Background
The satellite antenna is a pot which is a metal paraboloid and is responsible for reflecting satellite signals to a feed source and a high-frequency head which are positioned at a focus. The satellite antenna is used for collecting weak signals transmitted from the satellite and removing noise as much as possible. Most antennas are generally parabolic, and some multifocal antennas are formed by a combination of a spherical surface and a parabolic surface. The satellite signal is concentrated to its focus after reflection by the parabolic antenna.
If the stationary orbit position of the satellite is the same as the longitude of the receiving point, the antenna points to the right south; if the satellite orbit position is less than the longitude of the receiving point, the antenna points to the south and the west; if the satellite orbital position is greater than the receive point longitude, the antenna points to the south-east. The Chinese continental rise is in the northern hemisphere, the extreme positions of the antenna are adjusted in the east and west directions, and the antenna is pointed to the south.
The blocking of obstacles such as trees and the like on partial conducting paths is comprehensively considered, so that environmental obstacles need to be considered when the position angle of the antenna is adjusted, most of the existing antennas are arranged at fixed angles, the occupied space is large, and the antennas are not easy to fold and unfold when being carried.
Disclosure of Invention
The present invention is directed to a method for using a portable satellite communication antenna device to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a portable satellite communication antenna device comprises an installation base used for being fixed with a ground foundation, a bedplate transversely arranged on the installation base, a lifting mechanism connected with the bedplate and the installation base and used for adjusting the height of the bedplate, a satellite antenna assembly movably arranged on the bedplate, and a transmission mechanism connected with the antenna assembly and the lifting mechanism and used for driving the antenna assembly to adjust the inclination angle while the bedplate is lifted.
In a further embodiment, the lifting mechanism comprises a bidirectional screw rod horizontally arranged on the mounting base, threaded sleeves symmetrically connected to two sides of the bidirectional screw rod in a threaded manner, and a connecting rod connecting the threaded sleeves and the bedplate; one end of the connecting rod is hinged on the screw sleeve, and the other end of the connecting rod is hinged on the bedplate.
In a further embodiment, a driving wheel is fixed at the end part of the bidirectional screw rod, and a crank for driving the driving wheel to rotate is fixed at the eccentric position of the outer edge of the driving wheel; a sleeve penetrates through and is fixed on one side of the bedplate relative to the driving wheel, a vertical supporting rod with the lower end fixed with the mounting base is sleeved in the sleeve in a sliding mode, and a roller connected with the mounting base in a rolling mode is rotatably arranged below the threaded sleeve.
In a further embodiment, the antenna assembly comprises a parabolic piece movably arranged on the bedplate, a mounting frame fixed at the center of the parabolic piece, and a feed source arranged at the end part of the mounting frame and used for receiving signals, wherein the parabolic piece is arranged on the bedplate through a rotating seat.
In a further embodiment, the transmission mechanism comprises a rack and pinion assembly mounted on the platen and the vertical strut and a turntable connected to the rack and pinion assembly for rotation when the platen is raised and lowered.
In a further embodiment, the gear rack assembly comprises a spur rack fixed on the vertical strut and a gear rotatably arranged on the platen, wherein the gear is meshed with the spur rack, and the transmission part is connected to the gear in the gear rack assembly.
In a further embodiment, a connecting rod is hinged to the eccentric position of the side wall of the rotating disc and used for driving an adjusting rod of the parabolic piece to swing, and the end of the adjusting rod is rotatably connected to the back of the parabolic piece.
A method of using a portable satellite communications antenna assembly, comprising the steps of:
positioning, namely fixing an installation base on a ground foundation and adjusting the directions of a parabolic piece and a signal transmission path;
fixing, namely drilling holes on the ground foundation, and fixing the holes with the ground through expansion screws or fixing bolts penetrating through holes at four corners of the mounting base;
step three, mounting, namely fixing the feed source at the center of the parabolic piece through a mounting rack, rotating the feed source to enable the feed source and the axis of the parabolic piece to be in the same straight line, and switching on a power supply to connect the feed source;
and step four, adjusting the direction, rotating the crank and the driving wheel to drive the bidirectional screw to rotate, adjusting the height of the bedplate, synchronously adjusting the inclination angle of the antenna assembly, testing the signal receiving good degree under the condition of switching on a power supply, and stopping rotating the crank and the driving wheel when the signal receiving meets the expected requirements.
Compared with the prior art, the invention has the beneficial effects that: the device drives the lead screw through manual cranking and rotates the lift of drive platen under the effect of connecting rod, screw thread transmission has self-locking function, can prevent effectively that platen and the antenna module of installing on the platen from surrendering under dead weight or wind-force effect and stepping down, and drive antenna module swing direction with the help of the rack and pinion subassembly in the lift, the receiving angle is more high more than it is less, stride across the obstacle, the receiving angle is more high more low more, stability is improved, can be the preferred let feed received signal, overall structure is adjustable, and is convenient to carry.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a portable satellite communication antenna apparatus includes an installation base 1 for fixing with a ground foundation, a bedplate 8 transversely disposed on the installation base 1, a lifting mechanism connecting the bedplate 8 and the installation base 1 for adjusting a height of the bedplate 8, a satellite antenna assembly movably mounted on the bedplate 8, and a transmission mechanism connecting the antenna assembly and the lifting mechanism for driving the antenna assembly to adjust an inclination angle while the bedplate 8 is lifted;
the satellite antenna assembly is driven to move by driving the transmission mechanism to move while the lifting mechanism drives the bedplate 8 to lift, so that the satellite antenna assembly is driven to swing by an angle, specifically, when the bedplate 8 is lifted, the transmission mechanism drives the antenna assembly to swing to point to a receiving direction, and when the bedplate 8 is lowered, the transmission mechanism drives the antenna assembly to swing to a horizontal direction until the antenna assembly reaches the horizontal position;
it is known that the received signal is better by adjusting the height to better cross the obstacle as the reception direction is closer to horizontal, and the blocking effect of the obstacle is limited as the reception direction is closer to vertical, in which case the height can be reduced to improve stability.
As another embodiment of the present invention, referring to fig. 2, the lifting mechanism includes a bidirectional screw 2 horizontally installed on the installation base 1, screw sleeves 5 symmetrically connected to two sides of the bidirectional screw 2, and a connecting rod 7 connecting the screw sleeves 5 and the platen 8;
in detail, the bidirectional screw 2 is rotatably arranged on the mounting base 1 through a bearing, one end of the connecting rod 7 is hinged on the threaded sleeve 5, and the other end of the connecting rod 7 is hinged on the bedplate 8, and when the bidirectional screw 2 rotates, the threaded sleeves 5 which are symmetrical on two sides are driven to move in the opposite direction or back to back, so that the connecting rods 7 on two sides are driven to drive the bedplate 8 to lift;
because the thread transmission has a self-locking function, the bedplate 8 can not drive the screw sleeve 5 to give way on the bidirectional screw rod 2 due to the self-weight problem.
As another embodiment of the present invention, in order to better drive the movement of the bidirectional screw 2 and improve the stability of the platen 8, a driving wheel 3 is fixed at the end of the bidirectional screw 2, and a crank 4 for driving the driving wheel 3 to rotate is fixed at an eccentric position of the outer edge of the driving wheel 3;
the driving wheel 3 and the bidirectional screw rod 2 are driven to rotate along with the swinging crank 4 in a circular motion, and the height of the bedplate 8 is adjusted.
A sleeve 9 penetrates and is fixed on one side, opposite to the driving wheel 3, of the bedplate 8, a vertical supporting rod 10 is arranged in the sleeve 9 in a sliding sleeved mode, the lower end of the vertical supporting rod is fixed to the installation base 1, a roller 6 in rolling connection with the installation base 1 is arranged below the screw sleeve 5 in a rotating mode, the bedplate 8 is guaranteed not to topple over towards two sides through mutual constraint of the sleeve 9 and the vertical supporting rod 10, and the roller 6 is arranged so that the screw sleeve 5 is driven by the mode of the bidirectional screw rod 2 to have a tendency of rotating along with the screw sleeve 5.
As another embodiment of the present invention, the antenna assembly includes a parabolic piece 16 movably disposed on the bedplate 8, a mounting frame 18 fixed at the center of the parabolic piece 16, and a feed source 17 mounted at the end of the mounting frame 18 for receiving signals, wherein the parabolic piece 16 is mounted on the bedplate 8 through a rotating base 19, and the antenna assembly can be swung around the bedplate 8 by rotating the rotating base 19 mounted on the bedplate 8, so as to adjust the inclination angle.
Referring to fig. 3 as a further embodiment of the present invention, the transmission mechanism includes a rack and pinion assembly mounted on the platen 8 and the vertical strut 10, and a rotating disc 14 connected to the rack and pinion assembly for rotating when the platen 8 is lifted, wherein the rack and pinion assembly is connected to the rotating disc 14 through a transmission member 13, and converts a longitudinal movement motion into a circular motion.
As another embodiment of the present invention, the rack and pinion assembly includes a spur rack 11 fixed on the vertical strut 10 and a gear 12 rotatably disposed on the platen 8, wherein the gear 12 is engaged with the spur rack 11, and a transmission member 13 is connected to the gear 12 in the rack and pinion assembly, when the platen 8 moves upward and rises, the gear 12 is driven by the fixed spur rack 11 to rotate clockwise, so that the rotating disk 14 is driven by the transmission member 13 to rotate clockwise, and similarly, when the platen 8 moves downward and falls, the gear 12 and the rotating disk 14 are driven by the fixed spur rack 11 to rotate counterclockwise.
As another embodiment of the present invention, a link rod is hinged at an eccentric position of a side wall of the turntable 14 for driving the adjusting lever 15 of the parabolic component 16 to swing, an end of the adjusting lever 15 is rotatably connected to a back surface of the parabolic component 16, the rotating turntable 14 is utilized to drive the adjusting lever 15 to drive the parabolic component 16 to swing, so that the higher the raised height of the antenna component is, the larger the inclination angle is, so as to better receive signals, and when the antenna component is at the lowest position, the antenna component is just at a horizontal position, and the whole structure is compact, does not occupy space, and is convenient to carry.
As still another embodiment of the present invention, a method for using a portable satellite communication antenna device includes the steps of:
positioning, namely fixing an installation base on a ground base, adjusting the direction of a parabolic piece and a signal transmission path, and ensuring that the swinging direction of the parabolic piece is aligned with the signal transmission direction;
fixing, namely drilling holes on the ground foundation, and fixing the holes with the ground through expansion screws or fixing bolts penetrating through holes at four corners of the mounting base, wherein the concrete fixing mode can be concrete welding or threaded connection, so that the base in the integral device is kept fixed;
step three, mounting, namely fixing the feed source at the center of the parabolic piece through a mounting rack, rotating the feed source to enable the feed source and the axis of the parabolic piece to be in the same straight line, and switching on a power supply to connect the feed source;
and step four, adjusting the direction, rotating the crank and the driving wheel to drive the bidirectional screw to rotate, adjusting the height of the bedplate, synchronously adjusting the inclination angle of the antenna assembly, testing the signal receiving good degree under the condition of switching on a power supply, and stopping rotating the crank and the driving wheel when the signal receiving meets the expected requirements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.