Small unmanned aerial vehicle with foldable airfoils
By adopting the wing design of internal and external tooth meshing structures in small drones, combined with the driving mechanism of the drive motor and locking disc, the problem of material thickness and height increase in the prior art is solved, and the drone is realized Convenient folding and efficient deployment improve mobility and stability.
Patent Information
- Application Number
- CN202421109648.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The expansion speed of existing small foldable drones depends on the torsion torque of the worm spring or torsion spring. To strengthen the torsion torque of the torsion spring and the scroll spring, it is necessary to strengthen the thickness and height of the material, so that the folding mechanism is bloated and wasteless. precious space for machines.
A foldable wing surface drone including a fuselage, a first wing, a second wing, a drive motor and a locking disc is designed to rotate the wing through a meshing structure of the inner and outer teeth and drive it The motor drives the locking disc and wings to spread, reducing dependence on material thickness and height, and improving maneuverability and flight stability.
It realizes convenient folding of drones when not in use, reduces volume, is easy to carry and store, and at the same time improves the reliability and service life of drones.
Smart Images
Figure CN222202928U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of unmanned aerial vehicle wings, in particular to a small unmanned aerial vehicle with a foldable wing surface. Background Art
[0002] With the development of swarm drones, more and more small drones are adopting folding wing structures for the convenience of transportation and carrying more small drones. There are many ways to fold small drones. According to the different driving methods when the wings are unfolded, the wing folding-unfolding mechanism can be roughly divided into motor-driven, gas-actuated and spring-driven.
[0003] In the prior art, for example, the technical solution described in the patent with announcement number: CN215361829U is: a small retractable folding wing UAV wing, which uses a torsion spring to control the retractability and folding of the folding wing. The torsion spring realizes the retractability and folding of the folding wing by limiting its length.
[0004] In the prior art, the unfolding speed of a small foldable UAV depends on the torsional torque of a volute spring or a torsion spring. If the torsional torque of the torsion spring and the volute spring is to be strengthened, the thickness and height of the material need to be increased, thereby making the folding mechanism bulky and wasting precious space of the UAV. Utility Model Content
[0005] The purpose of the utility model is to provide a small UAV with foldable wings, so as to solve the problem in the prior art proposed in the background technology that the unfolding speed of the current small foldable UAV depends on the torsional torque of the volute spring or the torsion spring. If the torsional torque of the torsion spring and the volute spring is to be strengthened, the thickness and height of the material need to be strengthened, thereby making the folding mechanism bloated and wasting the precious space of the UAV.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A small unmanned aerial vehicle with a foldable wing surface comprises a fuselage, on which a wing assembly is arranged; the wing assembly comprises a first wing, a second wing, a driving motor and a locking plate; wherein the locking plate is arranged above the motor, and the first wing and the second wing are arranged between the motor and the locking plate;
[0008] A mounting groove is provided at the end of the first wing, and an internal tooth is provided inside the mounting groove; a mounting portion is provided at the end of the second wing, and an external tooth is provided on the mounting portion; the internal tooth and the external tooth are meshed for the rotation of the first wing and the second wing;
[0009] The output shaft of the driving motor is arranged through the first wing and the second wing, and is fixedly connected to the locking plate; the locking plate is also fixedly connected to the second wing.
[0010] According to the above technical solution, a connecting shaft is provided in the middle of the locking disk, a mounting hole is provided in the middle of the motor output shaft, the connecting shaft extends into the mounting hole and is fixedly connected to the motor output shaft.
[0011] According to the above technical solution, the connecting shaft is threadedly connected to the motor output shaft.
[0012] According to the above technical solution, a connecting hole is also provided on the locking plate, and a mounting hole is provided on the second wing. The connecting hole cooperates with the mounting hole to install bolts to fix the second wing and the linking plate.
[0013] According to the above technical solution, a cavity is further provided in the middle of the locking disk, and a first bearing is provided inside the cavity.
[0014] According to the above technical solution, the first bearing is sleeved on the motor output shaft, and two ends of the first bearing are respectively in contact with the second wing and the locking plate.
[0015] According to the above technical solution, a second bearing is arranged below the first wing, the second bearing is sleeved on the motor output shaft, and two ends of the second bearing are respectively in contact with the first wing and the drive motor.
[0016] According to the above technical solution, a limiting boss is provided on the first wing, a groove is provided on the second wing, and the limiting boss is embedded in the groove for installation of the first wing and the second wing.
[0017] According to the above technical solution, a recovery cavity is arranged on the fuselage, and the first wing and the second wing are arranged inside the recovery cavity.
[0018] According to the above technical solution, the wing assembly includes two sets, and the two sets of wing assemblies are respectively arranged at the two ends of the fuselage.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] In the utility model, the foldable design allows the drone to be conveniently folded up when not in use, thereby reducing the volume and making it easier to carry and store.
[0021] By fixedly connecting the driving motor to the locking plate and the locking plate to the second wing, the driving motor can drive the first wing and the second wing to unfold, and the design of the inner and outer teeth enables the first wing and the second wing to rotate, thereby increasing maneuverability and flight stability. The device in the utility model is simple and practical, easy to manufacture and maintain, and improves the reliability and service life of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the structure of the UAV of the utility model;
[0023] Figure 2 This is a schematic diagram of the internal structure of the UAV of the utility model;
[0024] Figure 3 It is a partial enlarged structural schematic diagram of point A of the utility model.
[0025] Markings in the figure: 100-fuselage, 200-first wing, 300-second wing, 400-drive motor, 500-locking plate, 600-mounting groove, 700-mounting part, 800-connecting shaft, 900-motor output shaft, 110-connecting hole, 111-mounting hole, 112-cavity, 113-first bearing, 114-second bearing, 115-recovery cavity. DETAILED DESCRIPTION
[0026] 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.
[0027] Embodiment 1
[0028] like Figure 1 As shown, a small drone with a foldable wing surface includes a fuselage 100, on which a wing assembly is arranged; the wing assembly includes a first wing 200, a second wing 300, a driving motor 400 and a locking plate 500; wherein the locking plate 500 is arranged above the motor, and the first wing 200 and the second wing 300 are arranged between the motor and the locking plate 500;
[0029] like Figure 2 As shown, a mounting groove 600 is provided at the end of the first wing 200, and an inner tooth is provided inside the mounting groove 600; a mounting portion 700 is provided at the end of the second wing 300, and an outer tooth is provided on the mounting portion 700; the inner tooth and the outer tooth are meshed for the rotation of the first wing 200 and the second wing 300;
[0030] The output shaft of the driving motor 400 is disposed through the first wing 200 and the second wing 300 , and is fixedly connected to the locking plate 500 ; the locking plate 500 is also fixedly connected to the second wing 300 .
[0031] In the utility model, the foldable design allows the drone to be conveniently folded up when not in use, thereby reducing the volume and making it easier to carry and store.
[0032] By the fixed connection between the driving motor 400 and the locking plate 500 and the fixed connection between the locking plate 500 and the second wing 300, the driving motor 400 can drive the first wing 200 and the second wing 300 to unfold, and the design of the inner and outer teeth enables the first wing 200 and the second wing 300 to rotate, thereby increasing the maneuverability and flight stability. The device in the utility model is simple and practical, easy to manufacture and maintain, and improves the reliability and service life of the drone.
[0033] Embodiment 2
[0034] This embodiment is a further refinement of the first embodiment.
[0035] like Figure 3 As shown, a connecting shaft 800 is disposed in the middle of the locking plate 500, a mounting hole 111 is disposed in the middle of the motor output shaft 900, and the connecting shaft 800 extends into the inside of the mounting hole 111 and is fixedly connected to the motor output shaft 900. The connecting shaft 800 is threadedly connected to the motor output shaft 900.
[0036] Specifically, the connecting shaft 800 is fixedly connected to the motor output shaft 900, so that when the driving motor 400 rotates, the locking plate 500 is driven to rotate together, thereby driving the first wing 200 and the second wing 300 to be unfolded or retracted.
[0037] like Figure 3 As shown, a connecting hole 110 is also provided on the locking plate 500, and a mounting hole 111 is provided on the second wing 300. The connecting hole 110 cooperates with the mounting hole 111 to install bolts to fix the second wing 300 and the linking plate.
[0038] Specifically, the connection holes 110 are evenly arranged on the locking plate 500. Preferably, there are four connection holes 110, and the four connection holes 110 are evenly arranged on the locking plate 500.
[0039] like Figure 3 As shown, a cavity 112 is further provided in the middle of the locking plate 500 , and a first bearing 113 is provided inside the cavity 112 .
[0040] Specifically, the cavity 112 is disposed in the middle of the locking disk 500 , and in order to avoid interference, the connecting hole 110 is disposed outside the cavity 112 .
[0041] Furthermore, a weight-reducing groove is provided on the locking disk 500 , and the weight of the locking disk 500 is further reduced by providing the weight-reducing groove, so that the locking disk 500 can rotate more smoothly when following the driving motor 400 .
[0042] like Figure 3As shown, the first bearing 113 is sleeved on the motor output shaft 900, and the two ends of the first bearing 113 are respectively in contact with the second wing 300 and the locking plate 500. A second bearing 114 is provided below the first wing 200, and the second bearing 114 is sleeved on the motor output shaft 900, and the two ends of the second bearing 114 are respectively in contact with the first wing 200 and the driving motor 400.
[0043] Specifically, the first bearing 113 and the second bearing 114 are both thrust bearings, such as cylindrical roller bearings. By arranging the first bearing 113 between the locking plate 500 and the second wing 300, the rotation between the locking plate 500 and the second wing 300 is smoother, and the friction between the locking plate 500 and the second wing 300 is reduced.
[0044] like Figure 3 As shown, by disposing the second bearing 114 between the first wing 200 and the driving motor 400 , the rotation between the first wing 200 and the driving motor 400 is made smoother.
[0045] like Figure 3 As shown, a limiting boss is provided on the first wing 200 , a groove is provided on the second wing 300 , and the limiting boss is embedded in the groove for installation of the first wing 200 and the second wing 300 .
[0046] By embedding the limiting boss into the inside of the groove, the first wing 200 and the second wing 300 are limited, which facilitates the installation of the first wing 200 and the second wing 300.
[0047] like Figure 1 As shown, a recovery cavity 115 is provided on the fuselage 100, and the first wing 200 and the second wing 300 are provided inside the recovery cavity 115. The wing assembly includes two sets, and the two sets of wing assemblies are respectively provided at both ends of the fuselage 100.
[0048] Further, two recovery chambers 115 are provided, one recovery chamber 115 is provided at the upper half of the fuselage 100, and the other recovery chamber 115 is provided at the lower half of the fuselage 100, and a set of wing assemblies are respectively provided inside the two recovery chambers 115, and the two sets of wing assemblies are arranged alternately. That is, the rotation center of one set of wing assemblies is provided at the end close to the fuselage 100, and the rotation center of the other set of wing assemblies is provided at the other end of the fuselage 100.
[0049] The working principle of the utility model is as follows: when in use, the locking plate 500 is driven to rotate by the driving motor 400, and the locking plate 500 is fixedly connected to the second wing 300, thereby driving the second wing 300 to rotate together, and the second wing 300 is engaged with the first wing 200. When the second wing 300 rotates, it will drive the first wing 200 to rotate in the opposite direction, thereby unfolding or retracting the first wing 200 and the second wing 300.
[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0051] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A small drone with foldable wings, characterized by: The invention comprises a fuselage (100), on which a wing assembly is arranged; the wing assembly comprises a first wing (200), a second wing (300), a driving motor (400) and a locking plate (500); wherein the locking plate (500) is arranged above the motor, and the first wing (200) and the second wing (300) are arranged between the motor and the locking plate (500); A mounting groove (600) is provided at the end of the first wing (200), and internal teeth are provided inside the mounting groove (600); a mounting portion (700) is provided at the end of the second wing (300), and external teeth are provided on the mounting portion (700); the internal teeth and the external teeth are meshed to enable the first wing (200) and the second wing (300) to rotate; The output shaft of the driving motor (400) is arranged through the first wing (200) and the second wing (300), and is fixedly connected to the locking plate (500); the locking plate (500) is also fixedly connected to the second wing (300).
2. A small drone with foldable wings according to claim 1, characterized in that: A connecting shaft (800) is arranged in the middle of the locking disk (500), a mounting hole (111) is arranged in the middle of the motor output shaft (900), and the connecting shaft (800) extends into the interior of the mounting hole (111) and is fixedly connected to the motor output shaft (900).
3. A small UAV with foldable wing surface according to claim 2, characterized in that: The connecting shaft (800) is threadedly connected to the motor output shaft (900).
4. A small UAV with foldable wing surface according to claim 1, characterized in that: A connecting hole (110) is also provided on the locking plate (500), and a mounting hole (111) is provided on the second wing (300). The connecting hole (110) cooperates with the mounting hole (111) to install bolts to fix the second wing (300) and the linking plate.
5. A small UAV with foldable wing surface according to claim 4, characterized in that: A cavity (112) is also provided in the middle of the locking disk (500), and a first bearing (113) is provided inside the cavity (112).
6. A small UAV with foldable wing surface according to claim 5, characterized in that: The first bearing (113) is sleeved on the motor output shaft (900), and two ends of the first bearing (113) are respectively in contact with the second wing (300) and the locking plate (500).
7. The small UAV with foldable wing surface according to claim 1, characterized in that: A second bearing (114) is arranged below the first wing (200). The second bearing (114) is sleeved on the motor output shaft (900), and two ends of the second bearing (114) are respectively in contact with the first wing (200) and the drive motor (400).
8. The small UAV with foldable wing surface according to claim 1, characterized in that: A limiting boss is provided on the first wing (200), a groove is provided on the second wing (300), and the limiting boss is embedded in the groove for mounting the first wing (200) and the second wing (300).
9. The small UAV with foldable wing surface according to claim 1, characterized in that: A recovery cavity (115) is arranged on the fuselage (100), and a first wing (200) and a second wing (300) are arranged inside the recovery cavity (115).
10. The small UAV with foldable wing surface according to claim 1, characterized in that: The wing assembly comprises two sets, and the two sets of wing assemblies are respectively arranged at two ends of the fuselage (100).