A tea garden furrow weeding machine

Abstract

This invention relates to the field of weeding machines, specifically a tea garden furrow weeding machine; it includes: a rotating shaft; a connecting sleeve rotatably connected to the outer wall of one end of the rotating shaft; a handle; one end of the handle is fixedly connected to the outer wall of the connecting sleeve; the axis of the handle is perpendicular to the axis of the rotating shaft; a motor; the output shaft of the motor is fixedly connected to one end of the rotating shaft; the outer wall of the motor is fixedly connected to the connecting sleeve via a U-shaped rod; a secondary sleeve; the secondary sleeve is fitted onto and connected to the other end of the rotating shaft; a main sleeve; the main sleeve is fitted onto the outer wall of the rotating shaft and positioned close to the connecting sleeve. This invention utilizes a cutting rope that generates cutting force under high-speed rotation, while simultaneously adapting the arch shape formed by the cutting rope to the shape of the tea garden furrow, thereby enabling the weeds in the tea garden furrows to be quickly and thoroughly cut without dead angles, achieving the purpose of thorough and rapid weed cutting in the tea garden furrows. Furthermore, this invention is portable and easy to use.

Description

Technical Field

[0001] This invention relates to the field of weeding machines, specifically a weeding machine for tea garden furrows. Background Technology

[0002] Tea trees are primarily planted using a row planting method with ample spacing between rows, providing an excellent environment for weed growth. If weeds are allowed to grow unchecked in the tea garden without appropriate control measures, they will eventually compete with the tea trees for nutrients, sunlight, and growing space, severely impacting tea tree growth and leading to reduced tea yield and quality. Therefore, it is necessary to remove weeds from the tea garden. Tea garden weeding machines are specially designed for weeding in tea gardens. They can help farmers efficiently remove weeds and maintain the healthy growth of tea trees.

[0003] Tea garden furrows are ditches set up in tea gardens to drain rainwater, irrigate, and maintain soil moisture balance. Because tea garden furrows are long, concave areas on the ground, the cutting heads of existing large weed cutters cannot directly reach into them to cut weeds; forcing them to cut would damage the shape of the furrows. Furthermore, some smaller weed cutter heads are not adapted to the concave shape of the furrows, meaning that even smaller cutting heads cannot effectively cut the weeds within the furrows.

[0004] In view of this, in order to overcome the above-mentioned technical problems, the present invention proposes a tea garden furrow weeding machine, which solves the above-mentioned technical problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a tea garden furrow weeding machine. This invention uses a cutting rope that rotates at high speed to generate cutting force. At the same time, the arch shape formed by the cutting rope is adapted to the shape of the tea garden furrow, so that the weeds in the tea garden furrow are quickly and thoroughly cut without dead angles. This achieves the purpose of fully and quickly cutting the weeds in the tea garden furrow. In addition, this application is also characterized by being portable and easy to use.

[0006] The technical solution adopted by this invention to solve its technical problem is: a tea garden furrow weeding machine according to this invention, comprising:

[0007] A rotating shaft; a connecting sleeve is rotatably connected to the outer wall of one end of the rotating shaft;

[0008] A grip; one end of the grip is fixedly connected to the outer wall of the connecting sleeve; the axis of the grip is perpendicular to the axis of rotation.

[0009] Motor; the output shaft of the motor is fixedly connected to one end of the rotating shaft; the outer wall of the motor is fixedly connected to the connecting sleeve by a U-shaped rod;

[0010] Subsidiary sleeve; the subsidiary sleeve is fitted onto and connected to the other end of the rotating shaft;

[0011] Main sleeve; the main sleeve is fitted onto the outer wall of the rotating shaft and is located close to the connecting sleeve; the main sleeve is located between the secondary sleeve and the connecting sleeve;

[0012] Cutting ropes; there are multiple cutting ropes, which are evenly distributed around the rotating shaft, and the outer wall of the secondary sleeve is connected to the outer wall of the main sleeve by the cutting ropes; the cutting ropes are made of nylon material;

[0013] Controller; the controller is used to control the automatic operation of the weeding machine.

[0014] Preferably, the secondary sleeve is slidably connected to the other end of the rotating shaft; a first slide bar is axially fixed to the outer wall of the other end of the rotating shaft; a first slide groove is provided on the inner wall of the secondary sleeve; the first slide bar is slidably connected to the first slide groove; a first annular groove is provided on the inner wall of the connecting sleeve; an L-shaped hole is provided inside the rotating shaft; one end of the L-shaped hole communicates with the first annular groove, and the other end communicates with the other end face of the rotating shaft; a pull block is slidably connected inside the other end of the L-shaped hole; a pull rope is connected to the outer side of the pull block; the other end of the pull rope extends from the other end of the L-shaped hole and is connected to the end face of the secondary sleeve away from the main sleeve; the pull block has a square cross-section; the other end of the grip is connected to the drive assembly, and a straight hole is provided inside the grip; one end of the straight hole communicates with the first annular groove, and the other end communicates with the drive assembly, which is used to control the fluid volume in the straight hole; the connecting sleeve is rotatably and sealingly connected to the rotating shaft.

[0015] Preferably, the drive assembly includes a drive housing, a drive plate, a drive spring, and a drive rod; the drive housing is connected in series with the grip and is close to the other end of the grip; the other end of the grip and the drive rod are both L-shaped; the drive plate is slidably and sealed inside the drive housing; the side of the drive plate near the connecting sleeve is connected to the inner wall of the drive housing by the drive spring; one end of the drive rod passes through the grip and extends into the drive housing, and is connected to the drive plate.

[0016] Preferably, the maximum distance from the secondary sleeve to the primary sleeve under the control of the drive assembly is greater than the length of the cutting rope; the cutting rope is taut when the operator releases the drive rod.

[0017] Preferably, the main sleeve consists of a shell, a tube, and a cover; the shell is a shell-shaped structure with one end open; the shell is fixedly connected to the rotating shaft; the cover is rotatably connected to the opening of the shell; the cover is rotatably connected to the rotating shaft; the tube is located between the bottom of the shell and the cover; the tube is sleeved on the outer wall of the rotating shaft and fixedly connected to the cover; the outer wall of the shell has evenly spaced rope-retracting holes; one end of the cutting rope is connected to the outer wall of the secondary sleeve, and the other end passes through the rope-retracting hole and is fixedly connected to the outer wall of the tube;

[0018] The port where the housing contacts the cover is provided with a sliding groove; the other end of the sliding groove is connected to the outer wall of the housing; the position where the cover contacts the housing is provided with locking grooves evenly; the locking grooves correspond to the position of the sliding grooves after the cover is moved.

[0019] A locking block is slidably connected within the actuating groove; the locking block is L-shaped; one end of the locking block can be inserted into the locking groove after sliding, and the other end of the locking block extends to the outside of the housing; the locking block and the groove wall of the actuating groove away from the housing are connected by a No. 1 spring; in order to improve the connection strength between the housing and the housing, multiple actuating grooves can be provided, and the positions of the multiple actuating grooves correspond to the positions of the locking grooves. In order to make it easier to move the locking block, the other ends of the multiple locking blocks are connected by an arc-shaped strip. By moving the arc-shaped strip, the locking block is moved away from the housing, thereby unlocking the housing and the housing.

[0020] Preferably, an auxiliary sleeve is rotatably connected to the outer wall of one end of the grip; the auxiliary sleeve is long and tubular; a first tooth is evenly arranged on the outer wall of the end of the auxiliary sleeve near the connecting sleeve; a second tooth is arranged on the side of the sleeve cover away from the sleeve shell; the first tooth and the second tooth mesh with each other to form a gear transmission.

[0021] Preferably, the other end of the auxiliary sleeve extends to the outside of the cutting rope; a blocking rope is fixed to the outer wall of the other end of the auxiliary sleeve; the end of the blocking rope extends to the secondary sleeve after rotation; the number of blocking ropes is greater than the number of cutting ropes.

[0022] Preferably, the outer wall of the sleeve is sealed with an annular plate; the annular plate is slidably and sealingly connected to the inner wall of the sleeve, and the edge of the annular plate is provided with a second sliding groove. A second sliding strip is fixedly connected to the inner wall of the sleeve along the axial direction; the second sliding strip is slidably and sealingly connected to the second sliding groove; a driven member is fixedly connected to the side of the annular plate near the sleeve cover; a driving member is fixedly connected to the side of the sleeve cover near the annular plate; both the driving member and the driven member are hemispherical and contact and press against each other during rotation; both the annular plate and the sleeve cover are inlaid with magnetic material and attract each other under magnetic force; a one-way air outlet is provided through the end face of the annular plate; a one-way air inlet is provided through the end face of the sleeve cover; the sleeve cover is rotatably and sealingly connected to one end opening of the sleeve cover; the outer diameter of the cutting rope is adapted to the inner diameter of the rope take-up hole.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. This invention uses a cutting rope that rotates at high speed to generate cutting force. The arch shape formed by the cutting rope is adapted to the shape of the tea garden furrows, so that the weeds in the tea garden furrows can be quickly and thoroughly cut without dead angles. This achieves the purpose of fully and quickly cutting the weeds in the tea garden furrows. In addition, this application is also convenient to carry and use.

[0025] 2. This invention changes the force of the gripping drive rod and the other end of the handle by changing the shape of the groove through the tea garden furrow, thereby changing the distance between the secondary sleeve and the main sleeve, and thus realizing the shape adjustment of the cutting rope. This allows the high-speed rotating cutting rope to be applicable to tea garden furrows of different shapes and to cut weeds in tea garden furrows of different shapes.

[0026] 3. In this invention, when the other end of the cutting rope is unwound along with the sleeve, the gas discharged from the rope take-up hole can move the unwound cutting rope toward the rope take-up hole, so that the other end of the cutting rope moves out of the sleeve by itself under the action of airflow. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a perspective view of the invention from another angle;

[0030] Figure 3 This is a three-dimensional sectional view of the present invention;

[0031] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0033] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0034] Figure 7 This is a three-dimensional sectional view of the driving component in this invention.

[0035] In the diagram: 1. Rotating shaft; 11. L-shaped hole; 12. Pull block; 13. Pull rope; 2. Connecting sleeve; 21. Annular groove 1; 3. Grip rod; 31. Straight hole; 4. Motor; 41. U-shaped rod; 5. Secondary sleeve; 6. Main sleeve; 61. Sleeve housing; 611. Rope winding hole; 612. Actuating groove; 613. Locking block; 614. Spring 1; 62. Sleeve tube; 63. Cover; 631. Locking groove; 632. Tooth 2; 633. Driving component; 634. One-way air inlet; 64. Annular plate; 641. Driven component; 642. One-way air outlet; 7. Cutting rope; 8. Drive assembly; 81. Drive housing; 82. Drive plate; 83. Drive spring; 84. Drive rod; 9. Auxiliary sleeve; 91. Tooth 1; 92. Blocking rope. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figures 1 to 7 As shown, the present invention is detailed in the following embodiments:

[0038] Example 1:

[0039] A tea garden furrow weeding machine includes:

[0040] Rotating shaft 1; a connecting sleeve 2 is rotatably connected to the outer wall of one end of the rotating shaft 1;

[0041] Grip bar 3; one end of the grip bar 3 is fixedly connected to the outer wall of the connecting sleeve 2; the axis of the grip bar 3 is perpendicular to the axis of the rotating shaft 1;

[0042] Motor 4; the output shaft of motor 4 is fixedly connected to one end of the rotating shaft 1; the outer wall of motor 4 is fixedly connected to connecting sleeve 2 through U-shaped rod 41;

[0043] Subsidiary sleeve 5; the subsidiary sleeve 5 is fitted onto and connected to the other end of the rotating shaft 1;

[0044] Main sleeve 6; the main sleeve 6 is sleeved on the outer wall of the rotating shaft 1 and is located close to the connecting sleeve 2; the main sleeve 6 is located between the secondary sleeve 5 and the connecting sleeve 2;

[0045] Cutting rope 7; there are multiple cutting ropes 7, which are evenly distributed around the rotating shaft 1, and the outer wall of the secondary sleeve 5 is connected to the outer wall of the main sleeve 6 through the cutting ropes 7; the cutting ropes 7 are made of nylon material;

[0046] Controller; the controller is used to control the automatic operation of the weeding machine;

[0047] During operation, because the furrows in tea gardens are long and concave in shape, the cutting heads of existing large weeding machines cannot directly reach into the furrows to cut weeds. Forcing the cutting would damage the shape of the furrows. On the other hand, some smaller weeding machine cutting heads cannot adapt to the concave shape of the furrows, so even some smaller cutting heads cannot achieve the purpose of fully cutting the weeds in the furrows.

[0048] Therefore, after checking that the cutting rope 7 is securely connected to the main sleeve 6 and the auxiliary sleeve 5, and that the weeder is functioning properly, the operator will charge the weeder using electrical energy, solar energy, dye, etc. The operator will then hold the other end of the handle 3 and drive the rotating shaft 1 into the tea garden. Once the rotating shaft 1 reaches the tea garden furrow, it will be laid horizontally so that its central axis is perpendicular to the length of the furrow. The controller will then be activated to drive the motor 4 to rotate. The rotating motor 4 will then drive the rotating shaft 1 to rotate, which in turn will cause the main sleeve 6 and the auxiliary sleeve 5 to rotate synchronously. Because the cutting... One end of the cutting rope 7 is connected to the auxiliary sleeve 5, and the other end is connected to the main sleeve 6. Therefore, the rotation of the main sleeve 6 and the auxiliary sleeve 5 will drive the cutting rope 7 to rotate synchronously. There are multiple cutting ropes 7. As the main sleeve 6 and the auxiliary sleeve 5 rotate, the cutting rope 7 will generate centrifugal force, causing the cutting rope 7 to form an arch shape under centrifugal action. The cross-section of tea garden furrows is generally arched, so the rotated cutting rope 7 can adapt to the shape of the tea garden furrows. The cutting rope 7 will generate cutting force under high-speed rotation, thereby cutting the weeds in the tea garden furrows under the high-speed rotation of the cutting rope 7. The rotating shaft 1 and the connecting sleeve 2 rotate. The connecting sleeve 2 is connected to the handle 3, so the handle 3 can control the rotating shaft 1 to move along the length of the tea garden furrow. This allows the high-speed rotating, arched cutting rope 7 to adapt to the shape of the tea garden furrow during weed cutting, enabling workers to cut all the weeds in the furrow in one pass. Compared to existing cutting heads, this application has higher cutting efficiency and can achieve thorough cutting. In addition, this application is portable and convenient, allowing for easy cutting between tea trees in the tea garden. The passageways are narrow, sometimes only wide enough for one person to pass through. In such narrow spaces, some large weed cutters cannot be used and therefore cannot enter the tea garden to cut the weeds in the furrows. However, the compact design of this application allows workers to carry the weed cutter around the tea garden, making it more flexible to use. In even narrower spaces, workers can control the rotating shaft 1 to rotate with the handle 3, so that the rotating shaft 1 and the handle 3 are in a vertical plane, which greatly saves space for the weed cutter and allows this application to pass through even narrower spaces.

[0049] This invention utilizes the cutting rope 7 to generate cutting force under high-speed rotation. Simultaneously, the arch shape formed by the cutting rope 7 is adapted to the shape of the tea garden furrows, thereby enabling the weeds in the tea garden furrows to be quickly and thoroughly cut without dead angles under the cutting rope 7. This achieves the purpose of fully and quickly cutting the weeds in the tea garden furrows. In addition, this application is also characterized by being easy to carry and convenient to use.

[0050] Example 2 differs from Example 1 in that:

[0051] The secondary sleeve 5 is slidably connected to the other end of the rotating shaft 1; a first slide bar is axially fixed to the outer wall of the other end of the rotating shaft 1; a first slide groove is provided on the inner wall of the secondary sleeve 5; the first slide bar is slidably connected to the first slide groove; a first annular groove 21 is provided on the inner wall of the connecting sleeve 2; an L-shaped hole 11 is provided inside the rotating shaft 1; one end of the L-shaped hole 11 communicates with the first annular groove 21, and the other end communicates with the other end face of the rotating shaft 1; a pull block 1 is slidably connected inside the other end of the L-shaped hole 11. 2; The outer side of the pull block 12 is connected to the pull rope 13; the other end of the pull rope 13 extends from the other end of the L-shaped hole 11 and is connected to the end face of the auxiliary sleeve 5 away from the main sleeve 6; the pull block 12 has a square cross-section; the other end of the grip 3 is connected to the drive assembly 8, and the grip 3 has a straight hole 31; one end of the straight hole 31 is connected to the first annular groove 21, and the other end is connected to the drive assembly 8, which is used to control the fluid volume in the straight hole 31; the connecting sleeve 2 is rotatably and sealingly connected to the rotating shaft 1.

[0052] In this embodiment, the drive assembly 8 includes a drive housing 81, a drive plate 82, a drive spring 83, and a drive rod 84. The drive housing 81 is connected in series with the grip 3 and is close to the other end of the grip 3. The other end of the grip 3 and the drive rod 84 are both L-shaped. The drive plate 82 is slidably and sealingly connected inside the drive housing 81. The side of the drive plate 82 near the connecting sleeve 2 is connected to the inner wall of the drive housing 81 by the drive spring 83. One end of the drive rod 84 passes through the grip 3 and the other end extends into the drive housing 81 and is connected to the drive plate 82.

[0053] In this embodiment, the maximum distance from the secondary sleeve 5 to the main sleeve 6 under the control of the drive component 8 is greater than the length of the cutting rope 7; the cutting rope 7 is taut when the operator releases the drive rod 84.

[0054] During operation, the drive plate 82 divides the space of the drive housing 81 into a near cavity and a far cavity. Because the depth and shape of the tea garden furrows vary, the shape formed by a single high-speed rotating cutting rope 7 cannot match the diverse shapes of the furrows. Therefore, after observing the shape of the tea garden furrows, the operator changes the pressure between the other end of the gripping rod 3 and the drive rod 84, thereby changing the relative position between the drive rod 84 and the other end of the gripping rod 3. This causes the drive plate 82 to change position with the drive rod 84. As the drive plate 82 approaches the connecting sleeve 2 within the drive housing 81, the medium pressure in the near cavity increases under the pressure of the drive plate 82. After being compressed, the medium enters the first annular groove 21 along the straight hole 31, and then enters the L-shaped hole 11 along the first annular groove 21, increasing the medium in the L-shaped hole 11. The medium in the L-shaped hole 11 will squeeze the pull block 12 away from the motor 4, causing one end of the pull rope 13 to loosen. The rotating cutting rope 7 will have a centrifugal force. Under high-speed rotation, the cutting rope 7 will pull the secondary sleeve 5 closer to the main sleeve 6, so that the pull rope 13 will be tightened after the secondary sleeve 5 approaches the main sleeve 6. In order to increase the speed at which the secondary sleeve 5 approaches the main sleeve 6, corresponding magnets can be set on the surfaces of the secondary sleeve 5 and the main sleeve 6 that are close to each other. Through magnetic force, a magnetic attraction force is formed between the secondary sleeve 5 and the main sleeve 6. 5. As the cutting rope 7 approaches the main sleeve 6, its shape changes due to high-speed rotation. Compared to the original shape, it becomes more suitable for narrower and deeper tea garden furrows. For wider and shallower tea garden furrows, the operator reduces the pressure between the other end of the gripping rod 3 and the drive rod 84. The drive spring 83 then moves the drive plate 82 away from the connecting sleeve 2, increasing the space within the near sleeve cavity and creating negative pressure. Under this negative pressure, the medium in the L-shaped hole 11 enters the near sleeve cavity along the first annular groove 21 and the straight hole 31. The pull block 12 moves closer to the motor 4 under this negative pressure, pulling the pull rope 13 towards the L-shaped hole 11. The pull rope 13 pulls the secondary sleeve 5 away from the main sleeve 6, increasing the distance between them. This causes the shape of the high-speed rotating cutting rope 7 to change, making it suitable for wider and shallower tea garden furrows. In this embodiment, after the drive rod 84 is completely released, the secondary sleeve 5 will move away from the main sleeve 6. The maximum distance of the secondary sleeve 5 from the main sleeve 6 is greater than the length of the cutting rope 7. Thus, the cutting rope 7 will be taut under the pull of the secondary sleeve 5, avoiding tangling between the cutting ropes and preparing for the next cut, ensuring stable cutting in the next operation. In this embodiment, the outer sleeve cavity is connected to the outside gas, allowing the drive plate 82 to move smoothly within the drive housing 81.

[0055] This embodiment can change the force of the gripping drive rod 84 and the other end of the grip rod 3 by changing the shape of the groove through the tea garden furrow, thereby changing the distance between the secondary sleeve 5 and the main sleeve 6, and thus realizing the shape adjustment of the cutting rope 7. This allows the high-speed rotating cutting rope 7 to be suitable for tea garden furrows of different shapes and to cut weeds in tea garden furrows of different shapes.

[0056] Example 3 differs from Example 2 in that:

[0057] The main sleeve 6 is composed of a shell 61, a sleeve 62, and a cover 63; the shell 61 is a shell-shaped structure with one end open; the shell 61 is fixedly connected to the rotating shaft 1; the cover 63 is rotatably connected to the opening of the shell 61; the cover 63 is rotatably connected to the rotating shaft 1; the sleeve 62 is located between the bottom of the shell 61 and the cover 63; the sleeve 62 is sleeved on the outer wall of the rotating shaft 1 and fixedly connected to the cover 63; the outer wall of the shell 61 is evenly provided with rope-retrieving holes 611; one end of the cutting rope 7 is connected to the outer wall of the auxiliary sleeve 5, and the other end passes through the rope-retrieving hole 611 and is fixedly connected to the outer wall of the sleeve 62;

[0058] The port where the housing 61 contacts the cover 63 is provided with a moving groove 612; the other end of the moving groove 612 is connected to the outer wall of the housing 61; the position where the cover 63 contacts the housing 61 is provided with slots 631 evenly; the slots 631 correspond to the position of the moving groove 612 after the cover 63 moves.

[0059] A locking block 613 is slidably connected within the actuating groove 612; the locking block 613 is L-shaped; one end of the locking block 613 can be inserted into the locking slot 631 after sliding, and the other end of the locking block 613 extends to the outside of the housing 61; the locking block 613 and the groove wall of the actuating groove 612 away from the housing 63 are connected by a spring 614; in order to improve the connection strength between the housing 63 and the housing 61, multiple actuating grooves 612 can be provided, and the positions of the multiple actuating grooves 612 correspond to the positions of the locking slots 631. In order to make it easier to actuate the locking block 613, the other ends of the multiple locking blocks 613 are connected by an arc-shaped strip. By actuating the arc-shaped strip, the locking block 613 is moved away from the housing 63, thereby unlocking the housing 63 and the housing 61.

[0060] In this embodiment, an auxiliary sleeve 9 is rotatably connected to the outer wall of one end of the grip 3; the auxiliary sleeve 9 is a long tube; a first tooth 91 is evenly arranged on the outer wall of the auxiliary sleeve 9 near the connecting sleeve 2; a second tooth 632 is arranged on the side of the sleeve cover 63 away from the sleeve shell 61; the first tooth 91 and the second tooth 632 mesh with each other to form a gear transmission.

[0061] In this embodiment, the other end of the auxiliary sleeve 9 extends to the outside of the cutting rope 7; the outer wall of the other end of the auxiliary sleeve 9 is fixedly connected to the blocking rope 92; the end of the blocking rope 92 extends to the sub-sleeve 5 after rotation; the number of blocking ropes 92 is greater than the number of cutting ropes 7.

[0062] In this embodiment, the outer wall of the sleeve 62 is sealed with an annular plate 64; the annular plate 64 is slidably and sealingly connected to the inner wall of the casing 61, and the edge of the annular plate 64 is provided with a second sliding groove. A second sliding strip is fixedly connected to the inner wall of the casing 61 along the axial direction; the second sliding strip is slidably and sealingly connected to the second sliding groove; a driven member 641 is fixedly connected to the side of the annular plate 64 near the sleeve cover 63; a driving member 633 is fixedly connected to the side of the sleeve cover 63 near the annular plate 64; the main... Both the moving member 633 and the driven member 641 are hemispherical and come into contact with each other under rotation; the annular plate 64 and the cover 63 are both inlaid with magnetic material and attract each other under magnetic force; a one-way air outlet 642 is provided through the end face of the annular plate 64; a one-way air inlet 634 is provided through the end face of the cover 63; the cover 63 is rotatably and sealingly connected to one end opening of the shell 61; the outer diameter of the cutting rope 7 is adapted to the inner diameter of the rope winding hole 611;

[0063] During operation, when it is necessary to adjust the length of the cutting rope 7 between the auxiliary sleeve 5 and the main sleeve 6, simply stop the motor 4 from rotating and move the other end of the locking block 613 away from the motor 4. The other end of the locking block 613 will slide within the actuation groove 612 and press the first spring 614. One end of the locking block 613 will then be pulled out from the corresponding locking groove 631 and into the actuation groove 612, thus unlocking the sleeve cover 63 from the sleeve shell 61. Then, rotate the auxiliary sleeve 9. Because the auxiliary sleeve 9 has a smaller diameter, the operator can hold the other end of the auxiliary sleeve 9 by hand. The other end of the auxiliary sleeve 9 is fixedly connected to the blocking rope 92, thus increasing the operator's grip on the other end of the auxiliary sleeve 9. Friction causes the auxiliary sleeve 9 to rotate under the operator's hand. This rotation drives the first tooth 91 to rotate. Since the first tooth 91 meshes with the second tooth 632, the rotation of the auxiliary sleeve 9 drives the sleeve cover 63 to rotate. Different rotation directions of the auxiliary sleeve 9 will cause the sleeve cover 63 to rotate in different directions. During the rotation of the sleeve cover 63, the sleeve tube 62 will rotate. The other end of the cutting rope 7 passes through the rope take-up hole 611 and is fixed to the outer wall of the sleeve tube 62. Therefore, the rotation of the sleeve tube 62 can wind or unwind the other end of the cutting rope 7. During the rotation of the sleeve cover 63, the hemispherical driving member 633 will move around the rotating shaft 1. The driving member 63 moves around the sleeve cover 633. 3. The rotating actuator 641 is compressed, causing the annular plate 64 to move away from the cover 63 after being compressed. The annular plate 64 divides the space inside the cover 61 into a near-machine cavity and a far-machine cavity. The near-machine cavity is the cavity closer to the motor 4, and the far-machine cavity is the cavity farther from the motor 4. After the annular plate 64 moves away from the cover 63, the space in the near-machine cavity increases, creating a negative pressure. External gas will enter the near-machine cavity through the one-way air inlet 634. As the actuator 633 and the actuator 641 are misaligned, the annular plate 64 moves closer to the cover 63 under the action of magnetic force, making the space in the near-machine cavity smaller. The gas in the near-machine cavity, after being compressed, will enter through the one-way air outlet 642. In order to make the annular plate 64 move more frequently, the number of driven members 641 can be increased. The amount of gas in the remote machine cavity increases after the gas is discharged from the one-way vent 642. This increases the gas volume in the remote machine cavity and the air pressure in the remote machine cavity. The gas in the remote machine cavity will be discharged along the rope take-up hole 611. The rope take-up hole 611 generally has two functions. The first function is that when the other end of the cutting rope 7 is wound up with the sleeve 62, the gas discharged from the rope take-up hole 611 can impact the impurities on the surface of the cutting rope 7, so as to prevent impurities from getting stuck in the opening of the rope take-up hole 611 and blocking it, and ensuring that the cutting rope 7 runs smoothly in the rope take-up hole 611.The second function is that, as the sleeve 62 unwinds, the gas discharged from the rope take-up hole 611 can move the other end of the unwinding cutting rope 7 toward the rope take-up hole 611, so that the other end of the cutting rope 7 is moved out of the sleeve 61 under the action of airflow. In this way, the length between the secondary sleeve 5 and the main sleeve 6 can be changed by rotating the auxiliary sleeve 9. After the cutting rope 7 between the secondary sleeve 5 and the main sleeve 6 is adjusted to a suitable distance, the operator will release the other end of the locking block 613. The first spring 614 will push the locking block 613 against the end face of the sleeve cover 63. After the auxiliary sleeve 9 rotates back and forth slightly, the actuating groove 612 and the locking groove 631 correspond. In this way, the first spring 614 will drive one end of the locking block 613 to insert into the corresponding locking groove 631, realizing the locking process between the sleeve cover 63 and the sleeve 61.

[0064] During the process of workers using the handle 3 to drive the high-speed rotating cutting rope 7 to cut weeds in the furrows of the tea garden, the rotating shaft 1 will rotate with the motor 4. The rotation of the rotating shaft 1 will drive the casing 61 and the cover 63 to rotate. During the rotation of the cover 63, the auxiliary sleeve 9 will rotate through the engagement of the second tooth 632 and the first tooth 91. The rotation of the auxiliary sleeve 9 will drive the blocking rope 92 to rotate. The blocking rope 92 will form a barrier under rotation, thereby intercepting impurities on the side of the cutting rope 7 closest to the worker's hand handle 3, and preventing the weeds flying during the cutting process from causing secondary injury to the worker. In this embodiment, the number of blocking ropes 92 is greater than the number of cutting ropes 7, so even when the cutting rope 7 is cutting at a low speed, the blocking ropes 92 can still maintain a certain blocking effect.

[0065] In this embodiment, tooth 91 is close to the connecting sleeve 2, so that during the meshing and transmission of tooth 91 and tooth 632, it can crush and shred the weeds wrapped around the connection position between the output shaft of motor 4 and the rotating shaft 1. Specifically, tooth 91 pushes the weeds on the end face of the output shaft of motor 4 toward tooth 632, and tooth 632 pushes the weeds toward the meshing position of tooth 91 under rotation. In this way, the weeds at the connection position between the output shaft of motor 4 and the rotating shaft 1 are crushed by the meshing of tooth 91 and tooth 632, thereby preventing the wrapped weeds from affecting the rotation of the rotating shaft 1 and ensuring the stable operation of the weed cutter.

[0066] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tea garden furrow weeding machine, characterized in that, include: A rotating shaft (1); a connecting sleeve (2) is rotatably connected to the outer wall of one end of the rotating shaft (1); Grip (3); one end of the grip (3) is fixedly connected to the outer wall of the connecting sleeve (2); the axis of the grip (3) is perpendicular to the axis of the rotating shaft (1); Motor (4); the output shaft of the motor (4) is fixedly connected to one end of the rotating shaft (1); the outer wall of the motor (4) is fixedly connected to the connecting sleeve (2) through a U-shaped rod (41); Subsidiary sleeve (5); the subsidiary sleeve (5) is fitted onto and connected to the other end of the rotating shaft (1); Main sleeve (6); the main sleeve (6) is sleeved on the outer wall of the rotating shaft (1) and is located close to the connecting sleeve (2); the main sleeve (6) is located between the secondary sleeve (5) and the connecting sleeve (2); Cutting rope (7); there are multiple cutting ropes (7), which are evenly distributed around the rotating shaft (1), and the outer wall of the sub-sleeve (5) is connected to the outer wall of the main sleeve (6) through the cutting ropes (7); Controller; the controller is used to control the automatic operation of the weeding machine; The sub-sleeve (5) is slidably connected to the other end of the rotating shaft (1); the inner wall of the connecting sleeve (2) is provided with a first annular groove (21); the rotating shaft (1) is provided with an L-shaped hole (11); one end of the L-shaped hole (11) is connected to the first annular groove (21), and the other end is connected to the other end face of the rotating shaft (1); a pull block (12) is slidably connected to the other end of the L-shaped hole (11); a pull rope (13) is connected to the outer side of the pull block (12); the other end of the pull rope (13) extends from the other end of the L-shaped hole (11) and is connected to the end face of the sub-sleeve (5) away from the main sleeve (6); the other end of the grip (3) is connected to the drive assembly (8), and a straight hole (31) is provided in the grip (3); one end of the straight hole (31) is connected to the first annular groove (21), and the other end is connected to the drive assembly (8), which is used to control the fluid volume in the straight hole (31); The drive assembly (8) includes a drive housing (81), a drive plate (82), a drive spring (83), and a drive rod (84); the drive housing (81) is connected in series with the grip (3) and close to the other end of the grip (3); the other end of the grip (3) is L-shaped like the drive rod (84); the drive plate (82) is slidably and sealed inside the drive housing (81); the side of the drive plate (82) close to the connecting sleeve (2) is connected to the inner wall of the drive housing (81) by the drive spring (83); one end of the drive rod (84) passes through the grip (3) and the other end extends into the drive housing (81) and is connected to the drive plate (82).

2. The tea garden furrow weeding machine according to claim 1, characterized in that: The maximum distance from the secondary sleeve (5) to the main sleeve (6) under the control of the drive assembly (8) is greater than the length of the cutting rope (7); the cutting rope (7) is taut when the operator releases the drive rod (84).

3. The tea garden furrow weeding machine according to claim 1, characterized in that: The main sleeve (6) is composed of a shell (61), a sleeve (62), and a cover (63); the shell (61) is a shell-shaped structure with one end open; the shell (61) is fixedly connected to the rotating shaft (1); the cover (63) is rotatably connected to the opening of the shell (61); the cover (63) is rotatably connected to the rotating shaft (1); the sleeve (62) is located between the bottom of the shell (61) and the cover (63); the sleeve (62) is fitted on the outer wall of the rotating shaft (1) and fixedly connected to the cover (63); the outer wall of the shell (61) is evenly provided with rope-retrieving holes (611); one end of the cutting rope (7) is connected to the outer wall of the auxiliary sleeve (5), and the other end passes through the rope-retrieving hole (611) and is fixedly connected to the outer wall of the sleeve (62); The port where the housing (61) contacts the cover (63) is provided with a sliding groove (612); the other end of the sliding groove (612) is connected to the outer wall of the housing (61); the position where the cover (63) contacts the housing (61) is provided with slots (631); the slots (631) correspond to the position of the sliding groove (612) after the cover (63) moves; A locking block (613) is slidably connected within the actuating groove (612); the locking block (613) is L-shaped; one end of the locking block (613) can be inserted into the locking slot (631) after sliding, and the other end of the locking block (613) extends to the outside of the sleeve (61); the locking block (613) and the groove wall of the actuating groove (612) away from the sleeve cover (63) are connected by a spring (614).

4. A tea garden furrow weeding machine according to claim 3, characterized in that: The outer wall of one end of the grip (3) is rotatably connected to an auxiliary sleeve (9); the auxiliary sleeve (9) is a long tube; the outer wall of the auxiliary sleeve (9) near the connecting sleeve (2) is uniformly provided with a first tooth (91); the side of the sleeve cover (63) away from the sleeve shell (61) is provided with a second tooth (632); the first tooth (91) and the second tooth (632) mesh with each other to form a gear transmission.

5. A tea garden furrow weeding machine according to claim 4, characterized in that: The other end of the auxiliary sleeve (9) extends to the outside of the cutting rope (7); the outer wall of the other end of the auxiliary sleeve (9) is fixedly connected to the blocking rope (92); the end of the blocking rope (92) extends to the sub-sleeve (5) after rotation; the number of blocking ropes (92) is greater than the number of cutting ropes (7).

6. A tea garden furrow weeding machine according to claim 3, characterized in that: The outer wall of the sleeve (62) is sealed with an annular plate (64); the annular plate (64) is slidably and sealed to the inner wall of the casing (61); the side of the annular plate (64) near the cover (63) is fixedly connected to a driven member (641); the side of the cover (63) near the annular plate (64) is fixedly connected to an active member (633); the active member (633) and the driven member (641) are both hemispherical and come into contact and squeeze each other under rotation; the annular plate (64) and the cover (63) are both inlaid with magnetic material and attract each other under magnetic force; a one-way air outlet (642) is provided through the end face of the annular plate (64); a one-way air inlet (634) is provided through the end face of the cover (63); the cover (63) is rotatably and sealed to one end opening of the casing (61); the outer diameter of the cutting rope (7) is adapted to the inner diameter of the rope take-up hole (611).

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