Door opening and closing device and unmanned aerial vehicle airport

Abstract

The utility model provides a door opening and closing device and an unmanned aerial vehicle airport. The door opening and closing device comprises a driving unit, a transmission main shaft, two bearing seats and two rotating pairs, the transmission main shaft penetrates through the driving unit and is driven to rotate through the driving unit, and the first rotating pair comprises a first rotating shaft and a first swing arm connected with one end of the first rotating shaft; the second rotating pair comprises a second rotating shaft and a second swing arm connected with one end of the second rotating shaft; the two bearing seats are the first bearing seat and the second bearing seat respectively, the transmission main shaft drives the first swing arm and the second swing arm to move through the first rotating shaft and the second rotating shaft respectively, a rocker swing arm mechanism is adopted, and the swing arms are the same in length, so that the door body can be balanced on the ground to move and cannot turn over. The driving unit drives the transmission main shaft to drive the revolute pair to move, so that the purpose of opening and closing the door is achieved, the door body is always balanced with the ground when acting, the protection performance of the door body is improved, and faults caused by accumulated water and dirt are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a door opening and closing device and an unmanned aerial vehicle airport. Background Art

[0002] Drone airports are unmanned application carriers for drone industry scenarios. Drones can be deployed directly to the work site to solve the problem of manual commuting with drones. They can not only enhance the emergency operation capabilities of drones, but also greatly improve the operation efficiency. Since drones are operated outdoors, drone airports have extremely high requirements for safety, reliability, stability, and intelligence in order to ensure the placement conditions of drones and provide all-round protection. Through highly automated operations, drone airports not only improve the efficiency of task execution, but also save time and manpower and material costs, while also ensuring the standardization and uniformity of the task execution process.

[0003] The automation of drone airports generally includes opening and closing doors, charging or battery replacement. For example, the Chinese invention patent with announcement number CN117386255A discloses "guide rail transmission module, transmission mechanism, drone airport door and method of use thereof". It uses a sliding cover to achieve door opening and closing actions, but due to safety requirements for drone landing platforms, the door height is limited; and in order to close the door smoothly after the drone lands, a mechanism for lifting the drone is usually required, which makes the main body of the drone airport very large in size and weight and complex in structure.

[0004] The Chinese utility model patent with announcement number CN216783886U discloses "a drone airport" that uses a rotary cover to open and close the door. However, since the door is hidden under the main body of the airport when it is open, water easily accumulates in the door when it rains. When closing the door, the load on the action motor suddenly increases. Due to the difficulty in drainage, water easily enters the airport and causes failures. The reliability is insufficient in outdoor working environments. Utility Model Content

[0005] The purpose of the utility model is to provide a door opening and closing device and a drone airport, aiming to solve the technical problems of the prior art that the drone airport has a large body size and weight, a complex structure, and insufficient reliability in outdoor working environments.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: providing a door opening and closing device, which includes a driving unit, a transmission main shaft, two bearing seats and two rotating pairs; the transmission main shaft penetrates through the driving unit and is driven by the driving unit to rotate. The two rotating pairs are respectively a first rotating pair and a second rotating pair. The first rotating pair includes a first rotating shaft and a first swing arm connected to one end of the first rotating shaft; the second rotating pair includes a second rotating shaft and a second swing arm connected to one end of the second rotating shaft; the two bearing seats are respectively a first bearing seat and a second bearing seat. A first through hole is provided on the first bearing seat, and a second through hole is provided on the second bearing seat. The two ends of the transmission main shaft are respectively connected to the first rotating shaft and the second rotating shaft through the first through hole and the second through hole, and the transmission main shaft drives the first swing arm and the second swing arm to move respectively through the first rotating shaft and the second rotating shaft.

[0007] Furthermore, it further includes a third rotating pair and a fourth rotating pair. The third rotating pair includes a third rotating shaft and a third swing arm connected to one end of the third rotating shaft; the fourth rotating pair includes a fourth rotating shaft and a fourth swing arm connected to one end of the fourth rotating shaft; a third through hole is further provided on the first bearing seat, and a fourth through hole is provided on the second bearing seat. The other end of the third rotating shaft is connected to the first bearing seat through the third through hole; the other end of the fourth rotating shaft is connected to the second bearing seat through the fourth through hole.

[0008] The present utility model also provides an unmanned aerial vehicle airport, which includes a frame, two door bodies symmetrically arranged, and two aforementioned door opening and closing devices. The four bearing seats are respectively fixed at the symmetric four corners of the same plane of the frame, and the two door bodies are symmetrically connected to the frame through the two door opening and closing devices respectively.

[0009] Furthermore, hinge fulcrums are respectively provided on both sides of the door body. Rotating shafts are respectively provided at the ends of the first swing arm, the second swing arm, the third swing arm and the fourth swing arm. The first swing arm, the second swing arm, the third swing arm and the fourth swing arm are respectively connected to the hinge fulcrums on the door body through the rotating shafts.

[0010] Furthermore, elastic gaskets are provided on the hinge fulcrums.

[0011] Furthermore, hollow fixing seats are respectively provided on the symmetric two sides of the upper end face of the frame, and the hollow fixing seats are connected to the driving unit.

[0012] The beneficial effects of the present utility model are as follows: The door opening and closing device and the UAV airport provided by the present utility model drive the transmission main shaft to drive the rotating pair through the driving unit, so as to achieve the purpose of opening and closing the door. When the door body moves, it is always balanced with the ground. Therefore, the protection performance of the door body is improved, and it will not cause failures due to water accumulation and dirt. The door hinge is provided with a fulcrum constraint, and the running stability is better, and it can better resist the reliability of running in bad weather. The present utility model also adopts a rocker-link mechanism, in which the lengths of the opposite links are equal, so as to realize the balanced movement of the cabin door for opening and closing actions, with high running stability and strong anti-shaking ability under various conditions. Therefore, the running speed is faster than that of the sliding cover type and the rotating cover type. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 Structural schematic diagram of a door opening and closing device of the present utility model;

[0015] Figure 2 Structural schematic diagram of the door closing of a door opening and closing device of the present utility model;

[0016] Figure 3 Structural schematic diagram of the door closing of the UAV airport of the present utility model.

[0017] Label description:

[0018] 100, UAV airport; 10, door opening and closing device; 11, driving unit;

[0019] 12, transmission main shaft; 13, first bearing seat; 131, first through hole;

[0020] 13’, second bearing seat; 131’, second through hole; 132, third through hole;

[0021] 132’, fourth through hole; 14, first rotating shaft; 15, first swing arm;

[0022] 16, second rotating shaft; 17, second swing arm; 14’, third rotating shaft;

[0023] 15’, third swing arm; 16’, fourth rotating shaft; 17’, fourth swing arm;

[0024] 18, rotating shaft; 19, hollow fixing seat; 20, door body;

[0025] 30. Frame Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present 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 thus should not be construed as limiting the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Such as Figures 1 to 3As shown in the figure, an embodiment of the present utility model provides a door opening and closing device, which includes a driving unit 11, a transmission main shaft 12, two bearing seats and two rotating pairs; the transmission main shaft 12 passes through the driving unit 11 and is driven by the driving unit 11 to rotate the transmission main shaft 11. The two rotating pairs are respectively a first rotating pair and a second rotating pair. The first rotating pair includes a first rotating shaft 14 and a first swing arm 15 connected to one end of the first rotating shaft 14; the second rotating pair includes a second rotating shaft 16 and a second swing arm 17 connected to one end of the second rotating shaft 16; the two bearing seats are respectively a first bearing seat 13 and a second bearing seat 13'. The first bearing seat 13 is provided with a first through hole 131, and the second bearing seat 13' is provided with a second through hole 131'. The two ends of the transmission main shaft 12 are respectively connected to the first rotating shaft 14 and the second rotating shaft 16 through the first through hole 131 and the second through hole 131'. The transmission main shaft 12 drives the first swing arm 15 and the second swing arm 17 to move through the first rotating shaft 14 and the second rotating shaft 16 respectively.

[0031] The movement mode of the present utility model and the mechanical principle adopt a rocker swing arm mechanism, in which the lengths of the swing arms are the same, so that the door body can move balanced on the ground without flipping. The driving unit drives the transmission main shaft to drive the rotating pair to move, so as to achieve the purpose of opening and closing the door. When the door body moves, it is always balanced with the ground. Therefore, the protection performance of the door body is improved, and no failure will be caused by water accumulation and dirt.

[0032] Please refer to Figure 1 As shown in the figure, Embodiment 2 of the present utility model is: it further includes a third rotating pair and a fourth rotating pair. The third rotating pair includes a third rotating shaft 14' and a third swing arm 15' connected to one end of the third rotating shaft; the fourth rotating pair includes a fourth rotating shaft 16' and a fourth swing arm 17' connected to one end of the fourth rotating shaft; the first bearing seat 13 is further provided with a third through hole 132, and the second bearing seat 13' is provided with a fourth through hole 132'. The other end of the third rotating shaft 14' is connected to the first bearing seat 13 through the third through hole 132; the other end of the fourth rotating shaft 16' is connected to the second bearing seat 13' through the fourth through hole 132'.

[0033] This embodiment adopts a four-swing-arm structure, in which the lengths of the swing arms are equal, the running stability is higher, the anti-shaking ability is strong under various conditions, and the running speed is faster than that of the sliding cover type and the rotating cover type.

[0034] The present utility model further provides an unmanned aerial vehicle airport 100, which includes a frame 30, two symmetrically arranged door bodies 20 and two above-mentioned door opening and closing devices 10. The four bearing seats are respectively fixed at the symmetric four corners of the same plane of the frame 30, and the two door bodies 20 are respectively symmetrically connected to the frame 30 through the two door opening and closing devices 10.

[0035] An embodiment of a drone airport 100 provided by the present utility model, in the left-side structure, one end of the first swing arm 15 and the second swing arm 17 are respectively fixedly connected to the side surface of the left-side door body, and the other ends are respectively connected to the transmission main shaft 12 through the first rotating shaft 14 and the second rotating shaft 16. Two bearing seats are respectively fixed on the opposite sides of the frame 30. The left-side door is connected to the frame through a door opening and closing device. The right-side door and the left-side door are symmetrically arranged structures, which will not be elaborated here.

[0036] Preferably, as Figures 1 to 3 shown, the present utility model also provides an embodiment two of a drone airport, adopting a double swing arm structure. In the left-side structure, one end of the first swing arm 15 and the second swing arm 17 are respectively fixedly connected to the side surface of the left-side door body, and the other ends are respectively connected to the transmission main shaft 12 through the first rotating shaft 14 and the second rotating shaft 16. One end of the third swing arm 15' and the fourth swing arm 17' are respectively fixedly connected to the side surface of the left-side door body, and the other ends are respectively connected to the third rotating shaft 14' and the fourth rotating shaft 16'. The third rotating shaft 14' and the fourth rotating shaft 16' are respectively connected to two bearing seats through the third through hole 132 and the fourth through hole 132'. The right-side door body and the left-side door body are symmetrically arranged structures, which will not be elaborated here.

[0037] Principle of door opening and closing: When the driving unit 11 performs rotational output, it will drive the transmission main shaft 12 to perform rotational motion. Both ends of the transmission main shaft 12 are respectively connected to the first rotating shaft 14 and the second rotating shaft 16. The first rotating shaft 14 is connected to the first swing arm 15, and the second rotating shaft 16 is connected to the second swing arm 17, thereby driving the first swing arm 15 and the second swing arm 17 to perform rotational motion; the other ends of the first swing arm 15 and the second swing arm 17 are respectively connected to the left-side door, thereby driving the left-side door to complete the door opening or closing action. Preferably, the third rotating shaft 14' and the fourth rotating shaft 16' are respectively connected to the third swing arm 15' and the fourth swing arm 17'. One end of the third swing arm 15' and the fourth swing arm 17' are respectively connected to the bearing seats, and the other ends are respectively connected to the left-side door. At this time, the third swing arm 15' and the fourth swing arm 17' form a rotational motion pair with the bearing seats and rotate freely. The third swing arm 15' and the fourth swing arm 17' are rotated passively, jointly driving the left-side door body to move smoothly, and completing the door opening or closing action. The right-side door and the left-side door are symmetrically structured, which will not be elaborated here. Thus, the door body moves smoothly on the ground without flipping. When opening the door body, the moving direction of the door body is obliquely downward and can be completely lower than the drone landing plane, so the safety of drone landing is increased; and the height of the door body can be designed more freely without the need to perform lifting actions on the drone. When closing the door body, the drone can be completely enclosed.

[0038] Preferably, hinge fulcrums are respectively provided on both side surfaces of the door body. Rotating shafts 18 are respectively provided at the ends of the first swing arm 15, the second swing arm 17, the third swing arm 15', and the fourth swing arm 17'. The first swing arm, the second swing arm, the third swing arm, and the fourth swing arm are respectively connected to the hinge fulcrums on the door body 20 through the rotating shafts 18. Due to the provision of the hinge fulcrums and the rotating shaft constraints, the operation is more stable, and the reliability of operation in bad weather can be better resisted. The operation stability is higher, the anti-shaking ability is strong under various conditions, and the operation speed can be faster than that of the sliding cover type and the rotating cover type.

[0039] Preferably, elastic gaskets are provided on the hinge fulcrums. Strengthen buffering and improve the service life of parts.

[0040] Preferably, hollow fixed seats 19 are respectively provided on both sides of the upper end face of the frame 30 in a symmetric manner. The hollow fixed seats 19 are connected to the driving unit 11. Prevent the driving unit from shaking during operation, and improve the stability and movement accuracy of the swing arm.

[0041] In summary, for the door opening and closing device and the UAV airport provided by the present utility model, the driving unit drives the transmission main shaft to drive the rotating pair to move, so as to achieve the purpose of opening and closing the door. The UAV airport only needs two driving units and two transmission main shafts to drive the door body to move, and the door body is always balanced with the ground during movement. Therefore, the protection performance of the door body is improved, and faults will not be caused by water accumulation and dirt. The door body hinge is provided with fulcrum constraints, and the operation stability is better, and the reliability of operation in bad weather can be better resisted. Through the rocker-link mechanism, the balanced movement of the cabin door is realized for opening and closing actions, and the operation stability is higher, and the anti-shaking ability is strong under various conditions. Therefore, the operation speed is faster than that of the sliding cover type and the rotating cover type.

[0042] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the related technical field, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A door opening and closing device, characterized in that, It includes a driving unit, a transmission main shaft, two bearing seats and two rotating pairs; the transmission main shaft passes through the driving unit and is driven by the driving unit to rotate. The two rotating pairs are the first rotating pair and the second rotating pair respectively. The first rotating pair includes a first rotating shaft and a first swing arm connected to one end of the first rotating shaft; the second rotating pair includes a second rotating shaft and a second swing arm connected to one end of the second rotating shaft; the two bearing seats are the first bearing seat and the second bearing seat respectively. A first through hole is provided on the first bearing seat, and a second through hole is provided on the second bearing seat. The two ends of the transmission main shaft are respectively connected to the first rotating shaft and the second rotating shaft through the first through hole and the second through hole. The transmission main shaft drives the first swing arm and the second swing arm to move through the first rotating shaft and the second rotating shaft respectively.

2. The switch door device according to claim 1, characterized in that, It further includes a third rotating pair and a fourth rotating pair. The third rotating pair includes a third rotating shaft and a third swing arm connected to one end of the third rotating shaft; the fourth rotating pair includes a fourth rotating shaft and a fourth swing arm connected to one end of the fourth rotating shaft; a third through hole is further provided on the first bearing seat, and a fourth through hole is provided on the second bearing seat. The other end of the third rotating shaft is connected to the first bearing seat through the third through hole; the other end of the fourth rotating shaft is connected to the second bearing seat through the fourth through hole.

3. An unmanned aerial vehicle airport, characterized in that, It includes a frame, two door bodies symmetrically arranged, and two switch door devices as described in claim 1 or claim 2. The four bearing seats are respectively fixed at the symmetric four corners of the same plane of the frame, and the two door bodies are symmetrically connected to the frame through the two switch door devices respectively.

4. The UAV airport according to claim 3, characterized in that, Hinge supports are respectively provided on both sides of the door body. Rotating shafts are respectively provided at the ends of the first swing arm, the second swing arm, the third swing arm and the fourth swing arm. The first swing arm, the second swing arm, the third swing arm and the fourth swing arm are respectively connected to the hinge supports on the door body through the rotating shafts.

5. The UAV airport according to claim 4, characterized in that, Elastic gaskets are provided on the hinge supports.

6. The UAV airport according to claim 3, wherein, Hollow fixing seats are respectively provided on the symmetric two sides of the upper end face of the frame, and the hollow fixing seats are connected to the driving unit.

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