CN106159441B - Angle indicator, downward inclination angle display device and antenna - Google Patents
Angle indicator, downward inclination angle display device and antenna Download PDFInfo
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- CN106159441B CN106159441B CN201610641248.5A CN201610641248A CN106159441B CN 106159441 B CN106159441 B CN 106159441B CN 201610641248 A CN201610641248 A CN 201610641248A CN 106159441 B CN106159441 B CN 106159441B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Abstract
The invention provides an angle indicator, which comprises a shell with a window, an angle scale arranged in the shell and capable of rotating relative to the shell, and a reset element connected with the angle scale; the angle scale is used for being connected with an external traction mechanism so as to rotate under the action of the traction mechanism and display an angle value at the window; the reset element is used for driving the angle scale to rotate and reset when the acting force of the traction mechanism on the angle scale is weakened. Because the angle indicator is provided with the shell, the interference of severe application environment can be avoided, the angle indicator can be applied to a declination angle display device, the declination angle can be conveniently adjusted, and the normal use of the declination angle display device can be ensured. In addition, a downward inclination angle display device applying the angle indicator and an antenna adopting the downward inclination angle display device are also provided.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an angle indicator, a downward inclination angle display device adopting the angle indicator and an antenna applying the display device.
Background
In mobile communication engineering, a base station antenna is used as an important device for receiving and transmitting electromagnetic waves, has important influence on the coverage quality of communication signals, and accurately adjusting the downward inclination angle of the antenna is an important measure for optimizing the network coverage quality.
Regarding the adjustment mode of the antenna downward inclination angle, two types of manual adjustment and electric adjustment are commonly used at present. The electric adjustment is relatively manual adjustment, and the advantage lies in not needing artifical tower that climbs, need not go to the operation at the antenna end, has very big convenience and easy realizability. At present, especially in economically developed and more developed areas, electric regulation has gradually become a mainstream, and the application thereof is more and more extensive.
In an electrically-tunable antenna system, two conventional ways of measuring a downtilt angle are generally available, one way is to display the downtilt angle of an antenna through a scale rod extending out of an end cover, as shown in fig. 1, one end of the scale rod 2 in the antenna 1 is connected with a phase shifter transmission device, the scale rod is rigid and extends out of an antenna housing body, so that the antenna is easily damaged by an external environment, a rod body and a through hole can be frozen in a severe cold area to clamp the scale rod, the antenna cannot normally work, and meanwhile, the waterproof operation of a radio frequency connector in engineering is also influenced; the other one is the angle scale that adopts gear reduction mechanism to drive, and its angle scale structure is complicated, and this scheme need have the transfer line to be connected to end cover department simultaneously, occupies great antenna end cover space resource, and the end cover space can be very crowded to the multifrequency antenna, brings inconvenience for the antenna installation construction, and in addition, internal structure overall arrangement also can receive very big restriction to the electricity accent antenna of built-in motor form, is unfavorable for antenna structure's miniaturization.
Disclosure of Invention
A primary object of the present invention is to provide an angle indicator that can be protected from a harsh environment.
Another object of the present invention is to provide a downtilt display device to which the above-described angle indicator is applied, which can avoid the influence of a severe application environment.
Still another object of the present invention is to provide an antenna using the above-mentioned downtilt display device, which can be applied to outdoor occasions without being affected by a severe environment and has a small size.
In order to achieve the purpose, the invention provides the following technical scheme:
an angle indicator comprises a shell with a window, an angle scale which is arranged in the shell and can rotate relative to the shell, and a reset element connected with the angle scale; the angle scale is used for being connected with an external traction mechanism so as to rotate under the action of the traction mechanism and display an angle value at the window; the reset element is used for driving the angle scale to rotate and reset when the acting force of the traction mechanism on the angle scale is weakened.
Furthermore, the angle adjusting device also comprises a wire wheel which is arranged in the shell, is connected with the angle scale and the reset element and can rotate relative to the shell, and an external traction mechanism and the reset element respectively act on the angle scale through the wire wheel.
Preferably, the reset element is a torsion spring, the bottom end of the wire wheel is provided with a holding groove for holding the torsion spring, and the torsion spring is arranged in the holding groove and two ends of the torsion spring respectively support the wire wheel and the shell tightly.
Preferably, a rotating shaft is arranged on the wire wheel, and the angle scale is sleeved on the rotating shaft and can rotate around the rotating shaft.
Furthermore, the angle indicator also comprises a damping mechanism connected with the angle scale and the wire wheel, the wire wheel drives the angle scale to rotate by means of the damping mechanism, and the angle scale can overcome the resistance of the damping mechanism and rotate relative to the wire wheel.
Preferably, the wire wheel is provided with a containing hole for containing the damping mechanism, the damping mechanism is arranged in the containing hole and comprises a support, an elastic connecting piece and an ejector pin which are sequentially connected, the support is connected with the angle scale, and the ejector pin is abutted against the wall of the containing hole.
Furthermore, the hole wall of the containing hole is provided with a damping tooth, and the ejector pin is in contact connection with the damping tooth.
Preferably, the angle dial comprises an upper angle dial and a lower angle dial, the upper end and the lower end of the wire wheel are both provided with rotating shafts, and the upper angle dial and the lower angle dial are correspondingly arranged on the rotating shafts at the upper end and the lower end of the wire wheel and can rotate around the rotating shafts.
Preferably, an adjusting hole is formed in the end portion of the rotating shaft, and an adjusting window is formed in the shell corresponding to the adjusting hole.
Preferably, the housing includes an angle disk box and a sleeve formed at one side of the angle disk box in the axial direction, the angle disk and the reel are provided with external teeth which are engaged with each other, and the angle disk and the reel are respectively provided in the angle disk box and the sleeve and engaged with each other by the respective external teeth.
Preferably, the reel comprises a grooved pulley, a gear and an elastic connecting piece, wherein the top end of the grooved pulley is provided with an upper central hole, the gear is arranged above the grooved pulley and can be pressed into the upper central hole, and the elastic connecting piece is arranged in the upper central hole and is elastically pressed between the grooved pulley and the gear.
Furthermore, a central shaft provided with an adjusting hole is arranged in the middle of the top end of the angle scale, and the shell is provided with an adjusting window corresponding to the adjusting hole; the top end of the gear is provided with a connecting column penetrating through the top end of the shell, the lower end of the gear forms at least one key tooth, and a key groove matched with the key tooth is formed in the position, corresponding to the key tooth, of the top end of the grooved pulley.
Preferably, the casing further comprises a lower sleeve cover connected with the sleeve, the reset element is a torsion spring, a lower central hole is formed in the bottom end of the grooved wheel, one end of the torsion spring extends into the lower central hole and abuts against the grooved wheel tightly, and the other end of the torsion spring abuts against the lower sleeve cover tightly.
A declination angle display device is used for displaying the declination angle of an antenna adjusted by a declination angle adjusting device and comprises the angle indicator and a traction mechanism which is connected with the angle indicator and is used for transmitting the relative displacement of a transmission element of the declination angle adjusting device to the angle indicator; the traction mechanism comprises a traction rope; the angle scale is connected with the traction rope so as to rotate under the action of the traction rope, display the angle value of the declination angle at the window and rotate to reset under the action of the resetting element when the acting force of the traction rope is weakened.
Further, the traction mechanism comprises a steering unit connected with the traction rope and used for changing the arrangement position of the traction rope.
Preferably, the steering unit comprises a steering wheel, a positioning column or a protective tube which can be fixed on the antenna reflection plate.
An antenna comprises an antenna housing, an antenna end cover connected with the antenna housing in a matched mode, a reflecting plate, a downward inclination angle adjusting device and a downward inclination angle display device, wherein the reflecting plate, the downward inclination angle adjusting device and the downward inclination angle display device are all arranged in the antenna housing, the downward inclination angle display device is the downward inclination angle display device, and a traction rope is connected with a transmission element of the downward inclination angle adjusting device.
Optionally, the lower inclination angle adjusting device includes a screw joint or a motor connected to the screw.
Optionally, the angle indicator is mounted on the antenna end cover and exposes the window to the outside of the end cover, or the angle indicator is embedded on the sidewall of the radome and exposes the window to the outside of the radome.
Compared with the prior art, the scheme of the invention has the following advantages:
1. because the angle indicator is provided with the shell, the angle indicator can deal with the interference of some external environments, and the clamping stagnation fault or damage caused by freezing and the like can be avoided, so that the angle indicator can be ensured to normally indicate the angle, and the normal work of an antenna applying the angle indicator is further ensured.
2. The pulling rope used in the invention is made of flexible material, can change the moving direction by means of the steering unit, and the pulling rope occupies extremely small space, so that the installation position of the phase shifter driving mechanism is not limited by the installation position of the declination angle display device, the space layout limitation caused by direct rigid connection or gear mechanism connection between the scale and the driving mechanism in the prior art is overcome, and the optimization of the internal structure layout of the antenna and the miniaturization of the antenna are facilitated.
3. The angle indicator is used for displaying the downward inclination angle of the antenna, the angle indicator only partially extends out of the end cover, and the antenna does not occupy larger space of the end cover of the antenna, so that the antenna is favorable for antenna installation construction and waterproof construction at an interface.
4. The angle indicator realizes the adjusted antenna downward inclination angle by driving the rotation of the internal angle scale through the hauling rope, so that the angle indicator is flexible in installation position and not limited, can be installed at the lower end cover of the antenna and also can be installed at the back of the antenna housing, and is beneficial to designing and observing the antenna downward inclination angle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of a prior art downtilt display;
FIG. 2 is a perspective view of one embodiment of the downtilt display apparatus of the present invention, illustrating its installation in an external RCU antenna;
FIG. 3 is an enlarged fragmentary view of the angular indicator mounting position A shown in FIG. 2;
FIG. 4 is a perspective view of another embodiment of the downtilt display apparatus according to the present invention, showing the installation position of the motor of the display apparatus, and in which the traction rope is routed by means of a steering unit including a steering wheel;
FIG. 5 is a perspective view of a lower inclination display device according to another embodiment of the present invention, showing a traction rope whose running direction is set by a protection tube;
FIG. 6 is a perspective view of the angle indicator of the present invention mounted to the side of a radome;
FIG. 7 is a perspective view of one embodiment of the angle indicator of the present invention;
FIG. 8 is an exploded view of the angle indicator shown in FIG. 7;
FIG. 9 is a perspective view of another embodiment of the angle indicator of the present invention;
FIG. 10 is an exploded view of the angle indicator shown in FIG. 9;
FIG. 11 is a cross-sectional view of the angle indicator of FIG. 9 taken along its axis of symmetry;
FIG. 12 is a perspective view of yet another embodiment of the angle indicator of the present invention;
FIG. 13 is an exploded view of the angle indicator shown in FIG. 12;
fig. 14 is an exploded view of the reel shown in fig. 13.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
Example one
As shown in fig. 2 to 11, the downtilt display device 1000 (hereinafter, referred to as a "display device") according to the present invention is used for displaying the downtilt angle of the antenna adjusted by the downtilt adjustment device, and includes an angle indicator 10 and a traction mechanism 90 connected to the angle indicator 10, where the traction mechanism 90 includes a traction rope 14 and a rope buckle 141 connected to one end of the traction rope 14.
Referring to fig. 8, the angle indicator 10 includes a housing (not numbered, the same below) having a window, an angle scale 12 disposed in the housing and rotatably displaying scales thereon at the window, and a reset element 19 for driving the angle scale 12 to rotate and reset.
Referring to fig. 7 and 9, in the present embodiment, the housing includes an upper housing 11 and a lower housing 17 that are fastened to each other, the housing is substantially circular, the lower housing 17 is provided with a mounting seat 171 at a middle portion thereof, and the mounting seat 171 is provided with a mounting hole 172, so that the housing is mounted on the lower end cover 50 or the antenna reflection plate by means of screws. The upper surface of the upper shell 11 is arranged in a transparent manner, so that the window (not numbered, the same below) is formed on the upper surface, a reading pointer 111 (see fig. 7) is engraved at the window, and an angle corresponding to the pointer 111 is the current electrical downtilt angle of the antenna. In other embodiments, the housing may be provided with a transparent region to form a window, without the need for an integral transparent arrangement of the upper surface of the housing.
The angle scale 12 is connected to one end of the pull cord 14 and the restoring element 19. The other end of the pulling rope 14 is used for being connected with a transmission nut 222 of the antenna downward inclination angle adjusting device, so as to transmit the relative displacement of the transmission nut 222 to the angle indicator 10, and further drive the angle scale 12 of the angle indicator 10 to display the downward inclination angle. The reset element 19 is used for driving the angle scale 12 to rotate and reset when the pulling force of the pulling rope 14 on the angle scale 12 disappears or is weakened. The return element 19 is preferably a torsion spring.
Because the angle indicator 10 in the display device 1000 of the present invention has a housing (the angle value can be read from the window of the housing), it can cope with some external severe environment interferences, and can avoid the jamming failure or damage caused by freezing, etc., to ensure the normal operation of the antenna.
In addition, since the pulling rope 14 has a flexible steering function, the angle indicator 10 can be disposed at any position of the antenna, for example, the angle indicator 10 is mounted at the antenna end cap 50, and the window extends to the outside of the antenna end cap 50, so that the angle change of the adjusted downward inclination angle of the antenna can be observed from the outside of the antenna. Alternatively, the angle indicator 10 is provided on a radome sidewall 80, such as on the radome back.
It can be seen that the pull string 14 is made of a flexible material so that it can be routed inside the radome.
Further, the traction mechanism 90 further includes a steering unit (not numbered, the same applies hereinafter) for adjusting the setting position of the traction rope 14, and the steering unit includes a plurality of steering wheels 30, 31 arranged at an angle.
The pulling rope 14 is wound around the steering wheels 30, 31, and both ends of the pulling rope are respectively connected with the angle scale 12 and the transmission nut 222.
Please refer to fig. 2, fig. 4 and fig. 5, it can be seen that, by providing the steering unit, the traveling direction of the pulling rope 14 can be arbitrarily changed by the steering wheels 30 and 31 in the antenna, and the pulling rope 14 occupies a very small space, so that the installation position of the phase shifter transmission mechanism 20 is not limited by the installation position of the angle indicator 10, which is beneficial to the structural layout inside the antenna, and further beneficial to the miniaturization of the antenna.
It should be understood that the steering wheel may include a rotatable or non-rotatable structure, and may even be replaced by a positioning post fixed to the antenna reflection plate 70. In other embodiments, the number of the steering wheels can be set according to actual needs, for example, one or more steering wheels can be set.
In another embodiment, the steering wheel of the steering unit is replaced by a protective tube 33, and the traction rope 14 is inserted into the protective tube 33 and the two ends of the traction rope are exposed to be connected with the angle scale 12 and the transmission nut 222 respectively.
The sheath 33 is made of a rigid or semi-rigid material and can be bent into a specific shape as required by those skilled in the art to change the orientation of the pull-cord 14.
Further, please refer to fig. 8, the angle indicator 10 further includes a pulley 13 disposed in the housing and connected to the angle scale 12 and the reset element, and the pulley 13 is rotatable relative to the housing to make the angle scale 13 rotatably display the angle value at the window. In this embodiment, the angle scale 12 is connected to the traction cable 14 and the restoring element 19 via the pulley 13.
The upper end and the lower end of the wire wheel 13 are provided with rotating shafts 132, the wire wheel 13 is installed in the shell through the rotating shafts 132, and the angle scale 12 is sleeved on the rotating shafts 132 and is arranged between the wire wheel 13 and the shell. One end of the traction rope 14 is wound on the pulley 13, and the other end extends out of the casing to be connected with a transmission nut 222 of the downward inclination angle adjusting device, so that the pulley 13 is driven to rotate when the downward inclination angle is adjusted, and the angle scale 12 installed on the pulley 13 is further driven to rotate.
Preferably, the wire wheel 13 is in a round cake shape, and the angle scale 12 is arranged on the upper surface of the wire wheel 13. The angle scale 12 is directly integrated with the reel 13 or connected by fasteners or adhesives. A wire groove (not numbered) for accommodating the traction rope 14 is annularly arranged on the circumferential side wall of the wire wheel 13.
Further, the angle dial 12 can be rotated relative to the pulley 13 for initial angle calibration. In particular, the angular disc 12 can rotate around the rotation axis 132 and thus be displaced with respect to the pulley 13.
Further, the angle indicator 10 includes a damping mechanism (not numbered, the same applies hereinafter) connected to both the angle scale 12 and the pulley 13. One side of the axis of the reel 13 is provided with a containing hole 131, and the damping mechanism is arranged in the containing hole 131.
Preferably, the damping mechanism includes a support 161, an elastic connecting piece 162 and a thimble 163 connected in sequence, the support 161 is connected with the angle scale 12, and the thimble 163 abuts against the hole wall of the accommodating hole 131.
Preferably, a damping tooth 133 is arranged on the hole wall of the accommodating hole 131, and the thimble 163 is in contact connection with the damping tooth 133.
Preferably, the elastic connection member 162 is a compression spring.
In general, the angle scale 12 is tightly fitted to the pulley 13 due to the damping force of the damping mechanism, i.e. it does not rotate relative to the pulley 13 with the rotation of the pulley 13. When initial angle calibration is needed, the adjusting part acts on the angle scale 12 or the wire wheel 13, the damping force of the damping mechanism between the angle scale 12 and the wire wheel 13 is overcome, and the angle scale 12 rotates relative to the wire wheel 13, so that the calibration of the initial position of the angle scale 12 is completed.
Referring to fig. 10, preferably, the angle dial 12 includes an upper angle dial 12' and a lower angle dial 16, which are respectively sleeved on the rotating shafts 132 at the upper and lower ends of the pulley 13 to respectively show the angle values from the upper and lower end surfaces of the housing.
Preferably, a polygonal adjusting hole 134 is formed at an end of the rotating shaft 132, and an adjusting window 113 is formed in the housing corresponding to the adjusting hole 134, so that an adjusting member, such as a wrench, is inserted into the adjusting window 113 through the adjusting hole 134 to rotate the pulley 13, thereby adjusting an initial angle value on the angle scale 12.
The bottom end of the wire wheel 13 is provided with a containing groove (not numbered), the torsion spring serving as a reset element 19 is arranged in the containing groove, and two ends of the torsion spring are respectively abutted against the wire wheel 13 and the shell, so that when the action of the traction rope 14 on the wire wheel 13 disappears or the acting force is weakened, the wire wheel 13 is driven to rotate reversely, and the angle scale 12 is reset.
Preferably, a sheath 18 is arranged between the upper shell 11 and the lower shell 17, one end 142 of the traction rope 14 is wound on the wire groove of the reel, and the other end passes through the sheath 18 and extends to the outside of the shell to be connected with a rope buckle 141, so as to be fixed on the transmission nut 222 through the rope buckle 141.
Example two
This embodiment is similar to the embodiment, except that in this embodiment, an angle indicator 10 of another embodiment of the present invention is provided.
Referring to fig. 12 to 14, the angle indicator 10 is mainly composed of a housing (not numbered, the same below), an angle dial 1020, a pulley 1040, and a reset element 1060.
The housing is comprised of an upper shell 1010 and a lower shell 1030. The upper shell 1010 and/or the lower shell 1030 are provided with a window (not numbered) and a reading pointer 1011 arranged close to the window for indicating the current declination angle of the antenna, the upper shell 1010 and the lower shell 1030 are made of transparent materials and used for observing the angle value on the angle scale 1020 through the shell, the lower shell 1030 forms a sleeve 1031 on one axial side of the lower shell, and an opening 1032 is formed in the side wall of the sleeve 1031, so that one end of the traction rope 1050 penetrates out of the opening 1032.
The outer periphery of the pulley 1040 forms second external teeth matched with the first external teeth 1022 of the angle scale 1020, the pulley 1040 is placed in the sleeve 1031, and the pulley 1040 is meshed with the first external teeth of the angle scale 1020 through the second external teeth 1042 of the pulley 1040, so that transmission between the pulley 1040 and the angle scale 1020 is realized.
It can be seen that the housing is formed of an angle disk housing for mounting the angle disk 1020 and a sleeve 1031 formed at one side of the angle disk housing in the axial direction for mounting the reel 1040.
The pulling rope 1050 penetrates through the opening 1032 to be wound on the reel (for example, in a wire slot formed in the reel), and when the pulling rope moves outwards under the action of the driving nut, the pulling rope drives the reel 1040 and the angle scale 1020 to rotate, and when a certain scale 1021 on the angle scale 1020 rotates to the position of the reading pointer 1011 on the housing, the scale 1021 is the current declination angle of the antenna.
Further, the angle indicator 10 may perform a calibration function for the initial scale of angle scale 1020.
In this embodiment, the pulley 1040 mainly includes an i-shaped grooved pulley 1041, a gear 1042, and an elastic connection element 1043 (e.g., a compression spring). The top end of the grooved pulley 1041 is provided with an upper central hole (not numbered, the same applies below), the gear 1042 is arranged above the grooved pulley 1041 and can be partially or wholly pressed into the upper central hole, and the elastic connecting piece 1042 is arranged in the upper central hole and is elastically pressed between the grooved pulley 1041 and the gear 1042.
A plurality of key teeth 10421 are formed at the lower end of the gear 1042, key slots 10411 are formed on the hole wall of the central hole on the grooved pulley 1041 at positions corresponding to the key teeth, the grooved pulley 1041 and the gear 1042 are connected by the mutual matching of the key slots 10411 and the key teeth 10421, and the gear 1042 can axially slide along the grooved pulley 1041, so that the movement guiding function of the gear 1042 is realized.
The other end of the gear 1042 is provided with a connecting column 10422, and is connected with the upper casing 1010 through the connecting column 10422, and the connecting column 10422 can extend to the outside of the casing through the upper casing 1010.
The top end of the central axis of the angle plate 1020 is further provided with a polygonal adjusting hole 1023, and the upper shell 1010 is provided with an adjusting window 1012 corresponding to the adjusting hole 1023, so that an adjusting piece (not shown) matched and connected with the adjusting hole 1023 is inserted into the adjusting hole 1023 through the adjusting window 1012 to screw the angle plate 1020 to calibrate the initial position of the angle plate 1020.
The specific calibration principle is as follows:
when the connection post 10422 of the gear 1042 is pressed downward, the elastic connection member 1043 is compressed to separate the gear 1042 from the angle scale 1020, at this time, the adjustment member is matched with the adjustment hole 1023 at the top end of the central axis of the angle scale 1020 to rotate the angle scale 1020, so as to adjust the initial angle position of the angle scale 12 to the reading pointer 1011 of the housing, calibration of the initial value of the downward inclination angle is performed, after the calibration is completed, the connection post 10422 is released, and the gear 1042 is restored to the original position under the elastic force of the elastic connection member 1043 (i.e., the second outer teeth thereof are re-engaged with the first outer teeth 1022 of the angle scale 1020).
The reset element 1060 is a torsion spring, the housing further includes a lower sleeve cover 1070 connected to the sleeve 1031, a lower central hole (not shown) is provided at the bottom end of the sheave 1041, one end of the torsion spring extends into the lower central hole of the sheave 1041, such that one end abuts against the sheave 1041, and the other end abuts against the lower sleeve cover 1070.
When the traction rope 1050 rotates under the driving of the driving nut 222, the pull wire wheel 1040 (specifically, the grooved wheel 1041) is pulled, the torsion spring as the reset element 1060 is compressed by rotation to accumulate torsion; when the driving nut 222 moves reversely, the pulling force of the pulling rope 1050 on the wire wheel 1040 disappears, and the wire wheel 1040 rotates reversely under the torsion of the torsion spring, so that the pulling rope 1050 is wound on the wire wheel 1040. The lower cover 1070 is snapped onto the sleeve 1031 of the lower housing 1030.
EXAMPLE III
Referring to fig. 2 to 6, in this embodiment, an antenna (not numbered) using the downtilt display device of the above example is disclosed, which can cope with some external environment interferences, can avoid jamming failures or damages caused by freezing, etc., and has a small volume, a wide application range, and a long service life. In addition, the movement direction of the traction rope can be changed by means of the steering unit, and the traction rope occupies a small space, so that the installation position of the phase shifter driving mechanism is not limited by the installation position of the declination angle display device, the spatial layout limitation caused by direct rigid connection or gear mechanism connection between the ruler and the driving mechanism in the prior art is overcome, and the optimization of the internal structural layout of the antenna and the miniaturization of the antenna are facilitated.
The antenna comprises an antenna housing, an antenna end cover matched with the antenna housing, a reflecting plate, a downward inclination angle adjusting device and the downward inclination angle display device, wherein the reflecting plate, the downward inclination angle adjusting device and the downward inclination angle display device are all arranged in the antenna housing.
The downward inclination angle adjusting device comprises a transmission mechanism 20, which comprises a screw 212 and a transmission element, such as a transmission nut 222, cooperatively connected with the screw. The driving nut 222 is sleeved on the screw 212 and engaged with the screw 212 to make a reciprocating linear motion along the axial direction of the screw 212 when the screw 212 is driven to rotate. The driving nut 222 is also fixedly connected to one end of the pull rod 230 of the phase shifter 40 to perform phase adjustment, thereby achieving downward tilt angle adjustment. One end of the pulling rope 14 is fixed on the transmission nut 222 (through the rope buckle 141), and the other end is connected with the angle scale 12 (in the second embodiment, the angle scale is 1020) of the angle indicator 10, so as to drive the angle scale 12 (or 1020) to rotate to display the downtilt angle value when the downtilt angle of the antenna is adjusted.
Further, a driving mechanism 240 is included, which is connected to the screw 212 of the transmission mechanism 20 to rotate the screw 212.
The driving mechanism 240 is a screw joint (see fig. 2) provided on the outside of the antenna end cap 50, and an operator can adjust the downward inclination angle of the antenna by screwing the screw joint.
The driving mechanism 240 may also be a motor 240 (see fig. 4 and 5) disposed inside the radome, and may be rotated to adjust the down tilt angle by receiving an external control signal. It can be observed that the installation of the transmission mechanism is not limited by the installation position of the angle indicator 10, and the whole invention is beneficial to the situation of the internal space layout of the antenna, and has no defects due to the addition of the motor 240.
Due to the flexible steering function of the pulling rope 14, the angle indicator 10 can be arranged at any position of the antenna, for example, the angle indicator 10 is arranged at the antenna end cover 50, and the window extends to the outside of the antenna end cover 50, so that the angle change of the adjusted downward inclination angle of the antenna can be observed from the outside of the antenna. Alternatively, the angle indicator 10 may be provided on a sidewall of the radome 80, such as on a backside of the radome, as shown in fig. 6.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (18)
1. An angle indicator is characterized by comprising a shell with a window, an angle scale which is arranged in the shell and can rotate relative to the shell, and a reset element connected with the angle scale; the angle scale is used for being connected with an external traction mechanism so as to rotate under the action of the traction mechanism and display an angle value at the window; the reset element is used for driving the angle scale to rotate and reset when the acting force of the traction mechanism on the angle scale is weakened;
the angle indicator also comprises a wire wheel which is arranged in the shell and can rotate relative to the shell;
the traction mechanism comprises a traction rope, one end of the traction rope is wound on the wire wheel, and the other end of the traction rope extends out of the shell;
the angle scale is connected with the traction rope and the reset element through the wire wheel.
2. The angle indicator of claim 1, wherein the reset element is a torsion spring, the bottom end of the reel is provided with a receiving groove for receiving the torsion spring, the torsion spring is disposed in the receiving groove, and two ends of the torsion spring respectively abut against the reel and the housing.
3. The angle indicator of claim 1, wherein the spool is provided with a rotating shaft, and the angle dial is sleeved on the rotating shaft and can rotate around the rotating shaft.
4. The angle indicator of claim 3, further comprising a damping mechanism coupled to the angle scale and the pulley, the pulley driving the angle scale to rotate via the damping mechanism, the angle scale being rotatable relative to the pulley against a resistance of the damping mechanism.
5. The angle indicator of claim 4, wherein the reel is provided with a receiving hole for receiving the damping mechanism, the damping mechanism is disposed in the receiving hole, and the damping mechanism comprises a support, an elastic connecting piece and a thimble, which are connected in sequence, the support is connected with the angle scale, and the thimble abuts against the wall of the receiving hole.
6. The angle indicator of claim 5, wherein the receiving bore wall is provided with a damping tooth, and the thimble is in contact with the damping tooth.
7. The angle indicator of claim 1, wherein the angle dial comprises an upper angle dial and a lower angle dial, wherein the upper end and the lower end of the reel are provided with rotating shafts, and the upper angle dial and the lower angle dial are correspondingly arranged on the rotating shafts at the upper end and the lower end of the reel and can rotate around the rotating shafts.
8. The angle indicator of any one of claims 3 to 7, wherein an adjusting hole is formed at an end of the rotating shaft, an adjusting window is formed in the housing corresponding to the adjusting hole, and the adjusting window is used for allowing an adjusting piece to pass through the housing and be inserted into the adjusting hole to screw the reel.
9. The angle indicator of claim 1, wherein the housing includes an angle disk case and a sleeve formed at one axial side of the angle disk case, the angle disk and the pulley being provided with external teeth that are engaged with each other, the angle disk and the pulley being respectively provided in the angle disk case and the sleeve and engaged with the respective external teeth.
10. The angle indicator of claim 9, wherein the pulley comprises a sheave having an upper central hole formed at a top end thereof, a gear disposed above the sheave and being pressed into the upper central hole, and a resilient connecting member disposed in the upper central hole and being urged between the sheave and the gear.
11. The angle indicator of claim 10, wherein a central shaft with an adjusting hole is disposed in the middle of the top end of the angle scale, the housing has an adjusting window corresponding to the adjusting hole, and the adjusting window is used for allowing an adjusting member to pass through the housing and be inserted into the adjusting hole to screw the angle scale; the top end of the gear is provided with a connecting column penetrating through the top end of the shell, the lower end of the gear forms at least one key tooth, and a key groove matched with the key tooth is formed in the position, corresponding to the key tooth, of the top end of the grooved pulley.
12. The angle indicator of claim 10, wherein the housing further comprises a lower sleeve cover connected to the sleeve, the reset element is a torsion spring, a lower central hole is formed at the bottom end of the sheave, one end of the torsion spring extends into the lower central hole to tightly abut against the sheave, and the other end of the torsion spring abuts against the lower sleeve cover.
13. A downtilt display device for displaying the downtilt angle of an antenna adjusted by a downtilt adjustment device, comprising the angle indicator of any one of claims 1 to 12 and a traction mechanism connected to the angle indicator for transmitting the relative displacement of a transmission element of the downtilt adjustment device to the angle indicator;
the traction mechanism comprises a traction rope;
the angle scale is connected with the traction rope so as to rotate under the action of the traction rope, display the angle value of the declination angle at the window and rotate to reset under the action of the resetting element when the acting force of the traction rope is weakened.
14. The downtilt display device according to claim 13, wherein the traction mechanism further comprises a steering unit coupled to the traction rope for changing a position at which the traction rope is disposed.
15. The downtilt display device according to claim 14, wherein the steering unit comprises a steering wheel, a positioning post or a protective tube that can be fixed on the antenna reflection plate.
16. An antenna comprises an antenna housing, an antenna end cover connected with the antenna housing in a matched mode, a reflecting plate, a downward inclination angle adjusting device and a downward inclination angle display device, wherein the reflecting plate, the downward inclination angle adjusting device and the downward inclination angle display device are all arranged in the antenna housing, the downward inclination angle display device is the downward inclination angle display device according to any one of claims 13 to 15, and a traction rope is connected with a transmission element of the downward inclination angle adjusting device.
17. The antenna of claim 16, wherein the downtilt adjustment device comprises a screw joint or a motor connected to a screw.
18. The antenna of claim 16, wherein the angle indicator is mounted on the antenna end cap with the window exposed outside the end cap, or wherein the angle indicator is embedded on the radome sidewall with the window exposed outside the radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641248.5A CN106159441B (en) | 2016-08-04 | 2016-08-04 | Angle indicator, downward inclination angle display device and antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610641248.5A CN106159441B (en) | 2016-08-04 | 2016-08-04 | Angle indicator, downward inclination angle display device and antenna |
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| CN106159441A CN106159441A (en) | 2016-11-23 |
| CN106159441B true CN106159441B (en) | 2021-08-20 |
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| KR101899928B1 (en) * | 2017-01-26 | 2018-09-18 | 주식회사 케이엠더블유 | Antenna Assembly |
| CN110462927B (en) * | 2017-03-31 | 2021-09-14 | 华为技术有限公司 | Antenna downward inclination angle adjusting device and communication equipment |
| CN107994339B (en) * | 2017-12-29 | 2023-11-10 | 京信通信技术(广州)有限公司 | Angle indicator and downward inclination angle indicating device of electric adjusting antenna |
| CN112448124B (en) * | 2020-11-18 | 2024-01-02 | 广州赛宝计量检测中心服务有限公司 | Calibrating device for directional antenna |
| CN112787074B (en) * | 2020-12-31 | 2021-09-24 | 华兴通信技术有限公司 | Multi-array base station antenna with self-adjusting function |
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Effective date of registration: 20200119 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Address before: 510663, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before: Jingxin Communication System (China) Co., Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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