CN112736400A

CN112736400A - Downtilt display device and antenna

Info

Publication number: CN112736400A
Application number: CN202011624986.1A
Authority: CN
Inventors: 周可; 杨仲凯
Original assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-30

Abstract

The invention discloses a downward inclination angle display device and an antenna, wherein the downward inclination angle display device comprises a shell, a dial, a transmission part and a worm, the dial is rotationally arranged on the shell, the dial is provided with first gear teeth, and the first gear teeth are arranged along the periphery of the dial; the driving medium is worm wheel or helical gear with worm transmission connection, and the driving medium is equipped with the second teeth of a cogwheel, and the second teeth of a cogwheel is arranged along the periphery of driving medium, and the second teeth of a cogwheel is connected with the transmission of first teeth of a cogwheel, and the worm can rotate and drive the driving medium and rotate to make the cooperation of the second teeth of a cogwheel and first teeth of a cogwheel drive the calibrated scale and rotate. The shell plays a role in protecting the dial, and is not easy to damage compared with a telescopic straight scale; when the worm rotates, the transmission part is driven to rotate, and the transmission part is in transmission fit with the first gear teeth of the dial through the second gear teeth on the transmission part, so that the rotation of the worm is converted into the rotation of the dial, the effect of adjusting the amplitude of the downward inclination angle is displayed, the transmission precision is higher, and the display precision is further improved.

Description

Downtilt display device and antenna

Technical Field

The invention relates to the technical field of downward inclination angle adjustment of antennas, in particular to a downward inclination angle display device and an antenna.

Background

With the application of the multi-frequency electrically-tunable antenna on the base station becoming more and more extensive, the number of functional modules is increasing, and therefore, the requirement on the accuracy of the antenna electrical downtilt angle adjustment is also increasing. The downtilt display device is a device for displaying the downtilt adjustment range of the antenna. The main stream of downward inclination display devices generally has three types:

the first method comprises the following steps: the display is carried out by adopting a straight scale mode, and the straight scale needs to extend out of the outer side of the antenna housing, so that the straight scale is easily damaged by external force in the mode; meanwhile, the straight scale is exposed in the external environment for a long time, so that the aging of the straight scale is easy to accelerate; in addition, in a severe cold area, the straight scale may be frozen together with the orifice through which the straight scale is extended and retracted due to freezing, so that the scale is locked, and the antenna cannot work normally.

And the second method comprises the following steps: the dial is laid on the end cover of the antenna, and in the display mode, the dial occupies more space of the end cover, and when the multi-frequency antenna is arranged, the space is crowded, and almost no arrangement can be realized when the frequency is greater than 8.

And the third is that: the dial is used for displaying, the dial is arranged perpendicular to the end cover of the antenna, and only the scale position of the dial is displayed, however, when the dial in the mode displays the adjustment of the declination angle, the accuracy is poor, the adjustment range of the declination angle cannot be effectively reflected, the size is large, and the dial is difficult to adapt to the antenna layout with the frequency of more than 8.

Therefore, the conventional downward inclination angle display device has the problems of easy damage, large volume, poor display precision and the like, and cannot meet the high-precision display requirement of downward inclination angle adjustment.

Disclosure of Invention

Accordingly, there is a need for a downtilt display device and an antenna; the downtilt angle display device is not easy to damage, has small volume and high display precision, and can meet the precision requirement of downtilt angle display and the layout requirement of a multi-frequency antenna; the antenna comprises the downward inclination angle display device, and the display precision of downward inclination angle adjustment is high.

The technical scheme is as follows:

one embodiment provides a downtilt display device including:

a housing;

the dial is rotationally arranged on the shell and provided with first gear teeth, and the first gear teeth are arranged along the periphery of the dial; and

the transmission part is a worm wheel or a helical gear, the transmission part rotates and is arranged on the shell, the transmission part is in transmission connection with the worm, the transmission part is provided with second gear teeth, the second gear teeth are arranged along the periphery of the transmission part, the second gear teeth are in transmission connection with the first gear teeth, the worm can rotate and drive the transmission part to rotate, so that the second gear teeth and the first gear teeth are matched to drive the dial to rotate.

According to the downward inclination angle display device, the dial is rotationally arranged on the shell, and the shell plays a role in protecting the dial, so that the dial is not easy to damage compared with a telescopic straight scale; when the worm rotates, the transmission part is driven to rotate through the matching with the transmission part, and the transmission part is in transmission matching with the first gear teeth of the dial through the second gear teeth on the transmission part, so that the rotation of the worm is converted into the rotation of the dial, the effect of adjusting the amplitude of the downward inclination angle is displayed, the transmission precision is higher, the display precision is further improved, and the overall size is reduced.

The technical solution is further explained below:

in one embodiment, the worm is provided with helical teeth arranged along an axial direction of the worm, and the transmission member is provided with helical teeth corresponding to the helical teeth, the helical teeth being arranged along an outer periphery of the transmission member; the first gear teeth and the second gear teeth are straight teeth, and the modulus of the first gear teeth is equal to that of the second gear teeth.

In one of them embodiment, the casing includes first casing, first casing is equipped with first cylinder and second cylinder, first cylinder with the second cylinder is the interval setting, the calibrated scale cover is established on the first cylinder and with first cylinder normal running fit, the driving medium cover is established on the second cylinder and with second cylinder normal running fit.

In one embodiment, the housing further comprises a second housing, the second housing is fixed with the first housing to form a mounting cavity, the dial and the transmission piece are both arranged in the mounting cavity, the spiral teeth are arranged at one end of the worm, and the other end of the worm is positioned outside the mounting cavity;

a first scale interface is arranged on one side of the dial, a first transparent area is arranged on the first shell, and the first transparent area corresponds to the first scale interface; or/and a second scale interface is arranged on the other side of the dial, a second transparent area is arranged on the second shell, and the second transparent area corresponds to the second scale interface.

In one embodiment, the first shell is provided with a first indicator, and the first indicator corresponds to the first scale interface;

or/and the second shell is provided with a second indicator, and the second indicator corresponds to the second scale interface.

In one embodiment, the first housing is provided with a mounting plate, the mounting plate is arranged at the outer side of the first housing, and the mounting plate is provided with a mounting part which is used for being connected with a lower end cover of the antenna.

In one embodiment, one end of the worm is in transmission connection with the transmission part, the other end of the worm is provided with a butt joint column, and the butt joint column is provided with a butt joint groove;

the downward inclination angle display device further comprises a transmission rod, and one end of the transmission rod is in transmission connection with the worm through the butt joint groove.

In one embodiment, the downward inclination angle display device further comprises a first gear and a second gear, the first gear is electrically driven to rotate through the driving electricity of the antenna, the second gear is sleeved on the transmission rod, and the second gear is in transmission connection with the first gear.

Another embodiment provides an antenna comprising:

the pull rod is used for driving the phase shifter to change the phase;

the antenna comprises an antenna body and a phase shifter, wherein the antenna body comprises a base, a lower end cover and a supporting plate, the lower end cover is arranged at one end of the base, the lower end cover is provided with an installation through hole, the supporting plate is arranged on the base and is arranged at an interval with the lower end cover, and the phase shifter is arranged on the base;

in the downward inclination angle display device according to any one of the above technical solutions, the housing is disposed on the lower end cover through the mounting through hole, and the housing is disposed perpendicular to the lower end cover; and

drive assembly, drive assembly is transferred and is established with drive screw including the drive electricity, the drive electricity is transferred on the base, drive screw rotates and establishes in the backup pad, drive screw's one end with the drive electricity is transferred the transmission and is connected, drive screw's the other end can drive the pull rod moves telescopically, drive screw can also drive the worm rotates.

When the antenna needs to adjust the downward inclination angle, the driving electric controller is started and drives the transmission screw rod to rotate, and on one hand, the transmission screw rod drives the pull rod to move in a telescopic mode so as to adjust the downward inclination angle; on the other hand, the transmission screw drives the worm to rotate so as to further drive the dial to rotate, so that the adjustment range of the declination angle is displayed through the scale change of the dial, and the synchronous display of the declination angle adjustment is realized.

The technical solution is further explained below:

in one embodiment, at least two mounting through holes are formed in the lower end cover at intervals, at least two downward inclination angle display devices are arranged, at least two driving assemblies are arranged, at least two pull rods are arranged, and the mounting through holes, the downward inclination angle display devices, the driving assemblies and the pull rods correspond to one another one to one.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements in the drawings are drawn only by way of example, and not necessarily to true scale.

FIG. 1 is a schematic diagram of an embodiment of a downtilt display apparatus applied to an antenna;

FIG. 2 is a schematic view of an assembly structure of the declination angle display device and the lower end cap in the embodiment of FIG. 1;

FIG. 3 is a schematic view of the entire structure of the declination angle display apparatus in the embodiment of FIG. 1;

FIG. 4 is a first exploded perspective view of the downtilt display apparatus of the embodiment of FIG. 1;

FIG. 5 is a second exploded perspective view of the downtilt display apparatus of the embodiment of FIG. 1;

FIG. 6 is a schematic view of a transmission member of the down tilt display device in the embodiment of FIG. 1;

FIG. 7 is a schematic view of a worm structure of the declination angle display device in the embodiment of FIG. 1;

fig. 8 is a schematic structural diagram of a mounting plate on the first housing in the embodiment of fig. 1.

Reference is made to the accompanying drawings in which:

10. a down tilt display device; 110. a first housing; 111. a first column; 112. a second cylinder; 113. a first indicator; 114. mounting a plate; 115. an installation part; 120. a second housing; 121. a third column; 122. a fourth cylinder; 123. a second indicator; 200. a dial scale; 210. a first gear tooth; 310. a transmission member; 311. a second gear tooth; 312. helical teeth; 320. a worm; 321. helical teeth; 322. butting columns; 323. a butt joint groove; 400. a transmission rod; 510. a first gear; 520. a second gear; 600. a pull rod; 710. a lower end cover; 711. mounting a through hole; 712. a limiting plate; 713. a limiting groove; 720. a support plate; 810. installing a box; 820. a drive screw; 830. and a nut.

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings:

in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 3 to 5, one embodiment provides a declination angle display device 10, which includes a housing, a dial 200, a transmission 310 and a worm 320. Wherein:

the worm 320 can rotate, and the rotation of the worm 320 and the adjustment amplitude of the down tilt angle have a certain corresponding relation, so that the rotation amplitude of the worm 320 can reflect the adjustment amplitude of the down tilt angle; the worm 320 rotates to drive the transmission member 310 to rotate, and the transmission member 310 can drive the dial 200 to rotate, thereby reflecting the adjustment range of the down tilt angle. Specifically, the method comprises the following steps:

referring to fig. 3 to 5, the dial 200 is rotatably provided on the housing, the dial 200 is provided with first gear teeth 210, and the first gear teeth 210 are arranged along an outer circumference of the dial 200.

In the embodiment shown in fig. 5, the dial 200 is rotatably engaged with the housing, and the dial 200 is drivingly engaged with the second gear 311 of the driving member 310 through the first gear 210, so as to rotate under the driving of the driving member 310.

Referring to fig. 3 to 5, the transmission member 310 may be a worm gear or a helical gear, the transmission member 310 is rotatably disposed on the housing, the transmission member 310 is in transmission connection with the worm 320, the transmission member 310 is provided with a second gear 311, the second gear 311 is disposed along an outer periphery of the transmission member 310, the second gear 311 is in transmission connection with the first gear 210, and the worm 320 can rotate and drive the transmission member 310 to rotate, so that the second gear 311 and the first gear 210 cooperate to drive the dial 200 to rotate.

In the embodiment shown in fig. 4, the transmission member 310 is a worm gear, the transmission member 310 is in driving engagement with the worm 320, when the worm 320 rotates, the transmission member 310 is driven to rotate, and simultaneously, the second gear teeth 311 on the transmission member 310 are engaged with the first gear teeth 210 of the dial 200, thereby driving the dial 200 to rotate. Compared with the traditional mode that the worm 320 is directly driven with the dial 200, the driving is carried out through the second gear teeth 311 on the driving piece 310, the influence of the radial size of the worm 320 on the overall occupied space of the downward inclination angle display device 10 does not need to be considered excessively, and therefore the size and the occupied space of the downward inclination angle display device 10 are reduced.

In the downward inclination angle display device 10, the dial 200 is rotatably arranged on the housing, and the housing plays a role in protecting the dial 200, so that the dial is not easily damaged compared with a telescopic straight scale; when the worm 320 rotates, the transmission member 310 is driven to rotate through the matching with the transmission member 310, and the transmission member 310 is in transmission matching with the first gear teeth 210 of the dial 200 through the second gear teeth 311 on the transmission member, so that the rotation of the worm 320 is converted into the rotation of the dial 200, the effect of adjusting the downward inclination angle is displayed, the transmission precision is higher, the display precision is further improved, and the whole size is reduced.

In one embodiment, referring to fig. 4 to 7, the worm 320 is provided with a helical tooth 321, the helical tooth 321 is arranged along the axial direction of the worm 320, the transmission member 310 is provided with a helical tooth 312 corresponding to the helical tooth 321, and the helical tooth 312 is arranged along the outer circumference of the transmission member 310; first gear tooth 210 and second gear tooth 311 are straight teeth, and the modulus of first gear tooth 210 is equal to the modulus of second gear tooth 311.

In the embodiment shown in fig. 6, the transmission member 310 is provided with helical teeth 312, the helical teeth 312 being arranged along the periphery of the transmission member 310; in the embodiment shown in fig. 7, the worm 320 is provided with a helical tooth 321, the helical tooth 321 corresponding to the helical tooth 312. When the worm 320 rotates, the worm 320 is rotated by the engagement of the spiral teeth 321 with the helical teeth 312.

In the embodiment shown in FIG. 5, first gear tooth 210 and second gear tooth 311 are straight teeth, the modulus of first gear tooth 210 is equal to the modulus of second gear tooth 311, and first gear tooth 210 and second gear tooth 311 are intermeshed.

As in the embodiment shown in fig. 4 and 5, when the transmission member 310 rotates, the helical teeth 321 are in driving engagement with the helical teeth 312, the helical teeth 312 and the second teeth 311 have the same angular velocity, and the second teeth 311 are in driving engagement with the first teeth 210. With such an arrangement, on one hand, the transmission of the spiral teeth 321 and the helical teeth 312 can realize first-level speed reduction, for example, the speed reduction ratio can be set to 8-20, and the position of the worm 320 can be changed, so that the radial size of the whole lower inclination angle display device 10 mainly depends on the size of the dial 200 and the size of the shell, the overall radial size and the occupied space are reduced, and meanwhile, the modulus of the worm 320 and the helical teeth 312 can be maintained in an optimal state, and the wrong teeth are avoided; on the other hand, the second gear 311 is meshed with the first gear 210 to realize two-stage speed reduction, the speed reduction ratio can be 2-10, and by reducing the modulus of the first gear 210, if the modulus is selected to be 0.2-1, the size of the dial 200 can be effectively reduced under the condition of ensuring the transmission ratio, and meanwhile, the backlash is reduced, so that the transmission precision is further improved. Through two-stage speed reduction, not only can realize high reduction ratio, but also improved the transmission precision to guarantee the display accuracy.

In one embodiment, referring to fig. 3 to 5, the housing includes a first housing 110, the first housing 110 has a first cylinder 111 and a second cylinder 112, the first cylinder 111 and the second cylinder 112 are disposed at an interval, the dial 200 is sleeved on the first cylinder 111 and rotatably engaged with the first cylinder 111, and the transmission member 310 is sleeved on the second cylinder 112 and rotatably engaged with the second cylinder 112.

In the embodiment shown in fig. 4, the first cylinder 111 corresponds to the setting position of the dial 200, and the second cylinder 112 corresponds to the setting position of the transmission member 310, so that the dial 200 and the transmission member 310 are rotationally coupled.

In one embodiment, referring to fig. 3 to 5, the housing further includes a second housing 120, the second housing 120 is fixed to the first housing 110 to form a mounting cavity, the dial 200 and the transmission member 310 are disposed in the mounting cavity, the spiral teeth 321 are disposed at one end of the worm 320, and the other end of the worm 320 is located outside the mounting cavity.

As shown in fig. 3 and 4, the second housing 120 can be fixed with the first housing 110 to form a mounting cavity, the dial 200 and the transmission member 310 are rotatably disposed in the mounting cavity, the spiral teeth 321 are located in the mounting cavity, a part of the worm 320 is located in the mounting cavity, and another part is located outside the mounting cavity to interface with the transmission rod 400.

Alternatively, the second housing 120 and the first housing 110 are fixed by screws.

In an embodiment, referring to fig. 5, the second housing 120 is provided with a third cylinder 121 and a fourth cylinder 122, the third cylinder 121 corresponds to the first cylinder 111, the fourth cylinder 122 corresponds to the second cylinder 112, the dial 200 is further rotatably engaged with the third cylinder 121, and the transmission member 310 is further rotatably engaged with the fourth cylinder 122, which is not described again.

In an embodiment, the first housing 110 and the second housing 120 are further formed with a seat body for supporting the worm 320, and the seat body is provided with a limiting groove 713 corresponding to the worm 320, so that on one hand, the support and the installation of the worm 320 are realized, and on the other hand, the limiting fit of the worm 320 is realized, and the installation accuracy is ensured.

In one embodiment, referring to fig. 4 and 5, a first scale interface is disposed on one side of the scale block 200, and the first housing 110 has a first see-through region corresponding to the first scale interface.

Since at least a part of the readings of the dial 200 needs to be visible to display the adjustment range of the down tilt angle, the first housing 110 needs to be provided with a first see-through region through which the readings on the dial 200 are read and observed.

In one embodiment, similarly, referring to fig. 4 and 5, the other side of the dial 200 is provided with a second scale interface, and the second housing 120 is provided with a second see-through region corresponding to the second scale interface.

In the embodiment shown in fig. 4 and 5, a first scale interface and a second scale interface are respectively disposed on two sides of the dial 200, a first perspective region is disposed in a region where the first housing 110 is located corresponding to the first scale interface, and a second perspective region is disposed in a region where the second housing 120 is located corresponding to the second scale interface.

Alternatively, the first housing 110 and the second housing 120 are both made of a transparent material.

Of course, the first casing 110 and the second casing 120 may also be made of opaque materials to allow observation through the first perspective area and the second perspective area, respectively, and will not be described in detail.

In one embodiment, referring to fig. 5, the first casing 110 is provided with a first indicator 113, and the first indicator 113 corresponds to the first scale interface.

In one embodiment, referring to fig. 4, the second housing 120 is provided with a second indicator 123, and the second indicator 123 corresponds to the second calibration interface.

It will be appreciated that the first indicator 113 corresponds to a current reading position on the first scale interface and the second indicator 123 corresponds to a current reading position on the second scale interface.

The first indicator 113 and the second indicator 123 may be magnifying glasses, or may be indication arrows or indication points, etc. to indicate scales, which is not described again.

In one embodiment, referring to fig. 2, 5 and 8, the first housing 110 is provided with a mounting plate 114, the mounting plate 114 is provided outside the first housing 110, the mounting plate 114 is provided with a mounting portion 115, and the mounting portion 115 is used for connecting with a lower end cap 710 of the antenna.

In the embodiment shown in fig. 8, a mounting plate 114 is fixed to the outer side of the first housing 110, and a mounting portion 115 is provided at the outer end of the mounting plate 114, and the mounting portion 115 is used for connecting with a lower end cap 710 of the antenna.

In the embodiment shown in fig. 2, the lower cap 710 is provided with a limit plate 712, the limit plate 712 is provided with a limit groove 713, the limit groove 713 is disposed corresponding to the mounting portion 115, and the mounting portion 115 is mounted to the limit plate 712 through the limit groove 713, so that the downward inclination display device 10 is mounted to the lower cap 710.

Referring to fig. 8, the mounting plate 114 is a plate vertically fixed to the first housing 110, and the mounting portion 115 is a plate vertically fixed to an outer end of the mounting plate 114. As shown in fig. 2, when the downward inclination display device 10 is mounted, the mounting plate 114 is inserted into the stopper groove 713, and the plate surface of the mounting portion 115 abuts against the plate surface of the stopper plate 712 to perform the fitting and the fitting, thereby mounting the downward inclination display device 10 on the lower cover 710.

In one embodiment, referring to fig. 7, one end of the worm 320 is drivingly connected to the transmission member 310, the other end of the worm 320 is provided with a docking post 322, and the docking post 322 is provided with a docking groove 323.

In one embodiment, referring to fig. 1 to 5, the declination angle display device 10 further includes a transmission rod 400, and one end of the transmission rod 400 is in transmission connection with the worm 320 through the butt-joint groove 323.

In the embodiment shown in fig. 7, one end of the worm 320 located outside the housing is provided with a docking post 322, the docking post 322 is provided with a docking groove 323, the docking groove 323 is arranged corresponding to the transmission rod 400, the transmission rod 400 is in transmission connection with the docking post 322, so that the section of the transmission rod 400 is non-circular, and the groove section of the docking groove 323 is arranged corresponding to the section of the transmission rod 400, so as to realize transmission.

In one embodiment, referring to fig. 1, the downward tilt angle display device 10 further includes a first gear 510 and a second gear 520, the first gear 510 is electrically driven to rotate by the driving power of the antenna, the second gear 520 is sleeved on the transmission rod 400, and the second gear 520 is in transmission connection with the first gear 510.

The first gear 510 is driven to rotate by the driving electric adjuster of the antenna, and the driving electric adjuster is also used for adjusting the downward inclination angle, so that the rotation amplitude of the first gear 510 and the adjustment amplitude of the downward inclination angle have a one-to-one correspondence relationship, the second gear 520 is in transmission connection with the first gear 510, and the second gear 520 is sleeved on the transmission rod 400, so that the rotation of the first gear 510 is transmitted to the transmission rod 400 and further converted into the rotation amplitude of the dial 200.

Another embodiment provides an antenna comprising:

the pull rod 600 is used for adjusting the phase of the declination angle of the phase shifter;

the antenna comprises an antenna main body and a phase shifter, wherein the antenna main body comprises a base, a lower end cover 710 and a support plate 720, the lower end cover 710 is arranged at one end of the base, the lower end cover 710 is provided with an installation through hole 711, the support plate 720 is arranged on the base and is arranged at an interval with the lower end cover 710, and the phase shifter is arranged on the base;

in the declination angle display device 10 according to any of the above embodiments, the housing is disposed on the lower cover 710 through the mounting through hole 711, and the housing is disposed perpendicular to the lower cover 710; and

drive assembly, drive assembly electricity including the drive electricity adjust with drive screw 820, the drive electricity is adjusted and is established on the base, drive screw 820 rotates and establishes on backup pad 720, drive screw 820's one end is transferred with the drive electricity and is connected, drive screw 820's the other end can drive pull rod 600 and carry out the flexible removal, drive screw 820 can also drive worm 320 and rotate.

When the declination angle is required to be adjusted, the electric controller is driven to start and drive the transmission screw 820 to rotate, on one hand, the transmission screw 820 drives the pull rod 600 to perform telescopic movement, the pull rod 600 moves and drives the dielectric plate of the phase shifter to move, and therefore the declination angle adjustment is realized; on the other hand, the driving screw 820 drives the worm 320 to rotate so as to further drive the dial 200 to rotate, so that the adjustment range of the declination angle is displayed through the scale change of the dial 200, and the synchronous display of the declination angle adjustment is realized.

The driving electric power may be a device capable of outputting rotational power, such as a motor capable of outputting rotational power. The transmission screw 820 is in transmission connection with the driving electric regulator, and the transmission screw 820 can drive the pull rod 600 to stretch and retract so as to realize downward inclination angle adjustment; at the same time, the drive screw 820 can drive the drive rod 400 to rotate, thereby driving the worm 320 to rotate.

As shown in fig. 1 and fig. 2, the transmission screw 820 is in transmission connection with a driving electronic module (not shown in the figure), the first gear 510 is sleeved on the transmission screw 820, and when the transmission screw 820 is driven by the driving electronic module to rotate, the first gear 510 rotates; the first gear 510 drives the second gear 520 to rotate due to the transmission between the first gear 510 and the second gear 520; since the second gear 520 is sleeved on the transmission rod 400, the second gear 520 drives the transmission rod 400 to rotate; in addition, since the transmission rod 400 is in transmission connection with the worm 320, the worm 320 is driven to rotate by the transmission rod 400.

As shown in fig. 1, the nut 830 is disposed on the transmission screw 820, the pull rod 600 is disposed on the nut 830, and when the transmission screw 820 rotates, the nut 830 moves along the transmission screw 820 in a telescopic manner, so as to drive the pull rod 600 to extend and retract, thereby achieving the adjustment of the downward inclination angle.

In one embodiment, referring to fig. 1 and 2, at least two installation through holes 711 are provided, at least two installation through holes 711 are arranged on the lower end cover 710 at intervals, at least two lower inclination angle display devices 10 are provided, at least two driving assemblies are provided, at least two pull rods 600 are provided, and the installation through holes 711, the lower inclination angle display devices 10, the driving assemblies and the pull rods 600 correspond to each other one to one.

In the embodiment shown in fig. 1 and 2, a plurality of mounting through holes 711 are provided, and the plurality of mounting through holes 711 are arranged in rows and two rows are provided above and below; the lower inclination angle display device 10 is provided in plurality and corresponds to the mounting through holes 711 one to one; the driving assembly is provided with a plurality of driving electric regulators and a plurality of transmission screw rods 820, the driving electric regulators correspond to the transmission screw rods 820 one by one, and the driving electric regulators correspond to the downward inclination angle adjusting devices one by one; be equipped with install bin 810 on the base, the drive electricity is transferred and is all established in install bin 810, and the output shaft that the drive electricity was transferred stretches out from install bin 810 to be connected with drive screw 820 transmission.

In the embodiment shown in fig. 1 and 2, two limiting plates 712 are disposed on the lower cover 710, and each limiting plate 712 is provided with a plurality of limiting grooves 713 for engaging with the mounting portion 115 of the corresponding lower tilt angle display device 10.

In the embodiment shown in fig. 1 and 2, the dials 200 are vertically disposed on the lower end cap 710, and the dials 200 may be disposed in a horizontal row and in an upper row and a lower row, so as to meet the requirement of adjusting and displaying the downtilt angle of multiple frequencies, and the antenna layout of 8-20 frequencies or even more, which not only occupies a small space of the lower end cap 710, but also is easy to model and set. The first case 110 and the second case 120 achieve protection of the dial 200, and have better weather resistance than an extended display device of a straight scale.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

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

1. A downward inclination display device, comprising:

a housing;

2. The lower inclination display device according to claim 1, wherein said worm is provided with helical teeth arranged along an axial direction of said worm, said transmission member is provided with helical teeth corresponding to said helical teeth, said helical teeth being arranged along an outer periphery of said transmission member; the first gear teeth and the second gear teeth are straight teeth, and the modulus of the first gear teeth is equal to that of the second gear teeth.

3. The downward inclination display device according to claim 2, wherein the housing comprises a first housing, the first housing is provided with a first cylinder and a second cylinder, the first cylinder and the second cylinder are arranged at intervals, the dial is sleeved on the first cylinder and is in rotating fit with the first cylinder, and the transmission member is sleeved on the second cylinder and is in rotating fit with the second cylinder.

4. The downward inclination angle display device according to claim 3, wherein the housing further comprises a second housing, the second housing is fixed with the first housing and forms a mounting cavity, the dial and the transmission member are both arranged in the mounting cavity, the helical teeth are arranged at one end of the worm, and the other end of the worm is positioned outside the mounting cavity;

5. The downward inclination display device according to claim 4, wherein the first housing is provided with a first indicator corresponding to the first scale interface;

6. The downtilt display device according to claim 3, wherein the first housing is provided with a mounting plate provided at an outer side of the first housing, the mounting plate having a mounting portion for connection with a lower end cap of an antenna.

7. The lower inclination angle display device according to any one of claims 1 to 6, wherein one end of the worm is in transmission connection with the transmission member, the other end of the worm is provided with a butt column, and the butt column is provided with a butt groove;

8. The downward inclination angle display device according to claim 7, further comprising a first gear and a second gear, wherein the first gear is electrically driven to rotate by the driving power of an antenna, the second gear is sleeved on the transmission rod, and the second gear is in transmission connection with the first gear.

9. An antenna, comprising:

the pull rod is used for driving the phase shifter to change the phase;

the lower inclination display device according to any one of claims 1 to 8, wherein the housing is provided on the lower end cap through the mounting through hole, and the housing is provided perpendicular to the lower end cap; and

10. The antenna of claim 9, wherein at least two mounting through holes are formed in the lower end cap at intervals, at least two downtilt display devices are formed in the lower end cap, at least two driving assemblies are formed in the drive assembly, at least two pull rods are formed in the pull rod, and the mounting through holes, the downtilt display devices, the driving assemblies and the pull rods correspond to one another one to one.