WO2019134396A1

WO2019134396A1 - Paddle protection structure and unmanned aerial vehicle

Info

Publication number: WO2019134396A1
Application number: PCT/CN2018/106007
Authority: WO
Inventors: 张彬; 孙亮; 金时润
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2018-01-05
Filing date: 2018-09-17
Publication date: 2019-07-11
Also published as: CN207997979U; CN110520357A

Abstract

A paddle protection structure and an unmanned aerial vehicle, relating to the technical field of unmanned aerial equipment. The paddle protection structure is applied to an unmanned aerial vehicle and comprises a first frame part (1) and a support part (2); the first frame component (1) comprises a surrounding frame (11) and a top frame (12); the top frame (12) is connected to the top of the surrounding frame (11); the support part (2) is connected to the top frame (12); the surrounding frame (11) is adapted to be connected to a protection cover (3) of a paddle (5) of the unmanned aerial vehicle; an accommodating space defined by the first frame part (1) is used for accommodating the paddle (5); the support part (2) is used for preventing the top frame (12) from contacting the paddle (5). The paddle protection structure is simple in structure and low in processing difficulty, and has relatively good protection performance to a paddle without affecting endurance of the unmanned aerial vehicle; the protection costs are relatively low and demands of ordinary users can be satisfied.

Description

Blade protection structure and unmanned aerial vehicle

Technical field

Embodiments of the present invention relate to the field of unmanned flight equipment, and in particular, to a blade protection structure and an unmanned aerial vehicle.

Background technique

With the rapid development of technology, unmanned aerial vehicles have gradually acquired more users. However, during the use of unmanned aerial vehicles, especially when the blades are not provided with protective devices, the blades are thin and sharp. The characteristics make the high-speed rotation of the blade easy to cause damage to the user.

Therefore, in order to avoid this problem, existing UAVs will be equipped with corresponding protection devices to avoid the safety problems that may be caused by the blades. However, the endurance of the UAV is closely related to its take-off weight. Increasing the closed-end protection device will increase the overall weight of the UAV, thus seriously affecting its endurance.

Therefore, in order to balance the endurance and protection effects, the existing protection device simplifies the structure under the weight limitation, such as a simple plastic frame type protection device, but it is difficult to provide a comprehensive protection effect on the blade.

Summary of the invention

In order to overcome the deficiencies of the related products in the prior art, the present invention provides a blade protection structure, which solves the problem that the protection effect of the existing protection device is not comprehensive. At the same time, the present invention also provides an unmanned aerial vehicle using the blade protection structure.

The invention provides a blade protection structure applied to an unmanned aerial vehicle, comprising:

a first frame member and a support member;

The first frame member includes a surrounding frame and a top frame, the top frame is coupled to a top of the surrounding frame, and the support member is coupled to the top frame;

The surrounding frame is configured to be coupled to a protective cover of a blade of the UAV, and the receiving space formed by the first frame member is for receiving the paddle;

The support member is for avoiding contact of the top frame with the paddle.

In certain embodiments, the blade protection structure includes the protective cover, the protective cover being integrally formed with the first frame member.

In some embodiments, the inner side of the surrounding frame is provided with a mounting portion for the connection of the surrounding frame to the protective cover.

In some embodiments, the mounting portion is a card slot structure.

In some embodiments, the support member is disposed at a bottom of the top frame, and the support member abuts against a center body of the UAV

In some embodiments, the support member is disposed at a bottom of the top frame, the support member being suspended above a center body of the UAV.

In some embodiments, the blade protection structure further includes a bracket component distributed at both ends of the support component, one end of the bracket component being coupled to the support component or the top frame, The other end is connected to the surrounding frame.

In some embodiments, the bracket component cooperates with the first frame component to form a plurality of receiving cavities, the receiving cavity being a first closed loop structure connected end to end, the receiving cavity for isolating the protective cover.

In some embodiments, one end of the bracket member near the support member or the top frame is a bent structure, and the opening of the bent structure is upward;

An end of the bending structure away from the support member is coupled to a bottom of the surrounding frame.

In some embodiments, the first frame member and the support member are integrally formed one piece, or the first frame member, the support member, and the bracket member are integrally formed one piece.

In certain embodiments, the surrounding frame is a second closed loop structure that is connected end to end.

In some embodiments, the inner peripheral dimension of the upper end surface of the surrounding frame is smaller than the inner peripheral dimension of the lower end surface.

In some embodiments, the surrounding frame includes a plurality of hoods, and a plurality of the hoods are secured by a joint.

In some embodiments, an inner side of the cover chamber is for receiving the blade, an outer edge of the cover chamber is curved, and an inner side of the cover chamber and an edge of a plane of rotation of the blade There is a avoidance gap between them.

In some embodiments, the connecting portion includes a first connecting member having a thickness greater than a thickness of the cover chamber and a second connecting member having a height lower than a height of the cover chamber;

The first connecting member is configured to connect an adjacent hood that is parallel to a direction of a center body of the UAV;

The second connector is for connecting an adjacent hood perpendicular to the direction of the center body.

In some embodiments, the top frame is disposed in parallel with the direction of the center body of the UAV, and the top frame is provided with a predetermined slot.

The present invention also provides an unmanned aerial vehicle comprising a center body, a machine arm coupled to the center body, and a blade coupled to the arm, the unmanned aerial vehicle further comprising any one of the above Blade protection structure.

Compared with the prior art, the present invention has the following advantages:

The blade protection structure includes a first frame member including a surrounding frame and a top frame, and a top frame coupled to the top of the surrounding frame, the support member being coupled to the top frame. Wherein, the surrounding frame is used for connecting with the protective cover of the blade of the UAV, so that the connection between the blade protection structure and the UAV can be realized, and at the same time, the first frame member is disposed outside the blade, and is formed to be capable of receiving The storage space of the blade is provided, so that the blade can be fully enclosed in the horizontal direction, that is, 360 degree comprehensive protection around the blade, effectively avoiding the blade in the rotation plane away from the center of the UAV The outer edge of the body directly contacts the damage caused by the user, and the damage probability of the blade is also reduced, and the first frame member is provided with the surrounding frame only on the periphery of the blade and the top frame above the fuselage, and the top portion The complex network structure is not formed between the frame and the surrounding frame, so that it can be protected without increasing the weight; further, the top frame can be formed on the top of the blade by connecting to the top of the surrounding frame. Protection to prevent the safety of the UAV in the event of a blade such as a rollover, while the top frame can be a surrounding frame The structural stability provides a certain support to strengthen the structural strength of the blade protection structure, and the top frame can also be conveniently accessed when the user installs or removes the blade protection structure from the unmanned aerial vehicle; The support member is coupled to the top frame and can be used to avoid damage to the blade caused by direct contact between the top frame and the blade due to the overall height drop of the blade protection structure under the influence of external factors.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic structural view of a blade protection structure according to an embodiment of the present invention;

2 is a schematic view showing the installation of a blade protection structure and an unmanned aerial vehicle according to an embodiment of the present invention;

3 is a schematic view showing the installation of the blade protection structure and the unmanned aerial vehicle in another direction according to an embodiment of the present invention.

Description of the reference signs:

1. The first frame member;

11. The surrounding frame;

111, a hood;

112, a connection portion;

1121, a first connector;

1122, a second connector;

12, the top frame;

120, slot;

2. Supporting parts;

3. Protective cover;

4, the bracket components;

5, the blade.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments, and the preferred embodiments of the invention are shown in the drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Instead, the embodiments are provided to provide a more thorough understanding of the present disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The terms "comprising" and "comprising" and variations of the invention are intended to be in the meaning

References to "an embodiment" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention. The appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.

The blade protection structure according to the embodiment of the present invention is applied to an unmanned aerial vehicle for comprehensively protecting the blades of the unmanned aerial vehicle. The unmanned aerial vehicle described in this embodiment is a multi-rotor unmanned aerial vehicle, of course, In other embodiments, the unmanned aerial vehicle may also be a single-rotor aircraft or a fixed-wing aircraft with a propeller, and the blade protection structure may be adapted according to the actual number or structure of the unmanned aircraft. Match to fully and effectively protect the blades.

1 is a schematic structural view of a blade protection structure according to an embodiment of the present invention, and FIG. 2 is a schematic view showing the installation of a blade protection structure and an unmanned aerial vehicle according to an embodiment of the present invention, respectively, as shown in FIG. 1 and FIG. The protective structure comprises a first frame part 1 comprising a surrounding frame 11 and a top frame 12, and a top frame 12 connected to the top of the surrounding frame 11, the support part 2 being connected to the top frame 12, the surrounding frame 11 For connection to the protective cover 3 of the blade 5 of the unmanned aerial vehicle, the first frame part 1 forms an accommodation space for accommodating the paddle 5, and the support part 2 serves to avoid contact of the top frame 12 with the paddle 5.

The protective cover 3 can be disposed on the unmanned aerial vehicle such as the arm, and is located below the blade 5, specifically, a fan-shaped structure connected to the end of the arm 2 away from the fuselage and extending away from the ground. The protective cover 3 can be A certain protective effect is provided below the blade 5, and the surrounding frame 11 is connected with the protective cover 3 of the blade 5 of the UAV so that the blade protection structure as a whole can be fixed on the unmanned aerial vehicle, wherein the first frame member 1 It is disposed outside the blade 5 and forms an accommodation space for accommodating the blade 5, so that the blade 5 is fully enclosed in the horizontal direction, that is, 360 degree comprehensive protection is provided around the blade, which is effective It avoids the direct contact of the blade 5 to the user and can reduce the damage probability of the blade. Specifically, the propeller to which the blade belongs may include a plurality of propellers distributed in a radial form around the fuselage, that is, a plurality of propellers are disposed at an outer edge of the casing of the fuselage. For example, the quadrotor UAV shown in the figure includes four propellers that are symmetrically disposed with respect to the transverse axis and the longitudinal axis of the drone, and each of the propellers may be provided with a corresponding one of the protective covers 3. It can be understood that in other embodiments, the protective cover 3 can be one (protecting all the propellers) or the number of the propellers, and the structure of the protective cover 3 is not limited to the sector structure.

By attaching the top frame 12 to the top of the surrounding frame 11, a certain degree of protection can be formed above the blade 5 to prevent the safety problem caused by the blade when the UAV occurs, such as a rollover, due to the weight of the surrounding frame 11 for weight reduction, The strength is generally weak, the top frame 12 can provide some support for the structural stability of the surrounding frame 11 to enhance the structural strength of the blade protection structure, and the top frame 12 can also be installed or removed from the unmanned aerial vehicle by the user. When the structure is protected, it is convenient to pick and place it, and the user is prevented from directly squeezing the surrounding frame 11 to damage the blade 5 near the surrounding frame 11. At the same time, as shown in the figure, a complicated network structure may not be formed between the top frame 12 and the surrounding frame 11, and the whole protection is mainly formed around the blade 5, and the upper part of the body body is slightly protected, so that it can be protected at the same time. Adding more weight is beneficial to the life of the UAV aircraft. Of course, under the choice of lightweight materials, a complex network structure can also be formed between the top frame 12 and the surrounding frame 11 to strengthen the blade under weight restrictions. Protection of the structure.

Further, the support member 2 is coupled to the top frame 12 and can be used to avoid direct contact of the top frame 12 with the blade 5 due to the overall height drop of the blade protection structure under the influence of external factors, thereby damaging the blade 5. It can be understood that based on the structural or functional design of the support member 2 and the top frame 12, the connection position of the support member 2 and the top frame 12 can be adjusted accordingly.

The number of the top frame 12 and the supporting member 2 may be one or more, and the plurality of top frames 12 may be symmetrically or asymmetrically disposed, and the plurality of supporting members 2 may also be symmetrically or asymmetrically disposed.

Based on the above structure, it can be understood that in an unmanned aerial vehicle application, the blade protection structure may be one, that is, all the propellers in the UAV are enclosed on the inner side of the surrounding frame 11 of the blade protection structure, and the blade protection The number of structures may be multiple, and the number of blade protection structures may be the same as the number of propellers or less than the number of propellers. For example, in the quadrotor UAV shown in the figure, the longitudinal axis of the UAV is symmetrical. The two propellers on the left side and the two propellers on the right side can each be provided with a blade protection structure.

Since the structure of the unmanned aerial vehicle is actually produced, depending on its use, it may have more types of different specifications. In order to increase the endurance effect, some unmanned aerial vehicles will remove unnecessary mounting components, for example, the above protective cover 3 Therefore, in the case where the UAV itself does not have the protective cover 3 or the user does not purchase the protective cover 3, in order to securely attach the blade protection structure of the present invention to the unmanned aerial vehicle, the blade protection structure also includes protection. The cover 3, the protective cover 3 is specifically connected to the arm of the UAV, for example, the arm is away from the end of the fuselage, and the protective cover 3 is located below the blade 5 for protecting the bottom of the blade 5 to a certain extent. In order to avoid damage to the UAV body or the user when the blade 5 falls off or slips under the influence of external factors, the collision of the blade 5 with the physical structure can be effectively avoided.

In some embodiments of the embodiments of the present invention, the protective cover 3 and the surrounding frame 11 may be an integrally formed one piece, such as in-mold injection molding, which can simplify the steps of structural assembly in the production process by integral molding, and improve production processing. The material of the surrounding frame 11 and the protective cover 3 may be different in the embodiment of the present invention. For example, the protective cover 3 may be different in the embodiment of the present invention. It may be made of plastic material to strengthen the supporting strength, and the surrounding frame 11 may be a foaming material to reduce the weight of the blade protection structure; of course, it should be noted that when the protective cover 3 and the surrounding frame 11 are relatively independent components The present invention is not limited to the manner of connecting the protective cover 3 to the first frame member 1. In other embodiments of the present invention, the protective cover 3 can also be detachably mounted to the first frame by snapping, bonding, or the like. In the component 1, the assembly method can facilitate the user to disassemble and store the blade protection structure, and can meet different flight requirements of the user, for example, With hands or when the public can fly the flight blade guard structure, and skilled or clearing blade can be removed when the protective structure, the protective cover 3 with only the flight.

When the protective cover 3 and the surrounding frame 11 are relatively independent components, in order to enhance the connection stability of the protective cover 3 and the first frame member 1, the inner side of the surrounding frame 11 may be provided with a mounting portion for the surrounding frame 11 and The connection of the protective cover 3, in the embodiment of the invention, the mounting portion may be a card slot structure. Specifically, one end of the protective cover 3 extending away from the ground direction may be a fan-shaped structure, and the curved edge of the sector structure may be fixed on the surrounding frame 11 through the card slot structure, and the other end is connected to the arm of the UAV due to The function of the mounting portion enhances the connection stability of the blade protection structure on the unmanned aerial vehicle, and the blade protection structure does not easily fall off from the inner side of the card slot of the surrounding frame 11 even when the protective cover 3 is subjected to an external impact. It can be understood that in some other embodiments, the mounting portion may also be other structures. For example, the mounting portion may be a slot structure, and both ends of the curved edge of the protective cover 3 may be placed in the slot structure so that the surrounding frame 11 and the protective cover 3 is stably connected.

In order to reduce the weight burden of the blade protection structure on the unmanned aerial vehicle, in the embodiment of the present invention, the material used for the blade protection structure is a foaming material such as EPP (polypropylene) or EPE (expandable polyethylene). Of course, the material of the blade protection structure is not limited in the embodiment of the present invention. In some possible implementations, the material of the blade protection structure may be other plastic parts or lightweight metal parts, alloy parts, and the like. In order to further reduce the weight burden of the blade protection structure on the UAV, the embodiment of the present invention can also process various slot structures on the blade protection structure according to actual needs, and the slot structure is evenly distributed, on the one hand, the weight is reduced. The use of materials reduces the cost and on the other hand reduces the overall weight of the blade protection structure. At the same time, the slot structure can also enhance the flow of the airflow during the flight of the UAV and reduce the air resistance of the blade protection structure.

The top frame 12 is disposed in parallel with the direction of the central body of the unmanned aerial vehicle, on the one hand, the blade protection structure can be balanced, and on the other hand, the aesthetic effect can be improved; FIG. 3 is the blade protection structure of the present invention and the other direction of the unmanned aerial vehicle. As shown in FIG. 3, in order to further enhance the aesthetic effect of the top frame 12, the top frame 12 is provided with a predetermined slot 120. In the embodiment of the present invention, the preset slot 120 is symmetrically disposed. The two through holes, of course, in other embodiments of the present invention, the slots 120 can be customized according to the actual needs of the user or processed according to the sample batch, through different depths, shapes of the slot structure and different positions and sizes of the holes. The combination of structures forms a predetermined pattern to satisfy different preferences. At the same time, the presence of the slot 120 also reduces the weight of the top frame 12, reducing the weight burden on the unmanned aerial vehicle.

It can be understood that the top frame 12 can be disposed perpendicular to the direction of the center body of the UAV or other than the direction of the center body of the UAV, in addition to being disposed in parallel with the direction of the center body of the UAV as shown in the drawing. Angle design, not specifically limited here.

The support member 2 is used to support the height of the top frame 12 relative to the unmanned aerial vehicle, and the top frame 12 is prevented from contacting the blade 5. Since the unmanned aerial vehicle is in actual flight, the flight environment is very complicated, when an emergency situation occurs, When colliding with an obstacle, the protective cover 3 may slip off the UAV arm and the height of the top frame 12 is lowered, at which time the top frame 12 is in contact with the high speed rotating blade 5, thereby facing the top frame 12 and the blade Both of them cause damage. Therefore, the embodiment of the present invention can prevent the top frame 12 from directly contacting the blade 5 under the influence of external factors by providing the support member 2 on the top frame 12, thereby enhancing the safety of the blade protection structure.

It can be understood that in the embodiment of the present invention, the support member 2 can be a relatively independent component of the top frame 12 or a part of the top frame 12. When being a part of the top frame 12, the support member 2 may be integrally formed therewith, or may be a plurality of top frames 12 (as shown in FIG. 2, the top frame 12 may be divided into two top frames having through holes and The intermediate connecting member of the supporting member (such as one end of the top frame 12 may be connected to the supporting member 2 and the other end may be connected to the surrounding frame 11) is integrated therewith, that is, in appearance, after the plurality of top frames 12 are connected The overall surface is relatively flat. Of course, when the support member 2 is used as the intermediate connector of the plurality of top frames 12, the support member 2 can have other structural designs and can cooperate with the top frame 12 to have different shapes, for example, support members. The two symmetrically disposed top frames of the two connections may be respectively a downwardly bent structure, which is not specifically limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the support member 2 may be disposed at the bottom of the top frame 12, and the support member 2 may be abutted on the central body of the UAV (the main body portion of the body), when the top frame 12 has a height In the case of the lowering, the height of the top frame 12 can be supported by the abutting action of the support member 2, effectively avoiding the direct contact of the top frame 12 with the blade 5, and of course, in some embodiments, in order to reduce the weight of the support member 2, The length or thickness of the support member 2 can be shortened, and the support member 2 can be suspended above the center body of the UAV. When the height of the top frame 12 is lowered, the support member 2 is lowered and the lower end thereof is held against the unmanned person. The center of the aircraft is such that the height of the top frame 12 can be supported by the abutment of the support member 2, effectively preventing the top frame 12 from coming into direct contact with the blades 5. It should be noted that when the structure of the top frame 12 is changed due to actual processing requirements, the support member 2 may be attached to other positions of the top frame 12, and is not limited to being attached to the bottom of the top frame 12.

Further, a buffer portion may be disposed on the lower end of the support member 2 in contact with the UAV. When the support member 2 is a non-soft material, the buffer portion may be used to prevent the UAV from being in hard contact with the UAV. The damage caused by the body, especially in the case where the support member 2 is suspended above the UAV, if the support member 2 is directly lowered to the surface of the UAV, it is extremely easy to cause damage to the UAV body, and the buffer portion can be effectively reduced. The impact force of the support member 2 in the hard contact with the UAV is effective to protect the safety of the UAV. In the embodiment of the present invention, the buffer portion may be an elastic member such as a spring or a rubber, as long as the support member 2 can be reduced. The impact force when the human aircraft is in hard contact can be used, and the present invention is not limited thereto.

The blade protection structure further includes one or more bracket members 4, and the plurality of bracket members 4 are respectively distributed at both ends of the support member 2. In the embodiment of the present invention, the number of the bracket members 4 is two, and the two of the support members 2 A bracket member 4 is disposed on one side of the end. Of course, the number of the bracket members 4 is related to the first frame structure. When the first frame structure has a different structure, the number of the bracket members 4 may be other numbers, such as four or eight. And so on. One end of the bracket member 4 is connected to the support member 2 or the top frame 12, and the other end is connected to the surrounding frame 11. The bracket member 4 cooperates with the first frame member 1 to form a plurality of receiving chambers, and the plurality of receiving chambers are first closed loops connected end to end. a structure in which one end of the bracket member 4 near the support member 2 or the top frame 12 is a bent structure, the opening of the bent structure is upward, and one end of the bent structure away from the support member 2 is connected to the bottom of the surrounding frame 11, and the end is located The plane can protrude from the lower end surface of the surrounding frame 11, by which the relief space can be provided for the rotary motion of the blade 5, and the formed receiving cavity can isolate the protective cover 3, and is also advantageous for holding the blade protection structure. Unmanned aerial vehicles and avoid contact with the blades from below. Wherein, the number of accommodating cavities can be matched with the number of propellers, that is, the protective cover 3 to which one propeller is connected in each accommodating cavity. Of course, based on other designs of the bracket member 4, the number of accommodating cavities can also be different from the number of propellers. Match.

In some embodiments, both ends of the bracket member 4 may be bent so that the bracket member 4 is a U-shaped structure in which the bracket member 4 is bent near one end or both ends of the support member 2 or the top frame 12. In the structure, the opening of the bending structure may also be downward and disposed at the top of the surrounding frame 11 to increase the density of the protective structure above the blade 5. The position, shape and size of the bracket member 4 may be according to actual needs and appearance. The beautification requires a corresponding design. At the same time, the plane at which the bracket member 4 is connected to the surrounding frame 11 may be flush with the lower end surface of the surrounding frame 11, which is not specifically limited herein.

Depending on the processing technology, the bracket member 4 may be a separately provided component or a part of the support member 2, that is, one end of the bracket member 4 is connected to the surrounding frame 11, and the other end may be connected to the support member 2 as long as it can pass through the bracket member. 4 cooperates with the first frame member 1 to form a plurality of receiving chambers, and the present invention does not limit the manner in which the bracket members 4 are connected.

It should be noted that, in some embodiments of the present invention, in order to simplify the steps of structural assembly in the production process, improve the efficiency of the production process, and the consistency of the product, the first frame member 1 and the support member 2 may be integrally formed. The one piece, or the first frame part 1, the support part 2 and the bracket part 4 may be an integrally formed one piece.

The surrounding frame 11 is a second closed-loop structure connected end to end. Especially when a blade protection structure is applied to an unmanned aerial vehicle, the second closed-loop structure can surround all the propellers of the UAV, which is advantageous for the integrated design and reduces A repeating step of installing the blade protection structure, wherein an inner circumference dimension of the upper end surface of the surrounding frame 11 is smaller than an inner circumference dimension of the lower end surface to enhance the protection capability of the blade protection structure, while the upper end surface of the surrounding frame 11 is formed with respect to other portions Inwardly extending chamfer, which can provide a certain protection capability for the blade 5 accommodated on the inner side thereof in the vertical direction, and also avoids the corner of the blade protection structure being too sharp, in the flight of the unmanned aerial vehicle Scratching the user or surrounding pedestrians during the process.

As shown in FIG. 1, in the embodiment of the present invention, the surrounding frame 11 may include a plurality of hoods 111, and the plurality of hoods 111 are fixed by the connecting portion 112, and the inner side of the hood 111 is for accommodating the blades 5, the cover The outer edge of the chamber 111 is curved, and there is a avoidance gap between the edge of the plane of rotation of the blade 5 and the inner side of the cover chamber 111, and the paddle 5 is normally rotated inside the cover chamber 111 due to the cover chamber 111 and the joint portion 112 is connected to form a second closed-loop structure forming an end-to-end connection, and the cover chamber 111 forms a 360° full-closed protection to the blade 5 in the horizontal direction by being disposed outside the blade 5, wherein the edge of the rotation plane of the blade 5 is covered with a cover The avoidance gap between the inner sides of the chambers 111 keeps the blades 5 from contacting and touching the cover chamber 111 during the rotational movement. The number and position distribution of the hoods 111 are matched with the number and position distribution of the propellers of the UAV. For example, in the embodiment of the present invention, the number of propellers of the UAV is four, and is evenly distributed in four. In the corners, correspondingly, the cover chambers 111 in the embodiment of the present invention are also four, and the positions of the cover chambers 111 respectively correspond to the positions of the four propellers. Of course, for the unmanned aerial vehicles of different propeller numbers, the unmanned aerial vehicles can be set. The number and position of the hoods 111 are matched to different sizes of unmanned aerial vehicles, and have better adaptability.

It can be understood that the shape of the cover chamber 111 and the formation of the surrounding frame 11 formed by the cover chamber 111 and the connecting portion 112 are in addition to the above description, and may be other shapes in practical applications, such as a square with a chamfered design. This embodiment of the present invention does not specifically limit this.

The connecting portion 112 may include a first connecting member 1121 having a thickness greater than a thickness of the cover chamber 111 and a second connecting member 1122 having a height lower than a height of the cover chamber 111, wherein the first connecting member 1121 is for connecting to a center body of the UAV The adjacent hoods 111 in parallel directions can strengthen the connection strength between the two adjacent hoods 111, and the second connecting member 1122 is used to connect the adjacent hoods 111 perpendicular to the direction of the central body of the UAV, and The two connecting members 1122 and the two adjacent hoods 111 form a avoidance notch, which can facilitate the user to pick up and release the blade protection structure from the unmanned aerial vehicle; of course, in the present invention In some embodiments, the connecting portion 112 may also be a single first connecting member 1121 or a second connecting member 1122, and is not limited to the manner in which the first connecting member 1121 and the second connecting member 1122 are simultaneously disposed, and may be according to an unmanned aerial vehicle. The actual structure is selected. At the same time, the structure, thickness and height of the first connecting member 1121 or the second connecting member 1122 can be set according to actual needs, and the present invention is not limited thereto.

It should be noted that, in the embodiment of the present invention, the plurality of the cover chambers 111 and the connecting portion 112 may be an integrally formed one piece, which is suitable for a scene in which the structural assembly steps need to be simplified, the efficiency of the production process, and the consistency of the products are improved. Of course, in order to improve the adaptability of the blade protection structure, in some embodiments of the present invention, the plurality of the cover chambers 111 and the connecting portion 112 may be combined and assembled in a detachable manner by means of snapping, bonding, or the like. Corresponding to different specifications of the UAV, only need to adjust the different number, the arc angle of the hood 111 and the connecting portion 112, after the combined installation can be adaptively matched to different specifications of the UAV, with better Adaptability.

Based on the above embodiment, while the top frame 12 and the protective cover 3 provide a certain protection capability above and below the paddle 5, respectively, the blade protection structure may further include a second cover above and below the paddle 5, respectively. The frame structure (not shown) is detachably mounted on the first frame structure, and the second frame structure is, for example, a mesh structure, which has a small weight burden and can be intercepted without affecting the flight power of the unmanned aerial vehicle. Some external objects interfere with the blade 5 from above or below, avoiding damage to the user when the blade 5 is detached from above or below the blade protection structure, wherein the second frame structure located below the blade 5 is correspondingly useful. The through hole structure through which the UAV body passes; of course, in some embodiments, the second frame structure may also be a one-piece and integrally formed one piece with the first frame structure, and is not limited to the detachable mounting manner. The present invention is not limited as long as the corresponding functions can be achieved.

In the embodiment of the present invention, the overall structure of the blade protection structure is made of a light foaming material, etc., the weight burden is small, the structure is simple, and the processing difficulty is low, and the plurality of hoods 111 are matched to the unmanned aerial vehicle. All of the blades 5 are fully enclosed in the horizontal direction while supporting the height of the top frame 12 relative to the unmanned aerial vehicle by the support member 2, avoiding the contact of the top frame 12 with the blades 5, improving the operation of the blades 5 The safety in the process not only affects the endurance of the UAV, but also has better protection performance for the blade 5, and the production cost is also relatively low, which can meet the needs of ordinary users and has a better market prospect.

On the basis of the above embodiments, the present invention further provides an unmanned aerial vehicle comprising a center body, an arm connected to the center body, and a blade 5 connected to the arm, the unmanned aerial vehicle further comprising any of the above embodiments The blade protection structure, wherein the blade protection structure is fixedly coupled to the arm for fully enclosing protection of the blade 5 in the horizontal direction, and at the same time, can be provided above and below the blade 5 Corresponding protection.

The unmanned aerial vehicle has the corresponding structure, function and beneficial effects of the blade protection structure in the above embodiment. For details, please refer to the embodiment of the blade protection structure, which is not described herein again.

In the above embodiments provided by the present invention, it should be understood that the modules or components described as separate components may or may not be physically separated, may be located in one place, or may be distributed to multiple locations. on. Some or all of them may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above is only the embodiment of the present invention, but does not limit the scope of the patent of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still The technical solutions described in the manner are modified, or some of the technical features are equivalently replaced. The equivalent structures made by using the description of the present invention and the contents of the drawings are directly or indirectly applied to other related technical fields, and are equally within the scope of the patent protection of the present invention.

Claims

A blade protection structure is applied to an unmanned aerial vehicle, characterized in that the blade protection structure comprises:

a first frame member and a support member;

The first frame member includes a surrounding frame and a top frame, the top frame is coupled to a top of the surrounding frame, and the support member is coupled to the top frame;

The surrounding frame is configured to be coupled to a protective cover of a blade of the UAV, and the receiving space formed by the first frame member is for receiving the paddle;

The support member is for avoiding contact of the top frame with the paddle.
The blade protection structure of claim 1 wherein said blade protection structure comprises said protective cover, said protective cover being integrally formed integrally with said first frame member.
The blade protection structure according to claim 1, wherein an inner side of the surrounding frame is provided with a mounting portion for connection of the surrounding frame to the protective cover.
The blade protection structure according to claim 3, wherein the mounting portion is a card slot structure.
The blade protection structure according to any one of claims 1 to 4, wherein the support member is provided at a bottom of the top frame, and the support member abuts against a center body of the unmanned aerial vehicle on.
The blade protection structure according to any one of claims 1 to 4, wherein the support member is provided at a bottom of the top frame, and the support member is suspended at a center body of the UAV Above.
The blade protection structure according to any one of claims 1 to 4, wherein the blade protection structure further comprises a bracket member, the bracket member being distributed at both ends of the support member, the bracket One end of the component is coupled to the support member or the top frame and the other end is coupled to the surrounding frame.
The blade protection structure according to claim 7, wherein the bracket member cooperates with the first frame member to form a plurality of receiving chambers, and the receiving chamber is a first closed loop structure connected end to end, the receiving A cavity is used to isolate the protective cover.
The blade protection structure according to claim 8, wherein one end of the bracket member adjacent to the support member or the top frame is a bent structure, and an opening of the bent structure is upward;

An end of the bending structure away from the support member is coupled to a bottom of the surrounding frame.
The blade protection structure according to claim 7, wherein the first frame member and the support member are integrally formed one piece, or the first frame member, the support member, and the The bracket component is an integrally formed one piece.
A blade protection structure according to any one of claims 1 to 4, wherein the surrounding frame is a second closed loop structure connected end to end.
The paddle protection structure according to claim 11, wherein an inner peripheral dimension of the upper end surface of the peripheral frame is smaller than an inner peripheral dimension of the lower end surface.
The blade protection structure according to claim 11, wherein said peripheral frame includes a plurality of cover chambers, and said plurality of said cover chambers are fixed by a joint portion.
The blade protection structure according to claim 13, wherein an inner side of the cover chamber is for accommodating the paddle, an outer edge of the cover chamber is curved, and an inner side of the cover chamber is A relief gap is provided between the edges of the plane of rotation of the blade.
The blade protection structure according to claim 13, wherein the connecting portion comprises a first connecting member having a thickness greater than a thickness of the cover chamber and a second connecting member having a height lower than a height of the cover chamber;

The first connecting member is configured to connect an adjacent hood that is parallel to a direction of a center body of the UAV;

The second connector is for connecting an adjacent hood perpendicular to the direction of the center body.
The blade protection structure according to any one of claims 1 to 4, wherein the top frame is disposed in parallel with a direction of a center body of the UAV, and the top frame is provided with a preset Slot.
An unmanned aerial vehicle comprising a center body, an arm coupled to the center body, and a blade coupled to the arm, wherein the unmanned aerial vehicle further includes a blade protection structure, the blade The protection structure includes:

a first frame member and a support member;

The first frame member includes a surrounding frame and a top frame, the top frame is coupled to a top of the surrounding frame, and the support member is coupled to the top frame;

The surrounding frame is configured to be coupled to a protective cover of a blade of the UAV, and the receiving space formed by the first frame member is for receiving the paddle;

The support member is for avoiding contact of the top frame with the paddle.
The UAV according to claim 17, wherein said blade protection structure comprises said protective cover, said protective cover being integrally formed integrally with said first frame member.
The UAV according to claim 17, wherein an inner side of the surrounding frame is provided with a mounting portion for connection of the surrounding frame to the protective cover.
The UAV according to claim 19, wherein the mounting portion is a card slot structure.
The UAV according to any one of claims 17 to 20, wherein the support member is provided at a bottom of the top frame, and the support member abuts against a center body of the UAV .
The UAV according to any one of claims 17 to 20, wherein the support member is provided at a bottom of the top frame, and the support member is suspended above a center body of the UAV .
The UAV according to any one of claims 17 to 20, wherein the blade protection structure further comprises a bracket member, the bracket member being distributed at both ends of the support member, the bracket member One end is connected to the support member or the top frame, and the other end is connected to the surrounding frame.
The UAV according to claim 23, wherein the bracket member cooperates with the first frame member to form a plurality of receiving chambers, and the receiving chamber is a first closed loop structure connected end to end, the receiving chamber Used to isolate the protective cover.
The UAV according to claim 24, wherein one end of the bracket member adjacent to the support member or the top frame is a bent structure, and an opening of the bent structure is upward;

An end of the bending structure away from the support member is coupled to a bottom of the surrounding frame.
The UAV according to claim 23, wherein said first frame member and said support member are integrally formed one piece, or said first frame member, said support member and said bracket The parts are a one-piece piece.
The UAV according to any one of claims 17 to 20, wherein the surrounding frame is a second closed loop structure connected end to end.
The UAV according to claim 27, wherein an inner peripheral dimension of the upper end surface of the peripheral frame is smaller than an inner peripheral dimension of the lower end surface.
The UAV according to claim 27, wherein said surrounding frame comprises a plurality of hoods, and said plurality of said hoods are fixed by a connecting portion.
The UAV according to claim 29, wherein an inner side of the cover chamber is for accommodating the paddle, an outer edge of the cover chamber is curved, and an inner side of the cover chamber is A relief gap is provided between the edges of the plane of rotation of the blade.
The UAV according to claim 29, wherein said connecting portion comprises a first connecting member having a thickness greater than a thickness of said cover chamber and a second connecting member having a height lower than a height of said cover chamber;

The first connecting member is configured to connect an adjacent hood that is parallel to a direction of a center body of the UAV;

The second connector is for connecting an adjacent hood perpendicular to the direction of the center body.
The UAV according to any one of claims 17 to 20, wherein the top frame is disposed in parallel with a direction of a center body of the UAV, and the top frame is provided with a predetermined slot. hole.