CN112977866A - Ground transfer device for helicopter - Google Patents
Ground transfer device for helicopter Download PDFInfo
- Publication number
- CN112977866A CN112977866A CN202110446295.5A CN202110446295A CN112977866A CN 112977866 A CN112977866 A CN 112977866A CN 202110446295 A CN202110446295 A CN 202110446295A CN 112977866 A CN112977866 A CN 112977866A
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- handrail
- helicopter
- shaft
- supporting shaft
- pin
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- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/22—Ground or aircraft-carrier-deck installations for handling aircraft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The embodiment of the invention provides a ground transfer device of a helicopter, which comprises a walking component and a holding component, wherein the walking component comprises a walking wheel and a walking wheel; the handle is of a hook-shaped structure and is arranged on a skid pipe of a helicopter landing gear; the walking assembly comprises a handrail, a supporting shaft and two walking wheels; the supporting shaft is arranged between the two travelling wheels, the first end of the supporting shaft is connected with one travelling wheel, and the second end of the supporting shaft is connected with the other travelling wheel; one end of the handrail is a connecting end, the other end of the handrail is a free end, the connecting end is connected with the supporting shaft, and a hook capable of rotating along the axis of the handrail is arranged at the position, close to the free end, of the handrail; and the supporting shaft is provided with a gripping part for hooking the holding piece to enable the helicopter to leave the ground. The problem that after the helicopter that uses skid undercarriage falls, needs special trailer to drag and move, transport on the ground is inconvenient can be solved through this scheme.
Description
Technical Field
The invention relates to the technical field of equipment transportation, in particular to a ground transfer device for a helicopter.
Background
Helicopter landing gear is of a wide variety, such as wheel landing gear, float landing gear and skid landing gear, and the different types of landing gear each have different advantages and disadvantages.
The skid landing gear usually adopts an arched beam structure, and comprises two skid pipes arranged in parallel at intervals and an arched beam used for connecting the two skid pipes. The bow-shaped beams are at least two and are used for supporting the helicopter body. Because the skid type undercarriage has the advantages of simple structure, light weight, high reliability, difficult damage, good terrain adaptability and the like, the skid type undercarriage is widely used on light helicopters and unmanned helicopters.
However, after the existing helicopter using the skid landing gear falls down, a special trailer is needed to drag and move, and the helicopter is inconvenient to transport on the ground.
Disclosure of Invention
The embodiment of the invention aims to provide a ground transfer device for a helicopter, which is used for solving the problems that the existing helicopter using a skid landing gear needs a special trailer to drag and move after falling, and the transfer on the ground is inconvenient. The specific technical scheme is as follows:
the embodiment of the invention provides a ground transfer device of a helicopter, which comprises a walking component and a holding component, wherein the walking component is arranged on the ground; the handle is of a hook-shaped structure and is arranged on a skid pipe of a helicopter landing gear;
the walking assembly comprises a handrail, a supporting shaft and two walking wheels;
the supporting shaft is arranged between the two travelling wheels, the first end of the supporting shaft is connected with one travelling wheel, and the second end of the supporting shaft is connected with the other travelling wheel;
one end of the handrail is a connecting end, the other end of the handrail is a free end, the connecting end is connected with the supporting shaft, and a hook capable of rotating along the axis of the handrail is arranged at the position, close to the free end, of the handrail;
and the supporting shaft is provided with a gripping part for hooking the holding piece to enable the helicopter to leave the ground.
Optionally, the gripping part includes a first pin and two side plates arranged in parallel and at an interval;
the first end of the side plate is connected with the supporting shaft;
the first pin shaft is arranged at the second ends of the side plates, the first pin shaft is located between the two side plates, and the axis of the first pin shaft is perpendicular to the plane where the side plates are located.
Optionally, a second end of the side plate is provided with a first through hole, and two ends of the first pin shaft are respectively provided with mounting holes matched with the first through hole;
and a connecting pin penetrates through the first through hole and the mounting hole to connect the first pin shaft to the second end of the side plate.
Optionally, the grasping portion further comprises a second pin shaft, and the second pin shaft is fixedly arranged in the middle of the two side plates and located between the two side plates;
the connecting end of the handrail extends along the axis direction of the handrail to form an extending part, and the extending part is fixedly connected with the second pin shaft.
Optionally, the supporting shaft is sleeved with a shaft sleeve;
the first end of the side plate is fixedly connected with the shaft sleeve, and the plane of the side plate is perpendicular to the axis of the shaft sleeve;
the connecting end of the handrail is fixedly connected with the shaft sleeve and is connected with the supporting shaft through the shaft sleeve.
Optionally, the grab bar is sleeved with a stop ring for limiting the hook.
Optionally, the retaining ring is provided with a threaded through hole, and the retaining ring is fixed on the support shaft by installing a screw at the threaded through hole.
Optionally, the free end is provided with a grip for a human hand to hold.
Optionally, the handle comprises a U-shaped connection plate and an inverted L-shaped contact block;
the contact block is positioned at the opening of the connecting plate, threaded holes are formed in the two side faces of the contact block, a second through hole matched with the threaded holes is formed in the connecting plate, a screw penetrates through the second through hole, and the connecting plate and the contact block are fixedly connected through the threaded holes.
Optionally, the connecting plate is provided with a lightening hole.
The ground transfer device of the helicopter provided by the embodiment of the invention comprises a walking component and a holding component; the support shaft of the walking assembly is provided with the gripping part, the gripping part is of a hook-shaped structure and is installed on the skid pipe of the landing gear of the helicopter, the gripping part hooks the gripping part by pressing the handhold rod connected to the support shaft, so that the helicopter leaves the ground, and the walking assembly is connected with the skid pipe through the hook on the handhold rod, and then the helicopter can be conveniently dragged and moved. The device provided by the embodiment of the invention has a simple structure, is convenient to use, and can be used for very conveniently transporting the helicopter with the skid type landing gear on the ground without using a special trailer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a helicopter ground transfer device provided in an embodiment of the present invention applied to a helicopter skid landing gear;
FIG. 2 is an enlarged view of detail I of FIG. 1;
FIG. 3 is a schematic structural view of a travel assembly of the ground transfer device of the helicopter of FIG. 1;
FIG. 4 is an exploded view of the walking assembly of the ground transfer unit of the helicopter of FIG. 1;
fig. 5(a) -5 (c) are schematic diagrams illustrating the working process of the ground transfer device for a helicopter provided by the embodiment of the invention.
The reference numerals in the drawings are explained as follows:
01-arched beam, 02-skid pipe, 03-ground;
1-a walking component;
11-a travelling wheel;
12-a handrail, 121-a connecting end, 122-an extending part, 123-a free end, 124-a hook, 1241-a stop ring, 1242-a grip;
13-support shaft, 131-shaft sleeve;
14-grip, 141-first pin, 142-side plate; 143 — a second pin;
2-holding piece, 21-connecting plate, 211-lightening hole, 22-contact block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problems that a special trailer is required to drag and move after the existing helicopter using a skid type landing gear falls down, and the transfer on the ground is inconvenient, the embodiment of the invention provides a ground transfer device for a helicopter.
The embodiment of the invention provides a ground transfer device for a helicopter, which comprises a walking component and a holding component, wherein the walking component is arranged on the ground; the handle is of a hook-shaped structure and is arranged on a skid pipe of a helicopter landing gear;
the walking assembly comprises a handrail, a supporting shaft and two walking wheels;
the supporting shaft is arranged between the two travelling wheels, the first end of the supporting shaft is connected with one travelling wheel, and the second end of the supporting shaft is connected with the other travelling wheel;
one end of the handrail is a connecting end, the other end of the handrail is a free end, the connecting end is connected with the supporting shaft, and a hook capable of rotating along the axis of the handrail is arranged at the position, close to the free end, of the handrail;
and the supporting shaft is provided with a gripping part for hooking the holding piece to enable the helicopter to leave the ground.
Because the skid pipes of the helicopter landing gear are two, when the device is used, after the helicopter lands on the ground, the helicopter can be transferred by using the two helicopter ground transfer devices in a matched mode, wherein the two skid pipes of the helicopter landing gear are respectively provided with one helicopter ground transfer device.
The ground transfer device of the helicopter provided by the embodiment of the invention comprises a walking component and a holding component; the support shaft of the walking assembly is provided with the gripping part, the gripping part is of a hook-shaped structure and is installed on the skid pipe of the landing gear of the helicopter, the gripping part hooks the gripping part by pressing the handhold rod connected to the support shaft, so that the helicopter leaves the ground, and the walking assembly is connected with the skid pipe through the hook on the handhold rod, and then the helicopter can be conveniently dragged and moved. The device provided by the embodiment of the invention has a simple structure, is convenient to use, and can be used for very conveniently transporting the helicopter with the skid type landing gear on the ground without using a special trailer.
Optionally, the gripping part includes a first pin and two side plates arranged in parallel and at an interval;
the first end of the side plate is connected with the supporting shaft;
the first pin shaft is arranged at the second ends of the side plates, the first pin shaft is located between the two side plates, and the axis of the first pin shaft is perpendicular to the plane where the side plates are located.
The grip portion is configured to hook up the grip piece to separate the helicopter from the ground, and therefore, the configuration of the grip portion is not limited to the configuration in which the pin is provided between the both side plates, and may be configured in other configurations, for example, a hook-shaped mechanism.
Optionally, a second end of the side plate is provided with a first through hole, and two ends of the first pin shaft are respectively provided with mounting holes matched with the first through hole;
and a connecting pin penetrates through the first through hole and the mounting hole to connect the first pin shaft to the second end of the side plate.
It is understood that, in addition to the above-mentioned fixing of the first pin shaft to the side plate by the connecting pin, other fixing manners may be adopted, for example, the first pin shaft may be directly welded to the side plate; the specific connection manner is not limited thereto.
Optionally, in order to enhance the structural strength of the walking assembly in the helicopter ground transfer apparatus, the gripping portion further includes a second pin shaft, and the second pin shaft is fixedly disposed in the middle of the two side plates and located between the two side plates;
the connecting end of the handrail extends along the axis direction of the handrail to form an extending part, and the extending part is fixedly connected with the second pin shaft.
Optionally, in order to facilitate the assembly of the connection of the walking assembly in the ground transfer device of the helicopter, it is considered that the grip portion and the grab bar may be assembled into a member before being connected with the support shaft, and then the member is connected with the support shaft; therefore, the supporting shaft is sleeved with the shaft sleeve;
the first end of the side plate is fixedly connected with the shaft sleeve, and the plane of the side plate is perpendicular to the axis of the shaft sleeve;
the connecting end of the handrail is fixedly connected with the shaft sleeve and is connected with the supporting shaft through the shaft sleeve.
Optionally, in order to limit the hook on the handrail, a stop ring for limiting the hook is sleeved on the handrail. The baffle ring can be fixed on the handrail in a welding mode and the like, and can also be fixed on the handrail in a fixing mode with adjustable position.
Optionally, the retaining ring is provided with a threaded through hole, and the retaining ring is fixed on the support shaft by installing a screw at the threaded through hole.
Optionally, to facilitate gripping of the grab bar, the free end is provided with a grip for gripping by a human hand.
Optionally, the handle comprises a U-shaped connection plate and an inverted L-shaped contact block;
the contact block is positioned at the opening of the connecting plate, threaded holes are formed in the two side faces of the contact block, a second through hole matched with the threaded holes is formed in the connecting plate, a screw penetrates through the second through hole, and the connecting plate and the contact block are fixedly connected through the threaded holes. Of course, the structure of the holding member is not limited to this, and other structural members similar to a hook-shaped structure may be adopted as long as the gripping portion can hook up the holding member to separate the helicopter from the ground.
Optionally, in order to reduce the weight of the grip and the influence of the grip on the helicopter due to the addition of the grip to the skid tube of the landing gear, the connecting plate is provided with lightening holes.
In order to better understand the technical scheme of the invention, the ground transfer device for the helicopter provided by the embodiment of the invention is exemplarily described below with reference to the attached drawings. The structure shown by a dotted line in the figure is an undercarriage of a helicopter, and the undercarriage is an existing skid-type structure and comprises an arched beam 01 and a skid pipe 02; after the helicopter lands on the ground 03, the skid tubes 02 of the helicopter landing gear contact the ground 03.
As shown in fig. 1, the ground transfer device for a helicopter provided by the embodiment of the present invention includes a walking assembly 1 and a holding member 2; the holding piece 2 is of a hook-shaped structure and is arranged on a skid pipe 02 of a helicopter landing gear.
Referring to fig. 2, the holding piece 2 comprises a U-shaped connecting plate 21 provided with a lightening hole 211 and an inverted L-shaped contact block 22; the contact block 22 is located at an opening of the connecting plate 21, threaded holes are formed in two side faces of the contact block 22, a second through hole matched with the threaded holes is formed in the connecting plate 21, a screw penetrates through the second through hole, and the connecting plate 21 and the contact block 22 are fixedly connected through the threaded holes.
Referring to fig. 3 and 4, the walking assembly 1 includes a handrail 12, a support shaft 13, and two walking wheels 11; the supporting shaft 13 is sleeved with a shaft sleeve 131.
The supporting shaft 13 is arranged between the two walking wheels 11, the first end of the supporting shaft 13 is connected with one walking wheel 11 through a bearing, and the second end of the supporting shaft 13 is connected with the other walking wheel 11 through a bearing.
One end of the handrail 12 is a connecting end 121, and the other end is a free end 123, and the free end 123 is provided with a grip 1242 for a human hand to hold. The connecting end 121 is welded on the shaft sleeve 131 and is connected with the supporting shaft 13 through the shaft sleeve 131; a hook 124 which can rotate along the axis of the handrail 12 is arranged at the position of the handrail 12 close to the free end 123; the grab bar 12 is sleeved with a stop ring 1241 for limiting the hook 124. The baffle ring 1241 is provided with a threaded through hole, and the baffle ring 1241 is fixed on the support shaft 13 by installing a screw at the threaded through hole.
As shown in fig. 2 to 4, a grip 14 is provided on the sleeve 131 of the support shaft 13. The grasping portion 14 includes a first pin 141, a second pin 143, and two side plates 142 arranged in parallel and spaced apart. The first ends of the two side plates 142 are fixedly connected with the shaft sleeve 131, and the plane of the side plate 142 is perpendicular to the axis of the shaft sleeve 131. The first pin 141 is disposed at the second end of the side plate 142, the first pin 141 is located between the two side plates 142, and an axis of the first pin 141 is perpendicular to a plane where the side plates 142 are located. A second end of the side plate 142 is provided with a first through hole, and two ends of the first pin shaft 141 are respectively provided with mounting holes matched with the first through hole; the first pin 141 is coupled to the second end of the side plate 142 by a coupling pin passing through the first through hole and the mounting hole. The second pin 143 is fixedly disposed in the middle of the two side plates 142 and located between the two side plates 142. The connecting end 121 of the handrail 12 extends along the axial direction of the handrail to form an extending portion 122, and the extending portion 122 is fixedly connected with the second pin 143.
As shown in fig. 1, the ground transfer device for helicopters provided by the embodiment of the present invention is used in pairs, and the working process of the device is shown in fig. 5(a) -5 (c), specifically, by sliding the first pin 141 into the inverted L-shaped contact block 22, pressing the handrail 12 downwards, hooking the grip part 14 on the support shaft 13 by the handrail 12 to the grip part 2, and then hanging the hook 124 on the skid tube 02 of the landing gear of the helicopter, the helicopter can be stably separated from the ground 03, thereby realizing the transfer of the helicopter.
The ground transfer device of the helicopter provided by the embodiment of the invention comprises a walking component and a holding component; the support shaft of the walking assembly is provided with the gripping part, the gripping part is of a hook-shaped structure and is installed on the skid pipe of the landing gear of the helicopter, the gripping part hooks the gripping part by pressing the handhold rod connected to the support shaft, so that the helicopter leaves the ground, and the walking assembly is connected with the skid pipe through the hook on the handhold rod, and then the helicopter can be conveniently dragged and moved. The device provided by the embodiment of the invention has a simple structure, is convenient to use, and can be used for very conveniently transporting the helicopter with the skid type landing gear on the ground without using a special trailer.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A ground transfer device of a helicopter is characterized by comprising a walking assembly (1) and a holding piece (2); the holding piece (2) is of a hook-shaped structure and is arranged on a skid pipe (02) of a helicopter landing gear;
the walking assembly (1) comprises a handrail (12), a supporting shaft (13) and two walking wheels (11);
the supporting shaft (13) is arranged between the two walking wheels (11), the first end of the supporting shaft (13) is connected with one walking wheel (11), and the second end of the supporting shaft (13) is connected with the other walking wheel (11);
one end of the handrail (12) is a connecting end (121), the other end of the handrail is a free end (123), the connecting end (121) is connected with the supporting shaft (13), and a hook (124) which can rotate along the axis of the handrail (12) is arranged at the position, close to the free end (123), of the handrail (12);
the supporting shaft (13) is provided with a gripping part (14) used for hooking the gripping part (2) to enable the helicopter to be separated from the ground.
2. The device according to claim 1, wherein the grip portion (14) comprises a first pin (141) and two parallel and spaced side plates (142);
the first end of the side plate (142) is connected with the supporting shaft (13);
the first pin shaft (141) is arranged at the second end of the side plate (142), the first pin shaft (141) is located between the two side plates (142), and the axis of the first pin shaft (141) is perpendicular to the plane of the side plates (142).
3. The device as claimed in claim 2, wherein the second end of the side plate (142) is provided with a first through hole, and two ends of the first pin shaft (141) are respectively provided with mounting holes matched with the first through hole;
and the first pin shaft (141) is connected to the second end of the side plate (142) by a connecting pin penetrating through the first through hole and the mounting hole.
4. The device according to claim 2, wherein the grip portion (14) further comprises a second pin (143), the second pin (143) being fixedly disposed in the middle of the two side plates (142) and between the two side plates (142);
the connecting end (121) of the handrail (12) extends along the axis direction of the handrail to form an extending part (122), and the extending part (122) is fixedly connected with the second pin shaft (143).
5. The device according to claim 2, characterized in that the supporting shaft (13) is sleeved with a bushing (131);
the first end of the side plate (142) is fixedly connected with the shaft sleeve (131), and the plane of the side plate (142) is perpendicular to the axis of the shaft sleeve (131);
the connecting end (121) of the handrail (12) is fixedly connected with the shaft sleeve (131) and is connected with the supporting shaft (13) through the shaft sleeve (131).
6. The device according to claim 1, characterized in that the grab bar (12) is sleeved with a stop ring (1241) for limiting the hook (124).
7. The device according to claim 6, characterized in that the stop ring (1241) is provided with a threaded through hole, and the stop ring (1241) is fixed on the support shaft (13) by mounting a screw at the threaded through hole.
8. The device according to claim 1, characterized in that the free end (123) is provided with a grip (1242) for gripping by a human hand.
9. The device according to any one of claims 1 to 8, characterized in that the grip (2) comprises a U-shaped connection plate (21) and an inverted L-shaped contact block (22);
the contact block (22) is located at an opening of the connecting plate (21), threaded holes are formed in two side faces of the contact block (22), a second through hole matched with the threaded holes is formed in the connecting plate (21), a screw penetrates through the second through hole, and the connecting plate (21) is fixedly connected with the contact block (22) through the threaded holes.
10. Device according to claim 9, characterized in that said connection plate (21) is provided with lightening holes (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446295.5A CN112977866A (en) | 2021-04-25 | 2021-04-25 | Ground transfer device for helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446295.5A CN112977866A (en) | 2021-04-25 | 2021-04-25 | Ground transfer device for helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112977866A true CN112977866A (en) | 2021-06-18 |
Family
ID=76340081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110446295.5A Pending CN112977866A (en) | 2021-04-25 | 2021-04-25 | Ground transfer device for helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112977866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248913A (en) * | 2022-03-01 | 2022-03-29 | 北京中航智科技有限公司 | Skid type undercarriage of unmanned helicopter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603869A (en) * | 1984-11-13 | 1986-08-05 | Maxwell Eugene O | Helicopter ground handling wheel assembly |
| JP5362476B2 (en) * | 2009-08-04 | 2013-12-11 | ヤンマー株式会社 | cart |
| CN204415744U (en) * | 2014-12-19 | 2015-06-24 | 四川精石航空科技开发有限公司 | A kind of microlight-type helicopter special transport wheel |
| CN107284688A (en) * | 2017-06-29 | 2017-10-24 | 飞智控（天津）科技有限公司 | Two-wheel helicopter transport wheel, conveying arrangement and transportation resources |
| CN109665115A (en) * | 2018-12-29 | 2019-04-23 | 飞智控（天津）科技有限公司 | Helicopter transport system and transportation resources |
| US20190135451A1 (en) * | 2017-11-08 | 2019-05-09 | Albert V. Coccaro | Helicopter Dolly |
| CN111516894A (en) * | 2020-04-30 | 2020-08-11 | 庆安集团有限公司 | Light skid type helicopter ground moving device and using method thereof |
| CN212149337U (en) * | 2020-05-12 | 2020-12-15 | 江西通航科技协同创新有限公司 | Novel tractor wheel structure |
| CN212605885U (en) * | 2020-06-05 | 2021-02-26 | 北京京东乾石科技有限公司 | Handling device and unmanned aerial vehicle |
-
2021
- 2021-04-25 CN CN202110446295.5A patent/CN112977866A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603869A (en) * | 1984-11-13 | 1986-08-05 | Maxwell Eugene O | Helicopter ground handling wheel assembly |
| JP5362476B2 (en) * | 2009-08-04 | 2013-12-11 | ヤンマー株式会社 | cart |
| CN204415744U (en) * | 2014-12-19 | 2015-06-24 | 四川精石航空科技开发有限公司 | A kind of microlight-type helicopter special transport wheel |
| CN107284688A (en) * | 2017-06-29 | 2017-10-24 | 飞智控（天津）科技有限公司 | Two-wheel helicopter transport wheel, conveying arrangement and transportation resources |
| US20190135451A1 (en) * | 2017-11-08 | 2019-05-09 | Albert V. Coccaro | Helicopter Dolly |
| CN109665115A (en) * | 2018-12-29 | 2019-04-23 | 飞智控（天津）科技有限公司 | Helicopter transport system and transportation resources |
| CN111516894A (en) * | 2020-04-30 | 2020-08-11 | 庆安集团有限公司 | Light skid type helicopter ground moving device and using method thereof |
| CN212149337U (en) * | 2020-05-12 | 2020-12-15 | 江西通航科技协同创新有限公司 | Novel tractor wheel structure |
| CN212605885U (en) * | 2020-06-05 | 2021-02-26 | 北京京东乾石科技有限公司 | Handling device and unmanned aerial vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248913A (en) * | 2022-03-01 | 2022-03-29 | 北京中航智科技有限公司 | Skid type undercarriage of unmanned helicopter |
| CN114248913B (en) * | 2022-03-01 | 2022-05-17 | 北京中航智科技有限公司 | Skid type undercarriage of unmanned helicopter |
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Application publication date: 20210618 |