Weeding mechanism and weeding equipment thereof

Abstract

The utility model relates to a weeding mechanism and weeding equipment thereof, the weeding mechanism comprises a rotating roller and at least two cutting units, and the cutting units are spirally arranged along the axial direction of the rotating roller and are fixed on the circumferential surface of the rotating roller; the cutting unit comprises a plurality of cutting pieces, each cutting piece comprises telescopic seats and a cutting knife which are symmetrically arranged on the rotating roller, and the cutting knife is movably installed between the two telescopic seats; when the rotating roller rotates, the cutting knife can extend or retract in the radial direction of the rotating roller through the two telescopic seats, and the problem that when an existing weeding mechanism touches hard objects such as stones and tree roots, the knife is prone to being broken is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of weeding equipment, in particular to a weeding mechanism and weeding equipment thereof. Background Art

[0002] During the planting process of crops, a large number of weeds will grow in the fields, so it is necessary to remove the weeds in time to ensure that the crops are adequately nourished and that the crops grow. Currently, there are three ways of weeding: manual weeding, weeding with herbicides and weeding with weeding equipment. Although the use of herbicides for weeding is effective, the residual herbicide components in the soil will pollute the environment; manual weeding is time-consuming and labor-intensive, and inefficient; although weeding with weeding equipment has the characteristics of high efficiency, there are areas for improvement. For example, a new type of weeding equipment with Chinese patent publication number CN218649293U includes a main body, a weeding mechanism and an auxiliary mechanism, wherein the weeding mechanism is located at the front end of the main body, and the auxiliary mechanism is located at the upper end of the weeding mechanism. The main body includes a box, an extension rod, a universal wheel, a foot brake and a push rod, wherein the extension rod is fixedly mounted at the lower end of the box, and the universal wheel is fixedly mounted at the bottom of the box. The lower end of the extension rod, the foot brake is fixedly installed on the upper end of the universal wheel, the push rod is located above the foot brake, and the push rod is located at the rear end of the box; although the patent can be adjusted according to the height of the grass and the height to be cut to prevent the need to replace different machines due to different grass heights, one of the most prominent problems of this patent when weeding is that it is inevitable to encounter hard objects such as stones and tree roots on the ground during the weeding process. However, when encountering hard objects, due to excessive impact force, the weeding blade is firmly fixed on the rotating shaft, and the blade is prone to cracking or breaking. After the blade cracks, sharp fragments may splash out, causing the weeding blade or tool to crack and be damaged, and even pose a threat to the operator and the surrounding environment, posing a safety hazard. Utility Model Content

[0003] One purpose of the utility model is to provide a weeding mechanism to solve the problem that the existing weeding mechanism is easy to break when encountering hard objects such as stones and tree roots; the second purpose is to provide a weeding equipment.

[0004] In order to achieve the above purpose, on the one hand, the technical solution adopted by the utility model is as follows:

[0005] A weeding mechanism comprises a rotating roller and at least two cutting units, wherein each of the cutting units is arranged spirally along the axial direction of the rotating roller and fixed on the circumference of the rotating roller;

[0006] The cutting unit comprises a plurality of cutting pieces, each of which comprises a telescopic seat and a cutting knife symmetrically arranged on a rotating roller, and the cutting knife is movably installed between two telescopic seats; when the rotating roller rotates, the cutting knife can be extended or shortened along the radial direction of the rotating roller through the two telescopic seats.

[0007] Furthermore, the telescopic seat includes a mounting seat, a sliding seat and a first spring. The mounting seat is provided with a sliding groove on one side of the sliding seat. The end of the sliding seat away from the cutting knife extends into the sliding groove and is slidably connected to the mounting seat. The first spring is arranged in the sliding groove.

[0008] According to the above technical scheme, the mounting seat is fixed on the roller and serves as a supporting structure for the slide seat and the first spring. The slide groove is opened on the side of the mounting seat facing the slide seat, providing a sliding track for the slide seat. One end of the slide seat extends into the slide groove to form a sliding connection with the mounting seat, so that the slide seat can slide freely in the slide groove along the radial direction of the roller; when the roller rotates and drives the cutting unit forward, when the cutting knife encounters soft objects such as weeds, it will overcome the elastic force of the first spring and extend outward to cut the weeds. When the cutting knife encounters hard objects such as stones and tree roots, the resistance of the hard object is greater than the combined force of the cutting knife and the spring, and the cutting knife cannot continue to extend outward, but begins to retract under the reaction force of the hard object. At this time, the slide seat slides inward along the slide groove under the elastic force of the spring, driving the cutting knife to retract together, thereby avoiding the hard object. The introduction of the first spring significantly enhances the buffering effect of the telescopic seat. The spring can absorb and disperse the impact force from the hard object, reduce the impact load on the cutting knife, and further prevent the occurrence of knife collapse.

[0009] Furthermore, the number of the cutting units is two, and the two cutting units are respectively distributed along a first path and a second path, and the first path and the second path are respectively distributed along the axial spiral of the roller;

[0010] The first path and the second path have the same rotation direction, and an interval between the first path and the second path is 135 degrees or 180 degrees.

[0011] According to the above technical solution, two cutting units working simultaneously can cover a wider weeding area, significantly improving the weeding efficiency. When distributed along the spiral path, it can ensure that in each rotation of the roller, a cutting unit is performing effective weeding operations, reducing idling time, helping to more thoroughly cut off the roots of weeds, reducing the possibility of weed regeneration, and enhancing the weeding effect.

[0012] Furthermore, the cutting knife includes a first bending blade, a second bending blade and a straight blade, and the straight blade is located between the first bending blade and the second bending blade.

[0013] Furthermore, the first bending blade and the second bending blade are bent towards sides away from each other respectively;

[0014] Buffer pads are provided between the first bending blade and the straight blade, and between the straight blade and the second bending blade.

[0015] According to the above technical solution, the first bent blade and the second bent blade are bent in a form that can disperse the impact force during the cutting process and reduce the direct impact on the blade itself. At the same time, due to the bending design, the blade is less likely to break when subjected to lateral force, thereby improving the durability of the cutting knife. The tool mainly relies on the high speed and impact of the blade to crush weeds. The swinging blade structure can absorb a certain impact capacity and overload protection, which can increase the life of the tool and reduce energy consumption. During weeding operations, the blade is subjected to the resistance and inertia force of the weed stubble. The speed of the cutting knife can be decomposed into two parts, one is the cutting speed of the weeds, and the other is the sliding speed of the weeds. Compared with the existing technology, the weeding effect is better.

[0016] Furthermore, the cutting member also includes a connecting member, which passes through the cutting knife and the two sliding seats, and the cutting knife is rotatably installed between the two sliding seats through the connecting member.

[0017] According to the above technical solution, the connecting piece is used to connect the cutting knife and the sliding seat.

[0018] On the other hand, the utility model also proposes a weeding device, including a body and a driving assembly, wherein the driving assembly is installed on the body, and also includes a weeding mechanism as mentioned above, wherein the weeding mechanism is installed at the bottom of the body, and the driving assembly drives the weeding mechanism to work.

[0019] Furthermore, the machine body includes a casing body, a suspension structure and a covering structure;

[0020] Along the running direction of the weeding equipment, the suspension structure is located in front of the casing body, and the soil covering structure is located behind the casing body.

[0021] According to the above technical scheme, the suspension structure of the utility model serves as a connecting bridge between the weeding equipment and the tractor. When weeding operations are required, the suspension structure of the weeding equipment will be installed at the rear of the tractor or a specific position. After the weeding mechanism completes cutting, the covering structure can cover the cut weeds or soil, which helps to keep the surface clean and the soil fertile.

[0022] Furthermore, the driving assembly includes a gearbox, a first pulley and a second pulley connected to the casing body, the first pulley and the second pulley are connected by a belt, a universal joint drive shaft is connected between the gearbox and the first pulley, and the second pulley is coaxially connected to the roller.

[0023] According to the above technical solution, the tractor and the gearbox are connected through a universal joint drive shaft. The gearbox drives the first pulley to rotate through the universal joint drive shaft, and then drives the second pulley to rotate through a belt. Finally, the power of the gearbox's second pulley is transmitted to the roller. The roller is coaxially connected to the second pulley and is responsible for rotating under power drive to cut weeds.

[0024] Furthermore, it also includes a tensioning structure, which includes an L-shaped rod and a mounting block, the turning point of the L-shaped rod is rotatably connected to the casing body, one end of the L-shaped rod is connected to a tensioning roller, and the tensioning roller is rollingly connected to the belt; the other end of the L-shaped rod is movably connected to a connecting rod, the connecting rod passes through the mounting block and is threadedly connected to a bolt at the end, a second spring is sleeved between the bolt and the mounting block, and the second spring has a tendency to drive the bolt and the mounting block away from each other.

[0025] According to the above technical solution, the turning point of the L-shaped rod is rotatably connected to the casing body, so that the L-shaped rod can rotate around this point. The tensioning roller is connected to one end of the L-shaped rod and is rollingly connected to the belt. When the L-shaped rod rotates, the tensioning roller will move along the belt, thereby changing the tensioning degree of the belt. The second spring has a tendency to drive the bolt and the mounting block away from each other, so that when there is no external force, the second spring will maintain a certain tension, so that the tensioning roller applies tensioning force to the belt through the connecting rod and the L-shaped rod, which helps to maintain a constant tension state of the belt and ensure the stability and efficiency of power transmission.

[0026] Beneficial effects of the utility model:

[0027] When the rotating roller of the utility model starts to rotate, it drives the cutting unit fixed on the circumferential surface of the rotating roller to rotate together, each cutting unit includes a plurality of cutting pieces, each cutting piece is composed of two telescopic seats symmetrically arranged on the rotating roller and a cutting knife movably installed between the two telescopic seats; as the rotating roller rotates, when the cutting knife encounters weeds, due to the centrifugal force generated by the rotation and / or the weight of the cutting knife itself, the cutting knife will extend outward along the radial direction of the rotating roller to cut the weeds; and when the cutting knife encounters hard objects such as stones and tree roots, due to the resistance of the hard objects, the cutting knife will be subjected to a reverse force, causing it to shorten inward along the telescopic seat, thereby achieving automatic avoidance, avoiding direct collision with the hard objects, protecting the cutting knife, and avoiding knife collapse.

[0028] The first bent blade and the second bent blade of the utility model are bent in a form that can disperse the impact force during the cutting process and reduce the direct impact on the blade itself. At the same time, due to the bending design, the blade is less likely to break when subjected to lateral force, thereby improving the durability of the cutting knife. The tool mainly relies on the high speed and impact of the blade to crush weeds. The swinging blade structure can absorb a certain impact capacity and overload protection, which can increase the life of the tool and reduce energy consumption. During weeding operations, the blade is subjected to the resistance and inertia force of the weed stubble. The speed of the cutting knife can be decomposed into two parts, one is the cutting speed of the weeds, and the other is the sliding speed of the weeds. Compared with the prior art, the weeding effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the weeding mechanism and weeding equipment of the utility model in one direction;

[0030] Figure 2 It is a partial structural schematic diagram of the weeding mechanism of the utility model;

[0031] Figure 3 It is a schematic diagram of the roller part of the weeding mechanism of the utility model;

[0032] Figure 4 It is a schematic diagram of the overall structure of the cutting piece of the utility model;

[0033] Figure 5 It is a schematic diagram of the exploded structure of the cutting piece of the utility model;

[0034] Figure 6 It is a schematic diagram of the overall structure of the weeding mechanism and weeding equipment of the utility model from another direction;

[0035] Figure 7 For the utility model Figure 6 Schematic diagram of the structure of part A.

[0036] Among them, the first path a, the second path b, the rotating roller 1, the cutting piece 2, the telescopic seat 21, the mounting seat 211, the slide groove 2111, the slide seat 212, the cutting knife 22, the first bending blade 221, the second bending blade 222, the straight blade 223, the buffer pad 23, the body 3, the casing body 31, the suspension structure 32, the covering structure 33, the driving assembly 4, the gearbox 41, the first pulley 42, the second pulley 43, the universal joint drive shaft 44, the tensioning structure 5, the L-shaped rod 51, the mounting block 52, the tensioning roller 53, the connecting rod 54, and the second spring 55. DETAILED DESCRIPTION

[0037] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0039] On the one hand, this embodiment provides a weeding mechanism, such as Figure 1 , Figure 2 and Figure 3 As shown, it comprises a roller 1 and at least two cutting units, each cutting unit is arranged spirally along the axial direction of the roller 1 and fixed on the outer peripheral surface of the roller 1; wherein the cutting unit comprises a plurality of cutting pieces 2;

[0040] like Figure 2 and Figure 3 As shown, there are two cutting units, which are respectively distributed along a first path a and a second path b, and the first path a and the second path b are respectively distributed along the axial direction of the roller 1 in a spiral manner;

[0041] The first path a and the second path b have the same rotation direction, and the interval between the first path a and the second path b is 135 degrees or 180 degrees; as an exemplary embodiment, Figure 3As shown, the rotational interval between the first path a and the second path b in this embodiment is 180 degrees. In this embodiment, two or more cutting units are arranged in a spiral manner, so that a wider weeding area can be covered when the weeding equipment is working, which significantly improves the weeding efficiency. When distributed along the spiral path, it can ensure that in each rotation of the roller 1, there are cutting units that perform effective weeding operations, reducing the idling time, helping to cut off the roots of weeds more thoroughly, reducing the possibility of weed regeneration, and enhancing the weeding effect. In this embodiment, a reasonable path interval (135 degrees or 180 degrees) is used to ensure that the gap between the two cutting units is effectively filled during the rotation of the roller 1, and both densely weeded areas and sparsely weeded areas can be uniformly weeded, reducing the occurrence of missed weeding; at the same time, the two cutting units are distributed along different paths but with the same rotational direction, which helps to balance the force when the roller 1 rotates, and prolong the service life of the roller 1 and the cutting unit.

[0042] The cutting member 2 includes a telescopic seat 21 and a cutting blade 22 symmetrically arranged on the roller 1. The cutting blade 22 is movably installed between the two telescopic seats 21. When the roller 1 rotates, the cutting blade 22 can extend or shorten along the radial direction of the roller 1 through the two telescopic seats 21. Specifically, Figure 4 and Figure 5 As shown, the cutting blade 22 includes a first bending blade 221 , a second bending blade 222 and a straight blade 223 , and the straight blade 223 is located between the first bending blade 221 and the second bending blade 222 . Among them, the first bent blade 221 and the second bent blade 222 are bent to the sides away from each other respectively; since the first bent blade 221 and the second bent blade 222 are in a bent form, they can disperse the impact force during the cutting process and reduce the direct impact on the cutting knife 22 itself. At the same time, due to the bending design, it is less likely to break when subjected to lateral force, thereby improving the durability of the cutting knife 22. The cutting knife 22 mainly relies on high speed and impact to crush weeds. When the roller 1 rotates, the cutting knife 22 can swing, and can absorb a certain impact capacity and overload protection during the swinging process, which can increase the tool life and reduce energy consumption. During weeding operations, under the action of the resistance and inertia of the weed stubble, the speed of the cutting knife 22 can be decomposed into two parts, one is the cutting speed of the weeds, and the other is the sliding speed of the weeds. Compared with the prior art, the weeding effect is better.

[0043] like Figure 4 and Figure 5As shown, a buffer pad 23 is provided between the first bending blade 221 and the straight blade 223, and between the straight blade 223 and the second bending blade 222. By providing the buffer pad 23 between the straight blade 223 and the bending blade, a buffering effect can be played during the cutting process, further reducing direct collision and wear between adjacent blades, and the buffer pad 23 can absorb part of the impact force and extend the service life of the blade.

[0044] As a preferred embodiment, Figure 4 and Figure 5 As shown, the telescopic seat 21 includes a mounting seat 211, a slide seat 212 and a first spring (not shown). The mounting seat 211 is provided with a slide groove 2111 on one side facing the slide seat 212. One end of the slide seat 212 away from the cutting knife 22 extends into the slide groove 2111 and is slidably connected with the mounting seat 211. The first spring is arranged in the slide groove 2111. According to the above technical solution, the mounting seat 211 is fixed on the roller 1 as a supporting structure for the slide seat 212 and the first spring. The slide groove 2111 is provided on one side of the mounting seat 211 facing the slide seat 212, providing a sliding track for the slide seat 212. One end of the slide seat 212 extends into the slide groove 2111 and forms a sliding connection with the mounting seat 211, so that the slide seat 212 can slide freely in the slide groove 2111 along the radial direction of the roller 1. When the roller 1 rotates and drives the cutting unit forward, when the cutting knife 22 encounters soft objects such as weeds, it will overcome the elastic force of the first spring and extend outward to cut the weeds. When the cutting blade 22 encounters a hard object such as a stone or a tree root, the resistance of the hard object is greater than the combined force of the cutting blade 22 and the first spring, so the cutting blade 22 cannot continue to extend outward, but begins to retract under the reaction force of the hard object. At this time, the sliding seat 212 slides inward along the sliding groove 2111 under the elastic force of the spring, driving the cutting blade 22 to retract together, thereby avoiding the hard object. The introduction of the first spring significantly enhances the buffering effect of the telescopic seat 21. The spring can absorb and disperse the impact force from the hard object, reduce the impact load on the cutting blade 22, and further prevent the occurrence of blade collapse. The sliding connection structure between the sliding seat 212 and the mounting seat 211 makes the cutting blade 22 more stable during the telescopic process, and the sliding groove 2111 provides a clear sliding path for the sliding seat 212, preventing the sliding seat 212 from deflecting or shaking during the telescopic process.

[0045] Furthermore, the cutting member 2 further comprises a connecting member (not shown), which passes through the cutting blade 22 and the two slide seats 212, and the cutting blade 22 is rotatably mounted between the two slide seats 212 through the connecting member. In this embodiment, the connecting member is preferably a pin, and the connecting member is used to connect the cutting blade 22 and the slide seat 212.

[0046] On the other hand, the utility model also provides a weeding device, such as Figure 1 and Figure 7As shown, it includes a body 3 and a driving assembly 4, wherein the driving assembly 4 is mounted on the body 3, and also includes the aforementioned weeding mechanism, which is mounted at the bottom of the body 3, and the driving assembly 4 drives the weeding mechanism to work.

[0047] Furthermore, if Figure 6 As shown, the machine body 3 includes a casing body 31, a suspension structure 32 and a soil covering structure 33; along the running direction of the weeding equipment (as an example, Figure 6 The suspension structure 32 is located in front of the housing body 31 ( Figure 6 The covering structure 33 is located at the rear of the casing body 31 ( Figure 6 The suspension structure 32 of this embodiment serves as a connecting bridge between the weeding device and the tractor. When weeding is required, the suspension structure 32 of the weeding device will be installed at the rear or a specific position of the tractor and driven by the tractor. After the weeding mechanism completes the cutting, the covering structure 33 can cover the cut weeds or soil, which helps to keep the surface clean and the soil fertile.

[0048] As a preferred embodiment, Figure 6 As shown, the driving assembly 4 includes a gearbox 41, a first pulley 42 and a second pulley 43 connected to the housing body 31, the first pulley 42 and the second pulley 43 are connected by a belt, a universal joint transmission shaft 44 is connected between the gearbox 41 and the first pulley 42, and the second pulley 43 is coaxially connected to the roller 1. The tractor is connected to the gearbox 41 through the universal joint transmission shaft 44, the gearbox 41 drives the first pulley 42 to rotate through the universal joint transmission shaft 44, and then drives the second pulley 43 to rotate through the belt, and finally transmits the power of the gearbox 41 to the roller 1 through the second pulley 43, and the roller 1 is coaxially connected to the second pulley 43 and is responsible for rotating under power drive to cut weeds.

[0049] As a preferred embodiment, Figure 7 As shown, this embodiment also includes a tensioning structure 5, which includes an L-shaped rod 51 and a mounting block 52. The turning point of the L-shaped rod 51 is rotatably connected to the casing body 31, and one end of the L-shaped rod 51 is connected to a tensioning roller 53, which is rollingly connected to the belt; the other end of the L-shaped rod 51 is movably connected to a connecting rod 54, which passes through the mounting block 52 and is threadedly connected to a bolt at the end, and a second spring 55 is sleeved between the bolt and the mounting block 52, and the second spring 55 has a tendency to drive the bolt and the mounting block 52 to move away from each other.

[0050] According to the above technical solution, the turning point of the L-shaped rod 51 is rotatably connected to the casing body 31, so that the L-shaped rod 51 can rotate around this point. The tensioning roller 53 is connected to one end of the L-shaped rod 51 and is rollingly connected to the belt. When the L-shaped rod 51 rotates, the tensioning roller 53 moves along the belt, thereby changing the tensioning degree of the belt. The second spring 55 has a tendency to drive the bolt and the mounting block 52 away from each other, so that when there is no external force, the second spring 55 maintains a certain tension, thereby making the tensioning roller 53 apply tensioning force to the belt through the connecting rod 54 and the L-shaped rod 51, which helps to maintain a constant tension state of the belt and ensure the stability and efficiency of power transmission.

[0051] In this embodiment, the cutting member 2 is composed of two telescopic seats 21 symmetrically arranged on the roller 1 and a cutting knife 22 movably installed between the two telescopic seats 21; as the roller 1 rotates, when the cutting knife 22 encounters weeds, due to the centrifugal force generated by the rotation and / or the weight of the cutting knife 22 itself, the cutting knife 22 will extend outward along the radial direction of the roller 1 to cut the weeds; and when the cutting knife 22 encounters hard objects such as stones and tree roots, due to the resistance of the hard objects, the cutting knife 22 will be subjected to a reverse force, causing it to shorten inward along the telescopic seat 21, thereby achieving automatic avoidance, avoiding direct collision with the hard objects, protecting the cutting knife 22, and avoiding chipping; at the same time, the first bent blade 221 and the second bent blade 222 are bent in a form that can disperse the impact force during the cutting process, reduce the direct impact on the blade itself, and solve the problem that the existing weeding mechanism is prone to chipping when encountering hard objects such as stones and tree roots, and has a compact structure and strong practicality.

[0052] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A weeding mechanism, characterized in that: include: A rotating roller (1) and at least two cutting units, each of the cutting units being arranged spirally along the axial direction of the rotating roller (1) and fixed on the circumference of the rotating roller (1); The cutting unit comprises a plurality of cutting members (2), each of the cutting members (2) comprising a telescopic seat (21) and a cutting knife (22) symmetrically arranged on a rotating roller (1), the cutting knife (22) being movably mounted between two of the telescopic seats (21); when the rotating roller (1) rotates, the cutting knife (22) can extend or shorten along the radial direction of the rotating roller (1) via the two telescopic seats (21).

2. The weeding mechanism according to claim 1, characterized in that: The telescopic seat (21) comprises a mounting seat (211), a sliding seat (212) and a first spring; a sliding groove (2111) is provided on a side of the mounting seat (211) facing the sliding seat (212); an end of the sliding seat (212) facing away from the cutting knife (22) extends into the sliding groove (2111) and is slidably connected to the mounting seat (211); and the first spring is arranged in the sliding groove (2111).

3. The weeding mechanism according to claim 2, characterized in that: The number of the cutting units is two, and the two cutting units are respectively distributed along a first path (a) and a second path (b), and the first path (a) and the second path (b) are respectively distributed along the axial spiral of the rotating roller (1); The first path (a) and the second path (b) have the same rotation direction, and the interval between the first path (a) and the second path (b) is 135 degrees or 180 degrees.

4. The weeding mechanism according to claim 2, characterized in that: The cutting knife (22) comprises a first bending blade (221), a second bending blade (222) and a straight blade (223); the straight blade (223) is located between the first bending blade (221) and the second bending blade (222).

5. The weeding mechanism according to claim 4, characterized in that: The first bending blade (221) and the second bending blade (222) are bent towards sides facing away from each other respectively; A buffer pad (23) is provided between the first bending blade (221) and the straight blade (223), and between the straight blade (223) and the second bending blade (222).

6. The weeding mechanism according to claim 4, characterized in that: The cutting member (2) further comprises a connecting member, wherein the connecting member passes through the cutting knife (22) and the two slide seats (212), and the cutting knife (22) is rotatably mounted between the two slide seats (212) via the connecting member.

7. A weeding device, comprising a body (3) and a drive assembly (4), wherein the drive assembly (4) is mounted on the body (3), characterized in that: It also comprises a weeding mechanism as claimed in any one of claims 1 to 6, wherein the weeding mechanism is mounted at the bottom of the machine body (3), and the driving assembly (4) drives the weeding mechanism to work.

8. The weeding device according to claim 7, characterized in that: The machine body (3) comprises a casing body (31), a suspension structure (32) and a covering structure (33); Along the running direction of the weeding equipment, the suspension structure (32) is located in front of the casing body (31), and the soil covering structure (33) is located behind the casing body (31).

9. The weeding device according to claim 8, characterized in that: The driving assembly (4) comprises a gearbox (41), a first pulley (42) and a second pulley (43) connected to the housing body (31); the first pulley (42) and the second pulley (43) are connected via a belt; a universal joint transmission shaft (44) is connected between the gearbox (41) and the first pulley (42); and the second pulley (43) is coaxially connected to the roller (1).

10. The weeding device according to claim 9, characterized in that: The invention also comprises a tensioning structure (5), wherein the tensioning structure (5) comprises an L-shaped rod (51) and a mounting block (52), wherein the turning point of the L-shaped rod (51) is rotatably connected to the housing body (31), one end of the L-shaped rod (51) is connected to a tensioning roller (53), and the tensioning roller (53) is rollingly connected to the belt; the other end of the L-shaped rod (51) is movably connected to a connecting rod (54), the connecting rod (54) passes through the mounting block (52) and is threadedly connected to a bolt at the end thereof, a second spring (55) is sleeved between the bolt and the mounting block (52), and the second spring (55) has a tendency to drive the bolt and the mounting block (52) to move away from each other.

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