CN204623827U - A kind of rotor wing unmanned aerial vehicle alighting gear - Google Patents
A kind of rotor wing unmanned aerial vehicle alighting gear Download PDFInfo
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- CN204623827U CN204623827U CN201520301546.0U CN201520301546U CN204623827U CN 204623827 U CN204623827 U CN 204623827U CN 201520301546 U CN201520301546 U CN 201520301546U CN 204623827 U CN204623827 U CN 204623827U
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- ratchet
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Abstract
A kind of rotor wing unmanned aerial vehicle alighting gear, relates to rotor wing unmanned aerial vehicle.Comprise bounce cylinder, ratchet device and ratchet control circuit, the external steering engine for unmanned plane outer cover in outer cover upper end of bounce cylinder, the sleeve connection of bounce cylinder outer cover lower end and ratchet device, ratchet structure establishes sleeve, sleeve outer cover, ratchet bar, ratchet, ratchet pull back spring, sleeve there is ratchet bearing, ratchet bar slide rail is established in sleeve, contact switch is provided with in sleeve, sleeve outer cover and sleeve lower end are spirally connected, ratchet bar to stretch in sleeve and with ratchet bar slide rail bearing fit, ratchet bar lower end is provided with ratchet bar bearing, ratchet bar bearing is used for and earth surface, ratchet bar both sides are provided with rib, ratchet upper end and ratchet bearing hinged, ratchet lower end coordinates with the ratchet of ratchet bar, ratchet pull back spring one end is connected with ratchet bearing, and the other end is connected with ratchet, ratchet control circuit is provided with battery, contact switch and electromagnet, on contact switch sleeve lining, electromagnet is located between the sleeve of ratchet structure and ratchet.
Description
Technical field
The utility model relates to rotor wing unmanned aerial vehicle, and especially relating to can a kind of rotor wing unmanned aerial vehicle alighting gear of self adaptation landform.
Background technology
In recent years, unmanned air vehicle technique had had the development of advancing by leaps and bounds.Due to its cost is low, maneuvering performance is good, viability is strong, no one was injured advantages such as risk, unmanned plane occupies extremely important status in modern military war, also has boundless prospect at civil area.Current unmanned plane mainly comprises fixed-wing unmanned plane and rotor wing unmanned aerial vehicle.Compared with fixed-wing unmanned plane, rotor wing unmanned aerial vehicle have structure simple, control flexibly, vertical takeoff and landing, can to hover or the advantage such as inverted flight, have a wide range of applications in Aerial photography, police service application etc.
The alighting gear of current rotor wing unmanned aerial vehicle is substantially all fixed type, also has the alighting gear of minority rotor wing unmanned aerial vehicle can realize synchronously moving up and down or packing up putting down (Chinese patent CN201410033875.1), to meet the requirement of Aerial photography.Such alighting gear has good comformability on smooth ground, but then can be very restricted when field with a varied topography, gently then breaks screw propeller, heavy then injure personal safety.
Summary of the invention
The purpose of this utility model is to provide and can automatically adjusts each alighting gear height according to landform, thus makes unmanned aerial vehicle body keep a kind of rotor wing unmanned aerial vehicle alighting gear of flat-hand position.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Rotor wing unmanned aerial vehicle alighting gear, comprises bounce cylinder, ratchet device and ratchet control circuit;
The external steering engine for unmanned plane outer cover in outer cover upper end of bounce cylinder, the outer cover lower end of bounce cylinder and the sleeve connection of ratchet device, ratchet structure is provided with sleeve, sleeve outer cover, ratchet bar, ratchet, ratchet pull back spring, sleeve there is ratchet bearing, ratchet bar slide rail is provided with in sleeve, contact switch is provided with in sleeve, sleeve outer cover and sleeve lower end are spirally connected, ratchet bar to stretch in sleeve and with ratchet bar slide rail bearing fit, ratchet bar lower end is provided with ratchet bar bearing, ratchet bar bearing is used for and earth surface, ratchet bar both sides are provided with rib, ratchet upper end and ratchet bearing hinged, ratchet lower end coordinates with the ratchet of ratchet bar, ratchet pull back spring one end is connected with ratchet bearing, the ratchet pull back spring other end is connected with ratchet,
Ratchet control circuit is provided with battery, contact switch and electromagnet; Battery is located in unmanned aerial vehicle body, and on contact switch sleeve lining, electromagnet is located between the sleeve of ratchet structure and ratchet.
The utility model has following outstanding advantages:
During use, multiple unmanned plane alighting gear is installed on rotor wing unmanned aerial vehicle fuselage and uses.For four alighting gears, principle of work is described below.
1, after four rotor wing unmanned aerial vehicles take off, the ratchet bar of four alighting gears is all in the lower limit of ratchet device sleeve, now ratchet control circuit disconnect, electromagnet without suction, ratchet by spring pulling force effect and away from ratchet bar.
2, when four rotor wing unmanned aerial vehicles land on unfairness ground, four alighting gears successively land, and when any one alighting gear lands, the ratchet bar belonging to it is encountered behind ground will upward sliding, and the contact switch belonging to it is closed.Specific works process is as follows:
(1) when first three alighting gear lands, when 4th alighting gear not yet lands, the ratchet bar of first three alighting gear respectively relative to sleeve upward sliding to different height, closed by three contact switches in ratchet control circuit, a contact switch is also had to be in off-state, because control circuit is circuit series, therefore control circuit is still in off state.
(2) when the 4th alighting gear lands, the ratchet bar upward sliding of the 4th alighting gear, thus triggering contact switch, so far four contact switches all close, ratchet control circuit is connected, by the ratchet of absorption ferrous material after electromagnet energising, thus the relative position of ratchet bar and sleeve is remained unchanged.Now four alighting gears all with earth surface, unmanned aerial vehicle body keeps flat-hand position simultaneously.
After (3) four alighting gears all land unmanned plane due to the effect of inertia can have certain effect to ground, at this moment the piston rod of bounce cylinder will shrink in cylinder, by this part stressed snubber, thus play the effect avoiding unmanned plane and ground hard collision.
The utility model has following beneficial effect:
When rotor wing unmanned aerial vehicle is in irregular ground landing, the ratchet structure of each alighting gear according to different ground adjustment alighting gear length, thus can ensure that airframe structure can remain level, avoids the safety hazard that fuselage tilts to cause; After the ratchet structure of each alighting gear is all located, the ground shock power that bounce cylinder is subject to after helping and absorbing unmanned plane landing, plays certain buffering effect to unmanned aerial vehicle body, thus avoids the damage that hard contact causes four rotor wing unmanned aerial vehicle parts.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model embodiment is arranged on four rotor wing unmanned aerial vehicles.
Fig. 2 is the structural representation of the utility model embodiment.
Fig. 3 is the sectional structure chart of the utility model embodiment.
Fig. 4 is the structural representation of the utility model embodiment ratchet bar.
Fig. 5 is the schematic circuit diagram of the utility model ratchet control circuit.
Detailed description of the invention
Following examples will be described in detail to the utility model by reference to the accompanying drawings.
See Fig. 1 ~ 5, below four the steering wheel outer covers 1 being arranged on four rotor wing unmanned aerial vehicles respectively that four rotor wing unmanned aerial vehicles are risen and fallen.Each rotor wing unmanned aerial vehicle alighting gear, comprises bounce cylinder 3, ratchet device and ratchet control circuit.
The external steering engine for unmanned plane outer cover in outer cover 3 upper end of bounce cylinder 3, outer cover 3 lower end of bounce cylinder 3 and the sleeve connection of ratchet device, ratchet structure is provided with sleeve 4, sleeve outer cover 6, ratchet bar 7, ratchet 5, ratchet pull back spring 8, sleeve 4 there is ratchet bearing 41, ratchet bar slide rail 42 is provided with in sleeve 4, contact switch 10 is provided with in sleeve 4, sleeve outer cover 6 and sleeve 4 lower end are spirally connected, ratchet bar 7 to stretch in sleeve 4 and with ratchet bar slide rail 42 bearing fit, ratchet bar 7 lower end is provided with ratchet bar bearing 72, ratchet bar bearing 72 for earth surface, ratchet bar 7 both sides are provided with rib 73, ratchet 5 upper end and ratchet bearing 41 hinged, ratchet 5 lower end coordinates with the ratchet 71 of ratchet bar 7, ratchet pull back spring 8 one end is connected with ratchet bearing 41, ratchet pull back spring 8 other end is connected with ratchet 5.
Ratchet control circuit is provided with battery 11, contact switch 10 and electromagnet 9; Battery 11 is located in unmanned aerial vehicle body, and on contact switch 10 sleeve 4 inwall, electromagnet 9 is located between the sleeve 4 of ratchet structure and ratchet 5.
Mark 31 is the piston rod of bounce cylinder 3.
When rib 73 contacts with sleeve outer cover 6, ratchet bar 7 is in lower limit, just can not encounter contact switch 10.Described ratchet 5 is ferrous material, its S. A. is connected on ratchet bearing 41, and at back with an aperture, a spring 8 is connected with between the aperture at ratchet 5 back and the aperture at ratchet bearing 41 back, when control circuit is not communicated with, ratchet 5 can make it can not encounter ratchet bar 7 toward pull-up by spring 8.
When ratchet bar 7 is in lower limit, ratchet bar 7 just can not encounter contact switch 10, will trigger contact switch 10 make it close when ratchet bar 7 moves up.Described electromagnet 9 is arranged between the sleeve 4 of ratchet structure and ratchet 5, electromagnet 9 will adsorb ratchet 5 after being energized, ratchet 5 can just be fitted with electromagnet 9, and ratchet 5 end will be stuck in the middle of the ratchet 71 of ratchet bar 7, and ratchet bar 7 can not be moved up.Contact switch 10 on four alighting gears, electromagnet 9 become ratchet control circuit with the battery 11 being arranged on four rotor wing unmanned aerial vehicle fuselages by wired in series.When 4 contact switches 10 all close, ratchet 5 control circuit is communicated with, and 4 electromagnet 9 will have magnetic and adsorb ratchet 5 makes ratchet bar 7 not move up.
The working process of the present embodiment is as follows, the ratchet control circuit see Fig. 5:
1, when four rotor wing unmanned aerial vehicles are in flight course, the ratchet bar 7 of four alighting gears is all in the lower limit of ratchet device sleeve 4, and now ratchet control circuit disconnects, electromagnet 9 without suction, ratchet 5 by the pulling force effect of spring away from ratchet bar 7.
2, the working process when four rotor wing unmanned aerial vehicles land on unfairness ground is as follows:
(1) when first three alighting gear lands, when 4th alighting gear not yet lands, the ratchet bar 7 of first three alighting gear respectively relative to sleeve 4 upward sliding to different height, thus make to be closed by three contact switches 101,102 and 103 in ratchet control circuit, a contact switch 104 is also had to be in off-state, because control circuit is circuit series, therefore control circuit is still in off state.
(2) when the 4th alighting gear lands, ratchet bar 7 upward sliding of the 4th alighting gear, thus last contact switch 104 is closed, so far four contact switches 10 all close, ratchet control circuit is connected, electromagnet 901,902,903 and 904 on four embodiments will have magnetic after powered up simultaneously, therefore the ratchet 5 of ferrous material will be adsorbed to and fit with electromagnet 9, ratchet 71, four ratchet bars 7 that ratchet 7 end blocks on ratchet bar 7 all will remain unchanged with the relative position of sleeve 4.Now four alighting gears all with earth surface, and unmanned aerial vehicle body keeps level.
After the ratchet bar 7 of (3) four alighting gears and the relative position of sleeve 4 remain unchanged, unmanned plane due to the effect of inertia can have certain effect to ground, at this moment the piston rod of bounce cylinder will shrink in cylinder, by this part stressed snubber, thus avoid unmanned plane and ground that hard collision occurs.
Claims (1)
1. a rotor wing unmanned aerial vehicle alighting gear, is characterized in that, comprises bounce cylinder, ratchet device and ratchet control circuit;
The external steering engine for unmanned plane outer cover in outer cover upper end of bounce cylinder, the outer cover lower end of bounce cylinder and the sleeve connection of ratchet device, ratchet structure is provided with sleeve, sleeve outer cover, ratchet bar, ratchet, ratchet pull back spring, sleeve there is ratchet bearing, ratchet bar slide rail is provided with in sleeve, contact switch is provided with in sleeve, sleeve outer cover and sleeve lower end are spirally connected, ratchet bar to stretch in sleeve and with ratchet bar slide rail bearing fit, ratchet bar lower end is provided with ratchet bar bearing, ratchet bar bearing is used for and earth surface, ratchet bar both sides are provided with rib, ratchet upper end and ratchet bearing hinged, ratchet lower end coordinates with the ratchet of ratchet bar, ratchet pull back spring one end is connected with ratchet bearing, the ratchet pull back spring other end is connected with ratchet,
Ratchet control circuit is provided with battery, contact switch and electromagnet; Battery is located in unmanned aerial vehicle body, and on contact switch sleeve lining, electromagnet is located between the sleeve of ratchet structure and ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301546.0U CN204623827U (en) | 2015-05-12 | 2015-05-12 | A kind of rotor wing unmanned aerial vehicle alighting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301546.0U CN204623827U (en) | 2015-05-12 | 2015-05-12 | A kind of rotor wing unmanned aerial vehicle alighting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204623827U true CN204623827U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520301546.0U Withdrawn - After Issue CN204623827U (en) | 2015-05-12 | 2015-05-12 | A kind of rotor wing unmanned aerial vehicle alighting gear |
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| CN (1) | CN204623827U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787309A (en) * | 2015-05-12 | 2015-07-22 | 厦门大学 | Landing gear of rotor unmanned aerial vehicle (UAV) |
| CN106184726A (en) * | 2016-07-06 | 2016-12-07 | 陈立 | A kind of Intelligent unattended machine based on Internet of Things searched and rescued for field |
| WO2017219295A1 (en) * | 2016-06-22 | 2017-12-28 | SZ DJI Technology Co., Ltd. | Systems and methods of aircraft walking systems |
| CN114590397A (en) * | 2022-04-18 | 2022-06-07 | 成都纵横大鹏无人机科技有限公司 | Undercarriage and unmanned aerial vehicle with adjustable |
-
2015
- 2015-05-12 CN CN201520301546.0U patent/CN204623827U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787309A (en) * | 2015-05-12 | 2015-07-22 | 厦门大学 | Landing gear of rotor unmanned aerial vehicle (UAV) |
| CN104787309B (en) * | 2015-05-12 | 2016-11-09 | 厦门大学 | Rotor wing unmanned aerial vehicle undercarriage |
| WO2017219295A1 (en) * | 2016-06-22 | 2017-12-28 | SZ DJI Technology Co., Ltd. | Systems and methods of aircraft walking systems |
| US11124292B2 (en) | 2016-06-22 | 2021-09-21 | SZ DJI Technology Co., Ltd. | Systems and methods of aircraft walking systems |
| CN106184726A (en) * | 2016-07-06 | 2016-12-07 | 陈立 | A kind of Intelligent unattended machine based on Internet of Things searched and rescued for field |
| CN106184726B (en) * | 2016-07-06 | 2018-11-23 | 山东龙翼航空科技有限公司 | A kind of Intelligent unattended machine based on Internet of Things searched and rescued for field |
| CN114590397A (en) * | 2022-04-18 | 2022-06-07 | 成都纵横大鹏无人机科技有限公司 | Undercarriage and unmanned aerial vehicle with adjustable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |