An antenna assembly for high-dynamic UAV communication

Abstract

The present invention discloses an antenna assembly for communication based on a high-dynamic unmanned aerial vehicle, comprising an antenna body arranged on a unmanned aerial vehicle, wherein two antenna bodies are provided, and the two antenna bodies are respectively located on both sides of the unmanned aerial vehicle, a rotating shell with a spherical shape and a hollow interior is installed at the bottom of the antenna body, a fixing plate is provided on both sides of the antenna body, and an annular reset mechanism is provided on the fixing plate for maintaining the antenna body in a vertical position for communication through the rotating shell. This antenna assembly for communication based on a high-dynamic unmanned aerial vehicle has a rotating shell provided at the bottom end of the antenna body, and the rotation can be rotated relative to the supporting shell, and an annular reset mechanism is provided on the fixing plate. When the antenna body is rotated by a large wind force, the annular reset mechanism can rotate the antenna body to its original position after the antenna body is rotated by the wind force, thereby further realizing the function of the antenna body to perform stable signal transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an antenna assembly for high-dynamic UAV communications. Background Art

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aerial vehicles controlled by radio remote control and self-contained programmable controls. Due to their maneuverability, rapid response, unmanned flight, and minimal operational requirements, UAVs are widely used in agriculture, exploration, photography, border patrol, and other fields.

[0003] Currently, in order to achieve communication performance, existing drones are equipped with antennas on both the drone and the corresponding remote controller. To ensure normal image and text transmission, the antennas are vertically installed on the drones. However, the antenna components on existing drones have the following problems:

[0004] 1. The antenna is connected in a hinged manner. This connection method is designed to facilitate adjustment of the antenna's communication angle. However, long-term use can easily cause the connection between the antenna and the drone to become loose.

[0005] 2. When a drone flies at high altitude, it is subject to strong wind force. If the connection between the antenna and the drone is tight, the antenna may be damaged. If the connection between the drone and the antenna is loose, the antenna may not be able to achieve good communication. According to the existing patent application number: CN202010515805.5, a drone antenna fixing structure and a drone are disclosed. In this patent application, although the antenna is set so that the antenna can slide on the fixing part under the action of strong wind force, on the one hand, it is easy to cause the antenna to detach from the fixing part. On the other hand, when the antenna is rotated to form a large angle with the connecting part, the antenna cannot be reset well, further affecting the transmission of the signal. For this reason, we propose an antenna assembly for high-dynamic drone communication. Summary of the Invention

[0006] The purpose of the present invention is to provide an antenna assembly for high-dynamic UAV communication to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: an antenna assembly for high-dynamic UAV communication, comprising an antenna body mounted on the UAV, wherein two antenna bodies are provided, one on each side of the UAV, and a spherical rotating shell with a hollow interior is mounted on the bottom of the antenna body. Fixed plates are provided on both sides of the antenna body, and the fixed plates are provided with an annular reset mechanism that uses the rotating shell to keep the antenna body in a vertical position for communication.

[0008] The bottom of the rotating shell is provided with a through hole communicating with its internal cavity, the through hole is provided with a support shell, and the support shell is provided with an adjustment mechanism for adjusting the tightness of the rotating shell;

[0009] The fixing plate is provided with a driving mechanism for driving the adjusting mechanism, and the driving mechanism operates at a relatively high wind speed.

[0010] Preferably, a plurality of contact plates are provided at equal distances on the outer side of the rotating shell near the through hole, and contact baffles are fixedly connected between the plurality of contact plates, and the contact baffles are connected to the annular reset mechanism.

[0011] Preferably, the annular reset mechanism includes a plurality of reset balls equidistantly arranged at the bottom of the contact baffle, a reset rod is fixedly connected to the bottom of the reset ball, a reset sleeve is provided on the outer side of the reset rod, and a support spring connected to the reset rod is provided inside the reset sleeve. The annular reset mechanism is provided to reset the antenna body.

[0012] Preferably, the supporting shell includes a hollow spherical end, and the spherical end is located inside the rotating shell. The bottom of the spherical end is connected to a hollow supporting sleeve, and the supporting sleeve is arranged through the through hole and installed on the fixed plate, so that the supporting shell and the rotating shell are stably connected.

[0013] Preferably, the adjustment mechanism comprises a hemispherical pushing block arranged inside the supporting shell, a plurality of clamping columns are evenly distributed on the spherical surface of the pushing block, and a movable hole for allowing the plurality of clamping columns to pass through is provided on the end of the sphere;

[0014] The bottom of the pushing block is fixedly connected to a pushing rod, and the pushing rod is located at the position of the supporting sleeve and is provided with a pushing member for pushing its position. Through the provided adjustment mechanism, the tightness between the rotating shell and the supporting shell can be adjusted.

[0015] Preferably, the pushing member includes a wedge-shaped opening provided on the pushing rod, and a wedge-shaped block is provided at the wedge-shaped opening, a connecting plate is provided above the wedge-shaped block, and the wedge-shaped block is connected to the driving mechanism;

[0016] The support sleeve is provided with a moving opening for moving the wedge block;

[0017] The connecting plate is fixedly sleeved on the outside of the push rod, and a connecting spring is fixedly connected to the connecting plate. The connecting spring is sleeved on the outside of the push rod, and the top of the connecting spring is fixedly connected to a limiting plate. The limiting plate is fixedly connected to the inside of the spherical end, and the pushing member is provided to drive the pushing rod.

[0018] Preferably, the driving mechanism includes an L-shaped positioning plate fixedly connected to one end of the outer side of the wedge block support sleeve, the side of the positioning plate away from the support sleeve is fixedly connected to the movable plate, and the fixed plate is provided with a connecting mechanism for moving and resetting the movable plate;

[0019] The movable plate is provided with a plurality of tooth blocks, and a rotating gear meshing with the plurality of tooth blocks is provided above the movable plate. The fixed plate is provided with a transmission mechanism for driving the rotating gear. The driving mechanism is provided to drive the adjusting mechanism.

[0020] Preferably, the connecting mechanism includes a guide groove provided on the fixed plate and limiting the movable plate. Telescopic springs are respectively provided at both ends of the inner wall of the guide groove, and the two telescopic springs are respectively fixedly connected to the two ends of the movable plate. Through the provided connecting mechanism, the position of the movable plate can be adjusted.

[0021] Preferably, the transmission mechanism includes a damping shaft rotatably connected to the fixed plate, and the top end of the damping shaft is fixedly connected to a rotating disk, and a plurality of fan blades are provided on the outer side of the rotating disk;

[0022] The bottom of the damping shaft is fixedly sleeved with a first connecting gear, the outer side of the first connecting gear is connected to a gear chain, and the inside of the gear chain is connected to a second connecting gear, the inner ring of the second connecting gear is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to the first helical gear, and the first helical gear is meshed with the second helical gear, one side of the second helical gear is fixedly connected to the rotating shaft, and a fixed block for supporting the rotating shaft is provided on the fixed plate, and the end of the rotating shaft away from the second helical gear is fixedly connected to the rotating gear, and the driving of the rotating gear is achieved through the transmission mechanism.

[0023] Preferably, a protective shell for protecting the multiple gears is provided on the fixing plate, and the service life of the multiple gears is improved by providing the protective shell.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When the present invention is in use, a rotating shell is provided at the bottom end of the antenna body, and the rotation can be rotated relative to the supporting shell. At the same time, an annular reset mechanism is provided on the fixed plate. When the antenna body is rotated by a large wind force, the annular reset mechanism can rotate the antenna body to its original position after the antenna body is rotated by the wind, thereby further realizing the function of the antenna body to perform stable signal transmission.

[0026] 2. When the present invention is in use, a rotating shell is provided at the bottom end of the antenna body, and the rotation can be rotated relative to the supporting shell. At the same time, an annular reset mechanism is provided on the fixed plate. When the antenna body is rotated by a large wind force, the annular reset mechanism can rotate the antenna body to its original position after the antenna body is rotated by the wind, thereby further realizing the function of the antenna body to perform stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the antenna body structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the fixed plate structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the rotating shell explosion structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the supporting shell structure of the present invention;

[0032] Figure 6 This is a schematic cross-sectional view of the push rod of the present invention;

[0033] Figure 7 This is a schematic diagram of the explosion structure of the reset sleeve of the present invention;

[0034] Figure 8 It is a schematic diagram of the transmission mechanism structure of the present invention.

[0035] In the figure: 1-antenna body; 2-rotating shell; 21-through hole; 22-contact plate; 23-contact baffle; 3-fixing plate; 4-annular reset mechanism; 41-reset ball; 42-reset rod; 43-reset sleeve; 44-support spring; 5-support shell; 51-ball end; 52-support sleeve; 6-adjusting mechanism; 61-pushing block; 62-clamping column; 63-pushing rod; 631-wedge-shaped mouth; 7-driving mechanism; 71-positioning plate; 72-moving plate; 721-guide groove; 7 3-connecting mechanism; 731-telescopic spring; 74-tooth block; 75-rotating gear; 8-pushing member; 81-wedge block; 82-connecting plate; 83-connecting spring; 84-limiting plate; 9-transmission mechanism; 91-damping shaft; 92-rotating disk; 93-fan blades; 94-first connecting gear; 95-gear chain; 96-second connecting gear; 97-rotating shaft; 98-first bevel gear; 99-second bevel gear; 991-rotating shaft; 992-fixed block; 10-protective shell. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1-8 The present invention provides a technical solution: an antenna assembly for high-dynamic UAV communication, comprising an antenna body 1 arranged on a UAV, wherein two antenna bodies 1 are provided, and the two antenna bodies 1 are respectively located on both sides of the UAV, a rotating shell 2 with a spherical shape and a hollow interior is installed at the bottom of the antenna body 1, and a fixing plate 3 is provided on both sides of the antenna body 1, and the fixing plate 3 is arranged in an arc shape, so that it can stably support the antenna body 1 while ensuring stable airflow around the UAV, and a plurality of contact plates 22 are equidistantly provided on the outer side of the rotating shell 2 near the through hole 21, and the plurality of contact plates 22 are fixedly connected to each other with contact baffles 23, which are in a hollow ring shape and are connected to an annular reset mechanism 4, and an annular reset mechanism 4 is provided on the fixing plate 3 for maintaining the antenna body 1 in a vertical position for communication through the rotating shell 2;

[0038] The annular reset mechanism 4 includes a plurality of reset balls 41 equidistantly arranged at the bottom of the contact baffle 23. A reset rod 42 is fixedly connected to the bottom of the reset ball 41. A reset sleeve 43 is provided on the outer side of the reset rod 42. A support spring 44 connected to the reset rod 42 is provided inside the reset sleeve 43.

[0039] When the antenna body 1 is subjected to a strong wind force, it rotates relative to the support shell 5 through the rotating shell 2. As the rotating shell 2 rotates, the contact baffle 23 on its outer side rotates with the reset ball 41 at the corresponding rotational tilt position, further squeezing the reset ball 41, causing the reset ball 41 to compress the support spring 44 through the reset rod 42. When the support spring 44 is compressed, it generates a reverse elastic force, which, on the one hand, serves to enhance the supporting force of the antenna body 1, and on the other hand, drives the antenna body 1 to rotate to its original position.

[0040] In the present application, an angle sensor can also be provided on the rotating shell 2. The angle sensor transmits the signal to the remote control manually controlled on the ground by rotating the antenna through the antenna, so that the operator can adjust the antenna position on the remote control according to the position of the antenna, thereby further achieving the effect of signal gain.

[0041] The bottom of the rotating shell 2 is provided with a through hole 21 connected to its internal cavity. A support shell 5 is provided at the through hole 21. The support shell 5 includes a hollow spherical end 51, and the spherical end 51 is located inside the rotating shell 2. There is a certain gap between the support shell 5 and the rotating shell 2, which allows the rotating shell 2 to rotate relative to the support shell 5. A hollow support sleeve 52 is connected to the bottom of the spherical end 51. The support sleeve 52 is provided through the through hole 21 and is mounted on the fixed plate 3. The support shell 5 is provided with an adjustment mechanism 6 for adjusting the tightness of the rotating shell 2.

[0042] The adjusting mechanism 6 includes a hemispherical pushing block 61 arranged inside the supporting shell 5. A plurality of clamping posts 62 are evenly distributed on the spherical surface of the pushing block 61, and the plurality of clamping posts 62 are relatively arranged on the top of the pushing block 61. At the same time, in order to achieve stable pushing of the plurality of clamping posts 62, a buffer sleeve is provided on the pushing block 61, and the plurality of clamping posts 62 are fixedly connected to the buffer sleeve. A movable hole for allowing the plurality of clamping posts 62 to pass through is provided on the spherical end 51. When the rotating shell 2 and the supporting shell 5 are in a relatively loose state, the plurality of clamping posts 62 are located at the movable hole. When the rotating shell 2 and the supporting shell 5 are in a clamping state, the plurality of clamping posts 62 are pressed against the rotating shell 2.

[0043] The bottom of the pushing block 61 is fixedly connected to a pushing rod 63, and the pushing rod 63 is provided with a pushing member 8 for pushing the pushing member 8 at the position of the supporting sleeve 52. The pushing member 8 includes a wedge-shaped opening 631 provided on the pushing rod 63, and a wedge-shaped block 81 is provided at the wedge-shaped opening 631. A connecting plate 82 is provided above the wedge-shaped block 81. The wedge-shaped block 81 is connected to the driving mechanism 7.

[0044] The support sleeve 52 is provided with a moving opening for moving the wedge block 81;

[0045] The connecting plate 82 is fixedly sleeved on the outside of the push rod 63, and a connecting spring 83 is fixedly connected to the connecting plate 82. The connecting spring 83 is always in a compressed state. Then, when the wedge block 81 moves relative to the moving opening, the push rod 63 can be restored to its original position under the connection of the connecting spring 83. The connecting spring 83 is sleeved on the outside of the push rod 63, and the top end of the connecting spring 83 is fixedly connected to the limiting plate 84, and the limiting plate 84 is fixedly connected to the inside of the spherical end 51.

[0046] A driving mechanism 7 for driving the adjustment mechanism 6 is provided on the fixed plate 3, and the driving mechanism 7 operates at a relatively high wind speed. The driving mechanism 7 includes an L-shaped positioning plate 71 fixedly connected to one end of the outer side of the support sleeve 52 of the wedge block 81. A movable plate 72 is fixedly connected to the side of the positioning plate 71 away from the support sleeve 52. A connecting mechanism 73 for moving and resetting the movable plate 72 is provided on the fixed plate 3.

[0047] The connecting mechanism 73 includes a guide groove 721 provided on the fixed plate 3 and used to limit the movable plate 72. A telescopic spring 731 is provided at each end of the inner wall of the guide groove 721. The two telescopic springs 731 are fixedly connected to the two ends of the movable plate 72. The two telescopic springs 731 are provided so that, under normal conditions, the movable plate 72 is positioned close to the support sleeve 52, further moving the wedge block to the wedge-shaped opening 631. This allows the push rod 63, via the push block 61, to push the multiple clamping posts 62 into contact with the rotating housing 2, further securing the antenna body 1 relative to the movable plate 72.

[0048] The movable plate 72 is provided with a plurality of tooth blocks 74 , and a rotating gear 75 meshing with the plurality of tooth blocks 74 is provided above the movable plate 72 . The fixed plate 3 is provided with a transmission mechanism 9 for driving the rotating gear 75 .

[0049] The transmission mechanism 9 includes a damping shaft 91 rotatably connected to the fixed plate 3. The damping shaft 91 is configured so that the plurality of fan blades 93 can only drive the damping shaft 91 to rotate relative to the fixed plate 3 when the wind force is strong. A rotating disk 92 is fixedly connected to the top end of the damping shaft 91, and a plurality of fan blades 93 are provided on the outer side of the rotating disk 92.

[0050] A first connecting gear 94 is fixedly sleeved on the bottom of the damping shaft 91, a gear chain 95 is transmission-connected to the outside of the first connecting gear 94, and a second connecting gear 96 is transmission-connected to the inside of the gear chain 95, the inner ring of the second connecting gear 96 is fixedly connected to a rotating shaft 97, the top of the rotating shaft 97 is fixedly connected to a first bevel gear 98, and the first bevel gear 98 is meshed with a second bevel gear 99, one side of the second bevel gear 99 is fixedly connected to a rotating shaft 991, and a fixed block 992 for supporting the rotating shaft 991 is provided on the fixed plate 3, and the end of the rotating shaft 991 away from the second bevel gear 99 is fixedly connected to the rotating gear 75.

[0051] A protective shell 10 is provided on the fixed plate 3 for protecting the multiple gears;

[0052] When the drone is in use, when flying in a state of strong wind, the multiple blades 93 will be intermittently driven by wind in different directions due to the flight direction of the drone. At this time, the multiple blades 93 will rotate forward and reverse continuously. While the blades 93 are rotating, they drive the second connecting gear 96 to rotate through the first connecting gear 94 and the gear chain 95, further causing the rotating shaft 97 to drive the first bevel gear 98 to rotate, and under the connection of the second bevel gear 99, further causing the rotating shaft 991 to rotate the waiting rotating gear 75. Since the rotating gear 75 is engaged with the multiple tooth blocks 74 on the movable plate 72, the movable plate 72 is further reciprocated in the guide. At the same time, when the movable plate 72 reciprocates, the pushing block 61 is reciprocated up and down inside the supporting shell 5, further causing the rotating shell 2 to intermittently rotate relative to the supporting shell 5 while being relatively fixed, thereby realizing that the antenna body 1 is continuously adjusted and rotated due to changes in wind force, further playing a role in reducing the wind resistance of the antenna body 1, thereby improving the service life of the antenna body 1.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An antenna assembly for high-dynamic UAV communication, comprising an antenna body (1) arranged on the UAV, wherein two antenna bodies (1) are provided, and the two antenna bodies (1) are respectively located on both sides of the UAV, characterized in that: A spherical rotating shell (2) with a hollow interior is installed at the bottom of the antenna body (1); fixing plates (3) are provided on both sides of the antenna body (1); and an annular reset mechanism (4) is provided on the fixing plates (3) for maintaining the antenna body (1) in a vertical position for communication via the rotating shell (2); The bottom of the rotating shell (2) is provided with a through hole (21) communicating with the internal cavity thereof, a support shell (5) is provided at the through hole (21), and an adjustment mechanism (6) for adjusting the tightness of the rotating shell (2) is provided at the support shell (5); The fixed plate (3) is provided with a driving mechanism (7) for driving the regulating mechanism (6), and the driving mechanism (7) operates at a relatively high wind speed; A plurality of contact plates (22) are provided at equal distances on the outer side of the rotating shell (2) near the through hole (21), and a contact baffle (23) is fixedly connected between the plurality of contact plates (22), and the contact baffle (23) is connected to the annular reset mechanism (4); The annular reset mechanism (4) comprises a plurality of reset balls (41) equidistantly arranged at the bottom of the contact baffle (23); a reset rod (42) is fixedly connected to the bottom of the reset ball (41); a reset sleeve (43) is sleeved on the outer side of the reset rod (42); and a support spring (44) connected to the reset rod (42) is provided inside the reset sleeve (43); The support shell (5) includes a hollow spherical end (51), and the spherical end (51) is located inside the rotating shell (2). The bottom of the spherical end (51) is connected to a hollow support sleeve (52), and the support sleeve (52) is arranged through the through hole (21) and is installed on the fixed plate (3). The adjustment mechanism (6) comprises a hemispherical pushing block (61) arranged inside the supporting shell (5); a plurality of clamping columns (62) are evenly distributed on the spherical surface of the pushing block (61); and a movable hole for allowing the plurality of clamping columns (62) to pass through is provided on the spherical end (51); The bottom of the pushing block (61) is fixedly connected to a pushing rod (63), and the pushing rod (63) is provided with a pushing member (8) for pushing the position thereof at a position where the pushing rod (63) is located on the supporting sleeve (52); The pushing member (8) includes a wedge-shaped opening (631) provided on the pushing rod (63), and a wedge-shaped block (81) is provided at the wedge-shaped opening (631), a connecting plate (82) is provided above the wedge-shaped block (81), and the wedge-shaped block (81) is connected to the driving mechanism (7); The support sleeve (52) is provided with a moving opening for moving the wedge block (81); The connecting plate (82) is fixedly sleeved on the outside of the push rod (63), and a connecting spring (83) is fixedly connected to the connecting plate (82), the connecting spring (83) is sleeved on the outside of the push rod (63), and the top of the connecting spring (83) is fixedly connected to a limiting plate (84), and the limiting plate (84) is fixedly connected to the inside of the spherical end (51); The driving mechanism (7) comprises an L-shaped positioning plate (71) fixedly connected to one end of the outer side of the support sleeve (52) of the wedge block (81); a movable plate (72) is fixedly connected to the side of the positioning plate (71) away from the support sleeve (52); and a connecting mechanism (73) for moving and resetting the movable plate (72) is provided on the fixed plate (3); The movable plate (72) is provided with a plurality of tooth blocks (74), and a rotating gear (75) meshing with the plurality of tooth blocks (74) is provided above the movable plate (72). The fixed plate (3) is provided with a transmission mechanism (9) for driving the rotating gear (75).

2. The antenna assembly for high-dynamic UAV communication according to claim 1, characterized in that: The connecting mechanism (73) comprises a guide groove (721) provided on the fixed plate (3) and used to limit the movable plate (72); telescopic springs (731) are respectively provided at both ends of the inner wall of the guide groove (721), and the two telescopic springs (731) are respectively fixedly connected to the two ends of the movable plate (72).

3. The antenna assembly for high-dynamic UAV communication according to claim 2, characterized in that: The transmission mechanism (9) includes a damping shaft (91) rotatably connected to the fixed plate (3), a rotating disk (92) is fixedly connected to the top end of the damping shaft (91), and a plurality of fan blades (93) are provided on the outer side of the rotating disk (92); The damping shaft (91) is fixedly sleeved with a first connecting gear (94) at the bottom, the first connecting gear (94) is connected to a gear chain (95) on the outside, and the gear chain (95) is connected to a second connecting gear (96) on the inside, the second connecting gear (96) is fixedly connected to a rotating shaft (97) on the inner ring, the top of the rotating shaft (97) is fixedly connected to a first bevel gear (98), and the first bevel gear (98) is meshed with a second bevel gear (99), one side of the second bevel gear (99) is fixedly connected to a rotating shaft (991), and a fixed block (992) for supporting the rotating shaft (991) is provided on the fixed plate (3), and the end of the rotating shaft (991) away from the second bevel gear (99) is fixedly connected to the rotating gear (75).

4. The antenna assembly for high-dynamic UAV communication according to claim 1, characterized in that: The fixing plate (3) is provided with a protective shell (10) for protecting a plurality of gears.

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