Unmanned aerial vehicle convenient to disassemble and assemble propeller type lift device

Abstract

The utility model provides an unmanned aerial vehicle with a propeller type lifting device convenient to disassemble and assemble, which is used for solving the problems of complicated disassembly and assembly and infirm connection in the prior art. The unmanned aerial vehicle comprises a fuselage, wings are clamped and fixed to the two sides of the fuselage, take-off and landing modules are arranged on the bottom faces of the wings, each take-off and landing module comprises an upper clamping plate and a lower clamping plate, one face of each upper clamping plate is fixedly connected with the corresponding wing, multiple fixing blocks are fixed to the two sides of the other face of each upper clamping plate through cushion blocks, and the ends, away from the cushion blocks, of the fixing blocks and the upper clamping plates form clamping grooves. Positioning grooves allowing the fixing blocks to penetrate through are formed in the two sides of the lower clamping plate, the lower clamping plate can move along the clamping grooves, the end, close to the lower clamping plate, of the fixing plate can abut against the end face of the upper clamping plate, and a propeller type lift device is fixed to the lower clamping plate through a connecting rod. According to the utility model, the upper clamping plate and the lower clamping plate are clamped through the fixing block and the positioning groove, so that the quick clamping of the propeller type lift device and the wing is realized, and the installation efficiency of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle with a propeller-type lifting device that is easy to disassemble and install. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device. With the development of science and technology, vertical take-off and landing fixed-wing drones were born. Vertical take-off and landing fixed-wing drones are drones that can take off and land vertically without a runway. They combine the advantages of long range, high speed and long endurance of fixed-wing drones with the vertical take-off and landing capabilities of helicopters.

[0003] The Chinese patent with application number 202122744780.9 discloses a wing structure for a vertical take-off and landing UAV. The tail of the fuselage is connected to a tail wing, and the head is connected to a propeller-type lift device; there are two wings, symmetrically connected on both sides of the fuselage; each wing is connected to the rotor mechanism through a movable connector. This can reduce air resistance and facilitate folding, which is conducive to quick disassembly and installation, and is also convenient for transportation and storage. The above scheme has the following problems: the propeller-type lift device has a certain weight, and its arms are only hinged by hinge shafts. When folded, the hinge is easily damaged under the influence of the gravity of the propeller-type lift device, which greatly affects the stability and safety of the UAV, and the sleeve needs to be completely disassembled during installation or folding, which makes disassembly and installation inconvenient. Utility Model Content

[0004] The utility model provides a drone with a propeller lift device that is easy to disassemble and install, solving the problems of complicated disassembly and assembly and unreliable connection in the prior art.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The invention discloses an unmanned aerial vehicle (UAV) which is easy to disassemble and install a propeller-type lifting device, comprising a fuselage, wings being clamped and fixed on both sides of the fuselage, a take-off and landing module being arranged on the bottom surface of the wing, the take-off and landing module comprising an upper clamping plate and a lower clamping plate, one side of the upper clamping plate being fixedly connected to the wing, and a plurality of fixing blocks being fixed on both sides of the other side through pads, a fixing groove being formed with the upper clamping plate at one end of the fixing block away from the pad, positioning grooves for the fixing blocks to pass through being arranged on both sides of the lower clamping plate, the lower clamping plate being movable along the clamping groove, a fixing plate being fixed to one end of the lower clamping plate away from the clamping groove through an elastic connecting plate, the fixing plate being higher than the lower clamping plate, and an end of the fixing plate close to the lower clamping plate being able to abut against the end surface of the upper clamping plate, a connecting rod being fixed to the lower clamping plate through a clamp, and a propeller-type lifting device being fixed at both ends of the connecting rod.

[0007] Furthermore, a keypad is fixed at the bottom of the fixing plate, one end of the keypad is fixed on the fixing plate, and the other end is away from the fixing plate. By extending the lever arm of the keypad fixed on the fixing plate, the user can generate a large disassembly torque with a small force, thereby achieving an effect of facilitating disassembly. Since the disassembly process is simple and quick, the user can complete disassembly and reassembly in a short time, saving valuable time and resources.

[0008] Furthermore, the thickness of the elastic connecting plate is smaller than the thickness of the upper clamping plate and the lower clamping plate, and the thickness of the fixed plate is greater than or equal to the thickness of the upper clamping plate. By adjusting the thickness of the elastic connecting plate, better mechanical properties can be achieved, so that during the disassembly and installation process, the clamping structure can evenly withstand the force and extend the service life.

[0009] Furthermore, the lower clamping plate is provided with a plurality of oblong holes, and a limit pin is fixed on the bottom surface of the upper clamping plate, and when the lower clamping plate moves along the clamping groove, the limit pin can slide in the oblong hole. When subjected to external force, the cooperation between the limit pin and the oblong hole can limit the excessive displacement of the upper clamping plate relative to the lower clamping plate, thereby avoiding structural damage or functional failure.

[0010] Furthermore, the wings on both sides of the fuselage are provided with the same turboprops, turbofans or turbojets. By providing the same turboprops, turbofans or turbojets on the wings, it has significant beneficial effects in improving flight efficiency, enhancing flight stability and improving reliability, which not only improves the performance and quality of the aircraft, but also reduces production and maintenance costs.

[0011] Furthermore, there are two propeller-type lift devices at one end of the connecting rod, and they are symmetrically arranged up and down along the connecting rod. The two symmetrically arranged propeller-type lift devices can provide a more stable thrust distribution during flight, which helps to improve the flight stability and controllability of the UAV.

[0012] Furthermore, the upper clamping plate, the lower clamping plate, the elastic connecting plate, the fixing plate and the connecting rod are all made of carbon fiber composite materials.

[0013] Furthermore, the clamps are multiple, and the clamps include an upper clamp and a lower clamp. The upper clamp includes an upper arc-shaped connecting plate, and connecting columns are fixed at both ends of the upper arc-shaped connecting plate, and through holes are provided in the connecting columns. The lower clamp includes a lower arc-shaped connecting plate, and connecting ears are provided on both sides of the lower arc-shaped connecting plate. The connecting ears are provided with connecting holes corresponding to the through holes, and bolts pass through the connecting holes and the connecting columns to be fixedly connected with the lower clamping plate. The connecting rod is fixed to the lower clamping plate by bolts, the upper clamp and the lower clamp, and can be easily installed and disassembled, thereby improving the convenience of maintenance.

[0014] Beneficial effects:

[0015] The upper and lower clamping plates of the utility model are clamped together by means of a fixing block and a positioning groove, thereby realizing a quick clamping connection between the propeller lift device and the wing, improving the installation efficiency of the product, and also reducing the trouble of the user when installing the propeller lift device. The deformation and restoration of the elastic connecting plate enable the fixing plate to be clamped with the upper clamping plate, and can ensure that the drone can maintain good stability and safety during flight. By extending the lever arm through the key plate fixed on the fixing plate, the user can generate a larger disassembly torque with less force, thereby achieving the effect of facilitating disassembly. The lower clamping plate stably fixes the connecting rod that fixes the propeller lift device under the wing through a clamp, and the stable connection between the connecting rod and the propeller lift device enables the wing to provide sufficient support for the propeller lift device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper clamping plate and the lower clamping plate of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper clamping plate and the lower clamping plate of the utility model when viewed from above;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 It is an exploded view of the upper clamping plate and the lower clamping plate of the utility model;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the clamp of the utility model.

[0023] Among them: 1. fuselage, 2. wing, 3. upper clamping plate, 4. lower clamping plate, 5. fixing block, 6. cushion block, 7. clamping groove, 8. positioning groove, 9. elastic connecting plate, 10. fixing plate, 11. clamp, 12. connecting rod, 13. propeller lift device, 14. button plate, 15. oblong hole, 16. limit pin, 19. upper arc connecting plate, 20. connecting column, 21. lower arc connecting plate, 22. connecting ear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, an embodiment of the utility model provides an unmanned aerial vehicle that is easy to disassemble and install a propeller-type lift device, comprising a fuselage 1, wings 2 are clamped and fixed on both sides of the fuselage 1, a take-off and landing module is arranged on the bottom surface of the wing 2, and the take-off and landing module comprises an upper clamping plate 3 and a lower clamping plate 4, one side of the upper clamping plate 3 is fixedly connected to the wing 2, and a plurality of fixing blocks 5 are fixed on both sides of the other side through a cushion block 6, and one end of the fixing block 5 away from the cushion block 6 forms a clamping groove 7 with the upper clamping plate 3, and positioning grooves 8 for the fixing block 5 to pass through are arranged on both sides of the lower clamping plate 4, and the lower clamping plate 4 can move along the clamping groove 7, and one end of the lower clamping plate 4 away from the clamping groove 7 is fixed with a fixing plate 10 through an elastic connecting plate 9, the fixing plate 10 is higher than the lower clamping plate 4, and one end of the fixing plate 10 close to the lower clamping plate 4 can be against the end surface of the upper clamping plate 3, and the lower clamping plate 4 is fixed with a connecting rod 12 through a clamp 11, and both ends of the connecting rod 12 are fixed with a propeller-type lift device 13.

[0026] In order to reduce the volume of the drone during transportation and protect the propeller lift device 13, the wing 2 can be disconnected from the fuselage 1, and similarly, the upper clamping plate 3 and the lower clamping plate 4 can also be separated. When leaving the factory, the wing 2 and the upper clamping plate 3 are pre-assembled together, and the propeller lift device 13, the connecting rod 12 and the lower clamping plate 4 are also pre-assembled as a whole. In this way, after receiving the product, the user only needs to perform a simple clamping operation to complete the assembly of the drone, which greatly reduces the user's workload. When installation is required, the wing 2 and the fuselage 1 are clamped and fixed. The clamping and fixing method of the wing 2 and the fuselage 1 is not limited. They can be fixed by bolts or clamping after plugging. As long as the wing 2 and the fuselage 1 can be stably fixed, the positioning groove 8 of the lower clamping plate 4 is passed through the fixing block 5, so that the side wall of the positioning groove 8 corresponds to the clamping groove 7. At this time, the fixing plate 10 is against the upper clamping plate 3, and the elastic connecting plate 9 is deformed, pushing the lower clamping plate 4, so that the side wall at the positioning groove 8 is placed in the clamping groove 7. When it is completely placed in the clamping groove 7, the fixing plate 10 is completely extended from the upper clamping plate 3, and the elastic recovery characteristics of the elastic connecting plate 9 are used to achieve the rapid connection of the upper clamping plate 3 and the lower clamping plate 4, so as to achieve the effect of quickly installing the connecting rod 12 and the bolt paddle 13. The connecting rod 12, the propeller lift device 13 and the lower clamping plate 4 are pre-assembled, so that the propeller lift device 13 can be better protected during transportation. The propeller-type lift device may specifically be a propeller.

[0027] like Figure 3-5 As shown, a key plate 14 is fixed at the bottom of the fixing plate 10, one end of the key plate 14 is fixed on the fixing plate 10, and the other end is away from the fixing plate 10. In order to facilitate the removal of the lower snap-on plate 4, by arranging the key plate 14 at the bottom of the fixing plate 10, and using the structure that one end of the key plate 14 is fixed and the other end is away from the fixing plate 10, the lever arm can be effectively extended, and the user can generate a larger disassembly torque with a smaller force, so that the lower snap-on plate 4 can be removed more easily and quickly. During the disassembly process, the fixing plate 10 is pressed downward to cause the fixing plate 10 to drive the connecting plate to deform. When the fixing plate 10 is lower than the upper snap-on plate 3, the fixing plate 10 is pushed at the same time, and the lower snap-on plate 4 can be pushed out of the positioning groove 8, so as to realize the rapid removal of the lower snap-on plate 4. By extending the lever arm, a stronger elastic connecting plate 9 can be used, so that the fixing plate 10 can better abut against the end face of the upper snap-on plate 3 during the flight of the drone, thereby improving the stability and reliability of the connection structure between the upper snap-on plate 3 and the lower snap-on plate 4.

[0028] like Figure 4As shown, the thickness of the elastic connecting plate 9 is less than the thickness of the upper clamping plate 3 and the lower clamping plate 4, and the thickness of the fixing plate 10 is greater than or equal to the thickness of the upper clamping plate 3. Although the thickness of the elastic connecting plate 9 is less than the thickness of the upper clamping plate 3 and the lower clamping plate 4, it is sufficient to provide sufficient elasticity and supporting force to ensure a stable connection between the fixing plate 10 and the upper clamping plate 3, thereby ensuring the stability of the flight process. By making the thickness of the fixing plate 10 greater than or equal to the thickness of the upper clamping plate 3, it is ensured that the fixing plate 10 has sufficient strength and rigidity. When the fixing plate 10 is subjected to pressure, due to its large thickness, it can better resist deformation, so that the fixing plate 10 has a stronger supporting force and anti-bending ability, and prevents the fixing plate 10 from falling off due to accidental bending of the connecting plate, thereby improving the safety during use.

[0029] like Figure 3 As shown, the lower clamping plate 4 is provided with a plurality of oblong holes 15, and a limiting pin 16 is fixed on the bottom surface of the upper clamping plate 3. When the lower clamping plate 4 moves along the clamping groove 7, the limiting pin 16 can slide in the oblong hole 15. The limiting pin 16 can slide in the oblong hole 15, but is limited by the hole in the axial direction, so that the upper clamping plate 3 can be accurately aligned with the lower clamping plate 4 in a specific axial position. Even if the clamping position of the upper clamping plate 3 and the lower clamping plate 4 is slightly deviated, the limiting pin 16 and the oblong hole 15 can achieve correct matching, simplifying the assembly process. The sliding of the limiting pin 16 in the oblong hole 15 can effectively limit unnecessary degrees of freedom, thereby enhancing the connection stability between the upper clamping plate 3 and the lower clamping plate 4, and ensuring the firm fixation of the propeller lift device 13 and the wing 2.

[0030] like Figure 1 As shown, the wings 2 on both sides of the fuselage 1 are provided with identical turboprops, turbofans or turbojets. When the UAV performs maneuvering flight, such as rolling or sharp turns, the two identical engines can provide symmetrical thrust, providing good stability and maneuverability for the UAV. By adopting proven and widely used turboprop, turbofan or turbojet engines, it can be ensured that the engines have high reliability, reducing the risk of flight accidents caused by engine failures, and improving the overall reliability of the UAV.

[0031] like Figure 1 , 2As shown, there are two propeller lift devices 13 at one end of the connecting rod 12, and they are symmetrically arranged along the connecting rod 12. The two propeller lift devices 13 can improve the stability of the flight. The two propeller lift devices 13 are symmetrically arranged along the connecting rod 12, which can provide balanced lift and torque during flight, thereby improving the stability of the flight. And if one of the propeller lift devices 13 fails or its performance degrades, the other propeller lift device 13 that is operating normally can still maintain the basic performance of the drone, provide better horizontal performance, and provide more safety guarantees for emergency landing.

[0032] The upper clamping plate 3, the lower clamping plate 4, the elastic connecting plate 9, the fixing plate 10 and the connecting rod 12 are all made of carbon fiber composite materials. The use of carbon fiber composite materials can significantly reduce the overall weight of the drone while maintaining or improving the strength and rigidity of the structure. By reducing the weight of the structure, more space can be left for other payloads (such as more fuel, larger photographic equipment, etc.), thereby expanding the use function of the drone. In addition, the elasticity of the elastic connecting plate 9 made of carbon fiber material can ensure the stable connection between the fixing plate 10 and the upper clamping plate 3.

[0033] like Figure 5 , 6 As shown, the clamp 11 is multiple, and the clamp 11 includes an upper clamp and a lower clamp. The upper clamp includes an upper arc-shaped connecting plate 19, and connecting columns 20 are fixed at both ends of the upper arc-shaped connecting plate 19. The connecting columns 20 are provided with through holes. The lower clamp includes a lower arc-shaped connecting plate 21, and connecting ears 22 are provided on both sides of the lower arc-shaped connecting plate 21. The connecting ears 22 are provided with connecting holes corresponding to the through holes. Bolts penetrate the connecting holes and the connecting columns 20 and are fixedly connected to the lower clamping plate 4. Multiple clamps 11 can provide multi-point fixation, disperse the concentration of stress, enhance the stability and bearing capacity of the connection between the lower connecting plate and the connecting rod 12, and the clamp 11 can provide additional damping, which helps to reduce the impact of the vibration of the propeller lift device 13 on the wing 2. If one clamp 11 fails, the other clamps 11 can still maintain the integrity of the connection, thereby providing additional safety protection and ensuring the normal operation and safety of the drone. In addition, the standardized clamp 11 has good interchangeability, which is convenient for inventory management and later maintenance.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle (UAV) for easily disassembling and installing a propeller-type lift device, comprising a fuselage (1), with wings (2) fixedly connected to both sides of the fuselage (1), characterized in that: The bottom surface of the wing (2) is provided with a take-off and landing module, which comprises an upper clamping plate (3) and a lower clamping plate (4), one side of the upper clamping plate (3) is fixedly connected to the wing (2), and a plurality of fixing blocks (5) are fixed on both sides of the other side through cushion blocks (6), and one end of the fixing block (5) away from the cushion block (6) forms a clamping groove (7) with the upper clamping plate (3), and positioning grooves (8) for the fixing block (5) to pass through are provided on both sides of the lower clamping plate (4), and the lower clamping plate (4) The lower clamping plate (4) can move along the clamping groove (7); one end of the lower clamping plate (4) away from the clamping groove (7) is fixed with a fixing plate (10) via an elastic connecting plate (9); the fixing plate (10) is higher than the lower clamping plate (4); and one end of the fixing plate (10) close to the lower clamping plate (4) can abut against the end surface of the upper clamping plate (3); the lower clamping plate (4) is fixed with a connecting rod (12) via a clamp (11); and propeller-type lift devices (13) are fixed at both ends of the connecting rod (12).

2. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: A key plate (14) is fixed to the bottom of the fixing plate (10); one end of the key plate (14) is fixed to the fixing plate (10) and the other end is away from the fixing plate (10).

3. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: The thickness of the elastic connection plate (9) is smaller than the thickness of the upper clamping plate (3) and the lower clamping plate (4), and the thickness of the fixing plate (10) is greater than or equal to the thickness of the upper clamping plate (3).

4. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: The lower clamping plate (4) is provided with a plurality of oblong holes (15), and a limit pin (16) is fixed on the bottom surface of the upper clamping plate (3). When the lower clamping plate (4) moves along the clamping groove (7), the limit pin (16) can slide in the oblong hole (15).

5. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: There are two propeller-type lifting devices (13) at one end of the connecting rod (12), and they are symmetrically arranged up and down along the connecting rod (12).

6. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: The upper clamping plate (3), the lower clamping plate (4), the elastic connecting plate (9), the fixing plate (10) and the connecting rod (12) are all made of carbon fiber composite materials.

7. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: The clamp (11) is multiple, and the clamp (11) includes an upper clamp and a lower clamp. The upper clamp includes an upper arc-shaped connecting plate (19), and connecting columns (20) are fixed at both ends of the connecting plate. The connecting columns (20) are provided with through holes. The lower clamp includes a lower arc-shaped connecting plate (21), and connecting ears (22) are provided on both sides of the connecting plate. The connecting ears (22) are provided with connecting holes corresponding to the through holes. Bolts penetrate the connecting holes and the connecting columns (20) to be fixedly connected with the lower clamping plate (4).

8. The UAV with propeller lift device that is easy to disassemble and install according to claim 1, characterized in that: The wings (2) on both sides of the fuselage (1) are provided with identical turboprops, turbofans or turbojets.

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