阅读说明：本技术 连接结构和无人机 (Connection structure and unmanned aerial vehicle ) 是由 张卉梓 于 2019-10-11 设计创作，主要内容包括：本发明实施例提供了一种连接结构和无人机,涉及无人机领域,该连接结构用于连接无人机的机体和机翼,机翼沿预设方向安装到机体上,该连接结构包括连接件和用于固定设置在机体上的安装件,连接件包括第一限位部,安装件设置有安装孔。连接件用于与机翼转动配合,以在第一状态和第二状态之间切换。在第一状态下,第一限位部能够沿预设方向或沿与预设方向相反的方向穿过安装孔,机翼与机体可拆卸。在第二状态下,第一限位部沿预设方向穿过安装孔且被安装件在沿与预设方向相反的方向止位,机翼与机体相对固定。该连接结构用于连接机体和机翼时,安装和拆卸方便。(The embodiment of the invention provides a connecting structure and an unmanned aerial vehicle, and relates to the field of unmanned aerial vehicles. The link is adapted to be in rotatable engagement with the wing to switch between a first state and a second state. Under the first state, the first limiting part can penetrate through the mounting hole along the preset direction or along the direction opposite to the preset direction, and the wing and the machine body can be detached. In the second state, the first limiting part penetrates through the mounting hole along the preset direction and is stopped by the mounting part along the direction opposite to the preset direction, and the wing and the machine body are fixed relatively. When the connecting structure is used for connecting the engine body and the wings, the connecting structure is convenient to install and disassemble.)

1. A connecting structure is used for connecting an unmanned aerial vehicle body and wings, and the wings are installed on the unmanned aerial vehicle body along a preset direction;

the connecting piece is used for being in rotating fit with the wing so as to switch between a first state and a second state; in the first state, the first limiting part can penetrate through the mounting hole along the preset direction or along the direction opposite to the preset direction, and the wing and the machine body can be detached; in the second state, the first limiting part penetrates through the mounting hole along the preset direction and is stopped by the mounting part along the direction opposite to the preset direction, and the wing and the machine body are relatively fixed.

2. The connecting structure of claim 1, wherein the connecting member further comprises a connecting shaft, the connecting shaft is used for being in running fit with the wing, one end of the connecting shaft is connected with the first limiting portion, and the connecting shaft is used for driving the first limiting portion to penetrate through the mounting hole.

3. The connecting structure according to claim 2, wherein the connecting shaft is configured to be rotatably connected to the wing about an axis of the connecting shaft, the number of the first limiting portions is two, and the two first limiting portions are symmetrically arranged about the axis of the connecting shaft.

4. The connecting structure according to claim 2, wherein the connecting member further comprises a second limiting portion and a third limiting portion which are arranged on the connecting shaft at intervals, the second limiting portion is located between the first limiting portion and the third limiting portion, and the second limiting portion and the third limiting portion are used for respectively abutting against two opposite end faces of the wing so that the connecting member is relatively fixed with the wing.

5. The connecting structure according to claim 4, wherein a clamping groove is formed in the connecting shaft, and the second limiting portion is a clamping ring embedded in the clamping groove.

6. The connecting structure of claim 4, wherein the connecting member further comprises a gasket and an elastic sheet, the gasket and the elastic sheet are both sleeved on the connecting shaft, one side of the gasket is abutted against the third limiting part, one side of the gasket, which is far away from the third limiting part, is abutted against the elastic sheet, and one side of the elastic sheet, which is far away from the gasket, is used for being abutted against the end face of the wing.

7. The connecting structure according to claim 4, wherein the connecting member further comprises a pull ring connected to the third stopper portion.

8. The connecting structure according to any one of claims 1 to 7, wherein the mounting member is a U-shaped structure, both ends of the mounting member are used for being fixed to the machine body, and the mounting hole is formed in the middle of the mounting member.

9. An unmanned aerial vehicle, characterized in that, includes organism, wing and the connection structure of any one of claims 1-8, the installed part with organism fixed connection, be provided with first connecting hole on the wing, first spacing portion is used for passing simultaneously first connecting hole with the mounting hole.

10. The unmanned aerial vehicle of claim 9, wherein the body has a cavity, the body is provided with a second connecting hole communicated with the cavity, the mounting member is located in the cavity, the wing is attached to the body, and the first limiting portion is used for sequentially passing through the first connecting hole, the second connecting hole and the mounting hole.

Technical Field

The invention relates to the field of unmanned aerial vehicles, in particular to a connecting structure and an unmanned aerial vehicle.

Background

In the aspect of the design of the existing industrial unmanned aerial vehicle, wings are basically connected with a fuselage through screws or bolts, and when the wings and the fuselage are installed and disassembled, the installation and disassembly processes are time-consuming and labor-consuming.

Disclosure of Invention

The invention aims to provide a connecting structure which is convenient to mount and dismount when used for connecting a machine body and a wing.

The invention also provides an unmanned aerial vehicle, which comprises the connecting structure and has all functions of the connecting structure.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present invention provides a connection structure, which is used for connecting an airframe and a wing of an unmanned aerial vehicle, wherein the wing is installed on the airframe along a preset direction, the connection structure includes a connection piece and an installation piece, the installation piece is used for being fixedly arranged on the airframe, the connection piece includes a first limiting portion, and the installation piece is provided with an installation hole;

the connecting piece is used for being in rotating fit with the wing so as to switch between a first state and a second state; in the first state, the first limiting part can penetrate through the mounting hole along the preset direction or along the direction opposite to the preset direction, and the wing and the machine body can be detached; in the second state, the first limiting part penetrates through the mounting hole along the preset direction and is stopped by the mounting part along the direction opposite to the preset direction, and the wing and the machine body are relatively fixed.

In an optional embodiment, the connecting piece further comprises a connecting shaft, the connecting shaft is used for being in running fit with the wing, one end of the connecting shaft is connected with the first limiting portion, and the connecting shaft is used for driving the first limiting portion to penetrate through the mounting hole.

In an optional embodiment, the connecting shaft is used for being rotatably connected to the wing around an axis of the connecting shaft, the number of the first limiting parts is two, and the two first limiting parts are symmetrically arranged around the axis of the connecting shaft.

In an optional embodiment, the connecting member further includes a second limiting portion and a third limiting portion disposed on the connecting shaft at an interval, the second limiting portion is located between the first limiting portion and the third limiting portion, and the second limiting portion and the third limiting portion are used for respectively abutting against two opposite end surfaces of the wing, so that the connecting member and the wing are relatively fixed.

In an optional embodiment, a clamping groove is formed in the connecting shaft, and the second limiting portion is a clamping ring embedded in the clamping groove.

In an optional implementation manner, the connecting piece further includes a gasket and an elastic sheet, the gasket and the elastic sheet are both sleeved on the connecting shaft, one side of the gasket abuts against the third limiting portion, one side of the gasket, which is far away from the third limiting portion, abuts against the elastic sheet, and one side of the elastic sheet, which is far away from the gasket, is used for abutting against the end face of the wing.

In an alternative embodiment, the connecting member further includes a pull ring connected to the third stopper portion.

In an optional embodiment, the mounting member is a U-shaped structure, two ends of the mounting member are both used for being fixed to the machine body, and the mounting hole is formed in the middle of the mounting member.

In a second aspect, an embodiment of the present invention provides an unmanned aerial vehicle, including a body, a wing, and the connection structure according to any one of the foregoing embodiments, where the mounting member is fixedly connected to the body, the wing is provided with a first connection hole, and the first limiting portion is configured to pass through the first connection hole and the mounting hole at the same time.

In an optional implementation mode, the body is provided with an accommodating cavity, the body is provided with a second connecting hole communicated with the accommodating cavity, the mounting part is located in the accommodating cavity, the wing is attached to the body, and the first limiting part is used for sequentially penetrating the first connecting hole, the second connecting hole and the mounting hole.

The beneficial effects of the embodiment of the invention include, for example:

the embodiment of the invention provides a connecting structure, wherein a connecting piece rotates relative to a wing and can be switched between a first state and a second state, so that the dismounting and the mounting between the wing and a machine body are completed, a first limiting part can directly penetrate through or be separated from a mounting hole, and the dismounting and the mounting processes are more convenient and faster.

The embodiment of the invention also provides the unmanned aerial vehicle which comprises the connecting structure, and the wing and the body of the unmanned aerial vehicle are more convenient and quicker to mount and dismount.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connection structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an airfoil according to an embodiment of the invention;

FIG. 4 is a schematic view of a connection piece and a wing according to an embodiment of the present invention connected at a first view angle;

FIG. 5 is a schematic view of a mounting member positioned within a receiving cavity according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a connection piece and a wing according to an embodiment of the present invention, shown from a second perspective;

fig. 7 is a schematic structural view illustrating a connection of the connection shaft, the first position-limiting portion and the third position-limiting portion according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a mounting member according to an embodiment of the present invention.

Icon: 1-unmanned aerial vehicle; 11-an airfoil; 111-a first connection aperture; 12-body; 121-a second connection hole; 122-a receiving cavity; 13-a linking structure; 131-a connector; 1311-a first stop; 132-a mount; 1321-mounting holes; 133-a connecting shaft; 1331-card slot; 134-a second stop; 135-a third limiting part; 1351-a through hole; 136-a spacer; 137-spring piece; 138-pull ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements 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 invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an unmanned aerial vehicle 1, where the unmanned aerial vehicle 1 includes a body 12, a wing 11, and a connecting structure 13, and the connecting structure 13 is used to relatively fix or disassemble the wing 11 and the body 12. The wings 11 are mounted on the body 12 in a predetermined direction. It should be noted that the preset direction is the direction indicated by the arrow a in fig. 1.

Referring to fig. 2, correspondingly, the present embodiment further provides a connection structure 13, where the connection structure 13 includes a connection member 131 and a mounting member 132 for fixing the connection member on the machine body 12, the connection member 131 includes a first limiting portion 1311, and the mounting member 132 is provided with a mounting hole 1321. The link 131 is adapted to be in rotatable engagement with the wing 11 to switch between the first and second states. In the first state, the first position-limiting portion 1311 can pass through the mounting hole 1321 in the preset direction or in the direction opposite to the preset direction, and the wing 11 and the machine body 12 can be detached, and in the second state, the first position-limiting portion 1311 passes through the mounting hole 1321 in the preset direction and is stopped by the mounting member 132 in the direction opposite to the preset direction, and the wing 11 and the machine body 12 are fixed relatively.

It can be understood that, in the first state, the first position-limiting portion 1311 can pass through the mounting hole 1321 in both the predetermined direction and the direction opposite to the predetermined direction, so that the wing 11 can be separated from the body 12 in the direction opposite to the predetermined direction, and the detachment process is completed. In the second state, since the first position-limiting portion 1311 rotates relative to the wing 11, the first position-limiting portion 1311 that has passed through the mounting hole 1321 is stopped by the mounting member 132, the first position-limiting portion 1311 cannot move in the direction opposite to the preset direction, and meanwhile, since the mounting member 132 is fixedly disposed on the body 12, the wing 11 and the body 12 are relatively fixed, and the wing 11 is mounted on the body 12, thereby completing the mounting process.

It can be understood that, in the embodiment, in the process of rotationally matching the connecting member 131 with the wing 11, the first state and the second state can be switched, so that the detachment and the installation between the wing 11 and the airframe 12 are completed, the first limiting portion 1311 can directly pass through or be separated from the mounting hole 1321, and the installation and the detachment process is more convenient and faster.

Referring to fig. 1, it should be noted that, in the present embodiment, the number of the connecting structures 13 is four, and the four connecting structures 13 are located at four vertices of a rectangle, so as to be beneficial to reducing the occurrence of looseness between the wing 11 and the body 12.

Specifically, referring to fig. 2, the connecting member 131 further includes a connecting shaft 133, the connecting shaft 133 is configured to rotatably fit with the wing 11, one end of the connecting shaft 133 is connected to the first limiting portion 1311, and the connecting shaft 133 is configured to drive the first limiting portion 1311 to pass through the mounting hole 1321.

It can be understood that the worker can operate the connecting shaft 133 to drive the first limiting portion 1311 to pass through the mounting hole 1321 and drive the first limiting portion 1311 to rotate relative to the wing 11, which is convenient for the worker to work.

Referring to fig. 3 and fig. 4, it should be noted that, in the embodiment, the wing 11 is provided with a first connection hole 111, the connection shaft 133 is rotatably disposed in the first connection hole 111, and the connection shaft 133 is used for driving the first position-limiting portion 1311 to simultaneously pass through the first connection hole 111 and the mounting hole 1321. It can be understood that the connection shaft 133 is switched between the first state and the second state during the rotation in the first connection hole 111.

Referring to fig. 5, in the embodiment, the body 12 has an accommodating cavity 122, the body 12 is provided with a second connecting hole 121 communicated with the accommodating cavity 122, the mounting member 132 is located in the accommodating cavity 122, the wing 11 is attached to the body 12, and the first limiting portion 1311 is used for sequentially passing through the first connecting hole 111, the second connecting hole 121 and the mounting hole 1321.

It can be understood that the mounting member 132 is located in the accommodating space, so that the wings 11 and the body 12 can be attached to each other, which is beneficial to improving the aerodynamic performance of the unmanned aerial vehicle 1. Of course, in other embodiments, the mounts 132 may be located between the body 12 and the wing 11.

In this embodiment, during installation, the connecting shaft 133 drives the first position-limiting portion 1311 to sequentially pass through the first connecting hole 111, the second connecting hole 121, and the installation hole 1321. In the detaching process, the connecting shaft 133 drives the first position-limiting portion 1311 to sequentially disengage from the mounting hole 1321, the second connecting hole 121 and the first connecting hole 111.

It should be noted that, in the present embodiment, the first connecting hole 111, the second connecting hole 121, and the mounting hole 1321 are all light holes, so that the connecting shaft 133 and the first limiting portion 1311 can pass through the light holes.

Referring to fig. 2 and 7, in the present embodiment, the connecting shaft 133 is configured to be rotatably connected to the wing 11 around an axis of the connecting shaft 133, the number of the first position-limiting portions 1311 is two, and the two first position-limiting portions 1311 are symmetrically disposed about the axis of the connecting shaft 133.

It can be understood that after the two first limiting portions 1311 pass through the mounting holes 1321, the mounting member 132 has a better stopping function for simultaneously stopping the two first limiting portions 1311.

It should be noted that, in the present embodiment, the two first position-limiting portions 1311 form an anchor-like structure, that is, a shape similar to that of an anchor used for stopping a ship. Thus, the two first limiting parts 1311 can form barbs for abutting against the mounting part 132, so that the mounting part 132 can stop the two first limiting parts 1311, and the probability of looseness between the wing 11 and the machine body 12 is reduced.

It should be noted that, in the present embodiment, the connecting shaft 133 and the two first position-limiting portions 1311 are integrally formed, and both the connecting shaft 133 and the first position-limiting portions 1311 are made of 40Cr material and have white zinc plated on the surface.

Referring to fig. 2, 4 and 6, in the embodiment, the connecting member 131 further includes a second limiting portion 134 and a third limiting portion 135 disposed on the connecting shaft 133 at intervals, the second limiting portion 134 is located between the first limiting portion 1311 and the third limiting portion 135, and the second limiting portion 134 and the third limiting portion 135 are used for respectively abutting against two opposite end surfaces of the wing 11, so that the connecting member 131 and the wing 11 are relatively fixed.

It should be noted that, in the present embodiment, the wing 11 is located between the second limiting portion 134 and the third limiting portion 135, so that the connecting member 131 can be fixed relative to the wing 11. The situation that the connecting piece 131 falls off from the wing 11 after the wing 11 is detached from the body 12 is avoided.

Specifically, referring to fig. 2 and fig. 7, in the present embodiment, a clamping groove 1331 is formed on the connecting shaft 133, and the second limiting portion 134 is a clamping ring embedded in the clamping groove 1331.

It should be noted that, in this embodiment, the snap ring is detachably connected to the connecting shaft 133, and after the connecting shaft 133 passes through the first connecting hole 111, the snap ring is installed, so that the connecting shaft 133 is not easily detached from the first connecting hole 111.

It should be noted that, in this embodiment, an E-type snap spring is selected as the snap ring.

It should be noted that, in the present embodiment, the third position-limiting portion 135 is a cylindrical structure disposed at one end of the connecting shaft 133, and the third position-limiting portion 135 is integrally formed with the connecting shaft 133.

Referring to fig. 2 and 7, in the present embodiment, the connecting member 131 further includes a pull ring 138 connected to the third position-limiting portion 135. It can be understood that the pull ring 138 facilitates a worker to pull the connecting shaft 133 in the first state, so as to drive the first limiting portion 1311 to be separated from the mounting hole 1321 and the second connecting hole 121, thereby facilitating the worker to complete the disassembling operation quickly.

Specifically, in the present embodiment, a through hole 1351 is disposed on a side wall of the third limiting portion 135, and the pull ring 138 is movably disposed in the through hole 1351.

Referring to fig. 2, in the embodiment, the connecting member 131 further includes a spacer 136 and an elastic sheet 137, the spacer 136 and the elastic sheet 137 are both sleeved on the connecting shaft 133, one side of the spacer 136 abuts against the third limiting portion 135, one side of the spacer 136 away from the third limiting portion 135 abuts against the elastic sheet 137, and one side of the elastic sheet 137 away from the spacer 136 is used for abutting against an end surface of the wing 11.

It should be noted that, in the embodiment, the spacer 136 is used to prevent the third position-limiting portion 135 from directly contacting the end surface of the wing 11, so as to reduce the wear of the wing 11 and the third position-limiting portion 135. Specifically, the spacer 136 may be made of nylon or DMD insulating paper material.

It should be noted that the number of the shims 136 may be multiple, and the number of the shims 136 may be increased or decreased, so that the distance between the third limiting portion 135 and the end surface of the wing 11 may be adjusted, and the manufacturing error of the wing 11 and the body 12 may be eliminated. The number of shims 136 may be adjusted by the operator as is practical.

It should be noted that, in the present embodiment, the elastic sheet 137 is used for elastically abutting the third limiting portion 135 against the end surface of the wing 11, so as to adjust the distance between the third limiting portion 135 and the end surface of the wing 11, and eliminate the manufacturing error between the wing 11 and the body 12. Specifically, in this embodiment, the elastic piece 137 is made of a natural-color silica gel material.

Referring to fig. 2 and 8, in the present embodiment, the mounting member 132 is a U-shaped structure, two ends of the mounting member 132 are both used for being fixed to the machine body 12, and the mounting hole 1321 is opened in the middle of the mounting member 132.

Specifically, in the present embodiment, the two ends of the mounting member 132 are fixed to the machine body 12 by bolts.

The U-shaped structure has certain elasticity compared with a flat plate structure, can be normally used even if deformed after being used for a long time, and has long service life. In this embodiment, the mounting member 132 is made of stainless steel and formed by sheet metal.

Referring to fig. 7 and 8, in the present embodiment, the mounting hole 1321 is a strip-shaped hole. In this embodiment, after the connecting shaft 133 drives the first stopper 1311 to pass through the mounting hole 1321, the connecting shaft 133 rotates clockwise or counterclockwise by 90 ° around the axis of the connecting shaft 133, that is, the first state can be switched to the second state, and then rotates counterclockwise or clockwise by 90 ° in the second state, that is, the second state can be switched to the first state. In other embodiments, the angle of rotation may also be 50 °, 100 °, 120 °, etc.

In summary, the working principle of the connection structure 13 provided in this embodiment is as follows:

the worker drives the first limiting portion 1311 to sequentially pass through the spacer 136, the elastic piece 137, the first connecting hole 111 on the wing 11, the second connecting hole 121 on the body 12, and the mounting hole 1321 on the mounting member 132 through the connecting shaft 133, and then the connecting shaft 133 rotates clockwise by 90 degrees around the axis of the connecting shaft 133, and is switched from the first state to the second state, so that the mounting operation between the wing 11 and the body 12 is completed. When the wing 11 needs to be detached from the body 12, the connecting shaft 133 is rotated counterclockwise by 90 ° around the axis of the connecting shaft 133, the second state is switched to the first state, the pull ring 138 is pulled, the first limiting portion 1311 is separated from the mounting hole 1321 and the second connecting hole 121, the wing 11 and the body 12 can be detached, and the detaching operation is completed.

The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.