An agricultural protection unmanned aerial vehicle

Abstract

This utility model relates to the field of agricultural drone technology, and more particularly to a plant protection drone, comprising: a fuselage, the fuselage being rectangular, with four arms symmetrically arranged at the four corners of the fuselage, each arm having a rotor at its top; a landing gear at the bottom of the fuselage, the landing gear comprising: fixed rods, telescopic rods, springs, and support cross tubes; four fixed rods symmetrically arranged on the left and right sides of the bottom of the fuselage; four telescopic rods slidably connected to the lower parts of the four fixed rods; four springs respectively arranged between the four fixed rods and the four telescopic rods; two support cross tubes symmetrically fixedly connected to the bottom ends of two telescopic rods on the same front and rear sides; two screws vertically penetrating and threadedly connected to the left and right sides of each support cross tube; a medicine tank detachably fixedly installed at the bottom of the fuselage, the medicine tank containing an anti-vibration component to reduce the amplitude of pesticide sloshing; this utility model provides a plant protection drone that can improve landing stability and turning stability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural drone technology, and in particular to a plant protection drone. Background Technology

[0002] With the development of technology, agricultural production is becoming increasingly intelligent, and drones are beginning to be used in agricultural production. Plant protection drones can spray pesticides and fertilizers from the air, and are highly flexible in use. The emergence of plant protection drones has greatly improved production efficiency and saved manpower and material resources. Plant protection drones have become an effective way to solve the problems of strengthening intensive management of rural land and the increasing shortage of labor.

[0003] Currently, when agricultural drones land on fields, the uneven terrain makes it difficult for them to land stably. At the same time, when agricultural drones turn during operation, the liquid in the tank shakes significantly due to inertia, which can affect the normal flight of the drone and increase the instability of its operation. Utility Model Content

[0004] The purpose of this utility model is to provide an agricultural drone to solve the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An agricultural drone includes: a fuselage, which is rectangular, with four arms symmetrically arranged at the four corners of the fuselage, each arm having a rotor at its top; a landing gear at the bottom of the fuselage, the landing gear including: fixed rods, telescopic rods, springs, and support cross tubes; four fixed rods, four telescopic rods, and four springs; four fixed rods symmetrically arranged on the left and right sides of the bottom of the fuselage; four telescopic rods slidably connected to the lower parts of the four fixed rods; four springs are respectively arranged between the four fixed rods and the four telescopic rods; two support cross tubes are symmetrically fixedly connected to the bottom ends of two telescopic rods on the same side; two screws are vertically threaded through and threaded onto the left and right sides of each support cross tube, with the screw tips facing downwards; a medicine tank is detachably fixedly installed at the bottom of the fuselage, and the medicine tank contains an anti-vibration component to reduce the amplitude of medicine liquid sloshing.

[0007] Furthermore, the upper end of the telescopic rod is provided with a sliding groove with a T-shaped cross section, the fixed rod has a T-shaped cross section, the lower end of the fixed rod is axially slidably connected in the sliding groove, and the two ends of the spring press against the bottom end of the sliding groove and the bottom end of the fixed rod, respectively.

[0008] Furthermore, two support legs are symmetrically arranged on the left and right sides of the bottom end of the supporting horizontal tube.

[0009] Furthermore, it also includes: crossbars, nut one, booms, rods, and nut two. There are two crossbars, and four nuts one, four booms, four rods, and four nuts two. The two crossbars are parallel and of equal height, passing through the left and right sides of the medicine box. The left and right ends of the two crossbars are respectively threaded to four nuts one. The two crossbars are located outside the four nuts one and are respectively slidably fitted with one end of the four booms. The four rods are symmetrically arranged on the front and rear sides of the left and right ends of the machine body. The other end of the four booms is slidably fitted on the four rods. The four nuts two are respectively threaded to the four rods located outside the four booms. The top of the medicine box is flush with and in contact with the bottom of the machine body.

[0010] Furthermore, it also includes: handles, wherein two handles are provided, and the two handles are symmetrically fixedly connected to the left and right ends of the two crossbars.

[0011] Furthermore, the medicine box is provided with a liquid storage chamber inside, and a liquid inlet is provided on the upper right side of the medicine box. The liquid inlet is connected to the liquid storage chamber, and a screw cap is threaded onto the liquid inlet. A liquid outlet is provided in the middle of the bottom of the medicine box, and the liquid outlet is connected to the liquid storage chamber.

[0012] Furthermore, the anti-vibration assembly includes: a vertical rod, a collar, ball bearings, and a float plate. The liquid storage chamber is a rectangular cavity. The top end of the vertical rod is fixedly connected to the middle of the top end of the liquid storage chamber. The collar is annular, and several ball bearings are evenly arranged on the inner wall of the collar. The ball bearings are respectively rolled and connected to the outer wall of the vertical rod. A float plate is fixedly connected to the outer wall of the collar. The float plate is rectangular, and the distance between its side wall and the inner wall of the liquid storage chamber is 1-3 mm. Several through holes are evenly opened on the float plate. The float plate can drive the collar and several ball bearings to float on the top of the liquid. The distance between the bottom end of the vertical rod and the bottom end of the liquid storage chamber is 3-10 mm.

[0013] Furthermore, a spraying pump is fixedly installed at the bottom of the pole, and one end of the output end of the spraying pump is connected to a connecting pipe. The other end of the connecting pipe is connected to a nozzle, and the nozzle is sealed and embedded in the bottom of the inner wall of the liquid outlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses four fixed rods, four telescopic rods and four springs in combination to provide shock absorption and improve landing stability when the agricultural drone lands; the four screws can be directly inserted into the moist soil when the agricultural drone lands in the field, which enables the drone to land stably.

[0016] 2. The anti-vibration component of this utility model, due to the covering effect of the floating plate, allows the liquid medicine under the floating plate to flow out slowly through several perforations and the gap between the floating plate and the inner wall of the storage chamber when the drone turns, thereby reducing the shaking amplitude of the liquid medicine and improving the stability of the drone operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the telescopic rod of this utility model;

[0019] Figure 3 This is a transverse longitudinal sectional view of the present invention;

[0020] Figure 4 This is a cross-sectional view of the present invention at the ball bearing.

[0021] Figure 5 This is a bottom view of the present invention.

[0022] The labels in the attached diagram are as follows: 1-fuselage, 2-arm, 3-rotor, 4-fixed rod, 5-telescopic rod, 6-spring, 7-support cross tube, 8-foot, 9-screw, 10-medicine tank, 1001-liquid storage chamber, 11-crossbar, 12-nut one, 13-handle, 14-lifting arm, 15-lifting rod, 16-nut two, 17-liquid inlet, 18-cap, 19-liquid outlet, 20-nozzle, 21-connecting pipe, 22-medication pump, 23-upright pole, 24-ring, 25-ball bearing, 26-float plate, 2601-perforation. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] See Figures 1-5As shown, an agricultural drone includes: a fuselage 1, which is rectangular, with four arms 2 symmetrically arranged at the four corners of the fuselage 1, and four rotors 3 respectively installed at the top of the four arms 2; a landing gear is installed at the bottom of the fuselage 1, which includes: fixed rods 4, telescopic rods 5, springs 6, and support cross tubes 7. There are four fixed rods 4, four telescopic rods 5, and four springs 6. The four fixed rods 4 are symmetrically arranged on the left and right sides of the bottom of the fuselage 1. The four telescopic rods 5 are slidably connected to the lower part of the four fixed rods 4. Four springs 6 are respectively installed between the four fixed rods 4 and the four telescopic rods 5. Two support cross tubes 7 are symmetrically fixedly connected to the bottom of the two telescopic rods 5 on the same side. Two screws 9 are vertically threaded through and threaded to the left and right sides of the support cross tubes 7, with the tips of the screws 9 facing downwards; a medicine tank 10 is detachably fixedly installed at the bottom of the fuselage 1. The medicine tank 10 is equipped with an anti-vibration component to reduce the amplitude of medicine liquid sloshing.

[0025] In this embodiment, the upper end of the telescopic rod is provided with a sliding groove with a T-shaped cross section, the fixed rod 4 has a T-shaped cross section, the lower end of the fixed rod 4 is axially slidably connected in the sliding groove, and the two ends of the spring 6 press against the bottom end of the sliding groove and the bottom end of the fixed rod 4 respectively.

[0026] In this embodiment, two support legs 8 are symmetrically arranged on the left and right sides of the bottom end of the supporting horizontal tube 7.

[0027] In this embodiment, the agricultural drone also includes: two crossbars 11, one nut 12, a boom 14, a boom 15, and two nuts 16. There are two crossbars 11, and four each of the one nut 12, boom 14, boom 15, and two nuts 16. The two crossbars 11 are parallel and of equal height, passing through the left and right sides of the medicine box 10. The left and right ends of the two crossbars 11 are respectively threaded to the four one nut 12. The two crossbars 11 are located outside the four one nut 12 and each of the four booms 14 is slidably fitted with one end. The four booms 15 are symmetrically arranged on the front and rear sides of the left and right ends of the body 1. The other ends of the four booms 14 are slidably fitted onto the four booms 15. The four nuts 16 are respectively threaded to the four booms 15 located outside the four booms 14. The top of the medicine box 10 is flush with and in contact with the bottom of the body 1. When installing the medicine box 10, it is only necessary to fit the other ends of the four booms 14 onto the four booms 15 and tighten them with the four nuts 16, which is convenient to operate.

[0028] In this embodiment, the agricultural drone also includes a handle 13. There are two handles 13, which are symmetrically fixedly connected to the left and right ends of the two crossbars 11. The handles 13 facilitate lifting the entire medicine box 10.

[0029] In this embodiment, the medicine box 10 is provided with a liquid storage chamber 1001 inside. A liquid inlet 17 is provided on the upper right side of the medicine box 10. The liquid inlet 17 is connected to the liquid storage chamber 1001. A screw cap 18 is threaded onto the liquid inlet 17. A liquid outlet 19 is provided at the middle of the bottom end of the medicine box 10. The liquid outlet 19 is connected to the liquid storage chamber 1001.

[0030] In this embodiment, the anti-vibration assembly includes: a vertical rod 23, a collar 24, ball bearings 25, and a float plate 26. The liquid storage cavity 1001 is a rectangular cavity. The top end of the vertical rod 23 is fixedly connected to the middle of the top end of the liquid storage cavity 1001. The collar 24 is annular, and a plurality of ball bearings 25 are evenly arranged on the inner wall of the collar 24. The ball bearings 25 are respectively rolled and connected to the outer wall of the vertical rod 23. The float plate 26 is fixedly connected to the outer wall of the collar 24. The float plate 26 is rectangular, and the distance between its side wall and the inner wall of the liquid storage cavity 1001 is 1-3 mm. A plurality of through holes 2601 are evenly opened on the float plate 26. It can drive the collar 24 and several balls 25 to float on top of the liquid; the distance between the bottom end of the upright 23 and the bottom end of the liquid storage chamber 1001 is 3-10mm; due to the covering effect of the floating plate 26, when the UAV turns, the liquid under the floating plate 26 can only flow out slowly through several perforations 2601 and the gap between the floating plate 26 and the inner wall of the liquid storage chamber 1001, thereby reducing the shaking amplitude of the liquid and improving the stability of the UAV operation; as the liquid is gradually sprayed, the liquid level will gradually drop, and the floating plate 26 will gradually descend along the outer wall of the upright 23 through the collar 24 and several balls 25.

[0031] In this embodiment, a spraying pump 22 is fixedly installed at the bottom of the pole 23. The output end of the spraying pump 22 is connected to one end of a connecting pipe 21, and the other end of the connecting pipe 21 is connected to a nozzle 20. The nozzle 20 is sealed and embedded in the bottom of the inner wall of the liquid outlet 19.

[0032] Working principle: When using the drone, first determine whether to install screws 9 based on the landing location. If landing on a level, hard surface, screws 9 are not required; if landing on uneven, damp ground, four screws 9 need to be symmetrically installed on the two support crossbars 7. Next, inject the pesticide solution into the storage chamber 1001 through the inlet 17. After injection, tighten the cap 18 and install the pesticide tank 10 onto the bottom of the fuselage 1. Installation is simple: just attach the other ends of the four booms 14 to the four rods 15 and secure them with the four nuts 16. Then, electrically connect the pesticide pump 22 to the power supply and controller inside the fuselage 1. Start the agricultural drone to begin pesticide application. Due to the covering effect of the floating plate 26, when the drone turns, the area under the floating plate 26... The pesticide solution can only flow out slowly through several perforations 2601 and the gap between the float plate 26 and the inner wall of the storage chamber 1001, thereby reducing the sloshing amplitude of the pesticide solution and improving the stability of the drone operation. As the pesticide solution is gradually sprayed, the liquid level of the pesticide solution will also gradually drop, and the float plate 26 will gradually descend along the outer wall of the upright 23 through the collar 24 and several ball bearings 25. After the drone finishes spraying, it will land. The four fixed rods 4, four telescopic rods 5 and four springs 6 work together to provide shock absorption and improve landing stability during the landing of the plant protection drone. With the four screws 9, the plant protection drone can be directly inserted into the moist soil when landing in the field, which enables the drone to land stably.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the present utility model's technical solution and based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. An agricultural protection drone, including: The fuselage (1) is rectangular, and four arms (2) are symmetrically arranged at the four corners of the fuselage (1). Four rotors (3) are respectively arranged at the top of the four arms (2). A landing gear is arranged at the bottom of the fuselage (1). The landing gear is characterized in that the landing gear includes: fixed rods (4), telescopic rods (5), springs (6) and support cross tubes (7). There are four fixed rods (4), four telescopic rods (5) and four springs (6). The four fixed rods (4) are symmetrically arranged on the left and right sides of the bottom of the fuselage (1). The four telescopic rods (5) are respectively arranged on the left and right sides of the bottom of the fuselage (1). The sliding connection is located at the lower part of the four fixed rods (4). Four springs (6) are respectively provided between the four fixed rods (4) and the four telescopic rods (5). Two support horizontal tubes (7) are symmetrically fixedly connected to the bottom ends of the two telescopic rods (5) on the same side. Two screws (9) are vertically threaded through and threaded to the left and right sides of the support horizontal tubes (7). The tips of the screws (9) are set downward. A medicine box (10) is detachably fixedly installed at the bottom of the body (1). An anti-vibration component for reducing the amplitude of medicine liquid sloshing is provided inside the medicine box (10).

2. The plant protection drone according to claim 1, characterized in that: The upper end of the telescopic rod is provided with a sliding groove with a T-shaped cross section. The fixed rod (4) has a T-shaped cross section. The lower end of the fixed rod (4) is axially slidably connected in the sliding groove. The two ends of the spring (6) press against the bottom end of the sliding groove and the bottom end of the fixed rod (4) respectively.

3. The plant protection drone according to claim 1, characterized in that: The bottom of the supporting horizontal tube (7) is symmetrically provided with two support legs (8) on the left and right sides.

4. The plant protection drone according to claim 1, characterized in that: Also includes: The crossbar (11), nut one (12), boom (14), boom (15) and nut two (16) are provided. There are two crossbars (11), and four nuts one (12), boom (14), boom (15) and nut two (16) are provided. The two crossbars (11) are parallel and of equal height, passing through the left and right sides of the medicine box (10). The left and right ends of the two crossbars (11) are respectively threaded to the four nuts one (12). The two crossbars (11) are located outside the four nuts one (12) and are respectively slidably fitted with one end of the four booms (14). The four booms (15) are symmetrically arranged on the front and rear sides of the left and right ends of the machine body (1). The other end of the four booms (14) is slidably fitted on the four booms (15). The four nuts two (16) are respectively threaded to the four booms (15) located outside the four booms (14). The top of the medicine box (10) is flush with the bottom of the machine body (1) and in contact with it.

5. The plant protection drone according to claim 4, characterized in that: Also includes: Handles (13), two handles (13) are provided, and the two handles (13) are symmetrically fixedly connected to the left and right ends of the two crossbars (11).

6. The plant protection drone according to claim 1, characterized in that: The medicine box (10) is provided with a liquid storage chamber (1001) inside. A liquid inlet (17) is provided on the upper right side of the medicine box (10). The liquid inlet (17) is connected to the liquid storage chamber (1001). A screw cap (18) is threaded onto the liquid inlet (17). A liquid outlet (19) is provided at the middle of the bottom end of the medicine box (10). The liquid outlet (19) is connected to the liquid storage chamber (1001).

7. The plant protection drone according to claim 6, characterized in that: The anti-vibration assembly includes: a vertical rod (23), a collar (24), ball bearings (25), and a float plate (26). The liquid storage chamber (1001) is a rectangular cavity. The top end of the vertical rod (23) is fixedly connected to the middle of the top end of the liquid storage chamber (1001). The collar (24) is annular. Several ball bearings (25) are evenly arranged on the inner wall of the collar (24). The ball bearings (25) are respectively rolled and connected to the outer wall of the vertical rod (23). A floating plate (26) is fixedly connected to the outer wall. The floating plate (26) is rectangular and the distance between its side wall and the inner wall of the liquid storage cavity (1001) is 1-3 mm. Several through holes (2601) are evenly opened on the floating plate (26). The floating plate (26) can drive the collar (24) and several balls (25) to float on the top of the liquid. The distance between the bottom end of the upright (23) and the bottom end of the liquid storage cavity (1001) is 3-10 mm.

8. The plant protection drone according to claim 7, characterized in that: A spraying pump (22) is fixedly installed at the bottom of the pole (23). The output end of the spraying pump (22) is connected to one end of a connecting pipe (21). The other end of the connecting pipe (21) is connected to a nozzle (20). The nozzle (20) is sealed and embedded in the bottom of the inner wall of the liquid outlet (19).

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