Portable pesticide spraying machine for grain planting
By designing a portable sprayer for grain planting, the problems of stability of spraying equipment and operator health in areas with complex terrain have been solved. It enables flexible and efficient spraying operations, adapts to the height and width of different crops, and ensures the coverage effect of spraying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
In the Northwest region and mountainous and hilly areas, due to the complex terrain and the small-scale distribution of farmland, the use of large sprayers and drones for spraying is limited. The prolonged use of traditional backpack sprayers leads to operator fatigue and low efficiency, and poses health risks.
A portable sprayer for grain planting was designed, which combines a load-bearing plate, wheel frame, front wheel, steering sleeve, steering rod, connecting plate, support arm, support wheel and handle, and is equipped with adjustment components and electric sprayer to achieve stability and flexibility adjustment to adapt to different crop heights and widths.
It improves the stability and efficiency of spraying operations, reduces operator fatigue, avoids pesticide spills and skin contact risks, ensures operator health and safety, and achieves effective spraying coverage for tall crops.
Smart Images

Figure CN223979343U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pesticide spraying equipment technical field, concretely is a portable pesticide spraying machine for grain planting. BACKGROUND
[0002] The healthy growth of crops cannot be separated from meticulous management, especially in the aspect of disease and pest control. In order to ensure that crops can grow vigorously and obtain a bountiful harvest, it is essential to regularly spray various drugs during the growth stage of crops to drive away diseases and pests. At present, crop pesticide spraying operations mainly rely on the following equipment: backpack sprayers, pesticide spraying vehicles and unmanned aerial vehicle pesticide spraying.
[0003] However, in the northwest region and other mountainous and hilly areas, due to complex terrain, fragmented farmland and small block distribution, the application of large pesticide spraying vehicles and unmanned aerial vehicle pesticide spraying is greatly limited. These modern equipment often cannot play its advantages of high efficiency in these areas. At the same time, although the traditional backpack sprayer is flexible and portable, long-term backpack operation will make the user extremely tired, not only affecting work efficiency, but also possibly adversely affecting the user's physical health.
[0004] Therefore, in view of the pesticide spraying demand of small block farmland in mountainous and hilly areas, it is urgent to design a new type of portable pesticide spraying device, aiming to reduce labor intensity, use conveniently and flexibly, and improve work efficiency. CONTENT OF THE UTILITY MODEL
[0005] The utility model discloses a portable pesticide spraying machine for grain planting, aiming at solving the problems that in the background art, in the northwest region and other mountainous and hilly areas, due to complex terrain, fragmented farmland and small block distribution, the application of large pesticide spraying vehicles and unmanned aerial vehicle pesticide spraying is greatly limited, and although the traditional backpack sprayer is flexible and portable, long-term backpack operation will make the user extremely tired, not only affecting work efficiency, but also possibly adversely affecting the user's physical health.
[0006] The utility model provides an improved solution for the above problems:
[0007] A portable pesticide spraying machine for grain planting, comprising a bearing plate, the front end of the bearing plate is fixedly connected with a wheel support in the middle, the lower end of the wheel support is rotatably connected with a front wheel, the rear end of the bearing plate is fixedly connected with a steering sleeve in the middle, the steering sleeve is rotatably connected with a steering rod, the lower end of the steering rod is fixedly connected with a connecting plate, the lower surface of the connecting plate is symmetrically connected with two support arms, the lower end of the support arm is rotatably connected with a support wheel, the upper end of the steering rod is fixedly connected with a handrail, the upper surface of the bearing plate is connected with an electric sprayer, an adjusting assembly is arranged on the upper surface of the front end of the bearing plate on one side of the electric sprayer;
[0008] Specifically, the adjustment assembly includes two track rods symmetrically connected to the upper surface of the front end of the support plate. The upper ends of the track rods are fixedly connected via a connecting plate a. A movable block is slidably connected inside the track rod. The middle of the movable block is threadedly connected to the lower end of a lead screw. A knob is fixedly connected to the upper end of the lead screw through the connecting plate a. Fixed shafts are fixedly connected to both ends of the movable block. Connecting parts are hinged to the fixed shafts. Telescopic parts are fixedly connected to the connecting parts. The lower end of a connecting plate is fixedly connected to one side of the fixed shaft and on the upper surface of the movable block. A retaining sleeve is fixedly connected to the upper end of the connecting plate.
[0009] Specifically, the telescopic component is a linear telescopic mechanism, comprising a fixed tube and a movable rod slidably nested therein.
[0010] Furthermore, the fixing tube can be snapped into a ferrule.
[0011] Furthermore, the spray pipe can be tied to the fixed tube and the movable rod with cable ties. The spray pipe is connected to the outlet of the electric sprayer, and a nozzle is connected to the spray pipe.
[0012] Furthermore, the handrail is equipped with a switch for controlling the start and stop of the electric sprayer.
[0013] Furthermore, the support plate is provided with a mounting base, and the mounting base has a snap-fit groove that matches the bottom of the electric sprayer box.
[0014] Furthermore, the track rod is provided with a sliding groove that is adapted to the moving block.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model, through ingenious structural design, organically combines components such as the support plate, wheel frame, front wheel, steering sleeve, steering rod, connecting plate, support arm, support wheel, and handrail. The specially designed mounting base on the support plate securely fixes the bottom of the electric sprayer within its locking groove, ensuring the stability of the equipment during operation. In actual spraying operations, the operator simply needs to hold the handrail with both hands, and with the cooperation of the front wheel and two support wheels, the sprayer can move smoothly forward in the furrows between two rows of crops. This innovative design effectively solves the problems of operator fatigue and limited work efficiency associated with traditional backpack sprayers during prolonged operation. Furthermore, it avoids the risk of pesticide spillage or leakage from direct contact between the sprayer and the user's back, thus protecting the operator's health and safety.
[0017] 2. This utility model is equipped with an adjustment component. During spraying, the user can adjust the length of the telescopic component according to the actual width of the crops on both sides of the furrow where the spraying device is located, ensuring that the spraying range can completely cover the crops on the ridge, achieving comprehensive pesticide spraying. Secondly, by simply turning the knob, the lead screw can be driven to rotate. The rotation of the lead screw will then drive the moving block to rise, synchronously raising the spraying pipe on the telescopic component, thereby achieving adjustment of the spraying height. The above operations make the adjustment process flexible and convenient, greatly improving the adaptability and efficiency of spraying operations.
[0018] 3. This utility model, through the setting of an adjustment component and the clever design of a connecting plate and a retainer, is particularly suitable for tall crops such as corn. When spraying pesticides, the connector connected to the telescopic component can be easily rotated upwards by 90 degrees, and then the fixed tube of the telescopic component can be pressed and locked into the retainer. This ingenious design allows the nozzle on the spray pipe to be aimed at the tall crops for spraying, ensuring that the pesticide can be evenly and effectively covered on the target crops. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0021] Figure 3 This is a schematic diagram of the structure of the present invention after the electric sprayer has been removed;
[0022] Figure 4 This is a partial structural schematic diagram of the adjustment component of this utility model;
[0023] Figure 5 This is a schematic diagram of the working state of this utility model;
[0024] In the diagram: 1. Bearing plate; 101. Mounting base; 1011. Snap-fit groove; 2. Wheel frame; 3. Front wheel; 4. Steering sleeve; 5. Steering rod; 6. Connecting plate; 7. Support arm; 8. Support wheel; 9. Handrail; 10. Electric sprayer; 11. Adjustment assembly; 1101. Track rod; 11011. Slide groove; 1102. Connecting plate a; 1103. Moving block; 1104. Lead screw; 1105. Knob; 1106. Fixed shaft; 1107. Connecting piece; 1108. Telescopic piece; 11081. Fixed pipe; 11082. Movable rod; 1109. Connecting plate; 1110. Sleeve; 12. Spraying pipe; 13. Switch; 14. Nozzle; Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-5 A portable sprayer for grain planting includes a support plate 1, a wheel frame 2 fixedly connected to the middle of the front end of the support plate 1, a front wheel 3 rotatably connected to the lower end of the wheel frame 2, a steering sleeve 4 fixedly connected to the middle of the rear end of the support plate 1, a steering rod 5 rotatably connected inside the steering sleeve 4, a connecting plate 6 fixedly connected to the lower end of the steering rod 5, two support arms 7 symmetrically connected to the lower surface of the connecting plate 6, support wheels 8 rotatably connected to the lower end of the support arms 7, a handrail 9 fixedly connected to the upper end of the steering rod 5, an electric sprayer 10 connected to the upper surface of the support plate 1, and an adjustment component 11 located on one side of the electric sprayer 10 and on the upper surface of the front end of the support plate 1.
[0027] The adjustment assembly 11 includes two track rods 1101 symmetrically connected to the upper surface of the front end of the support plate 1. The upper ends of the track rods 1101 are fixedly connected by a connecting plate a1102. A moving block 1103 is slidably connected inside the track rods 1101. The middle of the moving block 1103 is threadedly connected to the lower end of the lead screw 1104. A knob 1105 is fixedly connected to the upper end of the lead screw 1104 through the connecting plate a1102. Fixed shafts 1106 are fixedly connected to both ends of the moving block 1103. A connecting piece 1107 is hinged on the fixed shaft 1106. A telescopic piece 1108 is fixedly connected to the connecting piece 1107. The lower end of a connecting plate 1109 is fixedly connected to one side of the fixed shaft 1106 and on the upper surface of the moving block 1103. A retainer 1110 is fixedly connected to the upper end of the connecting plate 1109.
[0028] The telescopic component 1108 is a linear telescopic mechanism, including a fixed tube 11081 and a movable rod 11082 that is slidably nested therein.
[0029] Among them, the fixing tube 11081 can be snapped into the sleeve 1110.
[0030] It should be noted that the 1110 card sleeve is a C-type pipe clamp, which is existing technology, and its structure and principle will not be described in detail.
[0031] The spray pipe 12 can be tied to the fixed pipe 11081 and the movable rod 11082 with cable ties. The spray pipe 12 is connected to the outlet of the electric sprayer 10, and the spray pipe 12 is connected to the nozzle 14.
[0032] The handrail 9 is equipped with a switch 13 that controls the start and stop of the electric sprayer 10.
[0033] The support plate 1 is provided with a mounting base 101, and the mounting base 101 is provided with a snap-fit groove 1011 that matches the bottom of the electric sprayer 10 box.
[0034] The track rod 1101 is provided with a sliding groove 11011 that is adapted to the moving block 1103.
[0035] Working principle:
[0036] First, the operator needs to hold the handle 9 with both hands and push the sprayer to the furrow between two rows of crops. Next, depending on the height of the target crop, the operator needs to turn the knob 1105 to rotate the lead screw 1104. Since the external thread of the lead screw 1104 meshes with the internal thread of the moving block 1103, the rotation of the lead screw will cause the moving block 1103 to move up and down. The movement of the moving block 1103 will further drive the telescopic component 1108 and the spraying pipe 12 connected to it to rise or fall to a suitable height to ensure that the spraying pipe 12 can effectively cover the target area.
[0037] After the height of the spray pipe 12 is adjusted, the coverage width of the spray also needs to be adjusted. This step is achieved by adjusting the length of the movable rod 11082 of the telescopic component 1108. The operator needs to ensure that the total length of the fixed pipe 11081 and the movable rod 11082 can completely cover the width of the crops on the ridge below. Through this adjustment, the spray pipe 12, fixed to the fixed pipe 11081 and the movable rod 11082, can evenly spray the pesticide solution onto the surface of the crops through the nozzle 14.
[0038] After completing the above adjustments, the operator can turn on switch 13 to start the electric sprayer 10. The electric sprayer 10 will deliver the pesticide stored in its tank through the spray pipe 12 to the nozzle 14 and spray it out from the nozzle 14, thereby effectively spraying the crops below the nozzle 14.
[0039] For tall crops like corn, the operator can rotate the connector 1107, which is connected to the telescopic component 1108, upwards by 90 degrees. Then, the fixing tube of the telescopic component 1108 is pressed and snapped into the sleeve 1110. This adjustment allows the nozzle 14 on the spray pipe 12 to spray tall crops more effectively, ensuring that the pesticide reaches the target area and improving the effectiveness and quality of the spraying.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A portable pesticide spraying machine for grain planting, comprising a bearing plate (1), a wheel frame (2) is fixedly connected to the middle of the front end of the bearing plate (1), and a front wheel (3) is rotatably connected to the lower end of the wheel frame (2), characterized in that: The rear end of the bearing plate (1) is fixedly connected with a steering sleeve (4), the steering sleeve (4) is rotationally connected with a steering rod (5), the lower end of the steering rod (5) is fixedly connected with a connecting plate (6), the lower surface of the connecting plate (6) is symmetrically connected with two supporting arms (7), the lower end of the supporting arm (7) is rotationally connected with a supporting wheel (8), the upper end of the steering rod (5) is fixedly connected with a handrail (9), the upper surface of the bearing plate (1) is connected with an electric sprayer (10), an adjusting assembly (11) is arranged on the side of the electric sprayer (10) and on the upper surface of the front end of the bearing plate (1); The adjusting assembly (11) comprises two track rods (1101) symmetrically connected to the upper surface of the front end of the bearing plate (1), the upper ends of the track rods (1101) are fixedly connected through a connecting plate a (1102), the track rods (1101) are slidably connected with a moving block (1103), the middle of the moving block (1103) is threadedly connected with the lower end of a lead screw (1104), the upper end of the lead screw (1104) is fixedly connected with a knob (1105) penetrating through the connecting plate a (1102), both ends of the moving block (1103) are fixedly connected with a fixed shaft (1106), the fixed shaft (1106) is hingedly connected with a connecting piece (1107), the connecting piece (1107) is fixedly connected with an extension piece (1108), the lower end of an adapter plate (1109) is fixedly connected to the upper surface of the moving block (1103) on the side of the fixed shaft (1106), and the upper end of the adapter plate (1109) is fixedly connected with a clamping sleeve (1110).
2. The portable pesticide spraying machine for planting food crops according to claim 1, characterized in that: The extension piece (1108) is a linear extension mechanism, comprising a fixed tube (11081) and a movable rod (11082) slidably nested in the fixed tube (11081).
3. The portable pesticide spraying machine for planting food crops according to claim 2, characterized in that: The fixed tube (11081) can be clamped with the clamping sleeve (1110).
4. The portable pesticide spraying machine for planting food crops according to claim 3, characterized in that: The fixed tube (11081) and the movable rod (11082) can be bound with a spray pipe (12) through a cable tie, the spray pipe (12) is connected with a medicine outlet of the electric sprayer (10), and a spray head (14) is connected to the spray pipe (12).
5. The portable pesticide spraying machine for grain planting according to claim 1, characterized in that: The handrail (9) is provided with a switch (13) for controlling the start and stop of the electric sprayer (10).
6. The portable pesticide spraying machine for grain planting according to claim 1, characterized in that: The bearing plate (1) is provided with a mounting base (101), and the mounting base (101) is provided with a clamping groove (1011) matched with the bottom of the box body of the electric sprayer (10).
7. The portable pesticide spraying machine for grain planting according to claim 1, characterized in that: The track rod (1101) is provided with a sliding groove (11011) matched with the moving block (1103).