Plant protection unmanned aerial vehicle spraying device

Abstract

The utility model belongs to the technical field of unmanned aerial vehicle accessories, and particularly relates to a plant protection unmanned aerial vehicle spraying device which comprises an upper transverse pipe, a connecting column is fixedly installed at the bottom of the upper transverse pipe, and a lower transverse pipe is fixedly installed at the bottom of the connecting column. The inner wall of the upper transverse pipe and the inner wall of the lower transverse pipe fixedly communicate with guide pipes, and the surfaces of the guide pipes are slidably connected with U-shaped pipes. According to the plant protection unmanned aerial vehicle spraying device, a locking block on a locking support is inserted into a locking groove in a second rectangular barrel, a U-shaped pipe can be fixed to a guide pipe, meanwhile, a plurality of locking grooves are formed in the second rectangular barrel, a user can adjust the distance between a first spraying head and a second spraying head, and the spraying effect is improved. And the spraying range of the spraying device can be changed by adjusting the distance between the first spraying head and the second spraying head, so that the spraying range of the spraying device can be adjusted according to different use requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of UAV accessories, and particularly relates to a spraying device for a plant protection UAV. Background Technique

[0002] A plant protection UAV, also known as an unmanned aerial vehicle, as the name implies, is an unmanned aircraft used for agricultural and forestry plant protection operations. This type of unmanned aircraft consists of a flight platform (fixed-wing, helicopter, multi-rotor aircraft), a navigation flight control, and a spraying mechanism, and realizes spraying operations through ground remote control or navigation flight control.

[0003] At present, the spraying device on a plant protection UAV is mainly composed of a pipeline, a mounting bracket, and a nozzle. Among them, the spraying device is fixed on the UAV through the mounting bracket, and then the pipeline is connected to the water outlet pipe on the UAV water pump, and the pesticide carried on the UAV is sprayed out through the nozzle on the pipeline. For example, a plant protection UAV adjustable spraying device disclosed in Chinese Patent Publication No. CN212243834U.

[0004] However, since the position of the nozzle on the spraying device is fixed, the spraying range of the spraying device cannot be adjusted according to different usage requirements, resulting in the spraying device being unable to better meet the usage requirements of users. At the same time, since the nozzle on the spraying device is located at the bottom of the UAV and the nozzle is exposed outside, when the UAV is parked for refueling or maintenance, the nozzle is often damaged due to the carelessness of the operator. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a spraying device for a plant protection UAV, which solves the problem that the spraying range of the existing spraying device cannot be adjusted according to different usage requirements. At the same time, it solves the problem that when the UAV is parked for refueling or maintenance, the nozzle on the spraying device is often damaged due to the carelessness of the operator.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] A plant protection UAV spraying device includes an upper horizontal pipe. A connecting column is fixedly installed at the bottom of the upper horizontal pipe. A lower horizontal pipe is fixedly installed at the bottom of the connecting column. Guide pipes are fixedly communicated with the inner walls of both the upper horizontal pipe and the lower horizontal pipe. A U-shaped pipe is slidably connected to the surface of the guide pipe. A first nozzle is fixedly communicated with the bottom of the lower horizontal pipe. A second nozzle is fixedly communicated with the bottom of the U-shaped pipe. A locking bracket is fixedly installed on the surface of the connecting column. A second rectangular cylinder is fixedly installed on the surface of the U-shaped pipe. A number of locking grooves are formed on the upper surface of the second rectangular cylinder. The inner wall of the locking groove is fitted with the surface of the locking bracket. The surface of the second rectangular cylinder is fitted with the inner wall of the locking bracket. An installation bracket is fixedly connected to the surface of the upper horizontal pipe. A connecting pipe is fixedly communicated with the back of the upper horizontal pipe.

[0008] The present utility model is further configured as follows: The locking bracket includes a hollow block, a first rectangular cylinder, a through hole, a locking block, a first strip-shaped hole, a spring, an upper limit post and a lower limit post. The inner wall of the hollow block is fixedly connected to the surface of the connecting column. Both the left and right sides of the hollow block are fixedly connected to the side surfaces of the first rectangular cylinder. The through hole is formed on the upper surface of the first rectangular cylinder. The inner walls of both the through hole and the locking groove are fitted with the surface of the locking block. The first strip-shaped hole is formed in the locking block. The upper and lower ends of the spring are respectively fixedly connected to the inner wall of the first strip-shaped hole and the upper surface of the upper limit post. The bottom of the upper limit post is fixedly connected to the upper surface of the first rectangular cylinder. Both the front and rear sides of the inner wall of the first rectangular cylinder are fixedly connected to the surface of the lower limit post. The inner wall of the first rectangular cylinder and the bottom of the lower limit post are both slidably connected to the surface of the second rectangular cylinder.

[0009] The present utility model is further configured as follows: An anti-slip sleeve is adhesively bonded to the surface of the locking block. The pulling force of the spring on the locking block is greater than the sum of the gravity of the locking block and the anti-slip sleeve.

[0010] The present utility model is further configured as follows: Mounting seats are fixedly installed on the upper surface of the lower horizontal pipe and the bottom of the inner wall of the U-shaped pipe. An electric telescopic rod is fixedly installed on the upper surface of the mounting seat. A protective cover is fixedly installed at the top of the electric telescopic rod. Second strip-shaped holes are formed on both the left and right sides of the protective cover. The surfaces of both the lower horizontal pipe and the U-shaped pipe are in contact with the inner walls of the second strip-shaped holes.

[0011] The present utility model is further configured as follows: Both the first nozzle and the second nozzle are located inside the protective cover.

[0012] The present utility model is further configured as follows: An annular groove is formed on the surface of the guide pipe. Sealing rings are respectively fitted on the inner walls of both the annular groove and the U-shaped pipe.

[0013] The present utility model is further configured such that a third strip-shaped hole is formed in the front surface of the second rectangular cylinder, a scale is fixedly installed on the inner wall of the third strip-shaped hole, and the front surface of the scale is attached to the inner wall of the first rectangular cylinder.

[0014] The technical effects achieved by the present utility model are as follows:

[0015] In a spraying device for a plant protection unmanned aerial vehicle of the present utility model, by inserting the locking block on the locking bracket into the locking groove on the second rectangular cylinder, the U-shaped pipe can be fixed on the guiding pipe. At the same time, by providing a plurality of locking grooves on the second rectangular cylinder, the user can adjust the distance between the first nozzle and the second nozzle, and by adjusting the distance between the first nozzle and the second nozzle, the spraying range of the spraying device can be changed, so that the spraying range of the spraying device can be adjusted according to different usage requirements.

[0016] In a spraying device for a plant protection unmanned aerial vehicle of the present utility model, the electric telescopic rod can control the up and down movement of the protective cover. At the same time, when the protective cover covers the first nozzle and the second nozzle, the first nozzle and the second nozzle can be prevented from being collided by the protective cover, so that when the unmanned aerial vehicle is parked, the first nozzle or the second nozzle will not be damaged due to the carelessness of the operator. Description of the Drawings

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

[0018] Figure 2 is Figure 1 the enlarged view at A in

[0019] Figure 3 is the rear view of the structure of the present utility model;

[0020] Figure 4 is the front view of the upper cross pipe in the present utility model;

[0021] Figure 5 is the side view of the locking bracket in the present utility model;

[0022] Figure 6 is Figure 5 the cross-sectional view taken along the line B-B in

[0023] Figure 7 is the side view of the locking block in the present utility model;

[0024] Figure 8 is the front view of the second rectangular cylinder in the present utility model;

[0025] Figure 9 is the side view of the protective cover in the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Upper horizontal pipe; 2. Connecting column; 3. Lower horizontal pipe; 4. Guide pipe; 5. U-shaped pipe; 6. First nozzle; 7. Second nozzle; 8. Locking bracket; 801. Hollow block; 802. First rectangular cylinder; 803. Through hole; 804. Locking block; 805. First strip-shaped hole; 806. Spring; 807. Upper limit post; 808. Lower limit post; 9. Second rectangular cylinder; 10. Locking groove; 11. Mounting bracket; 12. Connecting pipe; 13. Anti-slip sleeve; 14. Mounting seat; 15. Electric telescopic rod; 16. Protective cover; 17. Second strip-shaped hole; 18. Annular groove; 19. Sealing ring; 20. Third strip-shaped hole; 21. Scale. Specific embodiments

[0028] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0029] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0030] As Figures 1 to 8 shown, a spraying device for a plant protection unmanned aerial vehicle includes an upper horizontal pipe 1. A connecting column 2 is fixedly installed at the bottom of the upper horizontal pipe 1. A lower horizontal pipe 3 is fixedly installed at the bottom of the connecting column 2. The upper horizontal pipe 1 and the lower horizontal pipe 3 are connected together through the connecting column 2. Guide pipes 4 are fixedly communicated with the inner walls of both the upper horizontal pipe 1 and the lower horizontal pipe 3. A U-shaped pipe 5 is slidably connected to the surface of the guide pipe 4. The U-shaped pipe 5 is guided by the guide pipe 4. An annular groove 18 is formed on the surface of the guide pipe 4. Sealing rings 19 are respectively arranged in a fitting manner on the inner walls of the annular groove 18 and the U-shaped pipe 5. The connection between the guide pipe 4 and the U-shaped pipe 5 is sealed by the sealing rings 19. A first nozzle 6 is fixedly communicated with the bottom of the lower horizontal pipe 3. A second nozzle 7 is fixedly communicated with the bottom of the U-shaped pipe 5. A locking bracket 8 is fixedly installed on the surface of the connecting column 2. A second rectangular cylinder 9 is fixedly installed on the surface of the U-shaped pipe 5. A plurality of locking grooves 10 are formed on the upper surface of the second rectangular cylinder 9. The inner wall of the locking groove 10 is in contact with the surface of the locking bracket 8. The surface of the second rectangular cylinder 9 is in contact with the inner wall of the locking bracket 8. A mounting bracket 11 is fixedly connected to the surface of the upper horizontal pipe 1. A connecting pipe 12 is fixedly communicated with the back of the upper horizontal pipe 1. The upper horizontal pipe 1 is fixed on the unmanned aerial vehicle through the mounting bracket 11, and the connecting pipe 12 is connected to the water outlet pipe on the water pump of the unmanned aerial vehicle.

[0031] Among them, the locking bracket 8 includes a hollow block 801, a first rectangular cylinder 802, a through hole 803, a locking block 804, a first strip-shaped hole 805, a spring 806, an upper limit post 807 and a lower limit post 808. The inner wall of the hollow block 801 is fixedly connected to the surface of the connecting column 2. Both the left and right sides of the hollow block 801 are fixedly connected to the side surface of the first rectangular cylinder 802. The through hole 803 is opened on the upper surface of the first rectangular cylinder 802. The inner walls of the through hole 803 and the locking groove 10 are both in contact with the surface of the locking block 804. The locking block 804 can slide up and down in the through hole 803. The first strip-shaped hole 805 is opened in the locking block 804. The upper and lower ends of the spring 806 are respectively fixedly connected to the inner wall of the first strip-shaped hole 805 and the upper surface of the upper limit post 807. The bottom of the upper limit post 807 is fixedly connected to the upper surface of the first rectangular cylinder 802. Both the front and rear sides of the inner wall of the first rectangular cylinder 802 are fixedly connected to the surface of the lower limit post 808. The inner wall of the first rectangular cylinder 802 and the bottom of the lower limit post 808 are both slidably connected to the surface of the second rectangular cylinder 9. An anti-slip sleeve 13 is adhered to the surface of the locking block 804. The pulling force of the spring 806 on the locking block 804 is greater than the sum of the gravity of the locking block 804 and the anti-slip sleeve 13. Through the pulling force of the spring 806 on the locking block 804, after the locking block 804 is inserted into the locking groove 10, the locking block 804 can be in close contact with the locking groove 10. Through the anti-slip sleeve 13, it is not easy for the user to slip when pulling up the locking block 804. A third strip-shaped hole 20 is opened on the front surface of the second rectangular cylinder 9. A scale 21 is fixedly installed on the inner wall of the third strip-shaped hole 20. The front surface of the scale 21 is in contact with the inner wall of the first rectangular cylinder 802. Through the scale 21, the user can intuitively judge the distance between the first nozzle 6 and the second nozzle 7.

[0032] It should be noted that when the user pulls up the locking block 804, the locking block 804 is separated from the locking groove 10 by the pulling force, and the U-shaped tube 5 can slide on the guide tube 4. When the locking block 804 is aligned with the locking groove 10, through the pulling force of the spring 806 on the locking block 804, the locking block 804 is inserted into the locking groove 10, and through the cooperation of the locking groove 10 and the locking block 804, the U-shaped tube 5 is fixed on the guide tube 4. At the same time, by providing a plurality of locking grooves 10 on the second rectangular cylinder 9, the user can adjust the distance between the first nozzle 6 and the second nozzle 7, and by adjusting the distance between the first nozzle 6 and the second nozzle 7, the spraying range of the spraying device can be changed.

[0033] Such as Figures 1 to 9As shown in the figure, mounting seats 14 are fixedly installed on the upper surface of the lower horizontal pipe 3 and the bottom of the inner wall of the U-shaped pipe 5. An electric telescopic rod 15 is fixedly installed on the upper surface of the mounting seat 14. The top end of the electric telescopic rod 15 is fixedly installed with a protective cover 16. The protective cover 16 is controlled to move up and down by the electric telescopic rod 15. Second strip-shaped holes 17 are formed on both the left and right sides of the protective cover 16. The surfaces of the lower horizontal pipe 3 and the U-shaped pipe 5 are in contact with the inner walls of the second strip-shaped holes 17.

[0034] Among them, the first nozzle 6 and the second nozzle 7 are both located inside the protective cover 16.

[0035] It should be noted that when the protective cover 16 rises to the highest position under the action of the electric telescopic rod 15, the first nozzle 6 and the second nozzle 7 are both exposed, and the protective cover 16 will not affect the spraying range of the first nozzle 6 and the second nozzle 7. When the protective cover 16 descends to the lowest position under the action of the electric telescopic rod 15, after the protective cover 16 covers the first nozzle 6 and the second nozzle 7, the first nozzle 6 and the second nozzle 7 can be prevented from being collided by the protective cover 16.

[0036] The working principle of the present utility model is as follows: First, the spraying device is fixed on the unmanned aerial vehicle through the mounting bracket 11. Then, the connecting pipe 12 is connected to the water outlet pipe on the water pump of the unmanned aerial vehicle. At this time, through the water pump on the unmanned aerial vehicle, the pesticide can be sprayed out through the first nozzle 6 and the second nozzle 7.

[0037] When it is necessary to adjust the spraying range of the spraying device, first pull up the locking block 804 to separate the locking block 804 from the locking groove 10. Then, move the U-shaped pipe 5 to adjust the distance between the first nozzle 6 and the second nozzle 7. When the distance between the first nozzle 6 and the second nozzle 7 reaches an appropriate size, and when the locking block 804 is aligned with the locking groove 10, release the locking block 804, and through the pulling force of the spring 806 on the locking block 804, the locking block 804 is inserted into the locking groove 10. At this time, through the cooperation of the locking block 804 and the locking groove 10, the U-shaped pipe 5 is fixed on the guide pipe 4, and the distance between the first nozzle 6 and the second nozzle 7 cannot be changed.

[0038] When the unmanned aerial vehicle stops on the ground, the electric telescopic rod 15 can make the protective cover 16 descend to the lowest position, and the first nozzle 6 and the second nozzle 7 are covered by the protective cover 16. At this time, the first nozzle 6 and the second nozzle 7 can be prevented from being collided by the protective cover 16. When the unmanned aerial vehicle is flying, the electric telescopic rod 15 can make the protective cover 16 move up to the highest position, and the first nozzle 6 and the second nozzle 7 are both exposed. At this time, the protective cover 16 will not affect the spraying range of the first nozzle 6 and the second nozzle 7.

[0039] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A spraying device for a plant protection unmanned aerial vehicle, characterized in that: It includes an upper horizontal pipe (1), a connecting column (2) is fixedly installed at the bottom of the upper horizontal pipe (1), a lower horizontal pipe (3) is fixedly installed at the bottom of the connecting column (2), guiding pipes (4) are fixedly communicated with the inner walls of the upper horizontal pipe (1) and the lower horizontal pipe (3), a U-shaped pipe (5) is slidably connected to the surface of the guiding pipe (4), a first nozzle (6) is fixedly communicated with the bottom of the lower horizontal pipe (3), a second nozzle (7) is fixedly communicated with the bottom of the U-shaped pipe (5), a locking bracket (8) is fixedly installed on the surface of the connecting column (2), a second rectangular cylinder (9) is fixedly installed on the surface of the U-shaped pipe (5), a plurality of locking grooves (10) are formed in the upper surface of the second rectangular cylinder (9), the inner wall of the locking groove (10) is fitted with the surface of the locking bracket (8), the surface of the second rectangular cylinder (9) is fitted with the inner wall of the locking bracket (8), an installation bracket (11) is fixedly connected to the surface of the upper horizontal pipe (1), and a connecting pipe (12) is fixedly communicated with the back surface of the upper horizontal pipe (1).

2. The spraying device of a plant protection unmanned aerial vehicle according to claim 1, characterized in that: The locking bracket (8) includes a hollow block (801), a first rectangular cylinder (802), a through hole (803), a locking block (804), a first strip-shaped hole (805), a spring (806), an upper limit post (807) and a lower limit post (808). The inner wall of the hollow block (801) is fixedly connected to the surface of the connecting column (2). Both the left and right sides of the hollow block (801) are fixedly connected to the side surfaces of the first rectangular cylinder (802). The through hole (803) is formed in the upper surface of the first rectangular cylinder (802). The inner walls of the through hole (803) and the locking groove (10) are both fitted with the surface of the locking block (804). The first strip-shaped hole (805) is formed in the locking block (804). The upper and lower ends of the spring (806) are respectively fixedly connected to the inner wall of the first strip-shaped hole (805) and the upper surface of the upper limit post (807). The bottom of the upper limit post (807) is fixedly connected to the upper surface of the first rectangular cylinder (802). Both the front and rear sides of the inner wall of the first rectangular cylinder (for 802) are fixedly connected to the surface of the lower limit post (808). The inner wall of the first rectangular cylinder (802) and the bottom of the lower limit post (808) are both slidably connected to the surface of the second rectangular cylinder (9).

3. The spraying device of a plant protection UAV according to claim 2, characterized in that: An anti-slip sleeve (13) is adhered to the surface of the locking block (804), and the pulling force of the spring (806) on the locking block (804) is greater than the sum of the gravity of the locking block (804) and the anti-slip sleeve (13).

4. The spraying device of a plant protection unmanned aerial vehicle according to claim 1, wherein: Mounting seats (14) are fixedly installed on the upper surface of the lower horizontal pipe (3) and the bottom of the inner wall of the U-shaped pipe (5). An electric telescopic rod (15) is fixedly installed on the upper surface of the mounting seat (14). A protective cover (16) is fixedly installed at the top of the electric telescopic rod (15). Second strip-shaped holes (17) are formed in both the left and right sides of the protective cover (16). The surfaces of the lower horizontal pipe (3) and the U-shaped pipe (5) are both in contact with the inner walls of the second strip-shaped holes (17).

5. The spraying device of a plant protection UAV according to claim 4, characterized in that: The first nozzle (6) and the second nozzle (7) are both located inside the protective cover (16).

6. The spraying device of a plant protection unmanned aerial vehicle according to claim 1, wherein: An annular groove (18) is formed on the surface of the guide pipe (4), and sealing rings (19) are attached to the inner walls of both the annular groove (18) and the U-shaped pipe (5).

7. The spraying device of a plant protection unmanned aerial vehicle according to claim 2, characterized in that: A third strip-shaped hole (20) is formed on the front surface of the second rectangular cylinder (9), a scale (21) is fixedly installed on the inner wall of the third strip-shaped hole (20), and the front surface of the scale (21) is in contact with the inner wall of the first rectangular cylinder (802).

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