Tobacco field intertillage weeding device

By designing a weeding and cultivation device for tobacco fields, and utilizing a ridge protection frame and spraying system, herbicides can be effectively sprayed on weeds on the sides and between the ridges, avoiding damage to the tobacco leaves and improving weeding efficiency and effectiveness.

CN223979353UActive Publication Date: 2026-03-10CHINA NAT TOBACCO CORP STAFF TRAINING COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Among the existing tobacco field weeding techniques, physical weeding is labor-intensive and incomplete, while spraying herbicides can easily damage tobacco plant leaves, resulting in poor weeding efficiency and effectiveness.

Method used

Design a tobacco field cultivation and weeding device, including a ridge support frame, a flexible belt and a wheeled trolley. The herbicide is introduced into the spray pipe through a micro water pump and a flexible pipe, and the atomizing nozzle sprays the herbicide on the weeds on the sides and between the ridges, avoiding the tobacco leaves.

Benefits of technology

Effectively control the spraying range of herbicides, avoiding tobacco leaves, and improving weed control efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tobacco planting field management, and particularly relates to a tobacco field intertillage weeding device which comprises a trolley composed of two ridge protection frames, a flexible belt connected with the two ridge protection frames and wheels. The ridge protection frame is arranged close to the ridge sides of two adjacent tobacco ridges, the top of the ridge protection frame is provided with a hand push rod and a pesticide liquid box, a micro water pump is arranged in the pesticide liquid box, and the output end of the micro water pump is connected with a pesticide spraying pipe arranged on the bottom face of the ridge protection frame through a flexible pipe penetrating to the outside; according to the utility model, the spraying range of the herbicide can be effectively controlled, the herbicide can be effectively sprayed to weeds on the ridge side and between ridges, tobacco plant leaves can be completely avoided, and the weeding efficiency and effect are greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of tobacco planting management technology, and in particular relates to a tobacco field cultivation and weeding device. Background Technology

[0002] Cultivation of tobacco ridges includes clearing weeds from the sides and between the ridges, as well as hilling up the ridges. Weeding can be done physically or by spraying herbicides. Physical weeding does not cause damage to the tobacco plants, but it is labor-intensive and does not remove weeds completely. Physical weeding is more effective and efficient, but since the tobacco plants are in the rosette stage and the lower leaves are in contact with the soil on the sides of the ridges, direct spraying of herbicides can easily damage the leaves on the sides of the ridges. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a weeding and cultivation device for tobacco fields. This invention can effectively control the spraying range of herbicides, effectively spraying weeds on the sides and between rows while completely avoiding tobacco leaves, thus significantly improving weeding efficiency and effectiveness.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A tobacco field cultivation and weeding device, the device comprising a trolley consisting of two protective ridge frames, a flexible belt connecting the two protective ridge frames, and wheels;

[0006] The protective frame is set against the side of the adjacent two tobacco ridges, and each protective frame is equipped with a push rod and a liquid tank at the top. The liquid tank is equipped with a micro water pump, and the output end of the micro water pump is connected to the spray pipe set on the bottom of the protective frame through a flexible pipe that extends to the outside. Several atomizing nozzles are opened on the spray pipe.

[0007] Preferably, the ridge protection frame includes a triangular plate with a horizontal bottom edge and an upward-facing inclined edge, and a top plate that is vertically connected to the inclined edge. The top plates of the two ridge protection plates are arranged opposite to each other and connected to the flexible belt in a pleated state. The top plate is fixed with a protrusion with a preset threaded hole. The two ends of the screw are provided with threads of opposite directions and are respectively screwed into the threaded holes of the corresponding protrusions.

[0008] Preferably, a bracket is provided below the top plate and the bracket is rotatably connected to the wheel axle, and the top of the push rod is vertically provided with a handle, and the bottom end is bent and connected to the top surface of the protrusion.

[0009] Preferably, the spray pipes on the bottom surface of the two protective ridges are staggered along the extension direction of the tobacco ridge. The spray pipes are bent pipes that are attached to the top plate and the side wall of the triangular plate, and the atomizing nozzles of the spray pipes are facing the ground.

[0010] Preferably, the bottom of the triangular plate is connected to the counterweight rod via a protective strap.

[0011] The working process of this utility model is as follows:

[0012] The spacing between rows in the same plot is the standard spacing (the spacing between rows in tobacco planting varies depending on factors such as tobacco variety, planting environment and cultivation mode. The common spacing between rows in tobacco planting is between 0.8 and 1.2 meters, and the specific spacing will be determined after clarifying each planting factor). Therefore, the spacing between the two protective ridge frames is first adjusted according to the width of the current working plot: by rotating the screw, the two protective ridge frames are moved towards each other or away from each other until the two protective ridge boards can be close to the tobacco plants of the two tobacco rows respectively. At the same time, due to the weight of the counterweight rod and the tight pressure on the top of the ridge, the protective belt can be driven to hang down and form a semi-enclosed space with the protective ridge frame and the flexible belt. The interior of this semi-enclosed space is the weeding operation space covering the soil on the sides and between the rows.

[0013] Then, the trolley is moved by operating the handle and push rod. At the same time, the ridge protection board is tilted and the lower point of the hypotenuse of the triangular plate is facing the direction of operation. This allows the ridge protection board to effectively cut into the bottom leaves of the tobacco plants and lift the leaves during the forward movement. On the one hand, this can prevent physical crushing damage to the leaves, and on the other hand, it can effectively expose the soil working surface on the side of the ridge next to the tobacco plants and bring it into the weeding operation space for herbicide spraying.

[0014] As the trolley moves, the miniature water pump is activated. The miniature water pump introduces the herbicide from the liquid tank into the spray pipe through a flexible tube and sprays it out from the atomizing nozzle to kill weeds on the sides and between rows in the weeding operation space.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention can effectively control the spraying range of the herbicide, that is, it can effectively spray weeds on the sides and between the rows, and can completely avoid tobacco leaves, thus greatly improving the weeding efficiency and effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the tobacco field weeding and cultivation device described in a specific implementation. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figure 1 As shown, a tobacco field cultivation and weeding device includes a trolley consisting of two protective ridge frames 1, a flexible belt 2 connecting the two protective ridge frames 1, and wheels 3.

[0019] The protective frame 1 includes a triangular plate 11 with a horizontal bottom edge and an upward-facing inclined edge, and a top plate 12 that is vertically connected to the inclined edge. The bottom of the triangular plate 11 is connected to the counterweight rod 14 through a protective strip 13.

[0020] The top plates of the two protective ridge plates 1 are arranged opposite each other and connected to the flexible belt 2 in a pleated state. The top plate 12 is fixed with a protrusion 15 with a preset threaded hole. The screw 16 has threads with opposite directions at both ends and is screwed into the threaded holes of the corresponding protrusion 15 respectively. The top plate 12 is provided with a bracket 31 and the bracket 31 is rotatably connected to the axle of the wheel 3. Two push rods 5 with handles 51 at the top and bent at the bottom are connected to the top surface of the corresponding protrusion 15.

[0021] Each of the two top plates 12 is also provided with a liquid tank 4. The liquid tank 4 is equipped with a micro water pump (not shown in the figure), and the output end of the micro water pump is connected to the spray pipe 41 provided on the bottom surface of the ridge support frame 1 through a flexible pipe (not shown in the figure) that extends to the outside. The spray pipes 41 on the bottom surface of the two ridge support frames are arranged alternately in front and behind along the extension direction of the tobacco ridge. The spray pipe 41 has a bent pipe structure that is close to the side wall of the top plate 12 and the triangular plate 11, and the spray pipe 41 is provided with an atomizing nozzle 42 facing the ground.

[0022] The working process of this utility model is as follows:

[0023] First, adjust the spacing between the two ridge protection frames according to the width of the current work plot: by rotating the screw 16, the two ridge protection frames 1 can be moved towards each other or away from each other until the two ridge protection plates 1 can be close to the tobacco plants of the two tobacco ridges respectively. At the same time, due to the weight of the counterweight rod 14 and its tight pressure on the top of the ridge, the protective belt 13 can be driven to hang down and form a semi-enclosed space with the ridge protection frame 1 and the flexible belt 2. The interior of this semi-enclosed space is a weeding operation space that covers the soil on the sides and between the ridges.

[0024] Then, the trolley is moved by operating the handle 51 and the push rod 5. At the same time, the ridge protection plate 1 is tilted and the lower point of the hypotenuse of the triangular plate 11 is facing the direction of operation. In this way, the ridge protection plate 1 can effectively cut into the bottom leaves of the tobacco plant and lift the leaves during the forward movement. On the one hand, it can prevent physical crushing damage to the leaves, and on the other hand, it can effectively expose the soil working surface on the side of the ridge next to the tobacco plant and bring it into the weeding operation space for herbicide spraying.

[0025] As the trolley moves, the micro water pump is activated. The micro water pump introduces the herbicide in the liquid tank 4 into the spray pipe 41 through the flexible tube and sprays it out from the atomizing nozzle 42 to kill weeds on the sides and between rows in the weeding operation space.

Claims

1. A tobacco field cultivating and weeding device characterized by comprising: The device comprises a trolley composed of two ridge protection frames, a flexible belt connecting the two ridge protection frames, and wheels; The ridge protection frames are arranged against the ridge sides of two adjacent tobacco ridges, and the top of each ridge protection frame is provided with a hand pushing rod and a liquid tank, a micro water pump is arranged in the liquid tank, and the output end of the micro water pump is connected with a pesticide spraying pipe arranged on the bottom surface of the ridge protection frame through a flexible pipe penetrating to the outside, and a plurality of atomizing nozzles are arranged on the pesticide spraying pipe.

2. The tobacco field cultivator and weeder according to claim 1, wherein The ridge protection frame comprises a triangular plate with a horizontal bottom edge and an upward inclined edge, and a top plate integrally and vertically connected with the inclined edge, the top plates of the two ridge protection plates are oppositely arranged and connected with the flexible belt in a crumpled state, a protrusion with a preset threaded hole is fixedly arranged on the top plate, and the screw rod is provided with threads in opposite directions and is respectively screwed with the threaded holes of the corresponding protrusions.

3. The tobacco field cultivator and weeder according to claim 2, wherein A support is arranged below the top plate and is rotationally connected with the wheel shaft of the wheel, and the top end of the hand pushing rod is vertically provided with a handle and the bottom end is bent and connected with the top surface of the protrusion.

4. The tobacco field cultivator and weeder of claim 2 wherein, The pesticide spraying pipes arranged on the bottom surfaces of the two ridge protection frames are staggered in the extension direction of the tobacco ridges, the pesticide spraying pipe is arranged in a bent pipe structure against the side wall of the top plate and the triangular plate, and the atomizing nozzles of the pesticide spraying pipe are arranged towards the ground.

5. The tobacco field cultivator and weeder of claim 2 wherein, The bottom of the triangular plate is connected with the counterweight rod through the protection belt.