Frequency transmission array antenna

Abstract

The invention relates to the technical field of frequency transmission array antennas, in particular to a frequency transmission array antenna, which comprises a placement seat, a rotating plate rotationally connected to the placement seat, a diversion protection plate arranged on the rotating plate in a sliding fit manner, a frequency transmission array antenna placed in the placement seat, and a fixed frame fixedly connected to the lower surface of the placement seat, the limiting shafts are rotationally connected to the fixing frames, the mounting mechanisms are rotationally connected to the limiting shafts, the adjusting mechanisms are fixedly connected to one sides of the fixing frames, and the angle and the extending length between the two mounting frames can be adjusted by arranging the mounting mechanisms and matching the adjusting mechanisms and the limiting shafts; therefore, the antenna is suitable for being installed on supporting legs of different sizes at the bottom of the unmanned aerial vehicle, and the frequency transmission array antenna can be conveniently installed on the unmanned aerial vehicle for use. And the universality and compatibility of the equipment are improved, so that the antenna can be used on unmanned aerial vehicles of various models, and the dependence on specific models is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency transmissive array antennas, and particularly to a frequency transmissive array antenna. Background Art

[0002] A frequency transmissive array antenna is an antenna array that has selective transmission characteristics within a specific frequency range. It mainly realizes the selective enhancement or attenuation of signal frequencies by adjusting the frequency characteristics of different antenna elements in the array. The working principle of this antenna array is based on frequency selectivity: it can selectively transmit signals within a certain frequency range while attenuating or suppressing signals of other frequencies. Frequency transmissive array antennas have wide applications in modern communication systems, especially in the fields of wireless communication, radar systems, and spectrum management.

[0003] The prior art document with the publication number CN217719957U provides a transmissive array antenna with frequency selection characteristics. By arranging the receiving unit above the first dielectric plate and the transmitting unit below the third dielectric plate, and the transmission medium passes through the first dielectric plate, the first metal plate, the second dielectric plate, the second metal plate, and the third dielectric plate in sequence, so that electromagnetic waves are transmitted from the receiving unit to the transmitting unit through the above media. Since in this design, the number of dielectric plates and metal plates is reduced. Compared with the traditional transmissive array antenna structure, the number of dielectric plates is small, and the number of installed metal plates will also decrease accordingly. Therefore, the problem of a large number of layers of transmissive array units existing in the prior art can be solved; the transmissive array antenna proposed by the present utility model can realize the transmission of electromagnetic waves only through three dielectric plates, two metal plates, one transmitting unit, and one receiving unit, and the overall structure is simple.

[0004] The frequency transmissive array antenna can be installed on the fuselage of a drone to improve the quality of wireless communication, is suitable for frequency selective adjustment in a dynamic environment, and is applied to fields such as communication, radar, and monitoring. However, the prior art lacks an installation structure adapted to the drone, resulting in inconvenience in installing and using it on the drone.

[0005] In summary, in the prior art, there is a lack of installation technology for frequency transmissive array antennas adapted to drones. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies in the background art and propose a frequency transmissive array antenna.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A frequency transmissive array antenna, including a placement seat, a rotating plate is rotatably connected to the placement seat, a flow guiding and protective plate is slidably engaged with the rotating plate, a frequency transmissive array antenna is placed in the placement seat, a fixing frame is fixedly connected to the lower surface of the placement seat, a limiting shaft is rotatably connected to the fixing frame, an installation mechanism is rotatably connected to the limiting shaft, and an adjusting mechanism is fixedly connected to one side of the fixing frame.

[0008] Preferably, a drain opening is provided at one end of the placement seat, a baffle is rotatably connected in the drain opening, a rotating shaft is provided at the part where the baffle is connected to the drain opening, a gear is fixedly connected to the rotating shaft of the baffle, a movable rack is meshed and driven on one side of the gear, the movable rack is slidably engaged with the through part of one side of the placement seat, a spring is fixedly connected to the movable rack, the other end of the spring is fixedly connected to the inner wall of the placement seat, and the outer end of the movable rack is in movable contact with the flow guiding and protective plate.

[0009] Preferably, a plurality of antenna card seats are slidably engaged with the inner wall of the bottom end of the placement seat in an annular structure, a tension spring is fixedly connected to the antenna card seat, the other end of the tension spring is fixedly connected to the inner wall of the bottom end of the placement seat, a card slot adapted to the outer wall of the frequency transmissive array antenna is provided at the upper end of the antenna card seat, a rubber pad is fixedly connected to the inner wall of the card slot, and the inner wall of the card slot is in movable clamping connection with the outer wall of the frequency transmissive array antenna.

[0010] Preferably, a motor A is fixedly connected to the end of the rotating plate connected to the placement seat, the motor A is fixedly connected to the inner wall of the placement seat, a motor B is fixedly connected to the inner side of the rotating plate, an adjusting wheel is fixedly connected to the output shaft of the motor B, a limiting block is fixedly connected above the rotating plate, and the limiting block is arranged in a T-shaped structure.

[0011] Preferably, a sliding groove is provided on the outer surface of the flow guiding and protective plate close to the placement seat, the inner wall of the sliding groove is slidably engaged with the limiting block, a fixed rack is fixedly connected to one side inner wall of the sliding groove, and the fixed rack is meshed and driven with the adjusting wheel.

[0012] Preferably, a motor C is fixedly connected to one end of the limiting shaft, the motor C is fixedly connected to the fixing frame, and a transmission gear disk is fixedly connected to the limiting shaft.

[0013] Preferably, the installation mechanism includes two adjusting frames arranged symmetrically, one end of the adjusting frame is rotatably connected to the limiting shaft, a worm is rotatably connected through the adjusting frame, a transmission wheel is fixedly connected to one end of the worm, and the transmission wheel is meshed and driven with the transmission gear disk.

[0014] Preferably, worm wheels are provided on both sides of the worm for meshing transmission, the worm wheels are rotatably connected to the adjustment frame, a connecting rod group is fixedly connected to the worm wheel, a mounting frame is rotatably connected between the other ends of the two connecting rod groups, and the mounting frame is arranged in a V-shaped structure.

[0015] Preferably, the adjustment mechanism includes an electric push rod fixedly connected to a fixed frame, the telescopic end of the electric push rod is fixedly connected to a hinge seat, the hinge seat is symmetrically structured and rotatably connected with two connecting rods, the other end of the connecting rod is rotatably connected with a connecting block, and one end of the connecting block is fixedly connected to the adjustment frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the installation mechanism, cooperating with the adjustment mechanism and the limit axis, the angle and extension length between the two mounting frames can be adjusted, so that it is suitable for installation on the feet of different sizes at the bottom of the drone, which is convenient for the frequency transmission array antenna to be installed on the drone. By adapting to the installation requirements of the bottom feet of different drones, the versatility and compatibility of the equipment are improved, so that the antenna can be used on a variety of drone models, reducing dependence on specific models. This allows the frequency transmission array antenna to cooperate with different types of drones more flexibly and efficiently, which not only improves the antenna performance, but also optimizes the convenience of installation, maintenance and operation.

[0017] 2. By setting a guide guard plate in conjunction with a placement seat, when the device is not in use, the guide guard plate can cover the placement seat to protect the frequency transmission array antenna; when the device is in use, the angle and moving distance of the guide guard plate can be adjusted by rotating the plate to form an inclined plane. After that, during takeoff, the movement and lifting can be carried out simultaneously. With the guidance of the guide guard plate, the lifting efficiency is improved and the burden during lifting is reduced, making the installation and use of the frequency transmission array antenna on the UAV more efficient, stable and reliable.

[0018] 3. A drainage port is provided on the placement seat, which is conducive to quickly draining rainwater that enters the placement seat on rainy days; a baffle is provided, which can automatically drive the baffle to seal the drainage port when the guide protection plate is closed, thereby protecting the frequency transmission array antenna and effectively protecting it from environmental factors such as rain. It not only provides excellent protection function and extends the service life of the equipment, but also improves flight safety, operational convenience and overall reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a frequency transmission array antenna of the present invention; Figure 2 It is a schematic diagram of the structure of a placement seat for a frequency transmission array antenna of the present invention; Figure 3Schematic diagram of the rotating plate structure of a frequency transmissive array antenna according to the present invention; Figure 4 Schematic diagram of the flow guiding and protective plate structure of a frequency transmissive array antenna according to the present invention; Figure 5 Schematic diagram of the limiting shaft and other structures of a frequency transmissive array antenna according to the present invention; Figure 6 Schematic diagram of the installation mechanism structure of a frequency transmissive array antenna according to the present invention; Figure 7 Schematic diagram of the adjustment mechanism structure of a frequency transmissive array antenna according to the present invention; Figure 8 Schematic diagram when the overall structure of a frequency transmissive array antenna according to the present invention is used on a drone.

[0020] The labels in the figure are: 1, drone body; 2, placement seat; 3, rotating plate; 4, flow guiding and protective plate; 5, frequency transmissive array antenna; 6, fixing frame; 7, limiting shaft; 8, installation mechanism; 9, adjustment mechanism; 201, drain port; 202, baffle; 203, gear; 204, movable rack; 205, spring; 206, antenna clamping seat; 207, tension spring; 301, motor A; 302, motor B; 303, adjusting wheel; 304, limiting block; 401, chute; 402, fixed rack; 701, motor C; 702, transmission gear disk; 801, adjusting frame; 802, worm; 803, transmission wheel; 804, worm gear; 805, connecting rod group; 806, installation frame; 101, support leg; 901, electric push rod; 902, hinge seat; 903, connecting rod; 904, connecting block. Detailed implementation manners

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0022] As Figures 1 - 8 shown, a frequency transmissive array antenna includes a drone body 1. A placement seat 2 is arranged below the drone body 1. A rotating plate 3 is rotatably connected to the placement seat 2. A flow guiding and protective plate 4 is slidably fitted on the rotating plate 3. A frequency transmissive array antenna 5 is placed in the placement seat 2. A fixing frame 6 is fixedly connected to the lower surface of the placement seat 2. A limiting shaft 7 is rotatably connected to the fixing frame 6. An installation mechanism 8 is rotatably connected to the limiting shaft 7. An adjustment mechanism 9 is fixedly connected to one side of the fixing frame 6.

[0023] As Figure 2As shown in the figure, a drain opening 201 is provided at one end of the placement base 2. A baffle 202 is rotatably connected inside the drain opening 201. A rotating shaft is provided at the part where the baffle 202 is connected to the drain opening 201. A gear 203 is fixedly connected to the rotating shaft of the baffle 202. A movable rack 204 is meshed and driven on one side of the gear 203. The movable rack 204 is slidably and fittingly arranged through one side of the placement base 2. A spring 205 is fixedly connected to the movable rack 204. The other end of the spring 205 is fixedly connected to the inner wall of the placement base 2. The outer end of the movable rack 204 is in movable contact with the diversion and protection plate 4. When the diversion and protection plate 4 is not opened, the spring 205 is in a compressed state. When the diversion and protection plate 4 is opened, the movable rack 204 is not restricted. At this time, under the action of the spring 205, the movable rack 204 will drive the baffle 202 connected to the gear 203 to rotate, so that the drain opening 201 is opened.

[0024] A plurality of antenna holders 206 are slidably and fittingly arranged in an annular structure on the inner wall of the bottom end of the placement base 2. A tension spring 207 is fixedly connected to the antenna holder 206. The other end of the tension spring 207 is fixedly connected to the inner wall of the bottom end of the placement base 2. A card slot adapted to the outer wall of the frequency transmissive array antenna 5 is provided at the upper end of the antenna holder 206. A rubber pad is fixedly connected to the inner wall of the card slot. The inner wall of the card slot is movably clamped with the outer wall of the frequency transmissive array antenna 5. The frequency transmissive array antenna 5 is placed between a plurality of antenna holders 206, and the frequency transmissive array antenna 5 is fixed under the action of the tension spring 207. The rubber pad can achieve buffering and protection for the frequency transmissive array antenna 5.

[0025] As Figure 3 shown in the figure, a motor A 301 is fixedly connected to one end of the rotating plate 3 connected to the placement base 2. The motor A 301 is fixedly connected to the inner wall of the placement base 2. A motor B 302 is fixedly connected to the inner side of the rotating plate 3. An adjusting wheel 303 is fixedly connected to the output shaft end of the motor B 302. A limiting block 304 is fixedly connected above the rotating plate 3. The limiting block 304 is arranged in a T-shaped structure.

[0026] As Figure 4 shown in the figure, a chute 401 is provided on the outer surface of the diversion and protection plate 4 close to the placement base 2. The inner wall of the chute 401 is slidably and fittingly arranged with the limiting block 304. A fixed rack 402 is fixedly connected to one side inner wall of the chute 401. The fixed rack 402 is meshed and driven with the adjusting wheel 303. One end of the diversion and protection plate 4 abuts against the bottom end of the UAV body 1. The motor A 301 drives the connected rotating plate 3 to rotate, so that the rotating plate 3 drives the diversion and protection plate 4 to open. At the same time, the motor B 302 drives the connected adjusting wheel 303 to rotate, so that the adjusting wheel 303 meshes with the fixed rack 402, thereby adjusting the extending distance of the diversion and protection plate 4.

[0027] As Figure 5As shown in the figure, one end of the limit shaft 7 is fixedly connected with a motor C701, the motor C701 is fixedly connected with the fixed frame 6, and a transmission gear disk 702 is fixedly connected to the limit shaft 7. The motor C701 drives the connected limit shaft 7 to rotate, so that the limit shaft 7 drives the connected transmission gear disk 702 to rotate.

[0028] As Figure 6 shown in the figure, the installation mechanism 8 includes two adjusting frames 801 arranged in a symmetrical structure. One end of the adjusting frame 801 is rotatably connected to the limit shaft 7, a worm 802 is rotatably connected through the adjusting frame 801, one end of the worm 802 is fixedly connected with a transmission wheel 803, and the transmission wheel 803 is meshed and driven with the transmission gear disk 702.

[0029] Both sides of the worm 802 are meshed and driven with worm wheels 804. The worm wheels 804 are rotatably connected to the adjusting frame 801. A connecting rod group 805 is fixedly connected to the worm wheels 804. The other ends of the two connecting rod groups 805 are rotatably connected with an installation frame 806. The installation frame 806 is arranged in a V-shaped structure. Two support feet 101 are fixedly connected to the bottom of the UAV body 1 in a symmetrical structure. The installation frame 806 abuts against the outer wall of the support feet 101. The transmission gear disk 702 drives the worm 802 connected to the transmission wheel 803 to rotate, so that the worm 802 can drive the connecting rod group 805 connected to the two worm wheels 804 to rotate, so that the connecting rod group 805 can drive the installation frame 806 to move, so that the installation frame 806 abuts against the support feet 101. At this time, the top end of the diversion protection plate 4 abuts against the bottom end of the UAV body 1 for fixation.

[0030] As Figure 7 shown in the figure, the adjusting mechanism 9 includes an electric push rod 901 fixedly connected to the fixed frame 6. The telescopic end of the electric push rod 901 is fixedly connected with a hinge seat 902. Two connecting rods 903 are rotatably connected to the hinge seat 902 in a symmetrical structure. The other end of the connecting rod 903 is rotatably connected with a connecting block 904. One end of the connecting block 904 is fixedly connected to the adjusting frame 801. The electric push rod 901 drives the connected hinge seat 902 to move, so that the hinge seat 902 drives the adjusting frame 801 connected to the connecting block 904 to adjust the angle through the connecting rod 903.

[0031] By setting up the installation mechanism 8, cooperating with the adjustment mechanism 9 and the limit shaft 7, the angle and the extension length between the two mounting brackets 806 can be adjusted, so as to be applicable to the installation on the feet 101 of different sizes at the bottom of the UAV body 1, facilitating the installation of the frequency transmissive array antenna 5 on the UAV body 1 for use. By adapting to the installation requirements of the feet 101 at the bottom of different UAV bodies 1, the versatility and compatibility of the equipment are improved, enabling the antenna to be used on various models of UAVs and reducing the dependence on specific models. This allows the frequency transmissive array antenna 5 to cooperate with different types of UAVs more flexibly and efficiently, not only improving the antenna performance, but also optimizing the convenience of installation, maintenance and operation.

[0032] Working principle: When the frequency transmissive array antenna 5 needs to be installed on the UAV body 1 for use, first, the motor A 301 drives the connected rotating plate 3 to rotate, so that the rotating plate 3 drives the diversion and protection plate 4 to open. At the same time, the motor B 302 drives the connected adjusting wheel 303 to rotate, so that the adjusting wheel 303 meshes with the fixed rack 402, thereby adjusting the extension distance of the diversion and protection plate 4; Then, the frequency transmissive array antenna 5 is placed between multiple antenna holders 206 and fixed under the action of the tension spring 207. At the same time, when the diversion and protection plate 4 is opened, the movable rack 204 is not restricted. At this time, under the action of the spring 205, the movable rack 204 will drive the baffle 202 connected to the gear 203 to rotate, thereby opening the drain port 201; Then, the device is placed under the UAV body 1, and then the electric push rod 901 drives the connected hinge seat 902 to move, so that the hinge seat 902 drives the adjustment frame 801 connected by the connecting rod 903 to adjust the angle through the connecting block 904; Then, the motor C 701 drives the connected limit shaft 7 to rotate, so that the limit shaft 7 drives the connected transmission gear disc 702 to rotate, so that the transmission gear disc 702 drives the worm 802 connected to the transmission wheel 803 to rotate, so that the worm 802 can drive the connecting rod group 805 connected by two worm wheels 804 to rotate, so that the connecting rod group 805 can drive the mounting bracket 806 to move, so that the mounting bracket 806 abuts against the foot 101. At this time, the top end of the diversion and protection plate 4 abuts against the bottom end of the UAV body 1 for fixation.

[0033] It should be noted that, in this text, relational terms such as first and second are only used 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 "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and all of these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A frequency transmissive array antenna, comprising a placement base (2), characterized in that: A rotating plate (3) is rotatably connected to the placement seat (2). A flow guiding and protecting plate (4) is slidably fitted on the rotating plate (3). A frequency transmissive array antenna (5) is placed in the placement seat (2). A fixing frame (6) is fixedly connected to the lower surface of the placement seat (2). A limiting shaft (7) is rotatably connected to the fixing frame (6). An installation mechanism (8) is rotatably connected to the limiting shaft (7). An adjusting mechanism (9) is fixedly connected to one side of the fixing frame (6).

2. The frequency transmissive array antenna according to claim 1, wherein: One end of the placement seat (2) is provided with a drain port (201). A baffle (202) is rotatably connected in the drain port (201). A rotating shaft is provided at the connection part of the baffle (202) and the drain port (201). A gear (203) is fixedly connected to the rotating shaft of the baffle (202). A movable rack (204) is meshed and driven on one side of the gear (203). The movable rack (204) is slidably fitted through one side of the placement seat (2). A spring (205) is fixedly connected to the movable rack (204). The other end of the spring (205) is fixedly connected to the inner wall of the placement seat (2). The outer end of the movable rack (204) is in movable contact with the flow guiding and protecting plate (4).

3. The frequency transmissive array antenna according to claim 1, characterized in that: A plurality of antenna clamping seats (206) are slidably fitted on the inner wall of the bottom end of the placement seat (2) in an annular structure. A tension spring (207) is fixedly connected to the antenna clamping seat (206). The other end of the tension spring (207) is fixedly connected to the inner wall of the bottom end of the placement seat (2). A clamping groove adapted to the outer wall of the frequency transmissive array antenna (5) is provided at the upper end of the antenna clamping seat (206). A rubber pad is fixedly connected to the inner wall of the clamping groove. The inner wall of the clamping groove is in movable clamping connection with the outer wall of the frequency transmissive array antenna (5).

4. The frequency transmissive array antenna according to claim 1, characterized in that: A motor A (301) is fixedly connected to one end of the rotating plate (3) connected to the placement seat (2). The motor A (301) is fixedly connected to the inner wall of the placement seat (2). A motor B (302) is fixedly connected to the inner side of the rotating plate (3). An adjusting wheel (303) is fixedly connected to the output shaft of the motor B (302). A limiting block (304) is fixedly connected above the rotating plate (3). The limiting block (304) is arranged in a T-shaped structure.

5. A frequency transmissive array antenna according to claim 4, characterized in that: A sliding groove (401) is provided on the outer surface of the flow guiding and protecting plate (4) close to the placement seat (2). The inner wall of the sliding groove (401) is slidably fitted with the limiting block (304). A fixed rack (402) is fixedly connected to one side inner wall of the sliding groove (401). The fixed rack (402) is meshed and driven with the adjusting wheel (303).

6. The frequency transmissive array antenna according to claim 5, characterized in that: A motor C (701) is fixedly connected to one end of the limiting shaft (7). The motor C (701) is fixedly connected to the fixing frame (6). A transmission gear disk (702) is fixedly connected to the limiting shaft (7).

7. The frequency transmissive array antenna according to claim 6, wherein: The mounting mechanism (8) comprises two adjustment frames (801) arranged in a symmetrical structure, one end of the adjustment frame (801) being rotatably connected to the limit shaft (7), a worm (802) being rotatably connected to the adjustment frame (801), one end of the worm (802) being fixedly connected to a transmission wheel (803), and the transmission wheel (803) being meshed with the transmission gear disc (702) for transmission.

8. The frequency transmissive array antenna according to claim 7, wherein: Worm wheels (804) are provided on both sides of the worm (802) for meshing transmission. The worm wheels (804) are rotatably connected to the adjustment frame (801). A connecting rod group (805) is fixedly connected to the worm wheel (804). A mounting frame (806) is rotatably connected between the other ends of the two connecting rod groups (805). The mounting frame (806) is provided in a V-shaped structure.

9. The frequency transmissive array antenna according to claim 1, wherein: The adjustment mechanism (9) comprises an electric push rod (901) fixedly connected to a fixing frame (6); a hinge seat (902) is fixedly connected to the telescopic end of the electric push rod (901); two connecting rods (903) are rotatably connected to the hinge seat (902) in a symmetrical structure; a connecting block (904) is rotatably connected to the other end of the connecting rod (903); and one end of the connecting block (904) is fixedly connected to the adjustment frame (801).

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