A torsion arm rotor mechanism for unmanned aerial vehicles

Abstract

This invention provides a torsion arm rotor mechanism for unmanned aerial vehicles (UAVs), relating to the field of UAV technology. The UAV torsion arm rotor mechanism includes a UAV body. Four connecting brackets are evenly arranged on the outer side wall of the UAV body. Each connecting bracket has a coupling block on the side away from the UAV body, and a lifting component is arranged on the side of the coupling block away from the connecting bracket. A support base plate is fixedly connected to the lower side wall of the UAV body, and a float is fixedly connected inside the support base plate. An automatically inflatable cushion is arranged inside the float. In this invention, the movement state of the UAV is changed by a drive motor, eliminating the need to adjust the lift by changing the UAV's rotation speed. This effectively reduces the requirements for the synchronization of the brushless motor and can effectively promote the widespread application of UAVs.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV torsion arm rotor mechanism. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously, either fully or intermittently, by an onboard computer. Compared to manned aircraft, UAVs are often more suitable for tasks that are too "dull, dirty, or dangerous." UAVs can be categorized into military and civilian applications. In the military field, UAVs are divided into reconnaissance aircraft and target drones. In the civilian field, UAVs combined with industry applications represent the true necessity of UAVs. Currently, applications in aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, film and television shooting, and creating romantic moments have greatly expanded the uses of UAVs.

[0003] The torsion arm mechanism in drones is used in the main rotor mechanism. Its main function is to connect the transmission equipment and the guide mechanism. While rotating with the rotating ring, it transmits the tangential load of the rotor mechanism to the rotor shaft. However, existing drones generally adjust the drone's motion state by changing the speed of four brushless motors. The synchronization requirements of the four brushless motors that play a transmission role are too high, which is not conducive to the widespread application of drones. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a torsion arm rotor mechanism for drones, which solves the problem that existing drones have excessively high synchronization requirements for the four brushless motors that play a transmission role, which is not conducive to the widespread application of drones.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a torsion arm rotor mechanism for a drone, comprising a drone body, four connecting brackets evenly arranged on the outer side wall of the drone body, a coupling block provided on the side of each connecting bracket away from the drone body, a lifting component provided on the side of the coupling block away from the connecting bracket, a support base plate fixedly connected to the lower side wall of the drone body, a float fixedly connected inside the support base plate, and an automatically inflatable cushion provided inside the float; the coupling block consists of a connecting base block, a connecting middle block, and a transmission frame, the transmission frame being connected to the connecting base block and... The connecting blocks rotate, and a mating ball is slidably connected inside one end of the transmission frame. A return spring is provided inside the transmission frame and the inner side wall of the mating ball. The other end of the transmission frame is fixedly connected to the lifting component. Several mating slots are provided on one side wall of the connecting bracket, and the mating slots cooperate with the mating ball. The automatic air-inflating pad is folded and placed inside the floating block. An acidic solution is provided inside the automatic air-inflating pad. A powder storage pad is fixedly connected to the upper end of the automatic air-inflating pad. A diaphragm is fixedly connected inside the powder storage pad. Baking soda powder is provided on the upper side wall of the diaphragm inside the powder storage pad.

[0006] As an improvement of the present invention, a plurality of support legs are fixedly connected to the lower side wall of the support base plate for supporting the main body of the drone. The lower end of the support leg is set as a hemispherical shape and is made of rubber material to play a buffering role and reduce the impact force transmitted to the drone.

[0007] As a further improvement of the present invention, a mating groove is provided on one side of the connecting bracket, and the mating groove is fixedly connected to the connecting bottom block and the connecting middle block, so that the connecting bracket supports the coupling block.

[0008] As a further improvement of the present invention, a first transmission cover is fixedly connected to the upper side wall of the connecting block, and a first transmission gear is rotatably connected inside the first transmission cover. A second transmission cover is fixedly connected to the upper side wall of one end of the connecting bracket, and a second transmission gear is rotatably connected inside the second transmission cover. The first transmission gear and the second transmission gear mesh with each other. A drive motor is fixedly connected to the upper side wall of the second transmission cover. The output end of the drive motor is fixedly connected to the second transmission gear. The first transmission gear is fixedly connected to the transmission frame. The drive motor can drive the second transmission gear to rotate. When the second transmission gear rotates, it can drive the first transmission gear to rotate. When the first transmission gear rotates, it can drive the transmission frame to rotate, thereby driving the lifting assembly to rotate.

[0009] As a further improvement of the present invention, a brushless DC motor is fixedly connected to the upper side wall of the lifting component, a transmission rod is fixedly connected to the output end of the brushless DC motor, and a rotor is fixedly connected to the output end of the transmission rod. The brushless DC motor can drive the rotor to rotate through the transmission rod, thereby generating lift and driving the main body of the UAV to rise.

[0010] As a further improvement of the present invention, a sliding groove is provided on the lower inner wall of the drone body. An electromagnet block is fixedly connected to the bottom of the sliding groove, and a sliding block is slidably connected inside the sliding groove. A push rod is fixedly connected to the lower side wall of one end of the sliding block. The push rod is located directly above the powder storage pad. When the electromagnet block works, it generates magnetic force, which can pull the sliding block to move downward. The push rod presses the powder storage pad, causing the diaphragm inside the powder storage pad to rupture. Baking soda powder enters the automatic inflation pad. The baking soda powder reacts with the acidic solution inside the automatic inflation pad to rise carbon dioxide gas, and the automatic inflation pad completes the inflation process and expands.

[0011] As a further improvement of the present invention, a supporting inner plate is fixedly connected inside the main body of the drone. An integrated main board for the drone is provided on the upper side wall of the supporting inner plate and inside the main body of the drone, which is used to control the operation of the electrical components inside the main body of the drone. Several water immersion sensors are provided on the lower side wall of the supporting base plate, which are used to detect whether the main body of the drone is wetted by water.

[0012] As a further improvement of the present invention, the upper outer wall of the automatic inflation pad is fixedly connected to the lower side wall of the drone body, the powder storage pad penetrates through the lower side wall of the drone body, which facilitates the push rod to press the powder storage pad, and the lower outer wall of the powder storage pad is fixedly connected to the lower side wall of the drone body to prevent the powder storage pad from deforming and entering the automatic inflation pad.

[0013] The torsion arm rotor mechanism for unmanned aerial vehicles (UAVs) of the present invention has the following beneficial effects:

[0014] The invention incorporates a coupling block and a drive motor. When adjustments to the drone's flight status are needed, the drive motor can be activated. The drive motor drives the second transmission gear to rotate, which in turn drives the first transmission gear to rotate. The first transmission gear then drives the transmission frame to rotate, which in turn drives the lifting assembly to rotate. This alters the drone's lift state and consequently its motion state. In this invention, the drone's motion state is changed via the drive motor, eliminating the need to adjust the drone's rotation speed to regulate lift. This effectively reduces the requirements for brushless motor synchronization and promotes the widespread application of drones.

[0015] The system is equipped with an automatic inflation pad, a sliding block, and an electromagnet. When the bottom of the drone is submerged in water, the water immersion sensor controls the electromagnet via the drone's integrated motherboard. When the electromagnet is energized, it generates magnetic force, which pulls the sliding block downwards. The push rod presses down on the powder storage pad, causing the internal diaphragm to rupture. Baking soda powder enters the automatic inflation pad, reacting with the acidic solution inside to produce carbon dioxide gas. The automatic inflation pad then inflates and expands, allowing the device to float on the water surface. This enables the drone to land on the water, preventing it from sinking and effectively protecting it, thus improving its functionality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom of the present invention;

[0018] Figure 3 This is a schematic diagram of the coupling block structure in this invention;

[0019] Figure 4 This is a schematic diagram of the connecting bracket in the present invention;

[0020] Figure 5 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of point A;

[0022] In the attached figures, the following labels are used:

[0023] 1. UAV body; 101. Support inner plate; 102. UAV integrated motherboard; 2. Connecting bracket; 201. Mating groove; 202. Mating slot; 3. Coupling block; 301. Connecting bottom block; 302. Connecting middle block; 303. First transmission cover; 304. Drive motor; 305. Second transmission cover; 306. Transmission frame; 307. Mating ball; 4. Float block; 401. Automatic inflation pad; 4011. Acidic solution; 402. Powder storage pad; 4021. Baking soda powder; 4022. Diaphragm; 5. Support base plate; 501. Support leg; 502. Sliding groove; 5021. Electromagnet block; 503. Sliding block; 504. Push rod; 505. Water immersion sensor; 6. Lifting assembly; 601. Brushless DC motor; 602. Transmission rod; 603. Rotor. Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1-6 As shown, an embodiment of the present invention provides a drone torque arm rotor mechanism, including a drone body 1. A plurality of support legs 501 are fixedly connected to the lower side wall of a support base plate 5 for supporting the drone body 1. The lower end of the support legs 501 is hemispherical and made of rubber material to cushion the impact force transmitted to the drone. A support inner plate 101 is fixedly connected inside the drone body 1. A drone integrated motherboard 102 is provided on the upper side wall of the support inner plate 101 and inside the drone body 1 for controlling the operation of the internal electrical components of the drone body 1. A plurality of water immersion sensors 505 are provided on the lower side wall of the support base plate 5 for detecting whether the drone body 1 is wetted by water.

[0026] In this invention, four connecting brackets 2 are evenly arranged on the outer side wall of the drone body 1. Each connecting bracket 2 is provided with a coupling block 3 on the side away from the drone body 1. A lifting component 6 is provided on the side of the coupling block 3 away from the connecting bracket 2. A support base plate 5 is fixedly connected to the lower side wall of the drone body 1. A float 4 is fixedly connected inside the support base plate 5. An automatic inflation pad 401 is provided inside the float 4.

[0027] In this invention, a brushless DC motor 601 is fixedly connected to the upper side wall of the lifting component 6. A transmission rod 602 is fixedly connected to the output end of the brushless DC motor 601. A rotor 603 is fixedly connected to the output end of the transmission rod 602. The brushless DC motor 601 can drive the rotor to rotate through the transmission rod 602, thereby generating lift and driving the main body of the UAV 1 to rise.

[0028] In this invention, the coupling block 3 is composed of a connecting base block 301, a connecting middle block 302, and a transmission frame 306. The transmission frame 306 rotates between the connecting base block 301 and the connecting middle block 302. A mating groove 201 is provided on one side of the connecting bracket 2. The mating groove 201 is fixedly connected to both the connecting base block 301 and the connecting middle block 302, so that the connecting bracket 2 supports the coupling block 3. A mating ball 307 is slidably connected inside one end of the transmission frame 306. A return spring is provided on the inner side wall of the mating ball 307 and the inside of the transmission frame 306. The other end of the transmission frame 306 is fixedly connected to the lifting assembly 6. A plurality of mating slots 202 are provided on one side wall of the connecting bracket 2. The mating slots 202 engage with the mating balls 307. When the connecting bracket 2 rotates, the mating balls 307 will sequentially enter the mating slots 202. The mating slots 202 will affect the rotation of the mating balls 307. The display is activated, causing the transmission frame 306 to rotate at a fixed angle. A first transmission cover 303 is fixedly connected to the upper side wall of the connecting block 302. A first transmission gear is rotatably connected inside the first transmission cover 303. A second transmission cover 305 is fixedly connected to the upper side wall of one end of the connecting bracket 2. A second transmission gear is rotatably connected inside the second transmission cover 305. The first transmission gear meshes with the second transmission gear. A drive motor 304 is fixedly connected to the upper side wall of the second transmission cover 305. The output end of the drive motor 304 is fixedly connected to the second transmission gear. The first transmission gear is fixedly connected to the transmission frame 306. The drive motor 304 can drive the second transmission gear to rotate. When the second transmission gear rotates, it can drive the first transmission gear to rotate. When the first transmission gear rotates, it can drive the transmission frame 306 to rotate, thereby driving the lifting component 6 to rotate.

[0029] In this invention, an automatic inflation pad 401 is folded and placed inside a float 4. An acidic solution 4011 is disposed inside the automatic inflation pad 401. A powder storage pad 402 is fixedly connected to the upper end of the automatic inflation pad 401. A diaphragm 4022 is fixedly connected inside the powder storage pad 402. Baking soda powder 4021 is disposed on the upper sidewall of the diaphragm 4022 and inside the powder storage pad 402. A sliding groove 502 is provided on the lower inner wall of the drone body 1. An electromagnet block 5021 is fixedly connected to the bottom of the sliding groove 502. A sliding block 503 is slidably connected inside the sliding groove 502. A push rod 504 is fixedly connected to the lower sidewall of one end of the sliding block 503. The push rod 504 is located directly above the powder storage pad 402. When the electromagnet block 5021 operates, it generates magnetic force, enabling… Pulling the sliding block 503 downwards causes the push rod 504 to press the powder storage pad 402, causing the internal diaphragm 4022 of the powder storage pad 402 to rupture. The baking soda powder 4021 enters the automatic inflation pad 401. The baking soda powder 4021 reacts with the acidic solution inside the automatic inflation pad 401 to produce carbon dioxide gas. The automatic inflation pad 401 completes its inflation and expands. The upper outer wall of the automatic inflation pad 401 is fixedly connected to the lower side wall of the drone body 1. The powder storage pad 402 penetrates the lower side wall of the drone body 1, facilitating the push rod 504 to press the powder storage pad 402. The lower outer wall of the powder storage pad 402 is fixedly connected to the lower side wall of the drone body 1 to prevent the powder storage pad 402 from deforming and entering the automatic inflation pad 401.

[0030] Working principle: First, the brushless DC motor 601 is controlled by the integrated motherboard 102 of the drone. The brushless DC motor 601 drives the rotor to rotate through the transmission rod 602, thereby generating lift and lifting the main body of the drone 1. Next, during the flight of the drone, when it is necessary to adjust the flight status, the drive motor 304 can be activated. The drive motor 304 drives the second transmission gear to rotate, which in turn drives the first transmission gear to rotate. The rotation of the first transmission gear drives the transmission frame 306 to rotate, thereby driving the lifting components 6 to rotate. At this time, the combined lift generated by the four lifting components 6 will change, thereby changing the operating state of the drone. Then, when the drone is landed on the water surface, the water immersion sensor... Device 505 generates an electrical signal. Upon receiving the signal, the drone's integrated motherboard 102 energizes the electromagnet block 5021. When energized, the electromagnet block 5021 generates a magnetic force, which pulls the sliding block 503 downward. The push rod 504 presses the powder storage pad 402, causing the internal diaphragm 4022 of the powder storage pad 402 to rupture. The baking soda powder 4021 enters the automatic inflation pad 401. The baking soda powder 4021 reacts with the acidic solution inside the automatic inflation pad 401 to produce carbon dioxide gas. The automatic inflation pad 401 completes its inflation and expands, allowing the device to float on the water surface, effectively preventing damage to the drone. Finally, when the drone lands, the rubber support legs 501 act as a buffer, reducing the impact force transmitted to the drone and assisting in a safe landing.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone torsion arm rotor mechanism comprising a drone body, characterized in that: The outer side wall of the unmanned aerial vehicle body is uniformly provided with four connecting supports, the connecting support away from the unmanned aerial vehicle body is provided with a shaft coupling block, the shaft coupling block away from the connecting support is provided with a lifting assembly, the lower side wall of the unmanned aerial vehicle body is fixedly connected with a supporting bottom plate, the inside of the supporting bottom plate is fixedly connected with a floating block, and the inside of the floating block is provided with an automatic air mattress. The shaft coupling block is composed of a connecting bottom block, a connecting middle block and a transmission frame, the transmission frame rotates between the connecting bottom block and the connecting middle block, one end of the transmission frame is slidably connected with a matching ball, the inside of the matching ball and the inside of the transmission frame are provided with a return spring, the other end of the transmission frame is fixedly connected with the lifting assembly, one side wall of the connecting support is provided with a plurality of matching clamping grooves matched with the matching ball. The upper side wall of the connecting middle block is fixedly connected with a first transmission cover, the inside of the first transmission cover is rotatably connected with a first transmission gear, the upper side wall of one end of the connecting support is fixedly connected with a second transmission cover, the inside of the second transmission cover is rotatably connected with a second transmission gear, the first transmission gear is engaged with the second transmission gear, the upper side wall of the second transmission cover is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with the second transmission gear, and the first transmission gear is fixedly connected with the transmission frame. The lower inner wall of the unmanned aerial vehicle body is provided with a sliding groove, the bottom of the sliding groove is fixedly connected with an electromagnet block, the inside of the sliding groove is slidably connected with a sliding block, the lower side wall of one end of the sliding block is fixedly connected with a push rod, and the push rod is located directly above the powder storage pad.

2. The unmanned aerial vehicle torsion arm rotor mechanism of claim 1, wherein: The upper end of the automatic air mattress is fixedly connected with the lower side wall of the unmanned aerial vehicle body, the powder storage pad penetrates the lower side wall of the unmanned aerial vehicle body, and the lower end of the powder storage pad is fixedly connected with the lower side wall of the unmanned aerial vehicle body.

3. The unmanned aerial vehicle torsion arm rotor mechanism of claim 2, wherein: The inside of the unmanned aerial vehicle body is fixedly connected with a supporting inner plate, the upper side wall of the supporting inner plate and the inside of the unmanned aerial vehicle body are provided with an unmanned aerial vehicle integrated mainboard, and the lower side wall of the supporting bottom plate is provided with a plurality of water immersion sensors. The lower side wall of the supporting bottom plate is fixedly connected with a plurality of supporting legs, the lower end of the supporting leg is hemispherical, and the lower end of the supporting leg is made of rubber material. One side of the connecting support is provided with a matching groove, and the matching groove is fixedly connected between the connecting bottom block and the connecting middle block. The upper side wall of the connecting middle block is fixedly connected with a first transmission cover, the inside of the first transmission cover is rotatably connected with a first transmission gear, the upper side wall of one end of the connecting support is fixedly connected with a second transmission cover, the inside of the second transmission cover is rotatably connected with a second transmission gear, the first transmission gear is engaged with the second transmission gear, the upper side wall of the second transmission cover is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with the second transmission gear, and the first transmission gear is fixedly connected with the transmission frame. The lower inner wall of the unmanned aerial vehicle body is provided with a sliding groove, the bottom of the sliding groove is fixedly connected with an electromagnet block, the inside of the sliding groove is slidably connected with a sliding block, the lower side wall of one end of the sliding block is fixedly connected with a push rod, and the push rod is located directly above the powder storage pad. The upper end of the automatic air mattress is fixedly connected with the lower side wall of the unmanned aerial vehicle body, the powder storage pad penetrates the lower side wall of the unmanned aerial vehicle body, and the lower end of the powder storage pad is fixedly connected with the lower side wall of the unmanned aerial vehicle body. The inside of the unmanned aerial vehicle body is fixedly connected with a supporting inner plate, the upper side wall of the supporting inner plate and the inside of the unmanned aerial vehicle body are provided with an unmanned aerial vehicle integrated mainboard, and the lower side wall of the supporting bottom plate is provided with a plurality of water immersion sensors. When the unmanned aerial vehicle falls on the water surface, the water immersion sensor will generate an electric signal, the unmanned aerial vehicle integrated mainboard receiving the electric signal will power the electromagnet block, the electromagnet block will generate a magnetic force when powered, which can pull the sliding block to move downward, and the push rod will press the powder storage pad. The lower side wall of the supporting bottom plate is fixedly connected with a plurality of supporting legs, the lower end of the supporting leg is hemispherical, and the lower end of the supporting leg is made of rubber material. One side of the connecting support is provided with a matching groove, and the matching groove is fixedly connected between the connecting bottom block and the connecting middle block.

4. The unmanned aerial vehicle torsion arm rotor mechanism of claim 1, wherein: The upper side wall of the lifting assembly is fixedly connected with a brushless DC motor, an output end of the brushless DC motor is fixedly connected with a transmission rod, and an output end of the transmission rod is fixedly connected with a rotor.

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