阅读说明：本技术 一种防坠落植保无人机 (Anti-falling plant protection unmanned aerial vehicle ) 是由 张雷 程军 崔磊 贾啸傲 孙伟 路明顺 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种防坠落植保无人机,涉及无人机技术领域,包括框架,所述框架的侧面四角均固定连接有电动伸缩杆,所述框架的顶部四角均固定连接有起升架,所述起升架的中间固定连接有支路控制阀。本发明通过设置电动伸缩杆,在植保无人机起飞之后能够通过要控制控制电动伸缩杆收缩,利用顶部转杆带动底部转杆旋转,使底部支架与顶部支架之间折弯,达到将起落支架收起的目的,通过设置支路控制阀,能够控制四个起升架底部的喷药头和助力头的喷药时间,并且在电控箱内部控制器检测到无人机由于动力电机故障飞行失控的时候,通过控制单个支路控制阀对失去动力的起升架助力,从而达到防止无人机失控坠落的目的。(The invention discloses a falling-prevention plant protection unmanned aerial vehicle, which relates to the technical field of unmanned aerial vehicles and comprises a frame, wherein four corners of the side surface of the frame are fixedly connected with electric telescopic rods, four corners of the top of the frame are fixedly connected with lifting frames, and the middle of each lifting frame is fixedly connected with a branch control valve. According to the invention, by arranging the electric telescopic rod, after the plant protection unmanned aerial vehicle takes off, the electric telescopic rod can be controlled to contract, the top rotating rod is utilized to drive the bottom rotating rod to rotate, so that the space between the bottom support and the top support is bent, and the purpose of folding the lifting support is achieved.)

1. The utility model provides a prevent plant protection unmanned aerial vehicle that falls, includes frame (5), its characterized in that: the four sides of the frame (5) are fixedly connected with electric telescopic rods (10), the four bottom corners of the frame (5) are movably connected with top supports (22) through pin shafts, the bottom of each top support (22) is movably connected with a bottom support (23) through a bottom pin shaft, one end of each bottom pin shaft is fixedly connected with a bottom rotating rod (30), the middle of each top support (22) is movably connected with a push-pull rod (33) and a top rotating rod (32) through a top pin shaft, the push-pull rod (33) and the top rotating rod (32) are respectively and fixedly connected with the middle and one end of each pin shaft, the bottom rotating rod (30) is movably connected with a transmission rod (31) through a pin shaft, one end of the transmission rod (31) is movably connected with one end of the top rotating rod (32) through a pin shaft, and the bottom of each electric telescopic rod (, the connecting lug is movably connected with the top of the push-pull rod (33) through a pin shaft; lifting frames (4) are fixedly connected to four corners of the top of the frame (5), a branch control valve (11) is fixedly connected to the middle of each lifting frame (4), a medicine spraying head (12) is fixedly connected to the middle of the bottom of each lifting frame (4), a power assisting head (13) is fixedly connected to one end of the bottom of each lifting frame (4), a motor shell (3) is fixedly connected to one end of each lifting frame (4), and a power motor (2) is welded inside each motor shell (3); a transverse partition plate is arranged in the middle of the frame (5), an electric cabinet (17) is fixedly connected to one side of the bottom of the transverse partition plate, plunger pumps (16) are fixedly connected to two symmetrical side faces of the electric cabinet (17), a water outlet pipe of each plunger pump (16) is connected with a main pipe (15) through a high-pressure hose, the main pipe (15) is communicated with the pesticide spraying head (12) and the power assisting head (13) through branch pipes, and the branch control valve (11) is arranged in the middle of a straight pipe; the middle of the bottom of the transverse partition board is fixedly connected with a transformation box (20), one side face of the transformation box (20) is provided with a storage battery (21), and the top of the transverse partition board is clamped with a liquid medicine box (7).

2. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: the top of liquid medicine case (7) is provided with the pencil, the top threaded connection of pencil has with medicine lid (8), connecting bolt (9) fixedly connected with and liquid medicine case (7) looks adaptation anticreep board (6) are passed through at the top of frame (5).

3. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: the bottom wall in frame (5) sets up spout (27) with battery (21) looks adaptation, the bottom fixedly connected with of battery (21) and the spacing slider of spout (27) looks adaptation, a side fixedly connected with handle area (24) of battery (21).

4. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: spring groove (35) have been seted up to the bottom one side of frame (5), the interior diapire fixedly connected with of spring groove (35) pushes up tight spring (36), the top fixedly connected with kelly (28) of pushing up tight spring (36), draw-in groove (34) with kelly (28) looks adaptation are seted up to the bottom of battery (21).

5. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: a connecting pipeline is arranged in the pressure changing box (20), one end of the connecting pipeline is communicated with the bottom of the liquid medicine box (7), the other end of the connecting pipeline is fixedly connected with a flow tube (18) through a detachable joint (19), and the flow tube (18) is communicated with a water inlet of the plunger pump (16) through a water inlet pipe.

6. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: the monitoring device is characterized in that a monitoring box (25) is fixedly connected to the middle of the bottom of the frame (5), a radar (26) is fixedly connected to the bottom of the monitoring box (25), and cameras are arranged on the side faces of two sides of the monitoring box (25).

7. The unmanned aerial vehicle for fall protection and plant protection of claim 6, wherein: the transformer is arranged in the transformation box (20), the transformer is electrically connected with a storage battery (21) and a controller in the electric cabinet (17) through leads, and the controller is electrically connected with the monitoring box (25), the plunger pump (16) and the power motor (2) through leads.

8. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: the output shaft of the power motor (2) is fixedly connected with an installation column, and the side surface of the installation column is fixedly connected with a propeller (1).

9. The unmanned aerial vehicle for fall protection and plant protection of claim 1, wherein: the bottom of top support (22) is provided with limiting plate (29) with bottom support (23) looks adaptation, the bottom fixedly connected with of bottom support (23) falls ball (14).

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a falling-prevention plant protection unmanned aerial vehicle.

Background

Currently, with the rapid development of agriculture and science and technology in China, unmanned aerial vehicles are widely used in the field of agriculture, such as plant protection unmanned aerial vehicles, agricultural unmanned aerial vehicles are unmanned aerial vehicles used in agriculture, and the purpose is to help improve crop yield and monitor crop growth. Its sensors and digital imaging capabilities can help farmers become more aware of their fields and help to improve crop yield and farm efficiency. Plant protection unmanned aerial vehicle also main application in the agricultural is to spray the pesticide, and it has great advantage to spray the pesticide to compare the tradition is manual, can save a lot of manpowers and improvement pesticide that can be by a wide margin sprays efficiency. Because plant protection unmanned aerial vehicle technique is still not too ripe, the in-process that uses has appeared not few fried quick-witted incident, can directly lead to unmanned aerial vehicle to destroy when serious, and unmanned aerial vehicle cost is high, can cause very big economic loss.

At present, plant protection unmanned aerial vehicle's software control system has been very perfect, rarely take place the condition out of control when unmanned aerial vehicle uses, but the motor quantity that uses on the unmanned aerial vehicle is more, and unmanned aerial vehicle needs the motor to drive the screw when using and carries out the frequency conversion and rotate, therefore the probability that the motor broke down is very big, can lead to unmanned aerial vehicle serious unbalance when the motor broke down, thereby make unmanned aerial vehicle fall and take place the fried machine incident, and current plant protection unmanned aerial vehicle support that rises and falls can not adjust, when spraying the pesticide to the fruit tree, because the fruit tree height is different, when plant protection unmanned aerial vehicle carries out altitude mixture control, make the support that rises and falls touch the fruit tree top very easily, thereby cause unmanned aerial vehicle to lose balance and.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a falling-prevention plant protection unmanned aerial vehicle which has the advantages of capability of assisting in landing after a motor failure and preventing falling by remote control of retraction and extension of an undercarriage, and solves the problems in the prior art.

(II) technical scheme

In order to realize the purpose of assisting in landing and preventing falling of the landing gear by remote control retraction and extension after the motor failure, the invention provides the following technical scheme: an anti-falling plant protection unmanned aerial vehicle comprises a frame, wherein four corners of the side surface of the frame are fixedly connected with electric telescopic rods, four corners of the bottom of the frame are movably connected with a top support through pin shafts, the bottom of the top support is movably connected with a bottom support through a bottom pin shaft, one end of the bottom pin shaft is fixedly connected with a bottom rotating rod, the middle of the top support is movably connected with a push-pull rod and a top rotating rod through a top pin shaft, the push-pull rod and the top rotating rod are respectively and fixedly connected with the middle part and one end of the pin shaft, the bottom rotating rod is movably connected with a transmission rod through a pin shaft, one end of the transmission rod is movably connected with one end of the top rotating rod through a pin shaft, the bottom of each electric telescopic rod is fixedly connected with a connecting; four corners of the top of the frame are fixedly connected with lifting frames, branch control valves are fixedly connected in the middles of the lifting frames, a medicine spraying head is fixedly connected in the middle of the bottom of each lifting frame, a power assisting head is fixedly connected to one end of the bottom of each lifting frame, a motor shell is fixedly connected to one end of each lifting frame, and a power motor is welded inside the motor shell; a transverse partition plate is arranged in the middle of the frame, an electric cabinet is fixedly connected to one side of the bottom of the transverse partition plate, plunger pumps are fixedly connected to two symmetrical side faces of the electric cabinet, a water outlet pipe of each plunger pump is connected with a main pipe through a high-pressure hose, the main pipe is communicated with the medicine spraying head and the power assisting head through branch pipes, and the branch control valve is arranged in the middle of the straight pipe; the middle of the bottom of the transverse partition plate is fixedly connected with a transformation box, one side face of the transformation box is provided with a storage battery, and the top of the transverse partition plate is clamped with a liquid medicine box.

Preferably, the top of liquid medicine case is provided with the pencil of adding medicine, the top threaded connection of pencil of adding medicine has the lid of adding medicine, the top of frame is through connecting bolt fixedly connected with and the anticreep board of liquid medicine case looks adaptation.

Preferably, the inner bottom wall of the frame is provided with a sliding groove matched with the storage battery, the bottom of the storage battery is fixedly connected with a limiting sliding block matched with the sliding groove, and one side face of the storage battery is fixedly connected with a handle belt.

Preferably, a spring groove is formed in one side of the bottom of the frame, a jacking spring is fixedly connected to the inner bottom wall of the spring groove, a clamping rod is fixedly connected to the top of the jacking spring, and a clamping groove matched with the clamping rod is formed in the bottom of the storage battery.

Preferably, a connecting pipeline is arranged inside the pressure changing box, one end of the connecting pipeline is communicated with the bottom of the liquid medicine box, the other end of the connecting pipeline is fixedly connected with a flow tube through a detachable joint, and the flow tube is communicated with a water inlet of the plunger pump through a water inlet tube.

Preferably, the middle of the bottom of the frame is fixedly connected with a monitoring box, the bottom of the monitoring box is fixedly connected with a radar, and the side faces of two sides of the monitoring box are respectively provided with a camera.

Preferably, a transformer is arranged in the transformation box, the transformer is electrically connected with the storage battery and a controller in the electric cabinet through leads, and the controller is electrically connected with the monitoring box, the plunger pump and the power motor through leads.

Preferably, an output shaft of the power motor is fixedly connected with a mounting column, and a propeller is fixedly connected to the side surface of the mounting column.

Preferably, the bottom of the top support is provided with a limiting plate matched with the bottom support, and the bottom of the bottom support is fixedly connected with a falling ball.

Three beneficial effects

Compared with the prior art, the invention provides a falling-prevention plant protection unmanned aerial vehicle, which has the following beneficial effects:

1. this plant protection unmanned aerial vehicle that prevents falling through setting up electric telescopic handle, can make the middle part of push-and-pull rod pulling top support upwards rotate through wanting the shrink of control electric telescopic handle after plant protection unmanned aerial vehicle takes off, utilizes the top bull stick to drive the rotation of bottom bull stick, makes to bend between bottom support and the top support, reaches the purpose that the support that will rise and fall packed up.

2. This plant protection unmanned aerial vehicle prevents falling through setting up branch control valve, can control four and play to rise the medicine spraying time of medicine spraying head and the helping hand head of frame bottom to when electric cabinet internal control ware detects unmanned aerial vehicle because the power motor trouble flight is out of control, through controlling single branch control valve to losing the play to rise the frame helping hand of power, thereby reach the purpose that prevents unmanned aerial vehicle out of control and fall.

Drawings

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

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the clamping rod of the present invention.

In the figure: 1. a propeller; 2. a power motor; 3. a motor housing; 4. a hoisting frame; 5. a frame; 6. an anti-drop plate; 7. a liquid medicine box; 8. a medicine adding cover; 9. a connecting bolt; 10. an electric telescopic rod; 11. a bypass control valve; 12. a pesticide spraying head; 13. a booster head; 14. dropping the ball; 15. a header pipe; 16. a plunger pump; 17. an electric cabinet; 18. a flow tube; 19. disassembling the joint; 20. a voltage transformation box; 21. a storage battery; 22. a top support; 23. a bottom bracket; 24. a handle strap; 25. a monitoring box; 26. a radar; 27. a chute; 28. a clamping rod; 29. a limiting plate; 30. a bottom rotating rod; 31. a transmission rod; 32. a top rotating rod; 33. a push-pull rod; 34. a card slot; 35. a spring slot; 36. and tightly pushing the spring.

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. 1-4, an anti-falling plant protection unmanned aerial vehicle comprises a frame 5, four sides of the frame 5 are fixedly connected with electric telescopic rods 10, four bottom corners of the frame 5 are movably connected with a top support 22 through pin shafts, the bottom of the top support 22 is movably connected with a bottom support 23 through a bottom pin shaft, the bottom of the top support 22 is provided with a limit plate 29 matched with the bottom support 23, the bottom of the bottom support 23 is fixedly connected with a falling ball 14, one end of the bottom pin shaft is fixedly connected with a bottom rotating rod 30, the middle of the top support 22 is movably connected with a push-pull rod 33 and a top rotating rod 32 through a top pin shaft, the push-pull rod 33 and the top rotating rod 32 are respectively and fixedly connected with the middle part and one end of the pin shaft, the bottom rotating rod 30 is movably connected with a transmission rod 31 through a pin shaft, one end of, the bottom of the electric telescopic rod 10 is fixedly connected with a connecting lug, and the connecting lug is movably connected with the top of the push-pull rod 33 through a pin shaft; four corners of the top of the frame 5 are fixedly connected with lifting frames 4, the middle of each lifting frame 4 is fixedly connected with a branch control valve 11, the middle of the bottom of each lifting frame 4 is fixedly connected with a pesticide spraying head 12, one end of the bottom of each lifting frame 4 is fixedly connected with a booster head 13, one end of each lifting frame 4 is fixedly connected with a motor shell 3, a power motor 2 is welded inside each motor shell 3, an output shaft of each power motor 2 is fixedly connected with an installation column, and the side surface of each installation column is fixedly connected with a propeller 1; a transverse partition plate is arranged in the middle of the frame 5, an electric cabinet 17 is fixedly connected to one side of the bottom of the transverse partition plate, plunger pumps 16 are fixedly connected to two symmetrical side surfaces of the electric cabinet 17, a water outlet pipe of each plunger pump 16 is connected with a main pipe 15 through a high-pressure hose, the main pipe 15 is communicated with the pesticide spraying head 12 and the booster head 13 through branch pipes, and a branch control valve 11 is arranged in the middle of each straight pipe; a monitoring box 25 is fixedly connected in the middle of the bottom of the frame 5, a radar 26 is fixedly connected at the bottom of the monitoring box 25, cameras are arranged on the two side surfaces of the monitoring box 25, a transformation box 20 is fixedly connected in the middle of the bottom of the transverse partition plate, a connecting pipeline is arranged in the transformation box 20, one end of the connecting pipeline is communicated with the bottom of the liquid medicine box 7, the other end of the connecting pipeline is fixedly connected with a flow tube 18 through a disassembly joint 19, the flow tube 18 is communicated with a water inlet of the plunger pump 16 through a water inlet pipe, a storage battery 21 is arranged on one side surface of the transformation box 20, a sliding groove 27 matched with the storage battery 21 is arranged on the inner bottom wall of the frame 5, a limiting slide block matched with the sliding groove 27 is fixedly connected at the bottom of the storage battery 21, a handle belt 24 is fixedly connected on one side surface of the bottom of the frame 5, a spring, top fixedly connected with kelly 28 of top tension spring 36, draw-in groove 34 with kelly 28 looks adaptation is seted up to the bottom of battery 21, transverse partition's top joint has liquid medicine case 7, liquid medicine case 7's top is provided with the pencil that adds, the top threaded connection who adds the pencil has with medicine lid 8, connecting bolt 9 fixedly connected with and liquid medicine case 7 looks adaptation's anticreep board 6 is passed through at the top of frame 5, the inside of vary voltage box 20 is provided with the transformer, the transformer passes through the wire and is connected with battery 21 and the inside controller electricity of electric cabinet 17, the controller passes through wire and monitoring box 25, plunger pump 16, power motor 2 electricity is connected.

When the unmanned aerial vehicle takes off, firstly, the electric telescopic rod 10 is retracted through the remote controller, the bottom of the electric telescopic rod 10 drives the push-pull rod 33 to move upwards, the bottom of the push-pull rod 33 is utilized to drive the top support 22 to rotate upwards, because the push-pull rod 33 is fixedly connected with the top rotating rod 32 through the top pin shaft, when the top support 22 rotates, the included angle between the top support 22 and the top rotating rod 32 changes, the bottom rotating rod 30 is rotated through the transmission rod 31, the top rotating rod 32 rotates relative to the top support 22 to fold the undercarriage, when a pesticide is applied to a fruit tree, the undercarriage can be prevented from contacting with the fruit tree, the unmanned aerial vehicle is prevented from losing balance due to the contact of the undercarriage and the fruit tree, when the unmanned aerial vehicle descends, the electric telescopic rod 10 extends to release the undercarriage, when the limiting plate 29 is tightly propped against the bottom support 23, the, helping the unmanned aerial vehicle to land; when plant protection unmanned aerial vehicle makes certain power motor 2 break down because the live time overlength, all the other three branch control valves 11 of controller control of electric cabinet 17 inside are closed, concentrate on the power that loses power that all pesticides spout downwards lifting frame 4, utilize the reaction force that the pesticide spouts downwards to make unmanned aerial vehicle keep balance to prevent because the power motor 2 trouble causes the crash incident to take place.

In conclusion, this plant protection unmanned aerial vehicle that prevents falling is through setting up electric telescopic handle 10, can control the shrink of electric telescopic handle 10 through will controlling after plant protection unmanned aerial vehicle takes off, make the middle part of push-and-pull rod 33 pulling top support 22 upwards rotate, it is rotatory to utilize top bull stick 32 to drive bottom bull stick 30, make and bend between bottom support 23 and the top support 22, reach the purpose that the support that will rise and fall packed up, through setting up branch control valve 11, can control the medicine spraying time of medicine spraying head 12 and helping hand head 13 of four hoisting frame 4 bottoms, and when electric cabinet 17 internal control ware detected unmanned aerial vehicle because power motor 2 trouble flight is out of control, through controlling single branch control valve 11 to the hoisting frame 4 helping hand that loses power, thereby reach the mesh that prevents that unmanned aerial vehicle from falling out of control.

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. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

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.