Pesticide spraying mechanism for pesticide spraying vehicle

Abstract

The pesticide spraying mechanism comprises a pesticide box, a liquid outlet of the pesticide box is communicated with a first inlet of a three-way electromagnetic valve a, a second inlet of the three-way electromagnetic valve a is communicated with the outside, an outlet of the three-way electromagnetic valve a is communicated with the negative pressure end of a water pump, and the positive pressure end of the water pump is communicated with an inlet of a three-way electromagnetic valve b. A first outlet of the three-way electromagnetic valve b is communicated with a liquid return port of the pesticide box, and a second outlet of the three-way electromagnetic valve b is communicated with a liquid inlet end of the nozzle. According to the pesticide spraying mechanism, by means of coordinated work of the three-way electromagnetic valve a, the water pump and the three-way electromagnetic valve b, pesticide liquid remaining in a pipeline can be emptied, corrosion of the pesticide liquid in the pipeline to the pipeline is prevented, the situation that use is affected by standing and layering of the pesticide liquid in the pipeline is also prevented, meanwhile, the pesticide liquid in the pesticide box can circularly flow, the effect of stirring the pesticide liquid is indirectly achieved, and the pesticide spraying efficiency is improved. The liquid medicine is prevented from layering or precipitating and the normal use of the liquid medicine is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine spraying machines, in particular to a medicine spraying mechanism for a medicine spraying vehicle. Background Art

[0002] Medicine spraying machines are applicable to the prevention and control of diseases and pests in forests, nurseries, orchards, and tea gardens, as well as in large fields such as cotton, wheat, paddy fields, and corn, and large areas of grasslands. They are also applicable to the prevention and control of diseases and pests of garden flowers, vegetables in vegetable gardens, and plants in greenhouse in cities and suburbs.

[0003] Generally, after the water pump of a medicine spraying machine is shut down after work, a part of the liquid medicine remains in the pipeline. Firstly, this part of the liquid medicine may corrode the pipeline. Secondly, this part of the liquid medicine may stratify after a period of time, which is not conducive to reuse. In addition, the liquid medicine in the medicine tank of the medicine spraying machine may also stratify after standing still if it is not used up, affecting the use. Therefore, there is an urgent need for a medicine spraying mechanism that can empty the liquid medicine in the pipeline to prevent damage to the pipeline and ensure the normal use of the liquid medicine. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a medicine spraying mechanism for a medicine spraying vehicle to solve the problems that the liquid medicine remaining in the pipeline of the medicine spraying machine causes pipeline damage, and the liquid medicine in the medicine tank may stratify after standing still if it is not used up, both of which affect the use of the liquid medicine.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A medicine spraying mechanism for a medicine spraying vehicle includes a medicine tank. The liquid outlet of the medicine tank is communicated with the first inlet of a three-way solenoid valve a. The second inlet of the three-way solenoid valve a is communicated with the outside. The outlet of the three-way solenoid valve a is communicated with the negative pressure end of a water pump. The positive pressure end of the water pump is communicated with the inlet of a three-way solenoid valve b. The first outlet of the three-way solenoid valve b is communicated with the liquid return port of the medicine tank. The second outlet of the three-way solenoid valve b is communicated with the liquid inlet end of a nozzle.

[0007] A further technical solution is that the liquid outlet of the medicine tank is located at the bottom of the medicine tank.

[0008] A further technical solution is that the liquid return port of the medicine tank is located above the waist position of the medicine tank.

[0009] A further technical solution is that an air inlet valve is arranged at the top of the medicine tank.

[0010] A further technical solution is that a liquid injection port is arranged at the top of the medicine tank.

[0011] A further technical solution is that a riding part is arranged on the side of the medicine tank.

[0012] A further technical solution is that a check valve is provided on the second inlet of the three-way solenoid valve a.

[0013] A further technical solution is that the water pump is a water-air dual-purpose pump.

[0014] Compared with the prior art, at least one of the following beneficial effects can be achieved by the present utility model:

[0015] The present utility model provides a pesticide spraying mechanism for a pesticide spraying vehicle. By the coordinated operation of the three-way solenoid valve a, the water pump and the three-way solenoid valve b, the mechanism can not only empty the pesticide liquid remaining in the pipeline, prevent the corrosion of the pipeline by the pesticide liquid in the pipeline, and prevent the pesticide liquid from standing and stratifying in the pipeline, which affects the use, but also circulate the pesticide liquid in the medicine box, indirectly stirring the pesticide liquid, preventing the pesticide liquid from stratifying or precipitating, and ensuring the normal use of the pesticide liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a pesticide spraying mechanism for a pesticide spraying vehicle according to the present utility model.

[0017] Figure 2 For the present utility model Figure 1 It is a schematic structural diagram of the medicine box in the present utility model.

[0018] Figure 3 For the present utility model Figure 2 It is a schematic structural diagram from a top view perspective.

[0019] Reference numerals: 1, medicine box; 2, three-way solenoid valve a; 3, water pump; 4, three-way solenoid valve b; 5, nozzle; 6, air inlet valve; 7, liquid injection port; 8, check valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that, without conflict, the implementation manners and features in the present utility model can be combined with each other.

[0023] It should be noted that like reference numerals and letters indicate like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Embodiment 1:

[0027] As shown in this embodiment Figure 1 、 Figure 2 and Figure 3 shown, a medicine spraying mechanism for a medicine spraying vehicle includes a medicine box 1. The liquid outlet of the medicine box 1 is communicated with the first inlet of a three-way solenoid valve a2. The second inlet of the three-way solenoid valve a2 is communicated with the outside. The outlet of the three-way solenoid valve a2 is communicated with the negative pressure end of a water pump 3. The positive pressure end of the water pump 3 is communicated with the inlet of a three-way solenoid valve b4. The first outlet of the three-way solenoid valve b4 is communicated with the liquid return port of the medicine box 1. The second outlet of the three-way solenoid valve b4 is communicated with the liquid inlet end of a nozzle 5.

[0028] After the pesticide spraying machine stops working, the water pump 3 is restarted, and the working states of the three-way solenoid valve a2 and the three-way solenoid valve b4 are controlled. The first working state, that is, the pipe cleaning state: the external environment, the water pump 3 and the liquid return port of the medicine tank 1 are connected, and the suction force of the water pump 3 is used to empty the liquid medicine remaining in the pipeline and return it to the medicine tank 1; the second working state, that is, the circulating flow state: the liquid outlet of the medicine tank 1, the water pump 3 and the liquid return port of the medicine tank 1 are connected, and the suction force of the water pump 3 is used to circulate the liquid medicine in the medicine tank 1 to prevent the liquid medicine from stratifying or precipitating; the third normal working state, that is, the pesticide spraying state: the liquid outlet of the medicine tank 1, the water pump 3 and the liquid inlet end of the nozzle 5 of the medicine tank 1 are connected, and the suction force of the water pump 3 is used to pump out the liquid medicine, which is then sprayed out through the nozzle 5 to complete the pesticide application work. This pesticide spraying mechanism has multiple working states and can be used for multiple purposes. It not only meets the daily pesticide application work, but also can prevent the damage of the liquid medicine to the pipeline and ensure the normal use of the liquid medicine.

[0029] Preferably, the liquid outlet of the medicine tank 1 is located at the bottom of the medicine tank 1.

[0030] The liquid outlet being located at the bottom of the medicine tank 1 is conducive to emptying the liquid medicine completely.

[0031] Preferably, the liquid return port of the medicine tank 1 is located above the waist of the medicine tank 1.

[0032] The liquid return port being located above the waist of the medicine tank 1 is conducive to the liquid medicine falling and disturbing the mixing of the liquid medicine.

[0033] Preferably, an air inlet valve 6 is provided at the top of the medicine tank 1.

[0034] The air inlet valve 6 is used to ensure the air pressure balance inside and outside the medicine tank 1.

[0035] Preferably, a liquid injection port 7 is provided at the top of the medicine tank 1.

[0036] The medicine and water can be replenished through the liquid injection port 7.

[0037] Preferably, a seating part is provided on the side of the medicine tank 1.

[0038] A seating part is provided on the side of the medicine tank 1 close to the head of the pesticide spraying machine, which reduces the additional installation of the seating components of the machine and also increases the storage space of the medicine tank 1.

[0039] Preferably, a check valve 8 is provided on the second inlet of the three-way solenoid valve a2.

[0040] When the second inlet of the three-way solenoid valve a2 is connected to the outside, the check valve 8 can prevent the liquid medicine in the pipeline from flowing out of the second inlet, causing pollution and waste.

[0041] Preferably, the water pump 3 is a water and gas dual-purpose pump.

[0042] When draining the liquid medicine in the pipeline, air may enter. Using a water-air dual-use pump can prevent the equipment from idling and causing damage.

[0043] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pesticide spraying mechanism for a pesticide spraying vehicle, comprising a pesticide box (1), characterized in that: The liquid outlet of the medicine box (1) is connected to the first inlet of the three-way solenoid valve a (2), the second inlet of the three-way solenoid valve a (2) is connected to the outside, the outlet of the three-way solenoid valve a (2) is connected to the negative pressure end of the water pump (3), the positive pressure end of the water pump (3) is connected to the inlet of the three-way solenoid valve b (4), the first outlet of the three-way solenoid valve b (4) is connected to the liquid return port of the medicine box (1), and the second outlet of the three-way solenoid valve b (4) is connected to the liquid inlet end of the nozzle (5).

2. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: The liquid outlet of the medicine box (1) is located at the bottom of the medicine box (1).

3. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: The liquid return port of the medicine box (1) is located above the waist of the medicine box (1).

4. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: An air inlet valve (6) is provided on the top of the medicine box (1).

5. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: The top of the medicine box (1) is provided with a liquid injection port (7).

6. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: A seating portion is provided on the side of the medicine box (1).

7. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: A one-way valve (8) is provided on the second inlet of the three-way solenoid valve a (2).

8. The pesticide spraying mechanism for a pesticide spraying vehicle according to claim 1, characterized in that: The water pump (3) is a water-gas dual-purpose pump.

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