CN110053758B - Unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof - Google Patents
Unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof Download PDFInfo
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- CN110053758B CN110053758B CN201910487649.3A CN201910487649A CN110053758B CN 110053758 B CN110053758 B CN 110053758B CN 201910487649 A CN201910487649 A CN 201910487649A CN 110053758 B CN110053758 B CN 110053758B
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- unmanned aerial
- aerial vehicle
- folding mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/30—Parts of fuselage relatively movable to reduce overall dimensions of aircraft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses an unmanned aerial vehicle horn folding mechanism and an unmanned aerial vehicle, which belong to the field of unmanned aerial vehicles and comprise an upper connecting plate and a lower connecting plate which are fixedly connected with the unmanned aerial vehicle, wherein an inner sleeve is fixedly arranged below the upper connecting plate, a fixed sleeve is fixedly arranged outside the upper end of the inner sleeve, a connecting sleeve is movably sleeved outside the middle part of the inner sleeve, a rotating sleeve is rotatably connected outside the lower connecting plate, a pre-tightening spring is arranged between the connecting sleeve and the lower connecting plate, gaps are formed in the upper part and the lower part of the connecting sleeve and are respectively matched with bosses on the fixed sleeve and the rotating sleeve, and the gap between the rotating sleeve and the connecting sleeve is not smaller than the height of the bosses. Compared with the prior art, the invention has the beneficial effects that: 1. the folding mechanism of the arm only maintains necessary components, and reduces the weight of the folding mechanism. 2. The invention has simple mechanism, is easy to install and operate, and can realize rapid unfolding and folding.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle arm folding mechanism and an unmanned aerial vehicle thereof.
Background
Unmanned aircraft, for short, "unmanned aircraft," is unmanned aircraft that is maneuvered using a radio remote control device and a self-contained programming device, or is operated autonomously, either entirely or intermittently, by an on-board computer.
In recent years, the multi-rotor unmanned aerial vehicle rapidly develops, rapidly occupies the unmanned aerial vehicle market by virtue of the advantages of simple operation, flexibility, easiness in realizing rapid lifting, light weight, high reliability, convenience in maintenance and the like, and is widely applied to the fields of aerial photography, ground exploration, investigation and the like.
Due to the existence of the multiple rotors, the space occupied by the multiple-rotor unmanned aerial vehicle is large, and the folding of the horn is a means which can be adopted by most unmanned aerial vehicles, so that the size of the unmanned aerial vehicle in the non-use process is reduced. However, the existing folding structure of the arm has poor firmness, inconvenient installation and operation and low convenience in unfolding and folding.
Disclosure of Invention
The invention aims to provide an unmanned aerial vehicle arm folding mechanism and an unmanned aerial vehicle thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof, include with unmanned aerial vehicle fixed connection's upper junction plate and lower connecting plate, the fixed inner skleeve that sets up in upper junction plate below, the fixed sleeve that is provided with in inner skleeve upper end outside, inner skleeve middle part outside movable sleeve has the connecting sleeve, and the connecting plate outside rotates down and is connected with the rotation sleeve, is equipped with the pretension spring between connecting sleeve and the lower connecting plate, the opening has been seted up to the connecting sleeve upper and lower side, and the opening cooperatees with fixed sleeve and the boss on the rotation sleeve respectively, rotates sleeve and connecting sleeve clearance and is not less than boss height.
As a further scheme of the invention: the fixed sleeve, the inner sleeve and the upper connecting plate are fixedly connected through bolts.
As still further aspects of the invention: the connecting sleeve is of a three-way structure, the outer side of the connecting sleeve is connected with the horn, and the pretightening force of the pretightening spring is larger than the weight of the horn.
As still further aspects of the invention: the outer side of the lower connecting plate is fixedly connected with the check ring and the limit sleeve through bolts, and the rotary sleeve is rotationally connected with the limit sleeve through a gasket.
As still further aspects of the invention: and the outer side of the connecting check ring is movably connected with a positioning piece for positioning the rotating sleeve.
As still further aspects of the invention: the pre-tightening spring is positioned between the rotating sleeve and the inner sleeve, and the upper end and the lower end of the pre-tightening spring are respectively propped against the connecting sleeve and the gasket.
As still further aspects of the invention: the outer diameters of the fixed sleeve, the connecting sleeve and the rotating sleeve are consistent in size.
As still further aspects of the invention: the boss height is less than the opening degree of depth, and the angle of inclination of opening both sides is different.
As still further aspects of the invention: the upper connecting plate, the lower connecting plate, the inner sleeve, the fixed sleeve, the connecting sleeve, the rotating sleeve, the horn and the limiting sleeve are all made of carbon fiber materials.
An unmanned aerial vehicle adopting any one of the unmanned aerial vehicle arm folding mechanisms.
Compared with the prior art, the invention has the beneficial effects that: 1. the folding mechanism of the arm only maintains necessary components, and reduces the weight of the folding mechanism.
2. The invention has simple mechanism, is easy to install and operate, and can realize rapid unfolding and folding.
Drawings
FIG. 1 is a schematic diagram of a horn folding mechanism;
FIG. 2 is a schematic cross-sectional view of a horn folding mechanism;
FIG. 3 is a schematic view of a locked state of a horn;
FIG. 4 is a schematic diagram of the cooperation of the boss and the notch;
FIG. 5 is a schematic diagram of a horn down process;
FIG. 6 is an exploded view of the present invention;
in the figure: the device comprises a 1-upper connecting plate, a 2-lower connecting plate, a 3-inner sleeve, a 4-fixed sleeve, a 5-connecting sleeve, a 6-rotating sleeve, a 7-pre-tightening spring, an 8-notch, a 9-boss, a 10-horn, an 11-connecting retainer ring, a 12-limiting sleeve, a 13-locating piece and a 14-gasket.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiment one: referring to fig. 1 and 2, an unmanned aerial vehicle arm folding mechanism and an unmanned aerial vehicle thereof comprise an upper connecting plate 1 and a lower connecting plate 2 which are fixedly connected with the unmanned aerial vehicle, an inner sleeve 3 which is fixedly arranged below the upper connecting plate 1, a fixed sleeve 4 which is fixedly arranged outside the upper end of the inner sleeve 3, and the fixed sleeve 4, the inner sleeve 3 and the upper connecting plate 1 are connected by bolts to form a fixedly connected whole, so that no movement is generated in the whole folding process;
referring to fig. 1, 2 and 6, a connecting sleeve 5 is movably sleeved at the outer side of the middle part of the inner sleeve 3, a rotating sleeve 6 is rotatably connected at the outer side of the lower connecting plate 2, a pre-tightening spring 7 is arranged between the connecting sleeve 5 and the lower connecting plate 2, the pre-tightening spring 7 is positioned between the rotating sleeve 6 and the inner sleeve 3, the lower end of the pre-tightening spring 7 is propped against the lower connecting plate 2, and the upper end of the pre-tightening spring is propped against the connecting sleeve 5, so that an upward pre-tightening force is given to the connecting sleeve 5, and the force is larger than the gravity of the whole arm 10, so that the connecting sleeve 5 is propped against the fixed sleeve 4;
referring to fig. 3 and 5, a gap 8 is formed at the upper and lower sides of the connecting sleeve 5, the gap 8 is respectively matched with the boss 9 on the fixed sleeve 4 and the rotating sleeve 6, the gap between the rotating sleeve 6 and the connecting sleeve 5 is slightly larger than the height of the boss 9, when the gap 8 above the connecting sleeve 5 is matched with the gap 8 of the fixed sleeve 4, a locking state is formed under the action of the pretightening force of the pretightening spring 7, and the rotating sleeve 6 is rotated at this time, so that the boss 9 of the rotating sleeve 6 just fills the gap between the connecting sleeve 5 and the rotating sleeve 6, the function of supporting the connecting sleeve 5 in an auxiliary way is achieved, the swinging of the connecting sleeve 5 is avoided, and the rotating sleeve 6 can be locked by adopting the positioning piece 13 for positioning; when the reverse folding is retracted, the positioning piece 13 is loosened, the rotating sleeve 6 is rotated, the boss 9 of the rotating sleeve 6 is matched with the notch 8, then the connecting piece 5 is pressed down, the connecting piece 5 can be rotated to fold, and at the moment, the rotating sleeve 6 synchronously rotates.
Referring to fig. 3 and 4, the connecting sleeve 5 is in a three-way structure, the outer side of the connecting sleeve 5 is connected with the horn 10, the pretightening force of the pretightening spring 7 is greater than the weight of the horn 10, when the pretightening force of the pretightening spring 7 is smaller than the horn, the condition that the boss 9 above the rotating sleeve 6 supports the connecting sleeve 5 can occur, at this moment, the connecting sleeve 5 and the fixed sleeve 4 generate a micro-gap, the micro-gap can shake slightly, when the longitudinal movable gap of the connecting sleeve 5 is consistent with the boss 9 of the rotating sleeve 6 in height, the supporting effect can be completely achieved, and when the longitudinal movable gap of the connecting sleeve 5 is greater than the boss 9 of the rotating sleeve 6 in height, the positioning of the connecting sleeve 5 is performed through the pretightening spring 7.
Referring to fig. 2 and 6, the outer side of the lower connecting plate 2 is fixedly connected with the retainer ring 11 and the limit sleeve 12 through bolts, the rotary sleeve 6 is rotationally connected with the limit sleeve 12 through the gasket 14, and the gasket 14 can well reduce friction force and can be used for adjusting the pretightening force of the pretightening spring 7. Furthermore, it can be used to adjust the gap between the rotating sleeve 6 and the connecting sleeve 5.
Referring to fig. 3 and 6, the outer side of the connecting retainer ring 11 is movably connected with a positioning member 13 for positioning the rotating sleeve 6, the positioning member 13 may be a spring plate connected in a rotating manner, and the positioning member is matched with a small hole formed in the rotating sleeve 6 to limit the rotating sleeve 6 to rotate, or may be positioned by a positioning device such as a spring driving positioning pin.
The upper end and the lower end of the pre-tightening spring 7 are respectively propped against the connecting sleeve 5 and the gasket 14 to reduce friction force in the rotating process.
The outer diameters of the fixed sleeve 4, the connecting sleeve 5 and the rotating sleeve 6 are consistent in size, and the uniform outer diameter, the ornamental value and the manufacturing process are convenient.
The boss 9 is higher than the opening 8 degree of depth, and the boss 9 is higher than the opening 8 degree of depth and leads to producing a little clearance between boss 9 and the opening 8 to make between connecting sleeve 5 and the positioning sleeve 4 closely coincide, can not produce the gap in virtual position, the angle of inclination of opening 8 both sides is different, and the connecting sleeve 5 top is located folding to revolve to a side wall and be little angle contained angle with the horizontal line, and the opposite side is big angle contained angle. The lower side of the connecting sleeve 5 is positioned on one side wall of the unfolding rotary direction and forms a small angle with the horizontal line, and the other side of the connecting sleeve forms a large angle. The small angle included angle is preferably 14 DEG + -5 DEG, and the large angle included angle is preferably 77 DEG + -5 deg.
An unmanned aerial vehicle, this unmanned aerial vehicle adopts above-mentioned unmanned aerial vehicle horn folding mechanism.
Embodiment two: this embodiment is a further improvement over the previous embodiment: the upper connecting plate 1, the lower connecting plate 2, the inner sleeve 3, the fixed sleeve 4, the connecting sleeve 5, the rotating sleeve 6, the horn 10 and the limiting sleeve 12 are all made of carbon fiber materials or high-strength plastics, and the weight of the machine body is reduced when the supporting strength is kept by adopting the carbon fiber materials or the high-strength plastics.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The utility model provides an unmanned aerial vehicle horn folding mechanism, includes upper junction plate (1) and lower junction plate (2) with unmanned aerial vehicle fixed connection, inner skleeve (3) that upper junction plate (1) below was fixed to be set up, and inner skleeve (3) upper end outside is fixed to be provided with fixed sleeve (4), a serial communication port, inner skleeve (3) middle part outside activity cover has connecting sleeve (5), and connecting sleeve (5) are tee bend structure, and lower junction plate (2) outside rotates and is connected with rotating sleeve (6), is equipped with pretension spring (7) between connecting sleeve (5) and lower junction plate (2), opening (8) have been seted up to connecting sleeve (5) upper and lower side, and opening (8) cooperate with boss (9) on fixed sleeve (4) and rotating sleeve (6) respectively, and rotating sleeve (6) clearance is not less than boss (9) height, fixed sleeve (4), connecting sleeve (5) are unanimous with rotating sleeve (6) external diameter size;
the outer side of the connecting sleeve (5) is connected with an organic arm (10), and the pretightening force of the pretightening spring (7) is larger than the weight of the organic arm (10);
the outer side of the lower connecting plate (2) is fixedly connected with a retainer ring (11) and a limit sleeve (12) through bolts, and the rotary sleeve (6) is rotationally connected with the limit sleeve (12) through a gasket (14);
a positioning piece (13) for positioning the rotary sleeve (6) is movably connected to the outer side of the connecting check ring (11);
the pre-tightening spring (7) is positioned between the rotating sleeve (6) and the inner sleeve (3), and the upper end and the lower end of the pre-tightening spring (7) are respectively abutted against the connecting sleeve (5) and the gasket (14);
the height of the boss (9) is smaller than the depth of the notch (8), and the inclination angles of the two sides of the notch (8) are different.
2. The unmanned aerial vehicle horn folding mechanism according to claim 1, wherein the fixing sleeve (4), the inner sleeve (3) and the upper connecting plate (1) are fixedly connected through bolts.
3. The unmanned aerial vehicle horn folding mechanism according to claim 1, wherein the upper connecting plate (1), the lower connecting plate (2), the inner sleeve (3), the fixed sleeve (4), the connecting sleeve (5), the rotating sleeve (6), the horn (10) and the limiting sleeve (12) are all made of carbon fiber materials.
4. A unmanned aerial vehicle, wherein the unmanned aerial vehicle arm folding mechanism according to any one of claims 1 to 3 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487649.3A CN110053758B (en) | 2019-06-05 | 2019-06-05 | Unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487649.3A CN110053758B (en) | 2019-06-05 | 2019-06-05 | Unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof |
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| Publication Number | Publication Date |
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| CN110053758A CN110053758A (en) | 2019-07-26 |
| CN110053758B true CN110053758B (en) | 2023-11-17 |
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| CN201910487649.3A Active CN110053758B (en) | 2019-06-05 | 2019-06-05 | Unmanned aerial vehicle horn folding mechanism and unmanned aerial vehicle thereof |
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| CN115320824B (en) * | 2022-06-28 | 2023-05-02 | 西安羚控电子科技有限公司 | Unfolding method for wings of folding wing flying device |
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