Unmanned aerial vehicle convenient to fold

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle convenient to fold, which is structurally characterized in that a plurality of hinge seats distributed at different positions of a vehicle body are arranged on the vehicle body, a hinge block is movably hinged in each hinge seat, and each hinge block is connected with a swing rod; when the unmanned aerial vehicle is in an unfolded state, all the swing rods extend towards the outside of the vehicle body, and the ends, away from the vehicle body, of all the swing rods are provided with traction mechanisms used for driving the unmanned aerial vehicle to ascend and descend correspondingly. When the unmanned aerial vehicle needs to be switched to be in a folded state, the hinge block rotates in the hinge seat to enable the swing rod and the traction mechanism to deflect in the direction of the vehicle body and be folded on the vehicle body. According to the unmanned aerial vehicle convenient to fold, the propeller part of the unmanned aerial vehicle can be folded on the vehicle body, and the technical problem that the unmanned aerial vehicle is not easy to store is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a foldable unmanned aerial vehicle. Background Art

[0002] UAV, or unmanned aircraft, is an unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or operated completely or intermittently autonomously by an onboard computer. In military applications, UAVs can be used as reconnaissance aircraft and target aircraft, while in civilian applications, UAVs can be used in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, etc., which greatly expands the use of UAVs themselves. At present, the market is also actively expanding industry applications and developing UAV technology.

[0003] Currently, most drones have a complex structure, especially the propeller part which cannot be stored on the body, resulting in the drone being difficult to store. Since the propeller part of the drone cannot be stored when not in use, it is easy to be damaged during transportation or transfer. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a foldable drone, which can realize that the propeller part of the drone can be folded on the body, thereby solving the technical problem that the drone is difficult to store.

[0005] The utility model discloses a foldable drone, comprising a body, wherein a plurality of hinge seats distributed at different positions on the body are arranged on the body, a hinge block is movably hinged in the clamping mouth of each hinge seat, and each hinge block is respectively connected to a swing rod;

[0006] When the UAV is in the unfolded state, each of the swing arms extends toward the outside of the body, and a traction mechanism for driving the UAV to rise and fall is disposed at one end of each swing arm away from the body;

[0007] When the drone needs to be switched to a folded state, the swing arm and the traction mechanism are deflected toward the body and folded on the body through the rotation of the hinge block in the hinge seat.

[0008] According to the utility model, a foldable drone, the traction mechanism includes a motor and a propeller, the rotation center of the propeller is connected to the power output shaft of the motor, and the motor is fixedly arranged on the end of the swing arm away from the body.

[0009] According to the utility model, a foldable drone is provided, wherein the body comprises a square frame, each of the hinged seats is provided with a connecting frame, and each of the connecting frames is fixedly connected to four diagonal corners of the square frame.

[0010] According to the utility model, a foldable drone is provided, and a transport box is mounted in the square frame.

[0011] According to the utility model, a foldable drone is provided with an obstacle avoidance radar on the top of the body.

[0012] According to the utility model, a foldable drone is provided with a pivot shaft in the clamping opening of the articulated seat; the articulated blocks are respectively sleeved in the clamping openings of the articulated seats and are pivotally connected to the pivot shaft;

[0013] When the traction mechanism on the machine body needs to be deployed, the hinge block rotates around the pivot axis in the hinge seat, causing the free end of the swing rod to swing away from the machine body;

[0014] When the traction mechanism on the machine body needs to be folded, the hinge block rotates around the pivot axis in the hinge seat, causing the free end of the swing rod to swing and return to the machine body.

[0015] According to the utility model, a foldable drone is provided, wherein the clamping openings of the hinged seats distributed on the front side of the body face the rear side of the body; and the clamping openings of the hinged seats distributed on the rear side of the body face the front side of the body.

[0016] According to the utility model, a foldable drone is provided, wherein the hinge seat clamps distributed on the front and rear sides of the body are tilted at a certain angle in opposite directions upward and downward, so that the swing arms arranged on the front and rear sides of the body can be tilted in opposite directions upward and downward and folded on the body when folded.

[0017] According to the utility model, a foldable drone is provided with a plurality of elastic jackets on the side wall of the body, and each of the swing arms is clamped in a clamping opening of each elastic jacket when folded on the body.

[0018] According to the utility model, a drone that is easy to fold is provided with an arm buckle between the articulated block and the articulated seat;

[0019] The outer wall of the hinge block is provided with a spring sheet suitable for elastic displacement along the length direction of the swing rod; the spring sheet is provided with a pivot block capable of elastic displacement along with the spring sheet;

[0020] The arm buckle is provided with a mounting shaft and a buckle shaft in a row, the mounting shaft is pivoted in the shaft hole of the pivot block so that the arm buckle can rotate; the outer wall of the hinge seat is provided with an undercut;

[0021] Wherein, when the UAV is in the unfolded state, the buckle shaft of the arm buckle and the undercut are buckled with each other to limit the mutual rotation of the articulated block and the articulated seat;

[0022] When the swing arm needs to be folded, the elastic displacement of the spring sheet drives the pivot block to drive the arm buckle to move in the direction of the buckle shaft and the undercut to disengage from each other, so that the buckle shaft and the undercut are disengaged from each other and then the buckle shaft is moved away from the undercut through the rotation of the arm buckle.

[0023] The utility model is a foldable drone, wherein a plurality of hinged seats distributed at different positions on the drone body are arranged on the drone body, and a hinge block is movably hinged in the clamp of each hinged seat, so that the hinge block can rotate in the clamp of the hinged seat, and after the swing rods are connected to each hinged block, each traction mechanism for driving the drone to rise and fall is installed on each swing rod. Therefore, the drone is in an unfolded state when working. In the unfolded state, each swing rod extends to the outside of the body, and each traction mechanism is arranged on one end of each swing rod away from the body, so that each traction mechanism can normally drive the body to rise and fall. On the contrary, the drone can be switched to a folded state after finishing working. In the folded state, the swing rod and the traction mechanism are deflected toward the direction of the body and folded on the body through the rotation of the hinge block in the hinged seat, so that each traction mechanism can be folded on the body with the swing rod, which is conducive to the storage of the drone, and effectively solves the technical problem that the drone is not easy to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural diagram of the expanded state of the utility model;

[0026] Figure 2 It is a structural diagram of the utility model in a folded state;

[0027] Figure 3 It is a partial structural diagram of the utility model;

[0028] Figure 4 It is a partial structural diagram of the utility model;

[0029] Figure 5 It is a partial structural diagram of the utility model;

[0030] Figure 6 It is a partial structural diagram of the utility model;

[0031] Figure 7 It is a partial structural diagram of the utility model;

[0032] Figure 8 It is a partial structural diagram of the utility model;

[0033] Fig. 9 It is a partial structural diagram of the utility model;

[0034] Fig.10 It is a partial structural diagram of the utility model;

[0035] Fig.11 It is a top view of the utility model;

[0036] Fig.12 It is a side view of the utility model (in the unfolded state);

[0037] Fig.13 yes Fig.12 A partial enlarged view of

[0038] Fig.14 yes Fig.12 A partial enlarged view of

[0039] Fig.15 It is a side view of the utility model (folded state);

[0040] Fig.16 It is a schematic diagram for explaining the transmission of lifting force of the utility model;

[0041] Fig.17 It is a schematic diagram for explaining the transmission of the descending force of the utility model.

[0042] Reference numerals:

[0043] 1. Airframe, 11. Square frame, 12. Connecting frame, 13. Transport box, 14. Obstacle avoidance radar;

[0044] 2. Swing rod;

[0045] 3. hinged seat, 31. clamping mouth, 32. pivot axis, 33. undercut;

[0046] 4. Elastic jacket;

[0047] 5. hinge block, 51. shaft sleeve, 52. spring piece, 53. hinge block;

[0048] 6. Arm buckle, 61. Mounting shaft, 62. Buckle shaft, 63. Push handle;

[0049] 7. Elastic support ring, 71. Transverse rod, 72. Front tilt rod, 73. Rear tilt rod,

[0050] 74. Curved rod;

[0051] 8. Rigid pipe;

[0052] 9. Traction mechanism, 91. Motor, 92. Propeller. DETAILED DESCRIPTION

[0053] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limitations on the utility model. In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the utility model.

[0054] like Figures 1 to 17 As shown, the foldable drone of this embodiment includes a body 1, on which four hinge seats 3 are arranged, and the four hinge seats 3 are distributed at different positions on the body 1. A hinge block 5 is movably hinged in a clamping opening 31 of each hinge seat 3, and each hinge block 5 is respectively connected to a swing rod 2, so that the four swing rods 2 can rotate and swing on the body 1. When in use, Figure 1 As shown, when the UAV is in the unfolded state, each swing rod 2 extends to the outside of the body 1, and each swing rod 2 is respectively installed with a traction mechanism 9 for driving the UAV to rise and fall at one end away from the body 1. Specifically, the traction mechanism 9 includes a motor 91 and a propeller 92, and the rotation center of the propeller 92 is connected to the power output shaft of the motor 91. Figure 2 As shown, when the drone needs to be switched to the folded state, the swing arm 2 and the traction mechanism 9 are deflected toward the body 1 and folded on the body 1 by the rotation of the hinge block 5 in the hinge seat 3. In addition, optionally, a plurality of elastic jackets 4 are fixed to the side wall of the body 1, and each swing arm 2 is clamped in the clamping opening of each elastic jacket 4 when folded on the body 1, so that each swing arm 2 in the folded state can be fixed on the body 1.

[0055] It can be understood that in this embodiment, a plurality of articulated seats 3 distributed at different positions on the body 1 are arranged on the body 1 of the drone, and an articulated block 5 is also movably articulated in the clamping opening 31 of each articulated seat 3, so that the articulated block 5 can rotate in the clamping opening 31 of the articulated seat 3, and after the swing rod 2 is connected to each articulated block 5, each traction mechanism 9 for driving the drone to rise and fall is installed on each swing rod 2. Therefore, the drone is in an unfolded state when working. In the unfolded state, each swing rod 2 is extended to the outside of the body 1, and each traction mechanism 9 is arranged on one end of each swing rod 2 away from the body 1, so that each traction mechanism 9 can normally drive the body 1 to rise and fall. On the contrary, the drone can be switched to a folded state after finishing working. In the folded state, the swing rod 2 and the traction mechanism 9 are deflected toward the direction of the body 1 and folded on the body 1 through the rotation of the articulated block 5 in the articulated seat 3, so that each traction mechanism 9 can be folded on the body 1 with the swing rod 2, which is conducive to the storage of the drone, and effectively solves the technical problem that the drone is not easy to store.

[0056] In one embodiment, the body 1 includes a square frame 11 on which the outer shell is mounted, and each articulated seat 3 is integrally formed with a connecting frame 12, and each connecting frame 12 is fixedly connected to the four diagonal corners of the square frame 11, so that each articulated seat 3 can be easily installed on the body 1. In addition, a transport box 13 is carried in the square frame 11 to facilitate the drone to carry goods and use it more conveniently. In order to facilitate the drone to avoid obstacles during travel, an obstacle avoidance radar 14 is installed on the top of the body 1.

[0057] Specifically, there are four articulated seats 3, which are symmetrically distributed at the front and rear sides of the machine body 1, so that the four articulated seats 3 are distributed at four diagonal positions of the machine body 1, and a pivot shaft 32 is installed in the clamping opening 31 of each articulated seat 3. At the same time, the inner end of each swing rod 2 (i.e., the end away from the traction mechanism 9) is respectively fixedly installed with the above-mentioned articulated block 5, that is, the inner end of the swing rod 2 is installed with the articulated block 5, and the outer end of the swing rod 2 is installed with the above-mentioned traction mechanism 9, each articulated block 5 is respectively sleeved in the clamping opening 31 of each articulated seat 3, and the articulated block 5 is pivotally connected to the pivot shaft 32 in the clamping opening 31, so that the articulated block 5 can rotate around the pivot shaft 32 in the articulated seat 3 with the swing rod 2 and the traction mechanism 9. When the traction mechanism 9 on the body 1 needs to be unfolded, the hinge block 5 rotates around the pivot axis 32 in the hinge seat 3, and the free end of the swing rod 2 can be swung away from the body 1, so that the traction mechanism 9 originally folded on the body 1 with the swing rod 2 can be extended to the outside of the body 1, and then it can be operated normally. On the contrary, when the traction mechanism 9 on the body 1 needs to be folded, the hinge block 5 rotates around the pivot axis 32 in the hinge seat 3, and the free end of the swing rod 2 is swung and reset to the body 1. At this time, the traction mechanism 9 can be folded on the body 1 again with the free end of the swing rod 2, so that the drone can be smoothly switched to the folded state, which helps to solve the storage problem of the drone in the non-working state.

[0058] In one embodiment, the clamping opening 31 of the articulated seat 3 distributed on the front side of the body 1 faces the rear side of the body 1, while the clamping opening 31 of the articulated seat 3 distributed on the rear side of the body 1 faces the front side of the body 1. Through the above structure, when the drone is switched to the folded state, the swing arm 2 located on the front side of the body 1 can swing backward and fold onto the body 1 together with the traction mechanism 9, while the swing arm 2 located on the rear side of the body 1 can swing forward and fold onto the body 1 together with the traction mechanism 9. Therefore, the swing arms 2 on the front and rear sides are respectively moved closer to the middle part of the body 1 when folded, so that the overall structure of the drone in the folded state is more compact.

[0059] In one embodiment, in combination Figures 13 to 17 As shown in other related drawings, the clamps 31 of the hinge seats 3 distributed on the front and rear sides of the body 1 are tilted at a certain angle in opposite directions up and down. Specifically, in the present embodiment, the clamps 31 of the hinge seats 3 located on the front side of the body 1 are tilted downward at a certain angle, while the clamps 31 of the hinge seats 3 located on the rear side of the body 1 are tilted upward at a certain angle, so that the swing arms 2 connected to the front and rear sides of the body 1 are tilted in opposite directions up and down and folded on the body 1 when folded. This structure can effectively prevent the front and rear swing arms 2 and the traction mechanism 9 from interfering with each other when folding, that is, it ensures that the swing arms 2 and the traction mechanism 9 at different positions touch each other during the process of folding on the body 1.

[0060] In one embodiment, further, in combination Figures 13 to 17 As shown in other related figures, the pivot shafts 32 in the four hinge seats 3 on the body 1 are tilted at a certain angle along with the clamping opening 31 of the hinge seat 3, that is, the clamping opening 31 of the hinge seat 3 tilts together with the pivot shaft 32. On the other hand, a shaft sleeve 51 is fixed in each hinge block 5, and the shaft sleeve 51 is sleeved on the pivot shaft 32 that has tilted along with the hinge seat 3. Fig.16 and Fig.17 As shown, when the UAV is ascending, the traction mechanism 9 drives the upward force F1 of the body 1 through the rocker arm 2 and the hinge block 5 to act on the outer wall surface of the pivot shaft 32 through the inner wall surface of the shaft sleeve 51. Similarly, when the UAV is descending, the traction mechanism 9 drives the downward force F2 of the body 1 through the rocker arm 2 and the hinge block 5 to act on the outer wall surface of the pivot shaft 32 through the inner wall surface of the shaft sleeve 51. It can be understood that in the above structure, the hinge block 5 is fitted in the clamp 31 of the hinge seat 3 and tilts along with the tilt direction of the hinge seat 3, so that the sleeve 51 in the hinge block 5 also follows the tilt and cooperates with the pivot shaft 32 in the tilted state. Therefore, when the traction mechanism 9 drives the body 1 up and down, the rising force F1 or the falling force F2 of the traction mechanism 9, in addition to acting vertically on the hinge seat 3 through the hinge block 5, can also act vertically on the outer wall surface of the pivot shaft 32 through the inner wall surface of the sleeve 51, so as to increase the action position of the rising force F1 or the falling force F2 in space, which is helpful to enhance the stability of the traction mechanism 9 in the process of towing the drone body to lift and lower, and ensure the stable lifting and lowering of the drone.

[0061] In one embodiment, the outer wall of the hinge block 5 is provided with a spring sheet 52, which is suitable for elastic displacement along the length direction of the swing rod 2, and a pivot block 53 is integrally formed on the spring sheet 52, and the pivot block 53 can be elastically displaced with the spring sheet 52. In addition, an arm buckle 6 is also provided between the hinge block 5 and the hinge seat 3, and a mounting shaft 61 and a buckle shaft 62 are arranged on the arm buckle 6, and the mounting shaft 61 is pivoted in the shaft hole of the pivot block 53 so that the arm buckle 6 can rotate. In addition, the outer wall of the hinge seat 3 is integrally formed with an undercut 33. When the drone is in the unfolded state, the buckle shaft 62 of the arm buckle 6 and the undercut 33 of the hinge seat 3 are mutually buckled, thereby limiting the hinge block 5 and the hinge seat 3 from rotating each other, so the swing rod 2 cannot rotate at this time. Therefore, when the drone is in the unfolded state, the swing rod 2 can be kept in the unfolded state to ensure that the traction mechanism 9 can operate normally. When the swing arm 2 needs to be folded, the spring sheet 52 is manually pushed to elastically displace, driving the pivot block 53 to drive the arm buckle 6 to move in the direction of the buckle shaft 62 and the undercut 33 being disengaged from each other, that is, by pushing the pivot block 53 on the spring sheet 52 to drive the arm buckle 6 to move in the direction of the body 1, so that the buckle shaft 62 on the arm buckle 6 and the undercut 33 on the hinge seat 3 are disengaged from each other, and then the arm buckle 6 is rotated outward to cause the buckle shaft 62 to leave the undercut 33, at which time the arm buckle 6 no longer restricts the hinge block 5 and the hinge seat 3 from rotating with each other, and then the swing arm 2 can be folded, allowing the drone to switch to the folded state. Therefore, the connection between the hinge block 5 and the hinge seat 3 can be locked or unlocked by the arm buckle 6, which assists in realizing the quick switching of the drone between the unfolded state and the folded state.

[0062] Optionally, a push handle 63 is further provided on the arm buckle 6, which is located at one end of the arm buckle 6 away from the buckle shaft 62, and is an arc-shaped piece. The end of the push handle 63 is close to the side wall of the rocker arm 2. Therefore, the arm buckle 6 can be pushed by the push handle 63 to drive the pivot block 53 to elastically displace, thereby conveniently pushing the arm buckle 6 to move and controlling the unlocking between the hinge block 5 and the hinge seat 3.

[0063] In one embodiment, two elastic support rings 7 are connected to the bottom of the body 1. The elastic support rings 7 can be made of elastic materials of the prior art. The two elastic support rings 7 are symmetrically distributed at the bottom of the body 1, and each elastic support ring 7 is also integrally formed with a transverse rod 71, a front tilt rod 72, and a rear tilt rod 73. The transverse rod 71 is located at the bottom of the elastic support ring 7 and is suitable for contacting the ground when the drone lands, while the front tilt rod 72 and the rear tilt rod 73 are tilted forward and backward respectively. In addition, the front tilt rod 72 and the rear tilt rod 73 are respectively connected to the bottom of the body 1 at the front and rear sides of the body 1. In addition, the elastic support ring 7 is also integrally formed with two arc rods 74, the two ends of one arc rod 74 are connected between the front end of the transverse rod 71 and the lower end of the front tilt rod 72, and the two ends of the other arc rod 74 are connected between the rear end of the transverse rod 71 and the lower end of the rear tilt rod 73. It can be understood that the transversely arranged transverse rod 71 is suitable for contacting the ground when the drone lands, ensuring the overall stability of the drone after landing. At the moment when the drone quickly lands on the ground, the front tilt rod 72, the rear tilt rod 73 and the two arc rods 74 can be better compressed downward to produce elastic deformation, so as to elastically buffer the vertical impact force generated when the transverse rod 71 contacts the ground downward, avoid the drone from being damaged by the impact force of the ground when it lands quickly, and protect the drone from being easily damaged when landing.

[0064] Preferably, a laterally arranged rigid tube 8 is respectively connected between the two left-right symmetrical front tilting rods 72 and between the two left-right symmetrical rear tilting rods 73. The rigid tube 8 is a rigid material of the prior art. It can be understood that the rigid tube 8 is connected between the two front tilting rods 72 and between the two rear tilting rods 73, so it will not affect the normal elastic compression deformation of the front tilting rod 72, the rear tilting rod 73 and the two arc-shaped rods 74 when the elastic support ring 7 is impacted by the ground, and will not buffer the ground impact force for the drone. If the ground impact force on the elastic support ring 7 is too large, causing the front tilting rod 72, the rear tilting rod 73 and the two arc-shaped rods 74 to excessively compress and deform downward and accompanied by the risk of the drone hitting the ground, the two rigid tubes 8 on the front and rear sides can block between the body 1 and the ground, to a certain extent, avoid the drone body 1 from directly hitting the ground, protect the drone from being damaged by the impact of the ground as much as possible, and protect the safety of the drone when landing.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A foldable drone, comprising a body (1), characterized in that: The machine body (1) is provided with a plurality of hinge seats (3) distributed at different positions on the machine body (1), a hinge block (5) is movably hinged in the clamping opening (31) of each hinge seat (3), and each hinge block (5) is respectively connected to a swing rod (2); When the UAV is in the unfolded state, each of the swing arms (2) extends toward the outside of the body (1), and each of the swing arms (2) is provided with a traction mechanism (9) for driving the UAV to ascend or descend at one end away from the body (1); When the drone needs to be switched to a folded state, the hinge block (5) is rotated within the hinge seat (3) to allow the swing arm (2) and the traction mechanism (9) to be deflected toward the body (1) and folded onto the body (1).

2. The foldable drone according to claim 1, characterized in that: The traction mechanism (9) comprises a motor (91) and a propeller (92), wherein the rotation center of the propeller (92) is connected to the power output shaft of the motor (91), and the motor (91) is fixedly arranged on an end of the swing arm (2) away from the machine body (1).

3. The foldable drone according to claim 1, characterized in that: The machine body (1) comprises a square frame (11), and each of the hinge seats (3) is provided with a connecting frame (12), and each of the connecting frames (12) is fixedly connected to four diagonal corners of the square frame (11).

4. The foldable drone according to claim 3, characterized in that: A transport box (13) is mounted inside the square frame (11).

5. The foldable drone according to claim 1, characterized in that: An obstacle avoidance radar (14) is arranged on the top of the machine body (1).

6. The foldable drone according to claim 1, characterized in that: A pivot shaft (32) is arranged in the clamping opening (31) of the hinge seat (3); the hinge blocks (5) are respectively sleeved in the clamping openings (31) of the hinge seats (3) and are pivotally connected to the pivot shaft (32); When the traction mechanism (9) on the machine body (1) needs to be deployed, the hinge block (5) rotates around the pivot axis (32) in the hinge seat (3), causing the free end of the swing rod (2) to swing away from the machine body (1); When the traction mechanism (9) on the machine body (1) needs to be folded, the hinge block (5) rotates around the pivot axis (32) in the hinge seat (3), causing the free end of the swing rod (2) to swing and return to the machine body (1).

7. The foldable drone according to claim 6, characterized in that: The hinge seat (3) distributed on the front side of the machine body (1) has its clamping opening (31) facing the rear side of the machine body (1); and the hinge seat (3) distributed on the rear side of the machine body (1) has its clamping opening (31) facing the front side of the machine body (1).

8. The foldable drone according to claim 7, characterized in that: The clamping openings (31) of the hinge seats (3) distributed on the front and rear sides of the machine body (1) are tilted at a certain angle in opposite directions upward and downward, so that the swing arms (2) arranged on the front and rear sides of the machine body (1) can be tilted in opposite directions upward and downward when folded and folded on the machine body (1).

9. The foldable drone according to claim 1, characterized in that: The side wall of the machine body (1) is provided with a plurality of elastic jackets (4), and each of the swing arms (2) is clamped in the clamping opening of each elastic jacket (4) when folded on the machine body (1).

10. The foldable drone according to claim 6, characterized in that: An arm buckle (6) is provided between the articulated block (5) and the articulated seat (3); The outer wall of the hinge block (5) is provided with a spring sheet (52) suitable for elastic displacement along the length direction of the swing rod (2); the spring sheet (52) is provided with a pivot block (53) capable of elastic displacement along with the spring sheet (52); The arm buckle (6) is provided with a mounting shaft (61) and a buckle shaft (62) in an arranged manner, and the mounting shaft (61) is pivotally connected to the shaft hole of the pivot block (53) so that the arm buckle (6) can rotate; the outer wall of the hinge seat (3) is provided with an undercut (33); When the drone is in the unfolded state, the buckle shaft (62) of the arm buckle (6) and the undercut (33) are buckled with each other to limit the mutual rotation of the hinge block (5) and the hinge seat (3); When the swing arm (2) needs to be folded, the elastic displacement of the spring sheet (52) drives the pivot block (53) to drive the arm buckle (6) to move in the direction of mutual disengagement between the buckle shaft (62) and the undercut (33), so that the buckle shaft (62) and the undercut (33) are disengaged from each other and then the buckle shaft (62) is moved away from the undercut (33) by the rotation of the arm buckle (6).

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