CN212890903U - Unmanned aerial vehicle undercarriage cabin door folding and unfolding system - Google Patents
Unmanned aerial vehicle undercarriage cabin door folding and unfolding system Download PDFInfo
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- CN212890903U CN212890903U CN202021637156.8U CN202021637156U CN212890903U CN 212890903 U CN212890903 U CN 212890903U CN 202021637156 U CN202021637156 U CN 202021637156U CN 212890903 U CN212890903 U CN 212890903U
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- pull rod
- aerial vehicle
- unmanned aerial
- landing gear
- hatch door
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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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Abstract
The utility model discloses an unmanned aerial vehicle undercarriage hatch door system that receive and releases belongs to unmanned aerial vehicle's technical field, including the hatch door with locate the hatch door swivel mount on this hatch door, still including articulating the long pull rod on the undercarriage, the one end of long pull rod articulates there is rocking arm and rocking arm to articulate on unmanned aerial vehicle's fuselage, and the other end of rocking arm articulates there is adjustable pull rod, and adjustable pull rod's the other end articulates there is ear ring bolt and ear ring bolt rotate connect in on the hatch door swivel mount to reach and guarantee that the undercarriage hatch door receive and releases along with the process of receiving and releasing of undercarriage is synchronous, guarantee the reliability that receives and releases of hatch door, reduce weight, practice thrift.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle, particularly, relate to an unmanned aerial vehicle undercarriage hatch door receive and releases system.
Background
The existing landing gear door is a key structure for keeping the aerodynamic shape of an airplane after the landing gear is retracted; the general cabin door driving device is opened and closed by an independent actuator, and the cabin door is closed after the landing gear is folded. However, such a separate hatch opening and closing system results in increased weight of the aircraft, reduced energy consumption, reduced system reliability and ultimately increased costs.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims to provide an unmanned aerial vehicle undercarriage hatch door receive and releases system in order to reach and guarantee that the undercarriage hatch door receives and releases along with the receiving and releasing process of undercarriage synchronous, guarantees the reliability of receiving and releasing of assurance hatch door, weight reduction practices thrift the purpose of flight cost.
The utility model discloses the technical scheme who adopts does: the utility model provides an unmanned aerial vehicle undercarriage hatch door receive and releases system, includes the hatch door and locates the hatch door swivel mount on this hatch door, still including articulating the long pull rod on the undercarriage, the one end of long pull rod articulates there is rocking arm and rocking arm to articulate on unmanned aerial vehicle's fuselage, and the other end of rocking arm articulates there is adjustable pull rod, the other end of adjustable pull rod articulate have earring bolt and earring bolt rotate connect in on the hatch door swivel mount.
Further, the rocking arm is set to "V" font structure, and the summit of this "V" font structure is equipped with the axle sleeve, articulates on unmanned aerial vehicle's fuselage through this axle sleeve, realizes the linkage motion between long pull rod and the regulation pull rod through this rocking arm.
Further, the adjustable pull rod comprises an upper pull rod and a lower pull rod, an inner threaded hole is formed in the lower pull rod, the inner threaded hole is in threaded connection with the upper pull rod, a locking nut is in threaded connection with the upper pull rod, the length of the adjustable pull rod is adjustable, and therefore the requirement for the step difference between the cabin door and the machine body is met.
Furthermore, the side of the upper pull rod is provided with a sliding groove along the axis direction, and the side of the upper pull rod further comprises a gasket sleeved on the upper pull rod, the inner side of the gasket is provided with a limit bump matched with the sliding groove, the gasket is pressed on the opening end surface of the lower pull rod through a locking nut and rotates between the gasket and the lower pull rod in a limiting manner, so that the relative rotation between the upper pull rod and the lower pull rod is avoided, and the connection stability between the upper pull rod and the lower pull rod is ensured.
Furthermore, a notch is formed in the opening end face of the lower pull rod, and a protrusion matched with the notch correspondingly is arranged on the side face of one side of the gasket, so that relative rotation between the upper pull rod and the lower pull rod is prevented.
Furthermore, the lug bolt comprises a lug hole and a screw rod, the lug hole is hinged to the lower pull rod, and the screw rod is rotatably assembled on the cabin door rotating seat to ensure that the lower pull rod can be linked with the cabin door to perform opening and closing movement.
Furthermore, the undercarriage is rotatably connected to the body of the unmanned aerial vehicle through an undercarriage rotating shaft, and the opening or the closing of the cabin door is linked through the movement of the undercarriage.
The utility model has the advantages that:
1. by adopting the cabin door retracting system of the unmanned aerial vehicle undercarriage provided by the utility model, the undercarriage does linkage movement and shares a power source with the undercarriage, so that the independent power source of the cabin door and the matched parts thereof are reduced, the reliability is improved, and the flight safety is ensured; and parts are reduced, the weight is further reduced, and the flying cost is saved.
2. Adopt the utility model provides an unmanned aerial vehicle undercarriage hatch door receive and releases system, receive and release the order with the undercarriage accurate reliable, traditional hatch door receive and releases, need a plurality of power supplies of simultaneous control, the time point of control and the time that lasts have the deviation slightly, can cause the interference of undercarriage and hatch door, and with the undercarriage linkage in this application, same power supply, the motion order is leaned on connecting rod length and joint point position to guarantee, moves accurate reliable.
3. Adopt the utility model provides an unmanned aerial vehicle undercarriage cabin door receive and releases system, its simple structure, ingenious, in use maintains conveniently, need not to dismantle parts such as power supply during the maintenance, has improved unmanned aerial vehicle's maintainability and has reduced the maintenance cost.
Drawings
Fig. 1 is a schematic structural view of a door retraction system of an unmanned aerial vehicle landing gear during opening of the door;
fig. 2 is a schematic structural view of an unmanned aerial vehicle landing gear door retraction system provided by the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
fig. 4 is a schematic structural view of the landing gear door retraction system of the unmanned aerial vehicle provided by the present invention when the door is fully opened;
fig. 5 is a schematic structural view of the door retraction system of the landing gear of the unmanned aerial vehicle provided by the present invention when the door is completely closed;
the drawings are labeled as follows:
the device comprises a long pull rod-1, a rocker arm-2, a rocker arm rotating shaft-3, an upper pull rod-4, a lower pull rod-5, an earring bolt-6, a locking nut-7, a gasket-8, a sliding groove-9, a bulge-10, a cabin door-11, an undercarriage-12 and a cabin door rotating seat-13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
The unmanned aerial vehicle comprises an undercarriage 12, a cabin door 11 and a cabin door rotating base 13 arranged on the cabin door 11, wherein the cabin door rotating base 13 is rotatably connected to the unmanned aerial vehicle body through a cabin door rotating shaft. The undercarriage 12 is rotatably connected to the body of the drone via an undercarriage shaft.
In order to ensure the retraction reliability of the door 11, reduce the weight and save the flight cost, the door 11 of the undercarriage 12 needs to be retracted and extended synchronously along with the retraction and extension process of the undercarriage 12, and the linkage motion between the door 11 and the undercarriage 12 is realized through the linkage mechanism of the door 11 of the undercarriage 12 of the unmanned aerial vehicle. As shown in fig. 2 and 3, the specific technical solution for the linkage mechanism is provided as follows:
still including articulating in the long pull rod 1 on undercarriage 12, the one end of long pull rod 1 articulates there is rocking arm 2 and rocking arm 2 articulates on unmanned aerial vehicle's fuselage, guarantees that whole mechanism can move along with undercarriage 12's rotation, and the other end of rocking arm 2 articulates there is adjustable pull rod, adjusts through the length of adjustable pull rod to guarantee that the step of hatch door 11 and fuselage satisfies the requirement, the other end of adjustable pull rod articulates there is earring bolt 6 and earring bolt 6 rotate connect in on hatch door swivel mount 13, guarantee that adjustable pull rod can all make rotary motion in two directions for hatch door swivel mount 13, with the final hatch door 11 that transmits undercarriage 12's motion.
Preferably, will rocking arm 2 establishes to "V" font structure, and the summit of this "V" font structure is equipped with the axle sleeve, articulates on unmanned aerial vehicle's fuselage through this axle sleeve, and the axle sleeve cover has rocking arm pivot 3, and rocking arm pivot 3 connects on unmanned aerial vehicle's fuselage. The lug ring bolt 6 comprises a lug ring hole and a screw rod, the lug ring hole and the screw rod are integrally formed, the lug ring hole is hinged on the lower pull rod 5, and the screw rod is rotatably assembled on the cabin door rotating seat 13.
As shown in fig. 1, 4 and 5, the working process is as follows:
during retraction of the door 11, the landing gear 12 rotates anticlockwise about the landing gear axis of rotation; the undercarriage 12 rotates to drive the long pull rod 1 to rotate, and the long pull rod 1 drives the rocker arm 2 to rotate clockwise around the rocker arm rotating shaft 3; the other end of the rocker arm 2 drives an upper pull rod 4 to move, and the upper pull rod 4 drives a lower pull rod 5 to move; the lower pull rod 5 drives the lug bolt 6 to move, and the lug bolt 6 drives the cabin door 11 of the undercarriage 12 to close around the cabin door rotating shaft;
the hatch 11 opening procedure is the reverse of the hatch 11 closing procedure and will not be described in detail here.
Example 2
On the basis of embodiment 1, in order to improve the stability and the operation convenience of the adjusting pull rod, as shown in fig. 3, the following design is adopted:
the adjustable pull rod comprises an upper pull rod 4 and a lower pull rod 5, wherein an internal thread hole is formed in the lower pull rod 5, the internal thread hole is in threaded connection with the upper pull rod 4, and the whole length can be adjusted to a proper value through threaded connection of the upper pull rod 4 and the lower pull rod 5.
When adjusted to a proper length, the locking is performed by a locking nut 7 screwed on the upper pull rod 4. Meanwhile, in order to prevent the relative rotation between the upper pull rod 4 and the lower pull rod 5, the side surface of the upper pull rod 4 is provided with two sliding grooves 9 along the axial direction thereof, and in this embodiment, the two sliding grooves 9 are symmetrical relative to the axis of the upper pull rod 4.
Still including the gasket 8 of cover on last pull rod 4, the inboard of gasket 8 be equipped with spout 9 assorted spacing lug, but gasket 8 is for last pull rod 4 free motion on the axis direction, but relative last pull rod 4 can not make rotational motion, gasket 8 compresses tightly on the opening terminal surface of pull rod 5 through lock nut 7, just is in the opening terminal surface of pull rod 5 is seted up jaggedly, and in this embodiment, the breach also is equipped with two and is symmetrical arrangement for the axis of pull rod 5 down, is equipped with the arch 10 that corresponds the matching with the breach on one side of gasket 8, after the arch 10 of gasket 8 imbeds to the breach that corresponds, realizes rotating spacing between gasket 8 and the pull rod 5.
In practical application, in order to ensure that the step difference between the cabin door 11 and the fuselage meets the requirement, the lock nut 7 is firstly loosened, and the gasket 8 is slid to cancel the rotation limit between the gasket 8 and the lower pull rod 5; then the upper pull rod 4 is rotated until the integral length formed by the upper pull rod 4 and the lower pull rod 5 meets the requirement, and the upper pull rod 4 is finely adjusted until the bulge 10 of the gasket 8 can be smoothly embedded into the gap of the lower pull rod 5; and finally, screwing the locking nut 7, and tightly abutting the gasket 8 on the opening end face of the lower pull rod 5 through the locking nut 7 to complete the length adjustment of the whole adjusting pull rod and ensure that the step difference between the cabin door 11 and the machine body meets the requirement.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (7)
1. The utility model provides an unmanned aerial vehicle undercarriage hatch door receive and releases system, includes the hatch door and locates the hatch door swivel mount on this hatch door, its characterized in that still includes to articulate the long pull rod on the undercarriage, and the one end of long pull rod articulates there is rocking arm and rocking arm to articulate on unmanned aerial vehicle's fuselage, and the other end of rocking arm articulates there is adjustable pull rod, and the other end of adjustable pull rod articulates there is earring bolt and earring bolt rotate connect in on the hatch door swivel mount.
2. The unmanned aerial vehicle landing gear door retraction system according to claim 1, wherein the rocker arm is configured as a "V" shaped structure, and a shaft sleeve is provided at the apex of the "V" shaped structure, and is hinged to the body of the unmanned aerial vehicle through the shaft sleeve.
3. The unmanned aerial vehicle landing gear door retraction system according to claim 1, wherein the adjustable tension rod comprises an upper tension rod and a lower tension rod, an internal thread hole is formed in the lower tension rod, the internal thread hole is in threaded connection with the upper tension rod, and a locking nut is in threaded connection with the upper tension rod.
4. The unmanned aerial vehicle landing gear door retraction system according to claim 3, wherein a sliding groove is formed in the side surface of the upper pull rod along the axial direction of the upper pull rod, the unmanned aerial vehicle landing gear door retraction system further comprises a gasket sleeved on the upper pull rod, a limiting bump matched with the sliding groove is arranged on the inner side of the gasket, the gasket is pressed on the opening end surface of the lower pull rod through a locking nut, and the rotation between the gasket and the lower pull rod is limited.
5. The unmanned aerial vehicle landing gear door retraction system according to claim 4, wherein the opening end face of the lower pull rod is provided with a notch, and a protrusion correspondingly matched with the notch is arranged on one side face of the gasket.
6. The unmanned aerial vehicle landing gear door retraction system according to claim 3, wherein the lug bolt comprises a lug hole and a screw, the lug hole is hinged to the lower pull rod, and the screw is rotatably mounted on the door swivel mount.
7. The unmanned aerial vehicle landing gear door retraction system according to claim 1, wherein the landing gear is rotatably connected to the fuselage of the unmanned aerial vehicle by a landing gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021637156.8U CN212890903U (en) | 2020-08-07 | 2020-08-07 | Unmanned aerial vehicle undercarriage cabin door folding and unfolding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021637156.8U CN212890903U (en) | 2020-08-07 | 2020-08-07 | Unmanned aerial vehicle undercarriage cabin door folding and unfolding system |
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| Publication Number | Publication Date |
|---|---|
| CN212890903U true CN212890903U (en) | 2021-04-06 |
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| CN202021637156.8U Active CN212890903U (en) | 2020-08-07 | 2020-08-07 | Unmanned aerial vehicle undercarriage cabin door folding and unfolding system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879538A (en) * | 2021-10-13 | 2022-01-04 | 北京机电工程研究所 | Bury formula folding lug mechanism and aircraft |
| CN114180073A (en) * | 2022-02-16 | 2022-03-15 | 四川腾盾科技有限公司 | Parachute opening mechanism and delay parachute opening method for pod of unmanned aerial vehicle |
| CN114368474A (en) * | 2022-01-17 | 2022-04-19 | 中国科学院工程热物理研究所 | Undercarriage cabin door sequential retraction linkage mechanism and linkage method |
| CN114802720A (en) * | 2022-02-18 | 2022-07-29 | 成都飞机工业（集团）有限责任公司 | Undercarriage guard plate linkage mechanism and machining method thereof |
-
2020
- 2020-08-07 CN CN202021637156.8U patent/CN212890903U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879538A (en) * | 2021-10-13 | 2022-01-04 | 北京机电工程研究所 | Bury formula folding lug mechanism and aircraft |
| CN113879538B (en) * | 2021-10-13 | 2023-07-14 | 北京机电工程研究所 | Buried folding lifting lug mechanism and aircraft |
| CN114368474A (en) * | 2022-01-17 | 2022-04-19 | 中国科学院工程热物理研究所 | Undercarriage cabin door sequential retraction linkage mechanism and linkage method |
| CN114368474B (en) * | 2022-01-17 | 2023-08-15 | 中国科学院工程热物理研究所 | Landing gear cabin door sequential retraction linkage mechanism and linkage method |
| CN114180073A (en) * | 2022-02-16 | 2022-03-15 | 四川腾盾科技有限公司 | Parachute opening mechanism and delay parachute opening method for pod of unmanned aerial vehicle |
| CN114180073B (en) * | 2022-02-16 | 2022-05-03 | 四川腾盾科技有限公司 | Parachute opening mechanism and delay parachute opening method for pod of unmanned aerial vehicle |
| CN114802720A (en) * | 2022-02-18 | 2022-07-29 | 成都飞机工业（集团）有限责任公司 | Undercarriage guard plate linkage mechanism and machining method thereof |
| CN114802720B (en) * | 2022-02-18 | 2024-06-11 | 成都飞机工业（集团）有限责任公司 | Landing gear guard plate linkage mechanism and processing method thereof |
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