CN107161336A - A kind of security lock arrangement for blade - Google Patents
A kind of security lock arrangement for blade Download PDFInfo
- Publication number
- CN107161336A CN107161336A CN201710331774.6A CN201710331774A CN107161336A CN 107161336 A CN107161336 A CN 107161336A CN 201710331774 A CN201710331774 A CN 201710331774A CN 107161336 A CN107161336 A CN 107161336A
- Authority
- CN
- China
- Prior art keywords
- blade
- card
- tapered end
- lock arrangement
- security lock
- 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.)
- Withdrawn
Links
- 238000009434 installation Methods 0.000 claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C27/48—Root attachment to rotor head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/40—Arrangements for mounting power plants in aircraft
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/19—Propulsion using electrically powered motors
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of security lock arrangement for blade, belongs to unmanned air vehicle technique field.It includes train wheel bridge, secure latch, screw thread clamping plate, the installation tapered end being from top to bottom linked in sequence, and the installation tapered end is provided with tapered end groove, and the secure latch is caught in the tapered end groove when installing blade；The train wheel bridge is detachably connected with the screw thread clamping plate.Provided by the present invention for the security lock arrangement of blade, multi-rotor unmanned aerial vehicle is prevented completely due to penetrating air crash caused by oar.The security of multi-rotor unmanned aerial vehicle is considerably increased, its is simple in construction, practical and convenient, directly can be used on existing motor, without changing the accessories such as motor in addition.
Description
Technical field
The present invention relates to unmanned air vehicle technique field, more particularly to a kind of security lock arrangement for blade.
Background technology
Multi-rotor unmanned aerial vehicle, is a kind of special pilotless helicopter with three and above rotor shaft.It passes through
Motor rotation on each axle, drives rotor, so as to produce a liter thrust.Rotor always away from fixation, rather than general helicopter
It is variable like that.By changing the relative rotation speed between different rotors, thus it is possible to vary the size of single shaft propulsive force, so as to control flight
The running orbit of device.
Using the blade turned clockwise more than current most of multi-rotor unmanned aerial vehicle, anti-clockwise thread is installed.Inverse time
The blade of pin rotation, clockwise thread is installed.Such design can allow blade to play the work that self-locking steps up when rotation
With.But when multi-rotor unmanned aerial vehicle is stopped in the limit, blade may be released due to inertia.
A small number of new blade designs, are mounted with safety fastener.Existing blade secure latch design is all only using one
Vertical safety fastener is buckled in blade overcentre and fixed with pedestal, plays a part of locking, fixed blades.This design can be because of
Safety fastener fastening force caused by the use time growth of geometrical clamp declines, motor rotates at a high speed produced centrifugal force, nothing
The factors such as the dither of jolting during man-machine flight and motor itself and occur safety fastener thread off so as to cause blade pine
It is de-.
At present, both designs of the prior art all may result in and penetrate oar, generation situations such as air crash.Cause economy
Loss, can hurt personal safety when serious.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of security lock arrangement for blade, to prevent existing many rotors
The blade of unmanned plane penetrates oar and then avoids the occurrence of penetrating air crash caused by oar.
The invention provides a kind of security lock arrangement for blade, for blade to be fixed on into motor, including by upper
Train wheel bridge, secure latch, screw thread clamping plate, the installation tapered end being linked in sequence under, the installation tapered end are provided with tapered end groove, pacified
The secure latch is caught in the tapered end groove during dress blade；The train wheel bridge is detachably connected with the screw thread clamping plate.
Further, the secure latch includes chute pedestal, the first card, the second card, first card and institute
The second card slidable connection is stated on the chute pedestal, first card is connected with second card by extension spring,
Be provided with lockhole on first card and second card, the lockhole with the tapered end groove match with carry out from
Lock.
Further, first card and second card used Center, first card with it is described
Second card is provided with the boss for pressing.
Further, described install is provided with tapered end for the screw thread clamping plate to be rotated into the helicitic texture installed.
Further, the train wheel bridge is bolted with the screw thread clamping plate.
Further, the installation tapered end is bolted on the motor.
Provided by the present invention for the security lock arrangement of blade, during blade is installed, screw thread clamping plate is revolved with screw thread
Rotate into installation tapered end, until blade is installed in place, the lockhole region of secure latch is just caught in tapered end groove, by extension spring
Pulling force realizes lock oar；During unblock, secure latch boss is pressed, increase secure latch lockhole region is larger than tapered end, left-hand thread
Screw out and remove blade；Secure latch was central composite design, so will not be unclamped because of centrifugal force.It can just utilize on the contrary
Centrifugal force, forms self-locking.
Provided by the present invention for the security lock arrangement of blade, multi-rotor unmanned aerial vehicle is prevented completely due to penetrating caused by oar
Air crash.The security of multi-rotor unmanned aerial vehicle is considerably increased, its is simple in construction, practical and convenient, can be directly on existing motor
Use, without changing the accessories such as motor in addition.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is a kind of structural blast schematic diagram of security lock arrangement for blade according to an embodiment of the invention；
Fig. 2 is a kind of structural representation of the secure latch of security lock arrangement for blade shown in Fig. 1；
Fig. 3 is a kind of structural representation of security lock arrangement for blade according to an embodiment of the invention.
Embodiment
Fig. 1 is a kind of structural blast schematic diagram of security lock arrangement for blade according to an embodiment of the invention.
Fig. 3 is a kind of structural representation of security lock arrangement for blade according to an embodiment of the invention.As shown in figure 1, this
A kind of security lock arrangement for blade provided is invented, for blade 7 (Fig. 3 is shown) to be fixed on into motor 1, including by upper
Train wheel bridge 5, secure latch 4, screw thread clamping plate 3, the installation tapered end 2 being linked in sequence under, it is recessed that the installation tapered end 2 is provided with tapered end
Groove 21, the secure latch 4 is caught in the tapered end groove 21 when installing blade；Between the train wheel bridge 5 and the screw thread clamping plate 3
To be detachably connected.
Specifically, it can be fixedly connected to install between tapered end 2 and motor 1, or detachable connection, alternatively,
Tapered end 2 is installed to be bolted to connection on motor 1.Tapered end 2 is installed and is provided with tapered end groove 21 and for by the screw thread
The helicitic texture 22 that the rotation of clamping plate 3 is installed.Screw thread clamping plate 3 is provided centrally with and the corresponding internal thread hole of the helicitic texture 22
(not shown), during installation, screw thread clamping plate 3 can be screwed on installation tapered end 2.Blade 7 is located at screw thread clamping plate 3 and peace
Between full lock 4, install after blade 7, secure latch 4 is caught in the tapered end groove 21, and by train wheel bridge 5 and screw thread clamping plate 3
Connection, its connected mode is fixed preferably by fastening bolt, of course, and its connected mode can also be that other ground can
It is detachably connected with, such as snaps connection, bridging type is connected, the purpose is to realize the fixation of blade.
Fig. 2 is a kind of structural representation of the secure latch of security lock arrangement for blade shown in Fig. 1.Such as Fig. 2 institutes
Show, secure latch 4 includes chute pedestal 41, the first card 42, the second card 43, first card 42 and second card
43 slidable connections are on the chute pedestal 41, and first card 42 is connected with second card 43 by extension spring 44,
It is provided with first card 42 on first lockhole 421 and first boss 422, second card 43 and is provided with the second lockhole
431 and second boss 432, the lockhole (421 and 431) matches to carry out self-locking with the tapered end groove 21.Described first
Lockhole 421 and second lockhole 431 used Center, i.e., the described card 43 of first card 42 and second passes through extension spring 44
Connection so that together with the first lockhole 421 partially overlaps with second lockhole 431, when pressing first boss 422 and second is convex
During platform 432, the card 43 of the first card 42 and second is slided to lockhole area reduction direction, the He of the first lockhole 421 at center
The overlapping region of second lockhole 431 becomes big, when not pressing first boss 422 and second boss 432, the He of the first card 42
Second card 43 is stretched in the presence of extension spring 44 to both sides.
When installing blade 7, extension spring 44, which tenses the first card 42 and the second card 43, reduces the lockhole being stacked in the middle of card,
The card of secure latch 4 is caught in tapered end groove 21, forms self-locking；Simultaneously when the centrifugal action that blade rotates, the first card 42
It may proceed to reduce direction effect to hole with the second card 43, it is ensured that self-locking is stable.It is press card two first during unblock
Boss 422 and second boss 432, extension spring 44 are extended, middle hole amplification, complete unblock.
In a specific embodiment, the installation tapered end 2 is bolted on the motor 1.Its advantage
It is that can be directly applied to existing motor and blade is installed, it is not necessary to use the blade or motor specially designed.
When in use, train wheel bridge 5 is with screw thread clamping plate 3 by four for a kind of security lock arrangement for blade that the present invention is provided
There is screw thread in fastened by screw, screw thread clamping plate 3, blade is installed in correspondence tapered end screw thread, rotation.After blade is installed in place, secure latch 4
Center latch bore region just blocks tapered end groove 21, and lock oar is realized by the pulling force of extension spring 44.During unblock, pressing secure latch 4
Boss, increases secure latch center latch bore region, is larger than tapered end, completes unblock.Left-hand thread, which is screwed out, removes blade.Due to being
Central composite design is crossed, so secure latch will not unclamp because of centrifugal force.Centrifugal force can be just utilized on the contrary, formed certainly
Lock.
A kind of security lock arrangement for blade of the present invention, is connected between its train wheel bridge 5 and screw thread clamping plate 3 by bolt 6
Connect so that blade is avoided after installing to be penetrated the possibility of oar and anti-penetrate oar insurance there is provided one.
Provided by the present invention for the security lock arrangement of blade, multi-rotor unmanned aerial vehicle is prevented completely due to penetrating caused by oar
Air crash.The security of multi-rotor unmanned aerial vehicle is considerably increased, its is simple in construction, practical and convenient, can be directly on existing motor
Use, without changing the accessories such as motor in addition.
So far, although those skilled in the art will appreciate that detailed herein have shown and described the exemplary of the present invention
Embodiment, still, without departing from the spirit and scope of the present invention, still can directly be determined according to present disclosure
Or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the invention should be understood and defined as
Cover other all these variations or modifications.
Claims (6)
1. a kind of security lock arrangement for blade, for blade to be fixed on into motor, it is characterised in that including from top to bottom
Train wheel bridge, secure latch, screw thread clamping plate, the installation tapered end being linked in sequence, the installation tapered end are provided with tapered end groove, install oar
The secure latch is caught in the tapered end groove during leaf；The train wheel bridge is detachably connected with the screw thread clamping plate.
2. the security lock arrangement according to claim 1 for blade, it is characterised in that the secure latch includes chute
Pedestal, the first card, the second card, first card and the second card slidable connection on the chute pedestal,
First card is connected with second card by extension spring, and first card on second card with being provided with lock
Hole, the lockhole and the tapered end groove match are to carry out self-locking.
3. the security lock arrangement according to claim 2 for blade, it is characterised in that first card and described the
Two cards used Center, and first card is provided with the boss for pressing with second card.
4. the security lock arrangement according to claim 1 for blade, it is characterised in that be provided with the installation tapered end
For the screw thread clamping plate to be rotated into the helicitic texture installed.
5. the security lock arrangement according to claim 1 for blade, it is characterised in that the train wheel bridge and the screw thread
Clamping plate is bolted.
6. the security lock arrangement for blade according to any one of claim 1-5, it is characterised in that the installation lock
Head is bolted on the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331774.6A CN107161336A (en) | 2017-05-12 | 2017-05-12 | A kind of security lock arrangement for blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331774.6A CN107161336A (en) | 2017-05-12 | 2017-05-12 | A kind of security lock arrangement for blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107161336A true CN107161336A (en) | 2017-09-15 |
Family
ID=59815891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710331774.6A Withdrawn CN107161336A (en) | 2017-05-12 | 2017-05-12 | A kind of security lock arrangement for blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107161336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815842A (en) * | 2021-09-17 | 2021-12-21 | 南昌三瑞智能科技有限公司 | Propeller quick assembly disassembly structure and aircraft that is equipped with this structure |
-
2017
- 2017-05-12 CN CN201710331774.6A patent/CN107161336A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815842A (en) * | 2021-09-17 | 2021-12-21 | 南昌三瑞智能科技有限公司 | Propeller quick assembly disassembly structure and aircraft that is equipped with this structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |