Backpack air-blast plant protection machine
The backpack-mounted wind-assisted plant protection machine solves the problems of inconvenient movement of tractor-trailer plant protection machines on hillsides and insufficient penetration of pesticides through the innovative design of the wind-assisted device and spraying device, thus achieving a highly efficient pest and disease control effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WOLFBERRY ENGINEERING RESEARCH INSTITUTE NINGXIA ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-24
AI Technical Summary
Conventional tractor-trailer plant protection machines are difficult to maneuver and prone to slipping when planting on hillsides, and the pesticide penetration is weak, resulting in poor pest and disease control.
A backpack-type wind-assisted plant protection machine was designed, including a medicine tank, a wind-assisted device, and a spraying device. The fan is connected to the machine via a drive belt. The fan and the guide plate form a wind-assisted device for secondary atomization. The nozzles are symmetrically distributed and the angle is adjustable. Combined with a control valve, the liquid medicine is mixed and refluxed. The machine is suspended at three points on a power locomotive for operation.
It improved the adhesion and utilization rate of the pesticide solution, enhanced the spraying coverage, solved the problems of unstable walking on hillsides and insufficient penetration of the pesticide solution, and improved the control effect and operation efficiency.
Smart Images
Figure CN224539238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plant protection machines, and in particular to a backpack-type wind-assisted plant protection machine. Background Technology
[0002] Currently, large-scale wolfberry cultivation is mostly shifting to uncultivated land, which is mostly hillside land with sand and gravel. When conventional tractors pull plant protection machines, there are problems such as inconvenience in movement and easy slippage, resulting in power loss and reduced work efficiency. Moreover, conventional plant protection machines have weak penetration of pesticides and a small working width, which greatly reduces the effectiveness of pest and disease control.
[0003] Therefore, how to propose a backpack-style plant protection operation method, conduct research on wind-assisted spraying and other technologies based on the planting patterns and power requirements of virgin land, and focus on solving problems such as the corresponding wind-assisted spraying range, has become an urgent problem for those skilled in the art. Utility Model Content
[0004] The purpose of this invention is to provide a backpack-type pneumatic plant protection machine that solves the problems of inconvenient movement and slippage associated with traction-type connections.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a backpack-type wind-assisted plant protection machine, which includes a medicine tank, a wind-assisted device, a spraying device, and a control device for providing driving force. The medicine tank is placed on the upper front side of the frame, and the front side of the frame is connected to the power locomotive. The air delivery device includes a wind hood and a fan that provides atomization power. The wind hood is installed on the rear side of the frame, and the fan is installed on the back plate of the wind hood. The air outlet of the fan is connected to the inner cavity of the wind hood and transmits air force. The spraying device includes a third drug delivery pipe and nozzles. The inlet end of the third drug delivery pipe is connected to the outlet of the medicine tank, and the outlet end of the third drug delivery pipe is connected to multiple nozzles. The nozzles are located on the left and right sides of the inner cavity of the fan hood. A peristaltic pump is connected to the connecting pipe between the third drug delivery pipe and the medicine tank. The control device drives the peristaltic pump and the fan to work synchronously.
[0006] Preferably, the inner cavity of the air shroud is provided with multiple guide plates, which divide the inner cavity into multiple atomizing air delivery chambers, and each atomizing air delivery chamber has a corresponding nozzle installed on its outlet side.
[0007] Preferably, the nozzles are symmetrically arranged on the left and right sides of the atomizing air delivery chamber and face the plant when working; the nozzles are connected to the branch pipes of the third drug delivery pipe.
[0008] Preferably, a control valve is provided on one side of the medicine box. The control valve is installed on the top front side of the frame. The inlet of the control valve is connected to the outlet of the peristaltic pump through a second drug delivery pipe. The inlet of the peristaltic pump is connected to the outlet of the medicine box through a first drug delivery pipe. The two drug supply ports of the control valve are connected to the inlets of the two third drug delivery pipes through a first drug delivery diversion pipe and a second drug delivery diversion pipe, respectively. The return port of the control valve is connected to the return pipe at the top of the medicine box through a return pipe.
[0009] Preferably, the four corners of the front end face of the frame are provided with adapter plates, which are connected to the locomotive by bolt assemblies.
[0010] Preferably, three adapter plates are provided, one at the top center of the frame and two at the bottom of the frame, and the three adapter plates form a three-point positioning and are suspended on the locomotive.
[0011] Preferably, the control device includes a power input shaft, the fan is connected to one side of the peristaltic pump via a transmission belt, and the other side of the peristaltic pump is connected to the power locomotive via the power input shaft; when the power locomotive starts, it drives the peristaltic pump to rotate via the power input shaft, and then drives the fan to work via the transmission belt to generate wind power.
[0012] Preferably, the fan includes an annular frame, a central fan drive shaft, and fan blades. The annular frame is fixedly mounted on the fan cover. Multiple fan blades are mounted on one end of the fan drive shaft and located within the annular frame. The other end of the fan drive shaft is mounted on the front plate of the fan cover via a bearing seat. A driven pulley is connected to the other end of the fan drive shaft. The driven pulley is connected to the driving pulley on the peristaltic pump via the drive belt.
[0013] Preferably, the air inlet of the annular frame is connected to an imported safety screen.
[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This utility model discloses a backpack-type wind-assisted plant protection machine. The fan is connected to the drive belt, which not only provides power to the fan but also effectively avoids the problem of the drive shaft jamming due to fan failure, thereby damaging the peristaltic pump. The fan, the fan cover, and the guide plate together form a wind delivery device, which can atomize the pesticide solution a second time, improving the pesticide adhesion rate and utilization rate. Multiple nozzles are installed on both sides and symmetrically distributed, and the spraying angle can be adjusted individually to increase the spraying coverage and effectively adjust the spraying amount according to different tree ages.
[0015] This utility model is compact and lightweight, easy to operate, and connected to a power locomotive via a three-point suspension, enabling stable and quick spraying operations in wolfberry orchards on sandy land. The control valve design enables backflow stirring, which can effectively mix the pesticide solution, and the fan setting completes secondary atomization of the pesticide solution, improving the adhesion rate and utilization rate of the pesticide solution, thereby further improving the prevention and control effect. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the backpack-type wind-assisted plant protection machine of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the structure of the air-assisted spray mechanism of this utility model; Figure 4 This is a schematic diagram of the connection of the spray device of this utility model; Figure 5 This is a schematic diagram of the internal structure of the wind shield of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Medicine tank; 2. Control valve; 3. Frame; 301. Adapter plate; 4. Fan hood; 5. Fan; 501. Inlet baffle; 6. Fan blade; 7. Third delivery pipe; 8. Nozzle; 9. Peristaltic pump; 10. Drive belt; 11. Guide plate; 12. Fan drive shaft; 13. Driven pulley; 14. Bearing with mounting seat; 15. Power input shaft; 101. Return line; 701. First drug delivery shunt; 702. Second drug delivery shunt; 901, First infusion tube; 902, Second infusion tube. Detailed Implementation
[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0020] like Figure 1-5 As shown, a backpack-type wind-assisted plant protection machine includes a medicine tank 1 for storing pesticide solution, a wind-assisted device, a spraying device, and a control device for providing driving force. The medicine tank 1 is placed on the upper front side of a frame 3, and the front side of the frame 3 is connected to a power locomotive. The air delivery device includes a wind cover 4 and a fan 5 that provides atomization power. The wind cover 4 is installed on the rear side of the frame 3, and the fan 5 is installed on the back plate of the wind cover 4. The air outlet of the fan 5 is connected to the inner cavity of the wind cover 4 and transmits air force. The spraying device includes a third drug delivery pipe 7 and nozzles 8. The inlet end of the third drug delivery pipe 7 is connected to the outlet of the medicine tank 1, and the outlet end of the third drug delivery pipe 7 is connected to multiple nozzles 8. The nozzles 8 are located on the left and right sides of the inner cavity of the wind hood 4. A peristaltic pump 9 is connected to the connecting pipe between the third drug delivery pipe 7 and the medicine tank 1. The control device drives the peristaltic pump 9 and the fan 5 to work synchronously.
[0021] Specifically, the inner cavity of the wind hood 4 is provided with multiple guide plates 11, which divide the inner cavity into multiple atomizing air delivery chambers. Each atomizing air delivery chamber has a corresponding nozzle 8 installed on its outlet side. The nozzles 8 are symmetrically arranged on the left and right sides of the atomizing air delivery chambers and face the plant when working. The nozzles 8 are connected to the branch pipe of the third drug delivery pipe 7. Specifically, the nozzles 8 are purchased parts and are connected to the branch pipe by threads. The connection end is sealed by a sealing ring. One side of the nozzle has a rotatable double nozzle structure, which can rotate 360° during use. During spraying, the angle can be adjusted according to the height of the plant to ensure a sufficiently large coverage area.
[0022] In one specific embodiment, the guide plate 11 is symmetrically arranged with 4 sections, dividing the inner cavity into 10 atomizing air delivery chambers. A total of 10 nozzles are designed accordingly, with 5 distributed on each side. The spacing between two adjacent nozzles is set at 30 cm, with the specific nozzle distribution range determined according to the goji berry planting pattern. Specifically, the fan 5, the wind hood 4, and the guide plate 11 together form a wind delivery device. Strong airflow from the atomizing air delivery chambers achieves secondary atomization of the pesticide solution, improving the adhesion and utilization rate of the pesticide solution. Simultaneously, the multiple nozzles, symmetrically distributed on both sides, allow for individual adjustment of the spraying angle, increasing the spray coverage area and effectively adjusting the spraying amount for different tree ages.
[0023] like Figure 4 As shown, a control valve 2 is installed on one side of the medicine tank 1. The control valve 2 is fixedly installed on the top front side of the frame 3 by screws or welding. The inlet of the control valve 2 is connected to the outlet of the peristaltic pump 9 through a second drug delivery pipe 902. The inlet of the peristaltic pump 9 is connected to the outlet of the medicine tank 1 through a first drug delivery pipe 901. The two drug supply ports of the control valve 2 are connected to the inlets of the two third drug delivery pipes 7 through a first drug delivery diversion pipe 701 and a second drug delivery diversion pipe 702, respectively. The return port of the control valve 2 is connected to the return pipe at the top of the medicine tank 1 through a return pipe 101. The control valve 2 serves two purposes: first, to control the diversion of the medicine liquid; and second, to allow part of the medicine liquid to flow back from the top to the medicine tank through the return pipe 101, thus playing a role in reflux and stirring.
[0024] Specifically, adapter plates 301 are provided at the four corners of the front end face of the frame 3. The adapter plates 301 are connected to the locomotive via bolt assemblies. Three adapter plates 301 are provided: one at the top center of the frame 3 and two at the bottom. The three adapter plates 301 form a three-point positioning system and are suspended on the locomotive. This detachable connection is convenient and quick to operate, and ensures stable operation.
[0025] Specifically, such as Figure 2 , 3 As shown, the control device includes a power input shaft 15. The fan 5 is connected to one side of the peristaltic pump 9 via a transmission belt 10, and the other side of the peristaltic pump 9 is connected to the power locomotive via the power input shaft 15. When the power locomotive starts, it drives the peristaltic pump 9 to rotate via the power input shaft 15, which in turn drives the fan 5 to work and generate wind power via the transmission belt 10.
[0026] Specifically, the fan 5 includes an annular frame, a central fan drive shaft 12, and fan blades 6. The annular frame is fixedly mounted on the fan cover 4. Multiple fan blades 6 are mounted on one end of the fan drive shaft 12 and located within the annular frame. The other end of the fan drive shaft 12 is mounted on the front plate of the fan cover 4 via a bearing 14. A driven pulley 13 is connected to the other end of the fan drive shaft 12. The driven pulley 13 is connected to the driving pulley on the peristaltic pump 9 via a transmission belt 10. Specifically, the transmission belt 10 connects the fan, providing power to the fan 5 and effectively preventing the transmission shaft from jamming due to fan failure, thus avoiding damage to the peristaltic pump.
[0027] Specifically, the air inlet of the annular frame is connected to an inlet baffle 501 for safety protection. The design of the inlet baffle 501 serves two purposes: first, it prevents floating debris and branches from entering, ensuring the normal rotation of the fan blades; second, it prevents safety issues caused by personnel accidentally touching the fan blades.
[0028] The usage process of this utility model is as follows: First, assemble the backpack-type wind-assisted plant protection machine of this utility model, including the medicine tank 1, wind delivery device, spraying device and control device, and install it into the appropriate position of the frame 3 according to the design position and requirements. Finally, connect it to the power locomotive through three adapter plates 301. During installation, keep the medicine tank 1 empty. Then, the vehicle is driven to the dosing point by a locomotive, and the appropriate liquid medicine is filled into the medicine tank 1. Afterwards, the driver started the motor vehicle to the designated work site and completed the spraying operation. The route was located in the open space between the rows of the wolfberry plantation.
[0029] In one specific embodiment: The nozzle distribution area was determined based on the goji berry planting pattern, with a total of 6 groups of nozzles and a spacing of 30 cm between individual nozzles. Based on the distribution area of the goji berry canopy and pests, and combined with the optimal control pressure of the peristaltic pump, the required pressure and corresponding power of the blower were calculated. The technical parameters of the air-assisted spraying components are shown in Table 1. Table 1 Technical parameters of the spraying device
[0030] In this embodiment, by reasonably selecting parameters such as the fan 5, peristaltic pump 9, and nozzle 8, the spray radius can reach 800mm.
[0031] By selecting key components such as the combined wind-assisted spraying technology, a 3WPF-300 backpack wind-assisted plant protection machine for goji berries has been developed. It has been tested on a small scale at the Mingsha Base and the Xixia District Garden Farm Experimental Base. The operating efficiency can reach 6-8 mu / hour, and the pesticide adhesion rate is over 70%. Specific technical parameters are shown in Table 2.
[0032] Table 2 Technical parameters of the backpack-type pneumatic plant protection machine for goji berries
[0033] This utility model, through the development of a backpack-type wind-assisted plant protection machine, ensures stable operation and high work efficiency during spraying. It effectively solves the problems of easy landslides and inconvenient construction caused by the traction structure between rows of wolfberries on hillsides. The working width refers to the spacing between adjacent wolfberry rows.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A backpack-mounted pneumatic plant protection machine, characterized in that: It includes a medicine tank (1), an air delivery device, a spraying device and a control device for providing driving force, wherein the medicine tank (1) is placed on the upper front side of the frame (3), and the front side of the frame (3) is connected to the power locomotive; The air delivery device includes a hood (4) and a fan (5) that provides atomization power. The hood (4) is installed on the rear side of the frame (3), and the fan (5) is installed on the back plate of the hood (4). The air outlet of the fan (5) is connected to the inner cavity of the hood (4) and transmits air force. The spraying device includes a third drug delivery pipe (7) and nozzles (8). The inlet end of the third drug delivery pipe (7) is connected to the outlet of the medicine tank (1). The outlet end of the third drug delivery pipe (7) is connected to multiple nozzles (8). The nozzles (8) are located on the left and right sides of the inner cavity of the wind hood (4). A peristaltic pump (9) is connected to the connecting pipe between the third drug delivery pipe (7) and the medicine tank (1). The control device drives the peristaltic pump (9) and the fan (5) to work synchronously.
2. The backpack-type pneumatic plant protection machine according to claim 1, characterized in that: The inner cavity of the wind shroud (4) is provided with multiple guide plates (11), which divide the inner cavity into multiple atomizing air supply chambers. Each atomizing air supply chamber has a nozzle (8) installed on its outlet side.
3. The backpack-type pneumatic plant protection machine according to claim 2, characterized in that: The nozzles (8) are symmetrically arranged on the left and right sides of the atomizing air supply chamber and face the plant when working; the nozzles (8) are rotatably connected to the branch pipe of the third drug delivery pipe (7).
4. The backpack-type pneumatic plant protection machine according to claim 2, characterized in that: A control valve (2) is provided on one side of the medicine box (1). The control valve (2) is installed on the top front side of the frame (3). The inlet of the control valve (2) is connected to the outlet of the peristaltic pump (9) through the second drug delivery pipe (902). The inlet of the peristaltic pump (9) is connected to the outlet of the medicine box (1) through the first drug delivery pipe (901). The two drug supply ports of the control valve (2) are connected to the inlets of the two third drug delivery pipes (7) through the first drug delivery diversion pipe (701) and the second drug delivery diversion pipe (702), respectively. The return port of the control valve (2) is connected to the return pipe at the top of the medicine box (1) through the return pipe (101).
5. The backpack-type pneumatic plant protection machine according to claim 1, characterized in that: The frame (3) has four corners of the front end face with adapter plates (301), which are connected to the locomotive by bolt assemblies.
6. The backpack-type pneumatic plant protection machine according to claim 5, characterized in that: There are three adapter plates (301), one at the top center of the frame (3) and two at the bottom of the frame (3). The three adapter plates (301) form a three-point positioning and are suspended on the locomotive.
7. The backpack-type pneumatic plant protection machine according to claim 1, characterized in that: The control device includes a power input shaft (15). The fan (5) is connected to one side of the peristaltic pump (9) via a transmission belt (10). The other side of the peristaltic pump (9) is connected to the locomotive via the power input shaft (15). When the locomotive starts, it drives the peristaltic pump (9) to rotate via the power input shaft (15), and then drives the fan (5) to work and generate wind power via the transmission belt (10).
8. The backpack-type pneumatic plant protection machine according to claim 7, characterized in that: The fan (5) includes an annular frame, a central fan drive shaft (12), and fan blades (6). The annular frame is fixedly mounted on the fan cover (4). Multiple fan blades (6) are mounted on one end of the fan drive shaft (12) and located within the annular frame. The other end of the fan drive shaft (12) is mounted on the front plate of the fan cover (4) via a bearing seat (14). A driven pulley (13) is connected to the other end of the fan drive shaft (12). The driven pulley (13) is connected to the driving pulley on the peristaltic pump (9) via the drive belt (10).
9. The backpack-type pneumatic plant protection machine according to claim 8, characterized in that: The air inlet of the annular frame is connected to an imported safety screen (501).