CN207120876U - A kind of unmanned plane Propeller Guard device - Google Patents
A kind of unmanned plane Propeller Guard device Download PDFInfo
- Publication number
- CN207120876U CN207120876U CN201720612047.2U CN201720612047U CN207120876U CN 207120876 U CN207120876 U CN 207120876U CN 201720612047 U CN201720612047 U CN 201720612047U CN 207120876 U CN207120876 U CN 207120876U
- 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.)
- Expired - Fee Related
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Abstract
The utility model 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 both 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 utility model can prevent propeller from being damaged to people or thing.
Description
Technical field
Unmanned air vehicle technique field is the utility model is related to, 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, in the state of work there is
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.
Utility model content
The utility model can prevent spiral shell mainly solving the technical problems that provide a kind of unmanned plane Propeller Guard device
Rotation oar damages to people or thing.
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of unmanned plane spiral is provided
Oar protector, the unmanned plane include horn, and the end of the horn is provided with rotary shaft, and the rotary shaft is provided with spiral
Oar, the rotary shaft between the propeller and the horn surface is provided with several the first brake tooths being circumferentially distributed, described
Propeller Guard device includes rigidly fixing bar, flexible arc bar and brake bar, rigidly fixed described in two bar be fixed on it is described
The side of the end of horn, the both ends of the flexible arc bar connect two ends for rigidly fixing bar, the bullet respectively
Property bow radius be not less than the propeller length, one end of the brake bar is bent downwardly and connects the elastic arc
The middle part of shape bar, the end of the other end of the brake bar is provided with several the second brake tooths being circumferentially distributed, when the elasticity
When bow is squeezed, the brake bar can be promoted to be moved towards the rotary shaft, to cause several second brakings
Tooth is intermeshed with several first brake tooths.
Wherein, the center of circle of the flexible arc bar and the axle center of the rotary shaft 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 utility model are：The situation of prior art is different from, the utility model is in the end side of horn
Face sets two to rigidly fix bar, and two end connection flexible arc bars for rigidly fixing bar, the middle part of flexible arc bar is provided with
Towards the brake bar of propeller rotary shaft, rotary shaft is provided with the first brake tooth being circumferentially distributed, and the end of brake bar is provided with
The second brake tooth being circumferentially distributed, when unmanned plane strikes people or thing in flight course, flexible arc bar compressive deformation,
And then promoting brake bar to be moved towards rotary shaft, the second brake tooth and the first brake tooth are intermeshed so that propeller stops immediately
Rotation stop is moved, so as to prevent propeller from being damaged to people or thing.
Brief description of the drawings
Fig. 1 is the structural representation for the unmanned plane Propeller Guard device that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
It is the structural representation for the unmanned plane Propeller Guard device that the utility model embodiment provides refering to Fig. 1.This reality
Apply in example, 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, spiral
Rotary shaft 11 between oar 12 and 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 both 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 more rotors has more horns 10, all there is every horn 10 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 promote 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 propeller 12 right
People or thing damage.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (3)
1. a kind of unmanned plane Propeller Guard device, the unmanned plane includes horn, and the end of the horn is provided with rotary shaft, institute
State rotary shaft and be 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 include rigidly fixing bar, flexible arc bar and brake bar,
Rigidly fix the side that bar is fixed on the end of the horn described in two, the both ends of the flexible arc bar connect described respectively
Two ends for rigidly fixing bar, the radius of the flexible arc bar are 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 be 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 |
|---|---|---|---|
| CN201720612047.2U CN207120876U (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 |
|---|---|---|---|
| CN201720612047.2U CN207120876U (en) | 2017-05-29 | 2017-05-29 | A kind of unmanned plane Propeller Guard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207120876U true CN207120876U (en) | 2018-03-20 |
Family
ID=61615463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720612047.2U Expired - Fee Related CN207120876U (en) | 2017-05-29 | 2017-05-29 | A kind of unmanned plane Propeller Guard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207120876U (en) |
-
2017
- 2017-05-29 CN CN201720612047.2U patent/CN207120876U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20180529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |