A paddy field weeding device and a weeding method thereof

Abstract

The application discloses a paddy field weeding device in the form of a finger brush and a weeding method thereof. The device comprises a mounting rod, a power chassis and a plurality of weeding assemblies. The power chassis is fixed to the end of the mounting rod. The plurality of weeding assemblies are all mounted on the power chassis. The weeding assembly comprises an elastic finger brush and an inter-row cleaning assembly. The inter-row cleaning assembly comprises a rigid finger rod, a first connecting rod and a second connecting rod. One end of the first connecting rod and the second connecting rod is respectively rotationally connected to different positions of the power chassis. The rigid finger rod is mounted on the power chassis through the first connecting rod and the second connecting rod. The distance from the outer end of the elastic finger brush to the axis of the mounting rod is greater than the distance from the position of the rigid finger rod farthest away from the mounting rod to the axis of the mounting rod. The elastic finger brush made of nylon is adopted to remove weeds between two paddy rice seedlings. When the elastic finger brush contacts the paddy rice seedlings, the elastic finger brush will be bent and deformed, so that damage of the elastic finger brush to the paddy rice seedlings during weeding can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of agricultural machinery engineering, and particularly relates to a finger brush type paddy field weeding device and a weeding method thereof. BACKGROUND

[0002] Rice field weeds have an inhibitory effect on the growth of rice, increase the probability of occurrence of diseases and pests, and are a major cause of affecting the yield and quality of rice. Therefore, effective rice field weed control is an important guarantee for the safe production of rice. In recent years, mechanical weeding, as an environmentally friendly weeding technology, has been widely applied in the mechanized production of rice. However, the working environment in the rice field is relatively complex, and the height of the weeding device cannot be adjusted conveniently when the weeding device is in use. When the device is moved in the field, damage is easily caused.

[0003] Meanwhile, compared with inter-row weeds, inter-plant weeds of rice are mostly near-plant weeds, which have a greater impact on the growth of rice. However, due to the interference of rice crops, the existing weeding devices are difficult to completely remove the inter-plant weeds of rice seedlings without damaging the rice seedlings. SUMMARY

[0004] The present application aims to provide a finger brush type paddy field weeding device and a weeding method thereof.

[0005] The present application provides a finger brush type paddy field weeding device, which comprises a mounting rod, a power chassis and a plurality of weeding assemblies; the power chassis is fixed to the end of the mounting rod; the plurality of weeding assemblies are mounted on the power chassis and are uniformly distributed along the circumference of the mounting rod.

[0006] The weeding assembly comprises an elastic finger brush and an inter-row removal assembly; the inter-row removal assembly comprises a rigid finger rod, an elastic assembly, a first connecting rod and a second connecting rod; one end of the first connecting rod and the second connecting rod is respectively rotationally connected to different positions of the power chassis; the other end of the first connecting rod and the second connecting rod is respectively rotationally connected to different positions of the inner end of the rigid finger rod. The outer end of the rigid finger rod faces away from the side of the mounting rod; the elastic assembly is used to provide a restoring force to the first connecting rod; the distance from the outer end of the elastic finger brush to the axis of the mounting rod is greater than the distance from the position of the rigid finger rod farthest away from the mounting rod to the axis of the mounting rod.

[0007] As a preferred embodiment, the elastic assembly adopts a double torsion spring, which comprises a first torsion spring body, a second torsion spring body and a connecting curved rod connecting the two torsion spring bodies; the first connecting rod is rotationally connected to the power chassis through a pin shaft. The first torsion spring body and the second torsion spring body are respectively sleeved on both ends of the pin shaft. The connecting curved rod abuts against the first connecting rod; the end portions of the first torsion spring body and the second torsion spring body away from the connecting curved rod abut against the power chassis.

[0008] As preferred, the power chassis, the rigid finger, the first connecting rod and the second connecting rod form a parallelogram mechanism. The axis of the rigid finger is parallel to the axis of the mounting rod.

[0009] As preferred, the rigid finger comprises a connecting piece at the inner end and a weeding piece at the outer end; the connecting piece is in the shape of a U-shaped rod, comprising a connecting rod and two side rods parallel to each other; the elastic finger brush penetrates between the two side rods.

[0010] As preferred, in the same row interweeding assembly, the first connecting rod is arranged between the two side rods of the connecting piece; the second connecting rod is shared by two; the two second connecting rods are arranged at opposite sides of the two side rods respectively.

[0011] As preferred, the elastic finger brush is made of nylon material.

[0012] As preferred, the axis of the elastic finger brush is arranged along the radial direction of the mounting rod.

[0013] As preferred, the elastic finger brush is composed of a plurality of elastic rods arranged in an array.

[0014] The finger brush type paddy field weeding device and the weeding method thereof comprise the following steps:

[0015] Step one, place the weeding device between two adjacent rows of rice seedlings in the paddy field; the weeding piece in the rigid finger (4-1) is inserted into the soil obliquely; the outer end of the elastic finger brush (3) is extended into between two adjacent rice seedlings in the same row.

[0016] Step two, the external driving element drives the entire weeding device to rotate around the axis of the mounting rod (1); at the same time, the weeding device travels along the direction of the rice seedling arrangement; in the process of rotating the rigid finger (4-1) around the axis of the mounting rod (1), the soil between the two rows of rice seedlings is stirred to drive the weed roots, thereby achieving weeding; in the process of rotating the elastic finger brush (3) around the axis of the mounting rod (1), the outer end of the elastic finger brush (3) destroys the weeds between the rice seedlings in the same row.

[0017] The present application has the beneficial effects that:

[0018] 1. In the present application, the rigid finger and the power chassis are connected through the first connecting rod, the second connecting rod and the torsional spring; when the rigid finger contacts hard soil during weeding, the rotation angle of the first connecting rod and the second connecting rod relative to the power chassis is changed, so that the rigid finger can be lifted upward, avoiding the hard soil from jamming the weeding device or causing damage to the rigid finger.

[0019] 2. In the present application, the elastic finger brush is arranged radially, which is used to remove weeds between rice seedlings; at the same time, when the outer end of the elastic finger brush hits the rice seedling, the elastic finger brush can be deformed by bending, thereby avoiding damage to the rice seedling.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the row cleaning assembly structure of the present application;

[0022] Figure 3 is a schematic diagram of the state of the present application inserted into the soil;

[0023] Figure 4 is a schematic diagram of the position of the elastic finger brush when the present application is working in a rice field;

[0024] Figure 5 is a schematic diagram of the state when the elastic finger brush of the present application contacts the rice seedlings;

[0025] Wherein: 1, mounting rod; 2, power chassis; 3, elastic finger brush; 4-1, rigid finger rod; 4-2, double torsion spring; 4-3, first connecting rod; 4-4, second connecting rod. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the drawings.

[0027] As Figure 1 shown, a finger brush type paddy field weeding device includes a mounting rod 1, a power chassis 2 and a plurality of weeding assemblies; the power chassis 2 is fixed with the end of the mounting rod 1. The plurality of weeding assemblies are all mounted on the power chassis 2 and are uniformly distributed along the circumference of the mounting rod 1.

[0028] The weeding assembly includes an elastic finger brush 3 and a row cleaning assembly. The row cleaning assembly includes a rigid finger rod 4-1, a double torsion spring 4-2, a first connecting rod 4-3 and a second connecting rod 4-4. The first connecting rod 4-3 and the second connecting rod 4-4 are spaced apart and mounted on the power chassis 2 along the axis direction of the power chassis 2; one end of the first connecting rod 4-3 and the second connecting rod 4-4 forms a rotary pair with the power chassis 2. The rigid finger rod 4-1 is mounted on the power chassis 2 through the first connecting rod 4-3 and the second connecting rod 4-4. The axis of the rigid finger rod 4-1 is parallel to the axis of the mounting rod 1.

[0029] The double torsion spring 4-2 includes a first torsion spring body, a second torsion spring body and a connecting curved rod connecting the two torsion spring bodies; the first connecting rod 4-3 is rotatably connected with the power chassis 2 through a pin shaft. The first torsion spring body and the second torsion spring body are respectively sleeved on both ends of the pin shaft. The ends of the first torsion spring body and the second torsion spring body away from the connecting curved rod are both abutted against the power chassis 2. The connecting curved rod is abutted against the first connecting rod 4-3, for resetting the first connecting rod 4-3 after rotation.

[0030] AsFigure 1 and 2 As shown, the rigid finger rod 4-1 includes an inner connector and an outer weeding component. The connector is U-shaped and includes a connecting rod and two parallel side rods. The two side rods are fixedly connected to both ends of the connecting rod. The outer end of the first connecting rod 4-3 is positioned between the two side rods of the connector and forms a revolute joint with them. There are two second connecting rods 4-4, which are positioned on opposite sides of the two side rods. The outer ends of the two second connecting rods 4-4 form revolute joints with their corresponding side rods.

[0031] During the rotation of each rigid finger rod 4-1 around the axis of the mounting rod 1, when the weeding component in the rigid finger rod 4-1 encounters harder soil, the rotation angle of the first connecting rod 4-3 and the second connecting rod 4-4 is changed, causing the rigid finger rod 4-1 to rise upwards; this reduces the depth of insertion into the soil and prevents the harder soil from damaging the rigid finger rod 4-1. When the rigid finger rod 4-1 moves away from the area of ​​harder soil, the double torsion spring 4-2 drives the first connecting rod 4-3 to reset. The reset of the first connecting rod 4-3 causes the rigid finger rod 4-1 to descend, allowing the rigid finger rod 4-1 to insert into the soil more deeply.

[0032] The elastic finger brush 3 comprises multiple elastic rods arranged in an array. The inner ends of each elastic rod are fixedly connected to the power chassis 2. The outer ends of the elastic rods pass between two side rods, such that the distance from the outer end of the elastic rod to the axis of the mounting rod 1 is greater than the distance from the position of the rigid finger rod 4-1 furthest from the mounting rod 1 to the axis of the mounting rod 1. The elastic rods are made of nylon. The elastic finger brush 3 is used to remove weeds between two separated rice seedlings. When the outer ends of each elastic finger brush 3, rotating around the mounting rod 1, move into the weed area, the outer ends of the elastic finger brushes impact the weeds, damaging them. When the outer ends of the elastic finger brush 3 impact the rice seedlings, the bending deformation of the elastic finger brush 3 itself prevents damage to the rice seedlings.

[0033] The finger-brush type paddy field weeding device and its weeding method include the following steps:

[0034] Step 1, such as Figure 3 and 4 As shown, the weeding device is placed between two adjacent rows of rice seedlings in the paddy field. The weeding component in the rigid finger rod 4-1 is inserted obliquely into the soil; each row of rice seedlings has multiple rice seedlings spaced apart. The outer end of the elastic finger brush 3 is inserted between two adjacent rice seedlings in the same row.

[0035] Step two, the external driving element drives the whole weeding device to rotate around the axis of the mounting rod 1; at the same time, the weeding device moves along the direction of the rice seedling arrangement; in the process of rotating around the axis of the mounting rod 1, each rigid finger 4-1 agitates the soil between the two rows of rice seedlings, thereby driving the roots of the weeds to float on the water surface; in the process of rotating around the axis of the mounting rod 1, the outer end of each elastic finger brush 3 breaks the weeds between the same row of rice seedlings;

[0036] As shown in Figure 5 , by controlling the relationship between the speed of the whole weeding device moving and the rotating speed of the weeding device itself, the probability of the elastic finger brush 3 hitting the rice seedlings can be reduced; at the same time, since the elastic finger brush 3 can bend and deform, even if the outer end of the elastic finger brush 3 hits the rice seedlings, the bending and deforming of the elastic finger brush 3 itself can avoid damage to the rice seedlings.

Claims

1. A paddy field weeding device of a finger brush type, comprising a mounting rod (1), a power chassis (2) and a plurality of weeding assemblies; characterized in that: The power chassis (2) is fixed to the end of the mounting rod (1); a plurality of weeding assemblies are mounted on the power chassis (2) and are evenly distributed along the circumference of the mounting rod (1); The weeding assembly comprises an elastic finger brush (3) and an inter-row cleaning assembly; the inter-row cleaning assembly comprises a rigid finger rod (4-1), an elastic assembly, a first connecting rod (4-3) and a second connecting rod (4-4); one end of the first connecting rod (4-3) and the second connecting rod (4-4) is respectively rotationally connected to different positions of the power chassis (2); the other end of the first connecting rod (4-3) and the second connecting rod (4-4) is respectively rotationally connected to different positions of the inner end of the rigid finger rod (4-1); the outer end of the rigid finger rod (4-1) is directed away from the mounting rod (1); the elastic assembly is used to provide a restoring elastic force to the first connecting rod (4-3); the distance from the outer end of the elastic finger brush (3) to the axis of the mounting rod (1) is greater than the distance from the position of the rigid finger rod (4-1) farthest away from the mounting rod (1) to the axis of the mounting rod (1); The power chassis (2), the rigid finger rod (4-1), the first connecting rod (4-3) and the second connecting rod (4-4) form a parallelogram mechanism; the axis of the rigid finger rod (4-1) is parallel to the axis of the mounting rod (1); the rigid finger rod (4-1) comprises a connecting piece at the inner end and a weeding piece at the outer end; the connecting piece is in the shape of a U-shaped rod and comprises a connecting rod and two side rods parallel to each other; the elastic finger brush (3) passes between the two side rods; in the same inter-row cleaning assembly, the first connecting rod (4-3) is arranged between the two side rods of the connecting piece; the second connecting rod (4-4) has two rods; the two second connecting rods (4-4) are arranged on opposite sides of the two side rods; the first connecting rod (4-3) is located on the side of the elastic finger brush (3) away from the weeding piece at the outer end of the rigid finger rod (4-1).

2. The weeding device according to claim 1, wherein: The elastic assembly adopts a double torsion spring (4-2) which comprises a first torsion spring body, a second torsion spring body and a connecting curved rod connecting the two torsion spring bodies; the first connecting rod (4-3) is rotationally connected to the power chassis (2) through a pin shaft; the first torsion spring body and the second torsion spring body are respectively sleeved on the two ends of the pin shaft; the connecting curved rod abuts against the first connecting rod (4-3); the end portions of the first torsion spring body and the second torsion spring body away from the connecting curved rod abut against the power chassis (2).

3. The weeding device according to claim 1, wherein: The elastic finger brush (3) is made of nylon material.

4. The weeding device according to claim 1, wherein: The axis of the elastic finger brush (3) is arranged along the radial direction of the mounting rod (1).

5. The weeding device according to claim 1, wherein: The elastic finger brush (3) is composed of a plurality of elastic rods arranged in an array.

6. The weeding method of the weeding device for paddy fields according to claim 1, characterized in that: The method comprises the following steps: Step one, place the weeding device between two adjacent rows of rice seedlings in a paddy field; the weeding piece in the rigid finger rod (4-1) is inserted obliquely into the soil; the outer end of the elastic finger brush (3) is inserted between two adjacent rice seedlings in the same row; Step two, the external driving element drives the whole weeding device around the axis of the mounting rod (1); at the same time, the weeding device travels along the direction of the rice seedling arrangement; in the process of rotating the rigid finger pole (4-1) around the axis of the mounting rod (1), the soil between the two rows of rice seedlings is stirred, the weed roots are driven, and weeding is achieved; in the process of rotating the elastic finger brush (3) around the axis of the mounting rod (1), the outer end of the elastic finger brush (3) destroys the weeds between the same row of rice seedlings.

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