Door opening and closing system for saving nest space of unmanned aerial vehicle

Abstract

The door opening and closing system for saving the space of the unmanned aerial vehicle nest is arranged on the unmanned aerial vehicle nest and comprises a cabin door opening and closing system and a landing platform lifting system, and the cabin door opening and closing system is in linkage with the landing platform lifting system; in the process that the landing platform lifting system pushes the unmanned aerial vehicle landing platform to ascend, the cabin door opening and closing system pushes the cabin door to slide to the side face position of the aircraft nest cabin body from the top horizontal position. In the process that the landing platform lifting system pushes the unmanned aerial vehicle landing platform to descend, the cabin door opening and closing system pushes the cabin door to ascend from the side face position of the nest cabin body to the top horizontal position. According to the door opening and closing system, in the door opening process, the cabin doors are folded and moved towards the two sides at the same time, the lateral space occupied by conventional translation towards the two sides is saved, and therefore the unfolding space in and after cabin opening of an unmanned aerial vehicle nest is reduced, meanwhile, the lifting platform is automatically lifted along with the door opening process, and two power devices are not needed; and the material cost and the production cost are saved.

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology and relates to an opening and closing door system for saving UAV nest space. Background Technology

[0002] A drone rendezvous is a landing station for unmanned aircraft controlled via remote network control equipment. It helps drones with wind, rain, and theft protection, automatic power replenishment, and remote control of flight missions and plans. In the past decade or so, drones have been widely used in aerial photography, power line inspection, environmental monitoring, forest fire prevention, disaster relief, counter-terrorism and rescue, military reconnaissance, and battlefield assessment.

[0003] Currently, when a drone's pod moves from a closed to an open state, the door occupies approximately 2 to 3 times the additional obstacle avoidance space during its opening and closing motion, making pod deployment and use in space-constrained scenarios inconvenient. Furthermore, existing technologies separate the power systems for opening the door and the lifting platform, resulting in complex structures, high costs, and difficulties in production. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes an opening and closing door system for saving space in UAV nests. During the opening process, the door folds and moves to both sides simultaneously, saving the lateral space occupied by conventional lateral movement, thereby reducing the deployment space of the UAV nest during and after opening. At the same time, the lifting platform also rises automatically during the opening process, eliminating the need for two sets of power units and saving material and production costs.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A door opening and closing system for saving space in UAV nests, the door opening and closing system being installed on the UAV nest, the UAV nest including a door, a nest body and a UAV landing platform, the door opening and closing system including a door opening and closing system and a landing platform lifting system, the door opening and closing system and the landing platform lifting system being linked together;

[0007] During the process of the landing platform lifting system pushing the UAV landing platform to rise, the hatch opening and closing system pushes the hatch to slide down from the top flat position to the side position of the nest body.

[0008] During the descent of the UAV landing platform, the landing platform lifting system pushes the hatch from the side of the nest body to the top flat position.

[0009] In the above technical solution, the UAV nest is symmetrically provided with two hatches and two sets of hatch opening and closing systems, and both sets of hatch opening and closing systems are linked to the landing platform lifting system.

[0010] In the above technical solution, the hatch opening and closing system includes a first slider, a first slide rail, a first seat bearing, a hinge, a third seat bearing, a second connecting rod, a second seat bearing, and a first connecting rod;

[0011] The left and right edges of the inner side of the hatch are each provided with a first slide rail in the vertical direction. The first slide rail is provided with a matching first slider. The first slider is fixed to the top side of the nest body by the hinge.

[0012] Each of the two first slide rails is fixed with a first seat bearing at the top of the hatch. The first seat bearing is connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the second seat bearing located on the side of the UAV landing platform.

[0013] The first connecting rod has a hole near the middle, and a third bearing is installed on the lower side of the nest body near the hinge mounting side. The hole near the middle of the first connecting rod is connected to the third bearing through the second connecting rod.

[0014] The landing platform lifting system includes a lifting electric device that controls the lifting and lowering of the UAV landing platform. The bottom of the lifting electric device is connected to the bottom of the nest compartment, and the top is connected to the bottom of the UAV landing platform.

[0015] In the above technical solution, the lifting electric device includes a positive and negative tooth center rotating shaft, a motor, two third sliders and two connecting rods;

[0016] The forward and reverse tooth center rotating shaft is located at the bottom of the drone housing. The two third sliders are respectively located at the forward and reverse tooth positions of the forward and reverse tooth center rotating shaft. The bottom ends of the two connecting rods are respectively connected to the tops of the two third sliders. The upper ends of the two connecting rods are respectively connected to the two sides of the bottom of the drone landing platform. The motor is coaxially connected to the forward and reverse tooth center rotating shaft.

[0017] In the above technical solution, the lifting electric device is an electric push rod, with the free end located at the bottom of the UAV landing platform and the fixed end located at the bottom of the UAV nest compartment.

[0018] In the above technical solution, the landing platform lifting system also includes a second slide rail and a second slider. The second slide rail is symmetrically arranged vertically on both sides of the nest body near the lifting electric device. The second slider is provided on both sides of the UAV landing platform to match it. During the rising and falling of the UAV landing platform, the second slider slides up and down along the direction of the second slide rail.

[0019] In the above technical solution, the lifting electric device is equipped with a travel limit protection device, which ensures that the hatch can be fully opened without being over-opened when it is opened, and ensures that the hatch is closed and the lifting electric device stops working when it is closed.

[0020] The beneficial effects of the present invention are as follows: During the opening process, the hatch of the present invention folds and moves to both sides simultaneously, saving the lateral space occupied by conventional lateral movement, thereby reducing the deployment space of the UAV nest during and after opening. At the same time, the lifting platform also rises automatically during the opening process, eliminating the need for two sets of power units and saving material and production costs. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention in the single-door closed state;

[0022] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention in the single-door open state;

[0023] Figure 3 This is a schematic diagram of the lifting device of the present invention after it has been raised;

[0024] Figure 4 This is a schematic diagram of the lifting device of the present invention after it has been lowered.

[0025] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention with both doors closed;

[0026] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention with both doors open.

[0027] The components are: 1. hatch; 2. first slider; 3. first slide rail; 4. first seat bearing; 5. hinge; 6. third seat bearing; 7. second connecting rod; 8. pod body; 9. second seat bearing; 10. first connecting rod; 11. UAV landing platform; 12. electric lifting device; 13. second slide rail; 14. second slider; 15. forward and reverse toothed center pivot; 16. third slider; 17. connecting rod. Detailed Implementation

[0028] To better illustrate the objectives, technical solutions, and advantages of this invention, the invention will be further described below in conjunction with specific embodiments. This invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art. This invention will be defined only by the claims.

[0029] Example 1

[0030] Figure 1 This is a structural schematic diagram of Embodiment 1 with the single hatch closed. Figure 2 This is a structural schematic diagram of Embodiment 1 with a single door open. Figure 3 and Figure 4 This is a schematic diagram of the lifting system, combined with... Figure 1-4 As shown, Embodiment 1 is a single-door opening and closing system.

[0031] A door opening and closing system for saving space in UAV nests is provided. The UAV nest includes a door 1, a nest body 8, and a UAV landing platform 11.

[0032] The door opening and closing system of the present invention includes a first slider 2, a first slide rail 3, a first seat bearing 4, a hinge 5, a third seat bearing 6, a second connecting rod 7, a second seat bearing 9, a first connecting rod 10, a lifting electric device 12, a second slide rail 13, and a second slider 14.

[0033] Specifically, a first slide rail 3 is provided on each of the left and right edges of the inner side of the hatch 1 along the vertical direction. A first slider 2 is provided on the first slide rail 3 and is fixed to the top side of the nest body 8 by a hinge 5.

[0034] A first seat bearing 4 is fixed at the top of the hatch 1, located outside the two first slide rails 3. The first seat bearing 4 is connected to one end of the first connecting rod 10, and the other end of the first connecting rod 10 is connected to the second seat bearing 9 located on the side of the UAV landing platform 11.

[0035] The first connecting rod 10 has a hole near the middle. The third bearing 6 is installed on the lower side of the nest body 8 near the hinge 5 mounting side. The hole near the middle of the first connecting rod 10 and the third bearing 6 are connected by the second connecting rod 7.

[0036] The landing platform lifting system includes a lifting electric device 12, which controls the lifting and lowering of the UAV landing platform 11. The bottom of the lifting electric device 12 is connected to the bottom of the nest compartment 8, and the top is connected to the bottom of the UAV landing platform 11.

[0037] The two sides of the drone landing platform 11 are provided with second slide rails 13 symmetrically in the vertical direction near the electric lifting device 12. The two sides of the drone landing platform 11 are provided with matching second sliders 14. During the rise and fall of the drone landing platform 11, the second sliders 14 slide up and down along the second slide rails 13.

[0038] The lifting electric device 12 includes a forward and reverse toothed center rotating shaft 15, a motor, two third sliders 16, and two connecting rods 17. The forward and reverse toothed center rotating shaft 15 is located at the bottom of the drone housing 8. The two third sliders 16 are respectively located at the forward and reverse toothed positions of the forward and reverse toothed center rotating shaft 15. The bottom ends of the two connecting rods 17 are respectively connected to the tops of the two third sliders 16, and the upper ends of the two connecting rods 17 are respectively connected to the two sides of the bottom of the drone landing platform 11. The motor is coaxially connected to the forward and reverse toothed center rotating shaft 15.

[0039] When the motor rotates clockwise, it causes the third slider 16 to separate symmetrically to both sides, pushing the connecting rod 17 upward, thereby raising the drone landing platform 11. When the motor rotates counterclockwise, the drone landing platform 11 descends.

[0040] The lifting electric device 12 is used to push the UAV landing platform 11 upward. The UAV landing platform 11 pushes the first seat bearing 4 to make an arc motion through the linkage of the first connecting rod 10 and the second connecting rod 7. The first seat bearing 4 pushes the hatch 1 from the top flat position to the side of the nest body 8 through its own arc motion and under the constraint of the hinge 5, the first slide rail 3 and the first slider 2.

[0041] The lifting electric device 12 is equipped with a travel limit protection device, which ensures that the hatch 1 can be fully opened without being over-opened when it is opened, and ensures that the hatch 1 is closed and the lifting electric device 12 stops working when it is closed.

[0042] In one embodiment, the travel limit protection device is an opening limiter and a closing limiter. The opening limiter is fixed at the top of the lifting electric device 12, and the closing limiter is fixed at the bottom of the lifting electric device 12, which is used to limit the travel of the UAV landing platform 11.

[0043] Example 2

[0044] Example 2 is based on Example 1, but the structure such as the hatch is presented in a mirror-symmetric manner, changing from a single hatch to a double hatch. Other connection structures are the same as in Example 1. Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention with both hatches closed. Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention with both hatches open. (In conjunction with...) Figure 3-6 As shown, Embodiment 2 of the present invention is a dual-door opening and closing system.

[0045] Example 3

[0046] Based on Embodiment 1, the lifting electric device 12 can be replaced with other similar structures with lifting functions, such as an electric push rod, with the free end located at the bottom of the UAV landing platform 11 and the fixed end located at the bottom of the nest compartment 8.

[0047] Example 4

[0048] Based on Embodiment 2, the lifting electric device 12 can be replaced with other similar structures with lifting functions, such as an electric push rod, with the free end located at the bottom of the UAV landing platform 11 and the fixed end located at the bottom of the nest compartment 8.

[0049] Example 5

[0050] Based on Example 1, bearing components are added to all rotating joints of the connecting rods to reduce frictional resistance.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A switch door system for saving unmanned aerial vehicle nest space, the switch door system is arranged on an unmanned aerial vehicle nest, the unmanned aerial vehicle nest comprises a hatch door (1), a nest cabin body (8) and an unmanned aerial vehicle landing platform (11), characterized in that: The door opening and closing system comprises a hatch door opening and closing system and a landing platform lifting system, and the hatch door opening and closing system and the landing platform lifting system are linked together. During the process of pushing the unmanned aerial vehicle landing platform (11) to rise, the hatch door opening and closing system pushes the hatch door (1) to slide from the top flat position to the side position of the nest cabin body (8). During the process of pushing the unmanned aerial vehicle landing platform (11) to fall, the hatch door opening and closing system pushes the hatch door (1) to rise from the side position of the nest cabin body (8) to the top flat position.

2. The door opening system according to claim 1, wherein: Two hatch doors (1) and two sets of hatch door opening and closing systems are symmetrically arranged on the unmanned aerial vehicle nest, and the two sets of hatch door opening and closing systems are linked with the landing platform lifting system.

3. The door opening system of claim 1, wherein: The hatch door opening and closing system comprises a first sliding block (2), a first sliding rail (3), a first spherical bearing (4), a hinge (5), a third spherical bearing (6), a second connecting rod (7), a second spherical bearing (9) and a first connecting rod (10). The left and right edges of the inner side of the hatch door (1) are each provided with a first sliding rail (3) in the vertical direction, and the first sliding rail (3) is provided with a matching first sliding block (2), and the first sliding block (2) is fixed along the side of the top end of the nest cabin body (8) through the hinge (5). The top of the hatch door (1) is fixed with a first spherical bearing (4) at a position outside the two first sliding rails (3), one end of the first spherical bearing (4) is connected with the first connecting rod (10), and the other end of the first connecting rod (10) is connected with the second spherical bearing (9) arranged on the side of the unmanned aerial vehicle landing platform (11). The first connecting rod (10) is provided with a hole near the middle part, and a third spherical bearing (6) is arranged on the lower side of the installation side of the hinge (5) of the nest cabin body (8), and the hole near the middle part of the first connecting rod (10) and the third spherical bearing (6) are connected through the second connecting rod (7). The landing platform lifting system comprises a lifting electric device (12), the lifting electric device (12) controls the lifting of the unmanned aerial vehicle landing platform (11), the bottom of the lifting electric device (12) is connected with the bottom of the nest cabin body (8), and the top is connected with the bottom of the unmanned aerial vehicle landing platform (11).

4. The door opening system of claim 3, wherein: The lifting electric device (12) comprises a reversible tooth center shaft (15), a motor, two third sliding blocks (16) and two connecting rods (17). The reversible tooth center shaft (15) is arranged at the bottom of the nest cabin body (8), the two third sliding blocks (16) are respectively arranged at the tooth and reverse tooth positions of the reversible tooth center shaft (15), the bottom ends of the two connecting rods (17) are respectively connected with the tops of the two third sliding blocks (16), the upper ends of the two connecting rods (17) are respectively connected with the two sides of the bottom of the unmanned aerial vehicle landing platform (11), and the motor is coaxially connected with the reversible tooth center shaft (15).

5. The door opening system of claim 3, wherein: The lifting electric device (12) is an electric push rod, the free end of which is arranged at the bottom of the UAV landing platform (11), and the fixed end of which is arranged at the bottom of the nest cabin (8).

6. The door opening system of claim 1, wherein: The landing platform lifting system further comprises a second sliding rail (13) and a second sliding block (14), the nest cabin (8) is vertically symmetrically provided with the second sliding rail (13) near the position of the lifting electric device (12) on both sides, and the UAV landing platform (11) is provided with the second sliding block (14) matched therewith on both sides, the second sliding block (14) slides up and down along the second sliding rail (13) during the process of the UAV landing platform (11) rising and falling.

7. The door opening system of claim 1, wherein: The lifting electric device (12) is provided with a stroke limiting protection device, which enables the cabin door (1) to be completely opened without being excessively opened when the cabin door (1) is opened, and ensures that the cabin door (1) is closed and the lifting electric device (12) stops working when the cabin door (1) is closed.

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