Cabin-entering propeller collecting device of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle cabin-entering propeller collecting device which comprises a cabin body, a cabin door, a translation driving mechanism, two supporting rods and two brushes. The cabin door is hinged to the cabin body, and a paddle collecting plate is further installed on the inner side of the cabin door. The two supporting rods are arranged on one side in the cabin body, and one end of each supporting rod is connected with one end of the inner side of the cabin door. By actually simulating the motion trail of the airplane paddle, structuring the data of the airplane paddle and combining with the door opening mechanism of the automatic airport, the step of automatically retracting the paddle along with door closing can be completed, the overall design is reasonable, the structure is compact, the occupied volume of the airport is reduced, and meanwhile, due to the fact that automatic cabin retracting is achieved without depending on aircraft communication, the space is saved. And the cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a propeller retracting device for an unmanned aerial vehicle to enter a cabin. Background Technique

[0002] An unmanned aerial vehicle automatic airport can store unmanned aerial vehicles and provide the function of automatic charging for the unmanned aerial vehicles. At present, existing automatic airports are usually limited by the volume of the propeller blades of the unmanned aerial vehicle after landing, so the volume of the airport is also very large, and it is often limited by the spatial position in some deployments and operations. At this time, the propeller retracting structure can greatly reduce this volume problem. Commonly used on the market is to let the propeller blades of the aircraft retract into the cabin while rotating slowly. When the propeller blades encounter an obstacle, they will automatically fold due to the resistance until the whole enters the cabin. However, this technology requires very high requirements for the aircraft and communication control, the cost is relatively high, and the structure is relatively complex. Therefore, it needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a propeller retracting device for an unmanned aerial vehicle to enter a cabin. The device structures the data by actually simulating the movement track of the aircraft propeller blades, and combines with the door opening mechanism of the automatic airport, so that it can complete the automatic propeller retracting step along with the closing of the door. The overall design is reasonable and the structure is compact, reducing the occupied volume of the airport. At the same time, since the automatic cabin entry is not realized by relying on the aircraft communication, the cost is reduced.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A propeller retracting device for an unmanned aerial vehicle to enter a cabin includes a cabin body, and also includes a cabin door, a translation driving mechanism, two support rods, and two brushes; the cabin door is hinged to the cabin body, and a propeller retracting plate is further installed on the inner side of the cabin door; the two support rods are respectively arranged on one side inside the cabin body, and one ends of the two support rods are respectively connected to one end of the inner side of the cabin door; the translation driving mechanism is installed inside the cabin body, and the translation driving mechanism is also drivingly connected with two translation seats; the other end of each support rod is respectively hinged to a translation seat; the two brushes are respectively arranged on one side inside the cabin body, and each brush is respectively connected to a translation seat.

[0006] Further, the propeller retracting plate is in a concave arc structure, and the concave part of the propeller retracting plate faces the direction of the brush; one ends of the two brushes extend into the propeller retracting plate.

[0007] Further, the translation driving mechanism includes a rotation driving component and two transmission lead screws; the two transmission lead screws are respectively arranged on one side of a support rod, and a lead screw nut is installed on each transmission lead screw; each translation seat is installed on a lead screw nut; the rotation driving component is connected to the two transmission lead screws, and the rotation driving component is used to drive the two transmission lead screws to rotate synchronously.

[0008] Further, the rotation drive assembly includes a rotation motor, a driving wheel connected to the output shaft of the rotation motor, a plurality of driven wheels installed in the cabin, a synchronous wheel installed on the transmission screw rod, and a synchronous belt wound around the driving wheel, the driven wheels and the synchronous wheel.

[0009] Further, a reinforcing frame is also connected to the inner side of the cabin door, and one end of the support rod is connected to the reinforcing frame.

[0010] Adopting the above solution, the beneficial effects of the present utility model are as follows:

[0011] By actually simulating the movement trajectory of the aircraft blade, structuring its data, and combining with the door opening mechanism of the automatic airport, the present utility model can complete the step of automatically retracting the blade along with the closing of the door. Its overall design is reasonable and the structure is compact, reducing the occupied volume of the airport. At the same time, since it does not rely on aircraft communication to achieve automatic cabin closing, the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a perspective view of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the blade retraction inside the unmanned cabin when the present utility model is actually applied;

[0015] Among them, the description of the attached drawing reference numerals:

[0016] 1, cabin door; 2, translation drive mechanism; 3, support rod; 4, brush; 5, blade retraction plate; 11, reinforcing frame; 21, transmission screw rod; 22, screw nut; 23, rotation motor; 24, driving wheel; 25, driven wheel; 26, synchronous wheel; 27, synchronous belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Refer to Figures 1 to 3As shown in the figure, the present utility model provides a propeller retracting device for an unmanned aerial vehicle, which includes a cabin body. In one embodiment, it further includes a cabin door 1, a translation driving mechanism 2, two support rods 3, and two brushes 4; the cabin door 1 is hinged to the cabin body, and a propeller retracting plate 5 is further installed on the inner side of the cabin door 1; the two support rods 3 are respectively arranged on one side inside the cabin body, and one end of each of the two support rods 3 is respectively connected to one end inside the cabin door 1; the translation driving mechanism 2 is installed inside the cabin body, and the translation driving mechanism 2 is also drivingly connected to two translation seats; the other end of each support rod 3 is respectively hinged to a translation seat; the two brushes 4 are respectively arranged on one side inside the cabin body, and each brush 4 is respectively connected to a translation seat.

[0019] In this embodiment, both ends of the cabin door 1 are hinged to the cabin body through hinges. The two support rods 3 are arranged in parallel at intervals. One end of each support rod 3 is connected to the inside of the cabin door 1, and the other end of the support rod 3 is hinged to the translation seat. The translation driving mechanism 2 can drive the translation seat to move, thereby driving the support rod 3 to move, and then opening or closing the cabin door 1. At the same time, the brush 4 is also connected to the translation seat, and the brush 4 will also be driven to translate when the translation seat moves. When the unmanned aerial vehicle needs to retract the propeller into the cabin, first, the translation driving mechanism 2 drives the support rod 3 to move forward to open the cabin door 1. At this time, the brush 4 moves to the front edge of the cabin body; subsequently, the unmanned aerial vehicle enters the cabin, and the propellers will first touch the brush 4. After the front and rear groups of propellers encounter resistance, they will both rotate to the inside. Immediately afterwards, the translation driving mechanism 2 drives the support rod 3 to move backward to close the cabin door 1, and the propeller retracting plate 5 gathers and aligns the propellers towards the inside of the cabin along the rotation trajectory of the propellers.

[0020] To improve the propeller retracting effect, the propeller retracting plate 5 is in an inwardly concave arc structure (which is convenient for gathering and aligning the propellers towards the inside of the cabin along the rotation trajectory of the propellers), and the inwardly concave part of the propeller retracting plate 5 is arranged towards the direction of the brush 4; one end of each of the two brushes 4 extends into the propeller retracting plate 5. The two brushes 4 and the inwardly concave part of the propeller retracting plate 5 enclose a propeller retracting space, and the propellers can be wrapped therein.

[0021] In one embodiment, the translation driving mechanism 2 includes a rotation driving component and two transmission lead screws 21; the two transmission lead screws 21 are respectively arranged on one side of a support rod 3, and a lead screw nut 22 is further installed on each transmission lead screw 21; each translation seat is installed on a lead screw nut 22; the rotation driving component is connected to the two transmission lead screws 21, and the rotation driving component is used to drive the two transmission lead screws 21 to rotate synchronously. Through the transmission lead screw 21 and the lead screw nut 22, the rotational motion can be converted into a linear motion, and then the support rod 3 can be driven to move through the lead screw nut 22 and the translation seat to open or close the cabin door 1. At the same time, there are two transmission lead screws 21, which can improve the stability of the movement of the support rod 3.

[0022] In one embodiment, the rotary drive assembly includes a rotary motor 23, a driving wheel 24 connected to the output shaft of the rotary motor 23, a plurality of driven wheels 25 installed in the cabin, a synchronous pulley 26 installed on the transmission lead screw 21, and a synchronous belt 27 wound around the driving wheel 24, the driven wheels 25 and the synchronous pulley 26. The rotary motor 23 can drive the driving wheel 24 to rotate. When the driving wheel 24 rotates, the synchronous pulley 26 can be driven to rotate via the synchronous belt 27, thereby driving the two transmission lead screws 21 to rotate. In addition, a reinforcing frame 11 is connected to the inner side of the cabin door 1, and one end of the support rod 3 is connected to the reinforcing frame 11. The cabin door 1 is connected with the reinforcing frame 11, which can improve the overall rigidity of the structure, making it not easily deformed when subjected to external forces (such as wind pressure, mechanical impact, etc.), thus ensuring the integrity of the structure of the cabin door 1.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A propeller retracting device for a drone, comprising a cabin, characterized in that: It also includes a cabin door, a translation drive mechanism, two support rods, and two brushes; the cabin door is hinged to the cabin body, and a paddle retracting plate is also installed on the inner side of the cabin door; the two support rods are respectively arranged on one side of the cabin body, and one end of the two support rods is respectively connected to one end on the inner side of the cabin door; the translation drive mechanism is installed in the cabin body, and the translation drive mechanism is also driven and connected to two translation seats; the other end of each support rod is respectively hinged to a translation seat; the two brushes are respectively arranged on one side of the cabin body, and each brush is also respectively connected to a translation seat.

2. The propeller retracting device for a drone according to claim 1, characterized in that: The paddle collecting plate is in a concave arc structure, and the concave part of the paddle collecting plate is arranged toward the brush; one end of the two brushes extends into the paddle collecting plate.

3. The propeller retracting device for a drone according to claim 1, characterized in that: The translation drive mechanism includes a rotation drive assembly and two transmission screws; the two transmission screws are respectively arranged on one side of a support rod, and each transmission screw is also equipped with a screw nut; each translation seat is installed on a screw nut; the rotation drive assembly is connected to the two transmission screws, and the rotation drive assembly is used to drive the two transmission screws to rotate synchronously.

4. The propeller retracting device for a drone according to claim 3, characterized in that: The rotary drive assembly includes a rotary motor, a driving wheel connected to the output shaft of the rotary motor, a plurality of driven wheels installed in the cabin, a synchronous wheel installed on the transmission screw, and a synchronous belt wound around the driving wheel, the driven wheel and the synchronous wheel.

5. The propeller retracting device for a drone according to claim 1, characterized in that: The inner side of the hatch is also connected to a reinforcement frame, and one end of the support rod is connected to the reinforcement frame.

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