CN107031826A - A kind of unmanned plane Propeller Guard device - Google Patents
A kind of unmanned plane Propeller Guard device Download PDFInfo
- Publication number
- CN107031826A CN107031826A CN201710394448.XA CN201710394448A CN107031826A CN 107031826 A CN107031826 A CN 107031826A CN 201710394448 A CN201710394448 A CN 201710394448A CN 107031826 A CN107031826 A CN 107031826A
- Authority
- CN
- China
- Prior art keywords
- bar
- brake
- propeller
- flexible arc
- rotary shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/006—Safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/002—Braking propellers, e.g. for measuring the power output of an engine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
- B64U30/20—Rotors; Rotor supports
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a kind of unmanned plane Propeller Guard device.Unmanned plane includes horn, the end of horn is provided with rotary shaft, rotary shaft is provided with propeller, rotary shaft between propeller and horn surface is provided with several the first brake tooths being circumferentially distributed, Propeller Guard device includes rigidly fixing bar, flexible arc bar and brake bar, two rigidly fix the side that bar is fixed on the end of horn, the two ends of flexible arc bar connect two ends for rigidly fixing bar respectively, the radius of flexible arc bar is not less than the length of propeller, one end of brake bar is bent downwardly and connects the middle part of flexible arc bar, the end of the other end of brake bar is provided with several the second brake tooths being circumferentially distributed, when flexible arc bar is squeezed, brake bar can be promoted to be moved towards rotary shaft, it is intermeshed so as to obtain several second brake tooths with several first brake tooths.The present invention can prevent propeller from being damaged to people or thing.
Description
Technical field
The present invention relates to unmanned air vehicle technique field, more particularly to a kind of unmanned plane Propeller Guard device.
Background technology
The propeller of the existing multi-rotor unmanned aerial vehicle of in the market be it is exposed outside, existed in the state of work
Serious potential safety hazard, in the case of manipulation error or mechanical disorder, propeller rotate at a high speed, sharp may be right
People or thing in manipulator itself, working environment cause great damage.
Although, part unmanned plane have be directed to propeller guard ring design, be non-close, only for spiral shell
Revolve the protection of oar, it is impossible to isolate the contact of people or thing with propeller, it is impossible to fundamentally avoid injury of the propeller to people or thing.
The content of the invention
The present invention solves the technical problem of a kind of unmanned plane Propeller Guard device is provided, propeller can be prevented
People or thing are damaged.
In order to solve the above technical problems, one aspect of the present invention is：A kind of unmanned plane propeller is provided to prevent
Protection unit, the unmanned plane includes horn, and the end of the horn is provided with rotary shaft, and the rotary shaft is provided with propeller, institute
The rotary shaft stated between propeller and the horn surface is provided with several the first brake tooths being circumferentially distributed, the propeller
Protector includes rigidly fixing bar, flexible arc bar and brake bar, and bar is rigidly fixed described in two and is fixed on the horn
The side of end, the two ends of the flexible arc bar connect described two ends for rigidly fixing bar, the flexible arc respectively
The radius of bar is not less than the length of the propeller, and one end of the brake bar is bent downwardly and connects the flexible arc bar
Middle part, the end of the other end of the brake bar is provided with several the second brake tooths being circumferentially distributed, when the flexible arc bar
When being squeezed, the brake bar can be promoted to be moved towards the rotary shaft, to cause several second brake tooths and number
Individual first brake tooth intermeshing.
Wherein, the center of circle and the axle center of the rotary shaft of the flexible arc bar are arranged concentrically.
Wherein, the axis of the rotary shaft is perpendicular to the surface rigidly fixed where bar, flexible arc bar.
The beneficial effects of the invention are as follows：The situation of prior art is different from, the present invention sets two in the end sides of horn
Root rigidly fixes bar, and two ends for rigidly fixing bar are connected is provided with spiral in the middle part of flexible arc bar, flexible arc bar
The brake bar of oar rotary shaft, rotary shaft is provided with the first brake tooth being circumferentially distributed, and the end of brake bar, which is provided with, circumferentially to be divided
Second brake tooth of cloth, when unmanned plane strikes people or thing in flight course, flexible arc bar compressive deformation, and then promote
Brake bar is moved towards rotary shaft, and the second brake tooth and the first brake tooth are intermeshed so that propeller stops operating immediately, from
And can prevent propeller from being damaged to people or thing.
Brief description of the drawings
Fig. 1 is the structural representation of unmanned plane Propeller Guard device provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is the structural representation of unmanned plane Propeller Guard device provided in an embodiment of the present invention refering to Fig. 1.The present embodiment
In, unmanned plane includes horn 10, and the end of horn 10 is provided with rotary shaft 11, and rotary shaft 11 is provided with propeller 12, propeller 12
Rotary shaft 11 between the surface of horn 10 is provided with several the first brake tooths 111 being circumferentially distributed.
Propeller Guard device includes rigidly fixing bar 21, flexible arc bar 22 and brake bar 23, and two rigidly fix bar
21 are fixed on the side of the end of horn 10, and the two ends of flexible arc bar 22 connect two ends for rigidly fixing bar 21 respectively,
The radius of flexible arc bar 22 is not less than the length of propeller 12.
One end of brake bar 23 is bent downwardly and connects the middle part of flexible arc bar 22, the end of the other end of brake bar 23
Provided with several the second brake tooths 231 being circumferentially distributed.Rigidly fix the horizontal plane that bar 21 and flexible arc bar 22 are formed
Be not higher by the surface of horn 10, and brake bar 23 needs to be generally aligned in the same plane with the first brake tooth 111, and brake bar 23 it is in need and
Flexible arc bar 22 is fixedly connected, thus one end of brake bar 23 is bent downwardly and connects flexible arc bar 22.
When flexible arc bar 22 is squeezed, brake bar 23 can be promoted to be moved towards rotary shaft 11, so as to obtain several
Second brake tooth 231 is intermeshed with several first brake tooths 111.
Because the unmanned plane of many rotors has many horns 10, every horn 10 all there is corresponding Propeller Guard to fill
Put, when unmanned plane in flight course it is out of control strike people or thing when, flexible arc bar 22 can first strike people or thing so that by
Compressive strain, flexible arc bar 22 promotes brake bar 23 to be moved towards rotary shaft 11 after deforming, and several second brake tooths 231 will be with number
Individual first brake tooth 111 is contacted and is intermeshed so that propeller 12 stops operating immediately, so as to prevent 12 pairs of propeller
People or thing are damaged.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of unmanned plane Propeller Guard device, the unmanned plane includes horn, the end of the horn is provided with rotary shaft, institute
Rotary shaft is stated provided with propeller, it is characterised in that the rotary shaft between the propeller and the horn surface is provided with number
Individual the first brake tooth being circumferentially distributed, the Propeller Guard device includes rigidly fixing bar, flexible arc bar and brake bar,
The side that bar is fixed on the end of the horn is rigidly fixed described in two, the two ends of the flexible arc bar connect described respectively
Two rigidly fix bar end, the radius of the flexible arc bar is not less than the length of the propeller, the brake bar
One end is bent downwardly and connects the middle part of the flexible arc bar, the end of the other end of the brake bar provided with it is several circumferentially
Second brake tooth of distribution, when the flexible arc bar is squeezed, can promote the brake bar towards the rotary shaft
It is mobile, to cause several second brake tooths to be intermeshed with several first brake tooths.
2. unmanned plane Propeller Guard device according to claim 1, it is characterised in that the center of circle of the flexible arc bar
It is arranged concentrically with the axle center of the rotary shaft.
3. unmanned plane Propeller Guard device according to claim 1, it is characterised in that the axis of the rotary shaft is vertical
In it is described rigidly fix bar, flexible arc bar where surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394448.XA CN107031826A (en) | 2017-05-29 | 2017-05-29 | A kind of unmanned plane Propeller Guard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394448.XA CN107031826A (en) | 2017-05-29 | 2017-05-29 | A kind of unmanned plane Propeller Guard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107031826A true CN107031826A (en) | 2017-08-11 |
Family
ID=59540651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710394448.XA Pending CN107031826A (en) | 2017-05-29 | 2017-05-29 | A kind of unmanned plane Propeller Guard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107031826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826234A (en) * | 2017-11-08 | 2018-03-23 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of anticollision unmanned plane propeller |
| CN109436306A (en) * | 2018-11-23 | 2019-03-08 | 潘新凤 | A kind of unmanned plane rotor protective cover with Fast Installation structure |
| WO2022110211A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市大疆创新科技有限公司 | Protection mechanism, unmanned aerial vehicle assembly, and unmanned aerial vehicle |
-
2017
- 2017-05-29 CN CN201710394448.XA patent/CN107031826A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826234A (en) * | 2017-11-08 | 2018-03-23 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of anticollision unmanned plane propeller |
| CN109436306A (en) * | 2018-11-23 | 2019-03-08 | 潘新凤 | A kind of unmanned plane rotor protective cover with Fast Installation structure |
| WO2022110211A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市大疆创新科技有限公司 | Protection mechanism, unmanned aerial vehicle assembly, and unmanned aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |
|
| WD01 | Invention patent application deemed withdrawn after publication |