WO2022067939A1

WO2022067939A1 - Agricultural unmanned aerial vehicle

Info

Publication number: WO2022067939A1
Application number: PCT/CN2020/125459
Authority: WO
Inventors: 高廉洁; 任乐乐
Original assignee: 拓攻（南京）机器人有限公司
Priority date: 2020-09-30
Filing date: 2020-10-30
Publication date: 2022-04-07
Also published as: CN112158337A; CN112158337B

Abstract

An agricultural unmanned aerial vehicle, comprising a body (1), first foot stands (2), second foot stands (3), a battery (4) and a pesticide box (5). The first foot stands (2) are fixedly connected to the bottom portion of the body (1); the second foot stands (3) are fixedly connected to the first foot stands (2) by means of a mounting frame (6); the battery (4) is fixed on the mounting frame (6) by means of a battery limiting piece (7); and the pesticide box (5) is fixedly connected to the first foot stands (2) and the second foot stands (3) by means of connecting pieces (8).

Description

an agricultural drone

technical field

The present disclosure relates to the technical field of unmanned aerial vehicles, for example, to an agricultural unmanned aerial vehicle.

Background technique

Agricultural drones are unmanned aerial vehicles used for agricultural and forestry plant protection operations. The agricultural drones can be operated by radio remote control equipment or their own program control devices, which can realize pesticide spraying operations on agricultural and forestry plants, which not only saves manpower Material resources can also be remotely operated by remote control. During the pesticide spraying process, the operators are kept away from the sprayed pesticides, which improves the safety and efficiency of pesticide spraying.

The existing agricultural drones need to be loaded with batteries and medicine boxes when spraying pesticides. The batteries are fixed on the body of the agricultural drones, and the electrical components are connected through wires to provide power for each electrical component. The medicine box is also fixed on the agricultural drone. On the fuselage of the drone, the medicine box and the spray nozzle for spraying pesticides are connected by hoses to realize the spraying of pesticides. The tripod of the agricultural drone is fixed on the bottom of the fuselage through the connecting piece, and the bottom end of the tripod is in contact with the ground. to achieve landing.

However, the batteries and medicine boxes of the existing agricultural drones are fixed on the fuselage. When the agricultural drones land, the fuselage has to overcome the impact force caused by the weight of the fuselage, and also overcome The impact of the weight of the battery and medicine chest. Due to the heavy weight of the battery and the medicine box, the impact force brought by the battery and the medicine box to the fuselage is also larger, and the vibration generated by the impact force easily affects the stability of the connection of various components in the fuselage.

SUMMARY OF THE INVENTION

The present disclosure provides an agricultural unmanned aerial vehicle, which avoids that the fuselage needs to overcome the weight of the battery and the medicine box in addition to the impact force brought by the weight of the fuselage when the agricultural unmanned aerial vehicle is landed in the related art. the issue of impact.

The present disclosure provides an agricultural drone, comprising a body, a first tripod, a second tripod, a battery and a medicine box;

The first tripod is fixedly connected to the bottom of the fuselage; the second tripod is fixedly connected to the first tripod through an installation frame; the battery is fixed on the installation frame through a battery limiter; The medicine box is fixedly connected to the first tripod and the second tripod through a connecting piece.

Optionally, the first tripod includes two sets of symmetrical support rods; the ends of each set of the support rods are fixedly connected to the bottom of the fuselage.

Optionally, the second leg frame includes two symmetrical closed-loop support frames; the two closed-loop support frames are fixedly connected to two sides of the mounting frame.

Optionally, the mounting frame includes two carbon plates parallel to each other, a connecting frame and a first pipe clamp located between the two carbon plates;

The connecting frame includes two second pipe clamps sleeved on the support rod and a connecting rod connecting the two second pipe clamps, and the first pipe clamp is sleeved on the closed-loop support frame.

Optionally, the battery limiter includes two limiter frames fixed on the carbon plate and parallel to each other, a limiter cover hinged to the ends of the two limiter frames, and the limiter. Battery quick release with hinged lid;

The two limit frames clamp the battery in a direction parallel to the upper surface of the carbon plate; the limit cover and the carbon plate clamp the battery in a direction perpendicular to the upper surface of the carbon plate. the battery;

An extension part is provided on the end of the limit cover away from the limit frame and the limit cover, and the extension part is used for clamping the battery in a direction parallel to the upper surface of the carbon plate;

One end of the battery quick release member away from the limiting cover penetrates through the limiting frame and is movably connected with the limiting frame.

Optionally, the battery quick-release part includes a casing, a support column, a locking lever, a first return spring sleeved on the support column, and a second return spring sleeved on the locking lever;

A first chamber, a second chamber and a third chamber are formed in the shell;

the outer shell is fixedly connected in the limit frame, one end of the support column is hinged to the limit cover, and the other end of the support column penetrates the limit frame and the second chamber in sequence;

The support column is provided with a first limiting circular platform, and both ends of the first return spring abut the limiting frame and the first limiting circular platform respectively;

A first limiting tooth is arranged on the side of the support column close to the extension part, and the end of the locking rod passes through the first chamber, the second chamber and the third chamber in sequence, so The locking rod is fixedly connected with a second limit tooth that is matched with the first limit tooth and has an opposite tooth direction;

The end of the locking rod is provided with a second limiting circular platform, and both ends of the second return spring are respectively abutted against the second limiting circular platform and the inner wall of the third chamber.

Optionally, the battery quick-release part further includes a limit shaft; an end of the support column away from the limit cover is provided with a vertical waist-shaped hole; the outer shell is provided with a horizontal waist-shaped hole, and the The horizontal waist-shaped hole penetrates the limit frame; the limit shaft penetrates and connects the vertical waist-shaped hole and the horizontal waist-shaped hole at the same time.

Optionally, the connecting piece includes a first fixing piece sleeved on the support rod, a second fixing piece sleeved on the closed-loop support frame, respectively connecting the first fixing piece and the second fixing piece. Two fixing plates of the fixing parts and a connecting block connecting the medicine box and the fixing plate;

A clamping groove for accommodating the fixing plate is formed on the first fixing piece; a fourth cavity is formed in the first fixing piece; the fourth cavity penetrates the upper surface of the first fixing piece;

The first fixing member is provided with a J-shaped column, and one end of the J-shaped column penetrates the first fixing member and the fourth chamber and extends above the upper surface of the first fixing member; the The other end of the J-shaped column extends through the first fixing member into the clamping groove;

The end of the J-shaped column close to the fourth chamber is provided with a third limiting circular platform; the J-shaped column is sleeved with a third return spring; the two ends of the third return spring are respectively abutted against the the bottom of the fourth chamber and the third limiting circular platform;

The J-shaped column is provided with a fourth limiting circular platform to abut the bottom of the fixing member; the first fixing member is formed with a clamping groove, and the clamping groove is used to accommodate the J-shaped column away from the the end of the fourth chamber.

Optionally, the first fixing member is formed with a threaded through hole, and the threaded through hole is located above the clamping groove; a threaded column is screwed in the threaded through hole, and the threaded column is a hollow structure;

The threaded column is provided with a top ball and a top spring, the top ball passes through and is clamped to the bottom of the threaded column; both ends of the top spring abut against the top of the threaded column cavity and the top ball respectively .

Optionally, a battery handle is hinged on the side of the battery away from the hinged joint between the limit frame and the limit cover.

As can be seen from the above technical solutions, the present disclosure provides an agricultural drone, which includes a fuselage, a first tripod, a second tripod, a battery and a medicine box; the first tripod is fixedly connected to the bottom of the fuselage ; the second tripod is fixedly connected to the first tripod through a mounting frame; the battery is fixed on the mounting frame through a battery limiter; the medicine box is fixedly connected to the first tripod through a connecting member and the second tripod. When the agricultural drone lands, the impact force brought by the weight of the battery is transmitted to the first tripod, the mounting frame and the second tripod, and the weight of the medicine box brings about The impact force of the fuselage is transmitted to the first tripod and the second tripod, and the fuselage only overcomes the impact force caused by the weight of the fuselage, which reduces the vibration generated by the fuselage and improves the The stability of the connection of various components in the fuselage is improved.

Description of drawings

In order to illustrate the technical solutions of the present disclosure more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without any creative effort, the Additional drawings can be obtained from these drawings.

FIG. 1 is a schematic structural diagram of an agricultural drone according to an embodiment of the present disclosure;

2 is a schematic structural diagram of a mounting frame in an agricultural drone provided by an embodiment of the present disclosure;

3 is a schematic structural diagram of a battery limiter in an agricultural drone provided by an embodiment of the present disclosure;

4 is a cross-sectional view of the structure of a quick-release battery in an agricultural drone provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a casing in an agricultural drone provided by an embodiment of the present disclosure;

6 is a schematic structural diagram of a connector in an agricultural drone provided by an embodiment of the present disclosure;

7 is a schematic structural diagram of a first fixing member in an agricultural drone provided by an embodiment of the present disclosure;

8 is a structural cross-sectional view of a first fixing member in an agricultural drone provided by an embodiment of the present disclosure;

9 is a schematic structural diagram of another angle of a first fixing member in an agricultural drone provided by an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a threaded post in an agricultural unmanned aerial vehicle and its interior according to an embodiment of the present disclosure.

Among them, 1-fuselage; 2-first tripod, 21-support rod; 3-second tripod, 31-closed-loop support frame; 4-battery, 41-battery handle; 5-medicine box; 6-mounting frame , 61-carbon plate, 62-connecting frame, 63-first pipe clamp, 621-second pipe clamp, 622-connecting rod; 7-battery limiter, 71-limiting frame, 72-limiting cover, 73 -Battery quick release, 721-Extension, 731-Housing, 732-Support column, 733-Lock lever, 734-Limiting shaft, 7311-First chamber, 7312-Second chamber, 7313-Third Chamber, 7314-horizontal waist-shaped hole, 7321-first limit circular table, 7322-first return spring, 7323-first limit tooth, 7324-vertical waist hole, 7331-second limit tooth, 7332 -Second Limiting Round Table, 7333-Second Return Spring; 8-Connecting Piece, 81-First Fixing Piece, 82-Second Fixing Piece, 83- Fixing Plate, 84-Connecting Block, 811-Clamping Slot, 812 -The fourth chamber, 813-J-shaped column, 814-card slot, 815-threaded through hole, 816-threaded column, 8131-third limit round table, 8132-third return spring, 8133-fourth limit round table , 8161-top ball, 8162-top tight spring.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

FIG. 1 is a schematic structural diagram of an agricultural unmanned aerial vehicle provided by an embodiment of the present disclosure, and an embodiment of the agricultural unmanned aerial vehicle of the present disclosure will be described below with reference to FIG. 1 .

In a feasible technical solution, the battery and medicine box of the agricultural drone are fixed on the fuselage. When the agricultural drone lands, the fuselage needs to overcome the impact force caused by the weight of the fuselage. In addition, it is necessary to overcome the impact force brought by the weight of the battery and the medicine box. Since the battery and the medicine box are both heavy, the impact force brought by the battery and the medicine box to the fuselage is also larger, and the impact force generated by the impact force is large. Vibration easily affects the stability of the connection of various components in the fuselage.

This embodiment provides an agricultural drone, which includes a fuselage 1, a first tripod 2, a second tripod 3, a battery 4 and a medicine box 5; the first tripod 2 The bottom of the fuselage 1 is fixedly connected; the second tripod 3 is fixedly connected to the first tripod 2 through the mounting frame 6 ; the battery 4 is fixed on the mounting frame 6 through the battery limiter 7 ; The medicine box 5 is fixedly connected to the first leg frame 2 and the second leg frame 3 through a connecting member 8 .

When the agricultural drone lands, the impact force brought by the weight of the battery 4 is transmitted to the first tripod 2 , the mounting frame 6 and the second tripod 3 , and the medicine box 5 The impact force caused by the weight of the fuselage is transmitted to the first tripod 2 and the second tripod 3, and the body 1 only overcomes the impact force caused by the weight of the fuselage 1, reducing the The vibration generated by the fuselage 1 improves the stability of the connection of various components in the fuselage 1 .

FIG. 2 is a schematic structural diagram of a mounting frame in an agricultural unmanned aerial vehicle provided by an embodiment of the present disclosure, and an embodiment of an agricultural unmanned aerial vehicle of the present disclosure will be described below with reference to FIG. 2 .

The first tripod 2 includes two sets of symmetrical support rods 21 ; the ends of each set of the support rods 21 are fixedly connected to the bottom of the fuselage 1 .

There are two groups of the support rods 21, and each group has at least one of the support rods 21, preferably. There are two supporting rods 21 in each group, and the ends of the two supporting rods 21 in each group are fixedly connected to the bottom of the fuselage 1 respectively, which not only improves the supporting rods 21 and the fuselage 1 The stability of the connection without adding too much to the overall weight of the agricultural drone.

The second tripod 3 includes two symmetrical closed-loop support frames 31 ; the two closed-loop support frames 31 are fixedly connected to two sides of the mounting frame 6 .

The closed-loop support frame 31 is a trapezoidal structure with a narrow top and a wide bottom. The bottom of the closed-loop support frame 31 is wider to improve the landing stability of the agricultural drone. The top of the closed-loop support frame 31 is fixedly connected to the The installation frame 6 increases the contact area between the closed-loop support frame 31 and the installation frame 6 , and improves the stability of the connection between the closed-loop support frame 31 and the installation frame 6 .

The mounting frame 6 includes two carbon plates 61 parallel to each other, a connecting frame 62 and a first pipe clamp 63 located between the two carbon plates 61; The second pipe clamp 621 on the rod 21 and the connecting rod 622 connecting the two second pipe clamps 621 , and the first pipe clamp 63 is sleeved on the closed-loop support frame 31 .

In this embodiment, the number of the carbon plates 61 is not limited, and the number of the first pipe clamps 63 is also not limited. The number of the second pipe clamps 621 matches the number of the support rods 21, so The second pipe clamp 621 is sleeved on the support rod 21 , and the connecting rod 622 is fixedly connected to the second pipe clamp 621 .

Compared with other materials, the carbon plate 61 is light in weight, low in cost and strong in deformation resistance. When the agricultural drone lands, the carbon plate 61 can withstand the impact brought by the weight of the battery 4 . The number of the carbon plates 61 is preferably two, and the carbon plates 61 are connected to the two ends of the top of the closed-loop support frame 31 through the first pipe clip 63, so that the closed-loop support frame 31 and the carbon The stability of the connection of the board 61.

The connecting rod 622 is fixedly connected to the two carbon plates 61 at the same time, and the carbon plate 61 is connected to the second pipe clamp 621 through the connecting rod 622 to improve the connection between the support rod 21 and the carbon plate 61 . stability.

The support rod 21 overcomes the impact force caused by the weight of the battery 4 , and the closed-loop support frame overcomes the impact force caused by the weight of the medicine box 5 to avoid the battery 4 and the medicine box 5 . The impact force caused by the weight of the fuselage 1 can be avoided, thereby preventing the vibration generated by the impact force from destroying the stability of the connection of the components in the fuselage 1 .

FIG. 3 is a schematic structural diagram of a battery limiter in an agricultural drone provided by an embodiment of the present disclosure. An embodiment of the agricultural drone of the present disclosure will be described below with reference to FIG. 3 .

The battery limiter 7 includes two limiter frames 71 fixed on the carbon plate 61 and parallel to each other, a limiter cover 72 hinged to the ends of the two limiter frames 71 respectively, and the limiter. The battery quick release 73 hinged on the cover 72.

The two limiting brackets 71 clamp the battery 4 in a direction parallel to the upper surface of the carbon plate 61 ; the limiting cover 72 and the carbon plate 61 are perpendicular to the upper surface of the carbon plate 61 . Clamp the battery 4 in the direction of the

In the direction parallel to the upper surface of the carbon plate 61, the two limiting brackets 71 clamp the battery 4 between the two limiting brackets 71, preventing the battery 4 from being parallel to the The displacement occurs in the direction of the upper surface of the carbon plate 61; in the direction perpendicular to the upper surface of the carbon plate 61, the limiting cover 72 clamps the battery 4 between the limiting cover 72 and the carbon Between the plates 61 , the battery 4 is prevented from being displaced in a direction perpendicular to the upper surface of the carbon plate 61 .

An extension portion 721 is provided on the end of the limit cover 72 away from the limit frame 71 and the limit cover 72 , and the extension portion 721 is used in a direction parallel to the upper surface of the carbon plate 61 . Clamp the battery 4 .

The limit frame 71 , the limit cover 72 and the battery quick-release part 73 constitute a battery limiter 7 with an opening on one side. In order to prevent the battery 4 from sliding out of the opening on one side of the battery limiter 7 , The extension portion 721 is formed by extending downward perpendicular to the upper surface of the carbon plate 61 at the opening on the side of the limiting cover 72 close to the battery limiting member 7 .

One end of the battery quick-release part 73 away from the limit cover 72 penetrates through the limit frame 71 and is movably connected with the limit frame 71 ; the battery limiter 7 passes through the battery quick-release part 73 The quick removal and installation of the battery 4 is realized, which facilitates the quick replacement of the battery 4 .

4 is a structural cross-sectional view of a battery quick-release part in an agricultural drone provided by an embodiment of the present disclosure, and FIG. 5 is a schematic structural diagram of a casing in an agricultural drone provided by an embodiment of the present disclosure. 4 and 5 illustrate one embodiment of an agricultural drone of the present disclosure.

The battery quick-release part 73 includes a casing 731 , a support column 732 , a locking lever 733 , a first return spring 7322 sleeved on the support column 732 , and a second return spring 7333 sleeved on the lock lever 733 .

A first chamber 7311, a second chamber 7312 and a third chamber 7313 are formed in the casing 731; the casing 731 is fixedly connected in the limiting frame 71, and one end of the support column 732 is hinged to the The limiting cover 72 and the other end of the support column 732 penetrate through the limiting frame 71 and the second chamber 7312 in sequence.

The support column 732 is provided with a first limiting circular platform 7321, and both ends of the first return spring 7322 are respectively abutted on the limiting frame 71 and the first limiting circular platform 7321;

When the battery 4 is fixed by the battery limiter 7, the first return spring 7322 is in a compressed state between the limit frame 71 and the first limit circular table 7321, and the first return spring 7322 is in a compressed state. The spring 7322 generates an upward force on the first limit circular table 7321, and when the battery 4 is replaced, the first return spring 7322 generates an upward force on the first limit circular table 7321 to make the limit The cover 72 is opened upward to facilitate the quick removal of the battery 4 .

A first limiting tooth 7323 is disposed on the side of the support column 732 close to the extension portion 721 , and the end of the locking rod 733 passes through the first chamber 7311 , the second chamber 7312 and the In the third chamber 7313 , the locking rod 733 is fixedly connected with a second limiting tooth 7331 which is matched with the first limiting tooth 7323 and has an opposite tooth direction.

When the battery 4 is fixed by the battery limiting member 7, the first return spring 7322 generates an upward force on the first limiting circular platform 7321, that is, generates an upward force on the support column 732, in order to The limiting cover 72 is not ejected, the second limiting teeth 7331 are located in the second chamber 7312, and the first limiting teeth 7323 and the second limiting teeth 7331 are mutually engaged to prevent The first limiting teeth 7323 are fixed in the second chamber 7312 .

The end of the locking rod 733 is provided with a second limiting circular platform 7332 , and both ends of the second return spring 7333 abut against the second limiting circular platform 7332 and the inner wall of the third chamber 7313 respectively.

During the flight of the agricultural drone, the second limit tooth 7331 may be loose, causing the first return spring 7322 to move the support column 732 upward to pop open the limit cover 72, In order to prevent the second limiting tooth 7331 from loosening, in the third chamber 7313, the end of the locking rod 733 is provided with a second limiting circular platform 7332, and the second limiting circular platform 7332 is preferably The nut screwed on the end of the locking rod 733, when the first limit tooth 7323 and the second limit tooth 7331 are in a mutually engaged state, the second return spring 7333 is in a compressed state, so The second return spring 7333 presses against the second limiting circular table 7332 so that the second limiting tooth 7331 tightly fits the support column 732 . When the battery 4 needs to be replaced, the locking lever 733 is pulled, the second return spring 7333 is compressed, and the second limit tooth 7331 is away from the support column 732 to disengage from the first limit tooth Step 7323 , the first return spring 7322 moves the support column 732 upward to pop open the limiting cover 72 .

The battery quick-release part 73 further includes a limit shaft 734; the end of the support column 732 away from the limit cover 72 is provided with a vertical waist-shaped hole 7324; the outer shell 731 is provided with a horizontal waist-shaped hole 7314 , the lateral waist-shaped hole 7314 penetrates the limiting frame 71 ; the limiting shaft 734 penetrates and connects the vertical waist-shaped hole 7324 and the lateral waist-shaped hole 7314 at the same time.

The limiting shaft 734 can reciprocate in the vertical waist-shaped hole 7324, and the limiting shaft 734 can also reciprocate in the lateral waist-shaped hole 7314, so that the support column 732 moves up and down more smoothly Smooth, the vertical waist-shaped hole 7324 also plays the role of locking the support column 732. When the battery 4 is replaced, the upward movement of the support column 732 drives the vertical waist-shaped hole 7324 to move upward. , the bottom of the vertical waist-shaped hole 7324 contacts the limit shaft 734, and the support column 732 cannot continue to move upward, preventing the limit cover 72 from rapidly and excessively opening and touching the fuselage 1. The fuselage 1 is damaged.

6 is a schematic structural diagram of a connector in an agricultural drone provided by an embodiment of the present disclosure, FIG. 7 is a schematic structural diagram of a first fixing member in an agricultural drone provided by an embodiment of the present disclosure, and FIG. 8 A structural cross-sectional view of a first fixing member in an agricultural drone provided by an embodiment of the present disclosure, and FIG. 9 is a schematic structural diagram of another angle of the first fixing member in an agricultural drone provided by the embodiment of the present disclosure. , an embodiment of the agricultural drone of the present disclosure will be described below with reference to FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 .

The connecting member 8 includes a first fixing member 81 sleeved on the support rod 21, a second fixing member 82 sleeved on the closed-loop support frame 31, respectively connecting the first fixing member 81 and the The fixing plate 83 of the second fixing member 82 and the connecting block 84 connecting the medicine box 5 and the fixing plate 83 .

Preferably, threaded holes are reserved on the medicine box 5 , and the medicine box 5 and the fixing plate 83 are connected to the connecting block 84 by bolts and nuts, so as to facilitate the quick disassembly and installation of the medicine box 5 .

The first fixing member 81 is formed with a clamping groove 811 for accommodating the fixing plate 83; a fourth cavity 812 is formed in the first fixing member 81; A fixing member 81 on the upper surface.

The structures of the first fixing member 81 and the second fixing member 82 are the same, that is, the second fixing member 82 has all the structures of the first fixing member 81 .

The first fixing member 81 is provided with a J-shaped column 813 , and one end of the J-shaped column 813 penetrates the first fixing member 81 and the fourth chamber 812 and extends to the first fixing member 81 Above the surface; the other end of the J-shaped column 813 extends through the first fixing member 81 into the clamping groove 811 .

When one end of the J-shaped column extends above the upper surface of the first fixing member 81, a through hole is left at the end of the fixing plate 83, and the end of the fixing plate 83 is inserted into the clamping groove 811, the other end of the J-shaped column 813 extends into the clamping groove 811 and passes through the through hole at the end of the fixing plate 83, thereby fixing the fixing plate 83 and the first fixing member 81 connect.

The end of the J-shaped column 813 close to the fourth chamber 812 is provided with a third limiting circular platform 8131; the J-shaped column 813 is sleeved with a third return spring 8132; Both ends abut against the bottom of the fourth chamber 812 and the third limiting circular platform 8131 respectively.

The third limiting circular platform 8131 is preferably a nut screwed on the end of the J-shaped column 813, the third return spring 8132 is always in a compressed state, and the third return spring 8132 is always on the J-shaped column. 813 provides an upward force, and the end of the J-shaped column 813 away from the third limiting circular table 8131 is always clamped in the through hole reserved at the end of the fixing plate 83 . The first fixing member 81 and the fixing plate 83 can be disassembled by pulling down the J-shaped column 813 .

The J-shaped column 813 is provided with a fourth limiting circular platform 8133 to abut the bottom of the first fixing member 81; The end of the J-shaped column 813 is away from the fourth chamber 812 .

The fourth limiting circular platform 8133 abuts against the bottom of the first fixing member 81 to prevent the curved portion of the J-shaped column 813 from being stuck on the first fixing member 81, which is inconvenient to pull down the J-shaped column 813. post 813 to realize the disassembly of the first fixing member 81 and the fixing plate 83 .

The first fixing member 81 is formed with a threaded through hole 815, and the threaded through hole 815 is located above the clamping groove 811; the threaded through hole 815 is screwed with a threaded post 816, and the threaded post 816 is hollow structure.

FIG. 10 is a schematic structural diagram of a threaded post in an agricultural drone and its interior according to an embodiment of the present disclosure. An embodiment of the agricultural drone of the present disclosure will be described below with reference to FIG. 10 .

The threaded post 816 is provided with a top ball 8161 and a top-up spring 8162, the top ball 8161 passes through and is clamped to the bottom of the threaded post 816; Cavity top and the top bead 8161.

When the end of the fixing plate 83 is inserted into the clamping groove 811 , the J-shaped column 813 is snapped into the through hole at the end of the fixing plate 83 , and the top ball 8161 passes through the threaded column 816 . The bottom part is pressed against the fixing plate 83 to prevent the fixing plate 83 from shaking in the clamping groove 811 and improve the stability of the connection between the fixing plate 83 and the first fixing member 81 .

A battery handle 41 is hinged on the side of the battery 4 away from the hinged joint between the limit frame 71 and the limit cover 72 . By pulling the battery handle 41 , the battery 4 can be quickly taken out and installed, so as to facilitate the rapid replacement of the battery 4 .

The present disclosure provides an agricultural drone, comprising a fuselage 1 , a first tripod 2 , a second tripod 3 , a battery 4 and a medicine box 5 . The first tripod 2 is fixedly connected to the fuselage 1 . At the bottom, the second tripod 3 is fixedly connected to the first tripod 2 through a mounting frame 6 , the battery 4 is fixed to the mounting frame 6 through a battery limiter 7 , and the medicine box 5 is connected by The component 8 is fixedly connected to the first leg frame 2 and the second leg frame 3 . With the above device, when the agricultural drone lands, the impact force caused by the weight of the battery 4 is transmitted to the first tripod 2 , the mounting frame 6 and the second tripod 3 . The impact force brought by the weight of the medicine box 5 is transmitted to the first tripod 2 and the second tripod 3 , and the fuselage 1 only overcomes the impact brought by the weight of the fuselage 1 It reduces the vibration generated by the fuselage 1 and improves the stability of the connection of various components in the fuselage 1 .

Claims

An agricultural drone, comprising a fuselage, a first tripod, a second tripod, a battery and a medicine box;

The first tripod is fixedly connected to the bottom of the fuselage; the second tripod is fixedly connected to the first tripod through an installation frame; the battery is fixed on the installation frame through a battery limiter; The medicine box is fixedly connected to the first tripod and the second tripod through a connecting piece.
The agricultural drone according to claim 1, wherein the first tripod comprises two sets of symmetrical support rods; the ends of each set of the support rods are fixedly connected to the bottom of the fuselage.
The agricultural drone according to claim 2, wherein the second tripod comprises two symmetrical closed-loop support frames; the two closed-loop support frames are fixedly connected to two sides of the mounting frame.
The agricultural drone according to claim 3, wherein the mounting frame comprises two carbon plates parallel to each other, a connecting frame between the two carbon plates and a first pipe clamp;

The connecting frame includes two second pipe clamps sleeved on the support rod and a connecting rod connecting the two second pipe clamps; the first pipe clamp is sleeved on the closed-loop support frame.
The agricultural drone according to claim 4, wherein the battery limiter comprises two limiters fixed on the carbon plate and parallel to each other, and two limiters hinged to the ends of the two limiters respectively. a limit cover, and a battery quick-release part hinged with the limit cover;

The two limit frames clamp the battery in a direction parallel to the upper surface of the carbon plate; the limit cover and the carbon plate clamp the battery in a direction perpendicular to the upper surface of the carbon plate. the battery;

An extension part is provided on the end of the limit cover away from the limit frame and the limit cover, and the extension part is used for clamping the battery in a direction parallel to the upper surface of the carbon plate;

One end of the battery quick release member away from the limiting cover penetrates through the limiting frame and is movably connected with the limiting frame.
The agricultural unmanned aerial vehicle according to claim 5, wherein the battery quick-release part comprises a casing, a support column, a locking rod, a first return spring sleeved on the support column, and a first return spring sleeved on the locking rod Two return springs;

A first chamber, a second chamber and a third chamber are formed in the shell;

the outer shell is fixedly connected in the limit frame, one end of the support column is hinged to the limit cover, and the other end of the support column penetrates the limit frame and the second chamber in sequence;

The support column is provided with a first limiting circular platform, and both ends of the first return spring abut the limiting frame and the first limiting circular platform respectively;

A first limiting tooth is arranged on the side of the support column close to the extension part, and the end of the locking rod passes through the first chamber, the second chamber and the third chamber in sequence, so The locking rod is fixedly connected with a second limit tooth that is matched with the first limit tooth and has an opposite tooth direction;

The end of the locking rod is provided with a second limiting circular platform, and both ends of the second return spring are respectively abutted against the second limiting circular platform and the inner wall of the third chamber.
The agricultural drone according to claim 6, wherein the battery quick-release part further comprises a limit shaft;

The end of the support column away from the limit cover is provided with a vertical waist-shaped hole; the outer shell is provided with a horizontal waist-shaped hole, and the horizontal waist-shaped hole penetrates the limit frame; the limit shaft At the same time, the vertical waist-shaped hole and the lateral waist-shaped hole are connected through.
The agricultural unmanned aerial vehicle according to claim 4, wherein the connecting piece comprises a first fixing piece sleeved on the support rod, a second fixing piece sleeved on the closed-loop support frame, respectively connecting the the fixing plates of the first fixing member and the second fixing member and the connecting block connecting the medicine box and the fixing plate;

A clamping groove for accommodating the fixing plate is formed on the first fixing piece; a fourth cavity is formed in the first fixing piece; the fourth cavity penetrates the upper surface of the first fixing piece;

The first fixing member is provided with a J-shaped column, and one end of the J-shaped column penetrates the first fixing member and the fourth chamber and extends above the upper surface of the first fixing member; the The other end of the J-shaped column extends through the first fixing member into the clamping groove;

The end of the J-shaped column close to the fourth chamber is provided with a third limiting circular platform; the J-shaped column is sleeved with a third return spring; the two ends of the third return spring are respectively abutted against the the bottom of the fourth chamber and the third limiting circular platform;

The J-shaped column is provided with a fourth limiting circular platform to abut the bottom of the fixing member; the first fixing member is formed with a clamping groove, and the clamping groove is used to accommodate the J-shaped column away from the the end of the fourth chamber.
The agricultural drone according to claim 8, wherein the first fixing member is formed with a threaded through hole, and the threaded through hole is located above the clamping groove; a threaded column is screwed in the threaded through hole, The threaded column is a hollow structure;

The threaded column is provided with a top ball and a top spring, the top ball passes through and is clamped to the bottom of the threaded column; both ends of the top spring abut against the top of the threaded column cavity and the top ball respectively .
The agricultural drone according to claim 5, wherein a battery handle is hinged on a side of the battery away from the hinge of the limit frame and the limit cover.