Propeller folding device for drone hangar and drone hangar with same

Abstract

This invention relates to the field of unmanned aerial vehicle (UAV) technology, and discloses a propeller retraction device for UAV hangars and a UAV hangar having the same. The UAV hangar includes a parking apron and a storage compartment, which includes a left half and a right half. The propeller retraction device includes a slide rail mechanism and a propeller retraction plate. The slide rail mechanism is installed on the left and right half of the hangar, respectively, and is located on one side of the storage compartment inside the UAV hangar. The propeller retraction plate is installed in the storage compartment via the slide rail mechanism. The propeller retraction plate includes a first propeller retraction plate and a second propeller retraction plate. The first propeller retraction plate is installed in the left half of the hangar, and the second propeller retraction plate is installed in the right half of the hangar. In the second stage of the closing process of the storage compartment, the propeller retraction plate moves along the slide rail relative to the storage compartment in the height direction of the UAV hangar, so that the height of the propeller retraction plate corresponds to the height of the propeller. This invention solves the problem that existing UAV propeller retraction devices cannot meet the propeller retraction requirements of UAV models with different propeller heights.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically to a propeller retraction device for UAV hangars and a UAV hangar having the same. Background Technology

[0002] With the development of drone technology, drones are being introduced into more and more fields, and their applications are widespread. However, the propeller position of some drones after landing is relatively random. Furthermore, because the area occupied by the propellers is much larger than that of the drone's fuselage, the propellers take up a significant amount of space. This is especially problematic when using drone hangars for automated storage, where the space required necessitates a large hangar volume and the ability to fold the drone propellers. Existing drone propeller folding devices are insufficient to meet the folding requirements of drone models with varying propeller heights, exhibiting a lack of compatibility. Summary of the Invention

[0003] This invention provides a propeller folding device for a drone hangar and a drone hangar having the same, to solve the problem that existing drone propeller folding devices cannot meet the propeller folding requirements of drone models with different propeller heights.

[0004] In a first aspect, the present invention provides a propeller retraction device for a drone hangar, the drone hangar including a landing pad and a storage compartment covering the landing pad, the storage compartment including a left half compartment and a right half compartment, the left half compartment and the right half compartment being respectively disposed on opposite sides of the drone hangar; The closing process of the storage compartment includes a first stage and a second stage. The drone hangar is set on the base plane. In the first stage, the left half and the right half move away from the base plane and move closer to each other, so that the left half and the right half fit together. In the second stage, the left half and the right half move towards the base plane until the storage compartment and the hangar body are closed. The blade retraction device is installed in the storage compartment, and the blade retraction device includes: The sliding rail mechanism is installed on the left half-cabin and the right half-cabin respectively, and the sliding rail mechanism is installed on the side of the storage compartment located inside the drone hangar; A blade folding plate is mounted on the storage compartment via a slide rail mechanism. The blade folding plate includes a first blade folding plate and a second blade folding plate. The first blade folding plate is mounted on the left half of the compartment, and the second blade folding plate is mounted on the right half of the compartment. In the second stage of the closing process of the storage compartment, the blade folding plate moves along the slide rail relative to the storage compartment in the height direction of the UAV hangar, so that the height of the blade folding plate corresponds to the height of the blade.

[0005] Beneficial effects: By setting up a sliding rail structure, the propeller folding plate is installed in the storage compartment via the sliding rail structure. The propeller folding plate can move relative to the storage compartment along the height of the drone hangar along the sliding rail, so that the height of the propeller folding plate corresponds to the height of the propeller. This prevents the propeller folding plate from being unable to fold the propeller when it is fixed in the storage compartment if the fixed position is too high, which would not meet the propeller folding requirements of drones with low propeller height. On the other hand, if the fixed position is too low, the propeller folding plate may interfere with the movement of the landing pad when the storage compartment descends during the closing process, causing the storage compartment to fail to close properly. By configuring the propeller retraction plate to move relative to the storage compartment along the slide rail in the height direction of the drone hangar, the propeller retraction plate can be controlled to maintain a low height in the early stage of the storage compartment closing, meeting the propeller retraction requirements of drones with low propeller height. It is compatible with the propeller retraction of drones with different propeller heights and has high compatibility. During the descent of the storage compartment, the propeller retraction plate can slide along the slide rail mechanism to avoid affecting the normal closing of the storage compartment.

[0006] In the first stage of the closure process of the storage compartment, the blade retraction plate is connected to the bottom of the slide rail mechanism and moves with the storage compartment to retract the drone blades. In the second stage, during the descent of the storage compartment, when the storage compartment moves to the point where the bottom of the blade retraction plate is at the same height as the landing pad, the blade retraction plate moves along the slide rail mechanism relative to the storage compartment in a direction away from the base plane, stops descending with the storage compartment, and allows the storage compartment to close normally.

[0007] In one alternative implementation, during the second stage, the blade folding plate is located within the vertical projection range of the landing pad, and the blade folding plate abuts against the landing pad, causing the blade folding plate to move relative to the storage compartment in a direction away from the base plane.

[0008] Beneficial effects: The blade retractor plate is located within the vertical projection range of the helipad. When the storage compartment is closed in the second stage, the blade retractor plate moves until its bottom is at the same height as the helipad, causing it to abut against the helipad. It then moves along the slide rail mechanism relative to the storage compartment in a direction away from the base plane, without affecting the normal closing of the storage compartment. The movement of the blade retractor plate along the slide rail mechanism is achieved through the helipad, eliminating the need for other control structures to move the blade retractor plate along the slide rail mechanism. The structure is simple and effective.

[0009] In one alternative embodiment, the blade retracting plate is provided with a fixing part, and the slide rail mechanism includes an elastic element, which is disposed on the side of the fixing part away from the base plane.

[0010] Beneficial effects: An elastic element is installed in the slide rail mechanism, and the blade retractor plate is fixed to the slide rail mechanism through a fixing part, so that the elastic element is located on the side of the fixing part away from the base plane. Before the blade retractor plate comes into contact with the apron, the blade retractor plate is connected to the bottom of the slide rail mechanism under the action of the elastic element. After the blade retractor plate comes into contact with the apron, as the door connecting the slide rail mechanism continues to descend, it compresses the elastic element, causing the blade retractor plate to move along the slide rail mechanism relative to the storage compartment in a direction away from the base plane. The structure is simple and can effectively control the movement of the blade retractor plate, avoiding interference between the movement of the blade retractor plate and the apron.

[0011] In one optional embodiment, the slide rail mechanism includes a linear guide rail and a linear bearing sleeved on the linear guide rail, the fixing part is fixed to the linear bearing, and the elastic element is sleeved on the linear guide rail and located between the linear bearing and the end of the linear guide rail away from the base plane.

[0012] Beneficial effects: By fixing the fixed part to the linear bearing, and cooperating with the linear guide rail and the linear bearing, the blade retractor plate slides along the slide rail mechanism, ensuring stable movement. The elastic element is sleeved on the linear guide rail to prevent bending during the compression and recovery process of the elastic element, which would affect the cooperation between the elastic element and the linear bearing and ensure the normal operation of the slide rail mechanism.

[0013] In one optional embodiment, the left half-cabin and the right half-cabin are respectively fixed with a plurality of the slide rail mechanisms, and the plurality of slide rail mechanisms are arranged at intervals.

[0014] Beneficial effects: Multiple sliding rail mechanisms are set at intervals in the left and right halves of the cabin. These sliding rail mechanisms are connected to the blade retractor plate, making the force on the blade retractor plate more uniform and the movement process more stable when it moves along the sliding rail mechanism.

[0015] In one optional embodiment, the inner side of the storage compartment is provided with reinforcing ribs, and the slide rail mechanism is fixed to the reinforcing ribs.

[0016] Beneficial effects: Adding reinforcing ribs to the inside of the storage compartment makes the structure of the storage compartment more stable, and fixing the sliding rail mechanism to the reinforcing ribs avoids direct fixing to the side wall of the storage compartment, which would cause the side wall of the storage compartment to deform or bend. By adding reinforcing ribs, the load-bearing requirements can be met without thickening the side wall of the storage compartment.

[0017] In one optional embodiment, the blade folding plate includes a connecting portion, which is correspondingly disposed at the connection points of the adjacent side walls of the storage compartment. The side wall surface of the connecting portion near the blade is an arc surface, the radius direction of the arc surface is consistent with the radius direction of the blade, and the radius of the arc surface is greater than the radius of the blade. The distance between the connecting portion and the blade rotation center is less than the blade radius.

[0018] Beneficial effects: The connecting part of the blade retractor plate is set to correspond with the connecting part of the adjacent side walls of the storage compartment, and the side wall of the connecting part near the blade is set as an arc surface, so that the radius of the arc surface is larger than the radius of the blade. During the blade retracting process, the blade can slide smoothly along the connecting part, making the blade retracting process smoother and preventing the blade from getting stuck at the connecting part during the blade retracting process.

[0019] In one optional embodiment, the first blade folding plate includes a first protrusion that protrudes beyond the mating edge of the left and right half-cabins, and the second blade folding plate includes a second protrusion that protrudes beyond the mating edge of the right and left half-cabins. The first protrusion and the second protrusion are staggered in a direction perpendicular to the plane of motion of the storage compartment.

[0020] Beneficial effects: The first and second protrusions are respectively provided on the first and second blade folding plates to prevent the blade tip from breaking off when inserted into the gap between the storage compartment and the blade folding plate, thus preventing blade damage; the first and second protrusions are staggered in the direction perpendicular to the plane of movement of the storage compartment, so that when the left and right halves of the compartment are closed, the first and second protrusions overlap, avoiding interference between the first and second protrusions and affecting the closing of the storage compartment.

[0021] In one optional embodiment, the left half-cabin includes a first sidewall and a second sidewall, and the right half-cabin includes a third sidewall and a fourth sidewall. When the storage compartment is in the closed state, the first sidewall is aligned with the third sidewall, and the second sidewall is aligned with the fourth sidewall. The first propeller folding plate is a split structure, comprising a first folding plate and a second folding plate. The left half-cabin includes a fifth sidewall disposed between the first sidewall and the second sidewall. The two ends of the first folding plate are respectively fixed to the first sidewall and the fifth sidewall, and the two ends of the second folding plate are respectively fixed to the second sidewall and the fifth sidewall. The first folding plate and the second folding plate are spaced apart. And / or, the second blade folding plate is a split structure, the second blade folding plate includes a third folding plate and a fourth folding plate, the right half-cabin includes a sixth side wall disposed between the third side wall and the fourth side wall, the two ends of the third folding plate are respectively fixed to the third side wall and the sixth side wall, the two ends of the fourth folding plate are respectively fixed to the fourth side wall and the sixth side wall, and the third folding plate and the fourth folding plate are spaced apart.

[0022] Beneficial effects: The first and second blade folding plates are separate structures. The first blade folding plate includes a first folding plate and a second folding plate, and the second blade folding plate includes a third folding plate and a fourth folding plate. This allows for a smaller weight and volume of each blade folding plate, facilitating its movement. Furthermore, the first and second folding plates are spaced apart, as are the third and fourth folding plates. This reduces the overall weight and range of the blade folding plates without affecting their normal blade folding function, making the overall structure lighter and reducing the load on the slide rail mechanism and storage compartment.

[0023] Secondly, the present invention also provides a drone hangar, the drone hangar including a propeller retraction device.

[0024] Beneficial effects: Since the drone hangar includes a propeller retraction device, it has the same effect as the propeller retraction device, so it will not be elaborated here. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a top view of a drone hangar according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shown is a structural schematic of the drone hangar. Figure 3 for Figure 1 The diagram shows the structural schematic of the right half-cabin assembly in the drone hangar. Figure 4 for Figure 3 Left view of the right half-cabin assembly shown; Figure 5 for Figure 3 Rear view of the right half-cabin assembly shown; Figure 6 for Figure 3 A bottom view of the right half-cabin assembly shown; Figure 7 for Figure 1 The diagram shows the structural layout of the left half of the drone hangar assembly. Figure 8 for Figure 7 A bottom view of the right half-cabin assembly shown; Figure 9 for Figure 1The diagram shows the structure of the propeller retraction plate in the drone hangar. Figure 10 for Figure 1 The diagram shows a structural schematic of the propeller retraction plate in the drone hangar from another angle. Figure 11 for Figure 1 The front view of the slide rail mechanism in the drone hangar shown; Figure 12 for Figure 11 The diagram shown is a structural schematic of the slide rail mechanism. Figure 13 This is a partial structural schematic diagram of a propeller retraction device for a drone hangar according to an embodiment of the present invention. Figure 14 for Figure 13 A magnified view of part A in the image; Figure 15 for Figure 1 The diagram shows the propeller angle regions a, b, and c in the drone hangar.

[0027] Explanation of reference numerals in the attached figures: 1. Storage compartment; 11. Left half compartment; 111. First side wall; 112. Second side wall; 113. Fifth side wall; 12. Right half compartment; 121. Third side wall; 122. Fourth side wall; 123. Sixth side wall; 13. Reinforcing rib; 2. Slide rail mechanism; 21. Elastic element; 22. Linear guide rail; 23. Linear bearing; 231. Linear bearing flange; 24. Linear guide rail support; 25. Base plate; 251. Mounting hole; 3. Blade retractor plate; 31. First blade retractor plate; 311. First protrusion; 312. First retractor plate; 313. Second retractor plate; 32. Second blade retractor plate; 321. Second protrusion; 322. Third retractor plate; 323. Fourth retractor plate; 33. Fixing part; 34. Connecting part; 4. Propeller blades; 41. Propeller blade rotation center; 5. Helipad; 51. UAV centering pole; 6. Hanger main body. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is combined Figures 1 to 15 The following describes embodiments of the present invention.

[0030] like Figures 1 to 15 According to an embodiment of the present invention, in one aspect, a propeller retraction device for a drone hangar is provided. The drone hangar includes a landing pad 5 and a storage compartment 1 covering the landing pad 5. The storage compartment 1 includes a left half-compartment 11 and a right half-compartment 12, which are respectively located on opposite sides of the drone hangar. The closing process of the storage compartment 1 includes a first stage and a second stage. The drone hangar is located on a base plane. In the first stage, the left half-compartment 11 and the right half-compartment 12 move away from the base plane and move closer to each other, so that the left half-compartment 11 and the right half-compartment 12 are in contact. In the second stage, the left half-compartment 11 and the right half-compartment 12 move towards the base plane until the storage compartment 1 closes with the hangar body 6. The propeller retraction device is installed in the storage compartment 1. The propeller retraction device includes a slide rail mechanism 2 and a propeller retraction plate 3. The slide rail mechanism 2 is installed on the left half-compartment 11 and the right half-compartment 12 respectively. The slide rail mechanism 2 is installed on one side of the storage compartment 1 located inside the drone hangar. The blade retractor 3 is installed on the storage compartment 1 via the slide rail mechanism 2. The blade retractor 3 includes a first blade retractor 31 and a second blade retractor 32. The first blade retractor 31 is installed on the left half compartment 11, and the second blade retractor 32 is installed on the right half compartment 12. In the second stage of the closing process of the storage compartment 1, the blade retractor 3 moves along the slide rail relative to the storage compartment 1 in the height direction of the UAV hangar, so that the height of the blade retractor 3 corresponds to the height of the blade 4.

[0031] In this embodiment, by setting a slide rail structure, the blade retractor plate 3 is installed on the storage compartment 1 via the slide rail structure. The blade retractor plate 3 can move relative to the storage compartment 1 along the slide rail in the height direction of the UAV hangar, so that the height of the blade retractor plate 3 can correspond to the height of the blade 4. This prevents the blade retractor plate 3 from being fixed in the storage compartment 1. If the fixed position of the blade retractor plate 3 is too high, it will be unable to retract the blade 4 when the height of the UAV blade 4 is too low, which means that the blade retractor 4 cannot be retracted, thus failing to meet the blade retractor 4 retraction requirements of UAVs with low blade 4 height. If the fixed position of the blade retractor plate 3 is too low, during the closing process of the storage compartment 1, the blade retractor plate 3 is prone to interference with the movement of the landing pad 5 when the storage compartment 1 descends, causing the storage compartment 1 to fail to close properly. By setting the propeller retraction plate 3 to move relative to the storage compartment 1 along the slide rail in the height direction of the drone hangar, the propeller retraction plate 3 can be controlled to maintain a low height in the early stage of closing the storage compartment 1, which meets the propeller 4 retraction requirements of drones with low propeller 4 height. It is compatible with the propeller 4 retraction of drones with different propeller 4 heights and has high compatibility. During the descent of the storage compartment 1, the propeller retraction plate 3 can slide along the slide rail mechanism 2 to avoid affecting the normal closing of the storage compartment 1.

[0032] In the first stage of the closing process of the storage compartment 1, the blade retraction plate 3 is connected to the bottom of the slide rail mechanism 2 and moves with the storage compartment 1 to retract the drone blades 4. In the second stage, during the descent of the storage compartment 1, when the storage compartment 1 moves to the point where the bottom of the blade retraction plate 3 is at the same height as the landing pad 5, the blade retraction plate 3 moves along the slide rail mechanism 2 in a direction away from the base plane relative to the storage compartment 1, and stops descending with the storage compartment 1, so that the storage compartment 1 can close normally.

[0033] Specifically, the slide rail mechanism 2 extends along the height direction of the drone hangar.

[0034] Specifically, a gap is provided between the blade retractor plate 3 and the storage compartment 1 to avoid the door drive linkage. The blade retractor plate 3 includes a retractable surface, a retractable plate flange reinforcing rib, a mounting lug plate, and a rivet nut. The retractable surface is the side of the blade retractor plate 3 away from the side wall of the storage compartment 1, and the surface of the retractable surface is smooth.

[0035] Specifically, after the drone lands on the helipad 5 of the drone hangar, the drone centering lever 51 on helipad 5 pushes the drone to the center of helipad 5, and then the left half-cabin 11 and the right half-cabin 12 begin to close inward. When the drone is in angle region a, during the closing process of the storage compartment 1, the propeller retraction plate 3 pushes the propeller 4 to the right to prevent the propeller 4 from getting stuck inside the storage compartment 1; when the drone propeller 4 is in angle regions b and c, during the closing process of the storage compartment 1, the propeller 4 rotates clockwise under the action of the propeller retraction plate 3, and during this process, the propeller 4 slides on the surface of the propeller retraction plate 3 until the closing is completed.

[0036] In one embodiment, during the second stage, the blade retractor 3 is located within the vertical projection range of the apron 5, and the blade retractor 3 abuts against the apron 5, causing the blade retractor 3 to move relative to the storage compartment 1 in a direction away from the base plane.

[0037] In this embodiment, the blade retractor 3 is located within the vertical projection range of the landing pad 5. When the storage compartment 1 is closed in the second stage, the blade retractor 3 moves until its bottom is at the same height as the landing pad 5, causing the blade retractor 3 to abut against the landing pad 5. It then moves along the slide rail mechanism 2 relative to the storage compartment 1 in a direction away from the base plane, without affecting the normal closing of the storage compartment 1. The movement of the blade retractor 3 along the slide rail mechanism 2 is achieved through the landing pad 5, eliminating the need for other control structures to make the blade retractor 3 move along the slide rail mechanism 2. The structure is simple and effective.

[0038] like Figures 13 to 14 As shown, in one embodiment, the blade retracting plate 3 is provided with a fixing part 33, and the slide rail mechanism 2 includes an elastic element 21, which is disposed on the side of the fixing part 33 away from the base plane.

[0039] In this embodiment, an elastic element 21 is provided in the slide rail mechanism 2, and the blade retracting plate 3 is fixed to the slide rail mechanism 2 by the fixing part 33, so that the elastic element 21 is located on the side of the fixing part 33 away from the base plane. Before the blade retracting plate 3 abuts against the landing pad 5, the blade retracting plate 3 is connected to the bottom of the slide rail mechanism 2 under the action of the elastic element 21. After the blade retracting plate 3 abuts against the landing pad 5, as the door connecting slide rail mechanism 2 continues to descend, it compresses the elastic element 21, causing the blade retracting plate 3 to move along the slide rail mechanism 2 relative to the storage compartment 1 in a direction away from the base plane. The structure is simple and can effectively control the movement of the blade retracting plate 3, avoiding interference between the movement of the blade retracting plate 3 and the landing pad 5.

[0040] Specifically, the fixing part 33 of the blade retractor plate 3 is a mounting ear plate, which is equipped with a rivet nut and is fixed to the slide rail mechanism 2 by screws.

[0041] As an alternative implementation, when the elastic element 21 is configured as a tension spring, the elastic element 21 is disposed on the side of the fixing part 33 near the base plane.

[0042] like Figures 11 to 12 As shown, in one embodiment, the slide rail mechanism 2 includes a linear guide rail 22 and a linear bearing 23 sleeved on the linear guide rail 22. The fixing part 33 is fixed to the linear bearing 23, and the elastic member 21 is sleeved on the linear guide rail 22 and located between the linear bearing 23 and the end of the linear guide rail 22 away from the base plane.

[0043] In this embodiment, the fixing part 33 is fixed to the linear bearing 23. The linear guide rail 22 cooperates with the linear bearing 23 to make the blade retracting plate 3 slide along the slide rail mechanism 2. The movement process is stable. The elastic element 21 is sleeved on the linear guide rail 22 to prevent bending during the compression and recovery of the elastic element 21, which would affect the cooperation between the elastic element 21 and the linear bearing 23 and ensure the normal operation of the slide rail mechanism 2.

[0044] Specifically, the slide rail mechanism 2 includes: an elastic element 21, a linear guide rail 22, a linear bearing 23, a linear guide rail support 24, and a base plate 25. The base plate 25 is provided with mounting holes 251 for mounting the slide rail mechanism 2 on the reinforcing rib 13. The base plate 25 is provided with guide rail support mounting holes, and rivet nuts are provided in the guide rail support mounting holes. The linear guide rail 22 is fixed to the base plate 25 by two linear guide rail supports 24 and screws. Two linear bearings 23, including linear bearing flanges 231, are provided in the middle of the guide rail. The mounting ear plate of the blade retractor plate 3 is fixed to the linear bearing flange 231 by screws.

[0045] In one specific embodiment, the elastic element 21 is a compression spring.

[0046] like Figure 3 , Figure 4 and Figures 6 to 8 As shown, in one embodiment, the left half-cabin 11 and the right half-cabin 12 are respectively fixed with multiple slide rail mechanisms 2, and the multiple slide rail mechanisms 2 are arranged at intervals.

[0047] In this embodiment, multiple slide rail mechanisms 2 are respectively arranged at intervals in the left half-cabin 11 and the right half-cabin 12. The multiple slide rail mechanisms 2 are connected to the blade retracting plate 3, so that the force on the blade retracting plate 3 is more uniform when it moves along the slide rail mechanism 2, and the movement process is more stable.

[0048] Specifically, multiple sliding rail mechanisms 2 are parallel to each other and are spaced apart in the horizontal direction on the side wall of the storage compartment 1.

[0049] like Figures 3 to 4 and Figure 7 As shown, in one embodiment, the inner side of the storage compartment 1 is provided with a reinforcing rib 13, and the slide rail mechanism 2 is fixed on the reinforcing rib 13.

[0050] In this embodiment, a reinforcing rib 13 is provided on the inner side of the storage compartment 1, which can make the structure of the storage compartment 1 more stable. The slide rail mechanism 2 is fixed to the reinforcing rib 13, avoiding direct fixation to the side wall of the storage compartment 1, which would cause the side wall of the storage compartment 1 to deform or bend. By providing the reinforcing rib 13, the load-bearing requirements are met without the need to thicken the side wall of the storage compartment 1.

[0051] Specifically, multiple reinforcing ribs 13 are provided on the inner side of the top and side walls of the storage compartment 1, and the number of reinforcing ribs 13 is not less than the number of slide rail mechanisms 2.

[0052] Specifically, the reinforcing rib 13 is provided with a slide rail mechanism mounting hole for mounting the slide rail mechanism 2, and a rivet nut is provided on the slide rail mechanism mounting hole to fix the slide rail mechanism 2 to the slide rail mechanism mounting hole of the reinforcing rib 13.

[0053] like Figure 6 , Figure 8 and Figure 10 As shown, in one embodiment, the blade folding plate 3 includes a connecting part 34, which is correspondingly provided at the connection points of the adjacent side walls of the storage compartment 1. The side wall of the connecting part 34 near the blade 4 is an arc surface, the radius direction of the arc surface is consistent with the radius direction of the blade 4, and the radius of the arc surface is greater than the radius of the blade 4. The distance between the connecting part 34 and the blade rotation center 41 is less than the radius of the blade 4.

[0054] In this embodiment, the connecting part 34 of the blade retracting plate 3 is correspondingly set to the connection point of the adjacent two side walls of the storage compartment 1, and the side wall surface of the connecting part 34 near the blade 4 is set as an arc surface, so that the radius of the arc surface is larger than the radius of the blade 4. During the blade 4 retracting process, the blade 4 can slide smoothly along the connecting part 34, making the blade 4 retracting process smoother and preventing the blade 4 from getting stuck at the connecting part 34 during the blade 4 retracting process.

[0055] like Figure 3 and Figures 5 to 8 As shown, in one embodiment, the first blade retractor plate 31 includes a first protrusion 311, which protrudes from the edge where the left half-cabin 11 and the right half-cabin 12 meet. The second blade retractor plate 32 includes a second protrusion 321, which protrudes from the edge where the right half-cabin 12 and the left half-cabin 11 meet. The first protrusion 311 and the second protrusion 321 are staggered in a direction perpendicular to the plane of motion of the storage compartment 1.

[0056] In this embodiment, a first protrusion 311 and a second protrusion 321 are respectively provided on the first blade folding plate 31 and the second blade folding plate 32 to prevent the blade 4 from being broken by inserting the end of the blade 4 into the gap between the storage compartment 1 and the blade folding plate 3, thus preventing damage to the blade 4. The first protrusion 311 and the second protrusion 321 are staggered in a direction perpendicular to the plane of motion of the storage compartment 1. When the left half compartment 11 and the right half compartment 12 are closed, the first protrusion 311 and the second protrusion 321 overlap, avoiding interference between the first protrusion 311 and the second protrusion 321, which would affect the closing of the storage compartment 1.

[0057] Specifically, there are two first protrusions 311, which are respectively located at the mating edge of the first sidewall 111 and the third sidewall 121 and the mating edge of the second sidewall 112 and the fourth sidewall 122; there are two second protrusions 321, which are respectively located at the mating edge of the third sidewall 121 and the first sidewall 111 and the mating edge of the fourth sidewall 122 and the second sidewall 112.

[0058] Specifically, the first protrusion 311 and the second protrusion 321 protrude 4 to 8 centimeters from the mating edge.

[0059] Specifically, the distance between the side wall of the first blade retracting plate 31 away from the first side wall 111 and the inner wall surface of the first side wall 111 is d1, and the distance between the side wall of the second blade retracting plate 32 near the third side wall 121 and the inner wall surface of the third side wall 121 is d2, where d1 is less than d2. Alternatively, the distance between the side wall of the first blade retracting plate 31 near the first side wall 111 and the inner wall surface of the first side wall 111 is d1, and the distance between the side wall of the second blade retracting plate 32 away from the third side wall 121 and the inner wall surface of the third side wall 121 is d2, where d1 is greater than d2. 2; The distance between the side wall of the first blade retracting plate 31 away from the second side wall 112 and the inner wall of the second side wall 112 is d3, and the distance between the side wall of the second blade retracting plate 32 near the fourth side wall 122 and the inner wall of the fourth side wall 122 is d4, where d3 is less than d4; or, the distance between the side wall of the first blade retracting plate 31 near the second side wall 112 and the inner wall of the second side wall 112 is d3, and the distance between the side wall of the second blade retracting plate 32 away from the fourth side wall 122 and the inner wall of the fourth side wall 122 is d4, where d3 is greater than d4.

[0060] like Figure 1 , Figure 4 , Figure 6 and Figure 8 As shown, in one embodiment, the left half-cabin 11 includes a first sidewall 111 and a second sidewall 112, and the right half-cabin 12 includes a third sidewall 121 and a fourth sidewall 122. When the storage compartment 1 is in the closed state, the first sidewall 111 is connected to the third sidewall 121, and the second sidewall 112 is connected to the fourth sidewall 122. The first propeller folding plate 31 is a split structure, including a first folding plate 312 and a second folding plate 313. The left half-cabin 11 includes a fifth sidewall 113 disposed between the first sidewall 111 and the second sidewall 112. The two ends of the first folding plate 312 are respectively fixed to the first sidewall 111 and the fifth sidewall 113. The two ends of the folding plate 313 are fixed to the second side wall 112 and the fifth side wall 113 respectively. The first folding plate 312 and the second folding plate 313 are spaced apart. And / or, the second blade folding plate 32 is a split structure. The second blade folding plate 32 includes a third folding plate 322 and a fourth folding plate 323. The right half-cabin 12 includes a sixth side wall 123 disposed between the third side wall 121 and the fourth side wall 122. The two ends of the third folding plate 322 are fixed to the third side wall 121 and the sixth side wall 123 respectively. The two ends of the fourth folding plate 323 are fixed to the fourth side wall 122 and the sixth side wall 123 respectively. The third folding plate 322 and the fourth folding plate 323 are spaced apart.

[0061] In this embodiment, the first blade retracting plate 31 and the second blade retracting plate 32 are separate structures. The first blade retracting plate 31 includes a first retracting plate 312 and a second retracting plate 313, and the second blade retracting plate 32 includes a third retracting plate 322 and a fourth retracting plate 323. This allows the weight and volume of a single blade retracting plate 3 to be smaller, facilitating the movement of the blade retracting plate 3. Furthermore, the first retracting plate 312 and the second retracting plate 313 are spaced apart, and the third retracting plate 322 and the fourth retracting plate 323 are spaced apart. This reduces the overall weight and range of the blade retracting plate 3 without affecting the normal retraction of the blades 4, making the overall structure lighter and reducing the load on the slide rail mechanism 2 and the storage compartment 1.

[0062] According to an embodiment of the present invention, in another aspect, a drone hangar is also provided, the drone hangar including a propeller retraction device.

[0063] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A propeller retraction device for a drone hangar, characterized in that, The drone hangar includes a parking apron (5) and a storage compartment (1) covering the parking apron (5). The storage compartment (1) includes a left half compartment (11) and a right half compartment (12). The left half compartment (11) and the right half compartment (12) are respectively located on opposite sides of the drone hangar. The closing process of the storage compartment (1) includes a first stage and a second stage. The drone hangar is set on the base plane. In the first stage, the left half-compartment (11) and the right half-compartment (12) move away from the base plane and the left half-compartment (11) and the right half-compartment (12) move closer to each other, so that the left half-compartment (11) and the right half-compartment (12) fit together. In the second stage, the left half-compartment (11) and the right half-compartment (12) move towards the base plane until the storage compartment (1) and the hangar body (6) are closed. The blade retraction device is installed in the storage compartment (1), and the blade retraction device includes: The slide rail mechanism (2) is installed on the left half-cabin (11) and the right half-cabin (12), respectively. The slide rail mechanism (2) is installed on one side of the storage compartment (1) located inside the UAV hangar. The blade retractor (3) is installed on the storage compartment (1) via the slide rail mechanism (2). The blade retractor (3) includes a first blade retractor (31) and a second blade retractor (32). The first blade retractor (31) is installed on the left half compartment (11), and the second blade retractor (32) is installed on the right half compartment (12). In the second stage of the closing process of the storage compartment (1), the blade retractor (3) moves along the slide rail in the height direction of the UAV hangar relative to the storage compartment (1), so that the height of the blade retractor (3) corresponds to the height of the blade (4).

2. The propeller retraction device for a drone hangar according to claim 1, characterized in that, In the second stage, the blade folding plate (3) is located within the vertical projection range of the landing pad (5), and the blade folding plate (3) abuts against the landing pad (5), causing the blade folding plate (3) to move away from the base plane relative to the storage compartment (1).

3. The propeller retraction device for a drone hangar according to claim 2, characterized in that, The blade retracting plate (3) is provided with a fixing part (33), and the slide rail mechanism (2) includes an elastic element (21), which is located on the side of the fixing part (33) away from the base plane.

4. The propeller retraction device for a drone hangar according to claim 3, characterized in that, The slide rail mechanism (2) includes a linear guide rail (22) and a linear bearing (23) sleeved on the linear guide rail (22). The fixing part (33) is fixed to the linear bearing (23). The elastic element (21) is sleeved on the linear guide rail (22) and located between the linear bearing (23) and the end of the linear guide rail (22) away from the base plane.

5. The propeller retraction device for a drone hangar according to any one of claims 1 to 4, characterized in that, The left half-cabin (11) and the right half-cabin (12) are respectively fixed with a plurality of sliding rail mechanisms (2), and the plurality of sliding rail mechanisms (2) are arranged at intervals.

6. The propeller retraction device for a drone hangar according to any one of claims 1 to 4, characterized in that, The storage compartment (1) is provided with a reinforcing rib (13) on its inner side, and the slide rail mechanism (2) is fixed on the reinforcing rib (13).

7. The propeller retraction device for a drone hangar according to any one of claims 1 to 4, characterized in that, The blade folding plate (3) includes a connecting part (34), which is correspondingly provided at the connection points of the adjacent side walls of the storage compartment (1). The side wall of the connecting part (34) near the blade (4) is an arc surface. The radius direction of the arc surface is consistent with the radius direction of the blade (4), and the radius of the arc surface is greater than the radius of the blade (4). The distance between the connecting part (34) and the blade rotation center (41) is less than the radius of the blade (4).

8. The propeller retraction device for a drone hangar according to any one of claims 1 to 4, characterized in that, The first blade folding plate (31) includes a first protrusion (311) that protrudes from the mating edge of the left half-cabin (11) and the right half-cabin (12). The second blade folding plate (32) includes a second protrusion (321) that protrudes from the mating edge of the right half-cabin (12) and the left half-cabin (11). The first protrusion (311) and the second protrusion (321) are staggered in a direction perpendicular to the plane of motion of the storage compartment (1).

9. The propeller retraction device for a drone hangar according to any one of claims 1 to 4, characterized in that, The left half-cabin (11) includes a first side wall (111) and a second side wall (112), and the right half-cabin (12) includes a third side wall (121) and a fourth side wall (122). When the storage compartment (1) is in the closed state, the first side wall (111) is connected to the third side wall (121), and the second side wall (112) is connected to the fourth side wall (122). The first blade folding plate (31) is a split structure, comprising a first folding plate (312) and a second folding plate (313). The left half-cabin (11) includes a fifth sidewall (113) disposed between the first sidewall (111) and the second sidewall (112). The two ends of the first folding plate (312) are respectively fixed to the first sidewall (111) and the fifth sidewall (113), and the two ends of the second folding plate (313) are respectively fixed to the second sidewall (112) and the fifth sidewall (113). The first folding plate (312) and the second folding plate (313) are spaced apart. And / or, the second blade folding plate (32) is a split structure, the second blade folding plate (32) includes a third folding plate (322) and a fourth folding plate (323), the right half-cabin (12) includes a sixth side wall (123) disposed between the third side wall (121) and the fourth side wall (122), the two ends of the third folding plate (322) are respectively fixed to the third side wall (121) and the sixth side wall (123), the two ends of the fourth folding plate (323) are respectively fixed to the fourth side wall (122) and the sixth side wall (123), and the third folding plate (322) and the fourth folding plate (323) are spaced apart.

10. A hangar for unmanned aerial vehicles (UAVs), characterized in that, The drone hangar includes a propeller retraction device according to any one of claims 1 to 9.

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