CN111806693A

CN111806693A - Unmanned aerial vehicle is used in commodity circulation transportation

Info

Publication number: CN111806693A
Application number: CN202010718958.XA
Authority: CN
Inventors: 周海娅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2020-10-23

Abstract

The invention relates to the technical field of logistics transportation, and discloses an unmanned aerial vehicle for logistics transportation, which comprises an unmanned aerial vehicle main body and a logistics box, wherein the logistics box is fixedly connected below the unmanned aerial vehicle main body, a negative pressure ring used for extracting air in an inner cavity of the logistics box is fixedly installed at the top of the logistics box, a supporting plate is connected in the inner cavity of the logistics box in a sliding mode, a hollow pipe is fixedly connected to the bottom of the supporting plate, and one end, far away from the supporting plate, of the hollow pipe is fixedly connected with a lifting mechanism used for increasing lifting force for the supporting plate. According to the unmanned aerial vehicle, the lifting mechanism is connected below the supporting plate, the lifting force of the lifting mechanism is formed by utilizing the air pressure difference of the air flow on the upper surface and the lower surface of the lifting mechanism, a force opposite to the gravity direction of the goods is applied to the supporting plate, the pressure of the goods and the supporting plate on the bottom surface of the logistics box is reduced, and therefore the tension of the gravity of the goods on the unmanned aerial vehicle is reduced, and the purpose of improving the weight of the goods which can be borne by the unmanned aerial vehicle is achieved.

Description

Unmanned aerial vehicle is used in commodity circulation transportation

Technical Field

The invention relates to the technical field of logistics transportation, in particular to an unmanned aerial vehicle for logistics transportation.

Background

Unmanned planes, i.e., drones, are unmanned planes that are operated by radio remote control devices and self-contained program control devices. Along with economic quick development, the logistics demand is accelerated, the logistics market is constantly enlarged, the increase of logistics orders brings very big pressure for the logistics distribution industry, the delay rate of artifical express delivery is higher, the degree of difficulty is big in remote area delivery, logistics cost risees year by year, logistics distribution market needs the logistics distribution of more swift, convenient, modernization, this provides the condition for unmanned aerial vehicle logistics distribution, consequently, use unmanned aerial vehicle to carry out the trend that the goods is delivered into future development.

At present, because unmanned aerial vehicle's technical limitation, there is specific requirement to the weight of the goods of delivery when unmanned aerial vehicle carries out logistics distribution, the development that has reduced logistics unmanned aerial vehicle is used, to rotor unmanned aerial vehicle, if will increase the goods weight that unmanned aerial vehicle bore, need increase the quantity of rotor, when rotor quantity increases, can increase the weight of unmanned aerial vehicle itself undoubtedly, and unmanned aerial vehicle's power consumption can be accelerated in the increase of rotor, unmanned aerial vehicle's duration is reduced.

Disclosure of Invention

Aiming at the defects of the existing unmanned aerial vehicle for logistics transportation in the background technology in the using process, the invention provides the unmanned aerial vehicle for logistics transportation, which has the advantage of improving the weight of goods and solves the problem that the unmanned aerial vehicle provided in the background technology can bear low weight of goods.

The invention provides the following technical scheme: the utility model provides an unmanned aerial vehicle is used in commodity circulation transportation, includes unmanned aerial vehicle main part and thing flow box, thing flow box fixed connection is in the below of unmanned aerial vehicle main part, the top fixed mounting of thing flow box has the negative pressure ring that is arranged in extracting the thing flow box inner chamber air, sliding connection has the layer board in the inner chamber of thing flow box, the bottom fixedly connected with hollow tube of layer board, the one end fixedly connected with that the layer board was kept away from to the hollow tube is used for increasing the support of lift for the layer board and rises the mechanism, layer board and support are provided with camber guiding mechanism between the mechanism.

Preferably, the fixed tuber pipe that has cup jointed in side of negative pressure ring, the inside of negative pressure ring is equipped with the wind chamber, the wind chamber is linked together through tuber pipe and external world, be equipped with the gap between the head and the tail of negative pressure ring, the opening in gap is up.

Preferably, the front and rear inner walls of the logistics box are provided with strip-shaped teeth, the side face of the supporting plate is provided with a gear, the strip-shaped teeth are meshed with the gear, and a middle shaft of the gear is in transmission connection with the curvature adjusting mechanism.

Preferably, the lifting mechanism is in the shape of a wing, the lifting mechanism comprises a head wing and a tail wing, the tail wing is rotatably connected to the rear end of the head wing, and the top of the head wing is fixedly connected with the supporting plate through a hollow pipe.

Preferably, the curvature adjustment mechanism includes action wheel, auxiliary wheel, drive wheel and follow driving wheel, the action wheel is fixed to be cup jointed in the pivot of gear, the auxiliary wheel rotates and connects in the inner chamber of head wing, the fixed cover of drive wheel is connected in the pivot of auxiliary wheel, drive wheel and follow driving wheel are located the inside of head wing and fin respectively, the action wheel is connected with the equal transmission of auxiliary wheel, drive wheel and follow driving wheel.

Preferably, a partition plate positioned below the negative pressure ring is arranged in the inner cavity of the logistics box, and air holes are formed in the surface of the partition plate.

Preferably, the top fixedly connected with buckled plate of layer board, the upper end fixed connection of buckled plate is on the outer wall of baffle, the buckled plate is located one side of bar tooth.

The invention has the following beneficial effects:

1. according to the unmanned aerial vehicle, the lifting mechanism is connected below the supporting plate, the lifting force of the lifting mechanism is formed by utilizing the air pressure difference of the air flow on the upper surface and the lower surface of the lifting mechanism, a force opposite to the gravity direction of the goods is applied to the supporting plate, the pressure of the goods and the supporting plate on the bottom surface of the logistics box is reduced, and therefore the tension of the gravity of the goods on the unmanned aerial vehicle is reduced, and the purpose of improving the weight of the goods which can be borne by the unmanned aerial vehicle is achieved.

2. The invention provides the lifting force for the goods by utilizing the relative motion of the air and the lifting mechanism when the unmanned aerial vehicle flies, the lifting mechanism has simple structure, the bearing weight of the unmanned aerial vehicle is improved on the premise of not greatly increasing the weight of the unmanned aerial vehicle, the cruising ability of the unmanned aerial vehicle is ensured, the head wing and the tail wing are driven to rotate by the curvature adjusting mechanism, the functions of automatically adjusting the curvature and changing the lifting force of the lifting mechanism are realized, and the stability of the goods is improved under the bumpy state of the unmanned aerial vehicle.

3. The invention increases the flowing speed of the gas at the inner wall of the negative pressure ring by utilizing the flowing of the gas in the negative pressure ring, thereby leading the air in the inner cavity of the logistics box to flow out under the action of the air pressure difference, leading the inner cavity of the logistics box to be in a negative pressure state, utilizing the suction force of the negative pressure to play the role of reducing the pressure of goods on the supporting plate and simultaneously improving the stability of the goods.

Drawings

FIG. 1 is a schematic structural diagram of an unmanned aerial vehicle for logistics transportation;

FIG. 2 is a main view of an unmanned aerial vehicle for logistics transportation;

FIG. 3 is a schematic side view of an unmanned aerial vehicle for logistics transportation;

FIG. 4 is a side view of the unmanned aerial vehicle for logistics transportation;

FIG. 5 is a top view of the flow box;

FIG. 6 is a top view of the negative pressure ring;

FIG. 7 is a cross-sectional view of the negative pressure ring;

FIG. 8 is a schematic structural view of the lifting mechanism;

FIG. 9 is a schematic top view of the lifting mechanism;

FIG. 10 is a schematic view of the jacking mechanism in an equilibrium state;

FIG. 11 is a schematic view of the lifting mechanism in a downward moving state;

fig. 12 is a schematic view of the lifting mechanism in a lifted state.

In the figure: 1. an unmanned aerial vehicle main body; 2. a logistics box; 3. a negative pressure ring; 301. an air duct; 302. a wind cavity; 303. a gap; 4. a support plate; 5. a curvature adjustment mechanism; 501. a driving wheel; 502. an auxiliary wheel; 503. a driving wheel; 504. a driven wheel; 6. a lifting mechanism; 601. a head wing; 602. a tail wing; 7. a bar-shaped tooth; 8. a gear; 9. a partition plate; 10. a hollow tube; 11. a corrugated plate.

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.

Referring to fig. 1-12, an unmanned aerial vehicle for logistics transportation includes an unmanned aerial vehicle main body 1 and a logistics box 2, the logistics box 2 is fixedly connected below the unmanned aerial vehicle main body 1, a certain distance is provided between the unmanned aerial vehicle main body 1 and the logistics box 2 for facilitating air flow, a negative pressure ring 3 for extracting air in an inner cavity of the logistics box 2 is fixedly installed at the top of the logistics box 2, the negative pressure ring 3 can be formed by winding an annular material, the head and the tail of the negative pressure ring 3 are not connected, the head end is close to the inner side, the tail end is biased to the outer side, an air pipe 301 is fixedly sleeved on the side surface of the negative pressure ring 3, the other end of the air pipe 301 is located on the surface of the front end of the logistics box 2, referring to fig. 6 and 7, an air cavity 302 is provided inside the negative pressure ring 3, that is an air cavity 302 formed after the head and the tail of the negative pressure ring 3 are wound, the opening of the gap 303 faces upwards, the gap 303 is formed at the head end and the tail end, meanwhile, due to the blocking of the tail end, air flows out of the gap 303 and flows upwards, when the unmanned aerial vehicle flies forwards, the air flow enters the air cavity 302 from the air pipe 301 and then flows upwards to the logistics box 2 through the gap 303, at the moment, the air flow rate on the inner wall of the negative pressure ring 3 is larger than the air flow rate in the inner cavity of the logistics box 2, under the action of air pressure, the air in the inner cavity of the logistics box 2 flows out of the interior of the logistics box 2 from the middle part of the negative pressure ring 3, so that the inner cavity of the logistics box 2 is in a negative pressure state compared with the outside, due to the attraction of the air pressure, on one hand, a certain lifting force can be applied to goods, and on; a door is arranged on the side surface of the logistics box 2, a supporting plate 4 is connected in the inner cavity of the logistics box 2 in a sliding manner, strip-shaped teeth 7 are arranged on the front inner wall and the rear inner wall of the logistics box 2, a gear 8 is arranged on the side surface of the supporting plate 4, the strip-shaped teeth 7 are meshed with the gear 8, goods are placed on the supporting plate 4 in the inner cavity of the logistics box 2 from the door, a hollow pipe 10 is fixedly connected to the bottom of the supporting plate 4, the hollow pipe 10 penetrates through the bottom surface of the logistics box 2, a lifting mechanism 6 for increasing lifting force to the supporting plate 4 is fixedly connected to one end, far away from the supporting plate 4, of the hollow pipe 10, the lifting force is transmitted to the supporting plate 4 through the hollow pipe 10, the gear 8 on the side surface of the supporting plate 4 rotates and moves upwards along the strip-shaped teeth 7 on the inner wall of the logistics box 2, so, the lifting mechanism 6 is in the shape of a wing, according to the bernoulli principle, when the main body 1 of the unmanned aerial vehicle moves forward, airflow passes through the upper surface and the lower surface of the lifting mechanism 6, according to the known technology, the airflow velocity on the upper surface of the lifting mechanism 6 is larger than the airflow velocity on the lower surface of the lifting mechanism 6, the pressure on the upper surface of the lifting mechanism 6 is smaller than the pressure on the lower surface of the lifting mechanism 6, therefore, the lifting mechanism 6 moves upward, the supporting plate 4 is pushed to move upward through the hollow tube 10, the lifting mechanism 6 comprises a head wing 601 and a tail wing 602, the tail wing 602 is rotatably connected to the rear end of the head wing 601, the top of the head wing 601 is fixedly connected with the supporting plate 4 through the hollow tube 10, a curvature adjusting mechanism 5 is arranged between the supporting plate 4 and the lifting mechanism 6, the curvature adjusting mechanism 5 comprises a driving wheel 501, an auxiliary wheel 502, a driving wheel 503 and a driven wheel 504, the driving wheel 501 is fixed, that is, the driving wheel 501 is located inside the supporting board 4, the auxiliary wheel 502 is rotatably connected in the inner cavity of the head wing 601, the driving wheel 503 is fixedly sleeved on the rotating shaft of the auxiliary wheel 502, the driving wheel 503 and the driven wheel 504 are respectively located inside the head wing 601 and the tail wing 602, the driving wheel 501 is in transmission connection with the auxiliary wheel 502, the driving wheel 503 and the driven wheel 504 can be respectively connected with the driving wheel 501 and the auxiliary wheel 502, the driving wheel 503 and the driven wheel 504 through belts, the belts connected with the driving wheel 501 and the auxiliary wheel 502 are located in the inner cavity of the hollow tube 10, during the flight of the unmanned aerial vehicle, the unmanned aerial vehicle jolts due to the instability of air flow, the cargo on the surface of the supporting board 4 shakes up and down, the pressure of the cargo on the surface of the supporting board 4 is reduced or increased, the pressure is easily reacted to the unmanned aerial vehicle main body 1 due to the imbalance of pressure, the jolt condition of the unmanned, when the lifting force of the lifting mechanism 6 is balanced with the cargo pressure, referring to fig. 10, the head wing 601 and the tail wing 602 are kept horizontal; when the lift of the wing 601 is greater than the pressure of the cargo, the gear 8 moves upwards along the rack 7, see fig. 3, the gear 8 rotates clockwise, through the transmission of the driving wheel 501, the auxiliary wheel 502 and the transmission wheel 503, the driven wheel 504 also rotates clockwise, the tail wing 602 moves upwards along the head wing 601, referring to fig. 11, at this time, the curvature of the lifting mechanism 6 is reduced, the pressure difference between the upper side and the lower side of the lifting mechanism 6 is reduced, the lifting force of the lifting mechanism 6 is reduced until the lifting force of the lifting mechanism 6 is the same as the pressure of the goods, when the lifting force of the lifting mechanism 6 is smaller than the pressure of the goods, the actions of the gear 8, the curvature adjusting mechanism 5 and the lifting mechanism 6 are opposite to the above, the state of the lifting mechanism 6 is shown in figure 12, in practical application, due to the uncertainty of the weight of the cargo, the states of the head 601 and the tail 602 of the lifting mechanism 6 are dynamically adjusted by taking an ideal balance state as a reference state; a partition plate 9 positioned below the negative pressure ring 3 is arranged in an inner cavity of the logistics box 2, an air hole is formed in the surface of the partition plate 9 and used for ensuring that air flow below the partition plate 9 can upwards circulate, and meanwhile, the partition plate 9 is used for blocking goods from upwards moving to block the negative pressure ring 3, so that the air flow cannot upwards flow; the top fixedly connected with buckled plate 11 of layer board 4, buckled plate 11 is collapsible, and the upper end fixed connection of buckled plate 11 is on the outer wall of baffle 9, and buckled plate 11 is located one side of bar tooth 7, uses buckled plate 11 to separate bar tooth 7 and goods, avoids the goods to block bar tooth 7, hinders the removal of gear 8.

The using method of the invention is as follows:

firstly, goods are placed on the surface of the supporting plate 4 through a door on the side surface of the logistics box 2, when the unmanned aerial vehicle body 1 flies, airflow enters the air cavity 302 from the air pipe 301 and flows out from the gap 303, and air in the inner cavity of the logistics box 2 flows out from the middle part of the negative pressure ring 3 under the action of air pressure difference, secondly, when the unmanned aerial vehicle body 1 flies, the speed of the airflow passing through the upper surface and the lower surface of the supporting and lifting mechanism 6 is different, the air pressure difference enables the supporting and lifting mechanism 6 to ascend, the ascending force of the supporting and lifting mechanism 6 is transmitted to the supporting plate 4, the pressure of the supporting plate 4 and the goods on the bottom surface of the logistics box 2 is reduced, finally, when the unmanned aerial vehicle body 1 jolts, if the goods and the supporting plate 4 move downwards, the gear 8 rotates anticlockwise, the tail wing 602 is driven to rotate downwards around the head wing 601 through the curvature adjusting mechanism 5, the curvature of the supporting and lifting mechanism 6 is increased, the air pressure difference of, the pallet 4 and the load move up to the balance, and if the load and the pallet 4 move up, the above operation is reversed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an unmanned aerial vehicle is used in commodity circulation transportation, includes unmanned aerial vehicle main part (1) and thing flow box (2), thing flow box (2) fixed connection is in the below of unmanned aerial vehicle main part (1), its characterized in that: the top fixed mounting of thing flow box (2) has negative pressure ring (3) that are arranged in extracting thing flow box (2) inner chamber air, sliding connection has layer board (4) in the inner chamber of thing flow box (2), the bottom fixedly connected with hollow tube (10) of layer board (4), the one end fixedly connected with that layer board (4) were kept away from in hollow tube (10) is used for increasing the support of lift and rises mechanism (6) for layer board (4), be provided with camber guiding mechanism (5) between layer board (4) and the support and rise mechanism (6).

2. The unmanned aerial vehicle for logistics transportation of claim 1, wherein: the fixed tuber pipe (301) of having cup jointed in side of negative pressure ring (3), the inside of negative pressure ring (3) is equipped with wind chamber (302), wind chamber (302) are linked together through tuber pipe (301) and external world, be equipped with gap (303) between the head and the tail of negative pressure ring (3), the opening in gap (303) is up.

3. The unmanned aerial vehicle for logistics transportation of claim 1, wherein: the front and rear inner walls of the logistics box (2) are provided with strip-shaped teeth (7), the side face of the supporting plate (4) is provided with a gear (8), the strip-shaped teeth (7) are meshed with the gear (8), and a middle shaft of the gear (8) is in transmission connection with the curvature adjusting mechanism (5).

4. The unmanned aerial vehicle for logistics transportation of claim 3, wherein: the lifting mechanism (6) is in the shape of a wing, the lifting mechanism (6) comprises a head wing (601) and a tail wing (602), the tail wing (602) is rotatably connected to the rear end of the head wing (601), and the top of the head wing (601) is fixedly connected with the supporting plate (4) through a hollow pipe (10).

5. The unmanned aerial vehicle for logistics transportation of claim 4, wherein: curvature guiding mechanism (5) are including action wheel (501), auxiliary wheel (502), drive wheel (503) and follow driving wheel (504), fixed cup joint in the pivot of gear (8) in action wheel (501), auxiliary wheel (502) rotate to be connected in the inner chamber of head wing (601), drive wheel (503) are fixed to be cup jointed in the pivot of auxiliary wheel (502), drive wheel (503) and follow driving wheel (504) are located the inside of head wing (601) and fin (602) respectively, action wheel (501) and auxiliary wheel (502), drive wheel (503) and follow driving wheel (504) all transmission connection.

6. The unmanned aerial vehicle for logistics transportation of claim 1, wherein: a partition plate (9) located below the negative pressure ring (3) is arranged in an inner cavity of the logistics box (2), and air holes are formed in the surface of the partition plate (9).

7. The unmanned aerial vehicle for logistics transportation of claim 1, wherein: the top fixedly connected with buckled plate (11) of layer board (4), the upper end fixed connection of buckled plate (11) is on the outer wall of baffle (9), buckled plate (11) are located one side of bar tooth (7).