Quick lifting type unmanned aerial vehicle

Abstract

The rapid lifting type unmanned aerial vehicle comprises an unmanned aerial vehicle body, transverse extending shells are fixed to the front portions and the rear portions of the left side wall and the right side wall of the unmanned aerial vehicle body correspondingly, rotating servo motors are fixed in the transverse extending shells, and output shafts of the rotating servo motors stretch out of outer end plates of the transverse extending shells and are fixedly provided with transverse shafts; an outer annular connecting sleeve body is fixed to the outer end of the transverse shaft, and a duct fan is installed in the outer annular connecting sleeve body. A swing mechanism is installed on the bottom face of the transverse shaft and pushes the ducted fan to swing left and right. The ducted fan is adopted as power to achieve lifting flight of the unmanned aerial vehicle body, the lifting speed is high, the occupied space is small, the bearing effect is good, the air outlet angle can be adjusted according to needs, different flight requirements are met, the control precision is high, and the effect is good.

Description

Technical field:

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and more particularly to a fast-lifting unmanned aerial vehicle. Background technology:

[0002] As drone-related technologies become increasingly sophisticated, drones are widely used in military, industrial, agricultural, service and other fields. The load-bearing capacity of drones is generally provided by the lift of propellers. There are many types of drones, and for different drones, the number of propellers ranges from 1 to 4 pairs, or more. Drones can complete corresponding aerial flight and load-bearing tasks under specific conditions.

[0003] However, existing drones all use a propeller structure to achieve lifting. Due to the size limitation of the drone, it is impossible to install a propeller that is too large, which limits its load-bearing capacity and makes it unable to meet the transportation of some high-load-bearing objects. In addition, the lifting speed of propeller-type drones is not high and the transportation is limited. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a fast-lifting UAV, which uses a ducted fan as a power to achieve the lifting flight of the UAV body, has a fast lifting speed, occupies a small space, has a good load-bearing effect, and can adjust the air outlet angle as needed to meet different flight requirements, with high control accuracy and good effect.

[0005] The solution of the present invention to solve the technical problem is:

[0006] A fast lifting drone, comprising a drone body, wherein the front and rear portions of the left and right side walls of the drone body are both fixed with a transversely extending shell, a rotary servo motor is fixed in the transversely extending shell, an output shaft of the rotary servo motor extends out of an outer end plate of the transversely extending shell and is fixed with a transverse shaft, an outer end of the transverse shaft is fixed with an outer annular connecting sleeve, a ducted fan is installed in the outer annular connecting sleeve;

[0007] A swing mechanism is installed on the bottom surface of the transverse shaft, and the swing mechanism drives the duct fan to swing left and right.

[0008] A ducted fan is inserted into the middle part of the outer annular connecting sleeve, and two connecting plates are fixed on the outer side wall of the outer side end of the fan cylinder of the ducted fan. A middle connecting plate is fixed on the inner side wall of the outer side of the corresponding outer annular connecting sleeve. The middle connecting plate is located between the two connecting plates and is movably connected through a hinge shaft.

[0009] A horizontal supporting rib is fixed on the side wall of the connecting plate, and the inner end of the horizontal supporting rib is fixed on the outer side wall of the fan cylinder of the duct fan.

[0010] A fixing plate is fixed on the outer wall of the inner end of the fan cylinder of the duct fan, a second fixing plate is fixed on the inner wall of the inner side of the outer annular connecting sleeve corresponding to the fixing plate, one end of the buffer spring is fixed on the fixing plate, and the other end is fixed on the second fixing plate.

[0011] A supporting shell is fixed on the outer wall surface of the outer end plate of the laterally extending shell, a lower connecting block is fixed on the bottom surface of the bottom plate of the supporting shell, the connecting portion of the inner end of the electric push cylinder is movably connected through the lower connecting block via a hinge shaft, and the end of the push rod of the electric push cylinder is movably connected to the second connecting block fixed on the bottom outer wall at the inner side of the fan cylinder of the corresponding duct fan through the hinge shaft.

[0012] The outer end of the output shaft of the rotary servo motor is fixed or formed with a connecting flange plate, and the inner end of the transverse shaft is fixed or formed with an inner flange connecting plate. The inner flange connecting plate and the corresponding connecting flange plate are pressed against each other and fixedly connected by bolts.

[0013] The top and bottom surfaces of the outer end of the support shell are both fixed with connection blocks, and the middle parts of the opposite walls of the two connection blocks are formed with arc grooves, and the transverse shaft is inserted into the two arc grooves.

[0014] An arc-shaped slider is fixed on the inner side wall of the arc-shaped groove, the transverse shaft is located between the two arc-shaped sliders, the two arc-shaped sliders form a circular sliding sleeve, and the outer side wall of the transverse shaft is closely attached to the inner side wall of the circular sliding sleeve;

[0015] The inner flange connection plate of the inner end of the transverse shaft is located in the support housing.

[0016] Horizontal limit plates are fixed on the front and rear side walls of the transverse shaft;

[0017] A vertical limiting plate extending outward is fixed to the middle of the top surface of the outer end of the support shell, and the vertical limiting plate corresponds to the two horizontal limiting plates.

[0018] Elastic blocks are fixed on the front and rear wall surfaces of the vertical limiting plate, and the elastic blocks correspond to the two horizontal limiting plates.

[0019] A proximity switch is fixed on the top plate of the support shell, and the sensing end of the proximity switch extends out of the bottom surface of the top plate of the support shell and corresponds to the limit blocks fixed or formed on the front and rear side walls of the inner flange connecting plate.

[0020] The angle between the central axes of the two limiting blocks on the front and rear side walls of the inner flange connecting plate is less than 180°.

[0021] The angle between the two horizontal limiting plates is 180°.

[0022] A third fixing plate is fixed on the outer side walls of the front and rear ends of the fan cylinder of the ducted fan, and a fourth fixing plate is fixed on the inner side walls of the front and rear ends of the outer annular connecting sleeve corresponding to the third fixing plate, respectively. One end of the second buffer spring is fixed on the corresponding third fixing plate, and the other end is fixed on the corresponding fourth fixing plate.

[0023] The outstanding effects of the present invention are:

[0024] Compared with the existing technology, it uses a ducted fan as the power to achieve the lifting flight of the UAV body. It has high efficiency, fast lifting and navigation speed, large thrust (lifting force), large load capacity, which improves its use effect, and it occupies little space. It can adjust the air outlet angle as needed to meet different flight requirements, with high control accuracy and good effect. Description of the drawings:

[0025] Figure 1 It is a partial structural schematic diagram of the present invention;

[0026] Figure 2 yes Figure 1 A partial enlarged view of

[0027] Figure 3 is a partial top view of the present invention;

[0028] Figure 4 It is a partial cross-sectional view at the transverse axis. Specific implementation method:

[0029] For example, see Figures 1 to 4 As shown, a fast lifting UAV includes a UAV body 10, wherein the front and rear portions of the left and right side walls of the UAV body 10 are both fixed with a transversely extending shell 20, a rotary servo motor 21 is fixed in the transversely extending shell 20, an output shaft of the rotary servo motor 21 extends out of an outer end plate of the transversely extending shell 20 and is fixed with a transverse shaft 22, an outer end of the transverse shaft 22 is fixed with an outer annular connecting sleeve 30, a ducted fan 40 is installed in the outer annular connecting sleeve 30;

[0030] A swing mechanism 50 is installed on the bottom surface of the transverse shaft 22, and the swing mechanism 50 drives the duct fan 40 to swing left and right.

[0031] Furthermore, a duct fan 40 is inserted into the middle part of the outer annular connecting sleeve 30, and two connecting plates 42 are fixed on the outer wall of the outer end of the fan cylinder 41 of the duct fan 40, and an intermediate connecting plate 31 is fixed on the inner wall at the outer side of the corresponding outer annular connecting sleeve 30. The intermediate connecting plate 31 is located between the two connecting plates 42 and is movably connected through a hinge shaft.

[0032] Furthermore, a horizontal supporting rib plate 43 is fixed on the side wall of the connecting plate 42 , and an inner end of the horizontal supporting rib plate 43 is fixed on the outer side wall of the fan cylinder 41 of the duct fan 40 .

[0033] Furthermore, a fixing plate is fixed on the outer wall of the inner end of the fan cylinder 41 of the duct fan 40, a second fixing plate is fixed on the inner wall of the inner side of the outer annular connecting sleeve 30 corresponding to the fixing plate, and one end of the buffer spring 1 is fixed on the fixing plate and the other end is fixed on the second fixing plate.

[0034] Furthermore, the swing mechanism 50 includes an electric push cylinder 51, a support shell 60 is fixed on the outer wall surface of the outer end plate of the transversely extending shell 20, a lower connecting block 61 is fixed on the bottom surface of the bottom plate of the support shell 60, and the connecting portion of the inner end of the electric push cylinder 51 is movably connected through the lower connecting block 61 via a hinge shaft, and the end of the push rod of the electric push cylinder 51 is movably connected to the second connecting block fixed on the bottom outer wall at the inner side of the fan cylinder 41 of the corresponding duct fan 40 through the hinge shaft.

[0035] Furthermore, the outer end of the output shaft of the rotary servo motor 21 is fixed or formed with a connecting flange plate 23, and the inner end of the transverse shaft 22 is fixed or formed with an inner flange connecting plate 24, and the inner flange connecting plate 24 and the corresponding connecting flange plate 23 are pressed against each other and fixedly connected by bolts.

[0036] Furthermore, the top and bottom surfaces of the outer end of the support shell 60 are fixed with connecting blocks 63, and the middle parts of the opposite walls of the two connecting blocks 63 are formed with arc grooves, and the transverse shaft 22 is inserted into the two arc grooves.

[0037] Furthermore, an arc-shaped slider 64 is fixed on the inner side wall of the arc-shaped groove, the transverse shaft 22 is located between the two arc-shaped sliders 64, the two arc-shaped sliders 64 form a circular sliding sleeve, and the outer side wall of the transverse shaft 22 is in close contact with the inner side wall of the circular sliding sleeve;

[0038] The inner flange connection plate 24 of the inner end of the transverse shaft 22 is located in the support housing 60 .

[0039] Furthermore, horizontal limit plates 25 are fixed on the front and rear side walls of the transverse shaft 22;

[0040] A vertical limiting plate 65 extending outward is fixed to the middle of the top surface of the outer end of the support shell 60 , and the vertical limiting plate 65 corresponds to the two horizontal limiting plates 25 .

[0041] Elastic blocks 66 are fixed to the front and rear wall surfaces of the vertical limiting plate 65 , and the elastic blocks 66 correspond to the two horizontal limiting plates 25 .

[0042] Furthermore, a proximity switch 2 is fixed on the top plate of the support shell 60 , and the sensing end of the proximity switch 2 extends out of the bottom surface of the top plate of the support shell 60 and corresponds to the limit block 241 fixed or formed on the front and rear side walls of the inner flange connecting plate 24 .

[0043] The angle between the central axes of the two limiting blocks 241 on the front and rear side walls of the inner flange connecting plate 24 is less than 180°.

[0044] The angle between the two horizontal limiting plates 25 is 180°.

[0045] Furthermore, a rotary servo motor 21 is fixed to the inner side wall of the outer end plate of the transversely extending housing 20 , and a plurality of heat dissipation through holes 26 and a wire through hole 27 are formed on the bottom plate of the transversely extending housing 20 .

[0046] Furthermore, third fixing plates are fixed on the outer side walls of the front and rear ends of the fan cylinder 41 of the ducted fan 40, fourth fixing plates are fixed on the inner side walls of the front and rear ends of the outer annular connecting sleeve 30 corresponding to the third fixing plate, and one end of the second buffer spring 3 is fixed on the corresponding third fixing plate, and the other end is fixed on the corresponding fourth fixing plate.

[0047] Furthermore, a control mainboard and a lithium battery are fixed inside the drone body 10. The lithium battery, all rotating servo motors 21, the ducted fan 40, the electric push cylinder 51 and the proximity switch 2 are electrically connected to the control mainboard through electrical connecting lines. The lithium battery provides power to the control mainboard, all rotating servo motors 21, the ducted fan 40, the electric push cylinder 51 and the proximity switch 2, and controls the operation of all rotating servo motors 21, the ducted fan 40, the electric push cylinder 51 and the proximity switch 2 through the control mainboard.

[0048] At the same time, various cameras, GPS modules, Beidou positioning and navigation modules, etc. are installed on the drone body 10 to detect and determine the positions of surrounding objects in real time and transmit data to the control main board through signal lines.

[0049] A wireless communication module, such as a 5G communication module, is fixed on the control main board, which can transmit data to a control terminal (such as a mobile phone, etc.) through a 5G network, thereby displaying all operating information of the drone on a display screen of a remote operator. At the same time, the relative operation of this embodiment can be controlled by the control terminal. This method is basically the same as the control method of some existing drones and will not be described in detail here.

[0050] Furthermore, lower support frames 11 are fixed to the left and right parts of the bottom surface of the bottom plate of the drone body 10, rubber buffer blocks 12 are fixed to the bottom of the two lower support frames 11, and a supporting pressing plate 13 is fixed to the bottom surface of the rubber buffer blocks 12, which can reduce the impact.

[0051] Objects to be transported can be installed between the lower support frames 11 .

[0052] The ducted fan 40 in this embodiment includes a fan cylinder 41, in which a fan motor is inserted, and an impeller is fixed on the upper end of the fan motor. The impeller is an integral impeller that is machined and cut to ensure operating strength and is not easy to break. A plurality of connecting legs are fixed on the lower outer wall of the fan motor, and the outer ends of the connecting legs are welded and fixed on the inner wall of the fan cylinder 41. Under the same thrust or power requirements, the ducted power diameter of the ducted fan 40 is much smaller than that of an open propeller, which has obvious advantages in space-consuming applications. Moreover, it has strong thrust and good speed-up effect.

[0053] The duct fan 40, electric push cylinder 51, control main board and other components of this embodiment can be purchased on the market and will not be described in detail.

[0054] When this embodiment is in use, it can be operated through the corresponding rotating servo motor 21 to realize the forward or backward rotation of the duct fan 40 to change its air outlet direction. During rotation, the corresponding limit block 241 is sensed through the sensing end of the proximity switch 2, indicating that it has rotated to the maximum position. At this time, the corresponding horizontal limit plate 25 is pressed against the corresponding elastic block 66 to achieve limiting. At this time, the proximity switch 2 transmits the sensing signal to the control main board, and the control main board can control the rotating servo motor 21 to stop running, and can subsequently run in reverse to change the blowing direction of the duct fan 40.

[0055] At the same time, by pushing and retracting the push rod of the electric push cylinder 51, the corresponding duct fan 40 can be tilted outward or inward, thereby changing its blowing direction. The modification of these two blowing directions can change the operating direction and lifting of this embodiment to meet different operating needs.

[0056] When the present embodiment is just beginning to take off, the air outlets of the four ducted fans 40 are vertically facing downward, so that the present embodiment can be quickly lifted off. When the required height is reached, the four ducted fans 40 or part of the ducted fans 40 can be rotated to change the blowing direction, so as to achieve the lateral movement flight of the present embodiment. During this process, it is not necessary to change the operating power of the ducted fans 40, so that the present embodiment can fly quickly and have a good use effect.

[0057] At the same time, it can be pushed or retracted by the push rod of the corresponding electric push cylinder 51, so that the duct fan 40 can swing and further change its blowing direction, so that this embodiment can perform operations such as turning as needed to meet the needs of mobile transportation.

[0058] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A fast-lifting UAV, comprising a UAV body (10), characterized in that: A transversely extending housing (20) is fixed to the front and rear of the left and right side walls of the drone body (10), a rotary servo motor (21) is fixed in the transversely extending housing (20), an output shaft of the rotary servo motor (21) extends out of an outer end plate of the transversely extending housing (20) and is fixed with a transverse shaft (22), an outer annular connecting sleeve (30) is fixed to the outer end of the transverse shaft (22), and a ducted fan (40) is installed in the outer annular connecting sleeve (30); A swing mechanism (50) is installed on the bottom surface of the transverse shaft (22), and the swing mechanism (50) drives the duct fan (40) to swing left and right.

2. A fast-lifting UAV according to claim 1, characterized in that: A duct fan (40) is inserted into the middle of the outer annular connecting sleeve (30), and two connecting plates (42) are fixed on the outer side wall of the outer side end of the fan cylinder (41) of the duct fan (40), and an intermediate connecting plate (31) is fixed on the inner side wall at the outer side of the corresponding outer annular connecting sleeve (30), and the intermediate connecting plate (31) is located between the two connecting plates (42) and is movably connected via a hinge shaft.

3. A fast-lifting UAV according to claim 2, characterized in that: A horizontal supporting rib plate (43) is fixed on the side wall of the connecting plate (42), and the inner end of the horizontal supporting rib plate (43) is fixed on the outer side wall of the fan cylinder (41) of the duct fan (40).

4. The fast-lifting UAV according to claim 2, characterized in that: A fixing plate is fixed on the outer wall of the inner end of the fan cylinder (41) of the duct fan (40), a second fixing plate is fixed on the inner wall of the inner side of the outer annular connecting sleeve (30) corresponding to the fixing plate, and one end of the buffer spring (1) is fixed on the fixing plate and the other end is fixed on the second fixing plate.

5. The fast-lifting UAV according to claim 4, characterized in that: The swing mechanism (50) includes an electric push cylinder (51), a support shell (60) is fixed on the outer wall surface of the outer end plate of the transversely extending shell (20), a lower connecting block (61) is fixed on the bottom surface of the bottom plate of the support shell (60), the connecting portion of the inner end of the electric push cylinder (51) is movably connected through the lower connecting block (61) via a hinge shaft, and the end of the push rod of the electric push cylinder (51) is movably connected to the second connecting block fixed on the bottom outer wall at the inner side of the fan cylinder (41) of the corresponding duct fan (40) through the hinge shaft.

6. The fast-lifting UAV according to claim 5, characterized in that: A connecting flange plate (23) is fixed or formed on the outer end of the output shaft of the rotary servo motor (21), and an inner flange connecting plate (24) is fixed or formed on the inner end of the transverse shaft (22). The inner flange connecting plate (24) and the corresponding connecting flange plate (23) are pressed against each other and fixedly connected by bolts.

7. The fast-lifting UAV according to claim 5, characterized in that: The top and bottom surfaces of the outer end of the support shell (60) are both fixed with connection blocks (63), and arc-shaped grooves are formed in the middle of the opposite wall surfaces of the two connection blocks (63), and the transverse shaft (22) is inserted into the two arc-shaped grooves.

8. The fast-lifting UAV according to claim 7, characterized in that: An arc-shaped slider (64) is fixed on the inner side wall of the arc-shaped groove, the transverse shaft (22) is located between the two arc-shaped sliders (64), the two arc-shaped sliders (64) form a circular sliding sleeve, and the outer side wall of the transverse shaft (22) is tightly attached to the inner side wall of the circular sliding sleeve; The inner flange connection plate (24) of the inner end of the transverse shaft (22) is located in the support housing (60).

9. The fast-lifting UAV according to claim 7, characterized in that: Horizontal limit plates (25) are fixed on the front and rear side walls of the transverse shaft (22); A vertical limiting plate (65) extending outward is fixed to the middle of the top surface of the outer end of the support shell (60), and the vertical limiting plate (65) corresponds to the two horizontal limiting plates (25).

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