Antenna

FIELD: physics.

SUBSTANCE: in antenna having a lower part and an upper part carrying a radio wave emitter and/or receiver, a bogie, the lower part has apparatus for sucking onto the horizontal surface blow the wheels. The said apparatus for sucking onto the horizontal surface is in form of a socket piece joined by a corrugation to a ventilator. The upper part can move vertically through a rope with a drive lying on the base of the lower part.

EFFECT: high stability.

3 cl, 3 dwg

 

The invention relates to techniques for radiation and reception of radio waves.

Known antenna, consisting of a lower part and an upper part carrying the emitter and/or receiver [1]. Perhaps the performance of the antenna based on a bogie; retractable top.

The objective of the invention is to improve the stability of the antenna.

The technical result is achieved by the fact that in the antenna containing the lower part and upper part, bearing the emitter and/or receiver, a wheeled cart, the lower part is equipped with a device for suction to the horizontal surface below the wheels. A device for suction to the horizontal surface in the form of a socket, the United Flexi hose with a fan. The upper part is made with possibility of vertical movement by means of a rope drive, located at the base of the lower part.

1 shows a mobile antenna, figure 2 shows a portion of a spring-loaded socket; figure 3 is a fragment of the socket with the vertical movement mechanism.

The antenna contains the lower part 1 is attached to its base wheel truck 2 and upper part 3, the carrier emitter 4 and/or the receiver (4) radio waves. The lower and the upper part is made of lightweight material, such as aluminum, resistant to atmospheric corrosion. The bottom is the part equipped with a device 5 day clinging to the horizontal surface, below the wheels. A device for suction to the horizontal surface in the form of a rigid hollow metal socket 6, the United stretchy Flexi hose 7 fan 8 driven, for example, by an electric motor, internal combustion engine. The bell in the largest cross-section has the shape of a circle, square or rectangle. The bottom perimeter of the socket is installed (attached) steel shell 9 and elastic (foam rubber) seal 10 or the air-filled rubber Luggage (not shown). The bell suspended on springs 11 to the frame 12 of the truck. You can attach the cowl to the frame of the truck by means of the mechanism 13 vertical movement, containing a screw 14 with a ball thrust bearing 15 mounted on the cowl. Shell through several motile (steel) link 16 is connected to the frame, a wheeled truck. For a temporary fix on the location of the antenna to the wheeled cart can be attached, at least two legs 17. The upper part of the antenna is made with possibility of vertical movement relative to its lower part by means of a rope 18 with the actuator located at the base of the lower part and having a rotating drum 19 for winding/twisting the rope.

The antenna in the "folded" state, that is, when lowered to the bottom of the top 1 frequent the 3, carrier emitter 4 and/or the receiver (4) radio waves, move to the place or places of temporary "Parking", where it is set on a horizontal surface asphalt concrete pavement of the road, airfield, a fixed platform located in the waters; ice (artificial, natural) ground, drifting in the sea ice fields; vehicles, such as four-axle railway platforms, barges, floating on the rivers.

For temporary fixing antenna on a horizontal surface below the wheels, use the legs 17. Followed by the extension (rise) of the upper part by means of a rope 18 spooled on the drum 19 of the actuator located at the base of the lower part. In this state, and in conditions of natural wind load antenna can work for a long time. In the case of higher wind loads or vibrations horizontal surface using a device 5 for clinging to the horizontal surface, which perform the following alternative actions.

1. Include the fan motor 8. While suspended on the springs 11 of the socket 6, which creates a negative pressure due to stretching of the corrugations 7 sticks seal 10 to the horizontal surface. When you turn off the fan negative pressure in the cavity RA the pipe is weakened, whereupon the springs raise it above the horizontal surface.

2. Through the mechanism of the 13 vertical movement, containing a screw 14 with a ball thrust bearing 15 mounted on the cowl, shall clamp the latter to the horizontal surface. Then include the fan, creating a vacuum in the cavity of the socket. Instead of the fan can be used vacuum pump. After switching off the fan (vacuum pump) the socket is separated from the horizontal surface by the vertical movement mechanism.

Because under negative air pressure, the socket having a shell 9, is connected by a link 16 to the frame 12 wheel truck 2, and is more "pressing" the wheeled trolley installed on her lower and upper parts of the antenna. And the higher the negative pressure in the cavity of the bell, the more "pressing" of the antenna to the horizontal surface.

This embodiment of the antenna ensures improved stability.

Sources of information

1. Polytechnical dictionary. CH. edit ISI. - M.: Soviet encyclopedia, 1976. - P.28 (Fig.4, senior Antenna).

1. The antenna containing the lower part and upper part, bearing the emitter and/or receiver, wheeled cart, characterized in that the lower part is equipped with a device for suction to g the horizontal surface, below the wheels.

2. The antenna according to claim 1, characterized in that the device for suction to the horizontal surface in the form of a socket, the United Flexi hose with a fan.

3. The antenna according to claim 1, characterized in that the upper part is made with possibility of vertical movement by means of a rope drive, located at the base of the lower part.



 

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