A posture-switchable weeding machine

Abstract

The utility model relates to agricultural implement technical field especially use posture can switch's weeding machine, including energy supply device and grabbing device, energy supply device and grabbing device electric connection, still include shell and lengthening rod piece, the shell includes installation part, handle part and base part, one end of handle part and installation part are connected, the other end of handle part and base part are connected, and the grabbing device sets up in installation part, and the grabbing device includes clamping claw, and the installation part is provided with the avoiding mouth that clamping claw projects, when base part and energy supply device connect, weeding machine switches to short -sleeved hand -held state, when base part and lengthening rod piece connect and lengthening rod piece connect energy supply device, weeding machine switches to long -sleeved hand -held state, the utility model provides a kind of use posture can switch's weeding machine, solves the problem that traditional weeding machine cannot switch use posture.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a weeding machine with switchable operating postures. Background Technology

[0002] Because chemical spraying for weed control can cause some harm to the natural environment, manual weeding is now more encouraged. The use of weeding machines can effectively reduce the labor intensity of manual weeding and improve weeding efficiency.

[0003] However, the usage of lawnmowers on the market is usually quite fixed. Short lawnmowers allow users to squat while mowing, while long-handled lawnmowers allow users to stand while mowing. Users can only maintain one posture when using either a short or long-handled lawnmower, which can easily lead to fatigue and other problems after prolonged use, thus reducing the user's mowing efficiency. There is an urgent need for a lawnmower that allows users to switch between different postures. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a weeding machine with switchable operating postures, thus solving the issue that traditional weeding machines cannot switch operating postures.

[0005] The technical solution adopted by this utility model is as follows: a weeding machine with switchable posture, including a power supply device and a gripping device, wherein the power supply device and the gripping device are electrically connected, and further including a housing and an extension rod. The housing includes a mounting part, a handle part and a base part. One end of the handle part is connected to the mounting part, and the other end of the handle part is connected to the base part. The gripping device is disposed in the mounting part and includes a clamping claw. The mounting part is provided with a clearance opening for the clamping claw to extend. When the base part and the power supply device are connected, the weeding machine switches to a short handheld state; when the base part and the extension rod are connected and the extension rod is connected to the power supply device, the weeding machine switches to a long handheld state.

[0006] With the above technical solution, when a user needs to hold the weeder in a squatting position for weeding, the power supply device can be directly assembled onto the base of the weeder. At this time, the weeder switches to a short, handheld mode. The user grips the handle, inserts the head of the gripping claw into the soil at the base of the weed, and then activates the power supply device to provide power to the gripping device. This generates driving force, which is transmitted to the gripping claw, causing it to move and grip the roots of the weed. The user then applies an upward force to the weeder to pull the weed out of the soil by the roots. When the user needs to... To use a standing position to hold the lawnmower, first assemble the power supply device onto the extension rod, then assemble the extension rod onto the base of the lawnmower. At this point, the lawnmower switches to a long, handheld position. The user grips the extension rod and repeats the above steps to remove weeds. The user can switch postures by using different installation methods of the extension rod and power supply device on the lawnmower, allowing the user to freely switch between squatting and standing postures when using the lawnmower. This avoids the problem of fatigue caused by maintaining one posture for a long time, thereby improving the user's weeding efficiency.

[0007] Furthermore, a first switch device is provided on the handle, and a power switch is provided on the base; when the weeding machine is switched to the short handheld mode, the first switch device, the power switch, the power supply device, and the gripping device are electrically connected.

[0008] With the above technical solution, when the weed puller is in the short handheld mode, the user needs to press the power switch to start the power supply device, which will then power the power supply device and the gripping device. Then, press the first switch to start the gripping device, which will start operating under the power supply of the power supply device, thereby providing driving force for the movement of the gripping claws. This makes the operation of the weed puller very simple and convenient for the user's daily use.

[0009] Furthermore, the base portion is provided with a first mounting cavity, and a first sliding groove is provided on the side of the first mounting cavity. The extended rod includes a connecting portion, a connecting rod, and a control portion. The two ends of the connecting rod are respectively connected to the connecting portion and the control portion. The control portion is connected to the power supply device. The connecting portion is provided with a mounting flange corresponding to the first sliding groove. The mounting flange can be slidably connected to the first sliding groove. An mounting notch is also provided in the first mounting cavity. A limiting member is provided in the connecting portion. The limiting member includes a pushing portion and a limiting protrusion. The limiting protrusion and the inner wall of the connecting portion abut against a first elastic member. When the pushing portion is driven, the first elastic member is compressed by the limiting protrusion, and the limiting protrusion retracts into the connecting portion. When the weeding machine is switched to the long handheld mode, the mounting flange is fitted into the first sliding groove, and the limiting protrusion is engaged in the mounting notch.

[0010] With the above technical solution, the user brings the extended rod close to the base, aligns the mounting flange on the connecting part with the first sliding groove, and then drives the mounting flange to slide in the first sliding groove until the mounting flange is engaged in the first sliding groove and the limiting protrusion is engaged in the mounting notch. At this time, the weeder switches to the long handheld mode, and the user can perform standing weeding. When the user needs to release the long handheld mode, a driving force is applied to the pushing part, which causes the limiting protrusion to compress the first elastic element. The limiting protrusion can retract into the connecting part until the limiting protrusion and the mounting notch are completely disengaged. The locking state of the extended rod and the base is released, and the user can drive the mounting flange to slide out from the first sliding groove, thereby separating the extended rod and the base. This makes the disassembly and assembly of the long handheld mode of the weeder very convenient.

[0011] Furthermore, the limiting protrusion is provided with a first inclined surface; during the installation of the connecting part and the base part, the first inclined surface is squeezed by the base part, and the first elastic element is compressed by the limiting protrusion until the limiting protrusion enters the installation notch, the first inclined surface is released from the compression of the base part, and the limiting protrusion is rebounded by the first elastic element.

[0012] With the above technical solution, the user drives the mounting flange to slide in the first groove. After the extended rod slides a certain distance on the base, the limiting protrusion contacts the base and the first inclined surface is squeezed by the base, causing the limiting protrusion to compress the first elastic element. When the limiting protrusion enters the mounting notch, the base no longer squeezes the first inclined surface, the first elastic element begins to rebound, and the limiting protrusion gradually engages with the mounting notch under the action of the rebound force. The setting of the first inclined surface on the limiting protrusion makes the movement of the limiting protrusion smoother when it is squeezed by the base, avoiding situations such as the limiting protrusion and the base getting stuck.

[0013] Furthermore, the control unit is provided with a second mounting cavity, and a second sliding groove is provided on the side of the second mounting cavity. The power supply device is correspondingly provided with a mounting protrusion, which can be slidably connected with the second sliding groove. A positioning notch is also provided in the second mounting cavity, and a positioning element is correspondingly provided in the power supply device. The positioning element includes a pressing part and a positioning protrusion. The positioning protrusion and the inner wall of the power supply device abut against a second elastic element. The positioning protrusion is provided with a second inclined surface for bearing the pressure of the control unit. When the pressing part is driven, the second elastic element is compressed by the positioning protrusion, and the positioning protrusion retracts into the power supply device. When the power supply device and the control unit are assembled, the mounting protrusion is fitted into the second sliding groove, and the positioning protrusion is engaged in the positioning notch.

[0014] With the above technical solution, the user brings the power supply device close to the control unit, aligns the mounting protrusion on the power supply device with the second slide groove, and then drives the mounting protrusion to slide within the second slide groove. After the power supply device slides a certain distance on the control unit, the positioning protrusion contacts the control unit, and the second inclined surface is squeezed by the control unit, causing the positioning protrusion to compress the second elastic element. When the positioning protrusion enters the positioning notch, the control unit stops squeezing the second inclined surface, and the second elastic element begins to rebound. The positioning protrusion, under the action of the rebound force, gradually engages with the positioning notch until the mounting protrusion is completely fitted. Within the second slide groove, the positioning protrusion is fully engaged within the positioning notch. At this point, the power supply device and control unit are assembled, and the user completes the assembly of the extension rod and power supply device. When the user needs to release the locking state of the power supply device and extension rod, a driving force is applied to the pressing part, causing the positioning protrusion to compress the second elastic element. The positioning protrusion can retract into the control unit until the positioning protrusion and positioning notch are completely disengaged. The locking state of the power supply device and extension rod is released, and the user can drive the mounting protrusion to slide out of the second slide groove, thereby separating the power supply device and extension rod.

[0015] Furthermore, the control unit is provided with a first handle, and the first handle is provided with a second switch device; when the weeding machine is switched to the long handheld mode, the second switch device is electrically connected to the power switch, the power supply device, and the gripping device.

[0016] With the above technical solution, when the weeding machine is in the long handheld position, the user needs to press the power switch to start the power supply device, which will then power the power supply device and the gripping device. Then, press the second switch on the first handle to start the gripping device, so that the gripping device starts to operate under the power supply of the power supply device, thereby providing driving force for the movement of the gripping claws, which is extremely convenient to use.

[0017] Furthermore, the mounting protrusion can be slidably connected to the first sliding groove; the mounting notch can be engaged with the positioning protrusion; when the weeding machine is switched to the short handheld mode, the mounting protrusion is fitted into the first sliding groove, and the positioning protrusion is engaged in the mounting notch.

[0018] Through the above technical solution, the user brings the power supply device close to the base, aligns the mounting protrusion with the first sliding groove, and then drives the mounting protrusion to slide within the first sliding groove. After the power supply device slides a certain distance on the base, the positioning protrusion contacts the base, and the second inclined surface is squeezed by the base, causing the positioning protrusion to compress the second elastic element. When the positioning protrusion enters the mounting notch, the base no longer squeezes the second inclined surface, and the second elastic element begins to rebound. The positioning protrusion, under the action of the rebound force, gradually engages with the mounting notch until the mounting protrusion is completely embedded in the first sliding groove. When the positioning protrusion is fully engaged in the mounting notch, the weeder switches to the short handheld mode, allowing the user to perform weeding in a squatting position. When the user needs to disengage from the short handheld mode, applying a driving force to the pressing part causes the positioning protrusion to compress the second elastic element. The positioning protrusion retracts into the power supply device until it completely disengages from the mounting notch. This releases the locking of the power supply device and the base, allowing the user to drive the mounting strip to slide out of the first groove, thus separating the power supply device from the base. This makes the short handheld mode of the weeder very easy to assemble and disassemble.

[0019] Furthermore, the gripping device also includes a driving device electrically connected to the power supply device. The driving device includes a transmission gear and a mounting base connected to it. The mounting base has a first screw and a second screw, which pass through the mounting base. The gripping jaws include a first jaw and a second jaw. The first jaw has a connecting hole, and 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, and the transmission component is fixedly connected to the second jaw. 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.

[0020] 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, thereby driving the transmission gear to rotate. The transmission gear meshes with the tooth surface, causing the transmission component on the second screw to rotate 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 weeds out of the soil by the roots. It is very convenient to use, and the weeding operation is more labor-saving and faster.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the short, handheld configuration of this utility model. Figure 2 This is a schematic diagram of the short, handheld configuration of this utility model. Figure 3 This is a schematic diagram of the long handheld configuration of this utility model. Figure 4 This is one of the schematic diagrams of the extended rod structure of this utility model; Figure 5 This is the second schematic diagram of the extended rod structure of this utility model; Figure 6 This is a partial structural diagram of the connecting part of this utility model; Figure 7 This is a schematic diagram of the power supply device of this utility model; Figure 8 This is a schematic diagram of the energy supply device of this utility model. Figure 9 This is one of the partial structural schematic diagrams of this utility model; Figure 10 This is the second partial structural schematic diagram of the present utility model; Figure 11 This is a schematic diagram of the gripping device structure of this utility model; Figure 12 This is an exploded view of the gripping device of this utility model; Figure 13 This is a schematic diagram of the gripping device of this utility model. Figure 14 This is a schematic diagram of the transmission component structure of this utility model; Figure 15 This is a schematic diagram of the second screw structure of this utility model; Figure 16 This is a schematic diagram of the nut structure of this utility model; The utility model reference information is as follows: 1. Power supply device; 2. Gripping device; 3. Housing; 301. Mounting part; 302. Handle part; 303. Base part; 4. Extension rod; 401. Connecting part; 402. Connecting rod; 403. Control part; 5. Gripping claw; 501. First gripper; 502. Second gripper; 6. Clearance opening; 7. First switching device; 8. Power switch; 9. First mounting cavity; 10. First slide groove; 11. Mounting flange; 12. Mounting notch; 13. Limiting element; 131. Pushing part; 132. Limiting protrusion; 14. First elastic element; 15. First inclined surface; 16. Second mounting cavity; 17. Second slide groove ; 18. Mounting ridge; 19. Positioning notch; 20. Second elastic element; 21. Positioning element; 211. Pressing part; 212. Positioning protrusion; 22. Second inclined surface; 23. First grip; 24. Second switching device; 25. Drive device; 26. Transmission gear; 27. Mounting base; 28. First screw; 29. ​​Second screw; 291. Cylindrical section; 292. Protruding section; 293. Protruding head; 294. Cross-sectional section; 30. Connecting hole; 31. Transmission element; 32. Toothed surface; 33. Nut; 34. Toothed protrusion; 35. Limiting gear; 36. Irregular hole; 37. Fan-shaped part; 38. Extension part; 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 1-16As shown, a weed puller with switchable posture includes a power supply device 1 and a gripping device 2, which are electrically connected. It also includes a housing 3 and an extension rod 4. The housing 3 includes a mounting part 301, a handle part 302, and a base part 303. One end of the handle part 302 is connected to the mounting part 301, and the other end is connected to the base part 303. The gripping device 2 is disposed within the mounting part 301 and includes a clamping claw 5. The mounting part 301 has an obstruction opening 6 for the clamping claw 5 to extend. When the base part 303 is connected to the power supply device 1, the weed puller switches to a short, handheld mode. When the base part 303 is connected to the extension rod 4 and the extension rod 4 is connected to the power supply device 1, the weed puller switches to a long, handheld mode. When the user needs to hold the weeder in a squatting position, the power supply device 1 can be directly assembled onto the base 303 of the weeder. At this time, the weeder switches to a short, handheld mode. The user grips the handle 302, inserts the head of the gripping claw 5 into the soil around the weed roots, and then activates the power supply device 1 to provide power to the gripping device 2. This generates a driving force that is transmitted to the gripping claw 5, causing it to move and grip the roots of the weeds. The user then applies an upward force to the weeder to pull the weeds out of the soil by the roots. When the user needs to stand... When using the handheld weeder, first assemble the power supply device 1 onto the extension rod 4, then assemble the extension rod 4 onto the base 303 of the weeder. At this point, the weeder switches to the long handheld mode. The user grips the extension rod 4 and repeats the above operation to remove weeds. The user can switch postures by using different installation methods of the extension rod 4 and the power supply device 1 on the weeder, allowing the user to freely switch between squatting and standing postures when using the weeder. This avoids the problem of fatigue caused by maintaining one posture for a long time, thereby improving the user's weeding efficiency.

[0031] The preferred power supply device 1 is a battery pack.

[0032] See Figures 1-3 As shown, a first switch device 7 is provided on the handle part 302, and a power switch 8 is provided on the base part 303. When the weeder is switched to the short handheld mode, the first switch device 7 and the power switch 8 are electrically connected to the power supply device 1 and the gripping device 2. When the weeder is in the short handheld mode, the user needs to press the power switch 8 to start the power supply device 1, which will power the power supply device 1 and the gripping device 2. Then, the user needs to press the first switch device 7 to start the gripping device 2, so that the gripping device 2 starts to operate under the power supply of the power supply device 1, thereby providing driving force for the movement of the gripping claw 5. This makes the operation of the weeder very simple and convenient for the user's daily use.

[0033] See Figures 3-6As shown, the base portion 303 is provided with a first mounting cavity 9, and a first sliding groove 10 is provided on the side of the first mounting cavity 9. The extension rod 4 includes a connecting portion 401, a connecting rod 402, and a control portion 403. The two ends of the connecting rod 402 are respectively connected to the connecting portion 401 and the control portion 403. The control portion 403 is connected to the power supply device 1. The connecting portion 401 is provided with a mounting flange 11 corresponding to the first sliding groove 10. The mounting flange 11 can slide and connect with the first sliding groove 10. An mounting notch 12 is also provided in the first mounting cavity 9. The connecting part 401 is provided with a limiting member 13, which includes a pushing part 131 and a limiting protrusion 132. The limiting protrusion 132 and the inner wall of the connecting part 401 abut against the first elastic member 14. When the pushing part 131 is driven, the first elastic member 14 is compressed by the limiting protrusion 132 and the limiting protrusion 132 retracts into the connecting part 401. When the weeding machine is switched to the long handheld mode, the mounting flange 11 is fitted into the first sliding groove 10 and the limiting protrusion 132 is engaged in the mounting notch 12. The user brings the extension rod 4 close to the base 303, aligns the mounting flange 11 on the connecting part 401 with the first slide groove 10, and then drives the mounting flange 11 to slide within the first slide groove 10 until the mounting flange 11 is engaged within the first slide groove 10 and the limiting protrusion 132 is engaged within the mounting notch 12. At this time, the weeder switches to the long handheld mode, and the user can perform standing weeding operations. When the user needs to disengage the long handheld mode, a driving force is applied to the pushing part 131, causing the limiting protrusion 132 to compress the first elastic member 14. The limiting protrusion 132 can retract into the connecting part 401 until the limiting protrusion 132 and the mounting notch 12 are completely disengaged. The locking state of the extension rod 4 and the base 303 is released, and the user can drive the mounting flange 11 to slide out from the first slide groove 10, thereby separating the extension rod 4 and the base 303. This makes the disassembly and assembly of the long handheld mode of the weeder very convenient.

[0034] The first elastic element 14 is preferably a spring.

[0035] See Figure 6As shown, a first inclined surface 15 is provided on the limiting protrusion 132; during the installation process of the connecting part 401 and the base part 303, the first inclined surface 15 is squeezed by the base part 303, and the first elastic member 14 is compressed by the limiting protrusion 132 until the limiting protrusion 132 enters the installation notch 12, the first inclined surface 15 is released from the squeezing of the base part 303 and the limiting protrusion 132 is rebounded by the first elastic member 14. The user drives the mounting flange 11 to slide within the first groove 10. After the extended rod 4 slides a certain distance on the base 303, the limiting protrusion 132 contacts the base 303 and the first inclined surface 15 is squeezed by the base 303. This causes the limiting protrusion 132 to compress the first elastic member 14 until the limiting protrusion 132 enters the mounting notch 12. At this point, the base 303 stops squeezing the first inclined surface 15, and the first elastic member 14 begins to rebound. The limiting protrusion 132 gradually engages with the mounting notch 12 under the action of the rebound force. The setting of the first inclined surface 15 on the limiting protrusion 132 makes the movement of the limiting protrusion 132 smoother when it is squeezed by the base 303, avoiding situations such as jamming between the limiting protrusion 132 and the base 303.

[0036] See Figure 1 , 2As shown in Figures 7 and 8, the control unit 403 is provided with a second mounting cavity 16, and a second sliding groove 17 is provided on the side of the second mounting cavity 16. The power supply device 1 is provided with a mounting protrusion 18, which can be slidably connected to the second sliding groove 17. The second mounting cavity 16 is also provided with a positioning notch 19, and the power supply device 1 is provided with a positioning member 21. The positioning member 21 includes a pressing part 211 and a positioning protrusion 212. The positioning protrusion 212 and the inner wall of the power supply device 1 abut against the second elastic member 20. The positioning protrusion 212 is provided with a second inclined surface 22 for bearing the pressure of the control unit 403. When the pressing part 211 is driven, the second elastic member 20 is compressed by the positioning protrusion 212 and the positioning protrusion 212 retracts into the power supply device 1. When the power supply device 1 and the control unit 403 are assembled, the mounting protrusion 18 is fitted into the second sliding groove 17, and the positioning protrusion 212 is engaged in the positioning notch 19. The user brings the power supply device 1 close to the control unit 403, aligns the mounting protrusion 18 on the power supply device 1 with the second slide groove 17, and then drives the mounting protrusion 18 to slide within the second slide groove 17. After the power supply device 1 slides a certain distance on the control unit 403, the positioning protrusion 212 contacts the control unit 403, and the second inclined surface 22 is squeezed by the control unit 403, causing the positioning protrusion 212 to compress the second elastic member 20. When the positioning protrusion 212 enters the position within the positioning notch 19, the control unit 403 stops squeezing the second inclined surface 22, and the second elastic member 20 begins to rebound. The positioning protrusion 212, under the action of the rebound force, gradually engages with the positioning notch 19 until the mounting protrusion 18 is completely fitted. Within the second slide groove 17, the positioning protrusion 212 is fully engaged within the positioning notch 19. At this point, the power supply device 1 and the control unit 403 are assembled, and the user completes the assembly of the extension rod 4 and the power supply device 1. When the user needs to release the locking state of the power supply device 1 and the extension rod 4, a driving force is applied to the pressing part 211, causing the positioning protrusion 212 to compress the second elastic member 20. The positioning protrusion 212 can retract into the control unit 403 until the positioning protrusion 212 and the positioning notch 19 are completely disengaged. The locking state of the power supply device 1 and the extension rod 4 is released, and the user can drive the mounting protrusion 18 to slide out of the second slide groove 17, thereby separating the power supply device 1 and the extension rod 4.

[0037] The second elastic element 20 is preferably a spring.

[0038] See Figures 3-5As shown, the control unit 403 is equipped with a first handle 23, and a second switch device 24 is provided on the first handle 23. When the weeder is switched to the long handheld mode, the second switch device 24, the power switch 8, the power supply device 1, and the gripping device 2 are electrically connected. When the weeder is in the long handheld mode, the user needs to press the power switch 8 to start the power supply device 1, which will power the power supply device 1 and the gripping device 2. Then, the user needs to press the second switch device 24 on the first handle 23 to start the gripping device 2, so that the gripping device 2 starts to operate under the power supply of the power supply device 1, thereby providing driving force for the movement of the gripping claw 5, which is extremely convenient to use.

[0039] See Figures 3-8 As shown, the mounting protrusion 18 can be slidably connected to the first slide groove 10; the mounting notch 12 can be engaged with the positioning protrusion 212; when the weeder is switched to the short handheld mode, the mounting protrusion 18 is fitted into the first slide groove 10, and the positioning protrusion 212 is engaged in the mounting notch 12. The user brings the power supply device 1 close to the base 303, aligns the mounting protrusion 18 with the first groove 10, and then drives the mounting protrusion 18 to slide within the first groove 10. After the power supply device 1 slides a certain distance on the base 303, the positioning protrusion 212 contacts the base 303, and the second inclined surface 22 is squeezed by the base 303, causing the positioning protrusion 212 to compress the second elastic member 20. When the positioning protrusion 212 enters the position within the mounting notch 12, the base 303 stops squeezing the second inclined surface 22, and the second elastic member 20 begins to rebound. The positioning protrusion 212, under the action of the rebound force, gradually engages with the mounting notch 12 until the mounting protrusion 18 is completely fitted into the first groove. Within 10, the positioning protrusion 212 is fully engaged in the mounting notch 12, at which point the weeder switches to the short handheld mode, allowing the user to perform weeding in a squatting position. When the user needs to disengage from the short handheld mode, a driving force is applied to the pressing part 211, causing the positioning protrusion 212 to compress the second elastic element 20. The positioning protrusion 212 can retract into the power supply device 1 until the positioning protrusion 212 and the mounting notch 12 are completely disengaged, releasing the locking state of the power supply device 1 and the base part 303. The user can then drive the mounting protrusion 18 to slide out from the first slide groove 10, thereby separating the power supply device 1 and the base part 303, making the disassembly and assembly of the short handheld mode of the weeder very convenient.

[0040] See Figures 9-16As shown, the gripping device 2 also includes a drive device 25, which is electrically connected to the power supply device 1. The drive device 25 includes a transmission gear 26, and a mounting base 27 is connected to the drive device 25. A first screw 28 and a second screw 29 are provided on the mounting base 27. The first screw 28 and the second screw 29 pass through the mounting base 27 respectively. The gripping claw 5 includes a first gripper 501 and a second gripper 502. A connecting hole 30 is provided on the first gripper 501, and the first screw 28 is threaded into the connecting hole 30. The second screw 28... 9 includes a cylindrical section 291 and a raised section 292. A transmission component 31 is rotatably connected to the cylindrical section 291. The transmission component 31 is fixedly connected to the second gripper 502. The transmission component 31 is provided with a toothed surface 32. The transmission gear 26 meshes with the toothed surface 32. A nut 33 is threadedly connected to the raised section 292. A toothed protrusion 34 is provided on the outside of the nut 33. A limiting gear 35 is connected to the first screw 28. The head of the first screw 28 presses the limiting gear 35 against the mounting base 27. The toothed protrusion 34 meshes with the limiting gear 35. The user inserts the head of the gripper 5 into the soil around the roots of the weeds, then activates the power supply device 1 to provide power to the drive device 25. The drive device 25 starts running and generates driving force, which drives the transmission gear 26 to rotate. The transmission gear 26 meshes with the tooth surface 32, causing the transmission component 31 to rotate on the second screw 29 along with the rotation of the transmission gear 26. The transmission component 31 and the second gripper 502 are fixedly connected. The rotating transmission component 31 drives the second gripper 502 to move, allowing the second gripper 502 and the first gripper 501 to grip 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. It is very convenient to use and makes weeding more labor-saving and faster.

[0041] The drive device 25 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 figure. It will not be described in detail here.

[0042] Preferably, the toothed protrusions 34 are in a ring shape on the outside of the nut 33.

[0043] See Figure 12 , 14 As shown in Figure 15, the second screw 29 also includes a protruding head 293 and a cross-sectional section 294. The two ends of the cross-sectional section 294 are connected to a cylindrical section 291 and a protruding section 292, respectively. The cylindrical section 291 is connected to the protruding head 293. The mounting base 27 has a shaped hole 36, which is fitted to the cross-sectional section 294. The cooperation between the cross-sectional section 294 on the second screw 29 and the shaped hole 36 on the mounting base 27 ensures a stable connection of the second screw 29 on the mounting base 27, preventing the second screw 29 from rotating out of the mounting base 27 when subjected to vibration or shaking.

[0044] Preferably, the second screw 29 is integrally formed, with the protruding head 293, cylindrical section 291, cross section 294 and raised section 292 sequentially arranged on the second screw 29.

[0045] See Figure 11 , 14 As shown, the transmission component 31 includes a sector-shaped portion 37 and an extension portion 38. The extension portion 38 is rotatably connected to the cylindrical section 291. The extension portion 38 is fixedly connected to the second gripper 502. The toothed surface 32 is located on the side of the sector-shaped portion 37, close to the edge of the sector-shaped portion 37. The location of the toothed surface 32 on the side of the sector-shaped portion 37 and its proximity to the edge of the sector-shaped portion 37 allows the transmission gear 26 to drive the transmission component 31 to rotate with only a small angle. This, in turn, causes the transmission component 31 to move the second gripper 502, realizing the gripping function of the gripper 5. This makes the weeding machine more sensitive and effectively improves the efficiency of weeding.

[0046] When using this invention, if the user needs to hold the weeder in a squatting position, the power supply device 1 can be brought close to the base 303, the mounting protrusion 18 aligned with the first sliding groove 10, and then the mounting protrusion 18 driven to slide within the first sliding groove 10. After the power supply device 1 slides a certain distance on the base 303, the positioning protrusion 212 contacts the base 303, and the second inclined surface 22 is squeezed by the base 303, causing the positioning protrusion 212 to compress the second elastic member 20 until the positioning protrusion... When 212 enters the position within the mounting notch 12, the base portion 303 no longer presses against the second inclined surface 22, and the second elastic element 20 begins to rebound. The positioning protrusion 212, under the action of the rebound force, gradually engages with the mounting notch 12 until the mounting protrusion 18 is fully fitted into the first sliding groove 10, and the positioning protrusion 212 is fully engaged within the mounting notch 12. At this point, the weeder switches to a short, handheld mode, allowing the user to perform squatting weeding operations. The user grips the handle portion 302 and inserts the head of the clamping claw 5 into... Insert the weed into the soil around the roots of the weeds, then press the power switch 8 to activate the power supply device 1. This powers both the power supply device 1 and the gripping device 2. Then press the first switch 7 to activate the gripping device 2, causing it to operate under the power supply from the power supply device 1. This provides driving force to the gripping claws 5, which in turn drive the gripping claws 5 to grip the roots of the weeds. At this point, the user can apply an upward force to the weed puller. The weeds are pulled out of the soil by the roots; when the user needs to release the short handheld state, a driving force is applied to the pressing part 211, so that the positioning protrusion 212 compresses the second elastic member 20. The positioning protrusion 212 can retract into the power supply device 1 until the positioning protrusion 212 and the mounting notch 12 are completely separated. The locking state of the power supply device 1 and the base part 303 is released, and the user can drive the mounting protrusion 18 to slide out from the first slide groove 10, thereby separating the power supply device 1 and the base part 303.

[0047] When the user needs to hold the weeder in a standing position, first bring the power supply device 1 close to the control unit 403, align the mounting protrusion 18 on the power supply device 1 with the second slide groove 17, and then drive the mounting protrusion 18 to slide in the second slide groove 17. After the power supply device 1 slides a certain distance on the control unit 403, the positioning protrusion 212 contacts the control unit 403 and the second inclined surface 22 is squeezed by the control unit 403, causing the positioning protrusion 212 to compress the second elastic member 20 until the positioning protrusion 212 enters the position within the positioning notch 19. At this point, the control unit 403 stops squeezing the second inclined surface 22, and the second elastic member 20 begins to rebound. The positioning protrusion 212, under the action of the rebound force, gradually engages with the positioning notch 19 until it is securely engaged. The mounting protrusion 18 is fully fitted into the second slide groove 17, and the positioning protrusion 212 is fully engaged in the positioning notch 19. At this point, the power supply device 1 and the control unit 403 are assembled, and the user completes the assembly of the extension rod 4 and the power supply device 1. The user then moves the extension rod 4 close to the base part 303, aligns the mounting flange 11 on the connecting part 401 with the first slide groove 10, and drives the mounting flange 11 to slide in the first slide groove 10 until the extension rod 4 slides a certain distance on the base part 303. Then, the limiting protrusion 132 contacts the base part 303, and the first inclined surface 15 is squeezed by the base part 303, causing the limiting protrusion 132 to compress the first elastic member 14 until the limiting protrusion 132 enters the position in the mounting notch 12. The base 303 no longer presses against the first inclined surface 15, and the first elastic element 14 begins to rebound. The limiting protrusion 132, under the action of the rebound force, gradually engages with the mounting notch 12 until the mounting flange 11 is fully fitted into the first slide groove 10 and the limiting protrusion 132 is fully engaged with the mounting notch 12. At this time, the weeder switches to the long handheld mode, and the user can perform standing weeding operations. The user grips the first handle 23 on the extended rod 4, first presses the power switch 8 to start the power supply device 1, then the power supply device 1 and the gripping device 2 are powered on. Then, the user presses the second switch device 24 on the first handle 23 to start the gripping device 2, so that the gripping device 2 starts to operate under the power supply of the power supply device 1, from the movement of the gripping claw 5. The gripping device 2 generates a driving force, which is transmitted to the clamping claw 5, thereby driving the clamping claw 5 to move and clamp the roots of the weeds. At this time, the user can apply an upward force to the weed puller to pull the weeds out of the soil by the roots. When the user needs to release the long handheld state, the driving force is applied to the pushing part 131, which causes the limiting protrusion 132 to compress the first elastic member 14. The limiting protrusion 132 can retract into the connecting part 401 until the limiting protrusion 132 and the mounting notch 12 are completely disengaged. The locking state of the extension rod 4 and the base part 303 is released, and the user can drive the mounting flange 11 to slide out of the first sliding groove 10, thereby separating the extension rod 4 and the base part 303.

[0048] 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 weeding machine with switchable posture, comprising a power supply device (1) and a gripping device (2), wherein the power supply device (1) and the gripping device (2) are electrically connected, characterized in that: It also includes a housing (3) and an extension rod (4). The housing (3) includes a mounting part (301), a handle part (302), and a base part (303). One end of the handle part (302) is connected to the mounting part (301), and the other end of the handle part (302) is connected to the base part (303). The gripping device (2) is disposed in the mounting part (301). The gripping device (2) includes a clamping claw (5). The mounting part (301) is provided with a clearance opening (6) for the clamping claw (5) to extend. When the base part (303) is connected to the power supply device (1), the weeding machine switches to a short handheld state. When the base part (303) is connected to the extension rod (4) and the extension rod (4) is connected to the power supply device (1), the weeding machine switches to a long handheld state.

2. A weeding machine with switchable posture according to claim 1, characterized in that: A first switch device (7) is provided on the handle (302), and a power switch (8) is provided on the base (303). When the weeding machine is switched to the short handheld mode, the first switch device (7), the power switch (8), the power supply device (1), and the gripping device (2) are electrically connected.

3. A weeding machine with switchable posture according to claim 1 or 2, characterized in that: The base portion (303) is provided with a first mounting cavity (9), and a first sliding groove (10) is provided on the side of the first mounting cavity (9). The extended rod (4) includes a connecting portion (401), a connecting rod (402), and a control portion (403). The two ends of the connecting rod (402) are respectively connected to the connecting portion (401) and the control portion (403). The control portion (403) is connected to the power supply device (1). The connecting portion (401) is provided with a mounting flange (11) corresponding to the first sliding groove (10). The mounting flange (11) can slide with the first sliding groove (10). An mounting notch (12) is also provided in the first mounting cavity (9). The connecting part (401) is provided with a limiting member (13), which includes a pushing part (131) and a limiting protrusion (132). The limiting protrusion (132) and the inner wall of the connecting part (401) abut against a first elastic member (14). When the pushing part (131) is driven, the first elastic member (14) is compressed by the limiting protrusion (132) and the limiting protrusion (132) retracts into the connecting part (401). When the weeding machine is switched to the long handheld mode, the mounting flange (11) is fitted into the first sliding groove (10) and the limiting protrusion (132) is engaged in the mounting notch (12).

4. A weeding machine with switchable posture according to claim 3, characterized in that: The limiting protrusion (132) is provided with a first inclined surface (15); during the installation of the connecting part (401) and the base part (303), the first inclined surface (15) is squeezed by the base part (303), and the first elastic element (14) is compressed by the limiting protrusion (132) until the limiting protrusion (132) enters the installation notch (12), the first inclined surface (15) is released from the squeezing of the base part (303) and the limiting protrusion (132) is rebounded by the first elastic element (14).

5. A weeding machine with switchable posture according to claim 4, characterized in that: The control unit (403) is provided with a second mounting cavity (16), and a second sliding groove (17) is provided on the side of the second mounting cavity (16). The power supply device (1) is provided with a corresponding mounting protrusion (18), which can be slidably connected with the second sliding groove (17). The second mounting cavity (16) is also provided with a positioning notch (19), and the power supply device (1) is provided with a corresponding positioning element (21). The positioning element (21) includes a pressing part (211) and a positioning protrusion (212). The positioning protrusion (212) and the inner wall of the power supply device (1) jointly abut against each other. A second elastic element (20) is attached, and a second inclined surface (22) is provided on the positioning protrusion (212) for bearing the pressure of the control unit (403); when the pressing part (211) is driven, the second elastic element (20) is compressed by the positioning protrusion (212) and the positioning protrusion (212) retracts into the power supply device (1); when the power supply device (1) and the control unit (403) are assembled, the mounting protrusion (18) is fitted into the second sliding groove (17), and the positioning protrusion (212) is engaged in the positioning notch (19).

6. A weeding machine with switchable posture according to claim 5, characterized in that: The control unit (403) is provided with a first handle (23), and the first handle (23) is provided with a second switch device (24); when the weeding machine is switched to the long handheld mode, the second switch device (24) is electrically connected to the power switch (8), the power supply device (1), and the gripping device (2).

7. A weeding machine with switchable posture according to claim 5 or 6, characterized in that: The mounting protrusion (18) can be slidably connected to the first slide groove (10); the mounting notch (12) can be engaged with the positioning protrusion (212); when the weeding machine is switched to the short handheld mode, the mounting protrusion (18) is fitted into the first slide groove (10), and the positioning protrusion (212) is engaged in the mounting notch (12).

8. A weeding machine with switchable posture according to claim 7, characterized in that: The gripping device (2) further includes a driving device (25), which is electrically connected to the power supply device (1). The driving device (25) includes a transmission gear (26), and a mounting base (27) is connected to the driving device (25). A first screw (28) and a second screw (29) are provided on the mounting base (27). The first screw (28) and the second screw (29) pass through the mounting base (27) respectively. The gripping claw (5) includes a first gripper (501) and a second gripper (502). A connecting hole (30) is provided on the first gripper (501). The first screw (28) is threadedly connected to the connecting hole (30), and the second screw (29) is threadedly connected to the connecting hole (30). The device includes a cylindrical section (291) and a raised section (292). A transmission component (31) is rotatably connected to the cylindrical section (291). The transmission component (31) is fixedly connected to the second gripper (502). A toothed surface (32) is provided on the transmission component (31). The transmission gear (26) meshes with the toothed surface (32). A nut (33) is threadedly connected to the raised section (292). A toothed protrusion (34) is provided on the outer side of the nut (33). A limiting gear (35) is connected to the first screw (28). The head of the first screw (28) presses the limiting gear (35) against the mounting base (27). The toothed protrusion (34) meshes with the limiting gear (35).

9. A weeding machine with switchable posture according to claim 8, characterized in that: The second screw (29) also includes a protruding head (293) and a cross-section (294). The two ends of the cross-section (294) are connected to the cylindrical section (291) and the protruding section (292) respectively. The cylindrical section (291) is connected to the protruding head (293). The mounting base (27) is provided with a shaped hole (36). The cross-section (294) and the shaped hole (36) are adapted to each other.

10. A weeding machine with switchable posture according to claim 8 or 9, characterized in that: The transmission component (31) includes a sector-shaped portion (37) and an extension portion (38). The extension portion (38) is rotatably connected to the cylindrical section (291). The extension portion (38) is fixedly connected to the second gripper (502). The toothed surface (32) is located on the side of the sector-shaped portion (37) and is close to the edge of the sector-shaped portion (37).

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