 52, a thread adapted to the screw rod 52 is provided on the inner wall of the sleeve 531, a positioning groove 14 is provided on the frame 1 along the axial direction of the screw rod 52, and the positioning block 532 is in sliding fit with the positioning groove 14.

[0051] As can be seen from the above description, the screw rod 52 drives the positioning block 532, and linear reciprocating motion can be realized under the limitation of the positioning groove 14.

[0052] Further, the axial direction of the screw rod 52 is perpendicular to the axial direction of the shift lever 21.

[0053] As can be seen from the above description, the overall length of the antenna downtilt angle adjustment device of the present invention is relatively small, which is convenient for transportation and installation.

[0054] Further, the number of the electric adjustment wheels 51 is multiple, and the multiple electric adjustment wheels 51 are arranged in two upper and lower rows, and the electric adjustment wheels 51 in the upper row and the electric adjustment wheels 51 in the lower row are arranged staggeredly.

[0055] As can be seen from the above description, multiple electric adjustment wheels 51 correspond to multiple different gears, which can handle more complex actual problems.

[0056] Please refer to Figures 1 to 5 , Embodiment 1 of the present invention is: an antenna downtilt angle adjustment device, including a frame 1 and a shift component 2, an adjustment component 3, two drive components 4 and at least two electric adjustment components 5 installed on the frame 1; the shift component 2 includes a shift lever 21, a connecting piece 22 and a shift wheel 23, and the adjustment component 3 includes a drive lever 31 and a drive wheel 32;

[0057] The drive lever 31 is arranged in parallel with the shift lever 21, the drive wheel 32 is slidably sleeved on the drive lever 31, the drive wheel 32 is rotatably connected to one end of the connecting piece 22, the other end of the connecting piece 22 is movably sleeved on the shift lever 21, and the shift wheel 23 is rotatably sleeved on the connecting piece 22 and meshes with the drive wheel 32;

[0058] The electric adjustment components 5 respectively include an electric adjustment wheel 51 and a screw rod 52, the screw rod 52 is in transmission connection with the electric adjustment wheel 51, and the electric adjustment wheel 51 meshes with the shift wheel 23;

[0059] The connecting piece 22 sleeved on the shift lever 21 moves axially on the shift lever 21, driving the always-meshing shift wheel 23 and drive wheel 32 to make the shift wheel 23 mesh with any one of the electric adjustment wheels 51 to achieve shifting;

[0060] The drive components 4 include a drive member 41, a driving bevel gear 42 and a driven bevel gear 43, the drive member 41 is in transmission connection with the driving bevel gear 42, and the driven bevel gear 43 meshes with the driving bevel gear 42; the driven bevel gears 43 of the two drive components 4 are respectively fixedly installed on the shift lever 21 and the drive lever 31.

[0061] Specifically, as Figure 5 shown, the drive lever 31 is a prism, and the inner wall of the drive wheel 32 fits against the outer wall of the drive lever 31. Both the drive wheel 32 and the shift wheel 23 are spur gears. The shift lever 21 is a lead screw, and a first thread is provided on the outer wall of the shift lever 21, and a second thread adapted to the first thread is provided on the inner wall of the other end of the connecting piece 22. It is easy to understand that when the shift lever 21 rotates, through the cooperation of the first thread and the second thread, and the connecting piece 22 is connected to the parallel shift lever 21 and drive lever 31, the connecting piece 22 can make a reciprocating linear motion axially on the shift lever 21. As Figure 4As shown in the figure, the axial direction of the screw 52 is perpendicular to the axial direction of the shift lever 21. The electric adjustment assembly 5 further includes a transmission bevel gear 54, which is fixedly installed on the screw 52. The electric adjustment wheel 51 includes a spur gear portion and a helical gear portion that are coaxially and fixedly connected. The spur gear portion of the electric adjustment wheel 51 is used to mesh with the shift wheel 23, and the helical gear portion of the electric adjustment wheel 51 meshes with the transmission bevel gear 54. The driving member 41 is a motor, or the driving member 41 is in transmission connection with the motor.

[0062] In this embodiment, the number of the electric adjustment wheels 51 is multiple. The multiple electric adjustment wheels 51 are arranged in two rows, upper and lower. The electric adjustment wheels 51 in the upper row and the electric adjustment wheels 51 in the lower row are staggered. The staggered arrangement of the multiple electric adjustment wheels 51 can improve the space utilization rate, reduce the volume of the down-tilt angle adjustment device of this antenna, and meet the development trend of product miniaturization.

[0063] As Figure 2 and Figure 3 shown in the figure, the electric adjustment assembly 5 further includes an electric adjustment member 53. The electric adjustment member 53 is sleeved on the screw 52 and is movably arranged along the screw 52. The electric adjustment members 53 are arranged in one-to-one correspondence with the screws 52. The electric adjustment member 53 includes a sleeve 531 and a positioning block 532 that are fixedly connected. The sleeve 531 is sleeved on the screw 52. Threads adapted to the screw 52 are provided on the inner wall of the sleeve 531. A positioning groove 14 arranged along the axial direction of the screw 52 is provided on the frame 1. The positioning block 532 is in sliding fit with the positioning groove 14.

[0064] As Figure 1 shown in the figure, the frame 1 includes a detachable housing 11 and a cover plate 12. The shift assembly 2, the adjustment assembly 3, the electric adjustment wheels 51, the driving bevel gear 42, and the driven bevel gear 43 are all arranged inside the housing 11. Observation windows 121 are provided on the cover plate 12 corresponding to the driving bevel gear 42, the driven bevel gear 43, and the shift lever 21. Specifically, the housing 11 and the cover plate 12 are connected by screws.

[0065] As Figure 1 shown in the figure, in order to facilitate the connection between the housing 11 and the cover plate 12, positioning bumps 111 and positioning holes 122 that cooperate with the positioning bumps 111 are respectively provided on the housing 11 and the cover plate 12. In this embodiment, the positioning holes 122 are opened on the cover plate 12, and the positioning bumps 111 are provided on the housing 11. In other embodiments, it is also feasible that the positioning holes 122 are provided on the housing 11 and the positioning bumps 111 are provided on the cover plate 12.

[0066] As Figure 1As shown, there are multiple mounting holes 13 provided on the frame 1, and at least one of the mounting holes 13 is oblong. It is easy to understand that using the oblong mounting holes 13 is beneficial for flexibly setting the position of the support member of the antenna downtilt adjustment device, eliminating the need to set up additional large sheet metal support members, which helps reduce the quantity of materials used when the antenna downtilt adjustment device is connected to the antenna. It can also keep the support member away from the welding points of the antenna, facilitating reducing the amount of solder during the debugging and repair of the back of the antenna.

[0067] In summary, the present utility model provides an antenna downtilt adjustment device. By moving the connecting member sleeved on the shift lever axially on the shift lever, the shift wheel and the driving wheel that are always engaged are driven, so that the shift wheel meshes with any one of the electrically adjustable wheels to achieve shifting. This antenna downtilt adjustment device uses the shifting assembly to transfer power to different electrically adjustable components to achieve shifting, simplifying the complex and cumbersome transmission structure and adjustment structure, and being beneficial to reducing the production and manufacturing cost of the antenna downtilt adjustment device.

[0068] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An antenna downtilt angle adjustment device, characterized in that: The invention comprises a frame and a shift assembly, an adjustment assembly, two drive assemblies and at least two electric adjustment assemblies installed on the frame; the shift assembly comprises a shift lever, a connecting piece and a shift wheel, and the adjustment assembly comprises a drive lever and a drive wheel; The driving rod is arranged in parallel with the shift rod, the driving wheel is slidably mounted on the driving rod, the driving wheel is rotatably connected to one end of the connecting member, the other end of the connecting member is movably mounted on the shift rod, and the shift wheel is rotatably mounted on the connecting member and meshed with the driving wheel; The electric adjustment components respectively include an electric adjustment wheel and a screw rod, the screw rod is transmission-connected with the electric adjustment wheel, and the electric adjustment wheel is meshed with the shift wheel; The connecting member sleeved on the shift lever moves in the axial direction of the shift lever, driving the shift wheel and the driving wheel that are always meshed to make the shift wheel mesh with any one of the electric adjustment wheels to achieve shifting; The driving assembly includes a driving member, a driving bevel gear and a driven bevel gear. The driving member is transmission-connected to the driving bevel gear, and the driven bevel gear is meshed with the driving bevel gear. The driven bevel gears of the two driving assemblies are fixedly mounted on the shift rod and the driving rod, respectively.

2. The antenna downtilt angle adjustment device according to claim 1, characterized in that: The frame includes a detachably connected shell and a cover plate, the shift assembly, the adjustment assembly, the electric adjustment wheel, the active bevel gear and the driven bevel gear are all arranged in the shell, and the cover plate is provided with observation windows corresponding to the active bevel gear, the driven bevel gear and the shift lever.

3. The antenna downtilt angle adjustment device according to claim 2, characterized in that: The housing and the cover plate are respectively provided with positioning protrusions and positioning holes matched with the positioning protrusions.

4. The antenna downtilt angle adjustment device according to claim 1, characterized in that: The frame is provided with a plurality of mounting holes, and at least one of the mounting holes is in an oblong shape.

5. The antenna downtilt angle adjustment device according to claim 1, characterized in that: A first thread is arranged on the outer wall of the shift lever, and a second thread matching the first thread is arranged on the inner wall of the other end of the connecting member.

6. The antenna downtilt angle adjustment device according to claim 1, characterized in that: The driving rod is a rhombus, and the inner wall of the driving wheel is in contact with the outer wall of the driving rod.

7. The antenna downtilt angle adjustment device according to claim 1, characterized in that: The electric adjustment component also includes an electric adjustment member, which is sleeved on the screw rod and movably arranged along the screw rod.

8. The antenna downtilt angle adjustment device according to claim 7, characterized in that: The electric adjustment component includes a fixedly connected sleeve and a positioning block, the sleeve is sleeved on the screw, the inner wall of the sleeve is provided with a thread matched with the screw, the frame is provided with a positioning groove arranged along the axial direction of the screw, and the positioning block is slidably matched with the positioning groove.

9. The antenna downtilt angle adjustment device according to claim 1, characterized in that: The axial direction of the screw rod is arranged perpendicular to the axial direction of the shift rod.

10. The antenna downtilt angle adjustment device according to claim 1, characterized in that: There are multiple electrically adjustable wheels, which are arranged in two rows, upper and lower rows, and the electrically adjustable wheels in the upper row are arranged alternately with the electrically adjustable wheels in the lower row.

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