Weeding device facilitating head replacement

Abstract

The utility model relates to the technical field of traditional Chinese medicinal material planting, and discloses a weeding device convenient for head replacement, which comprises a bottom plate, the upper surface of the bottom plate is provided with a lifting plate, the upper surface of the lifting plate is fixedly connected with a driving device, the lower side of the lifting plate is provided with a connecting box, the lower surface of the connecting box is provided with a butt-joint groove, and the butt-joint groove is fixedly connected with the driving device. A rotating cutter is arranged on the lower side of the bottom plate, a mounting shaft is fixedly connected to the upper surface of the rotating cutter, a movable groove is formed in the bottom plate, and the mounting shaft and the rotating cutter can be automatically fixed under the cooperation of a first spring and a trapezoidal block by pushing a butt joint block into the butt joint groove; and during disassembly, only the interface of the two-way threaded rod needs to be rotated to drive the trapezoidal block to be separated from the clamping groove, a professional tool is not needed, operation is easy, the disassembly and assembly efficiency is high, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of Chinese medicinal herb cultivation technology, specifically a weeding device that facilitates head replacement. Background Technology

[0002] Drugs that are collected, processed, and prepared according to the guidance of traditional Chinese medicine theory, explain their mechanism of action, and guide their clinical application are collectively referred to as Chinese medicine. Chinese medicine mainly originated in China, and there are many kinds of Chinese medicinal materials with wide sources. Each kind of medicinal material has a variety of chemical components.

[0003] Before planting medicinal herbs, weeds grow rapidly and compete with them for nutrients, water, and sunlight in the soil. Weeds also serve as intermediate hosts and breeding grounds for many pests and diseases, and may even spread viral diseases. Therefore, weeding devices are usually used to remove weeds. However, after prolonged use, the rotating blades of some existing weeding devices experience frequent friction between the nylon rope and weeds, the ground, and other objects it may come into contact with during high-speed operation. As the usage time increases, the fibers on the surface of the nylon rope gradually wear off and fall off, causing the nylon rope to become thinner. When the diameter of the nylon rope decreases to a certain extent, its strength will be greatly reduced, making it prone to breakage. This significantly affects the efficiency of subsequent weeding and makes it difficult to plant medicinal herbs. The existing method of replacing the blades usually involves bolt fixing, which requires tools and is cumbersome to disassemble. This results in low efficiency in replacing the blades, poor practicality, and low convenience. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a weeding device with an easy-to-change head, so as to solve the problem that the replacement of the blade head is inconvenient in some existing weeding devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weeding device that facilitates head replacement, comprising a base plate, a lifting plate on the upper surface of the base plate, a driving device fixedly connected to the upper surface of the lifting plate, a connecting box on the lower side of the lifting plate, a docking groove on the lower surface of the connecting box, a rotating blade on the lower side of the base plate, an installation shaft fixedly connected to the upper surface of the rotating blade, a movable groove inside the base plate, the upper end of the installation shaft extending movably between the base plate and the lifting plate through the movable groove, a docking block fixedly connected to the upper end of the installation shaft, slots on both sides of the docking block, a cavity inside the connecting box communicating with the docking groove, two trapezoidal blocks inside the cavity extending into the docking groove and fitting with the slots, and a disassembly assembly inside the cavity.

[0006] Preferably, the disassembly assembly includes a bidirectional threaded rod, which is rotatably connected inside the cavity. Each of the two opposite threads of the bidirectional threaded rod is threaded with a connecting plate, and both connecting plates are slidably connected inside the cavity.

[0007] Preferably, connecting blocks are fixedly connected to the surfaces of both connecting plates, and the connecting blocks are flush with the inner wall of the mating groove.

[0008] Preferably, the connecting block has a sliding groove inside, the trapezoidal block is slidably connected inside the sliding groove, and a first spring is fixedly connected between the trapezoidal block and the inner wall of the sliding groove.

[0009] Preferably, a drive rod is fixedly connected to the right end of the bidirectional threaded rod, the right end of the drive rod rotatably passes through the interior of the connecting box, a handle is provided on the outside of the drive rod, a sliding chamber is opened inside the handle, and the drive rod moves through the interior of the sliding chamber.

[0010] Preferably, a synchronization plate is fixedly connected to one end of the drive rod located inside the sliding chamber. The synchronization plate is slidably connected inside the sliding chamber. A second spring is fixedly connected between the synchronization plate and the inner wall of the sliding chamber. The second spring is movably sleeved on the outside of the drive rod.

[0011] Preferably, a locking rod is fixedly connected to the surface of the grip, and a locking groove is provided on the surface of the connecting box, wherein the locking rod and the locking groove are compatible.

[0012] Preferably, an electric push rod is fixedly connected to the upper surface of the base plate, and the telescopic end of the electric push rod is fixedly connected to the lifting plate.

[0013] Compared with the prior art, this utility model provides a weeding device with an easy-to-change head, which has the following features:

[0014] Beneficial effects:

[0015] 1. This easy-to-replace weeding device automatically fixes the mounting shaft and rotating blade by pushing the connecting block into the connecting groove, with the cooperation of the first spring and the trapezoidal block. This greatly improves the installation efficiency of the blade head. When disassembling, simply rotate the bidirectional threaded rod interface to drive the trapezoidal block out of the slot. No special tools are required. The operation is simple, the disassembly and assembly efficiency is high, and the practicality is high.

[0016] 2. This easy-to-change weeding device ensures the stability of the bidirectional threaded rod through the cooperation between the handle, drive rod, synchronization plate, second spring and locking rod, thereby ensuring the stability of the rotating cutter installation and avoiding the situation of accidental rotation of the bidirectional threaded rod.

[0017] 3. This weeding device, which facilitates head replacement, allows for easy adjustment of the height of the rotating blades via an electric push rod, thereby further enhancing the device's flexibility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the weeding device of this utility model, which facilitates head replacement;

[0019] Figure 2 This is a schematic diagram of the lower structure of the lifting plate of this utility model;

[0020] Figure 3 This is a cross-sectional view of the connecting box of this utility model;

[0021] Figure 4 This is a cross-sectional view of the connecting block of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the bidirectional threaded rod of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0024] In the diagram: 1. Base plate; 2. Lifting plate; 3. Drive device; 4. Connecting box; 5. Docking groove; 6. Rotating cutter; 7. Mounting shaft; 8. Docking block; 9. Slot; 10. Cavity; 11. Trapezoidal block; 12. Bidirectional threaded rod; 13. Connecting plate; 14. Connecting block; 15. Sliding groove; 16. First spring; 17. Drive rod; 18. Handle; 19. Sliding chamber; 20. Synchronizing plate; 21. Second spring; 22. Locking rod; 23. Locking groove; 24. Electric push rod; 25. Movable groove. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6This utility model provides a technical solution: a weeding device that facilitates head replacement, including a base plate 1, a lifting plate 2 on the upper surface of the base plate 1, a drive device 3 fixedly connected to the upper surface of the lifting plate 2, a connecting box 4 on the lower side of the lifting plate 2, a docking groove 5 on the lower surface of the connecting box 4, a rotating blade 6 on the lower side of the base plate 1, an installation shaft 7 fixedly connected to the upper surface of the rotating blade 6, a movable groove 25 inside the base plate 1, the upper end of the installation shaft 7 extending movably between the base plate 1 and the lifting plate 2 through the movable groove 25, a docking block 8 fixedly connected to the upper end of the installation shaft 7, slots 9 on both sides of the docking block 8, a cavity 10 inside the connecting box 4, the cavity 10 communicating with the docking groove 5, two trapezoidal blocks 11 inside the cavity 10, the trapezoidal blocks 11 extending into the interior of the docking groove 5, the trapezoidal blocks 11 and the slots 9 being compatible, and a disassembly assembly inside the cavity 10.

[0027] The drive device 3 contains a drive motor, battery, controller, wires and other structures, all of which are existing technologies and will not be described in detail here. The output shaft of the drive motor rotates through the lower surface of the lifting plate 2 and is fixedly connected to the connecting box 4. When the drive device 3 is started, it will drive the connecting box 4 to rotate, thereby driving the mounting shaft 7 and the rotating blade 6 to rotate, thus achieving the purpose of weeding.

[0028] The disassembly assembly includes a bidirectional threaded rod 12, which is rotatably connected inside the cavity 10. Each of the two opposite threads of the bidirectional threaded rod 12 is threaded with a connecting plate 13, and both connecting plates 13 are slidably connected inside the cavity 10.

[0029] Connecting blocks 14 are fixedly connected to the surfaces of both connecting plates 13, and the connecting blocks 14 are flush with the inner wall of the mating groove 5.

[0030] The connecting block 14 has a sliding groove 15 inside, and the trapezoidal block 11 is slidably connected inside the sliding groove 15. A first spring 16 is fixedly connected between the trapezoidal block 11 and the inner wall of the sliding groove 15. When the mating block 8 and the inclined surface of the trapezoidal block 11 come into contact, the mating block 8 will force the two trapezoidal blocks 11 to move to both sides under the cooperation of the inclined surface, that is, slide inside the connecting block 14. At this time, the first spring 16 will deform.

[0031] In the above embodiment, when the device is running, the vibration generated by the device itself will not cause the trapezoidal block 11 to disengage from the inside of the slot 9 under the restriction of the first spring 16, thereby ensuring the stability of the mounting shaft 7 and the docking block 8.

[0032] The right end of the bidirectional threaded rod 12 is fixedly connected to a drive rod 17. The right end of the drive rod 17 rotates through the interior of the connecting box 4. A handle 18 is provided on the outside of the drive rod 17. A sliding chamber 19 is opened inside the handle 18. The drive rod 17 moves through the interior of the sliding chamber 19.

[0033] A synchronization plate 20 is fixedly connected to one end of the drive rod 17 located inside the sliding chamber 19. The synchronization plate 20 is slidably connected inside the sliding chamber 19. A second spring 21 is fixedly connected between the synchronization plate 20 and the inner wall of the sliding chamber 19. The second spring 21 is movably sleeved on the outside of the drive rod 17.

[0034] Several locking rods 22 are fixedly connected to the surface of the handle 18, and several locking grooves 23 are opened on the surface of the connecting box 4. The locking rods 22 and the locking grooves 23 are matched. Through the cooperation between the second spring 21, the locking rods 22 and the locking grooves 23, the stability of the bidirectional threaded rod 12 is effectively guaranteed, and the threaded rod is prevented from rotating due to equipment vibration, so that it always remains stationary.

[0035] In the above embodiment, the vibration generated by the operation of the device and the rotation of the connecting box 4 will not cause the locking rod 22 to disengage from the locking groove 23 under the restriction of the second spring 21, thereby ensuring the stability of the handle 18, the drive rod 17 and the bidirectional threaded rod 12.

[0036] An electric push rod 24 is fixedly connected to the upper surface of the base plate 1. The telescopic end of the electric push rod 24 is fixedly connected to the lifting plate 2. The setting of the electric push rod 24 facilitates the adjustment of the height of the rotating cutter 6.

[0037] Working principle:

[0038] When using this easy-to-change weeding device, if the rotating blade 6 needs to be replaced, by pulling the handle 18 outward, the locking rod 22 will disengage from the locking groove 23, and the second spring 21 will deform. The synchronizing plate 20 will slide inside the sliding chamber 19. Then, by rotating the handle 18, the drive rod 17 will be rotated under the restriction of the synchronizing plate 20. The rotation of the drive rod 17 will drive the rotation of the bidirectional threaded rod 12. The rotation of the bidirectional threaded rod 12 will drive the movement of the connecting plate 13. The movement of the connecting plate 13 will drive the movement of the connecting block 14. At this time, the connecting block 14 will slide into the cavity 10. The movement of the connecting block 14 will drive the movement of the trapezoidal block 11, and finally the trapezoidal block 11 will disengage from the slot 9. Then, the mounting shaft 7 and the rotating blade 6 can be disassembled.

[0039] After disassembly is complete, the bidirectional threaded rod 12 and the connecting block 14 can be reset.

[0040] During installation, simply align the mating block 8 and the mating groove 5 and slide the mating block 8 into the interior of the mating groove 5. Subsequently, the mating block 8 will abut against the inclined surface of the trapezoidal block 11, forcing the two trapezoidal blocks 11 to move to both sides. At this time, the trapezoidal blocks 11 will slide inside the sliding groove 15, and the first spring 16 will deform. The connecting block 14 will not move under the restriction of the bidirectional threaded rod 12. After the slot 9 and the trapezoidal block 11 are aligned, the trapezoidal block 11 can be inserted into the slot 9 by means of the elastic force of the first spring 16, thereby realizing the installation of the rotating tool 6.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weeding device with easy head replacement, comprising a base plate (1), characterized in that: A lifting plate (2) is provided on the upper surface of the base plate (1). A driving device (3) is fixedly connected to the upper surface of the lifting plate (2). A connecting box (4) is provided on the lower side of the lifting plate (2). A docking groove (5) is provided on the lower surface of the connecting box (4). A rotating cutter (6) is provided on the lower side of the base plate (1). An installation shaft (7) is fixedly connected to the upper surface of the rotating cutter (6). A movable groove (25) is provided inside the base plate (1). The upper end of the installation shaft (7) extends movably to the base plate through the movable groove (25). Between (1) and the lifting plate (2), the upper end of the mounting shaft (7) is fixedly connected to a docking block (8). Both sides of the docking block (8) are provided with slots (9). The inside of the connecting box (4) is provided with a cavity (10). The cavity (10) is connected to the docking groove (5). Two trapezoidal blocks (11) are provided inside the cavity (10). The trapezoidal blocks (11) extend into the inside of the docking groove (5). The trapezoidal blocks (11) and the slots (9) are compatible. The disassembly assembly is provided inside the cavity (10).

2. The weeding device with easy head replacement according to claim 1, characterized in that: The disassembly assembly includes a bidirectional threaded rod (12), which is rotatably connected inside the cavity (10). The two opposite threads of the bidirectional threaded rod (12) are threaded with connecting plates (13), and the two connecting plates (13) are slidably connected inside the cavity (10).

3. The weeding device with easy head replacement according to claim 2, characterized in that: Both of the connecting plates (13) are fixedly connected to a connecting block (14), and the connecting block (14) is flush with the inner wall of the docking groove (5).

4. The weeding device with easy head replacement according to claim 3, characterized in that: The connecting block (14) has a sliding groove (15) inside, the trapezoidal block (11) is slidably connected inside the sliding groove (15), and a first spring (16) is fixedly connected between the trapezoidal block (11) and the inner wall of the sliding groove (15).

5. The weeding device with easy head replacement according to claim 2, characterized in that: The right end of the bidirectional threaded rod (12) is fixedly connected to a drive rod (17). The right end of the drive rod (17) rotates through the interior of the connecting box (4). A handle (18) is provided on the outside of the drive rod (17). A sliding chamber (19) is opened inside the handle (18). The drive rod (17) moves through the interior of the sliding chamber (19).

6. The weeding device with easy head replacement according to claim 5, characterized in that: The drive rod (17) is fixedly connected to a synchronization plate (20) at one end inside the sliding chamber (19). The synchronization plate (20) is slidably connected inside the sliding chamber (19). A second spring (21) is fixedly connected between the synchronization plate (20) and the inner wall of the sliding chamber (19). The second spring (21) is movably sleeved on the outside of the drive rod (17).

7. The weeding device with easy head replacement according to claim 5, characterized in that: A locking rod (22) is fixedly connected to the surface of the grip (18), and a locking groove (23) is provided on the surface of the connecting box (4). The locking rod (22) and the locking groove (23) are compatible.

8. The weeding device with easy head replacement according to claim 1, characterized in that: An electric push rod (24) is fixedly connected to the upper surface of the base plate (1), and the telescopic end of the electric push rod (24) is fixedly connected to the lifting plate (2).

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