High-precision attitude stabilizing device of unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a high-precision attitude stabilizing device of an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, symmetrically distributed unmanned aerial vehicle wings are arranged at four corners of the unmanned aerial vehicle body, an unmanned aerial vehicle control main body is further mounted on the unmanned aerial vehicle body, and an unmanned aerial vehicle bracket is fixedly mounted on the unmanned aerial vehicle body; a guide base is fixedly mounted on the unmanned aerial vehicle support, a threaded sliding seat driven by a driving part is arranged above the guide base, an adjusting tank frame is further arranged on the guide base, a counterweight clamping groove is formed in the end, located below the guide base, of the adjusting tank frame, and a counterweight liquid tank filled with counterweight liquid is detachably mounted on the adjusting tank frame. According to the high-precision attitude stabilizing device of the unmanned aerial vehicle, movement of the threaded sliding seat is accurately controlled through the unmanned aerial vehicle control body, the position of the adjusting tank frame on the guide base is adjusted through the connecting rod, and therefore the gravity of balance weight liquid in the balance weight liquid tank and contraction and gathering of the position of the balance weight liquid are controlled, and the gravity center position of the unmanned aerial vehicle is rapidly and accurately adjusted.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a high-precision attitude stabilization device for UAVs. Background Technology

[0002] As an important achievement of modern technology, drones have been widely used in various fields such as aerial photography, monitoring, and logistics.

[0003] Flight stability is one of the key factors ensuring the success of a drone's mission. However, in actual flight, drones often encounter complex weather conditions such as diagonal winds. These conditions can cause changes in the drone's center of gravity, making it difficult to maintain stable flight attitude and leading to tilting, which seriously affects flight safety and the accuracy of mission execution.

[0004] While existing drone attitude control systems have a certain degree of anti-interference capability, when faced with severe external disturbances, such as strong winds or rapidly changing wind directions, the drone's light weight makes it difficult to quickly change its center of gravity simply by adjusting the propeller's power. This can lead to tilting during flight and affect flight stability. Utility Model Content

[0005] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0006] Specifically, the technical problem to be solved by this utility model is to provide a high-precision attitude stabilization device for unmanned aerial vehicles (UAVs) to solve the technical problem that current UAVs, when in harsh environments, cannot quickly change their center of gravity by simply adjusting the propeller blades, which leads to tilting during flight and affects flight stability.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A high-precision attitude stabilization device for a drone includes a drone body, drone wings symmetrically distributed at the four corners of the drone body, a drone control unit mounted on the drone body, a drone bracket fixedly mounted on the drone body, and a guide base fixedly mounted on the drone bracket below the drone body.

[0009] The guide base is provided with a threaded slide block driven by a drive component above it. The guide base is also provided with an adjustment tank frame arranged in a ring array around the threaded slide block. The adjustment tank frame is provided with a counterweight slot at one end below the guide base. A counterweight liquid tank filled with counterweight liquid can be installed and removed from the adjustment tank frame through the counterweight slot.

[0010] A connecting rod is provided between the adjusting tank frame and the threaded slide. One end of the connecting rod is hinged to the corresponding adjusting tank frame, and the other end of the connecting rod is hinged to the outside of the threaded slide. The connecting rods are distributed in a ring array around the threaded slide.

[0011] As an improved technical solution, the driving component includes a motor that is fixedly installed in the drone body and electrically connected to the drone control body. The output shaft of the motor is driven by a screw. The end of the screw away from the motor is rotatably connected to the guide base. The threaded slide is located between the drone body and the guide base and is threadedly connected to the screw.

[0012] As an improved technical solution, the guide base is provided with a sliding groove for adjusting the can rack's limiting sliding, and the outer side of the adjusting can rack is provided with an assembly groove that matches the sliding groove. The adjusting can rack is disassembled and installed in the sliding groove through the assembly groove.

[0013] As an improved technical solution, the end of the connecting rod near the guide base is hinged to the end of the protruding slide groove of the adjusting tank frame, and the adjusting tank frame is provided with a clearance groove for the connecting rod to avoid obstacles.

[0014] As an improved technical solution, the inner side of the drone bracket is provided with an arc-shaped slot that matches the guide base. The guide base is detached and installed in the drone bracket through the arc-shaped slot, and one end of the drone bracket is provided with symmetrically distributed moving wheels on both sides of the drone body.

[0015] As an improved technical solution, each of the counterweight liquid tanks is fixedly equipped with a drain valve that is connected to the electrical signal of the UAV control body, and the drain valve is connected to the interior of the corresponding counterweight liquid tank. A miniature liquid pump that is connected to the electrical signal of the UAV control body is also fixedly installed on the counterweight liquid tank.

[0016] As an improved technical solution, a liquid supply tank is also fixedly installed on the guide base. A replenishment valve connected to the liquid supply tank is fixedly installed at the bottom of the liquid supply tank. The liquid supply tank is also provided with a ring array of infusion hoses, and one end of the infusion hose protruding from the liquid supply tank is connected to a corresponding micro liquid pump.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This utility model uses the drone control body to precisely control the movement of the threaded slide block and adjusts the position of the tank frame on the guide base through the connecting rod, thereby controlling the gravity and position of the counterweight liquid in the counterweight liquid tank, and realizing the rapid and precise adjustment of the drone's center of gravity position.

[0019] 2. This utility model utilizes a micro liquid pump to precisely control the delivery volume and speed of the liquid, achieving fine management of the distribution of the counterweight liquid. This enables the UAV to adapt to varying flight conditions and load requirements without human intervention, thus improving the degree of automation in operation.

[0020] 3. This utility model, through the assembly groove design that matches the slide, realizes the convenient installation and disassembly of the adjustable tank rack. In addition, the guide base is installed or removed through the arc-shaped slot on the drone bracket, thereby facilitating the long-term stable use and maintenance of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a three-dimensional structural diagram of the high-precision attitude stabilization device for the UAV of this utility model.

[0023] Figure 2 This is a schematic diagram of the drone support and guide base structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the installation structure of the drone body and the drone support according to this utility model.

[0025] Figure 4 This is a schematic diagram of the installation structure of the adjustable tank rack and guide base of this utility model.

[0026] Figure 5 This is a schematic diagram of the installation structure of the adjusting tank frame and the counterweight liquid tank of this utility model.

[0027] Figure 6 This is a schematic diagram of the installation structure of the liquid tank and the liquid supply storage tank of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. UAV body; 101. UAV wing; 102. UAV control unit; 2. UAV bracket; 201. Arc-shaped slot; 202. Casters; 3. Guide base; 301. Slide groove; 4. Adjustable tank rack; 401. Counterweight slot; 402. Assembly slot; 403. Clearance slot; 5. Counterweight liquid tank; 501. Drain valve; 502. Miniature liquid pump; 6. Threaded slide; 7. Connecting rod; 8. Liquid supply tank; 801. Replenishment valve; 802. Infusion hose; 9. Motor; 10. Screw. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1 to 6 As shown in the figure, this embodiment provides a high-precision attitude stabilization device for a drone. This device includes a drone body 1, with symmetrically distributed drone wings 101 at its four corners. A drone control unit 102 is also mounted on the drone body 1. A drone support 2 is fixedly mounted on the drone body 1. A guide base 3 is fixedly mounted on the drone support 2 below the drone body 1. A threaded slide 6 driven by a drive component is located above the guide base 3. An adjustment tank frame 4 arranged in a circular array around the threaded slide 6 is also provided on the guide base 3. A counterweight slot 401 is provided at one end of the adjustment tank frame 4 below the guide base 3. A counterweight liquid tank 5 filled with counterweight liquid is detachably installed on the adjustment tank frame 4 through the counterweight slot 401. A connecting rod 7 is provided between the adjustment tank frame 4 and the threaded slide 6. One end of the connecting rod 7 is connected to the corresponding adjustment tank 5. The tank frame 4 is hinged together, and the other end of the connecting rod 7 is hinged to the outside of the threaded slide 6. The connecting rod 7 is arranged in a ring array around the threaded slide 6. The UAV body 1 is the main structure of the UAV. The motor on the UAV wing 101 drives the propeller blades to provide lift and control the flight attitude. The UAV control body 102 is the flight control system of the UAV. It is responsible for processing flight commands and sensor data, and provides the circuit hardware foundation for high-precision attitude stable flight. The UAV bracket 2 is installed on the UAV body 1 and provides support during landing. The threaded slide 6 can drive the adjustable tank frame 4 to move on the guide base through the connecting rod 7. The adjustable tank frame 4 is installed on the guide base 3 and is used to support the counterweight liquid tank 5. By controlling the gravity and position contraction and convergence of the counterweight liquid in the counterweight liquid tank 5, the center of gravity position of the UAV can be quickly and precisely adjusted to adapt to different flight conditions and load requirements.

[0033] The driving component includes a motor 9 fixedly installed in the drone body 1 and electrically connected to the drone control body 102. The output shaft of the motor 9 is driven by a screw 10. The end of the screw 10 away from the motor 9 is rotatably connected to the guide base 3. The threaded slide 6 is located between the drone body 1 and the guide base 3 and is threadedly connected to the screw 10. The screw 10 can be driven by the motor 9 to rotate on the guide base 3, so that the threaded slide 6 moves between the drone body 1 and the guide base 3 along the axial direction of the screw 10.

[0034] The guide base 3 has a sliding groove 301 for limiting the sliding of the adjustable can rack 4. The outer side of the adjustable can rack 4 has an assembly groove 402 that matches the sliding groove 301. The adjustable can rack 4 is detached and installed in the sliding groove 301 through the assembly groove 402. The sliding groove 301 can limit the sliding of the adjustable can rack 4, causing it to move together or apart. The assembly groove 402 can cooperate with the sliding groove 301 to realize the installation and removal of the adjustable can rack 4.

[0035] One end of the connecting rod 7 near the guide base 3 is hinged to one end of the adjusting tank frame 4 protruding from the slide groove 301. The adjusting tank frame 4 has a clearance groove 403 for the connecting rod 7 to avoid interference. The connecting rod 7 can connect multiple sets of adjusting tank frames 4 and threaded slides 6 and transmit motion. The clearance groove 403 is used to avoid interference with the connecting rod 7 when it deflects.

[0036] The inner side of the drone support 2 is provided with an arc-shaped slot 201 that is compatible with the guide base 3. The guide base 3 is installed and removed from the drone support 2 through the arc-shaped slot 201. One end of the drone support 2 is provided with symmetrically distributed moving wheels 202 on both sides of the drone body 1. The drone support 2 can install or remove the guide base 3 through the arc-shaped slot 201. The moving wheels 202 are used for ground movement and positioning of the drone.

[0037] Each counterweight liquid tank 5 has a drain valve 501 fixedly installed at its bottom end, which is electrically connected to the UAV control body 102. The drain valve 501 is connected to the corresponding counterweight liquid tank 5. A miniature liquid pump 502, which is electrically connected to the UAV control body 102, is also fixedly installed on the counterweight liquid tank 5. In an emergency, the drain valve 501 can be controlled by the UAV control body 102 to discharge the liquid inside the counterweight liquid tank 5. The miniature liquid pump 502 is used to control the replenishment of the liquid inside the counterweight liquid tank 5.

[0038] A liquid supply tank 8 is also fixedly installed on the guide base 3. A replenishment valve 801 connected to the liquid supply tank 8 is fixedly installed at the bottom of the liquid supply tank 8. The liquid supply tank 8 is also provided with a ring array of infusion hoses 802. One end of the infusion hose 802 protruding from the liquid supply tank 8 is connected to the corresponding micro liquid pump 502. The liquid supply tank 8 stores the counterweight liquid for use in the counterweight liquid tank 5. The replenishment valve 801 controls the replenishment of the liquid inside the liquid supply tank 8. The infusion hose 802 is threaded in the normal state and is responsible for connecting the micro liquid pump 502 and the counterweight liquid tank 5 to transport the liquid in the liquid supply tank 8.

[0039] During use, the UAV body 1 uses motors on its symmetrically distributed wings 101 to drive propeller blades, providing lift and controlling flight attitude. The UAV control body 102, as the flight control system, processes flight commands and sensor data, providing the necessary circuit hardware foundation for stable flight. When attitude stabilization is required, the UAV control body 102 controls the motor 9 to drive the screw 10 to rotate on the guide base 3, causing the threaded slide 6 to move between the UAV body 1 and the guide base 3 along the axis of the screw 10. Through the rotation of the connecting rod 7, the adjusting tank frame 4 is driven to slide on the guide base 3, controlling the contraction and convergence of the weight and position of the counterweight liquid in the counterweight liquid tank 5, and quickly and precisely adjusting the center of gravity position of the UAV.

[0040] During this process, the adjustment tank rack 4 is equipped with a clearance groove 403 to avoid interference with the connecting rod 7. At the same time, in case of strong winds or other emergencies, the UAV control unit 102 controls the drain valve 501 on the corresponding counterweight liquid tank 5 to quickly discharge the liquid in the corresponding counterweight liquid tank 5, thereby changing the weight of a single counterweight liquid tank 5, adjusting the center of gravity of the UAV, and affecting its flight attitude. In addition, the micro liquid pump 502 can precisely control the liquid delivery volume and speed, thereby precisely controlling the distribution of the counterweight liquid in the supply tank 8 through the delivery hose 802. The UAV can adapt to different flight conditions and load changes without human intervention.

[0041] The guide base 3 is provided with a sliding groove 301 to restrict the sliding of the adjustable tank frame 4, and the adjustable tank frame 4 is installed and disassembled through the assembly groove 402 that is compatible with the sliding groove 301. The guide base 3 is installed or disassembled through the arc-shaped slot 201 on the drone bracket 2, which facilitates the long-term use and maintenance of the device.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-precision attitude stabilization device for a drone, characterized in that: The device includes a drone body (1), which has symmetrically distributed drone wings (101) at its four corners. The drone body (1) is also equipped with a drone control unit (102). A drone bracket (2) is fixedly installed on the drone body (1), and a guide base (3) is fixedly installed on the drone bracket (2) and located below the drone body (1). The guide base (3) is provided with a threaded slide (6) driven by a drive component. The guide base (3) is also provided with an adjustment tank rack (4) arranged in a ring array around the threaded slide (6). The adjustment tank rack (4) is provided with a counterweight slot (401) at one end below the guide base (3). The adjustment tank rack (4) is detached and installed with a counterweight liquid tank (5) filled with counterweight liquid through the counterweight slot (401). A connecting rod (7) is provided between the adjusting tank frame (4) and the threaded slide (6). One end of the connecting rod (7) is hinged to the corresponding adjusting tank frame (4), and the other end of the connecting rod (7) is hinged to the outside of the threaded slide (6). The connecting rods (7) are arranged in a ring array around the threaded slide (6).

2. The high-precision attitude stabilization device for a UAV according to claim 1, characterized in that: The driving component includes a motor (9) that is fixedly installed in the UAV body (1) and electrically connected to the UAV control body (102). The output shaft of the motor (9) is connected to a screw (10). The end of the screw (10) away from the motor (9) is rotatably connected to the guide base (3). The threaded slide (6) is located between the UAV body (1) and the guide base (3) and is threadedly connected to the screw (10).

3. The high-precision attitude stabilization device for a UAV according to claim 2, characterized in that: The guide base (3) has a sliding groove (301) for limiting the sliding of the adjustable can rack (4). The outer side of the adjustable can rack (4) has an assembly groove (402) that matches the sliding groove (301). The adjustable can rack (4) is disassembled and installed in the sliding groove (301) through the assembly groove (402).

4. The high-precision attitude stabilization device for a UAV according to claim 1, characterized in that: The end of the connecting rod (7) near the guide base (3) is hinged to the end of the protruding groove (301) of the adjusting tank frame (4), and the adjusting tank frame (4) has a clearance groove (403) for the connecting rod (7) to avoid.

5. The high-precision attitude stabilization device for a UAV according to claim 1, characterized in that: The inner side of the drone bracket (2) is provided with an arc-shaped slot (201) that is compatible with the guide base (3). The guide base (3) is installed in the drone bracket (2) through the arc-shaped slot (201). One end of the drone bracket (2) is provided with moving wheels (202) symmetrically distributed on both sides of the drone body (1).

6. The high-precision attitude stabilization device for a UAV according to claim 1, characterized in that: Each of the counterweight liquid tanks (5) is fixedly equipped with a drain valve (501) that is electrically connected to the UAV control body (102), and the drain valve (501) is connected to the interior of the corresponding counterweight liquid tank (5). A miniature liquid pump (502) that is electrically connected to the UAV control body (102) is also fixedly installed on the counterweight liquid tank (5).

7. The high-precision attitude stabilization device for a UAV according to claim 6, characterized in that: A liquid supply tank (8) is also fixedly installed on the guide base (3). A replenishment valve (801) connected to the liquid supply tank (8) is fixedly installed at the bottom end of the liquid supply tank (8). The liquid supply tank (8) is also provided with a ring array of infusion hoses (802), and one end of the infusion hose (802) protruding from the liquid supply tank (8) is connected to a corresponding micro liquid pump (502).

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