Double-chamber pressurizing type pesticide spraying device

Abstract

The utility model relates to a double-chamber pressurizing type pesticide spraying device, which belongs to the field of agricultural instruments and comprises a box body, a first storage tank, a second storage tank and straps, the first storage tank and the second storage tank are detachably connected to the interior of the box body, and the straps are fixedly connected to the back of the box body. A spraying mechanism which extends to the outside of the box body and is used for spraying the pesticide discharged from the first storage tank and the second storage tank in a pressurized manner is arranged in the box body, and a mixing structure which is used for uniformly mixing a single barrel of pesticide liquid is arranged outside the box body. According to the double-chamber pressurization type pesticide spraying device, the first storage tank and the second storage tank are arranged to be independent of each other, complete physical isolation of pesticides is achieved, cross contamination between the pesticides is avoided, and the stability of the pesticide effect is guaranteed; the flow proportion of the medicine discharged from the first storage tank and the second storage tank can be rapidly changed without complex cleaning and replacing operation, the switching time is greatly shortened, and the advantage that the medicine is completely physically isolated is achieved.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and in particular to a dual-chamber pressurized spraying device. Background Technology

[0002] Currently, aerial spraying devices in the agricultural plant protection field generally adopt a single-chamber pesticide storage structure, using a booster pump to achieve pesticide atomization and spraying. With the development of precision agriculture, higher demands are being placed on the atomization effect, pesticide compatibility, and operational efficiency of spraying devices. In recent years, drone spraying technology has developed rapidly, but due to limitations in payload and endurance, high-power ground spraying devices remain the mainstream choice for aerial operations. Existing technologies mostly focus on nozzle improvement or booster system optimization, but lack effective solutions for the requirements of multi-pesticide compatibility and rapid switching.

[0003] In the process of agricultural plant protection, pressurized spraying devices are needed. Chinese utility model patent with announcement number CN220712623U discloses a shoulder-mounted sprayer with a mixing function, including a medicine tank and a negative pressure cylinder located on the medicine tank. The negative pressure cylinder is connected to a spraying rod through a soft rubber tube. The end of the spraying rod is connected to a nozzle. A stirring rod is rotatably installed inside the medicine tank. A stirring knob is connected to the upper end of the stirring rod. A stirring tooth is sleeved on the stirring rod. The stirring knob drives the stirring tooth to rotate through the stirring rod.

[0004] In the process of implementing this application, the technology has at least the following problems: the shoulder-mounted sprayer with mixing function has a single-chamber structure. When multiple drugs are mixed in one chamber, cross-contamination is likely to occur, resulting in loss of drug efficacy. Moreover, when switching between different drugs for spraying, the operation is cumbersome and the switching time is long, which greatly reduces the work efficiency and affects the spraying effect. Therefore, a dual-chamber pressurized spraying device is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a dual-chamber pressurized spraying device, which has the advantages of complete physical isolation of the pesticide and high operating efficiency. It solves the problems of existing shoulder-mounted sprayers with mixing functions being single-chamber structures, which are prone to cross-contamination when multiple pesticides are mixed in one chamber, leading to loss of efficacy. Moreover, the operation is cumbersome and the switching time is long when switching between different pesticides, which greatly reduces the operating efficiency and affects the spraying effect.

[0006] In summary, this application provides the following technical solution: a dual-chamber pressurized spraying device, comprising a housing, a first storage tank and a second storage tank detachably connected to the inside of the housing, and a shoulder strap fixedly connected to the back of the housing. The inside of the housing is provided with a spraying mechanism extending to the outside for pressurizing and spraying the medicine discharged from the first storage tank and the second storage tank. The outside of the housing is provided with a mixing structure for uniformly mixing the liquid in a single tank.

[0007] The spraying mechanism includes a three-way valve fixedly connected to the outside of the tank, a delivery pipe fixedly connected between the three-way valve and the first storage tank, a booster pump fixedly installed outside the tank, a spray bar set outside the booster pump, an adjusting sleeve threadedly connected to the inside of the spray bar and extending to its outside, a connector fixedly connected to the top of the adjusting sleeve, and a nozzle fixedly connected to the outside of the connector.

[0008] The mixing structure includes an inlet pipe fixedly connected to the output end of a three-way valve, a throat fixedly connected to the right end of the inlet pipe, a diffuser fixedly connected between the throat and the input end of a booster pump, and a stirring blade rotatably connected inside the throat.

[0009] This application, by adopting the above-mentioned technical solution, sets up independent first and second storage tanks to store different drugs respectively, achieving complete physical isolation of the drugs, avoiding cross-contamination between drugs, and ensuring stable efficacy. Through the combined use of a three-way valve and a booster pump, the ratio of drug flow discharged from the first and second storage tanks can be quickly changed without complex cleaning and replacement operations, greatly shortening the switching time and achieving the advantage of complete physical isolation of drugs. The synergistic effect of the booster pump and mixing structure allows the drugs to be quickly and evenly mixed and pressurized before entering the nozzle for spraying, improving the efficiency of spraying operations. The setting of a limiting structure can stably clamp and limit the spray boom, preventing it from shaking when the device is not in use, ensuring the stability of the device structure, and also facilitating the storage of the spray boom, achieving the advantage of high operating efficiency.

[0010] Furthermore, a connecting pipe is fixedly connected between the right end of the three-way valve and the second storage tank. Both the first and second storage tanks are hollow cylinders, and their volumes increase sequentially from left to right.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the agent to be sprayed can be selected through a three-way valve. The right end of the three-way valve is connected to the second storage tank through a connecting pipe, and the left end is connected to the first storage tank through a delivery pipe.

[0012] Furthermore, both the first and second storage tanks are equipped with a dosing assembly at their tops. The dosing assembly includes a dosing pipe fixedly connected to the top of the tank body and a corrugated telescopic pipe fixedly connected between the dosing pipe and the first storage tank. The top of the dosing pipe is threaded with a sealing cap.

[0013] The beneficial effects of adopting the above-mentioned further solution are: by using the design of the dosing tube and the corrugated telescopic tube, it is convenient to add drugs to the first storage tank and the second storage tank, and at the same time, it is convenient to take them out and put them back at any time.

[0014] Furthermore, the throat is a narrow-necked tube, the outer diameter of the stirring blade is adapted to the inner diameter of the throat, the inlet tube and the diffuser tube are both conical, and the inlet tube and the diffuser tube are arranged opposite to each other.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that by setting the drug to enter the throat, since the throat is a narrow neck, the drug flow rate is accelerated. Driven by the high-speed flow, the stirring blade begins to rotate, stirring the drug and making the two drugs fully mixed.

[0016] Furthermore, a flexible hose is fixedly connected between the output end of the booster pump and the spray bar. An anti-slip rubber pad is fitted onto the outside of the spray bar. A locking screw extending into the back of the spray bar and abutting against the outer wall of the adjusting sleeve is threadedly connected to the back of the spray bar. Both the spray bar and the adjusting sleeve are hollow cylinders. The outer diameter of the adjusting sleeve is adapted to the inner diameter of the spray bar. A sealing gasket is fixedly connected at the connection between the spray bar and the adjusting sleeve.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the distance of the nozzle can be adjusted by rotating the adjusting sleeve.

[0018] Furthermore, the exterior of the housing is provided with a limiting structure for limiting and clamping the spray bar. The limiting structure includes a fixing block fixedly connected to the exterior of the housing, a connecting frame fixedly connected to the exterior of the fixing block, an abutment spring fixedly connected to the interior of the connecting frame, and a clamping plate fixedly connected to the other end of the abutment spring.

[0019] The beneficial effects of adopting the above-mentioned further solution are: by using the fixed block, connecting frame, abutment spring and clamping plate in combination, the spray bar can be stably clamped and limited, preventing the spray bar from shaking when the device is not in use, ensuring the stability of the device structure, and also facilitating the storage of the spray bar.

[0020] Furthermore, there are two sets of abutment springs and clamps, and the two sets of abutment springs and clamps are symmetrically distributed inside the connecting frame, with the two sets of clamps abutting against the outer wall of the spray bar.

[0021] The beneficial effect of adopting the above-mentioned further solution is that, when the spray bar is not in use, it is fixed to the housing by a limiting structure. The clamping plate clamps the spray bar under the action of the abutment spring, preventing the spray bar from shaking.

[0022] Furthermore, the box is a hollow cuboid, and a cover plate is detachably connected to the outside of the box.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the internal components can be easily maintained and repaired by detachably connecting the cover plate to the outside of the box.

[0024] Compared with the prior art, this application provides a dual-chamber pressurized spraying device, which has the following beneficial effects:

[0025] 1. This dual-chamber pressurized spraying device achieves complete physical isolation of the agents by setting up independent first and second storage tanks to store different drugs respectively, avoiding cross-contamination between drugs and ensuring stable efficacy. By using a three-way valve and a booster pump, the ratio of drug flow discharged from the first and second storage tanks can be quickly changed without the need for complicated cleaning and replacement operations, greatly shortening the switching time and achieving the advantage of complete physical isolation of agents.

[0026] 2. This dual-chamber pressurized spraying device, through the synergistic action of the booster pump and the mixing structure, enables the drug to be quickly and evenly mixed and pressurized before entering the nozzle for spraying, thus improving the efficiency of spraying operations. By setting a limiting structure, the spray bar can be stably clamped and limited to prevent the spray bar from shaking when the device is not in use, ensuring the stability of the device structure. At the same time, it is also convenient to store the spray bar, achieving the advantage of high operating efficiency. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural view of this application;

[0028] Figure 2 This is a three-dimensional sectional view of the structure of this application;

[0029] Figure 3 This is a three-dimensional structural view of the hybrid structure of this application;

[0030] Figure 4 This application Figure 2 A magnified structural diagram of structure A is shown.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Housing; 2. First storage tank; 3. Second storage tank; 4. Spraying mechanism; 41. Three-way valve; 42. Delivery pipe; 43. Booster pump; 44. Spray bar; 45. Hose; 46. Nozzle; 47. Adjusting sleeve; 48. Connector; 49. Corrugated telescopic pipe; 410. Dosing pipe; 5. Shoulder strap; 6. Mixing structure; 61. Inlet pipe; 62. Throat pipe; 63. Diffuser pipe; 64. Agitator blade; 7. Limiting structure; 71. Fixing block; 72. Connecting frame; 73. Abutment spring; 74. Clamping plate. Detailed Implementation

[0033] Please see Figures 1 to 4 In this embodiment, a dual-chamber pressurized spraying device includes a housing 1, a first storage tank 2 and a second storage tank 3 detachably connected to the inside of the housing 1, and a shoulder strap 5 fixedly connected to the back of the housing 1. The inside of the housing 1 is provided with a spraying mechanism 4 extending to the outside for pressurizing and spraying the medicine discharged from the first storage tank 2 and the second storage tank 3. The outside of the housing 1 is provided with a mixing structure 6 for mixing the liquid in a single tank evenly.

[0034] The spraying mechanism 4 includes a three-way valve 41 fixedly connected to the outside of the housing 1, a delivery pipe 42 fixedly connected between the three-way valve 41 and the first storage tank 2, a booster pump 43 fixedly installed outside the housing 1, a spray bar 44 located outside the booster pump 43, an adjusting sleeve 47 threadedly connected to the inside of the spray bar 44 and extending to its outside, a connector 48 fixedly connected to the top of the adjusting sleeve 47, and a nozzle 46 fixedly connected to the outside of the connector 48. The booster pump 43 is powered by an externally connected small air compressor. The first storage tank 2 and the second storage tank 3 are completely isolated by a physical isolation structure to ensure that the two agents will not be cross-contaminated during storage and transportation, thus avoiding loss of efficacy. The two agents are stored and transported separately, eliminating the need to clean the equipment when switching, reducing operational steps, and improving work efficiency.

[0035] Specifically, a connecting pipe is fixedly connected between the right end of the three-way valve 41 and the second storage tank 3. Both the first storage tank 2 and the second storage tank 3 are hollow cylinders, with their volumes increasing sequentially from left to right. The booster pump 43 is activated by the controller, causing the drug in the first storage tank 2 to flow into the three-way valve 41 through the delivery pipe 42, and the drug in the second storage tank 3 to flow into the three-way valve 41 through the connecting pipe. After initial convergence at the three-way valve 41, the two drugs enter the inlet pipe 61 of the mixing structure 6 for pressurization. The pressurized drugs then enter the spray bar 44 through the hose 45. The position of the adjusting sleeve 47 within the spray bar 44 can be adjusted according to actual spraying needs, thereby changing the distance of the nozzle 46.

[0036] It should be noted that both the first storage tank 2 and the second storage tank 3 are equipped with a dosing assembly on their tops. The dosing assembly includes a dosing pipe 410 fixedly connected to the top of the tank body 1 and a corrugated telescopic pipe 49 fixedly connected between the dosing pipe 410 and the first storage tank 2. The top of the dosing pipe 410 is threaded with a sealing cap. By adopting the design of the dosing pipe 410 and the corrugated telescopic pipe 49, it is convenient to add medicine to the first storage tank 2 and the second storage tank 3, and it is also convenient to remove and put back at any time.

[0037] In addition, a hose 45 is fixedly connected between the output end of the booster pump 43 and the spray bar 44. An anti-slip rubber pad is fitted onto the outside of the spray bar 44. A locking screw, extending into the back of the spray bar 44 and abutting against the outer wall of the adjusting sleeve 47, is threaded onto its back. Both the spray bar 44 and the adjusting sleeve 47 are hollow cylinders. The outer diameter of the adjusting sleeve 47 matches the inner diameter of the spray bar 44. A sealing washer is fixedly connected at the connection between the spray bar 44 and the adjusting sleeve 47. After adjustment, the adjusting sleeve 47 is fixed with the locking screw to prevent movement. The drug is then sprayed from the nozzle 46 to spray the target area.

[0038] Please see Figures 1 to 3 In this embodiment, the mixing structure 6 includes an inlet pipe 61 fixedly connected to the output end of the three-way valve 41, a throat 62 fixedly connected to the right end of the inlet pipe 61, a diffuser 63 fixedly connected between the throat 62 and the input end of the booster pump 43, and a stirring blade 64 rotatably connected inside the throat 62. The two drugs initially converge at the three-way valve 41 and then enter the inlet pipe 61 of the mixing structure 6. As the drugs enter the throat 62, the flow rate increases due to the narrow neck of the throat 62. Driven by the high-speed flow, the stirring blade 64 begins to rotate, allowing the two drugs to mix thoroughly during the flow process, improving the mixing uniformity of the drugs, thereby enhancing the spraying effect, reducing the diameter of the atomized particles from the nozzle 46, and thus increasing the blade adhesion rate.

[0039] Among them, the throat 62 is a narrow-necked tube, the outer diameter of the stirring blade 64 is adapted to the inner diameter of the throat 62, the inlet pipe 61 and the diffuser pipe 63 are both conical, and the inlet pipe 61 and the diffuser pipe 63 are arranged opposite to each other.

[0040] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, the outer side of the housing 1 is provided with a limiting structure 7 for limiting and clamping the spray bar 44. The limiting structure 7 includes a fixing block 71 fixedly connected to the outside of the housing 1, a connecting frame 72 fixedly connected to the outside of the fixing block 71, an abutment spring 73 fixedly connected to the inside of the connecting frame 72, and a clamping plate 74 fixedly connected to the other end of the abutment spring 73.

[0041] The device includes two sets of abutment springs 73 and clamping plates 74, arranged symmetrically inside the connecting frame 72. The clamping plates 74 abut against the outer wall of the spray bar 44. The limiting structure 7, through the cooperation of the fixing block 71, connecting frame 72, abutment springs 73, and clamping plates 74, can stably clamp and limit the spray bar 44, preventing it from shaking when the device is not in use, thus ensuring the stability of the device structure and facilitating the storage of the spray bar 44.

[0042] It should be noted that the housing 1 is a hollow cuboid, and a cover plate is detachably connected to the outside of the housing 1. The hollow cuboid structure of the housing 1 is compact, and the detachable cover plate facilitates maintenance and repair of the internal components. The design of the carrying strap 5 makes it easy for operators to carry the device for mobile spraying operations, and it is suitable for different spraying scenarios, such as farmland, orchards, and green belts.

[0043] The working principle of the above embodiments is as follows:

[0044] In use, different chemicals are added to the first storage tank 2 and the second storage tank 3 through the dosing pipe 410 and the corrugated expansion pipe 49, respectively. After dosing, the sealing cap is tightened to ensure airtightness. The first storage tank 2 and the second storage tank 3 store two different chemicals, and physical isolation between them ensures that the chemicals will not cross-contaminate. The chemical to be sprayed is selected through the three-way valve 41. The right end of the three-way valve 41 is connected to the second storage tank 3 through a connecting pipe, and the left end is connected to the first storage tank 2 through a delivery pipe 42.

[0045] The agent first passes through inlet pipe 61 and enters throat pipe 62. Throat pipe 62 is a narrow-necked pipe, and the internal stirring blades 64 rotate as the agent flows through, further agitating it. The mixed agent is pressurized by booster pump 43 to ensure that it can be sprayed out at a high pressure through spray bar 44. The booster pump 43 is powered by an externally connected small air compressor. By rotating adjusting sleeve 47, the distance of nozzle 46 is adjusted. The operator holds spray bar 44 and delivers the pressurized agent to nozzle 46 through hose 45. Nozzle 46 atomizes the agent and sprays it evenly onto the target area. When spray bar 44 is not in use, it is fixed to housing 1 by limiting structure 7. Clamping plate 74 clamps spray bar 44 under the action of abutment spring 73 to prevent spray bar 44 from shaking. Since the two agents are completely isolated during storage and transportation, it is not necessary to clean the entire device when changing agents; only the corresponding first storage tank 2 and second storage tank 3 need to be cleaned. Regularly check the sealing cap and all connections of the dosing pipe 410 to ensure reliable equipment operation.

Claims

1. A dual-chamber pressurized spraying device, characterized in that: Includes a box body (1), a first storage tank (2) and a second storage tank (3) detachably connected to the inside of the box body (1), and a shoulder strap (5) fixedly connected to the back of the box body (1). The inside of the box body (1) is provided with a spraying mechanism (4) extending to the outside for pressurizing and spraying the medicine discharged from the first storage tank (2) and the second storage tank (3). The outside of the box body (1) is provided with a mixing structure (6) for mixing the liquid in a single tank evenly. The spraying mechanism (4) includes a three-way valve (41) fixedly connected to the outside of the box (1), a delivery pipe (42) fixedly connected between the three-way valve (41) and the first storage tank (2), a booster pump (43) fixedly installed outside the box (1), a spray bar (44) set outside the booster pump (43), an adjusting sleeve (47) threadedly connected to the inside of the spray bar (44) and extending to its outside, a connector (48) fixedly connected to the top of the adjusting sleeve (47), and a nozzle (46) fixedly connected to the outside of the connector (48). The mixing structure (6) includes an inlet pipe (61) fixedly connected to the output end of the three-way valve (41), a throat pipe (62) fixedly connected to the right end of the inlet pipe (61), a diffuser pipe (63) fixedly connected between the throat pipe (62) and the input end of the booster pump (43), and a stirring blade (64) rotatably connected inside the throat pipe (62).

2. The dual-chamber pressurized spraying device according to claim 1, characterized in that: The right end of the three-way valve (41) is fixedly connected to the second storage tank (3) by a connecting pipe. The first storage tank (2) and the second storage tank (3) are both hollow cylinders. The volume of the first storage tank (2) and the second storage tank (3) increases from left to right.

3. The dual-chamber pressurized spraying device according to claim 1, characterized in that: The top of the first storage tank (2) and the second storage tank (3) are both provided with a dosing assembly. The dosing assembly includes a dosing pipe (410) fixedly connected to the top of the tank body (1) and a corrugated telescopic pipe (49) fixedly connected between the dosing pipe (410) and the first storage tank (2). The top of the dosing pipe (410) is threaded with a sealing cap.

4. The dual-chamber pressurized spraying device according to claim 1, characterized in that: The throat (62) is a narrow-necked tube, the outer diameter of the stirring blade (64) is adapted to the inner diameter of the throat (62), the inlet pipe (61) and the diffuser pipe (63) are both conical, and the inlet pipe (61) and the diffuser pipe (63) are arranged opposite to each other.

5. The dual-chamber pressurized spraying device according to claim 1, characterized in that: A hose (45) is fixedly connected between the output end of the booster pump (43) and the spray bar (44). An anti-slip rubber pad is sleeved on the outside of the spray bar (44). A locking screw extending into the back of the spray bar (44) and abutting against the outer wall of the adjusting sleeve (47) is threadedly connected. Both the spray bar (44) and the adjusting sleeve (47) are hollow cylinders. The outer diameter of the adjusting sleeve (47) is adapted to the inner diameter of the spray bar (44). A sealing gasket is fixedly connected at the connection between the spray bar (44) and the adjusting sleeve (47).

6. The dual-chamber pressurized spraying device according to claim 1, characterized in that: The outer side of the housing (1) is provided with a limiting structure (7) for limiting and clamping the spray bar (44). The limiting structure (7) includes a fixing block (71) fixedly connected to the outside of the housing (1), a connecting frame (72) fixedly connected to the outside of the fixing block (71), an abutment spring (73) fixedly connected to the inside of the connecting frame (72), and a clamping plate (74) fixedly connected to the other end of the abutment spring (73).

7. A dual-chamber pressurized spraying device according to claim 6, characterized in that: The number of the abutment springs (73) and clamps (74) are two sets. The two sets of abutment springs (73) and clamps (74) are symmetrically distributed in the interior of the connecting frame (72). The two sets of clamps (74) abut against the outer wall of the spray bar (44).

8. A dual-chamber pressurized spraying device according to claim 1, characterized in that: The box (1) is a hollow cuboid, and a cover plate is detachably connected to the outside of the box (1).

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