Agricultural plant protection spraying instrument

Abstract

The agricultural plant protection spraying instrument comprises an unmanned aerial vehicle body, a mounting plate is arranged at the bottom of the unmanned aerial vehicle body, a frame body is arranged below the mounting plate, and a pesticide box with an upper opening is arranged on the frame body; an opening and closing device is arranged between the frame body and the mounting plate, the opening and closing device comprises a sealing cover plate and lifting screw rods, the lifting screw rods are vertically and symmetrically arranged on the two sides of the pesticide box, lifting holes in threaded connection with the lifting screw rods are formed in the sealing cover plate, and the sealing cover plate moves up and down along the lifting screw rods so that opening and closing of the pesticide box can be achieved; a supporting rod for fixing is arranged between the pesticide box and the side wall of the frame body, a weight sensor for weighing is arranged between the bottom of the pesticide box and the frame body, and a spraying device which is connected with the weight sensor and can achieve flow control is arranged at the bottom of the frame body. The utility model belongs to the technical field of agricultural plant protection equipment, and particularly provides an agricultural plant protection spraying instrument, which is used for solving the problems of how to control the spraying dosage and how to realize quick and stable dosing.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural plant protection equipment, and specifically refers to an agricultural plant protection spraying device. Background Art

[0002] Agricultural drone plant protection is an efficient, precise, low-cost, high-efficiency and environmentally friendly operation method. Its efficiency is more than 50 times that of manual work. The amount of pesticides applied to achieve the same effect is less than 80% of that of traditional plant protection operations. Since spray-type spraying is used, the water consumption is reduced by more than 90%. Using drone plant protection can greatly improve the efficiency of agricultural production operations, reduce the amount of pesticides used, reduce pesticide pollution entering the soil and the atmosphere, and ensure food safety. Therefore, drone plant protection has developed rapidly in recent years.

[0003] In the prior art, most spraying machines still stay in the stage of simple combination of medicine boxes, liquid pumps and nozzles, lacking technological innovation, unable to control the spraying amount of pesticides according to needs, and unable to achieve the effect of precise control of the pesticide amount. In addition, after adding medicine to the medicine box, the sealing performance needs to be considered. How to achieve both the stability and efficiency of adding medicine is an urgent problem to be solved in this field. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an agricultural plant protection spraying device for solving how to control the spraying amount of pesticides and how to achieve rapid and stable medicine addition.

[0005] The technical solution adopted by this application is as follows:

[0006] This solution provides an agricultural plant protection spraying device, including a drone body. An installation plate is provided at the bottom of the drone body. A frame body with a concave shape is provided below the installation plate. A medicine box with an upward opening is provided on the frame body.

[0007] An opening and closing device is provided between the frame body and the installation plate. The opening and closing device includes a sealing cover plate and a lifting screw rod. The lifting screw rods are symmetrically arranged vertically on both sides of the medicine box. A lifting hole threaded with the lifting screw rod is opened on the sealing cover plate. The sealing cover plate moves up and down along the lifting screw rod to realize the opening and closing of the medicine box. A sealing ring is provided at the bottom of the sealing cover plate. The sealing ring is attached to the inner wall of the medicine box to achieve a sealing effect.

[0008] A support rod is provided between the medicine box and the side wall of the frame body for fixation. A weight sensor for weighing is provided between the bottom of the medicine box and the frame body. A spraying device connected to the weight sensor and capable of realizing flow control is provided at the bottom of the frame body.

[0009] As a preferred solution, the spraying device includes a medicine spraying rod. A spraying frame is provided at the bottom of the frame body. A support rod is provided at the bottom of the spraying frame. A positioning plate is connected to the bottom of the support rod. The medicine spraying rod is horizontally distributed outside the positioning plate. The adapter is installed on the top of the spraying frame. A water pump is provided between the medicine tank and the adapter. A connecting pipe is provided between the adapter and the medicine spraying rod for connection. A flow meter is provided on the side end of the medicine spraying rod with respect to the positioning plate. A programmer is also provided on the spraying frame. The programmer is connected to the water pump, the flow meter, and the weight sensor.

[0010] Furthermore, the opening and closing device further includes a driving component. The driving component includes a worm and a worm gear. The worm is horizontally rotated and provided on the top of the frame body. The worm gear is coaxially connected to the lifting screw rod. The worm gear meshes with the worm. A motor is provided on one side of the frame body. The output shaft of the motor is connected to the worm. The lifting screw rods are symmetrically arranged on both sides of the sealing cover plate.

[0011] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0012] 1. Through the setting of the opening and closing device, driven by the driving component, the sealing cover plate moves up and down along the lifting screw rod to realize the opening and closing of the medicine tank. The medicine adding port is relatively large, facilitating the medicine adding work. At the same time, the sealing ring at the bottom of the sealing cover plate is used to achieve the effect of sealing and closing, and the driving of the motor is used to prevent reverse movement.

[0013] 2. Through the setting of the weight sensor in cooperation with the spraying device, through the combined action of weight sensing, the flow rate pumped out by the water pump, and the flow meter, and using the closed-loop control technology, the effect of accurately controlling the spraying amount for spraying is better. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of an agricultural plant protection spraying device provided by this solution;

[0015] Figure 2 It is a schematic diagram of the structure of the opening and closing device in this solution;

[0016] Figure 3 It is a cross-sectional schematic diagram of the sealing cover plate in this solution;

[0017] Figure 4 It is a schematic diagram of the principle of the spraying device in this solution.

[0018] The meanings of the reference numerals in the drawings are as follows:

[0019] 1. UAV body, 2. Installation plate, 3. Frame body, 4. Medicine tank, 5. Opening and closing device, 6. Support rod, 7. Weight sensor, 8. Spraying device, 9. Programmer;

[0020] 51. Sealing cover plate, 52. Lifting screw rod, 53. Driving assembly, 511. Sealing ring, 531. Worm, 532. Worm gear, 533. Motor;

[0021] 81. Spraying frame, 82. Spraying rod, 83. Water pump, 84. Flowmeter, 85. Nozzle, 86. Adapter, 87. Connecting pipe, 88. Positioning plate, 89. Support rod. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figure 1 As shown, this embodiment provides an agricultural plant protection spraying device, including a drone body 1. An installation plate 2 is provided at the bottom of the drone body 1. A frame body 3 arranged in a concave shape is provided below the installation plate 2. A medicine box 4 with an upward opening is provided on the frame body 3.

[0025] Considering the medicine adding rate and the situation that the medicine box 4 will not leak after adding medicine, an opening and closing device 5 is provided between the frame body 3 and the installation plate 2. The opening and closing device 5 includes a sealing cover plate 51 and a lifting screw rod 52. The lifting screw rod 52 is symmetrically arranged vertically on both sides of the medicine box 4. A lifting hole threadedly connected to the lifting screw rod 52 is opened on the sealing cover plate 51. The sealing cover plate 51 moves up and down along the lifting screw rod 52 to realize the opening and closing of the medicine box 4.

[0026] Refer to Figure 3 As shown, a sealing ring 511 is provided at the bottom of the sealing cover plate 51. The sealing ring 511 is attached to the inner wall of the medicine box 4 to achieve a sealing effect.

[0027] As Figure 2 As shown, the opening and closing device 5 further includes a driving assembly 53. The driving assembly 53 includes a worm 531 and a worm gear 532. The worm 531 is horizontally rotatably arranged on the top of the frame body 3. The worm gear 532 is coaxially connected to the lifting screw rod 52. The worm gear 532 meshes with the worm 531. A motor 533 is provided on one side of the frame body 3. The output shaft of the motor 533 is connected to the worm 531. The lifting screw rods 52 are symmetrically arranged on both sides of the sealing cover plate 51.

[0028] When using this structure, through the setting of the opening and closing device 5, driven by the driving component 53, the sealing cover plate 51 moves up and down along the lifting screw 52, thereby realizing the opening and closing of the medicine box 4. The medicine adding port is relatively large, facilitating the medicine adding work. At the same time, the sealing ring 511 at the bottom of the sealing cover plate 51 is used to achieve the effect of sealing and closing, and the driving of the motor 533 is used to prevent reverse movement.

[0029] To solve the problem of accurately controlling the spraying dose of medicine, refer to Figure 1 As shown, between the side wall of the medicine box 4 and the frame body 3, there is a support rod 6 for fixing. Between the bottom of the medicine box 4 and the frame body 3, there is a weight sensor 7 for weighing. At the bottom of the frame body 3, there is a spraying device 8 connected to the weight sensor 7 that can achieve flow control.

[0030] As a preferred solution, the spraying device 8 includes a spraying rod 82. At the bottom of the frame body 3, there is a spraying frame 81. At the bottom of the spraying frame 81, there is a support rod. At the bottom of the support rod, there is a positioning plate 88 connected. The spraying rod 82 is horizontally distributed outside the positioning plate 88. The adapter 86 is installed at the top of the spraying frame 81. Between the medicine box 4 and the adapter 86, there is a water pump 83. Between the adapter 86 and the spraying rod 82, there is a connecting pipe 87 for connection. On the side end of the spraying rod 82 with respect to the positioning plate 88, there is a flow meter 84. Among them, the positioning plate 88 is arranged in a cross shape. Four groups of spraying rods 82 are evenly distributed with respect to the positioning plate 88. At the bottom of the spraying rod 82, there are evenly distributed spray heads 85.

[0031] In a further solution, refer to Figure 4 As shown, on the spraying frame 81, there is also a programmer 9. The programmer 9 is connected to the water pump 83, the flow meter 84, and the weight sensor 7.

[0032] When using the present utility model, through the setting of the weight sensor 7 in cooperation with the spraying device 8, through the combined action of weight sensing, the flow pumped out by the water pump 83, and the flow meter 84, under the action of the programmer 9, the remaining amount of medicine in the medicine box 4 is detected by weight to judge the usage amount of the medicine. The water pump 83 can be set with corresponding working time and working frequency. For the flow meter 84, it can detect the spraying dose of each group of connecting pipes 87 and spraying rods 82, facilitating timely grasping of whether there is a blockage in each group of spraying rods 82, and having a good effect on accurately controlling the spraying amount required for spraying.

[0033] It should be noted that although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, without departing from the purpose of the creation of the present utility model, without creative design, the structural forms and embodiments similar to this technical solution should all fall within the protection scope of the present utility model.

Claims

1. An agricultural plant protection spraying device, comprising a drone body (1), a mounting plate (2) is provided at the bottom of the drone body (1), a frame body (3) arranged in a concave shape is provided below the mounting plate (2), and a medicine box (4) with an upward opening is provided on the frame body (3), characterized in that: An opening and closing device (5) is provided between the frame body (3) and the mounting plate (2). The opening and closing device (5) includes a sealing cover plate (51) and a lifting screw rod (52). The lifting screw rod (52) is symmetrically arranged vertically on both sides of the medicine box (4). A lifting hole threadedly connected to the lifting screw rod (52) is formed in the sealing cover plate (51). The sealing cover plate (51) moves up and down along the lifting screw rod (52) to realize the opening and closing of the medicine box (4). A support rod (6) is provided between the medicine box (4) and the side wall of the frame body (3) for fixation. A weight sensor (7) for weighing is provided between the bottom of the medicine box (4) and the frame body (3). A spraying device (8) capable of realizing flow control and connected to the weight sensor (7) is provided at the bottom of the frame body (3).

2. The agricultural plant protection spraying device according to claim 1, characterized in that: The spraying device (8) includes a medicine spraying rod (82). A spraying frame (81) is provided at the bottom of the frame body (3). A support rod (89) is provided at the bottom of the spraying frame (81). A positioning plate (88) is connected to the bottom of the support rod (89). The medicine spraying rod (82) is horizontally distributed outside the positioning plate (88). Nozzles (85) are evenly distributed at the bottom of the medicine spraying rod (82). A swivel joint (86) is installed at the top of the spraying frame (81). A water pump (83) is provided between the medicine box (4) and the swivel joint (86). A connecting pipe (87) is provided between the swivel joint (86) and the medicine spraying rod (82) for connection. A flow meter (84) is provided on the side end of the medicine spraying rod (82) with respect to the positioning plate (88).

3. The agricultural plant protection spraying device according to claim 2, characterized in that: A programmer (9) is further provided on the spraying frame (81). The programmer (9) is connected to the water pump (83), the flow meter (84), and the weight sensor (7).

4. The agricultural plant protection spraying device according to claim 1, wherein: The opening and closing device (5) further includes a driving assembly (53). The driving assembly (53) includes a worm (531) and a worm gear (532). The worm (531) is horizontally rotatably arranged on the top of the frame body (3). The worm gear (532) is coaxially connected to the lifting screw rod (52). The worm gear (532) is meshed with the worm (531). A motor (533) is provided on one side of the frame body (3). The output shaft of the motor (533) is connected to the worm (531). The lifting screw rods (52) are symmetrically arranged on both sides of the sealing cover plate (51).

5. The agricultural plant protection spraying device according to claim 1, characterized in that: A sealing ring (511) is provided at the bottom of the sealing cover plate (51). The sealing ring (511) is arranged in a fitting manner on the inner wall of the medicine box (4).

6. The agricultural plant protection spraying apparatus according to claim 2, wherein: The positioning plate (88) is arranged in a cross shape. Four groups of medicine spraying rods (82) are evenly distributed with respect to the positioning plate (88).

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