1. The utility model provides a pesticide sprays plant protection unmanned aerial vehicle, includes plant protection unmanned aerial vehicle body (1), its characterized in that: the bottom of plant protection unmanned aerial vehicle body (1) is equipped with prevents weighing down frame (2), prevent weighing down frame (2) and include two nearly shape poles (20), be equipped with two strengthening ribs (21) between two nearly shape poles (20), the both ends of two strengthening ribs (21) are in the same place with how shape pole (20) fixed connection that corresponds respectively, two bottom equal fixed mounting of nearly shape pole (20) have a buffer frame (23), the one end fixedly connected with shower nozzle (24) of buffer frame (23), the other end bottom fixedly connected with backup pad (25) of buffer frame (23), fixedly connected with gasbag (26) above backup pad (25), the other end of buffer frame (23) just is located gasbag (26) upper end fixedly connected with pivot (27), the surface fixedly connected with cam (28) of pivot (27), the other end fixedly connected with flabellum (29) of pivot (27), buffer frame (23) include arc piece (231), rectangular channel (232) have been seted up at the top of arc piece (231), slidable mounting has two slider (233) in rectangular channel (232), horizontal pole (236) one end slides and runs through two slider (233) and fix at constant head tank (238) inner wall, fixedly connected with spring (237) between slider (233), spring (237) slip cover is established on horizontal pole (236), spring (237) are located the middle part of rectangular channel (232), and the intermediate position and horizontal pole (236) fixed connection of spring (237), two the top of slider (233) all articulates there is swash plate (234), two the top of swash plate (234) articulates there is same rectangular block (235), the bottom fixed connection of the top of rectangular block (235) and several shape pole (20) is in the same place.

2. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: the bottom of the sliding block (233) is nested with a ball, and the ball is in rolling connection with the inner wall of the bottom of the rectangular groove (232).

3. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: shower nozzle (24) set up to hollow structure, a plurality of medicine mouths of spouting have been seted up to shower nozzle (24) side, the top of shower nozzle (24) has been seted up into medicine mouth, the one end of advancing medicine mouth passes through the pencil and goes out medicine mouth fixed connection of medical kit.

4. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: a few shape pole (20) are gone up fixed mounting and are had two mounting brackets (22), and two mounting brackets (22) all are in the same place with the bottom fixed connection of plant protection unmanned aerial vehicle body (1).

5. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: the medicine box is characterized in that the cam (28) is movably connected with the air bag (26), an air outlet is formed in the bottom end of the air bag (26), an exhaust valve is fixedly connected to the air outlet of the air bag (26), and the other end of the exhaust valve is fixedly connected with an air inlet of the medicine box through an air pipe.

6. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: the bottom of the rectangular block (235) is fixedly provided with a hinge frame, and the tops of the two inclined plates (234) are hinged together with the hinge frame.

7. The pesticide spraying plant protection unmanned aerial vehicle of claim 1, characterized in that: the spring (237) has a stiffness coefficient of 100N/m.

Background

Plant protection unmanned aerial vehicle, also known as unmanned vehicles, consider that the name is an unmanned aerial vehicle who is used for agriculture and forestry plant protection operation, this type unmanned aerial vehicle is by flight platform, the navigation flies the accuse, spray mechanism triplex, fly the accuse through ground remote control or navigation, realize spraying the operation, can spray the medicament, seeds, powder etc., along with the continuous development of science and technology, plant protection unmanned aerial vehicle is also more common in the agricultural application, be one of unmanned aerial vehicle's part during the unmanned aerial vehicle undercarriage, mainly used provides the support for unmanned aerial vehicle, be convenient for unmanned aerial vehicle take off and land.

However, traditional unmanned aerial vehicle undercarriage usually has some defects in the use, for example, current unmanned aerial vehicle undercarriage can not play buffering and absorbing effect, and in the twinkling of an eye of landing, the unmanned aerial vehicle will receive great impact load, brings various impact damage for equipment on the unmanned aerial vehicle, for this reason, provides a pesticide and sprays plant protection unmanned aerial vehicle.

Disclosure of Invention

The invention specifically provides a pesticide spraying plant protection unmanned aerial vehicle, and aims to solve the following problems:

1. the existing unmanned aerial vehicle undercarriage can not play the roles of buffering and shock absorption.

2. At the moment of landing, the unmanned aerial vehicle can be subjected to larger impact load, and various impact damages are brought to equipment on the unmanned aerial vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme: a pesticide spraying plant protection unmanned aerial vehicle comprises a plant protection unmanned aerial vehicle body, wherein an anti-falling frame is arranged at the bottom of the plant protection unmanned aerial vehicle body and comprises two n-shaped rods, two reinforcing ribs are arranged between the two n-shaped rods, two ends of the two reinforcing ribs are respectively and fixedly connected with the corresponding n-shaped rods, two bottom ends of the n-shaped rods are respectively and fixedly provided with a buffer frame, and the buffer frame is used for buffering when the unmanned aerial vehicle rises and falls; one end of the buffer frame is fixedly connected with a spray head, and the spray head is arranged to spray the medicament; the other end of the buffer frame is fixedly connected with a supporting plate, an air bag is fixedly connected above the supporting plate, a rotating shaft is fixedly connected to the other end of the buffer frame and positioned at the upper end of the air bag, a cam is fixedly connected to the outer surface of the rotating shaft, a fan blade is fixedly connected to the other end of the rotating shaft, the fan blade is driven to rotate by wind, the rotating shaft drives the cam to rotate to extrude the air bag to inflate the air bag; the buffering frame comprises an arc-shaped block, a rectangular groove is formed in the top of the arc-shaped block, two sliding blocks are installed in the rectangular groove in a sliding mode, one end of the cross rod penetrates through the two sliding blocks in a sliding mode and is fixed to the inner wall of the positioning groove, a spring is fixedly connected between the sliding blocks, the spring is sleeved on the cross rod in a sliding mode, the spring is located in the middle of the rectangular groove, the middle of the spring is fixedly connected with the cross rod, and the spring is used for achieving good energy absorption and shock absorption when the unmanned aerial vehicle rises and; two the top of slider all articulates there is the swash plate, two the top of swash plate articulates there is same rectangular block, the bottom fixed connection of the top of rectangular block and nearly shape pole is in the same place.

As an embodiment of the invention, the bottom of the sliding block is nested with the ball, the ball is in rolling connection with the inner wall of the bottom of the rectangular groove, and the abrasion between the sliding block and the rectangular groove can be reduced by arranging the ball.

As an embodiment of the invention, the spray head is of a hollow structure, a plurality of medicine spraying ports are formed in the side surface of the spray head, a medicine inlet is formed in the top of the spray head, one end of the medicine inlet is fixedly connected with the medicine outlet of the medicine box through a medicine pipe, and the spray head is arranged to facilitate uniform medicine spraying.

As an embodiment of the invention, two mounting frames are fixedly mounted on the n-shaped rod, the two mounting frames are fixedly connected with the bottom of the plant protection unmanned aerial vehicle body, and the mounting frames are arranged to facilitate disassembly, replacement and maintenance.

In an embodiment of the invention, the cam is movably connected with the air bag, an exhaust port is formed at the bottom end of the air bag, an exhaust valve is fixedly connected with the exhaust port of the air bag, the other end of the exhaust valve is fixedly connected with an air inlet of the medicine box through an air pipe, the air bag is arranged to facilitate gas storage, the air bag is used for squeezing the medicine in the medicine box into the spray head when spraying the medicine, and the exhaust valve is arranged to facilitate control of the gas in the air bag into the medicine box, so that the medicine in the medicine box is squeezed and sprayed.

As an embodiment of the invention, the bottom of the rectangular block is fixedly provided with a hinge frame, the tops of the two sloping plates are hinged with the hinge frame, and the sloping plates and the rectangular block can move by arranging the hinge frame.

As an embodiment of the invention, the stiffness coefficient of the spring is 100N/m, the rectangular block is impacted downwards through the N-shaped rod under the self gravity action of the plant protection unmanned aerial vehicle body, when the rectangular block moves downwards, the two sloping plates are driven to rotate around the hinge frame and to be away from each other, the two sloping plates drive the two sliding blocks to be away from each other, and the sliding blocks stretch the spring, and the sliding blocks are ensured to slide in the rectangular groove by setting the stiffness coefficient of the spring.

Compared with the prior art, the invention has the beneficial effects that:

1. when the plant protection unmanned aerial vehicle body starts to work, blades on the plant protection unmanned aerial vehicle body rotate to drive blades on the buffer frame to rotate, the blades drive the cam to rotate to extrude the air bag to inflate the air bag, when the air is stored to open the exhaust valve, the air in the air bag enters the medicine box through the air pipe to extrude the medicine in the medicine box, and the medicine flows into the spray head through the medicine pipe to be sprayed, so that the automatic spraying of the medicine is realized; when the landing is accomplished to plant protection unmanned aerial vehicle body work, prevent weighing down four buffer racks on the frame will at first with the ground contact, in buffer rack and ground contact, the arc piece will be at first with the ground contact, later will strike the rectangular block downwards through several shape poles under the self action of gravity of plant protection unmanned aerial vehicle body, will drive two swash plates and use articulated frame to rotate and keep away from each other as the centre of a circle when the rectangular block moves down, two swash plates drive two sliders and keep away from each other again, under the buffering of two springs, will the heavy impact force carry out effectual buffering, thereby play the effect of protection plant protection unmanned aerial vehicle body.

2. The invention has compact structure, light weight and low manufacturing cost, can play good energy absorption, buffering and shock absorption effects when being subjected to impact load, thereby playing a better protection role when the unmanned aerial vehicle is lifted and dropped, and can also realize the automatic spraying of the medicament by using the wind power carried by the unmanned aerial vehicle when the unmanned aerial vehicle works as the power.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the fall protection frame of the present invention;

fig. 3 is a front sectional structural view of the buffer frame of the present invention.

In the figure: 1. a plant protection unmanned aerial vehicle body; 2. the anti-falling frame; 20. a n-shaped rod; 21. reinforcing ribs; 22. a mounting frame; 23. a buffer frame; 24. a spray head; 25. a support plate; 26. an air bag; 27. a rotating shaft; 28. a cam; 29. a fan blade; 231. an arc-shaped block; 232. a rectangular groove; 233. a slider; 234. a sloping plate; 235. a rectangular block; 236. a cross bar; 237. a spring; 238. and (6) positioning a groove.

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. 1-3, the present invention provides a technical solution: a pesticide spraying plant protection unmanned aerial vehicle comprises a plant protection unmanned aerial vehicle body 1, wherein an anti-falling frame 2 is arranged at the bottom of the plant protection unmanned aerial vehicle body 1, the anti-falling frame 2 comprises two n-shaped rods 20, two reinforcing ribs 21 are arranged between the two n-shaped rods 20, two ends of each reinforcing rib 21 are respectively and fixedly connected with the corresponding n-shaped rod 20, two bottom ends of each n-shaped rod 20 are respectively and fixedly provided with a buffer frame 23, and the buffer frames 23 are arranged for buffering when the unmanned aerial vehicle rises and falls; one end of the buffer frame 23 is fixedly connected with a spray head 24, and the medicament is sprayed by arranging the spray head 24; the other end of the buffer frame 23 is fixedly connected with a support plate 25, an air bag 26 is fixedly connected above the support plate 25, the other end of the buffer frame 23 and positioned at the upper end of the air bag 26 are fixedly connected with a rotating shaft 27, the outer surface of the rotating shaft 27 is fixedly connected with a cam 28, the other end of the rotating shaft 27 is fixedly connected with a fan blade 29, the fan blade 29 is driven by wind to rotate, the rotating shaft 27 is driven by the fan blade 29, and the cam 28 is driven by the rotating shaft 27 to rotate to extrude the air bag 26 to inflate the air bag 26; the buffer frame 23 comprises an arc-shaped block 231, a rectangular groove 232 is formed in the top of the arc-shaped block 231, two sliding blocks 233 are slidably mounted in the rectangular groove 232, one end of a cross rod 236 penetrates through the two sliding blocks 233 in a sliding mode and is fixed to the inner wall of a positioning groove 238, a spring 237 is fixedly connected between the sliding blocks 233, the spring 237 is sleeved on the cross rod 236 in a sliding mode, the spring 237 is located in the middle of the rectangular groove 232, the middle of the spring 237 is fixedly connected with the cross rod 236, and the spring 237 is arranged to play a good role in absorbing energy and shock when the unmanned aerial vehicle rises and falls; the tops of the two sliding blocks 233 are hinged with inclined plates 234, the tops of the two inclined plates 234 are hinged with a same rectangular block 235, and the tops of the rectangular blocks 235 are fixedly connected with the bottom ends of the bar rods 20.

In one embodiment of the present invention, the bottom of the slider 233 is nested with a ball, and the ball is in rolling contact with the inner wall of the bottom of the rectangular groove 232, so that the wear between the slider 233 and the rectangular groove 232 can be reduced by the ball.

As an embodiment of the invention, the spray head 24 is of a hollow structure, the side surface of the spray head 25 is provided with a plurality of medicine spraying openings, the top of the spray head 24 is provided with a medicine inlet, one end of the medicine inlet is fixedly connected with the medicine outlet of the medicine box through a medicine pipe, and the spray head 24 is arranged to facilitate even medicine spraying.

As an embodiment of the invention, two mounting brackets 22 are fixedly mounted on the n-shaped rod 20, both the two mounting brackets 22 are fixedly connected with the bottom of the plant protection unmanned aerial vehicle body 1, and the mounting brackets are arranged to facilitate disassembly, replacement and maintenance.

In one embodiment of the present invention, the cam 28 is movably connected to the air bag 26, an exhaust port is opened at the bottom end of the air bag 26, an exhaust valve is fixedly connected to the exhaust port of the air bag 26, the other end of the exhaust valve is fixedly connected to the air inlet of the medicine box through an air pipe, the air bag 26 is provided to facilitate air storage, the air bag is used to squeeze the medicine in the medicine box into the spray head 24 when spraying the medicine, and the exhaust valve is provided to facilitate control of the air in the air bag 26 to enter the medicine box, thereby squeezing the medicine in the medicine box for spraying.

In one embodiment of the present invention, a hinge frame is fixedly installed at the bottom of the rectangular block 235, the top of each of the two tilting plates 234 is hinged to the hinge frame, and the tilting plates and the rectangular block are movable by the hinge frame.

As an embodiment of the present invention, the stiffness coefficient of the spring 237 is 100N/m, and the rectangular block 235 will be impacted downwards by the N-shaped rod 20 under the self gravity of the plant protection unmanned aerial vehicle body 1, so that when the rectangular block 235 moves downwards, the two sloping plates 234 will be driven to rotate around the hinge bracket as a circle center and move away from each other, the two sloping plates 234 will drive the two sliding blocks 233 to move away from each other, and the sliding blocks 233 stretch the spring 237, and the sliding blocks 233 are ensured to slide in the rectangular grooves 232 by setting the stiffness coefficient of the spring 237.

The working principle is as follows: when the plant protection unmanned aerial vehicle body 1 starts to work, the blades on the plant protection unmanned aerial vehicle body 1 rotate to drive the fan blades 29 on the buffer frame 23 to rotate, the fan blades 29 drive the cam 28 to rotate to extrude the air bag 26 to inflate the air bag 26, when the air is stored to be capable of opening the exhaust valve, the air in the air bag 29 enters the medicine box through the air pipe to extrude the medicine in the medicine box, and the medicine flows into the spray head 24 through the medicine pipe to be sprayed, so that the automatic spraying of the medicine is realized; when plant protection unmanned aerial vehicle body 1 has worked the landing, prevent weighing down four buffer frame 23 on the frame 2 will be at first with ground contact, in buffer frame 23 and ground contact, arc piece 231 will be at first with ground contact, later will strike rectangular block 235 through a few shape pole 20 downwards under plant protection unmanned aerial vehicle body 1's self action of gravity, will drive two swash plates 234 when rectangular block 235 moves down and use articulated frame to rotate and keep away from each other as the centre of a circle, two swash plates 234 drive two sliders 233 each other and keep away from, slider 233 extension spring 237, under the buffering of spring 237, thereby play the effect of protection unmanned aerial vehicle body 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.