CN214849027U - Buoy antenna for underwater unmanned aerial vehicle - Google Patents

Abstract

The utility model provides a buoy antenna for underwater unmanned aerial vehicle, which comprises a buoy shell, a cable and at least one antenna body; the buoy shell is arranged in a hollow manner; one end of the antenna body is inserted into the buoy shell, and the other end of the antenna body extends towards the direction departing from the bottom of the buoy shell; one end of the cable is connected with the underwater unmanned aerial vehicle, the other end of the cable penetrates through the bottom wall of the buoy shell to be connected with the antenna body, and the antenna body is electrically connected with the underwater unmanned aerial vehicle through the cable; and a balancing weight with the weight larger than that of the antenna body is fixedly arranged at the bottom of the buoy shell. The utility model provides a buoy antenna for unmanned aerial vehicle under water, it can make unmanned aerial vehicle under water when having great operation scope, and its signal transmission effect is also better.

Description

Buoy antenna for underwater unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicle under water, more specifically relates to a buoy antenna for unmanned aerial vehicle under water.

Background

The underwater unmanned aerial vehicle is an important tool for ocean development, and along with the development and utilization of ocean resources, the underwater unmanned aerial vehicle develops rapidly, and great challenges are provided for underwater signal transmission of the unmanned aerial vehicle.

In chinese patent publication No. CN109591984A, an underwater unmanned aerial vehicle is disclosed, which comprises a main housing, a communication interface is provided at the tail of the main housing, and a cable for communication and power supply is plugged into the communication interface. Above-mentioned unmanned aerial vehicle among the prior art, when the operator is on the shore, its scope of movement under water obviously receives the restriction of cable length. When underwater wireless communication is adopted, the water body easily generates absorption loss to radio waves, and when the radio waves are transmitted to the air from the water, refraction loss is generated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the inconvenient problem of unmanned aerial vehicle's signal real-time transmission under water among the above-mentioned prior art, provide a buoy antenna for unmanned aerial vehicle under water, it can make unmanned aerial vehicle under water when having great operation scope, and its signal transmission effect is also better.

In order to solve the technical problem, the utility model discloses a technical scheme is: a buoy antenna for an underwater unmanned aerial vehicle comprises a buoy shell capable of floating on the water surface, a cable and at least one antenna body capable of being exposed out of the water surface; the buoy shell is arranged in a hollow manner; one end of the antenna body is inserted into the buoy shell, and the other end of the antenna body is electrically connected with a cable which is used for being electrically connected with the underwater unmanned aerial vehicle.

The utility model arranges the antenna body on the buoy shell which can float on the water surface, and the antenna body is electrically connected with the underwater unmanned aerial vehicle through the cable, so that the horizontal distance between the underwater unmanned aerial vehicle and an operator is not limited by the length of the cable when the underwater unmanned aerial vehicle operates; the antenna body floats on the water surface to receive and transmit signals, so that the problem of poor signal transmission effect caused by signal transmission under water is solved; the buoy shell ensures that the antenna body can be exposed out of the water, and can also protect the antenna body from contacting with the water, so that adverse effects of poor signal transmission effect, corrosion of the antenna body and the like caused by the contact of the antenna body and the water are prevented.

Further, the buoy housing comprises a buoy top shell and a buoy bottom shell; the buoy top shell is detachably connected with the buoy bottom shell; the antenna body is inserted on the top shell of the buoy, and the cable penetrates through the bottom wall of the bottom shell of the buoy; the bottom of the buoy bottom shell is provided with a balancing weight; and a first sealing ring is embedded at the joint of the buoy bottom shell and the buoy top shell.

Further, the middle part of the bottom wall of the buoy bottom shell is convex towards the direction departing from the buoy top shell; the balancing weight is located at the middle position of the inner bottom wall of the buoy bottom shell.

Further, the underwater unmanned aerial vehicle further comprises a winding device, wherein the winding device comprises a wire coil and a cabin body connected with the underwater unmanned aerial vehicle; the wire coil is rotatably arranged on the top side of the cabin body; the cable is coiled in the wire coil; one end of the cable penetrates through the bottom of the wire coil to be connected with the underwater unmanned aerial vehicle, and the other end of the cable penetrates through the top of the wire coil to be connected with the antenna body; and a driving piece for driving the wire coil to rotate is arranged in the cabin body.

Further, the wire coil comprises an upper coil body and a lower coil body, the lower coil body is fixedly arranged at the top of the cabin body, and the upper coil body is rotatably arranged at the top side of the lower coil body; the cable coil is arranged between the upper coil body and the lower coil body; a first groove is formed in the center of the top wall of the lower tray body, a second groove is formed in the center of the bottom wall of the upper tray body, and the first groove and the second groove are arranged oppositely; a bearing is arranged between the first groove and the second groove, the inner wall of the bearing is fixedly connected with the side wall of the first groove, and the outer wall of the bearing is fixedly connected with the side wall of the second groove; and a second sealing ring is arranged at the position where the lower disc body is connected with the upper disc body, and the second sealing ring is positioned on the peripheral side of the bearing.

Furthermore, a through opening is formed in the middle of the first groove of the lower disc body, and the bearing sleeve is arranged on the outer side of the through opening; the side wall of the upper tray body, which is far away from the lower tray body, is provided with an accommodating groove, and the accommodating groove is arranged opposite to the through opening; the holding tank internal fixation is provided with the connecting block, the output of driving piece passes through the through-hole and runs through diapire and the connecting block fixed connection of holding tank.

Furthermore, a plug is arranged on the accommodating groove and covers one end of the connecting block, which is far away from the lower disc body; and a third sealing ring used for sealing a gap between the plug and the bottom wall of the accommodating groove is arranged on the side wall of the plug facing the lower tray body.

Furthermore, at least one hollow opening is formed in the upper tray body and the lower tray body, and the hollow opening is located on the side wall, close to the lower tray body, of the upper tray body.

Furthermore, a through pipe is fixedly arranged at the edge position of the upper tray body, and one end of the through pipe extends towards the direction departing from the lower tray body; the buoy shell is placed at one end, far away from the upper disc body, of the through line pipe, and the cable penetrates through the through line pipe.

Furthermore, a bracket is arranged at one end of the through pipe, which is far away from the upper tray body, and the cable penetrates through the bottom wall of the bracket; the radial sectional area of the bracket increases progressively in a direction away from the upper tray body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the buoy shell floats on the water surface, the antenna body is arranged on the buoy shell, the antenna body is electrically connected with the underwater unmanned aerial vehicle through a cable, and signals received by the antenna body are transmitted to the underwater unmanned aerial vehicle through the cable; the signal sent by the underwater unmanned aerial vehicle is transmitted to the antenna body through the cable and is sent to an operator through the antenna body, so that the problem of poor signal transmission effect caused by signal transmission through a water body is solved;

2. the horizontal distance between the underwater unmanned aerial vehicle and an operator is not limited by the length of a cable, so that the operation range of the underwater unmanned aerial vehicle can be expanded under the condition of ensuring good signal transmission;

3. the winding device can be used for accommodating redundant cables, and the phenomenon that the overlong cables influence underwater actions of the underwater unmanned aerial vehicle is prevented.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a buoy antenna for an underwater unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is an exploded view of the winding device in the embodiment of the present invention;

fig. 3 is a cross-sectional view of a wire coil and a buoy housing in an embodiment of the invention.

The attached drawings are marked as follows: 1. a float housing; 11. a buoy top shell; 12. a buoy bottom shell; 2. a cable; 3. an antenna body; 4. a balancing weight; 5. a first seal ring; 6. a winding device; 61. wire coils; 611. an upper tray body; 612. a lower tray body; 613. a first trench; 614. a second trench; 615. a bearing; 62. a cabin body; 621. a convex ring; 7. a support; 8. a drive member; 9. a second seal ring; 10. a through port; 13. connecting blocks; 14. a plug; 15. a third seal ring; 16. a fourth seal ring; 17. opening a hollow; 18. a through pipe; 19. a bracket; 20. and (6) accommodating the tank.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Example (b):

referring to fig. 1 to 3, an embodiment of a buoy antenna for an underwater unmanned aerial vehicle according to the present invention includes a buoy housing 1 capable of floating on a water surface, a cable 2, and at least one antenna body 3; the buoy shell 1 is arranged in a hollow manner; one end of the antenna body 3 is inserted into the buoy housing 1, and the other end extends towards the direction departing from the bottom of the buoy housing 1; one end of the cable 2 is connected with the underwater unmanned aerial vehicle, the other end of the cable penetrates through the bottom wall of the buoy shell 1 to be connected with the antenna body 3, and the antenna body 3 is electrically connected with the underwater unmanned aerial vehicle through the cable 2; the bottom of the buoy housing 1 is fixedly provided with a balancing weight 4.

Specifically, the antenna bodies 3 are cylindrical, and in this embodiment, the number of the antenna bodies 3 is two, and the two antenna bodies 3 are vertically fixed to penetrate through the top wall of the buoy housing 1 by adhesion. The two antenna bodies 3 are symmetrically distributed by taking the radial line of the top wall of the buoy housing 1 as a symmetry axis, so that the buoy housing 1 can be more stable when floating on the water surface. The cable 2 passes the diapire of buoy housing 1 and is connected with two antenna body 3, and the other end of cable 2 is connected with unmanned aerial vehicle under water to make antenna body 3 and unmanned aerial vehicle under water realize the electricity through cable 2 and be connected. The material of balancing weight 4 can be the material that density is greater than water, and the preferred 316 stainless steel in this embodiment to can prevent to take place balancing weight 4 and lead to the problem of harmful effects because of sea water corrodes.

Due to the arrangement, when the underwater unmanned aerial vehicle works, the horizontal distance between the underwater unmanned aerial vehicle and an operator is not limited by the length of the cable 2; and the antenna body 3 floats on the water surface to receive and transmit signals, so that the problem of poor signal transmission effect caused by signal transmission under water is avoided. The counterweight 4 with the mass larger than that of the antenna body 3 is arranged at the bottom of the buoy housing 1, so that the bottom of the buoy housing 1 can be kept in an underwater state, and the part of the antenna body 3 extending out of the buoy housing 1 can be exposed out of the water.

In one embodiment, the buoy housing 1 comprises a buoy top shell 11 and a buoy bottom shell 12; the buoy top shell 11 is detachably connected with the buoy bottom shell 12; the antenna body 3 is inserted on the buoy top shell 11, the cable 2 penetrates through the bottom wall of the buoy bottom shell 12, and the counterweight 4 is positioned at the bottom of the buoy bottom shell 12; the side wall of the buoy bottom shell 12, which is contacted with the buoy top shell 11, is embedded with a first sealing ring 5.

Specifically, the top float shell 11 is cylindrical, the top wall and the bottom wall of the bottom float shell 12 are both circular, and the top wall of the bottom float shell 12 and the bottom wall of the top float shell 11 have the same shape. The cable 2 coaxially penetrates through the bottom wall of the buoy bottom shell 12 to be connected with the antenna body 3. The bottom wall of the buoy top shell 11 is abutted to the top wall of the buoy bottom shell 12, and the buoy top shell 11 is connected with the buoy bottom shell 12 through bolts, so that the buoy top shell 11 is detachably connected with the buoy bottom shell 12. The first sealing ring 5 is embedded on the top wall of the buoy bottom shell 12 in the circumferential direction, and the first sealing ring 5 is located between the bottom wall of the buoy top shell 11 and the top wall of the buoy bottom shell 12.

With this arrangement, the user can separate the top float shell 11 from the bottom float shell 12, thereby facilitating work to be performed on the inside of the float housing 1, such as a problem of loose connection between the repair cable 2 and the antenna body 3, a problem of loose repair of the antenna body 3, and the like. The first sealing ring 5 can increase the sealing performance of the buoy housing 1 and reduce the probability that water flows into the interior of the buoy housing 1 from the gap between the buoy top shell 11 and the buoy bottom shell 12.

In one embodiment, the middle portion of the bottom wall of the bottom float shell 12 is convex in a direction away from the top float shell 11; the counterweight 4 is positioned inside the buoy shell 1, and the counterweight 4 is positioned in the middle position of the inner bottom wall of the buoy bottom shell 12; the cable 2 is arranged at the middle position of the bottom wall of the buoy bottom shell 12 in a penetrating mode, and the cable 2 penetrates through the balancing weight 4.

Specifically, the float bottom 12 is cylindrical, the bottom wall of the float bottom 12 is convex in a direction away from the float top 11, and the area of the bottom wall of the float bottom 12 is smaller than that of the top wall. The balancing weight 4 is circular, the balancing weight 4 is fixed on the inner bottom wall of the buoy bottom shell 12 through bonding, the balancing weight 4 and the bottom wall of the buoy bottom shell 12 are coaxially arranged, and the cable 2 penetrates through the centers of the buoy bottom shell 12 and the balancing weight 4 to be connected with the antenna body 3.

So set up for the focus of buoy housing 1 is lower, thereby has increased the stability when buoy housing 1 floats on the surface of water, when making buoy housing 1 meet the stormy waves on the surface of water, can not overturn easily.

In one embodiment, the underwater unmanned aerial vehicle further comprises a winding device 6, wherein the winding device 6 comprises a wire coil 61 and a cabin 62 connected with the underwater unmanned aerial vehicle; the wire coil 61 comprises an upper disk body 611 and a lower disk body 612, the lower disk body 612 is fixedly arranged at the top of the cabin 62, and the upper disk body 611 is rotatably arranged at the top side of the lower disk body 612; the cable 2 is coiled between the upper tray body 611 and the lower tray body 612; one end of the cable 2 penetrates through the lower disc body 612 to be connected with the underwater unmanned aerial vehicle, and the other end of the cable penetrates through the upper disc body 611 to be connected with the antenna body 3; the cabin 62 is provided with a driving member 8 for driving the upper disc 611 to rotate.

Specifically, the capsule 62 is rectangular parallelepiped, a through opening is opened in a top wall of the capsule 62, and a top wall of the capsule 62 on a periphery side of the through opening extends toward the lower tray 612 to form a convex ring 621. The cabin 62 is provided with a driving member 8 through a bracket 7, and in this embodiment, the driving member 8 may be a motor. The bracket 7 is shaped like Contraband, the driving member 8 is located between two opposite side walls of the bracket 7, the opening of the bracket 7 faces the lower tray 612, and the top wall of the bracket 7 abuts against the bottom wall of the lower tray 612 and is fixed on the bottom wall of the lower tray 612 by screws. The lower tray body 612 is disc-shaped, the bottom wall of the lower tray body 612 is abutted against a convex ring 621 on the top wall of the cabin 62, and the lower tray body 612 is fixed with the cabin 62 through screws. The bottom wall of the lower tray body 612 is embedded with a fourth sealing ring 16, and the fourth sealing ring 16 is located at a position where the bottom wall of the lower tray body 612 is abutted to the convex ring 621 of the tank body 62, so that the sealing performance of the tank body 62 is improved, and water is prevented from entering the tank body 62 from a gap between the lower tray body 612 and the convex ring 621. The upper disc 611 is annular and is disposed coaxially with the lower disc 612. The axial side wall area of the upper tray body 611 is larger than that of the lower tray body 612, and the edge of the axial side wall of the upper tray body 611 is bent towards the lower tray body 612, so that the cable 2 wound between the upper tray body 611 and the lower tray body 612 can be limited and blocked, and the cable 2 is prevented from scattering from an edge gap of the drum 61. One end of the cable 2 penetrates through the lower disc body 612 from the position, close to the center, of the axial side wall of the lower disc body 612 and penetrates through the cabin 62 to be connected with the underwater unmanned aerial vehicle, and the other end of the cable penetrates out of the edge of the axial side wall of the upper disc body 611 to be connected with the buoy housing 1.

So set up, when unmanned aerial vehicle carries out the operation in the position department that is close to the surface of water under water, the length of cable 2 will be greater than the distance between unmanned aerial vehicle and the buoy housing 1 under water, can start driving piece 8 this moment, driving piece 8 drive upper disc body 611 rotates, along with the rotation of upper disc body 611, cable 2 will be rolled up to between upper disc body 611 and the lower disc body 612 to avoided the cable 2 of overlength to cause harmful effects to unmanned aerial vehicle's operation under water. When unmanned aerial vehicle need move towards darker underwater operation under water, can start driving piece 8 again, disk body 611 antiport in the driving piece 8 drive for cable 2 stretches out from drum 61 in, makes cable 2 length between buoy housing 1 and the coiling mechanism 6 obtain the extension.

In one embodiment, a first groove 613 is formed in the center of the top wall of the lower tray body 612, a second groove 614 is formed in the center of the bottom wall of the upper tray body 611, and the first groove 613 and the second groove 614 are disposed opposite to each other; a bearing 615 is arranged between the first groove 613 and the second groove 614, the inner wall of the bearing 615 is fixedly connected with the side wall of the first groove 613, and the outer wall of the bearing 615 is fixedly connected with the side wall of the second groove 614; the side wall of the upper disc body 611 toward the lower disc body 612 contacts the side wall of the lower disc body 612 toward the upper disc body 611 on the peripheral side of the second groove 614 on the peripheral side of the first groove 613, and the side wall of the lower disc body 612 is provided with a second seal ring 9 at a position contacting the upper disc body 611, the second seal ring 9 being located on the peripheral side of the bearing 615.

Specifically, the center of the bottom wall of the upper disc 611 is protruded toward the lower disc 612, the center of the top wall of the lower disc 612 is protruded toward the upper disc 611, and the protrusion of the bottom wall of the upper disc 611 is in contact with the protrusion of the top wall of the lower disc 612, so that a gap for winding the cable 2 can be formed between the upper disc 611 and the lower disc 612. The top wall of the lower tray body 612 is coaxially provided with a first groove 613 at a protrusion, the bottom wall of the upper tray body 611 is coaxially provided with a second groove 614 at a protrusion, and the first groove 613 and the second groove 614 are coaxially arranged. In this embodiment, the bearing 615 is a deep groove ball bearing 615. In this embodiment, the outer wall of the bearing 615 is in interference connection with the inner wall of the second groove 614, and the inner wall of the bearing 615 is in interference connection with the inner wall of the first groove 613, so that the upper disc 611 can rotate on the top side of the lower disc 612. The second seal ring 9 is fitted to the top side of the lower disk 612, and the second seal ring 9 is located on the outer peripheral side of the first groove 613 and is disposed coaxially with the first groove 613. The second seal ring 9 can prevent water from entering the cabin 62 from the gap between the upper disc 611 and the lower disc 612.

By such arrangement, the upper disc body 611 can freely and smoothly rotate, and meanwhile, the sealing performance of the cabin 62 is maintained, and the water body is prevented from damaging the driving piece 8 in the cabin 62.

In one embodiment, the lower disc 612 has a through opening 10 at a middle position of the first groove 613, and the bearing 615 is located on a peripheral side of the through opening 10; the side wall of the upper tray body 611, which is away from the lower tray body 612, is provided with an accommodating groove 20, and the accommodating groove 20 is arranged opposite to the through opening 10; holding tank 20 internal fixation is provided with connecting block 13, and the output of driving piece 8 passes through mouthful 10 and runs through holding tank 20's diapire and connecting block 13 fixed connection.

Specifically, the through port 10 is circular and is disposed coaxially with the first groove 613. The middle position of the top wall of the upper disc body 611 is convex towards the direction departing from the lower disc body 612, the receiving groove 20 is cylindrical and is located at the convex position of the top wall of the upper disc body 611, and the receiving groove 20 and the second groove 614 are coaxially arranged. The bottom of connecting block 13 is discoid, and the top is cylindricly, and the diapire of connecting block 13 and the diapire looks butt of holding tank 20, and the diapire of connecting block 13 passes through a plurality of screws to be fixed on the diapire of holding tank 20. The output shaft of the driving part 8 coaxially passes through the through port 10 and the bottom wall of the accommodating groove 20 and penetrates through the bottom wall of the connecting block 13. In this embodiment, the output shaft of the driving member 8 is fixedly connected to the connecting block 13 by screws.

So set up, the output shaft axial of driving piece 8 rotates, and pivoted output shaft drives connecting block 13 axial and rotates, and connecting block 13 drives disk body 611 axial rotation promptly.

In one embodiment, a plug 14 is installed in the receiving groove 20, and the plug 14 covers an end of the connecting block 13 facing away from the lower disc 612; and a third sealing ring 15 for sealing a gap between the plug 14 and the bottom wall of the accommodating groove 20 is mounted on the side wall of the plug 14 facing the lower tray body 612.

Specifically, the plug 14 has a cylindrical shape, and in the present embodiment, the outer wall of the plug 14 and the inner wall of the housing groove 20 are preferably screwed together, so that the sealing property when the plug 14 closes the housing groove 20 can be improved. The end of the plug 14 facing the lower tray 612 is open and hollow, so that the plug 14 can cover the connecting block 13. A third sealing ring 15 is embedded on the bottom wall of the plug 14.

So set up, end cap 14 can prevent that the water from getting into holding tank 20 and producing the damage to the output shaft of connecting block 13 and driving piece 8, also can prevent that the water from getting into cabin body 62 through the gap between holding tank 20 diapire and the output shaft of driving piece 8. The third sealing ring 15 further improves the plugging performance of the plug 14, and can plug the gap between the plug 14 and the bottom wall of the accommodating groove 20.

In one embodiment, the sidewall of the upper tray body 611 and the lower tray body 612 close to each other is opened with at least one opening 17 at a position far from the cabin 62.

Specifically, eight fan-shaped openings 17 are uniformly formed in the top wall of the upper disc 611 around the receiving groove 20, and eight fan-shaped openings 17 are uniformly formed in the top wall of the lower disc 612 around the through hole 10.

So set up, when drum 61 floats or dive along with unmanned aerial vehicle under water, fretwork mouth 17 can reduce the resistance when drum 61 removes to reduce unmanned aerial vehicle's under water energy consumption.

In one embodiment, a through pipe 18 is fixedly arranged at the edge position of the upper disc body 611, and one end of the through pipe 18 extends towards the direction away from the lower disc body 612; the buoy housing 1 is placed at one end of the through pipe 18 far away from the upper disc 611, and the cable 2 is arranged in the through pipe 18 in a penetrating mode.

Specifically, in the present embodiment, the through-wire tube 18 is integrally formed with the upper disc body 611. The through-wire tube 18 is vertically arranged at the edge of the upper disc body 611, and the through-wire tube 18 is communicated with the middle gap of the wire coil 61.

With this arrangement, the cable guide 18 is provided at the edge of the upper tray body 611, and the cable 2 can be guided, so that the cable 2 can enter the drum 61 along the edge of the upper tray body 611 during the winding process, and the cable 2 is prevented from being scattered or wound into a lump during the unwinding and winding processes.

In one embodiment, a bracket 19 is arranged at one end of the through pipe 18 far away from the upper disc body 611, and the cable 2 penetrates through the bottom wall of the bracket 19; the radial cross-sectional area of the bracket 19 increases in a direction away from the upper disc 611.

In particular, the bracket 19 is flared and the bracket 19 is coaxially arranged at the end of the conduit 18 facing away from the upper disc 611, in this embodiment the bracket 19 is bonded to the conduit 18.

So set up, when the whole rolling of cable 2 to drum 61 in, buoy housing 1 can be placed on bracket 19, is convenient for settle buoy housing 1, and the technical staff of being convenient for carries the utility model discloses remove.

The implementation principle of the embodiment is as follows: the underwater unmanned aerial vehicle works in a water body, the buoy shell 1 floats on the water surface, signals of the underwater unmanned aerial vehicle are transmitted to the antenna body 3 through the cable 2 and are sent to an operation terminal of an operator through the antenna body 3, the signals sent by the operator are received by the antenna body 3 and are transmitted to the underwater unmanned aerial vehicle through the cable 2, and therefore the problem that the signal transmission effect is poor due to the fact that the signals are transmitted through the water body is solved;

meanwhile, the horizontal distance between the underwater unmanned aerial vehicle and an operator is not limited by the length of the cable 2, so that the operation range of the underwater unmanned aerial vehicle is enlarged under the condition of ensuring good signal transmission.

When unmanned aerial vehicle carries out the operation in the position department that is close to the surface of water under water, the length of cable 2 will be greater than the distance between unmanned aerial vehicle and the buoy housing 1 under water, can start driving piece 8 this moment, and disk body 611 rotates in the driving of driving piece 8 drive, and along with the rotation of last disk body 611, cable 2 will be rolled up to between disk body 611 and the lower disk body 612 to avoided the cable 2 of overlength to cause harmful effects to unmanned aerial vehicle's operation under water. When unmanned aerial vehicle need move towards darker underwater operation under water, can start driving piece 8 again, disk body 611 antiport in the driving piece 8 drive for cable 2 stretches out from drum 61 in, makes cable 2 length between buoy housing 1 and the coiling mechanism 6 obtain the extension.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The buoy antenna for the underwater unmanned aerial vehicle is characterized by comprising a buoy shell (1) capable of floating on the water surface, a cable (2) used for being electrically connected with the underwater unmanned aerial vehicle, and a plurality of antenna bodies (3) capable of being exposed out of the water surface; the buoy shell (1) is arranged in a hollow manner; one end of the antenna body (3) is inserted into the buoy shell (1), and the other end of the antenna body is electrically connected with the cable (2).

2. Buoy antenna for underwater unmanned aerial vehicles according to claim 1, characterized in that the buoy housing (1) comprises a buoy top shell (11) and a buoy bottom shell (12); the buoy top shell (11) is detachably connected with the buoy bottom shell (12); the antenna body (3) is inserted on the buoy top shell (11), and the cable (2) penetrates through the bottom wall of the buoy bottom shell (12); the bottom of the buoy bottom shell (12) is provided with a balancing weight (4); and a first sealing ring (5) is embedded at the joint of the buoy bottom shell (12) and the buoy top shell (11).

3. Buoy antenna for underwater unmanned aerial vehicle according to claim 2, characterized in that the middle of the bottom wall of the buoy bottom shell (12) is convex towards the direction away from the buoy top shell (11); the balancing weight (4) is located at the middle position of the inner bottom wall of the buoy bottom shell (12).

4. Buoy antenna for underwater unmanned aerial vehicles according to any of claims 1-3, further comprising a reel (6), the reel (6) comprising a wire coil (61) and a cabin (62) connected to the underwater unmanned aerial vehicle; the wire coil (61) is rotatably arranged on the top side of the cabin body (62); the cable (2) is coiled in the wire coil (61); one end of the cable (2) penetrates through the bottom of the wire coil (61) to be connected with the underwater unmanned aerial vehicle, and the other end of the cable penetrates through the top of the wire coil (61) to be connected with the antenna body (3); and a driving piece (8) for driving the wire coil (61) to rotate is arranged in the cabin body (62).

5. The buoy antenna for underwater unmanned aerial vehicle of claim 4, characterized in that the wire coil (61) comprises an upper disk body (611) and a lower disk body (612), the lower disk body (612) is fixedly arranged at the top of the cabin body, and the upper disk body (611) is rotatably arranged at the top side of the lower disk body (612); the cable (2) is coiled between the upper disc body (611) and the lower disc body (612); a first groove (613) is formed in the center of the top wall of the lower tray body (612), a second groove (614) is formed in the center of the bottom wall of the upper tray body (611), and the first groove (613) and the second groove (614) are arranged oppositely; a bearing (615) is arranged between the first groove (613) and the second groove (614), the inner wall of the bearing (615) is fixedly connected with the side wall of the first groove (613), and the outer wall of the bearing (615) is fixedly connected with the side wall of the second groove (614); and a second sealing ring (9) is arranged at the position where the lower disc body (612) is connected with the upper disc body (611), and the second sealing ring (9) is positioned on the peripheral side of the bearing (615).

6. The buoy antenna for the underwater unmanned aerial vehicle of claim 5, wherein the lower disc body (612) is provided with a through opening (10) at a middle position of the first groove (613), and the bearing (615) is sleeved outside the through opening (10); an accommodating groove (20) is formed in the side wall, away from the lower disc body (612), of the upper disc body (611), and the accommodating groove (20) is opposite to the through opening (10); holding tank (20) internal fixation is provided with connecting block (13), the output of driving piece (8) passes through mouth (10) and runs through the diapire and the connecting block (13) fixed connection of holding tank (20).

7. Buoy antenna for underwater unmanned aerial vehicle according to claim 6, characterized in that a plug (14) is mounted on the receiving groove (20), the plug (14) covering the end of the connection block (13) facing away from the lower disc (612); and a third sealing ring (15) used for sealing a gap between the plug (14) and the bottom wall of the accommodating groove (20) is arranged on the side wall of the lower tray body (612) of the plug (14).

8. The buoy antenna for the underwater unmanned aerial vehicle of claim 5, wherein at least one hollow-out opening (17) is formed in the upper disc body (611) and the lower disc body (612), and the hollow-out opening (17) is formed in a side wall, close to each other, of the upper disc body (611) and the lower disc body (612).

9. The buoy antenna for the underwater unmanned aerial vehicle of claim 5, characterized in that a through pipe (18) is fixedly arranged at an edge position of the upper disc body (611), and one end of the through pipe (18) extends towards a direction away from the lower disc body (612); the buoy shell (1) is placed at one end, far away from the upper disc body (611), of the through pipe (18), and the cable (2) penetrates through the through pipe (18).

10. Buoy antenna for underwater unmanned aerial vehicle according to claim 9, characterized in that the end of the through pipe (18) remote from the upper disc (611) is provided with a bracket (19), the cable (2) passing through the bottom wall of the bracket (19); the radial cross-sectional area of the bracket (19) increases in a direction away from the upper disc body (611).

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