CN116632495A - Non-driven deployable buoy antenna for cross-medium aircraft - Google Patents

Non-driven deployable buoy antenna for cross-medium aircraft Download PDF

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Publication number
CN116632495A
CN116632495A CN202310644525.8A CN202310644525A CN116632495A CN 116632495 A CN116632495 A CN 116632495A CN 202310644525 A CN202310644525 A CN 202310644525A CN 116632495 A CN116632495 A CN 116632495A
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CN
China
Prior art keywords
cable
medium
antenna
slip ring
cross
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Pending
Application number
CN202310644525.8A
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Chinese (zh)
Inventor
张树新
朱文豪
彭斌
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Xidian University
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Xidian University
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Filing date
Publication date
Application filed by Xidian University filed Critical Xidian University
Priority to CN202310644525.8A priority Critical patent/CN116632495A/en
Publication of CN116632495A publication Critical patent/CN116632495A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/10—Telescopic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/20—Resilient mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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

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  • Details Of Aerials (AREA)

Abstract

The utility model discloses a non-driven expandable buoy antenna for a cross-medium aircraft, which comprises a shell, a floating part, a winding roll, a slip ring, a cable and a spiral spring, wherein the shell is arranged on the floating part; the winding roll, the slip ring, the cable and the scroll spring are arranged in the shell, the slip ring penetrates through the winding roll, one end of the slip ring extends out of the shell, the scroll spring is arranged in the winding roll, the cable is wound on the winding roll, one end of the cable is connected to the slip ring, and the other end of the cable extends out of the shell and is connected to the floating part. The antenna is regulated in the guide groove in the air stage of the medium-crossing aircraft, so that the medium-crossing aircraft is convenient to carry, the antenna is automatically released in the water stage of the medium-crossing aircraft and floats on the water surface, and the mobility and the confidentiality of the medium-crossing aircraft are not affected while the wireless signal exchange can be carried out.

Description

Non-driven deployable buoy antenna for cross-medium aircraft
Technical Field
The utility model belongs to the technical field of medium-crossing aircrafts, and particularly relates to a non-driven expandable buoy antenna for a medium-crossing aircrafts.
Background
The medium-crossing aircraft is novel equipment which can be compatible with underwater navigation and air flight functions and can repeatedly switch the water-air working state according to task requirements, has good concealment in the underwater state and stronger maneuverability in the air flight state, so that the medium-crossing aircraft has very wide prospect in future military and civil applications.
Reliable and robust cross-medium communication is a key to exchanging information between the cross-medium vehicle and operators. However, electromagnetic waves, particularly high frequency electromagnetic waves, are extremely severely attenuated underwater and hardly penetrate the water layer to reach the cross-medium craft.
The cross-medium aircraft antenna is easily limited by the volume and performance of the aircraft, the cross-medium aircraft cannot provide enough space to erect and fix a large antenna, only a vertical antenna with a simple form and a light weight can be selected, the working mode of the cross-medium aircraft is special, and the antenna capable of normally working in the air cannot work underwater.
Through searching, chinese patent application number 202121302353.9 provides a buoy antenna for an underwater unmanned aerial vehicle, the unmanned aerial vehicle has a large operation range in water, the transmission effect is good, but an electric driving part is arranged to increase the weight and the volume of the buoy antenna, and the energy consumption is increased.
The Chinese patent application number 202110085309.5 provides an amphibious multi-rotor unmanned aerial vehicle, the carried towing antenna also needs to be folded and unfolded under an electric control system, and the electric drive system not only consumes limited energy of the amphibious multi-rotor unmanned aerial vehicle, but also reduces the effective load capacity of the unmanned aerial vehicle.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model aims to provide a non-driven expandable buoy antenna for a medium-crossing aircraft, which is regulated in a guide groove in the air stage of the medium-crossing aircraft, is convenient for carrying the aircraft, is automatically released in the water stage of the medium-crossing aircraft, floats on the water surface, and can exchange wireless signals without affecting the maneuverability and the confidentiality of the medium-crossing aircraft.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a non-driven deployable buoy antenna for a cross-medium aircraft, comprising a housing 1, a float 2, a winding drum 3, a slip ring 4, a cable 5, and a spiral spring 6;
the winding roll 3, the slip ring 4, the cable 5 and the scroll spring 6 are arranged in the shell 1, the slip ring 4 penetrates through the winding roll 3, one end of the slip ring 4 extends out of the shell 1, the scroll spring 6 is arranged in the winding roll 3, the cable 5 is wound on the winding roll 3, one end of the cable is connected to the slip ring 4, and the other end of the cable extends out of the shell 1 and is connected to the floating part 2.
The floating part 2 is a wireless signal receiving and transmitting end for carrying out positive buoyancy floating, the cable 5 is connected to the bottom of the floating part 2, the floating part 2 is pulled by the cable 5 to be contained in a guide groove 111 outside the shell 11 when the medium-crossing aircraft is in the air or on the water surface, and the shell 1 is divided into the shell 11 and the shell cover 12.
The shape of the inner cavity of the guide groove 111 is matched with the shape of the bottom of the floating part 2, the floating part 2 is embedded in the guide groove 111 when the buoy antenna is wound, the size of the guide groove 111 is slightly larger than that of the floating part 2, sufficient space allowance is provided for accurately retracting the floating part 2, the requirement on the posture of the floating part 2 when the winding roll 3 pulls the floating part 2 back into the guide groove 111 is reduced, the antenna can continue to work when the medium-crossing aircraft is in an air flight state, at the moment, the floating part 2 is automatically pulled by the cable 5 and falls into a horn-shaped opening of the guide groove 111, the guide groove 111 limits the floating part 2 under the preset pulling force provided by the cable 5, and the guide groove 111 is used for regulating the posture of the floating part 2 and preventing adverse effects on the operation of the medium-crossing aircraft due to the unstable antenna position.
The floating part 2 comprises an antenna body 21, a buoyancy material 22 and a counterweight 23, wherein the antenna body 21 is a high-frequency wireless signal transmission antenna, the antenna body 21 is arranged on the buoyancy material 22 and has a certain length so as to extend out of the water surface, at least one antenna body 21 is arranged at the top of the buoyancy material 22, the counterweight 23 is arranged at the bottom of the buoyancy material 22, the buoyancy material 22 and the counterweight 23 are approximately concave conical in shape, are smooth in transition, have rotational symmetry around the axis, the buoyancy provided by the buoyancy material 22 is greater than the weight of the antenna body 21 and the counterweight 23 and the traction force of the cable 5, so that the floating part 2 is in a positive buoyancy state, and the weight of the counterweight 23 is greater than the weight of the antenna body 21 and the buoyancy material 22. So set up, make the focus of floating part 2 lower, can not empty easily when suffering the stormy waves influence, increased stability.
The spiral spring 6 is positioned at the inner side of the winding roll 3, two ends of the spiral spring 6 are respectively connected to the mounting seat of the shell 11 and the winding roll 3, and pulling the cable 5 drives the winding roll 3 and the spiral spring 6 to rotate and enables the spiral spring 6 to store potential energy.
Preferably, the spiral spring 6 pre-stores a certain potential energy, so that the spiral spring 6 has a pre-restoring capability and the cable 5 is pulled at any time.
The buoyancy of the floating part 2 is always larger than the tension provided by the spiral spring 6, so that the floating part 2 always floats on the water surface and can straighten the cable 5 which extends out of the winding roll 3.
The opening of the housing 1 is located at the lower part of the guiding groove 111, the cable 5 is extended, two rollers 112 are disposed at the opening, and the rollers 112 are disposed opposite to each other, so as to reduce friction between the cable 5 and the housing 1.
The slip ring 4 is a universal electric rotary connector for high-frequency signals, which is coaxially installed with the winding roll 3 and the housing 11 and penetrates through the winding roll 3 and the housing 11 along a rotation axis, the electric rotary connector is provided with a cylindrical rotary part 41 and a fixed part 42, the rotary part 41 and the fixed part 42 are in rotary fit, the fixed part 42 is fixedly connected on the housing 11 and extends out of the housing 11, and the rotary part 41 can only continuously and coaxially rotate for 360 degrees and simultaneously transmit high-frequency signals.
The winding roll 3 and the slip ring rotating part 41 stretch out of the shaft in interference fit, sealing is achieved, and therefore the slip ring rotating part 41 can be fixedly connected with the winding roll 3, the signal transmission cable 5 is wound on the outer side of the winding roll 3, the cable 5 penetrates through the winding roll 3 to be connected to the slip ring rotating part 41 and the floating part 2, and signals can be transmitted to the medium-crossing aircraft body through the antenna body 21, the cable 5 and the slip ring 4.
The slip ring fixing part 42 is slidably sleeved in the winding roll 3, so that the winding roll 3 can rotate around the slip ring fixing part 42, a cavity is formed between the slip ring rotating part 41 and the inside of the winding roll 3, a first sealing ring 31 and a second sealing ring 33 are embedded in the cavity, and a middle sealing ring groove 32 is formed between the two sealing rings to form dynamic sealing.
The middle sealing ring groove 32 and the cavity are internally provided with lubricating grease, the inner cavity is completely filled, the invasion of water is blocked, the first sealing ring 31 and the second sealing ring 33 are elastically abutted against the slip ring fixing part 42, the lubrication effect of the lubricating grease can reduce the friction between the winding roll 3 and the slip ring fixing part 42, and finally, smooth relative rotation can be carried out between the winding roll 3 and the shell 11, the first sealing ring 31 and the second sealing ring 33 can block the outflow of the lubricating grease outside the sealing of the slip ring 4, the loss of the lubricating grease after long-time use is reduced, and the maintenance cost is reduced.
The spiral spring 6 is made of a corrosion-resistant elastic material, and is prevented from being corroded by air and liquid, particularly seawater, which are exposed for a long time.
The utility model has the beneficial effects that:
the non-driven expandable buoy antenna for the cross-medium aircraft is suitable for occasions of underwater use of the cross-medium aircraft or other aircraft, the winding drum can quickly react with the floating or the submerging of the aircraft to pay out or retract a cable under the action of the spiral spring, the cable is always kept straight, and the situation that the cable floats in water at will to be knotted is avoided;
according to the non-driven expandable buoy antenna for the cross-medium aircraft, provided by the utility model, no electric driving device is needed, condition judgment or programming of a buoy antenna working program is not needed, in a water working state, the buoy antenna is automatically expanded under the action of buoyancy, a cable is stretched, the cable is automatically wound up by a winding roll when floating upwards or in the air, and an antenna part is stored in a guide groove, so that non-driven winding and unwinding of the cable and the antenna are realized, and additional mass and energy consumption brought by the electric driving device are avoided;
the non-driven expandable buoy antenna non-electric driving device for the cross-medium aircraft provided by the utility model has the advantages of extra mass, small volume, light weight and flexible and convenient installation, can be arranged on any small or large cross-medium aircraft or carrier of an underwater aircraft, and can realize exchange transmission of wireless signals on the premise of not affecting the stealth and maneuverability of the aircraft.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
FIG. 2 is a schematic front view of the present utility model with the cover removed.
Fig. 3 is a schematic side cross-sectional view of the present utility model.
Fig. 4 is a schematic diagram of two working states of the buoy antenna according to the utility model after winding and after unwinding. Fig. 4a shows the buoy antenna in the air, the buoyancy part is rolled up into the guiding groove, and fig. 4b shows the buoy antenna immersed in water, the buoyancy part is kept on the water surface under the action of buoyancy.
Fig. 5 is a schematic diagram of one manner in which the present utility model is applied to a cross-medium drone.
The reference numerals shown in fig. 1 to 3 are: the device comprises a shell 1, a shell 11, a guide groove 111, rollers 112, a shell cover 12, a floating part 2, an antenna body 21, a buoyancy material 22, a counterweight 23, a winding roll 3, a first sealing ring 31, a middle sealing ring groove 32, a second sealing ring 33, a sliding ring 4, a sliding ring rotating part 41, a sliding ring fixing part 42, a cable 5 and a spiral spring 6.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1-3, the present utility model provides a non-driven deployable buoy antenna for a cross-medium craft, comprising: the casing 1 comprises a shell 11 and a shell cover 12, and the winding roll 3, the slip ring 4, the cable 5 and the scroll spring 6 are arranged in the casing 1.
The floating part 2 is a wireless signal receiving and transmitting end for carrying out positive buoyancy floating, and is connected with the cable 5, when the medium-crossing aircraft is in the air or is positioned on the water surface, the floating part 2 is drawn and stored in the guide groove 111 (as shown in fig. 4 a) outside the shell 11 by the cable, the regulation activity can be realized, the floating part 2 can be prevented from being damaged by an air rotor wing of the medium-crossing aircraft, the medium-crossing aircraft is crashed, and the floating part 2 can continue to work when the medium-crossing aircraft is in an air flight stage.
The floating part 2 is provided with an antenna body 21, a buoyancy material 22 and a counterweight 23, wherein the antenna body 21 is a high-frequency wireless signal transmission antenna, the high-frequency wireless signal transmission antenna is arranged on the buoyancy material 22, at least one antenna body is arranged at the top of the buoyancy material 22, the counterweight 23 is arranged at the bottom of the buoyancy material 22, so that the gravity center of the buoy antenna is lower, the buoy antenna cannot easily topple over when being influenced by wind waves, and the stability of the buoy antenna during floating is improved.
Preferably, the floating part 2 has rotational symmetry, so that the requirement on the posture of the floating part 2 when the winding roll 3 pulls the floating part 2 back into the guide groove 111 can be reduced, the buoyancy material 22 of the floating part 2 and the balancing weight 23 approximately show a concave cone shape and are matched with the shape of the guide groove 111, the size of the guide groove 111 is slightly larger than that of the floating part 2, sufficient space allowance is provided for accurately retracting the floating part 2, the antenna can continue to work when the medium-crossing aircraft is in an air flight state, the guide groove 111 regulates the posture of the buoy antenna, and adverse effects on the operation of the medium-crossing aircraft due to the uncertainty of the position of the antenna are prevented.
Preferably, the buoyancy of the float 2 is always greater than the tension provided by the spiral spring 6, so that the float 2 always floats on the water surface, as shown in fig. 4b, and is able to straighten the cable 5 that has already extended out of the winding reel 3.
Preferably, the cable 5 is extended from the opening of the housing 1, and two rollers 112 are disposed at the opening to reduce friction between the cable and the housing.
The slip ring 4 is an electric rotary connector for high frequency signals, and has a rotary part 41 and a fixed part 42, the fixed part 42 is fixedly connected to the housing 11, and the rotary part 41 can be continuously rotated coaxially by 360 degrees only, and simultaneously transmits high frequency signals.
The winding roll 3 and the slip ring rotating part 41 stretch out of the shaft in interference fit to realize sealing, and therefore, the slip ring rotating part 41 can be fixedly connected with the winding roll 3, the signal transmission cable 5 is wound on the outer side of the winding roll 3, the cable 5 penetrates through the winding roll 3 to be connected to the slip ring rotating part 41 and the floating part 2, and signals can be transmitted to the medium-crossing aircraft body through the cable 5 and the slip ring 4 of the antenna body 21.
The slip ring fixing part 42 is sleeved in the outer ring of the winding roll 3, so that the winding roll 3 can rotate around the slip ring fixing part 42, a cavity is formed between the slip ring rotating part 41 and the inside of the winding roll 3, a first sealing ring 31 and a second sealing ring 33 are embedded in the outer ring, and a middle sealing ring groove 32 is formed between the two sealing rings to form dynamic sealing.
The middle sealing ring groove 32 and the cavity are internally provided with lubricating grease, the inner cavity is completely filled, the invasion of water is blocked, the sealing ring is elastically abutted against the inner shaft, the friction between the inner shaft and the outer ring can be reduced by the lubricating effect of the lubricating grease, smooth relative rotation can be carried out between the winding roll 3 and the shell 11, the first sealing ring 31 and the second sealing ring 33 can block the outflow of the lubricating grease outside the sealing of the slip ring 4, the loss of the lubricating grease after long-time use is reduced, and the maintenance cost is reduced.
The spiral spring 6 is made of corrosion-resistant elastic material, so that the spiral spring is prevented from being exposed to the corrosion of air and liquid, particularly seawater, for a long time;
the spiral spring 6 is positioned on the inner side of the winding roll 3, two ends of the spiral spring 6 are respectively connected to the mounting seat of the shell 11 and the winding roll 3, and pulling the cable 5 drives the winding roll 3 and the spiral spring 6 to rotate and enables the spiral spring 6 to store potential energy.
Preferably, the spiral spring 6 pre-stores a certain potential energy, so that the spiral spring 6 has a pre-restoring capability and the cable 5 is pulled at any time.
In one application mode of fig. 5, when the medium-crossing vehicle works in a water body and floats upwards or descends, the cable 5 is automatically straightened under the elasticity of the spiral spring 6, the floating part 2 is always positioned on the water surface, the antenna body 21 is ensured to be positioned at a section far away from the water surface, and a wireless signal is received by the floating part 2 and transmitted to the medium-crossing vehicle body through the cable 5. Thereby avoiding the problem that the wireless signal is blocked by the water body and expanding the underwater operation range of the cross-medium aircraft;
when the cross-medium vehicle needs to work towards deeper water, the cable 5 is pulled by the floating part 2, the winding drum 3 automatically releases the cable, and after the cross-medium vehicle straddles the water surface, the floating part 2 is stored.
The implementation principle of the embodiment is as follows:
the medium-crossing aircraft respectively operates in the air and in the water, when the medium-crossing aircraft operates in the air, the floating part 2 serves as a general antenna to transmit signals, when the medium-crossing aircraft operates in the water, the floating part 2 floats on the water surface, remote control signals are transmitted to the medium-crossing aircraft through the buoy antenna body 21, the cable 5 and the slip ring 4, return signals are transmitted to the operation terminal through the slip ring 4, the cable 5 and the buoy antenna body 21, and the problem of shielding of high-frequency wireless signals by the conductive water body can be effectively avoided;
meanwhile, the reachable depth of the cross-medium aircraft is not limited any more, so that the operation range of the cross-medium aircraft is greatly improved;
when the medium-crossing aircraft is in the air, the floating part 2 is accommodated in the guide groove 111 by the cable under the traction force provided by the spiral spring 6, when the medium-crossing aircraft is in water without people, the floating part 2 is pulled out by the buoyancy of the floating part 2, the medium-crossing aircraft continues to submerge, the spiral spring 6 is wound to store potential energy, the floating antenna 2 is always kept on the water surface, the winding roll 3 releases the cable 5 under the traction of the buoyancy, when the medium-crossing aircraft floats upwards, the winding roll 3 is driven by the potential energy stored by the spiral spring 6 to wind the cable, the buoyancy of the floating antenna 2 and the elasticity of the spiral spring 6 always pull the cable 5 in the process of submerging and floating, the cable winding is avoided, and finally, the floating part 2 is pulled and accommodated in the guide groove 111.

Claims (10)

1. A non-driven deployable buoy antenna for a cross-medium craft, characterized by comprising a housing (1), a float (2), a winding reel (3), a slip ring (4), a cable (5), a spiral spring (6);
winding roll (3), sliding ring (4), cable (5), spiral spring (6) settle in shell (1), and sliding ring (4) runs through winding roll (3), and shell (1) is stretched out to one end, and spiral spring (6) are located winding roll (3), and cable (5) twine in winding roll (3), and one end is connected to sliding ring (4), and shell (1) is stretched out to one end and is connected to floating portion (2).
2. A non-driven deployable buoy antenna for a cross-medium craft according to claim 1, characterized in that the float (2) is a wireless signal receiving and transmitting end with buoyancy material, floating positively, the cable (5) is connected to the bottom of the float (2), the float (2) will be pulled by the cable (5) to be received in a guiding groove (111) outside the housing (11) when the cross-medium craft is in the air or on the water, the housing (1) being divided into a housing (11) and a cover (12).
3. The non-driven deployable buoy antenna for a cross-medium aircraft according to claim 2, wherein the inner cavity of the guide groove (111) is in a shape matching with the bottom shape of the floating part (2), the floating part (2) is embedded in the guide groove (111) when the buoy antenna is rolled up, the guide groove (111) is slightly larger than the floating part (2) in size, sufficient space margin is provided for accurately retracting the floating part (2), the requirement on the posture of the floating part (2) when the winding roll (3) pulls the floating part (2) back into the guide groove (111) is reduced, the antenna can continue to operate when the cross-medium aircraft is in an air flight state, the floating part (2) is automatically pulled by a cable (5) and falls into a horn-shaped opening of the guide groove (111), and the guide groove (111) limits the floating part (2) under a preset pulling force provided by the cable (5) for regulating the posture of the floating part (2).
4. A non-driven deployable buoy antenna for a cross-medium craft according to claim 2, characterized in that the opening of the housing (1) is located below the guiding slot (111) for the extension of the cable (5), two rollers (112) are provided at the opening, the rollers (112) being arranged opposite each other for reducing friction between the cable (5) and the housing (1).
5. A non-driven deployable buoy antenna for a cross-medium craft according to claim 2, characterized in that the slip ring (4) is an electrical rotary connector for high frequency signals mounted coaxially with the reel (3), the housing (11) and extending through the reel (3), the housing (11) along a rotation axis, the electrical rotary connector having a cylindrical rotary part (41) and a stationary part (42), the rotary part (41) and the stationary part (42) being in a rotating fit, the stationary part (42) being fixedly connected to the housing (11) and extending out of the housing (11), the rotary part (41) being rotatable coaxially only for 360 degrees continuously while transmitting high frequency signals.
6. A non-driven deployable buoy antenna for a cross-medium craft according to claim 5, characterized in that the winding reel (3) is in interference fit with the extension shaft of the slip ring rotating part (41) to realize sealing, the slip ring rotating part (41) is fixedly connected with the winding reel (3), the signal transmission cable (5) is wound on the outer side of the winding reel (3), the cable (5) passes through the winding reel (3) to be connected to the slip ring rotating part (41) and the floating part (2), and the signal is transmitted to the cross-medium craft body by the antenna body (21) through the cable (5) and the slip ring (4).
7. The non-driven deployable buoy antenna for a cross-medium aircraft according to claim 6, wherein the slip ring fixing part (42) is slidably sleeved in the winding roll (3), the winding roll (3) can rotate around the slip ring fixing part (42), the slip ring rotating part (41) and the winding roll (3) form a cavity, a first sealing ring (31) and a second sealing ring (33) are embedded in the cavity, and a middle sealing ring groove (32) is formed between the two sealing rings to form a dynamic seal;
the middle sealing ring groove (32) and the cavity are internally provided with lubricating grease, the inner cavity is completely filled, the invasion of water is blocked, the first sealing ring (31), the second sealing ring (33) are elastically abutted against the slip ring fixing part (42), the lubricating effect of the lubricating grease can reduce the friction between the winding roll (3) and the slip ring fixing part (42), the winding roll (3) and the shell (11) can be smoothly rotated relatively finally, and the first sealing ring (31) and the second sealing ring (33) block the outflow of the lubricating grease outside the sealing of the slip ring (4) is realized.
8. A non-driven deployable buoy antenna for a cross-medium craft according to claim 1, characterized in that the float (2) comprises an antenna body (21), a buoyancy material (22) and a counterweight (23), the antenna body (21) is a high frequency wireless signal transmission antenna, mounted on the buoyancy material (22) and has a certain length to ensure that it protrudes out of the water surface, at least one antenna body (21) is arranged on top of the buoyancy material (22), the counterweight (23) is arranged at the bottom of the buoyancy material (22), the buoyancy material (22) and the counterweight (23) are approximately concave conical in shape, have a smooth transition with each other and have rotational symmetry about the axis, the buoyancy provided by the buoyancy material (22) is greater than the weight of the antenna body (21), the counterweight (23) and the traction of the cable (5), so that the float (2) is in a positive buoyancy state, and the weight of the counterweight (23) is greater than the weight of the antenna body (21) and the buoyancy material (22).
9. A non-driven deployable buoy antenna for a cross-medium craft according to claim 1, characterized in that the spiral spring (6) is located inside the winding reel (3), both ends are connected to the housing (11) mount and the winding reel (3) respectively, pulling the cable (5) will bring the winding reel (3) and the spiral spring (6) into rotation and cause the spiral spring (6) to store potential energy;
the spiral spring (6) pre-stores a certain potential energy, so that the spiral spring (6) has pre-restoring capability and the cable (5) is tensioned at any time.
10. A non-driven deployable buoy antenna for a cross-medium craft according to claim 1, characterized in that the buoyancy of the float (2) is always greater than the tension provided by the spiral spring (6), so that the float (2) always floats on the water surface and can straighten the cable (5) that has been extended out of the reel (3).
CN202310644525.8A 2023-06-01 2023-06-01 Non-driven deployable buoy antenna for cross-medium aircraft Pending CN116632495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310644525.8A CN116632495A (en) 2023-06-01 2023-06-01 Non-driven deployable buoy antenna for cross-medium aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310644525.8A CN116632495A (en) 2023-06-01 2023-06-01 Non-driven deployable buoy antenna for cross-medium aircraft

Publications (1)

Publication Number Publication Date
CN116632495A true CN116632495A (en) 2023-08-22

Family

ID=87641525

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310644525.8A Pending CN116632495A (en) 2023-06-01 2023-06-01 Non-driven deployable buoy antenna for cross-medium aircraft

Country Status (1)

Country Link
CN (1) CN116632495A (en)

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