Precipitation-preventing sprayer pesticide box structure
By driving the stirring impeller and cam to rotate through the flow of the medicine liquid, the problems of medicine liquid sedimentation and motor dependence are solved, and uniform mixing of medicine liquid and cost reduction are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG OUSEN MACHINERY
- Filing Date
- 2025-07-19
- Publication Date
- 2026-05-15
AI Technical Summary
Existing sprayer tanks are prone to pesticide sedimentation during spraying, and require an additional motor to maintain uniform mixing, which increases manufacturing costs and weight.
The impeller is driven by the flow of the medicine liquid, which in turn drives the impeller and cam to rotate, causing the lifting plate to rise and fall, thus achieving self-mixing of the medicine liquid and reducing reliance on the motor.
This achieves uniform mixing of the medicine solution, reduces costs and the weight of the medicine box, and avoids the need for an additional motor.
Smart Images

Figure CN224237244U_ABST
Abstract
Description
Technical fields:
[0001] This utility model belongs to the technical field of sprayers, and specifically refers to a tank structure for an anti-settling sprayer. Background technology:
[0002] Sprayers (including agricultural plant protection sprayers, sanitation and disinfection sprayers, and garden maintenance sprayers) are key pieces of equipment widely used in pesticide spraying, disinfection and sterilization, foliar fertilization, and other operational scenarios. Their working principle typically involves storing the pesticide solution in a tank, pressurizing it through a pumping system, and then atomizing it through the nozzle before spraying it out.
[0003] Most existing sprayers are equipped with a stirring structure to ensure that the liquid medicine in the tank is mixed evenly during spraying. Some also require an additional motor, which greatly increases the manufacturing cost and weight, and needs to be improved. Summary of the Invention:
[0004] The purpose of this invention is to provide a tank structure for an anti-settling sprayer to solve the technical problems mentioned in the background section.
[0005] This utility model is implemented as follows:
[0006] A chemical tank structure for an anti-settling sprayer includes a tank body with an inlet and an outlet. A nozzle is externally connected to the tank body. Chemical solution within the tank body is pumped to the nozzle via a pumping system. A horizontally arranged partition divides the tank body into a liquid chamber and an installation chamber. A filter plate is installed in the liquid chamber. A connecting pipe is provided on the partition, connecting the liquid chamber and the installation chamber. A circular chamber, eccentrically positioned relative to the connecting pipe, is connected to the connecting pipe. A drive impeller is rotatably connected within the circular chamber, and a stirring impeller is rotatably connected within the installation chamber. The stirring impeller and the drive impeller are coaxially fixed. The installation chamber is connected to the pumping system.
[0007] By adopting the above technical solution, in actual use, the mixed medicine solution is poured into the liquid chamber through the inlet. The medicine solution in the liquid chamber is then transported to the nozzle through the connecting pipe and the pumping system. After flowing through the connecting pipe and the circular container chamber, the medicine solution enters the installation chamber. The flow of the medicine solution drives the impeller to rotate, which in turn drives the stirring impeller to stir the solution in the installation chamber, thus promoting uniform mixing of the medicine solution in the installation chamber. Since the stirring impeller is driven by the flow of the medicine solution, no additional motor is required, which helps reduce costs and the weight of the medicine tank.
[0008] Preferably, a lifting plate is slidably connected to the partition plate, a cam is rotatably connected inside the mounting cavity, the cam is coaxially fixed with the driving impeller, the cam is located below the lifting plate, a connecting rod is provided on the lifting plate, a guide groove is opened on the wheel surface of the cam, one end of the connecting rod slides in the guide groove, and the cam drives the lifting plate to rise and fall through the connecting rod.
[0009] By adopting the above technical solution, the drive impeller and the cam are coaxially connected. The drive impeller rotates and drives the cam to rotate. Through the cooperation between the cam and the connecting rod, the lifting plate is raised and lowered to stir the liquid in the liquid chamber, which is beneficial to the mixing of the liquid in the liquid chamber.
[0010] Preferably, the lifting plate is made of hard plastic and is able to float in the liquid medicine.
[0011] By adopting the above technical solution, it is beneficial to reduce the weight of the lifting plate and the pressure on the connecting rod.
[0012] Preferably, the lifting plate has a hollow structure.
[0013] By adopting the above technical solutions, it is beneficial to further reduce the weight of the lifting plate, reduce the pressure on the connecting rod, and improve the service life of the connecting rod.
[0014] Preferably, the end of the connecting rod that is inserted into the guide groove is machined into a spherical shape, and the cross-section of the guide groove is convex.
[0015] By adopting the above technical solution, it is beneficial to reduce the contact area between the end of the connecting rod that is stuck in the guide groove and the inner wall of the guide groove, and to reduce the friction of the connecting rod relative to the cam during movement.
[0016] Preferably, there are two drive impellers, and the connecting pipe and the receiving chamber are both arranged corresponding to the drive impellers, and the two drive impellers are fixed coaxially.
[0017] By adopting the above technical solution, in actual use, the two drive wheels drive the cam and the stirring impeller to rotate, which helps to increase the rotation speed of the stirring impeller and the cam.
[0018] Preferably, the cam and the stirring impeller are located between the two drive impellers.
[0019] By adopting the above technical solution, it is beneficial to ensure that the force is evenly distributed at both ends of the cam and the impeller shaft.
[0020] Preferably, the inner wall of the bottom end of the mounting cavity is inclined downward in the direction close to the stirring impeller.
[0021] By adopting the above technical solution, the liquid medicine in the installation cavity is concentrated near the stirring impeller, which is beneficial to improving the stirring effect.
[0022] The outstanding advantages of this utility model compared to the prior art are:
[0023] 1. This utility model drives the stirring impeller to rotate by the flow of the medicine liquid, eliminating the need for an additional motor, which helps reduce costs and the weight of the medicine tank;
[0024] 2. In this utility model, the drive impeller and the cam are coaxially connected. The drive impeller rotates and drives the cam to rotate. Through the cooperation between the cam and the connecting rod, the lifting plate is raised and lowered to stir the liquid in the liquid chamber, which is beneficial to the mixing of the liquid in the liquid chamber.
[0025] 3. The lifting plate of this utility model can float in the liquid medicine, which helps to reduce the pressure on the connecting rod. Attached image description:
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a sectional view of the present invention, mainly showing the internal structure of the box;
[0028] Figure 3 This is a partial sectional view of the present invention, mainly showing the internal structure of the connecting pipes and the circular enclosure.
[0029] Figure 4 This is a partial sectional view of the cam and the lifting plate of this utility model, mainly showing the connection relationship between the two;
[0030] Figure 5 yes Figure 4 The enlarged view of section A mainly shows the connection structure of the connecting rod and the cam.
[0031] Instruction manual drawing reference numerals: 1. Box body; 11. Liquid chamber; 12. Mounting chamber; 13. Liquid inlet; 14. Liquid outlet; 2. Partition; 3. Connecting pipe; 31. Circular chamber; 32. Drive impeller; 4. Stirring impeller; 5. Filter plate; 6. Lifting plate; 61. Top outlet; 62. Connecting part; 621. Connecting rod; 7. Cam; 71. Guide groove. Detailed implementation method:
[0032] The present invention will be further described below with reference to specific embodiments:
[0033] This application discloses a tank structure for an anti-settling sprayer. See also... Figure 1 and Figure 2The device includes a housing 1, inside which a partition 2 is fixed. The partition 2 is horizontally arranged and divides the inner cavity of the housing 1 into a liquid chamber 11 and a mounting chamber 12. The liquid chamber 11 is located above the partition 2 and the mounting chamber 12. The upper end of the housing 1 has a liquid inlet 13 communicating with the liquid chamber 11, through which the stirred medicine is injected into the housing 1. The mounting chamber 12 is located below the partition 2, and the lower end of the housing 1 has a liquid outlet 14 communicating with the mounting chamber 12. In actual use, the housing 1 is connected to an external pumping system and a nozzle. The pumping system delivers the medicine from the mounting chamber 12 to the nozzle through the liquid outlet 14, and the medicine is sprayed out from the nozzle.
[0034] See Figure 1 and Figure 2 A connecting pipe 3 is fixedly connected to the partition 2. The connecting pipe 3 extends into the installation cavity 12 and is vertically arranged. The installation cavity 12 and the liquid cavity 11 are connected through the connecting pipe 3. After the liquid in the liquid cavity 11 enters the installation cavity 12 through the connecting pipe 3, it is then transported to the nozzle by the pumping system.
[0035] See Figure 2 and Figure 3 A circular chamber 31 is fixed on the connecting pipe 3. The circular chamber 31 is integrally formed with the connecting pipe 3 and is connected to the connecting pipe 3. The circular chamber 31 is eccentrically positioned with the connecting pipe 3 and is located within the mounting cavity 12. The circular chamber 31 is connected to the mounting cavity 12 and the liquid cavity 11 through the connecting pipe 3. The liquid medicine in the liquid cavity 11 flows through the connecting pipe 3 and the circular chamber 31 before entering the mounting cavity 12.
[0036] See Figure 2 and Figure 3 A drive impeller 32 is rotatably connected inside the circular housing 31, and the axis of rotation of the drive impeller 32 is coaxial with the axis of the circular housing 31.
[0037] See Figure 2 and Figure 3 There are two drive impellers 32. The rotation axis of the drive impeller 32 is perpendicular to the length of the connecting pipe 3, and parallel to the distribution direction of the two drive impellers 32. The position and number of the connecting pipe 3 and the circular housing 31 correspond one-to-one with the position and number of the drive impellers 32. The drive impellers 32 are rotatably connected within the corresponding circular housing 31. The two drive impellers 32 are coaxially and fixedly connected.
[0038] See Figure 2 and Figure 3An agitator 4 is rotatably connected inside the mounting cavity 12. The agitator 4 is located between two drive impellers 32, and the drive impellers 32 and the agitator 4 are coaxially and fixedly connected. When the liquid medicine in the liquid cavity 11 flows into the mounting cavity 12, the water flow drives the two drive impellers 32 to rotate, which in turn drives the agitator 4 to rotate and agitate the liquid medicine in the mounting cavity 12.
[0039] When the sprayer is operating, the pumping system located outside the tank operates, drawing the liquid pesticide from the mounting chamber 12 and delivering it to the nozzle for spraying. As the amount of pesticide in the mounting chamber 12 decreases, the pesticide in the liquid chamber 11, under the influence of gravity and pressure difference, enters the mounting chamber 12 through the connecting pipe 3 and the circular container chamber 31. As the pesticide flows through the circular container chamber 31, it drives the drive impeller 32 to rotate. Since the axis of the connecting pipe 3 is located on the same side of the axis of the corresponding drive impeller 32, the two drive impellers 32 rotate in the same direction. This helps to increase the rotational speed of the drive impeller 32 and the stirring impeller 4, thereby improving the stirring effect.
[0040] See Figure 2 The bottom inner wall of the mounting cavity 12 is inclined, and the inner wall of the mounting cavity 12 is inclined downward along the direction close to the impeller 4. The liquid outlet 14 is located below the impeller 4.
[0041] See Figure 2 and Figure 3 A filter plate 5 is fixed on the housing 1. The filter plate 5 is located in the liquid chamber 11 and above the partition 2. The filter plate 5 is arranged horizontally. The filter plate 5 is used to filter particulate matter in the liquid medicine, reducing the particulate matter from entering the pumping system through the outlet 14 after passing through the connecting pipe 3 and the installation chamber 12.
[0042] See Figure 2 and Figure 4 A lifting plate 6 is slidably connected to the partition 2. The lifting plate 6 includes a top part 61 and a connecting part 62. The top part 61 is located above the partition 2, and its volume is larger than that of the connecting part 62. The top part 61 moves up and down to stir the liquid in the liquid chamber 11. The connecting part 62 is located below the top part 61 and passes through the partition 2, moving up and down to connect with the partition 2. The connecting part 62 and the top part 61 are integrally formed, and the top part 61 is connected to the partition 2 through the connecting part 62. Both the top part 61 and the connecting part 62 are made of hard plastic, and both have a hollow structure, which helps to reduce the weight of the lifting plate 6 and the pressure on the connecting rod 621. A cam 7 is rotatably connected in the mounting cavity 12. The cam 7 is located between two drive impellers 32, and the cam 7, stirring impeller 4, and drive impeller 32 are coaxially fixedly connected.
[0043] See Figure 4 and Figure 5The cam 7 is located directly below the connecting part 62. A connecting rod 621 is fixed to the lower end of the connecting part 62. A guide groove 71 is formed on the wheel surface of the cam 7, and the guide groove 71 is arranged circumferentially around the cam 7. The connecting rod 621 is located above the cam 7. The end of the connecting rod 621 near the guide groove 71 is machined into a spherical shape. One end of the connecting rod 621 is inserted into the guide groove 71. The cross-section of the guide groove 71 is convex to prevent the end of the connecting rod 621 from detaching from the guide groove 71 and to reduce the contact area between the inner wall of the guide groove 71 and the inserted end of the connecting rod 621, thereby reducing the friction between the connecting rod 621 and the cam 7. The rotation of the cam 7 drives the connecting rod 621 to rise and fall, which in turn drives the lifting plate 6 to rise and fall.
[0044] When spraying is performed, the drive impeller 32 rotates, which in turn drives the stirring impeller 4 to rotate, and at the same time drives the cam 7 to rotate. Through the cooperation between the cam 7 and the connecting rod 621, the lifting plate 6 is driven to rise and fall to stir the liquid in the liquid chamber 11, which is beneficial to the mixing of the liquid in the liquid chamber 11.
[0045] The implementation principle of this embodiment is as follows: the flow of the liquid medicine drives the impeller 32 to rotate, which in turn drives the stirring impeller 4 and the cam 7 to rotate, thus stirring the liquid medicine in the mounting cavity 12 and the liquid cavity 11. No additional motor is required, which helps reduce manufacturing costs and weight.
[0046] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.
Claims
1. A tank structure for an anti-settling sprayer, comprising a tank body (1), an inlet (13) and an outlet (14) on the tank body (1), and a nozzle connected externally to the tank body (1), wherein the liquid medicine inside the tank body (1) is transported to the nozzle through a pumping system, characterized in that: A partition (2) is horizontally arranged on the box body (1). The partition (2) divides the inner cavity of the box body (1) into a liquid cavity (11) and an installation cavity (12). A filter plate (5) is provided in the liquid cavity (11). A connecting pipe (3) is provided on the partition (2). The liquid cavity (11) and the installation cavity (12) are connected through the connecting pipe (3). A circular container (31) is provided on the connecting pipe (3) and communicates with the connecting pipe (3). The circular container (31) is eccentrically arranged relative to the connecting pipe (3). A drive impeller (32) is rotatably connected in the circular container (31). A stirring impeller (4) is rotatably connected in the installation cavity (12). The stirring impeller (4) is coaxially fixed with the drive impeller (32). The installation cavity (12) is connected to the pumping system.
2. The anti-settling sprayer tank structure according to claim 1, characterized in that: A lifting plate (6) is slidably connected to the partition plate (2). A cam (7) is rotatably connected inside the mounting cavity (12). The cam (7) is coaxially fixed with the driving impeller (32). The cam (7) is located below the lifting plate (6). A connecting rod (621) is provided on the lifting plate (6). A guide groove (71) is opened on the wheel surface of the cam (7). One end of the connecting rod (621) slides in the guide groove (71). The cam (7) drives the lifting plate (6) to rise and fall through the connecting rod (621).
3. The anti-settling sprayer tank structure according to claim 2, characterized in that: The lifting plate (6) is made of hard plastic and can float in the liquid medicine.
4. The anti-settling sprayer tank structure according to claim 3, characterized in that: The lifting plate (6) has a hollow structure.
5. The anti-settling sprayer tank structure according to claim 3, characterized in that: The end of the connecting rod (621) that is inserted into the guide groove (71) is machined into a spherical shape, and the cross section of the guide groove (71) is "convex".
6. The anti-settling sprayer tank structure according to claim 2, characterized in that: There are two drive impellers (32), and the connecting pipe (3) and the circular container (31) are both arranged corresponding to the drive impellers (32). The two drive impellers (32) are fixed coaxially.
7. The anti-settling sprayer tank structure according to claim 6, characterized in that: The cam (7) and the stirring impeller (4) are located between the two driving impellers (32).
8. The anti-settling sprayer tank structure according to claim 7, characterized in that: The bottom inner wall of the mounting cavity (12) is inclined downward along the direction close to the stirring impeller (4).