CN113371179A - Pneumatic reverse-pushing type undercarriage for unmanned aerial vehicle and using method thereof - Google Patents
Pneumatic reverse-pushing type undercarriage for unmanned aerial vehicle and using method thereof Download PDFInfo
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- CN113371179A CN113371179A CN202110580203.2A CN202110580203A CN113371179A CN 113371179 A CN113371179 A CN 113371179A CN 202110580203 A CN202110580203 A CN 202110580203A CN 113371179 A CN113371179 A CN 113371179A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/06—Undercarriages fixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C15/00—Attitude, flight direction, or altitude control by jet reaction
- B64C15/14—Attitude, flight direction, or altitude control by jet reaction the jets being other than main propulsion jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U70/00—Launching, take-off or landing arrangements
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Abstract
The invention discloses a pneumatic reverse-push undercarriage for an unmanned aerial vehicle and a using method thereof, belonging to the field of unmanned aerial vehicles, the pneumatic reverse-push undercarriage for the unmanned aerial vehicle and the using method thereof comprise a bearing bottom plate fixedly arranged at the lower end of an unmanned aerial vehicle body, a plurality of driving structures are arranged at the upper end of the bearing bottom plate, a visual structure is arranged at the front end of the bearing bottom plate, a pneumatic reverse-push assembly is arranged at the lower end of the bearing bottom plate, a pneumatic reverse-push buffering assembly is arranged at the lower end of the reverse-push undercarriage assembly, the pneumatic reverse-push buffering assembly is matched with the pneumatic reverse-push buffering assembly, when the unmanned aerial vehicle body with goods and materials descends, the pneumatic reverse-push buffering assembly blows to the ground, reverse thrust is effectively realized, the inertia of the unmanned aerial vehicle body is buffered, the impact force of the descending of the unmanned aerial vehicle body is reduced, the descending stability of the unmanned aerial vehicle body is improved, and the protection of the unmanned aerial vehicle body with goods and materials is effectively realized, the functionality of the thrust reverser landing gear assembly is improved.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicles, in particular to a pneumatic reverse-pushing type undercarriage for an unmanned aerial vehicle and a using method thereof.
Background
An unmanned aerial vehicle, abbreviated as "unmanned aerial vehicle" ("UAV"), is an unmanned aerial vehicle that is operated using a radio remote control device and a self-contained program control device. Unmanned aerial vehicles are in fact a general term for unmanned aerial vehicles, and can be defined from a technical perspective as follows: unmanned fixed wing aircraft, unmanned VTOL aircraft, unmanned airship, unmanned helicopter, unmanned multi-rotor aircraft, unmanned paravane, etc. The unmanned aerial vehicle is widely applied to civil convenience, is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, electric power inspection, disaster relief, movie and television shooting, romantic manufacturing and the like at present, greatly expands the application of the unmanned aerial vehicle, and is also applied to the active expansion of industry and the development of unmanned aerial vehicle technology in developed countries.
Civil unmanned aerial vehicle main organism, wing, battery, controller and undercarriage are constituteed, and unmanned aerial vehicle's undercarriage mainly plays the supporting role to unmanned aerial vehicle to some undercarriage bottoms adopt elastic material to make, can play certain inertia slow effect when unmanned aerial vehicle descends, and the undercarriage can effectually protect unmanned aerial vehicle as the auxiliary member.
To being applied to the unmanned aerial vehicle of goods and materials rescue and goods and materials transportation, when using unmanned aerial vehicle to carry out goods and materials transportation, because the weight of goods and materials has increased unmanned aerial vehicle's total weight, make the inertia increase of the unmanned aerial vehicle of transportation goods and materials when descending, and then make the unmanned aerial vehicle of transportation goods and materials receive great impact force when descending, easily cause the damage to unmanned aerial vehicle, reduce its life, but undercarriage among the prior art can not effectively carry out good protection to the unmanned aerial vehicle of goods and materials transportation, and is functional relatively poor.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a pneumatic reverse-pushing type undercarriage for an unmanned aerial vehicle and a using method thereof, the pneumatic reverse-pushing type undercarriage can be matched with a pneumatic reverse-pushing type buffer assembly by arranging the pneumatic reverse-pushing type buffer assembly at the lower end of a bearing bottom plate, when the unmanned aerial vehicle body with materials descends, the pneumatic reverse-pushing type buffer assembly blows air to the ground, reverse thrust is effectively realized, inertia of the unmanned aerial vehicle body is buffered, the descending impact force of the unmanned aerial vehicle body is reduced, the descending stability of the unmanned aerial vehicle body is improved, the unmanned aerial vehicle body with materials is effectively protected, the functionality of the reverse-pushing type undercarriage assembly is improved, and when the unmanned aerial vehicle body with materials takes off, the pneumatic reverse thrust is used, the ascending power of the unmanned aerial vehicle body can be effectively increased, reduce because the damage that the overweight caused to the drive structure of unmanned aerial vehicle body, improve the life of unmanned aerial vehicle body.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A pneumatic reverse-pushing type undercarriage for an unmanned aerial vehicle comprises a bearing bottom plate fixedly mounted at the lower end of an unmanned aerial vehicle body, wherein a plurality of driving structures are mounted at the upper end of the bearing bottom plate, a visual structure is mounted at the front end of the bearing bottom plate, an empennage structure is mounted at the rear end of the bearing bottom plate, a group of reverse-pushing landing gear assemblies are connected to the left end and the right end of the bearing bottom plate respectively, a pneumatic reverse-pushing assembly is mounted at the lower end of the bearing bottom plate and located between the two groups of reverse-pushing landing gear assemblies, a pneumatic reverse-pushing type buffering assembly is connected to the lower end of the reverse-pushing landing gear assembly, and the pneumatic reverse-pushing assembly is communicated with the pneumatic reverse-pushing type buffering assembly through the reverse-pushing landing gear assemblies;
the reverse thrust undercarriage component comprises a hoist connecting head, the lower end of the bearing bottom plate is in threaded connection with four hoist connecting heads, the hoist connecting heads are positioned at four corners of the bearing bottom plate, the lower end of the hoist connecting heads is fixedly connected with a reverse thrust supporting curved bar, and the lower end of the reverse thrust supporting curved bar is fixedly connected with an arc-shaped clamping block;
the pneumatic reverse-pushing type buffer assembly comprises a gas receiving column, the lower end of the arc-shaped clamping block is fixedly connected with the gas receiving column, a gas distributing pipe communicated with the gas receiving column is fixedly connected between the gas receiving columns in the same group, the outer end of the gas distributing pipe is fixedly connected with a rubber buffer column communicated with the gas distributing pipe, and a plurality of reverse-pushing air holes are formed in the lower end of the rubber buffer column. Through set up the air-blowing backstepping subassembly at the bottom plate lower extreme that bears, set up pneumatic backstepping buffer assembly at backstepping undercarriage subassembly lower extreme, make air-blowing backstepping subassembly and pneumatic backstepping buffer assembly cooperate, when the unmanned aerial vehicle body that has goods and materials descends, make pneumatic backstepping buffer assembly blow to ground, effectively realize thrust, cushion the inertia to the unmanned aerial vehicle body, reduce the impact force that the unmanned aerial vehicle body descends, improve the stationarity that the unmanned aerial vehicle body descends, effectively realize protecting the unmanned aerial vehicle body that has goods and materials, improve the functionality of backstepping undercarriage subassembly, and when the unmanned aerial vehicle body that has goods and materials takes off, use pneumatic thrust, can effectively increase the rising power of unmanned aerial vehicle body, reduce because the damage that unmanned aerial vehicle body overweight caused drive structure, improve the life of unmanned aerial vehicle body.
Further, the air blowing reverse-pushing assembly comprises an air blowing shell, the lower end of the bearing bottom plate is fixedly connected with the air blowing shell, an air blower is fixedly mounted on the upper inner wall of the air blowing shell, the lower end of the air blowing shell is fixedly connected with a reverse-pushing air collecting box communicated with the air blowing shell, and the outer end of the reverse-pushing air collecting box is fixedly connected with four branch air pipes communicated with the air blowing shell. The air-blower is collected the outside air, and carry in to the reverse thrust wind collection box, make the branch trachea lead to pneumatic reverse thrust formula buffering subassembly respectively with the control in the reverse thrust wind collection box, and then provide effectual reverse thrust for pneumatic reverse thrust formula buffering subassembly, effective supplementary unmanned aerial vehicle body that has the goods and materials rises and falls, and the rotational speed through the control air-blower, can effectively adjust the size that pneumatic reverse thrust formula buffering subassembly produced reverse reasoning, improve the reasonable assistance of pneumatic reverse thrust formula buffering subassembly to the unmanned aerial vehicle body, increase the smooth degree of rising and falling of unmanned aerial vehicle body.
Furthermore, a plurality of air inlet holes which are distributed circumferentially are formed in the outer end of the air blowing shell, and the air inlet holes are matched with the air blower. The air-blower passes through the fresh air inlet and absorbs outside air, and the blast air shell effectively shelters from great impurity entering inside in the external environment, makes it pollute the air-blower, causes the harm of air-blower.
Furthermore, a ventilation cavity is formed in the reverse-thrust support curved rod, and the outer ends of the four branch air pipes are respectively fixedly connected with the corresponding reverse-thrust support curved rods and communicated with the ventilation cavity. The air in the branch air pipe will reverse-push the collection wind box lets in the intracavity of ventilating of reverse-push support curved bar, supports the curved bar through reverse-push and realizes the switch-on of branch air pipe and rubber cushion post, reduces the use amount of branch air pipe, reduces the use amount of unmanned aerial vehicle body lower extreme space, reduces the dead weight of unmanned aerial vehicle body, reduces because the energy loss that the dead weight produced, improves the efficiency that the energy was used, and it is long when the use of increase unmanned aerial vehicle body battery.
Furthermore, the upper end of the air collecting column is fixedly connected with an air collecting pipe communicated with the air collecting column, the upper end of the air collecting pipe penetrates through the arc-shaped clamping block and extends into the reverse-pushing supporting curved rod, and the air collecting pipe is communicated with the ventilation cavity. Receive trachea and reverse thrust support curved bar switch-on, effectively make the air admission receive the gas post in, make and receive the gas post and let in the air in to rubber buffering post through the gas-distributing pipe, make rubber buffering post lower extreme blow up to ground through the reverse thrust gas pocket, effectively realize the reverse promotion to the unmanned aerial vehicle body, cushion the inertial force of unmanned aerial vehicle body, reduce the inertial force of unmanned aerial vehicle body, improve the life of unmanned aerial vehicle body.
Furthermore, four fixedly connected with transportation connecting plate between the reverse thrust support bent lever, and the transportation connecting plate is located under the subassembly is pushed back in the drum gas. Through setting up the transportation connecting plate, make the unmanned aerial vehicle body when can using the transportation connecting plate to connect the goods and materials that need the transportation, the transportation connecting plate can effectively completely cut off goods and materials and the subassembly is pushed away in the air-blowing, effectively avoids colliding with of the production of the subassembly is pushed away in the air-blowing when loading and unloading goods and materials, effectively guarantees the validity of the undercarriage of pushing away.
Further, fixed mounting has the atmospheric pressure expander in the backstepping gas pocket, the atmospheric pressure expander is including the toper intake pipe, toper intake pipe upper end and rubber buffer post switch-on mutually, toper intake pipe lower extreme fixedly connected with peach shape forcing pipe, peach shape forcing pipe lower extreme fixedly connected with pressurization outlet duct, and pressurization outlet duct lower extreme extends to the rubber buffer post outside. Through at the internal installation atmospheric pressure expander of backstepping gas pocket, make the atmospheric pressure expander pressurize the gas that blows up, supplementary drum gas backstepping subassembly produces the effect, and increase reverse driving force makes the unmanned aerial vehicle body when transporting heavier goods and materials, can effectively rise and fall through the supplementary unmanned aerial vehicle body of reverse driving force, increases the application range of unmanned aerial vehicle body transportation.
Furthermore, the inner diameter D1 of the connection part of the upper end of the peach-shaped pressurizing pipe and the conical air inlet pipe is 0.6-0.8 times of the maximum inner diameter D2 of the peach-shaped pressurizing pipe, and the inner diameter D3 of the pressurizing air outlet pipe is 0.1-0.3 times of the maximum inner diameter D2 of the peach-shaped pressurizing pipe. Through the diameter restriction everywhere to the atmospheric pressure expander for the air is after getting into the toper intake pipe, once pressurizes through peach shape forcing pipe, and rethread pressurization outlet duct carries out the secondary pressurization, and through the pressurized mode increase direction driving force of physics, the input of reduction power supply.
Further, rubber buffering post lower extreme is connected with a plurality of horizontal balance subassemblies, horizontal balance subassembly is including balanced bulb, a plurality of ball grooves have been seted up to rubber buffering post lower extreme, ball inslot rotation is connected with balanced bulb, balanced bulb lower extreme passes through connecting rod fixedly connected with cambered surface balancing plate, the inner arc diameter of cambered surface balancing plate is 3 times of rubber buffering post excircle diameter at least. Through setting up horizontal balance subassembly at rubber buffering post lower extreme, when making the unmanned aerial vehicle body descend to the road surface of unevenness, balanced bulb and cambered surface balance plate cooperation can the strong point regulate and control, effectively guarantees the stability of unmanned aerial vehicle body, reduces the probability that the unmanned aerial vehicle body emptys.
In addition, the invention also discloses a using method of the pneumatic reverse-pushing type undercarriage for the unmanned aerial vehicle, which comprises the following steps:
s1, replacing an undercarriage for an unmanned aerial vehicle body through bolts when the unmanned aerial vehicle body is required to carry substances;
s2, when a remote control person controls the unmanned aerial vehicle body with materials to take off, starting the driving structure and simultaneously starting the air blowing reverse thrust assembly;
s3, the air blowing reverse-pushing assembly introduces a large amount of air into the pneumatic reverse-pushing type buffer assembly through the reverse-pushing landing gear assembly, so that the pneumatic reverse-pushing type buffer assembly blows air to the ground, the unmanned aerial vehicle is pushed reversely, and the unmanned aerial vehicle is assisted to take off;
s4, after the unmanned aerial vehicle body successfully takes off, a remote control worker closes the air blowing reverse thrust assembly, and controls the driving structure and the tail wing structure to carry out flight control on the unmanned aerial vehicle body;
s5, after judging that the unmanned aerial vehicle body reaches a specified place through feedback of the visual structure, the remote control personnel control the driving structure to enable the unmanned aerial vehicle body to land;
s6, after the unmanned aerial vehicle body is away from the ground to a landing distance, a remote control person starts the air blowing reverse-pushing assembly, so that a large amount of air is introduced into the pneumatic reverse-pushing type buffer assembly through the reverse-pushing undercarriage assembly, the pneumatic reverse-pushing type buffer assembly blows air to the ground, the unmanned aerial vehicle is pushed reversely, inertia of the unmanned aerial vehicle body is buffered, and the unmanned aerial vehicle body is assisted to land;
s7, after the unmanned aerial vehicle body descends, the driving structure and the air-blowing reverse thrust assembly are closed. Through making the calabash even head and bearing bottom plate threaded connection, be convenient for ordinary undercarriage and reverse-pushing undercarriage are changed to the unmanned aerial vehicle body, make the unmanned aerial vehicle body can regard as detecting unmanned aerial vehicle to use when not transporting goods and materials, reduce the energy loss of unmanned aerial vehicle body when surveying time measuring, effectively increase the functionality of unmanned aerial vehicle body, improve the utilization ratio of unmanned aerial vehicle body, and through using reverse-pushing undercarriage, make drum gas reverse-pushing subassembly and pneumatic reverse-pushing buffer assembly mutually support, effectively realize the protection to the unmanned aerial vehicle body, reduce the damage that great inertial force caused the unmanned aerial vehicle body.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme is that the lower end of the bearing bottom plate is provided with the air-blowing reverse-pushing component, the lower end of the reverse-pushing undercarriage component is provided with the pneumatic reverse-pushing buffer component, so that the air-blowing reverse-pushing component is matched with the pneumatic reverse-pushing buffer component, when the unmanned aerial vehicle body with materials lands, the pneumatic reverse-pushing type buffer assembly blows air to the ground, reverse thrust is effectively realized, the inertia of the unmanned aerial vehicle body is buffered, the impact force of the landing of the unmanned aerial vehicle body is reduced, the landing stability of the unmanned aerial vehicle body is improved, the unmanned aerial vehicle body with materials is effectively protected, the functionality of the thrust landing gear component is improved, and when the unmanned aerial vehicle body that has the goods and materials takes off, use pneumatic reverse thrust, can effectively increase the power that rises of unmanned aerial vehicle body, reduce because the damage that the unmanned aerial vehicle body overweight caused to the drive structure, improve the life of unmanned aerial vehicle body.
(2) The air-blower is collected the outside air, and carry in to the reverse thrust wind collection box, make the branch trachea lead to pneumatic reverse thrust formula buffering subassembly respectively with the control in the reverse thrust wind collection box, and then provide effectual reverse thrust for pneumatic reverse thrust formula buffering subassembly, effective supplementary unmanned aerial vehicle body that has the goods and materials rises and falls, and the rotational speed through the control air-blower, can effectively adjust the size that pneumatic reverse thrust formula buffering subassembly produced reverse reasoning, improve the reasonable assistance of pneumatic reverse thrust formula buffering subassembly to the unmanned aerial vehicle body, increase the smooth degree of rising and falling of unmanned aerial vehicle body.
(3) The air-blower passes through the fresh air inlet and absorbs outside air, and the blast air shell effectively shelters from great impurity entering inside in the external environment, makes it pollute the air-blower, causes the harm of air-blower.
(4) The air in the branch air pipe will reverse-push the collection wind box lets in the intracavity of ventilating of reverse-push support curved bar, supports the curved bar through reverse-push and realizes the switch-on of branch air pipe and rubber cushion post, reduces the use amount of branch air pipe, reduces the use amount of unmanned aerial vehicle body lower extreme space, reduces the dead weight of unmanned aerial vehicle body, reduces because the energy loss that the dead weight produced, improves the efficiency that the energy was used, and it is long when the use of increase unmanned aerial vehicle body battery.
(5) Receive trachea and reverse thrust support curved bar switch-on, effectively make the air admission receive the gas post in, make and receive the gas post and let in the air in to rubber buffering post through the gas-distributing pipe, make rubber buffering post lower extreme blow up to ground through the reverse thrust gas pocket, effectively realize the reverse promotion to the unmanned aerial vehicle body, cushion the inertial force of unmanned aerial vehicle body, reduce the inertial force of unmanned aerial vehicle body, improve the life of unmanned aerial vehicle body.
(6) Through setting up the transportation connecting plate, make the unmanned aerial vehicle body when can using the transportation connecting plate to connect the goods and materials that need the transportation, the transportation connecting plate can effectively completely cut off goods and materials and the subassembly is pushed away in the air-blowing, effectively avoids colliding with of the production of the subassembly is pushed away in the air-blowing when loading and unloading goods and materials, effectively guarantees the validity of the undercarriage of pushing away.
(7) Through at the internal installation atmospheric pressure expander of backstepping gas pocket, make the atmospheric pressure expander pressurize the gas that blows up, supplementary drum gas backstepping subassembly produces the effect, and increase reverse driving force makes the unmanned aerial vehicle body when transporting heavier goods and materials, can effectively rise and fall through the supplementary unmanned aerial vehicle body of reverse driving force, increases the application range of unmanned aerial vehicle body transportation.
(8) Through the diameter restriction everywhere to the atmospheric pressure expander for the air is after getting into the toper intake pipe, once pressurizes through peach shape forcing pipe, and rethread pressurization outlet duct carries out the secondary pressurization, and through the pressurized mode increase direction driving force of physics, the input of reduction power supply.
(9) Through setting up horizontal balance subassembly at rubber buffering post lower extreme, when making the unmanned aerial vehicle body descend to the road surface of unevenness, balanced bulb and cambered surface balance plate cooperation can the strong point regulate and control, effectively guarantees the stability of unmanned aerial vehicle body, reduces the probability that the unmanned aerial vehicle body emptys.
(10) Through making the calabash even head and bearing bottom plate threaded connection, be convenient for ordinary undercarriage and reverse-pushing undercarriage are changed to the unmanned aerial vehicle body, make the unmanned aerial vehicle body can regard as detecting unmanned aerial vehicle to use when not transporting goods and materials, reduce the energy loss of unmanned aerial vehicle body when surveying time measuring, effectively increase the functionality of unmanned aerial vehicle body, improve the utilization ratio of unmanned aerial vehicle body, and through using reverse-pushing undercarriage, make drum gas reverse-pushing subassembly and pneumatic reverse-pushing buffer assembly mutually support, effectively realize the protection to the unmanned aerial vehicle body, reduce the damage that great inertial force caused the unmanned aerial vehicle body.
Drawings
FIG. 1 is a schematic illustration of a cooperating explosive structure of a thrust reverser landing gear assembly and a pneumatic thrust reverser bumper assembly of the present invention;
FIG. 2 is a schematic view of the flow structure of the method of the present invention;
FIG. 3 is a schematic bottom view of the present invention;
FIG. 4 is a schematic view of a principal boresight configuration of the present invention;
FIG. 5 is a schematic view of the axle-measuring structure of the combination of the thrust reverser landing gear assembly and the pneumatic thrust reverser assembly of the present invention;
FIG. 6 is a schematic top view of the present invention;
FIG. 7 is a schematic axial sectional view of the air-blowing thrust reverser assembly of the present invention;
FIG. 8 is a schematic diagram of an axonometric configuration of the thrust reverser landing gear assembly of the present invention;
FIG. 9 is a schematic axial view of the pneumatic reverse-thrust buffer assembly of the present invention;
FIG. 10 is a schematic diagram of a half-section exploded structure of the pneumatic reverse-push type buffer assembly of the present invention;
FIG. 11 is a schematic axial view of the air pressure amplifier of the present invention;
FIG. 12 is a schematic cross-sectional view of the air pressure amplifier of the present invention;
FIG. 13 is a schematic bottom view of a prior art landing gear according to the present invention.
The reference numbers in the figures illustrate:
the unmanned aerial vehicle comprises an unmanned aerial vehicle body 1, 101 bearing bottom plate, 102 drive structure, 103 visual structure, 104 fin structure, 2 thrust reverser assembly, 201 transportation connecting plate, 202 calabash is even, 203 thrust reverser support curved bar, 204 arc clamp splice, 3 air-blowing thrust assembly, 301 air-blowing shell, 302 thrust reverser wind-collecting box, 303 air-blower, 304 branch trachea, 4 pneumatic thrust reverser buffer assembly, 401 receives the gas post, 402 minute trachea, 403 rubber buffer post, 404 receives the trachea, 5 horizontal balance assembly, 501 balanced bulb, 502 cambered surface balance plate, 6 atmospheric pressure expander, 601 toper intake pipe, 602 peach-shaped forcing pipe, 603 pressurization outlet duct.
Detailed Description
The technical solution in 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; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-13, a pneumatic reverse-pushing landing gear for an unmanned aerial vehicle comprises a bearing bottom plate 101 fixedly installed at the lower end of an unmanned aerial vehicle body 1, a plurality of driving structures 102 are installed at the upper end of the bearing bottom plate 101, a visual structure 103 is installed at the front end of the bearing bottom plate 101, a tail wing structure 104 is installed at the rear end of the bearing bottom plate 101, a set of reverse-pushing landing gear assemblies 2 are connected to the left and right ends of the bearing bottom plate 101, a blowing reverse-pushing assembly 3 is installed at the lower end of the bearing bottom plate 101, the blowing reverse-pushing assembly 3 is located between the two sets of reverse-pushing landing gear assemblies 2, a pneumatic reverse-pushing buffer assembly 4 is connected to the lower end of the reverse-pushing landing gear assembly 2, and the blowing reverse-pushing assembly 3 is communicated with the pneumatic reverse-pushing buffer assembly 4 through the reverse-pushing landing gear assemblies 2; referring to fig. 1, fig. 3-5 and fig. 8, the reverse thrust landing frame assembly 2 includes a hoist connecting head 202, the lower end of the bearing bottom plate 101 is connected with four hoist connecting heads 202 in a threaded manner, the hoist connecting heads 202 are located at four corners of the bearing bottom plate 101, the lower end of the hoist connecting head 202 is fixedly connected with a reverse thrust supporting curved rod 203, and the lower end of the reverse thrust supporting curved rod 203 is fixedly connected with an arc-shaped clamping block 204; referring to fig. 1 and fig. 3-10, the pneumatic reverse-pushing type buffer assembly 4 includes an air receiving column 401, the lower end of the arc-shaped clamping block 204 is fixedly connected with the air receiving column 401, an air distributing pipe 402 communicated with the air receiving column 401 is fixedly connected between the air receiving columns 401 of the same group, the outer end of the air distributing pipe 402 is fixedly connected with a rubber buffer column 403 communicated with the air distributing pipe, and the lower end of the rubber buffer column 403 is provided with a plurality of reverse-pushing air holes. The lower end of the bearing bottom plate 101 is provided with the air-blowing reverse-pushing component 3, the lower end of the reverse-pushing undercarriage component 2 is provided with the pneumatic reverse-pushing buffer component 4, the air-blowing reverse-pushing component 3 is matched with the pneumatic reverse-pushing buffer component 4, when the unmanned aerial vehicle body 1 with materials descends, the pneumatic reverse-pushing buffer component 4 blows air to the ground, reverse thrust is effectively realized, inertia of the unmanned aerial vehicle body 1 is buffered, the descending impact force of the unmanned aerial vehicle body 1 is reduced, the descending stability of the unmanned aerial vehicle body 1 is improved, the unmanned aerial vehicle body 1 with materials is effectively protected, the functionality of the reverse-pushing undercarriage component 2 is improved, and when the unmanned aerial vehicle body 1 with materials takes off, the pneumatic reverse thrust is used, the ascending power of the unmanned aerial vehicle body 1 can be effectively increased, and the damage to the driving structure 102 caused by the overweight of the unmanned aerial vehicle body 1, improve unmanned aerial vehicle body 1's life.
Referring to fig. 1 and 7, the air-blowing reverse-thrust assembly 3 includes an air-blowing shell 301, the lower end of the bearing bottom plate 101 is fixedly connected with the air-blowing shell 301, the upper inner wall of the air-blowing shell 301 is fixedly provided with an air-blower 303, the lower end of the air-blowing shell 301 is fixedly connected with a reverse-thrust air-collecting box 302 communicated with the air-blowing shell, and the outer end of the reverse-thrust air-collecting box 302 is fixedly connected with four branch air pipes 304 communicated with the air-blowing shell. Air-blower 303 collects the external air, and carry to in the reverse-thrust wind collection box 302, make the control of branch trachea 304 in with the reverse-thrust wind collection box 302 lead to pneumatic reverse-thrust buffering subassembly 4 respectively, and then for pneumatic reverse-thrust buffering subassembly 4 provides effectual reverse thrust, the effective supplementary unmanned aerial vehicle body 1's that has the goods and materials rise and fall, and the rotational speed through control air-blower 303, can effectively adjust the size that pneumatic reverse-thrust buffering subassembly 4 produced reverse reasoning, improve the reasonable supplementary of pneumatic reverse-thrust buffering subassembly 4 to unmanned aerial vehicle body 1, increase the smooth degree of the rising and falling of unmanned aerial vehicle body 1.
Referring to fig. 7, a plurality of circumferentially distributed air inlet holes are formed at the outer end of the air blowing shell 301, and the air inlet holes are matched with the air blower 303. The air blower 303 absorbs external air through the air inlet hole, and the air blowing shell 301 effectively shields large impurities in the external environment from entering the interior of the air blower, so that the air blower 303 is polluted, and the damage to the air blower 303 is caused.
Referring to fig. 1, 5, 6 and 8, a ventilation cavity is formed in the reverse-thrust support curved rod 203, and the outer ends of the four branch air pipes 304 are respectively fixedly connected with the corresponding reverse-thrust support curved rod 203 and communicated with the ventilation cavity. The air that the branch trachea 304 will push back in the collection wind box 302 lets in the intracavity of ventilating that the brace rod 203 is supported in the backstepping, support the brace rod 203 through the backstepping and realize the switch-on of branch trachea 304 and rubber buffer post 403, reduce the use amount of branch trachea 304, reduce the use amount of unmanned aerial vehicle body 1 lower extreme space, reduce the dead weight of unmanned aerial vehicle body 1, reduce because the energy loss that the dead weight produced, the efficiency of energy use is improved, long when the use of increase unmanned aerial vehicle body 1 battery.
Referring to fig. 10, the upper end of the air collecting column 401 is fixedly connected with an air collecting pipe 404 communicated therewith, the upper end of the air collecting pipe 404 penetrates through the arc-shaped clamping block 204 and extends into the reverse thrust support curved rod 203, and the air collecting pipe 404 is communicated with the ventilation cavity. Receive trachea 404 and the switch-on of reverse thrust support curved bar 203, effectively make the air admission receive gas post 401 in, make and receive gas post 401 and let in the air in to rubber buffering post 403 through gas-distributing pipe 402, make rubber buffering post 403 lower extreme blow up to ground through the reverse thrust gas pocket, effectively realize the reverse promotion to unmanned aerial vehicle body 1, cushion the inertial force of unmanned aerial vehicle body 1, reduce the inertial force of unmanned aerial vehicle body 1, improve unmanned aerial vehicle body 1's life.
Referring to fig. 5 and 8, a transportation connection board 201 is fixedly connected between the four reverse thrust support curved rods 203, and the transportation connection board 201 is located right below the air-blowing reverse thrust assembly 3. Through setting up transportation connecting plate 201, make unmanned aerial vehicle body 1 when can using transportation connecting plate 201 to connect the goods and materials that need the transportation, transportation connecting plate 201 can effectively completely cut off goods and materials and air-blowing backstepping subassembly 3, effectively avoids colliding with of the 3 production of air-blowing backstepping subassembly when loading and unloading goods and materials, effectively guarantees the validity of backstepping formula undercarriage.
Referring to fig. 1-13, the method of use: when the unmanned aerial vehicle body 1 does not transport materials to fly, a common undercarriage (see fig. 13) can be used, and when the unmanned aerial vehicle body 1 needs to transport materials to fly, the transport connecting plate 201 and the bearing bottom plate 101 are connected through bolts, so that the reverse thrust landing gear assembly 2 and the pneumatic reverse thrust buffer assembly 4 are connected with the unmanned aerial vehicle body 1 through the bearing bottom plate 101 (see fig. 4); when the unmanned aerial vehicle body 1 with materials takes off, a remote control person controls the driving structure 102, the visual structure 103 and the air blower 303 are started simultaneously, the air blower 303 rotates, external air is sucked through the air inlet hole, a large amount of air is blown into the reverse thrust air collecting box 302, the air enters the ventilation cavity of the reverse thrust support curved rod 203 through the branch air pipe 304 and enters the air receiving column 401 through the air receiving pipe 404, the air is transmitted to the rubber buffer column 403 through the air distributing pipe 402, the air is discharged through the reverse thrust air hole at the lower end of the rubber buffer column 403, reverse reasoning is generated on the ground, the auxiliary driving structure 102 drives the unmanned aerial vehicle body 1 to take off, the remote control person successfully takes off the air blower 303, the driving structure 102 and the tail wing structure 104 are controlled to drive the unmanned aerial vehicle body 1 to fly to a destination, and the environment where the unmanned aerial vehicle body 1 is located is observed through the visual structure 103; when unmanned aerial vehicle body 1 reachs the destination and prepares to descend, start air-blower 303, make air-blower 303 rotate, inhale outside air through the fresh air inlet, and blow in a large amount of gas to reverse-thrust wind collection box 302, gaseous entering reverse-thrust supports the intracavity of ventilating of curved bar 203 through branch trachea 304, and in receiving trachea 404 entering and receiving gas column 401, transmit to rubber buffering post 403 by gas distribution pipe 402, make the reverse-thrust gas pocket of rubber buffering post 403 lower extreme get rid of gaseous, produce reverse reasoning to ground, the inertial force of buffering unmanned aerial vehicle body 1, and remote control personnel can be according to the distance on unmanned aerial vehicle body 1 distance ground, adjust the rotational speed of air-blower 303, make unmanned aerial vehicle body 1 can steadily descend. The lower end of the bearing bottom plate 101 is provided with the air-blowing reverse-pushing component 3, the lower end of the reverse-pushing undercarriage component 2 is provided with the pneumatic reverse-pushing buffer component 4, the air-blowing reverse-pushing component 3 is matched with the pneumatic reverse-pushing buffer component 4, when the unmanned aerial vehicle body 1 with materials descends, the pneumatic reverse-pushing buffer component 4 blows air to the ground, reverse thrust is effectively realized, inertia of the unmanned aerial vehicle body 1 is buffered, the descending impact force of the unmanned aerial vehicle body 1 is reduced, the descending stability of the unmanned aerial vehicle body 1 is improved, the unmanned aerial vehicle body 1 with materials is effectively protected, the functionality of the reverse-pushing undercarriage component 2 is improved, and when the unmanned aerial vehicle body 1 with materials takes off, the pneumatic reverse thrust is used, the ascending power of the unmanned aerial vehicle body 1 can be effectively increased, and the damage to the driving structure 102 caused by the overweight of the unmanned aerial vehicle body 1, improve unmanned aerial vehicle body 1's life.
Example 2:
referring to fig. 1 to 13, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 1 and fig. 10-12, an air pressure expander 6 is fixedly installed in the back-thrust air hole, the air pressure expander 6 includes a tapered air inlet pipe 601, an upper end of the tapered air inlet pipe 601 is communicated with the rubber buffer column 403, a peach-shaped pressure pipe 602 is fixedly connected to a lower end of the tapered air inlet pipe 601, a pressure outlet pipe 603 is fixedly connected to a lower end of the peach-shaped pressure pipe 602, and a lower end of the pressure outlet pipe 603 extends to an outer side of the rubber buffer column 403. Through installing atmospheric pressure expander 6 in the backstepping gas pocket, make atmospheric pressure expander 6 pressurize the gas that blows up, supplementary drum gas backstepping subassembly 3 produces the effect, and the reverse driving force of increase makes unmanned aerial vehicle body 1 when transporting heavier goods and materials, can effectively rise and fall through the supplementary unmanned aerial vehicle body 1 of reverse driving force, increases the application range of unmanned aerial vehicle body 1 transportation.
Referring to fig. 12, the inner diameter D1 of the upper end of the peach-shaped pressurizing pipe 602, which is connected to the tapered inlet pipe 601, is 0.6 to 0.8 times the maximum inner diameter D2 of the peach-shaped pressurizing pipe 602, and the inner diameter D3 of the pressurizing outlet pipe 603 is 0.1 to 0.3 times the maximum inner diameter D2 of the peach-shaped pressurizing pipe 602. Through the diameter restriction everywhere to atmospheric pressure expander 6 for the air is after getting into toper intake pipe 601, once pressurizes through peach-shaped forcing pipe 602, and the rethread pressurization outlet duct 603 carries out the secondary pressurization, and the input of power supply is reduced to the mode increase direction driving force through the physics pressurization.
Referring to fig. 1-13, the method of use: when the blower 303 rotates, external air is sucked through the air inlet hole, a large amount of air is blown into the reverse thrust air collection box 302, the air enters the ventilation cavity of the reverse thrust support curved rod 203 through the branch air pipe 304 and enters the air collection column 401 through the air collection pipe 404, the air is transferred to the rubber buffer column 403 through the air distribution pipe 402, the air enters the tapered air inlet pipe 601 through the rubber buffer column 403 and enters the peach-shaped pressurizing pipe 602 and the pressurizing air outlet pipe 603, the air is discharged through the pressurizing air outlet pipe 603, when the air enters the peach-shaped pressurizing pipe 602 from the tapered air inlet pipe 601, a certain compression and rotational flow are effectively generated in the peach-shaped pressurizing pipe 602 due to the increase of the space of the reduced diameter, the primary pressurization is completed, when the air in the peach-shaped pressurizing pipe 602 is discharged outside the rubber buffer column 403 through the pressurizing air outlet pipe 603, the space for the flowing of the air is reduced due to the smaller diameter of the pressurizing air outlet pipe 603, further increasing the pressure of the gas, completing the secondary pressurization, discharging the gas with larger pressure through the pressurization gas outlet pipe 603, and increasing the reverse thrust.
Example 3:
referring to fig. 1 to 13, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 3 differs from example 1 in that: referring to fig. 1 and 10, the lower end of the rubber buffer column 403 is connected with a plurality of horizontal balancing assemblies 5, each horizontal balancing assembly 5 comprises a balancing ball head 501, the lower end of the rubber buffer column 403 is provided with a plurality of ball grooves, the balancing ball heads 501 are rotatably connected in the ball grooves, the lower end of each balancing ball head 501 is fixedly connected with a cambered balancing plate 502 through a connecting rod, and the inner arc diameter of each cambered balancing plate 502 is at least 3 times of the outer circle diameter of the rubber buffer column 403. Through setting up horizontal balance subassembly 5 at rubber buffer post 403 lower extreme, make unmanned aerial vehicle body 1 descend to the road surface of unevenness, balanced bulb 501 and cambered surface balancing plate 502 cooperation can the strong point regulate and control, effectively guarantee unmanned aerial vehicle body 1's stability, reduce the probability that unmanned aerial vehicle body 1 emptys.
Referring to fig. 1-13, the method of use: after unmanned aerial vehicle body 1 with goods and materials falls, because the place that needs carry goods and materials may ground unevenness or have debris, easily make unmanned aerial vehicle body 1's the unevenness of the point of falling, cambered surface balancing plate 502 can contact with the fulcrum of co-altitude not, support original face and change into the point and support, and under the influence of unmanned aerial vehicle body 1 weight, if slope appears in unmanned aerial vehicle body 1, balanced bulb 501 can be at rubber cushion post 403 internal rotation, suitable balance point can be found to supplementary cambered surface balancing plate 502, effectively reach unmanned aerial vehicle body 1's stable the making, reduce the probability that unmanned aerial vehicle body 1 emptys.
Example 4:
referring to fig. 1 to 13, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 4 differs from example 1 in that: referring to fig. 2, a method for using a pneumatic reverse-thrust landing gear for an unmanned aerial vehicle includes the following steps:
s1, when the unmanned aerial vehicle body 1 is required to carry substances, replacing an undercarriage for the unmanned aerial vehicle body 1 through bolts;
s2, when the remote control personnel control the unmanned aerial vehicle body 1 with the materials to take off, and the driving structure 102 is started, and the air blowing reverse thrust assembly 3 is started at the same time;
s3, the air blowing reverse-pushing assembly 3 introduces a large amount of air into the pneumatic reverse-pushing type buffer assembly 4 through the reverse-pushing landing gear assembly 2, so that the pneumatic reverse-pushing type buffer assembly 4 blows air to the ground, the unmanned aerial vehicle is reversely pushed, and the unmanned aerial vehicle is assisted to take off;
s4, after the unmanned aerial vehicle body 1 successfully takes off, a remote controller closes the air blowing reverse thrust assembly 3, and controls the driving structure 102 and the tail wing structure 104 to carry out flight control on the unmanned aerial vehicle body 1;
s5, after the remote control personnel judge that the unmanned aerial vehicle body 1 reaches the designated place through feedback of the visual structure 103, controlling the driving structure 102 to enable the unmanned aerial vehicle body 1 to land;
s6, after the unmanned aerial vehicle body 1 is far away from the ground to a landing distance, a remote control person starts the air-blowing reverse-pushing assembly 3, so that a large amount of air is introduced into the pneumatic reverse-pushing type buffer assembly 4 through the reverse-pushing landing gear assembly 2, the pneumatic reverse-pushing type buffer assembly 4 blows air to the ground, the unmanned aerial vehicle is pushed reversely, the inertia of the unmanned aerial vehicle body 1 is buffered, and the unmanned aerial vehicle body 1 is assisted to land;
s7, after the unmanned aerial vehicle body 1 is landed, the driving structure 102 and the air-blowing reverse thrust assembly 3 are closed. Through making calabash even head 202 and bearing bottom plate 101 threaded connection, be convenient for ordinary undercarriage and reverse-pushing undercarriage are changed to unmanned aerial vehicle body 1, make unmanned aerial vehicle body 1 can regard as when not transporting goods and materials to survey unmanned aerial vehicle and use, reduce the energy loss of unmanned aerial vehicle body 1 when surveying time measuring, effectively increase unmanned aerial vehicle body 1's functionality, improve unmanned aerial vehicle body 1's utilization ratio, and through using reverse-pushing undercarriage, make the counterthrust subassembly 3 of blowing and pneumatic reverse-pushing buffer subassembly 4 mutually support, effectively realize the protection to unmanned aerial vehicle body 1, reduce the damage that great inertial force caused to unmanned aerial vehicle body 1.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a pneumatic reverse-push type undercarriage for unmanned aerial vehicle, includes bearing bottom plate (101) of fixed mounting at unmanned aerial vehicle body (1) lower extreme, a plurality of drive structure (102) are installed to bearing bottom plate (101) upper end, visual structure (103) are installed to bearing bottom plate (101) front end, fin structure (104), its characterized in that are installed to bearing bottom plate (101) rear end: the pneumatic reverse thrust type buffer assembly is characterized in that a group of reverse thrust landing gear assemblies (2) are connected to the left end and the right end of the bearing bottom plate (101), an air blowing reverse thrust assembly (3) is mounted at the lower end of the bearing bottom plate (101), the air blowing reverse thrust assembly (3) is located between the two groups of reverse thrust landing gear assemblies (2), the lower end of each reverse thrust landing gear assembly (2) is connected with a pneumatic reverse thrust type buffer assembly (4), and the air blowing reverse thrust assembly (3) is communicated with the pneumatic reverse thrust type buffer assemblies (4) through the reverse thrust landing gear assemblies (2);
the reverse thrust landing gear assembly (2) comprises a hoist connecting head (202), the lower end of the bearing bottom plate (101) is in threaded connection with four hoist connecting heads (202), the hoist connecting heads (202) are positioned at four corners of the bearing bottom plate (101), the lower end of each hoist connecting head (202) is fixedly connected with a reverse thrust supporting curved rod (203), and the lower end of each reverse thrust supporting curved rod (203) is fixedly connected with an arc-shaped clamping block (204);
the pneumatic reverse-pushing type buffer assembly (4) comprises a gas receiving column (401), wherein the lower end of an arc-shaped clamping block (204) is fixedly connected with the gas receiving column (401), a gas distribution pipe (402) which is communicated with the gas receiving column (401) is fixedly connected between the gas receiving column (401) in the same group, the outer end of the gas distribution pipe (402) is fixedly connected with a rubber buffer column (403) which is communicated with the gas distribution pipe, and a plurality of reverse-pushing air holes are formed in the lower end of the rubber buffer column (403).
2. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 1, wherein: the air blowing reverse-pushing assembly (3) comprises an air blowing shell (301), the lower end of the bearing base plate (101) is fixedly connected with the air blowing shell (301), the inner wall of the air blowing shell (301) is fixedly provided with an air blower (303), the lower end of the air blowing shell (301) is fixedly connected with a reverse-pushing air collecting box (302) communicated with the air blowing shell, and the reverse-pushing air collecting box (302) is fixedly connected with four branch air pipes (304) communicated with the air blowing shell.
3. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 2, wherein: the outer end of the air blowing shell (301) is provided with a plurality of air inlet holes which are distributed circumferentially, and the air inlet holes are matched with the air blower (303).
4. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 2, wherein: a ventilation cavity is formed in the reverse-thrust support curved rod (203), and the outer ends of the four branch air pipes (304) are respectively fixedly connected with the corresponding reverse-thrust support curved rod (203) and communicated with the ventilation cavity.
5. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 4, wherein: the upper end of the air collecting column (401) is fixedly connected with an air collecting pipe (404) communicated with the air collecting column, the upper end of the air collecting pipe (404) penetrates through the arc-shaped clamping block (204) and extends into the reverse-thrust supporting curved rod (203), and the air collecting pipe (404) is communicated with the ventilation cavity.
6. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 1, wherein: four fixedly connected with transportation connecting plate (201) between reverse thrust support curved bar (203), and transportation connecting plate (201) are located under air-blowing reverse thrust subassembly (3).
7. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 1, wherein: fixed mounting has atmospheric pressure expander (6) in the backstepping gas pocket, atmospheric pressure expander (6) are including toper intake pipe (601), toper intake pipe (601) upper end and rubber buffering post (403) put through mutually, toper intake pipe (601) lower extreme fixedly connected with peach shape forcing pipe (602), peach shape forcing pipe (602) lower extreme fixedly connected with pressurization outlet duct (603), and pressurization outlet duct (603) lower extreme extends to rubber buffering post (403) outside.
8. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 7, wherein: the inner diameter D1 of the connection part of the upper end of the peach-shaped pressurizing pipe (602) and the conical air inlet pipe (601) is 0.6-0.8 times of the maximum inner diameter D2 of the peach-shaped pressurizing pipe (602), and the inner diameter D3 of the pressurizing air outlet pipe (603) is 0.1-0.3 times of the maximum inner diameter D2 of the peach-shaped pressurizing pipe (602).
9. A pneumatic reverse-thrust undercarriage for unmanned aerial vehicles according to claim 1, wherein: rubber buffering post (403) lower extreme is connected with a plurality of horizontal balance subassembly (5), horizontal balance subassembly (5) are including balanced bulb (501), a plurality of ball grooves have been seted up to rubber buffering post (403) lower extreme, ball inslot internal rotation is connected with balanced bulb (501), balanced bulb (501) lower extreme passes through connecting rod fixedly connected with cambered surface balancing plate (502), the inner arc diameter of cambered surface balancing plate (502) is 3 times of rubber buffering post (403) excircle diameter at least.
10. The method of using a pneumatically powered reverse-thrust landing gear for an unmanned aerial vehicle as claimed in claim 1, wherein: the method comprises the following steps:
s1, when the unmanned aerial vehicle body (1) is required to carry substances, replacing an undercarriage for the unmanned aerial vehicle body (1) through bolts;
s2, remote control personnel control the unmanned aerial vehicle body (1) with materials to take off, and when the driving structure (102) is started, the air blowing reverse thrust assembly (3) is started at the same time;
s3, the air blowing reverse-pushing assembly (3) introduces a large amount of air into the pneumatic reverse-pushing buffer assembly (4) through the reverse-pushing landing gear assembly (2), so that the pneumatic reverse-pushing buffer assembly (4) blows air to the ground, the unmanned aerial vehicle is reversely pushed, and the unmanned aerial vehicle is assisted to take off;
s4, after the unmanned aerial vehicle body (1) successfully takes off, remotely controlling personnel to close the air blowing reverse thrust assembly (3) and control the driving structure (102) and the empennage structure (104) to carry out flight control on the unmanned aerial vehicle body (1);
s5, after judging that the unmanned aerial vehicle body (1) arrives at a designated place through feedback of the visual structure (103), a remote control person controls the driving structure (102) to enable the unmanned aerial vehicle body (1) to land;
s6, after the unmanned aerial vehicle body (1) is far away from the ground to a landing distance, a remote control person starts the air blowing reverse-pushing assembly (3), so that a large amount of air is introduced into the pneumatic reverse-pushing buffer assembly (4) through the reverse-pushing landing gear assembly (2), the pneumatic reverse-pushing buffer assembly (4) blows air to the ground, the unmanned aerial vehicle is reversely pushed, inertia of the unmanned aerial vehicle body (1) is buffered, and the unmanned aerial vehicle body (1) is assisted to land;
s7, after the unmanned aerial vehicle body (1) is landed, the driving structure (102) and the air-blowing reverse thrust assembly (3) are closed.
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| CN202110580203.2A CN113371179A (en) | 2021-05-26 | 2021-05-26 | Pneumatic reverse-pushing type undercarriage for unmanned aerial vehicle and using method thereof |
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| CN202110580203.2A CN113371179A (en) | 2021-05-26 | 2021-05-26 | Pneumatic reverse-pushing type undercarriage for unmanned aerial vehicle and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380057A (en) * | 2023-06-05 | 2023-07-04 | 四川腾盾科技有限公司 | Unmanned aerial vehicle autonomous landing positioning method under GNSS refusing environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380057A (en) * | 2023-06-05 | 2023-07-04 | 四川腾盾科技有限公司 | Unmanned aerial vehicle autonomous landing positioning method under GNSS refusing environment |
| CN116380057B (en) * | 2023-06-05 | 2023-08-29 | 四川腾盾科技有限公司 | Unmanned aerial vehicle autonomous landing positioning method under GNSS refusing environment |
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Application publication date: 20210910 |