CN108945391B

CN108945391B - Arm folding assembly and unmanned aerial vehicle

Info

Publication number: CN108945391B
Application number: CN201811110296.7A
Authority: CN
Inventors: 朱秋阳; 梁伟俊; 胡洁
Original assignee: Shenzhen Xiangnong Innovation Technology Co ltd
Current assignee: Shenzhen Xiangnong Innovation Technology Co ltd
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2020-04-03
Anticipated expiration: 2038-09-21
Also published as: CN108945391A

Abstract

An arm folding assembly and an unmanned aerial vehicle relate to the technical field of unmanned aerial vehicles. The horn folding assembly comprises a connecting piece, a fixing sleeve, a horn containing cylinder and a limiting locking piece. The connecting piece includes the connecting piece body, and the one end of connecting piece body extends to the homonymy has to be two flanges that are parallel arrangement, and the other end that the connecting piece body was kept away from to two flanges all is provided with a plurality of limited slip archs. The connecting piece body is movably connected to the outer wall surface of the fixed sleeve. One end of the horn containing cylinder is fixedly sleeved in the fixed sleeve. Spacing locking piece includes the bottom plate and upwards extends from the bottom plate both sides board, and the other end swing joint of a horn holding section of thick bamboo is between the board of both sides, and both sides board all is formed with first breach towards one side that a horn holding section of thick bamboo, and the relative one side of first breach of both sides board all is formed with the second breach. This horn folding assembly has solved unmanned aerial vehicle occupation space among the prior art problem big, inconvenient accomodating.

Description

Arm folding assembly and unmanned aerial vehicle

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to an arm folding assembly and an unmanned aerial vehicle.

Background

The unmanned aircraft is called unmanned aerial vehicle for short, and is also called UAV in English, which is a general name of unmanned aerial vehicles and is an unmanned aircraft operated by radio remote control equipment and a self-contained program control device. Compared with manned aircraft, it has the advantages of small volume, low cost, convenient use, low requirement on the operational environment, strong battlefield viability and the like. Since the unmanned aircraft has important significance for future air battles, the research and development work of the unmanned aircraft is carried out in all major military countries in the world.

Unmanned aerial vehicles typically have a boom structure extending outwardly from the fuselage, with propellers mounted on the boom structure for generating power. Because the horn occupies the space volume ratio great after expanding, in order to guarantee certain intensity requirement, the horn structure often fixes through bolted construction with the fuselage, but the problem that produces from this is, the dismantlement of horn structure need be gone on with the help of external instrument, and the process is loaded down with trivial details moreover, accomplishes whole dismouting process and need consume more time to customer experience has been reduced. In addition, under some specific use scenes, for example, when the unmanned aerial vehicle is not used for a short time and needs to be stored, a user does not want to spend much time to disassemble the horn structure, but wants the horn structure to be folded and stored when the unmanned aerial vehicle is not used, so that the space volume occupied by the unmanned aerial vehicle during storage and transportation is reduced.

It is therefore desirable to design an arm folding assembly that overcomes the above-mentioned problems.

Disclosure of Invention

The invention aims to provide an arm folding assembly and an unmanned aerial vehicle, and aims to solve the problem that the unmanned aerial vehicle in the prior art is inconvenient to store and occupies a large space.

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

in one aspect of an embodiment of the present invention, an arm folding assembly is provided, which includes a connecting member, a fixing sleeve, an arm accommodating cylinder, and a limit locking member.

The connecting piece comprises a connecting piece body, wherein two flanges which are arranged in parallel are arranged at one end of the connecting piece body in a extending mode towards the same side, and a plurality of anti-slip bulges are arranged at the other end, far away from the connecting piece body, of each of the two flanges. The connecting piece body is movably connected to the outer wall surface of the fixed sleeve. One end of the horn containing cylinder is fixedly sleeved in the fixed sleeve. Spacing locking piece includes the bottom plate and certainly the both sides board that the bottom plate both sides upwards extended, the horn holds the other end swing joint of a section of thick bamboo in between the board of both sides, the both sides board orientation one side that the horn held a section of thick bamboo all is formed with first breach, the both sides board is relative one side of first breach all is formed with the second breach. When the horn accommodating cylinder is in a first locking position, the two flanges are clamped in the first notch, the anti-slip bulge is in contact with the first notch in an attaching manner so as to limit and clamp the horn accommodating cylinder and the limiting locking piece, and the horn folding assembly is in a first locking state; when the two flanges are separated from the first notch, the horn accommodating cylinder is rotated to enable the horn accommodating cylinder to rotate to a second locking position relative to the limiting locking piece, the two flanges are clamped in the second notch, the anti-slip protrusions are in fit contact with the second notch, the horn accommodating cylinder is clamped and fixed with the limiting locking piece in a limiting mode, and the horn folding assembly is in a second locking state. This horn folding assembly has solved unmanned aerial vehicle occupation space among the prior art problem big, inconvenient accomodating.

Optionally, in a preferred embodiment of the present invention, the connecting member body is hinged to an outer wall surface of the fixing sleeve, and the other end of the arm accommodating cylinder is hinged between the two side plates.

Further, in a preferred embodiment of the present invention, first mounting holes are formed in both the side plates, a second mounting hole is formed in one end of the horn accommodating cylinder away from the fixing sleeve, and the first mounting hole is connected to the second mounting hole through a first pin.

Further, in a preferred embodiment of the present invention, the bottom plate is provided with at least one third mounting hole, and the fixing member passes through the third mounting hole to fix the limiting and locking member to the rack.

Further, in a preferred embodiment of the present invention, the connecting member body further includes a vertical section, a first supporting leg and a second supporting leg respectively extending from the vertical section to two sides, and a connecting rod having two ends respectively connected to the first supporting leg and the second supporting leg, the first supporting leg and the second supporting leg are disposed at an included angle, and the two flanges are respectively located at one ends of the first supporting leg and the second supporting leg far away from the vertical section.

Further, in a preferred embodiment of the present invention, the fixing sleeve further includes two fixing edges extending outward from the outer side wall of the fixing sleeve and arranged in parallel, the two fixing edges are both provided with a first positioning hole, the vertical section is provided with a second positioning hole, and the first positioning hole is connected to the second positioning hole through a second pin.

Further, in a preferred embodiment of the present invention, a plurality of first screw holes are formed in a side wall of the fixing sleeve, a plurality of second screw holes are formed in a side wall of the horn accommodating cylinder, the first screw holes and the second screw holes are in one-to-one correspondence, and a screw passes through the first screw holes through a screw connector to be fixedly screwed into the second screw holes, so as to connect and fix the fixing sleeve and the horn accommodating cylinder.

Optionally, in a preferred embodiment of the present invention, a groove is formed on a side of the vertical section close to the fixing sleeve.

Optionally, in a preferred embodiment of the present invention, the inner wall of the horn receiving cylinder has a cross-section of a regular polygon.

In another aspect of the embodiment of the invention, an unmanned aerial vehicle is provided, and the unmanned aerial vehicle adopts the arm folding assembly.

The embodiment of the invention has the beneficial effects that:

this horn folding assembly passes through the mutually supporting of connecting piece, fixed sleeve, horn holding section of thick bamboo and spacing lock piece, has solved unmanned aerial vehicle occupation space when not using among the prior art big, the inconvenient problem of accomodating. Meanwhile, the anti-slip bulges are arranged on the two flanges, so that the two flanges possibly caused by frequent folding or unfolding of the horn are effectively prevented from being ground flat to a certain extent, the problem of looseness caused by the matching of the connecting piece and the limiting locking piece is avoided, and the service life of the horn folding assembly is longer.

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 a folding assembly of a boom according to an embodiment of the present invention;

FIG. 2 is a schematic view of the arm folding assembly of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the structure of the connector of FIG. 1;

FIG. 4 is a schematic view of the fixing sleeve of FIG. 1;

FIG. 5 is a schematic view of the arm receiving cylinder of FIG. 1;

FIG. 6 is a schematic view of the positive stop of FIG. 1;

FIG. 7 is a first view of the arm folding assembly of FIG. 1 in use;

fig. 8 is a reference view of the use state of the arm folding assembly in fig. 1.

Icon: 100-a horn fold assembly; 1-a connector; 11-the connector body; 111-vertical section; 1111-a second positioning hole; 1112-a groove; 112-a first leg; 113-a second leg; 114-a connecting rod; 12-two flanges; 121-anti-slip bumps; 2-fixing the sleeve; 21-two fixed sides; 211-a first positioning hole; 22-a first screw hole; 3-a horn housing cylinder; 31-a second screw hole; 32-a second mounting hole; 33-limiting and clamping edges; 4-limiting locking piece; 41-a bottom plate; 411-third mounting hole; 42-two side plates; 421-a first indentation; 422-a second gap; 423-first mounting hole.

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.

In order to solve the problem that unmanned aerial vehicle is big because inconvenient accomodating and occupation space among the prior art, this embodiment provides an arm folding assembly 100 and unmanned aerial vehicle. Referring to fig. 1 and 2, the horn folding assembly 100 includes a connecting member 1, a fixing sleeve 2, a horn receiving cylinder 3, and a limit locking member 4.

Referring to fig. 1 and 3, the connecting member 1 includes a connecting member body 11, two parallel flanges 12 are extended from one end of the connecting member body 11 to the same side, and a plurality of anti-slip protrusions 121 are disposed on the other ends of the two flanges 12 away from the connecting member body 11. The position of the anti-slip protrusions 121 can be seen in particular in fig. 3.

The connecting member body 11 further includes a vertical section 111, a first supporting leg 112 and a second supporting leg 113 extending from the vertical section 111 to both sides, and a connecting rod 114 having two ends connected to the first supporting leg 112 and the second supporting leg 113, respectively, the first supporting leg 112 and the second supporting leg 113 are disposed at an included angle, and the two flanges 12 are disposed at one ends of the first supporting leg 112 and the second supporting leg 113 far away from the vertical section 111.

In order to save material of the connecting piece 1 and reduce the weight of the whole unmanned aerial vehicle, a groove 1112 is arranged on one side of the vertical section 111 close to the fixing sleeve 2. It should be noted that, the connector body 11 is set to the above structure so as to save materials and reduce the total weight of the unmanned aerial vehicle.

Referring to fig. 1, 2 and 4, the connecting member body 11 is movably connected to the outer wall surface of the fixed sleeve 2. Fixed sleeve 2 still includes two fixed limit 21 that are parallel arrangement that extend outward from fixed sleeve 2's lateral wall, and two fixed limit 21 all are equipped with first locating hole 211, and vertical section 111 is provided with second locating hole 1111, and first locating hole 211 passes through the second round pin hub connection with second locating hole 1111 to articulate connecting piece body 11 in this fixed sleeve 2's outer wall.

Referring to fig. 1 to 5, one end of the arm accommodating cylinder 3 is fixedly sleeved in the fixing sleeve 2, and the other end is movably connected to the limiting and locking member 4. Be equipped with a plurality of first screw 22 on the lateral wall of fixed sleeve 2, be equipped with a plurality of second screw 31 on the lateral wall that the horn held a section of thick bamboo 3, first screw 22 and second screw 31 one-to-one pass first screw 22 and fixed spiro union is in second screw 31 through the spiro union piece to hold a section of thick bamboo 3 with fixed sleeve 2 and horn and be connected fixedly.

Meanwhile, in order to prevent the rotation of the horn accommodated in the horn accommodating cylinder 3, the inner wall cross section of the horn accommodating cylinder 3 is configured to be non-circular, and may be, for example, a regular polygon, specifically, a regular hexagon in the present embodiment. The fixed sleeve 2 matched and fixed with the horn accommodating cylinder 3 is arranged at one end of the horn accommodating cylinder 3 far away from the limiting locking piece 4, the end of the horn accommodating cylinder 3 is provided with a limiting clamping edge 33 (the position of the limiting clamping edge 33 can be seen in figure 5), and the limiting clamping edge 33 is used for fixing the limiting fixed sleeve 2, so that the assembly of the fixed sleeve 2 on the horn accommodating cylinder 3 is more convenient, and the fixed sleeve 2 is prevented from deviating.

Referring to fig. 1 to 6, the limiting locking member 4 includes a bottom plate 41 and two side plates 42 extending upward from two sides of the bottom plate 41, the other end of the horn accommodating tube 3 is movably connected between the two side plates 42, a first notch 421 is formed on one side of each of the two side plates 42 facing the horn accommodating tube 3, and a second notch 422 is formed on one side of each of the two side plates 42 opposite to the first notch 421. It should be noted that the shape of the first notch 421 and the second notch 422 is matched with the shape of the two flanges 12, so that the two flanges 12 can be clamped in the first notch 421 or the second notch 422.

It should be noted that, in this embodiment, the movable connection between the end of the horn accommodating cylinder 3 far away from the fixing sleeve 2 and the two side plates 42 is specifically a hinge, the two side plates 42 are both provided with first mounting holes 423, the end of the horn accommodating cylinder 3 far away from the fixing sleeve 2 is provided with second mounting holes 32, and the first mounting holes 423 are connected with the second mounting holes 32 through first pin shafts.

The bottom plate 41 is provided with at least one third mounting hole 411, and a fixing member (e.g., a bolt) passes through the third mounting hole 411 to fix the limiting and locking member 4 to the rack. In actual production installation, a plurality of bolts, for example four bolts, can be used, so that the arm folding assembly 100 is more firmly fixed with the frame, and the rotation cannot occur.

Referring to fig. 1 to 8, the arm folding assembly 100 fixedly connects the arm accommodating cylinder 3 to the fixing sleeve 2, hinges the connecting element 1 to one end of the fixing sleeve 2, and hinges one end of the arm accommodating cylinder 3 away from the fixing sleeve 2 to the first mounting hole 423 through the first pin. When the horn accommodating cylinder 3 is at the first locking position (i.e. the horn is in the extending state), the two flanges 12 are clamped in the first notch 421, the anti-slip protrusions 121 are in contact with the first notch 421 to limit and clamp the horn accommodating cylinder 3 and the limiting and locking piece 4, and the horn folding assembly 100 is in the first locking state; when the horn needs to be folded, the two flanges 12 are separated from the first notch 421 (the separation state can refer to fig. 7 specifically), and the horn accommodating cylinder 3 is rotated to rotate the horn accommodating cylinder 3 to the second locking position relative to the limiting locking piece 4, and then the two flanges 12 are clamped in the second notch 422, the anti-slip protrusions 121 are attached to and contacted with the second notch 422, the horn accommodating cylinder 3 is clamped with the limiting locking piece 4 in a limiting manner, and the horn folding assembly 100 is in the second locking state (that is, the horn is in the folded state).

It should be noted that, when the horn accommodating cylinder 3 needs to be rotated, a pressure can be applied to the end of the connecting member 1 away from the two flanges 12 toward the horn accommodating cylinder 3, so that the two flanges 12 of the connecting member 1 are separated from the first notch 421, the horn accommodating cylinder 3 can be easily rotated to the folded state, and then a pressure is applied to the connecting member 1, so that the two flanges 12 are snapped into the second notch 422. The anti-slip bulges 121 make the clamping of the two flanges 12 more stable, and prevent the problem that the two flanges 12 are ground flat and loosened due to frequent folding and unfolding of the machine arm.

To sum up, this horn folding assembly 100 has solved among the prior art unmanned aerial vehicle and has leaded to the problem that occupation space is big because inconvenient accomodating when not using through mutually supporting of connecting piece 1, fixed sleeve 2, horn containing cylinder 3 and spacing latch fitting 4. Meanwhile, the anti-slip protrusions 121 are arranged on the two flanges 12, so that the two flanges 12 possibly caused by frequent folding or unfolding of the horn are effectively prevented from being ground flat to a certain extent, the problem of looseness in the matching of the connecting piece 1 and the limiting locking piece 4 is avoided, and the service life of the horn folding assembly 100 is longer.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to 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.

Claims

1. An arm folding assembly, comprising:

the connecting piece comprises a connecting piece body, wherein two flanges which are arranged in parallel extend towards the same side from one end of the connecting piece body, and a plurality of anti-slip bulges are arranged at the other ends of the two flanges far away from the connecting piece body;

the connecting piece body is movably connected to the outer wall surface of the fixed sleeve;

one end of the arm accommodating cylinder is fixedly sleeved in the fixed sleeve; and

the limiting locking piece comprises a bottom plate and two side plates extending upwards from two sides of the bottom plate, the other end of the horn containing cylinder is movably connected between the two side plates, a first notch is formed on one side of each of the two side plates facing the horn containing cylinder, a second notch is formed on one side of each of the two side plates opposite to the first notch,

when the horn accommodating cylinder is in a first locking position, the two flanges are clamped in the first notch, the anti-slip bulge is in contact with the first notch in an attaching manner so as to limit and clamp the horn accommodating cylinder and the limiting locking piece, and the horn folding assembly is in a first locking state; when the two flanges are separated from the first notch, the horn accommodating cylinder is rotated to enable the horn accommodating cylinder to rotate to a second locking position relative to the limiting locking piece, the two flanges are clamped in the second notch, the anti-slip protrusions are in fit contact with the second notch, the horn accommodating cylinder is clamped and fixed with the limiting locking piece in a limiting mode, and the horn folding assembly is in a second locking state.

2. The horn folding assembly of claim 1, wherein the connecting member body is hinged to an outer wall surface of the fixing sleeve, and the other end of the horn accommodating barrel is hinged between the two side plates.

3. The folding assembly of a horn as claimed in claim 2, wherein the two side plates are provided with first mounting holes, the end of the horn accommodating cylinder away from the fixing sleeve is provided with second mounting holes, and the first mounting holes are connected with the second mounting holes through first pins.

4. The horn folding assembly of claim 1 wherein said base plate has at least one third mounting hole through which a fastener is passed to secure said positive stop to the frame.

5. The horn folding assembly of claim 1, wherein the connecting member body further comprises a vertical section, a first leg and a second leg extending from the vertical section to two sides, and a connecting rod having two ends connected to the first leg and the second leg, the first leg and the second leg are disposed at an included angle, and the two flanges are respectively located at one ends of the first leg and the second leg far away from the vertical section.

6. The horn folding assembly of claim 5, wherein the fixing sleeve further comprises two fixing edges extending outward from the outer side wall of the fixing sleeve in a parallel arrangement, the two fixing edges are both provided with a first positioning hole, the vertical section is provided with a second positioning hole, and the first positioning hole and the second positioning hole are connected through a second pin.

7. The folding assembly of claim 1, wherein a plurality of first screw holes are formed in a side wall of the fixing sleeve, a plurality of second screw holes are formed in a side wall of the horn accommodating cylinder, the first screw holes and the second screw holes are in one-to-one correspondence, and a screw connector penetrates through the first screw holes to be fixedly screwed into the second screw holes so as to fixedly connect the fixing sleeve with the horn accommodating cylinder.

8. The horn folding assembly of claim 5 wherein said vertical section has a recess on a side thereof adjacent said stationary sleeve.

9. The horn folding assembly of claim 5 wherein the inner wall of the horn receiving cylinder is a regular polygon in cross-section.

10. An unmanned aerial vehicle comprising the boom folding assembly of any one of claims 1-9.