A pesticide spraying device for fruit tree planting
By introducing an observation tube and support unit into the fruit tree planting spraying device, the problems of difficulty in monitoring the remaining liquid and instability of the handheld sprayer are solved, realizing real-time monitoring of the remaining liquid and the continuity and accuracy of spraying operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUILI CHENGRUN AGRI DEV TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
In existing fruit tree spraying devices, operators cannot monitor the remaining pesticide solution in real time, and need to repeatedly disassemble the device to check, which increases physical exertion and affects the accuracy and coverage of spraying.
A spraying device with an observation tube and a support was designed. The observation tube is connected to the medicine tank through a connecting pipe, and a float ball displays the liquid level. The support supports the spray bar handle through a magnetic suction plate and a limiting magnetic block, reducing the burden on the hand and improving the ease of operation.
It enables real-time monitoring of pesticide residue, improves the continuity and accuracy of spraying operations, reduces the physical exertion of operators, and enhances the coverage effect of spraying.
Smart Images

Figure CN224482729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a spraying device for fruit tree planting. Background Technology
[0002] Fruit tree cultivation is an important agricultural activity involving the systematic cultivation of various fruit trees in orchards, with the aim of producing fruits with economic and edible value. During the growth and fruiting process of fruit trees, spraying pesticides is a key prevention and control measure to ensure the health, yield, and quality of the fruits. This is because fruit trees are extremely susceptible to various pests, diseases, and weeds in the natural environment. These biological hazards can directly damage leaves, flowers, branches, and fruits, leading to deformities, reduced yields, or even crop failure.
[0003] Currently, most commonly used spraying equipment consists of manual sprayers and small electric sprayers. When operating a backpack sprayer, the user must first wear necessary protective gear, including gloves, a mask, goggles, and protective clothing, to ensure safety. Then, pour the pre-diluted and thoroughly stirred pesticide solution into the tank, and tighten the tank lid to prevent leakage. Next, the operator carries the sprayer, adjusting the shoulder straps to a comfortable and stable position, ensuring the tank's center of gravity is firmly against the back. Turn on the power switch to start the motor and pump. Once the pressure stabilizes, the operator holds the spray boom handle with one hand and adjusts the atomization mode of the nozzle (such as fan or cone) with the other, controlling the valve. After entering the orchard, the operator holds the spray boom, maintaining a recommended distance of approximately 30-50 cm between the nozzle and the leaves or branches of the target fruit tree, spraying while walking, depending on the tree canopy structure and the location of pests or diseases.
[0004] During use, certain problems exist. On the one hand, because the spray tank is designed behind the operator's back, it is difficult for the user to visually monitor the remaining spray level. This lack of visibility makes it impossible for operators to predict and replenish the spray in time, often requiring them to interrupt the work and repeatedly remove the device to check, significantly reducing the continuity and efficiency of the operation. On the other hand, most backpack sprayers currently lack a stable fixing design for the spray boom, forcing the operator to operate it by hand throughout the entire process. This not only increases the physical burden on the operators but also hinders their detailed observation of the canopy structure, branch and leaf distribution, and the specific location of pests and diseases, affecting the accuracy and coverage of the spraying operation. Therefore, we urgently need a spraying device for fruit tree planting to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to solve the problems in the existing technology where operators cannot monitor the remaining amount of pesticide in real time, need to repeatedly disassemble the device to check, and cannot fix the handheld sprayer, which increases the physical exertion of operators and hinders the observation of details of branches and leaves. Therefore, this invention proposes a spraying device for fruit tree planting.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A spraying device for fruit tree planting includes a backpack frame and a miniature water pump mounted on the backpack frame. A pesticide tank is fixedly connected to the backpack frame. The input end of the miniature water pump is fixedly connected to the outlet of the pesticide tank. The output end of the miniature water pump is fixedly connected to a spray bar handle via a corrugated pipe. The output end of the spray bar handle is provided with an atomizing nozzle for spraying pesticides. The device also includes: a connecting pipe fixedly mounted on the pesticide tank, one end of which is fixedly connected to the pesticide tank, and the other end of which is fixedly connected to an observation pipe for observing the liquid level; and a support part for supporting the spray bar handle, which is movably mounted on the backpack frame.
[0008] In order to support the spray bar handle, preferably, the support part includes a horizontal plate fixedly installed on the back frame. A ball bearing seat is rotatably connected to the horizontal plate through a rotating hole, and a ball head is movably connected inside the ball bearing seat. A support rod is fixedly connected to the connection of the ball head, and an elastic buckle is fixedly connected to the end of the support rod. When the elastic buckle is engaged with the spray bar handle, a limiting area is formed.
[0009] In order to better support the spray bar handle, the support part further includes a magnetic suction plate fixedly connected to the support rod. A limiting magnetic block is fixedly connected to the horizontal plate, and a support area is formed when the magnetic suction plate and the limiting magnetic block are magnetically attracted.
[0010] In order to reflect the liquid level in the medicine tank, preferably, the observation tube is equipped with a scale for observing the liquid level height.
[0011] To better observe the liquid level, a float for identifying the liquid level is further installed inside the observation tube.
[0012] To reduce the pressure on the operator's back, preferably, a cushioning pad is fixedly connected to the back frame.
[0013] Compared with the prior art, this utility model provides a spraying device for fruit tree planting, which has the following beneficial effects:
[0014] 1. This spraying device for fruit tree planting, through the setting of the observation tube, has a connecting pipe located at the bottom of the medicine tank and connected to the medicine tank. The connection position of the connecting pipe is far away from the liquid outlet. When the volume of the medicine tank increases, the pesticide will enter the observation tube along the connecting pipe. The pesticide will push the float to move upward. When the medicine tank is full of pesticide, the liquid level in the observation tube should be level with the liquid level in the medicine tank. When the liquid level in the medicine tank drops, the liquid level in the observation tube will drop accordingly, which is convenient for the operator to observe and avoid the operator not being able to intuitively monitor the remaining liquid, thus improving the continuity and efficiency of the operation.
[0015] 2. This spraying device for fruit tree planting, through the setting of the support part, when the operator is not using the spray bar handle, simply put the magnetic plate against the limiting magnetic block to complete the adsorption, thereby supporting the spray bar handle. This allows the operator to carefully observe the canopy structure, branch and leaf distribution, and specific location of pests and diseases of the fruit tree before spraying pesticides, improving the accuracy and coverage of the spraying operation.
[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model avoids the inability of operators to intuitively monitor the remaining liquid, improves the continuity and efficiency of operations, and enhances the accuracy and coverage of spraying operations. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a spraying device for fruit tree planting proposed in this utility model.
[0018] Figure 2 This is a partial structural schematic diagram of a spraying device for fruit tree planting proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the spray box and observation tube structure of a spraying device for fruit tree planting proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the backpack frame and support rod structure of a spraying device for fruit tree planting proposed in this utility model.
[0021] In the diagram: 1. Backpack frame; 2. Miniature water pump; 3. Medicine tank; 4. Spray handle; 5. Atomizing nozzle; 6. Connecting pipe; 7. Observation tube; 8. Horizontal plate; 9. Ball bearing seat; 10. Ball head; 11. Support rod; 12. Elastic buckle; 13. Magnetic plate; 14. Limiting magnetic block; 15. Ruler; 16. Float; 17. Buffer pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.
[0024] Example:
[0025] Reference Figures 1-4 A spraying device for fruit tree planting includes a backpack frame 1 and a miniature water pump 2 mounted on the backpack frame 1. A buffer pad 17 is fixedly connected to the backpack frame 1, and a medicine tank 3 is fixedly connected to the backpack frame 1. The input end of the miniature water pump 2 is fixedly connected to the outlet of the medicine tank 3. The output end of the miniature water pump 2 is fixedly connected to a spray bar handle 4 through a corrugated pipe. The output end of the spray bar handle 4 is equipped with an atomizing nozzle 5 for spraying pesticides. Here, the miniature water pump 2 mainly consists of a miniature water pump 2 body, a lithium battery pack, and a control switch. The input end of the miniature water pump 2 is connected to the outlet of the medicine tank 3 through a pipe. The lithium battery pack is connected to the miniature water pump 2 and the control switch through a wire. The control switch is integrated into the grip area of the spray bar handle 4 and is connected to the lithium battery pack and the miniature water pump 2 through a wire. It is used to control the start and stop of the miniature water pump 2 to realize the real-time control of pesticide spraying. The switch adopts a waterproof button design to adapt to the humid working environment of the orchard and avoid accidental touch or water damage.
[0026] It should be noted that the spray bar handle 4 is connected to the medicine tank 3 via a bellows, which makes it easy to flexibly adjust the spraying direction when operating the spray bar handle 4.
[0027] It also includes a connecting pipe 6 fixedly installed on the medicine tank 3. One end of the connecting pipe 6 is fixedly connected to the medicine tank 3, and the other end of the connecting pipe 6 is fixedly connected to an observation pipe 7 for observing the liquid level. A scale 15 for observing the liquid level is installed on the observation pipe 7, and a float 16 for identifying the liquid level floats inside the observation pipe 7. Here, the connecting pipe 6 is located at the bottom of the medicine tank 3 and is connected to the medicine tank 3. The connection position of the connecting pipe 6 is far away from the liquid outlet. When the volume of the medicine tank 3 increases, the pesticide will enter the observation pipe 7 along the connecting pipe 6. The pesticide will push the float 16 to move upward. When the medicine tank 3 is full of pesticide, the liquid level in the observation pipe 7 should be level with the liquid level in the medicine tank 3. When the liquid level in the medicine tank 3 drops, the liquid level in the observation pipe 7 will drop accordingly, which is convenient for the operator to observe and avoid the operator being unable to intuitively monitor the remaining liquid, thus improving the continuity and efficiency of the operation.
[0028] It should be noted that the observation tube 7 is transparent and has an anti-corrosion coating on the inner wall. Operators can observe the liquid level simply by turning their heads, making it convenient for operators to use.
[0029] The support part for the spray bar handle 4 is movably mounted on the backpack frame 1. The support part includes a horizontal plate 8 fixedly mounted on the backpack frame 1. A ball bearing seat 9 is rotatably connected to the horizontal plate 8 through a rotating hole. A ball head 10 is movably connected inside the ball bearing seat 9. A support rod 11 is fixedly connected to the connection of the ball head 10. An elastic buckle 12 is fixedly connected to the end of the support rod 11. When the elastic buckle 12 is engaged with the spray bar handle 4, a limiting area is formed. The support part also includes a magnetic suction plate 13 fixedly connected to the support rod 11. A limiting magnetic block 14 is fixedly connected to the horizontal plate 8. When the magnetic suction plate 13 and the limiting magnetic block 14 are magnetically attracted, a support area is formed.
[0030] Here, when the operator is not using the spray bar handle 4, they only need to place the magnetic plate 13 against the limiting magnetic block 14 to complete the adsorption, thereby supporting the spray bar handle 4. This allows the operator to make detailed observations of the canopy structure, branch and leaf distribution, and specific locations of pests and diseases of the fruit trees before spraying pesticides, thus improving the accuracy and coverage of the spraying operation.
[0031] It should be noted that the rotatable ball bearing seat 9 and the multi-directional support rod 11 are designed to ensure that the multi-position adjustment of the spray bar handle 4 is not affected.
[0032] In this invention, the operator pours pesticide into the pesticide tank 3 and screws on the cap. After turning on the built-in switch on the micro water pump 2, the operator carries the backpack frame 1 on their back. Upon arriving at the orchard, the operator can use the magnetic suction plate 13 to magnetically engage with the limiting magnetic block 14 to support the spray bar handle 4. After observing the basic condition of the fruit trees, the operator simply picks up the spray bar handle 4 to disengage the magnetic suction plate 13 from the limiting magnetic block 14, presses the switch, and uses the atomizing nozzle 5 to spray the pesticide outward, thus completing the spraying process.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A spraying device for fruit tree planting, comprising a backpack frame (1) and a miniature water pump (2) mounted on the backpack frame (1), wherein a medicine tank (3) is fixedly connected to the backpack frame (1), the input end of the miniature water pump (2) is fixedly connected to the outlet of the medicine tank (3), the output end of the miniature water pump (2) is fixedly connected to a spray bar handle (4) through a corrugated pipe, and the output end of the spray bar handle (4) is provided with an atomizing nozzle (5) for spraying pesticides, characterized in that, Also includes: A connecting pipe (6) is fixedly installed on the medicine box (3). The end of the connecting pipe (6) is fixedly connected to the medicine box (3), and the other end of the connecting pipe (6) is fixedly connected to an observation pipe (7) for observing the liquid level. The support part of the spray bar handle (4) is mounted on the backpack frame (1) for support.
2. The spraying device for fruit tree planting according to claim 1, characterized in that, The support includes a horizontal plate (8) fixedly installed on the back frame (1). A ball bearing seat (9) is rotatably connected to the horizontal plate (8) through a rotating hole. A ball head (10) is movably connected inside the ball bearing seat (9). A support rod (11) is fixedly connected to the connection of the ball head (10). An elastic buckle (12) is fixedly connected to the end of the support rod (11). When the elastic buckle (12) is engaged with the spray bar handle (4), a limiting area is formed.
3. A spraying device for fruit tree planting according to claim 2, characterized in that, The support also includes a magnetic suction plate (13) fixedly connected to the support rod (11), and a limiting magnetic block (14) is fixedly connected to the horizontal plate (8). When the magnetic suction plate (13) and the limiting magnetic block (14) are magnetically attracted, a support area is formed.
4. A spraying device for fruit tree planting according to claim 1, characterized in that, The observation tube (7) is equipped with a scale (15) for observing the liquid level.
5. A spraying device for fruit tree planting according to claim 4, characterized in that, A float (16) for identifying the liquid level floats inside the observation tube (7).
6. A spraying device for fruit tree planting according to claim 1, characterized in that, A cushioning pad (17) is fixedly connected to the back frame (1).