Lithium battery grass trimmer

Abstract

This utility model relates to the field of agricultural machinery technology, and in particular to a lithium-ion battery-powered weed puller, comprising a power supply device, a connecting sleeve, and a gripping device. The gripping device includes a drive device and a clamping claw. The drive device and the power supply device are electrically connected. The drive device includes a transmission gear, and a mounting base is connected to the drive device. A first screw and a second screw are mounted on the mounting base. The clamping claw includes a first gripper and a second gripper. The first gripper is threadedly connected to the first screw. The second screw includes a cylindrical section and a protruding section. A transmission component is rotatably connected to the cylindrical section. The transmission component and the second gripper are fixedly connected. The transmission component has a toothed surface, and the transmission gear meshes with the toothed surface. A nut is threadedly connected to the protruding section, and a toothed protrusion is provided on the outer side of the nut. A limiting gear is connected to the first screw, and the head of the first screw presses the limiting gear against the mounting base. The toothed protrusion meshes with the limiting gear. This utility model solves the problem that traditional weed pullers are not labor-saving enough.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a lithium-ion battery-powered weeding machine. Background Technology

[0002] Currently, there are two main methods for removing weeds: manual weeding and chemical spraying. Using a weeding machine can effectively reduce the labor intensity of manual weeding and improve the weeding efficiency of users.

[0003] However, most weed pullers on the market are manual. Users insert the head of the weed puller into the soil around the roots of the weeds, then step on the head of the weed puller with their feet and use their hands to pull the weeds out of the soil by the roots. This requires a lot of physical strength from the user and is not conducive to continuous weeding. There is an urgent need in the market for a weed puller that saves physical strength. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a lithium-ion battery-powered weed puller, which solves the issue that traditional weed pullers are not labor-saving enough.

[0005] The technical solution adopted by this utility model is as follows: a lithium-ion battery-powered weeding machine, comprising a power supply device, a connecting sleeve, and a gripping device. The connecting sleeve connects the power supply device and the gripping device, which are electrically connected. The gripping device includes a housing, a drive unit, and gripping claws. The drive unit is located inside the housing, and the housing has a clearance opening for the gripping claws to extend. The drive unit is electrically connected to the power supply device. The drive unit includes a transmission gear, and a mounting base is connected to the drive unit. A first screw and a second screw are provided on the mounting base. The first screw and the second screw are respectively... Do not pass through the mounting base. The clamping claw includes a first clamping claw and a second clamping claw. The first clamping claw is provided with a connecting hole. The first screw is threadedly connected to the connecting hole. The second screw includes a cylindrical section and a protruding section. A transmission component is rotatably connected to the cylindrical section. The transmission component is fixedly connected to the second clamping claw. The transmission component is provided with a toothed surface. The transmission gear meshes with the toothed surface. A nut is threadedly connected to the protruding section. The outer side of the nut is provided with a toothed protrusion. A limit gear is connected to the first screw. The head of the first screw presses the limit gear against the mounting base. The toothed protrusion meshes with the limit gear.

[0006] With the above technical solution, the user inserts the head of the gripper into the soil at the root of the weed, then starts the power supply device to provide power to the drive device. The drive device starts running and generates driving force, which drives the transmission gear to rotate. The transmission gear meshes with the tooth surface, causing the transmission component on the second screw to rotate along with the rotation of the transmission gear. The transmission component and the second gripper are fixedly connected. The rotating transmission component drives the second gripper to move, allowing the second gripper and the first gripper to grip the root of the weed. The user can apply an upward force to the weed puller to pull the weed out of the soil by the roots. The user only needs to insert the gripper into the root of the weed and then start the weed puller to achieve the gripping of the weed root. There is no need to step on the head of the weed puller to tighten the gripper, which effectively saves the user's physical strength and makes weeding more labor-saving and faster.

[0007] Furthermore, the second screw also includes a protruding head and a cross-sectional section, the two ends of which are respectively connected to the cylindrical section and the protruding section. The cylindrical section is connected to the protruding head, and the mounting base is provided with a shaped hole, which is adapted to the cross-sectional section.

[0008] Through the above technical solution, the cross-section on the second screw and the irregular hole on the mounting base cooperate with each other to make the connection of the second screw on the mounting base very stable, avoiding the situation where the second screw rotates out of the mounting base when it is subjected to vibration or shaking.

[0009] Furthermore, the first gripper and the second gripper are located on the same side of the mounting base.

[0010] With the above technical solution, the first and second grippers are located on the same side of the mounting base, making the overall structure of the gripper very compact, greatly reducing the overall size of the gripping device, and making it more convenient for users to operate.

[0011] Furthermore, the transmission component includes a sector-shaped portion and an extension portion, the extension portion being rotatably connected to the cylindrical section, the extension portion being fixedly connected to the second gripper, and the toothed portion being located on the side of the sector-shaped portion, the toothed portion being close to the edge of the sector-shaped portion.

[0012] With the above technical solution, the tooth surface is located on the side of the fan-shaped part and close to the edge of the fan-shaped part, so that the transmission gear only needs to rotate a small angle to drive the transmission component to rotate, thereby allowing the transmission component to drive the second gripper to move and realize the gripping function of the gripper, making the weeding machine more sensitive to use and effectively improving the efficiency of weeding.

[0013] Furthermore, the tips of the first gripper and the tips of the second gripper are positioned facing each other.

[0014] Through the above technical solution, the tips of the first and second grippers, which are set in opposite directions, make the grippers bear a very uniform force when pulling out weeds, and the weeder works more smoothly during manual weeding operations. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0019] Figure 4 This is the second partial structural schematic diagram of the present utility model;

[0020] Figure 5 This is the third partial structural schematic diagram of this utility model;

[0021] Figure 6 This is a schematic diagram of the transmission component structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the second screw structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the nut structure of this utility model;

[0024] The utility model reference information is as follows:

[0025] 1. Power supply device; 2. Connecting sleeve; 3. Gripping device; 4. Housing; 5. Drive device; 6. Gripping claw; 601. First gripper; 602. Second gripper; 7. Clearance opening; 8. Transmission gear; 9. Mounting base; 10. First screw; 11. Second screw; 12. Connecting hole; 13. Cylindrical section; 14. Protruding section; 15. Protrusion; 16. Cross-sectional section; 17. Transmission component; 18. Toothed surface; 19. Nut; 20. Toothed protrusion; 21. Limiting gear; 22. Irregular hole; 23. Fan-shaped part; 24. Extension part;

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] See Figures 1 to 8As shown, a lithium-ion battery-powered weeding machine includes a power supply device 1, a connecting sleeve 2, and a gripping device 3. The connecting sleeve 2 connects the power supply device 1 and the gripping device 3, which are electrically connected. The gripping device 3 includes a housing 4, a drive unit 5, and gripping claws 6. The drive unit 5 is located inside the housing 4, and the housing 4 has a clearance opening 7 for the gripping claws 6 to extend out. The drive unit 5 is electrically connected to the power supply device 1 and includes a transmission gear 8. A mounting base 9 is connected to the drive unit 5, and a first screw 10 and a second screw 11 are provided on the mounting base 9. The first screw 10 and the second screw 11 pass through the mounting base 9 respectively. The gripping claws 6 include a first clamp... The first gripper 601 has a connecting hole 12, and a first screw 10 is threadedly connected to the connecting hole 12. The second screw 11 includes a cylindrical section 13 and a protruding section 14. A transmission component 17 is rotatably connected to the cylindrical section 13. The transmission component 17 is fixedly connected to the second gripper 602. A toothed surface 18 is provided on the transmission component 17, and a transmission gear 8 meshes with the toothed surface 18. A nut 19 is threadedly connected to the protruding section 14, and a toothed protrusion 20 is provided on the outer side of the nut 19. A limiting gear 21 is connected to the first screw 10, and the head of the first screw 10 presses the limiting gear 21 against the mounting base 9. The toothed protrusion 20 meshes with the limiting gear 21. The user inserts the head of the clamping claw 6 into the soil at the base of the weeds, then activates the power supply device 1 to provide power to the drive device 5. The drive device 5 starts running and generates driving force, which drives the transmission gear 8 to rotate. The transmission gear 8 meshes with the tooth surface 18, causing the transmission component 17 to rotate on the second screw 11 as the transmission gear 8 rotates. The transmission component 17 is fixedly connected to the second clamping claw 602. The rotating transmission component 17 drives the second clamping claw 602 to move, allowing the second clamping claw 602 and the first clamping claw 601 to clamp the roots of the weeds. The user can apply an upward force to the weed puller to pull the weeds out of the soil by the roots. The user only needs to insert the clamping claw 6 into the base of the weeds and then start the weed puller to achieve the clamping of the weed roots. There is no need to step on the head of the weed puller to tighten the clamping claw 6, which effectively saves the user's physical strength and makes weeding more effortless and faster.

[0031] The drive device 5 is a gear set driven by a motor or a single gear driven by a motor. It is a common technology on the market and is not shown in the attached drawings. It will not be described in detail here.

[0032] Preferably, the toothed protrusions 20 are in a ring shape on the outside of the nut 19.

[0033] See Figure 2 , 3As shown in Figures 5 and 7, the second screw 11 also includes a protruding head 15 and a cross-sectional section 16. The two ends of the cross-sectional section 16 are connected to the cylindrical section 13 and the protruding section 14, respectively. The cylindrical section 13 is connected to the protruding head 15. The mounting base 9 has a shaped hole 22, which is fitted to the cross-sectional section 16. The cooperation between the cross-sectional section 16 on the second screw 11 and the shaped hole 22 on the mounting base 9 ensures a very stable connection of the second screw 11 on the mounting base 9, preventing the second screw 11 from rotating out of the mounting base 9 when subjected to vibration or shaking.

[0034] Preferably, the second screw 11 is integrally formed, with the protruding head 15, cylindrical section 13, cross section 16 and raised section 14 sequentially arranged on the second screw 11.

[0035] See Figures 1-4 As shown, the first gripper 601 and the second gripper 602 are located on the same side of the mounting base 9. The fact that the first gripper 601 and the second gripper 602 are located on the same side of the mounting base 9 makes the overall structure of the gripper 6 very compact, greatly reducing the overall size of the gripping device 3 and making it more convenient for the user to operate.

[0036] See Figure 3 , 4 As shown in Figure 6, the transmission component 17 includes a sector-shaped portion 23 and an extension portion 24. The extension portion 24 is rotatably connected to the cylindrical section 13. The extension portion 24 is fixedly connected to the second gripper 602. The toothed surface 18 is located on the side of the sector-shaped portion 23, close to the edge of the sector-shaped portion 23. The location of the toothed surface 18 on the side of the sector-shaped portion 23 and its proximity to the edge of the sector-shaped portion 23 allows the transmission gear 8 to drive the transmission component 17 to rotate with only a small angle. This, in turn, causes the transmission component 17 to move the second gripper 602, realizing the gripping function of the gripper 6. This makes the weeding machine more sensitive and effectively improves the efficiency of weeding.

[0037] See Figures 1-4 As shown, the tip of the first gripper 601 faces the tip of the second gripper 602. The opposing tips of the first gripper 601 and the second gripper 602 ensure that the gripper 6 experiences a very even force when pulling out weeds, making the weeder work more smoothly during manual weeding operations.

[0038] In use, the user inserts the head of the gripper 6 into the soil around the roots of the weeds. The first gripper 601 and the second gripper 602 are located on either side of the roots of the weeds. The power supply device 1 is then activated to provide power to the drive device 5. The drive device 5 starts running and generates driving force, thereby driving the transmission gear 8 to rotate. The transmission gear 8 meshes with the tooth surface 18, causing the transmission component 17 to rotate on the second screw 11 as the transmission gear 8 rotates. The transmission component 17 and the second gripper 602 are fixedly connected. The rotating transmission component 17 drives the second gripper 602 to move, so that the tips of the opposing first gripper 601 and the second gripper 602 approach each other until the tips of the first gripper 601 and the second gripper 602 can grip the roots of the weeds. The user can then apply an upward force to the weed puller to pull the weeds out of the soil by the roots.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lithium-ion battery-powered weeding machine, comprising a power supply device (1), a connecting sleeve (2), and a gripping device (3), wherein the connecting sleeve (2) is connected between the power supply device (1) and the gripping device (3), and the power supply device (1) and the gripping device (3) are electrically connected, characterized in that: The gripping device (3) includes a housing (4), a drive unit (5), and a gripping claw (6). The drive unit (5) is located inside the housing (4). The housing (4) has a clearance opening (7) for the gripping claw (6) to extend. The drive unit (5) is electrically connected to the power supply device (1). The drive unit (5) includes a transmission gear (8). A mounting base (9) is connected to the drive unit (5). A first screw (10) and a second screw (11) are provided on the mounting base (9). The first screw (10) and the second screw (11) pass through the mounting base (9) respectively. The gripping claw (6) includes a first gripper (601) and a second gripper (602). The first gripper (601) has a connecting hole (12). The nail (10) is threadedly connected to the connecting hole (12). The second screw (11) includes a cylindrical section (13) and a protruding section (14). A transmission component (17) is rotatably connected to the cylindrical section (13). The transmission component (17) is fixedly connected to the second jaw (602). A toothed surface (18) is provided on the transmission component (17). The transmission gear (8) meshes with the toothed surface (18). A nut (19) is threadedly connected to the protruding section (14). A toothed protrusion (20) is provided on the outside of the nut (19). A limiting gear (21) is connected to the first screw (10). The head of the first screw (10) presses the limiting gear (21) against the mounting base (9). The toothed protrusion (20) meshes with the limiting gear (21).

2. The lithium-ion battery-powered weeding machine according to claim 1, characterized in that: The second screw (11) also includes a protruding head (15) and a cross-section (16). The two ends of the cross-section (16) are connected to the cylindrical section (13) and the protruding section (14) respectively. The cylindrical section (13) is connected to the protruding head (15). The mounting base (9) is provided with a shaped hole (22). The cross-section (16) and the shaped hole (22) are adapted to each other.

3. A lithium-ion battery-powered weeding machine according to claim 2, characterized in that: The first gripper (601) and the second gripper (602) are located on the same side of the mounting base (9).

4. A lithium-ion battery-powered weeding machine according to claim 3, characterized in that: The transmission component (17) includes a fan-shaped portion (23) and an extension portion (24). The extension portion (24) is rotatably connected to the cylindrical section (13). The extension portion (24) is fixedly connected to the second gripper (602). The toothed surface (18) is located on the side of the fan-shaped portion (23) and is close to the edge of the fan-shaped portion (23).

5. A lithium-ion battery-powered weeding machine according to claim 4, characterized in that: The tips of the first gripper (601) and the tips of the second gripper (602) are positioned facing each other.

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