Agricultural weeding device

Abstract

The present invention relates to the technical field of agricultural weeding, and specifically to an agricultural weeding device, comprising a weeder body, a mud guard installed at the front end of the weeder body, and a cutting disc installed inside the mud guard. A driving mechanism for driving the cutting disc is installed on one side of the weeder body, and also comprises: openings are arranged on both sides of the mud guard; anti-winding plates, a plurality of anti-winding plates are arranged, and the plurality of anti-winding plates are equidistantly distributed at the openings; this agricultural weeding device, under the drive of a state adjustment mechanism, keeps the plurality of anti-winding plates in a vertical state with the openings, and at the same time, the anti-winding plates are made of high-speed steel material and have a conical shape on both sides, so that they have a strong cutting strength, and then when the plurality of anti-winding plates swing and move close to each other, the weeds on the outside thereof are cut, thereby preventing the weeds from winding around the outside of the mud guard and affecting the cutting of the weeds by the cutting disc.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural weeding, in particular to an agricultural weeding device. Background Art

[0002] Agricultural weeding devices, also known as weeders or mowers, are mechanical equipment widely used in modern agriculture. They are mainly used to remove weeds in farmland to ensure the smooth growth of grain crops.

[0003] At present, the existing agricultural weeding devices mainly use mechanical cutting to remove weeds in farmland. They are usually composed of a rotating cutting disc or a cutting knife. When the weeder is running, the cutting disc or the blade rotates at high speed to remove the weeds by the roots. At the same time, a mud guard is installed on the outside of the cutting disc to block the mud generated during weeding. However, when the existing cutting disc is weeding, for long grass, the weeds are easily entangled on both sides of the mud guard when cutting, which not only affects the overall weeding of the weeding device, but also when there are more entangled weeds, they will be blocked at the entrance of the mud guard, affecting the cutting of the weeds by the cutting disc. Summary of the invention

[0004] The object of the present invention is to provide an agricultural weeding device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an agricultural weeding device, comprising a weeder body, a mud guard installed at the front end of the weeder body, and a cutting disc installed inside the mud guard, wherein a driving mechanism for driving the cutting disc is installed on one side of the weeder body, and further comprising:

[0006] Both sides of the mud guard are provided with openings;

[0007] An anti-winding plate, wherein a plurality of anti-winding plates are provided, and the plurality of anti-winding plates are equidistantly distributed at the opening, both sides of the anti-winding plate are in a cone shape, and the anti-winding plate is made of high-speed steel material;

[0008] A support shaft, the support shaft passes through the center of the anti-winding plate, a plurality of the support shafts are slidably connected to the bottom of the opening, and the bottom of the support shaft located at the center of the opening is rotatably connected to the opening;

[0009] The state adjustment mechanism is installed at the top of the mud guard opening, and the state adjustment mechanism drives multiple support shafts to make multiple anti-winding plates remove weeds entangled on the mud guard and between the mud guard and the cutting disc.

[0010] Wherein, the mud guard is provided with an adjustment port at the position corresponding to the state adjustment mechanism, and the adjustment port is located above the opening.

[0011] Wherein, the state adjustment mechanism comprises a telescopic connection piece connected to the tops of the plurality of support shafts at the opening, a protective shell is installed outside the adjustment opening, and the telescopic connection piece is located inside the protective shell;

[0012] A positioning sleeve, wherein a plurality of the positioning sleeves are provided, and the plurality of positioning sleeves are all located above the telescopic connector, and the positioning sleeves are fixedly sleeved on the top of the support shaft;

[0013] The swing mechanism is located at the adjustment port and is used to adjust the connection angles of the plurality of positioning sleeves. The state adjustment mechanism is provided to adjust the state between the plurality of anti-winding plates.

[0014] Wherein, the telescopic connecting member comprises a first connecting rod and a second connecting rod respectively connected to the outer side of the support shaft by sliding sleeves from bottom to top, the two ends of the first connecting rod are hinged to the two adjacent second connecting rods through a pin shaft, and the two ends of the second connecting rod are hinged to the two adjacent first connecting rods through a pin shaft;

[0015] A third connecting rod and a fourth connecting rod, wherein two third connecting rods and two fourth connecting rods are provided, and the third connecting rod and one fourth connecting rod form a group, and the two groups of the third connecting rod and the fourth connecting rod are respectively located at two ends of the adjustment port, and are rotatably connected to each other by connecting shafts, and the third connecting rod and the fourth connecting rod are hinged to the adjacent first connecting rod or the second connecting rod through a pin shaft;

[0016] A moving block, wherein two moving blocks are provided, and the two moving blocks are rotatably sleeved on the outsides of the two connecting shafts at both ends of the adjustment port;

[0017] The moving mechanism is installed inside the protective shell, and the moving mechanism is used to drive the two moving blocks, and through the telescopic connecting piece provided, the function of connecting multiple supporting shafts is realized.

[0018] Among them, the moving mechanism includes a bidirectional threaded rod rotatably connected to the inner side of the protective shell, and the two moving blocks are respectively threadedly sleeved on the two ends of the bidirectional threaded rod. A driving motor for driving the bidirectional threaded rod is installed on the protective shell, and the moving mechanism is provided to drive the moving block.

[0019] Among them, a limiting groove is provided at the bottom of the opening, and the bottoms of multiple support shafts are slidably connected to the limiting groove. Through the provided limiting groove, the supporting shaft is guided and limited, so that the movement of the supporting shaft is more stable.

[0020] Wherein, the swing mechanism comprises a swing plate fixedly connected to a plurality of positioning sleeves respectively, and a swing shaft is fixedly installed on the top of one end of the swing plate away from the positioning sleeve;

[0021] A swing frame is sleeved on the outer side between the plurality of swing shafts, and a swing member for driving the swing block is installed on the top of the adjustment port. The swing mechanism is provided to drive the angles of the plurality of anti-winding plates.

[0022] Among them, the swinging part includes a swinging motor fixedly installed on the top of the adjustment port, a rotating plate is fixedly installed on the output end of the swinging motor, a synchronous shaft is fixedly installed on the top of one end of the rotating plate, and the synchronous shaft is rotatably connected to the top of the swinging frame. Through the swinging part provided, the swinging of multiple swinging shafts is realized.

[0023] Wherein, one end of the swing frame located at the entrance of the mud guard is connected with a cutting piece, and the cutting piece is used to cut and remove the weeds entangled on the side of the entrance.

[0024] Wherein, the cutting piece includes a positioning shaft fixedly penetrating one end of the swing frame;

[0025] A limit frame is provided on the top of the positioning shaft, the limit frame is installed at the adjustment opening, and an arc opening is provided on the limit frame, and the positioning shaft is slidably connected with the arc opening;

[0026] A support plate is fixedly installed at the bottom of the positioning shaft, a support roller is fixedly installed at the bottom of the support plate, and a plurality of cutting blades are fixed around the outer side of the support roller, so that the weeds at the entrance of the mud guard can be cut and removed by the provided cutting piece.

[0027] The present invention has at least the following beneficial effects:

[0028] 1. When the present invention is in use, openings are provided on both sides of the mud guard, and a plurality of anti-winding plates are provided at the openings. The plurality of anti-winding plates are connected by a support shaft and a state adjustment mechanism. When there is no need to remove weeds, the plurality of anti-winding plates are kept parallel to the openings, and then form a closed state with the mud guard to achieve the mud blocking effect. When it is necessary to remove weeds on both sides of the mud guard, the plurality of anti-winding plates are driven by the state adjustment mechanism to keep the plurality of anti-winding plates perpendicular to the openings. At the same time, the anti-winding plates are made of high-speed steel material and have a conical shape on both sides, so that they have a strong cutting strength. When the plurality of anti-winding plates swing and move close to each other, the weeds on the outside thereof are cut, thereby preventing the weeds from being entangled on the outside of the mud guard and affecting the cutting of the weeds by the cutting disc.

[0029] 2. In the present invention, a certain distance is maintained between the inner side of the mud guard and the cutting disc, and the plurality of anti-winding plates can also cut the weeds on the inner side of the mud guard. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the side structure of the weeder body of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the weeder body of the present invention when viewed from above;

[0033] Figure 4 This is a schematic diagram of the structure of the mud guard of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the anti-winding plate of the present invention in a perpendicular state to the opening;

[0035] Figure 6 It is a schematic diagram of the state adjustment mechanism structure of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the swing mechanism of the present invention;

[0037] Figure 8 It is a schematic diagram of the swing frame structure of the present invention;

[0038] Fig. 9 This is a schematic diagram of the positioning sleeve structure of the present invention;

[0039] Fig.10 This is a schematic diagram of the support plate structure of the present invention;

[0040] Fig.11 This is a schematic diagram of the structure of the cutting blade of the present invention when viewed from above;

[0041] Fig.12 It is a schematic diagram of the top view of the anti-winding plate of the present invention.

[0042] In the figure: 1-lawner body; 2-mud guard; 21-opening; 211-limiting groove; 22-adjusting opening; 3-cutting disc; 4-driving mechanism; 5-anti-winding plate; 6-support shaft; 7-state adjustment mechanism; 71-telescopic connecting piece; 711-first connecting support rod; 712-second connecting support rod; 713-third connecting support rod; 714-fourth connecting support rod; 715-moving block; 72-protective shell; 73-positioning sleeve; 74-swinging mechanism; 741-swinging plate; 742-swinging shaft; 743-swinging frame; 8-moving mechanism; 81-bidirectional threaded rod; 82-driving motor; 9-swinging piece; 91-swinging motor; 92-rotating plate; 93-synchronizing shaft; 94-cutting piece; 941-positioning shaft; 942-limiting frame; 943-support plate; 944-support roller; 945-cutting blade. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0044] See also Figure 1-9 and Figure 11-12 An agricultural weeding device includes a weeder body 1, a mud guard 2 installed at the front end of the weeder body 1, a cutting disc 3 installed inside the mud guard 2, a driving mechanism 4 for driving the cutting disc 3 is installed on one side of the weeder body 1, and also includes:

[0045] Both sides of the mud guard 2 are provided with openings 21;

[0046] Anti-winding plate 5, there are multiple anti-winding plates 5, and multiple anti-winding plates 5 are equidistantly distributed at the opening 21, both sides of the anti-winding plate 5 are conical, and the anti-winding plate 5 is made of high-speed steel material, the anti-winding plate 5 is set in a conical shape on both sides, and is made of high-speed steel material, and high-speed steel is a tool material with good toughness, suitable for making high-quality tool knives. It is added with metal elements such as cobalt and tungsten, and has good wear resistance and impact resistance, so that multiple anti-winding plates 5 are single cutting tools, which can achieve the effect of cutting the weeds outside them;

[0047] The support shaft 6 runs through the center of the anti-winding plate 5, and the anti-winding plate 5 is fixedly connected to the fixed shaft, so that the anti-winding plate 5 is driven to rotate synchronously by the rotation of the support shaft 6, and the movement of the support shaft 6 drives the anti-winding plate 5 to move synchronously, and multiple support shafts 6 are slidably connected to the bottom of the opening 21, and the bottom of the support shaft 6 located at the center of the opening 21 is rotatably connected to the opening 21, and the support shaft 6 located at the center of the opening 21 is rotatably connected to the opening 21 by a bearing connection, so that the support shaft 6 at the center of the opening 21 can only rotate relative to the opening 21, but cannot move relative to the opening 21;

[0048] The state adjustment mechanism 7 is installed at the top of the opening 21 of the mud guard 2, and the state adjustment mechanism 7 drives the multiple support shafts 6 to make the multiple anti-winding plates 5 remove the weeds entangled with the mud guard 2 and between the mud guard 2 and the cutting disc 3;

[0049] The mud guard 2 is provided with an adjustment port 22 at a position corresponding to the state adjustment mechanism 7, and the adjustment port 22 is located above the opening 21. The state adjustment mechanism 7 includes a telescopic connection member 71 connected to the tops of the plurality of support shafts 6 at the opening 21. A protective shell 72 is installed outside the adjustment port 22, and the telescopic connection member 71 is located inside the protective shell 72.

[0050] A positioning sleeve 73, wherein a plurality of positioning sleeves 73 are provided, and the plurality of positioning sleeves 73 are all located above the telescopic connector 71, and the positioning sleeves 73 are fixedly sleeved on the top of the support shaft 6;

[0051] A swing mechanism 74, which is located at the adjustment opening 22 and is used to adjust the connection angles of the plurality of positioning sleeves 73;

[0052] The swing mechanism 74 includes a swing plate 741 fixedly connected to the plurality of positioning sleeves 73, and a swing shaft 742 is fixedly installed on the top of one end of the swing plate 741 away from the positioning sleeve 73;

[0053] A swing frame 743 is sleeved on the outer side between the plurality of swing shafts 742 , and a swing member 9 for driving the swing block is installed on the top of the adjustment port 22 .

[0054] The swing member 9 includes a swing motor 91 fixedly mounted on the top of the adjustment port 22, a rotating plate 92 fixedly mounted on the output end of the swing motor 91, a synchronous shaft 93 fixedly mounted on the top of one end of the rotating plate 92, and the synchronous shaft 93 is rotatably connected to the top of the swing frame 743;

[0055] Specific implementation process: When weeds are entangled on both sides of the mud guard 2 and block the cutting disc 3 from cutting the weeds, the swing motor 91 is operated to rotate the rotating plate 92. When the rotating plate 92 rotates, the swing frame 743 is driven to move a certain angle relative to the adjustment port 22 through the synchronous shaft 93. Since the swing frame 743 is limited by multiple swing shafts 742, when the swing frame 743 moves, it drives multiple swing shafts 742 inside it to move. When the swing shaft 742 moves, the positioning sleeve 73 is driven to move through the swing plate 741. The locating sleeve 73 is rotated, and the locating sleeve 73 is rotated under the limiting effect of the support shaft 6. When the locating sleeve 73 rotates, the support shaft 6 rotates synchronously until the swing frame 743 stops rotating. Then, the support shaft 6 rotates 90 degrees, so that the plurality of anti-winding plates 5 at the opening 21 form a vertical state with the opening 21. In the process of the anti-winding plates 5 rotating from being parallel to the opening 21 to being vertical, the weeds wound around the outside of the anti-winding shell are cut. The reciprocating operation of the swing motor 91 can reciprocate the weeds on the outside of the anti-winding shell.

[0056] The telescopic connecting member 71 includes a first connecting rod 711 and a second connecting rod 712 which are respectively connected to the outer side of the supporting shaft 6 by sliding sleeves from bottom to top. The two ends of the first connecting rod 711 are hinged to the two adjacent second connecting rods 712 through a pin, and the two ends of the second connecting rod 712 are hinged to the two adjacent first connecting rods 711 through a pin.

[0057] The third connecting rod 713 and the fourth connecting rod 714 are each provided with two third connecting rods 713 and the fourth connecting rod 714, and the third connecting rod 713 and one fourth connecting rod 714 form a group, and the two groups of the third connecting rod 713 and the fourth connecting rod 714 are respectively located at the two ends of the adjustment port 22, and are rotatably connected to each other by connecting shafts, and the third connecting rod 713 and the fourth connecting rod 714 are hinged to the adjacent first connecting rod 711 or the second connecting rod 712 through a pin shaft;

[0058] A moving block 715, wherein two moving blocks 715 are provided, and the two moving blocks 715 are rotatably sleeved on the outer sides of the two connecting shafts at both ends of the adjustment opening 22, and the moving blocks 715 are slidably connected to the bottom of the adjustment opening 22 of the mud guard 2;

[0059] The moving mechanism 8 is installed inside the protective shell 72 , and the moving mechanism 8 is used to drive the two moving blocks 715 .

[0060] The moving mechanism 8 includes a bidirectional threaded rod 81 rotatably connected to the inner side of the protective shell 72, and in the present embodiment, the bidirectional threaded rod 81 is located below a plurality of connecting rods, so that when the bidirectional threaded rod 81 rotates, it does not affect the movement of the first connecting rod 711, the second connecting rod 712, the third connecting rod 713 and the fourth connecting rod 714. The two moving blocks 715 are respectively threadedly sleeved on the two ends of the bidirectional threaded rod 81, and a driving motor 82 for driving the bidirectional threaded rod 81 is installed on the protective shell 72, and the protective shell 72 protects the driving motor 82.

[0061] A limiting groove 211 is provided at the bottom of the opening 21 , and the bottoms of the plurality of support shafts 6 are slidably connected to the limiting groove 211 .

[0062] Specific implementation process: after the multiple anti-winding plates 5 rotate 90°, the driving motor 82 runs, thereby causing the bidirectional threaded rod 81 to rotate. When the bidirectional threaded rod 81 rotates, it provides driving force in opposite directions for the two moving blocks 715 on its outer side. Because the moving blocks 715 are limited by the mud guard cover 2, the two moving blocks 715 move toward each other. At the same time, since the bottom of the support shaft 6 located at the center of the opening 21 is rotationally connected to the opening 21, the support shaft 6 at the center of the opening 21 remains unchanged in this state. Since the two moving blocks 715 move toward each other, the third connecting support rod 713 is connected to the fourth connecting support rod 714 and the multiple first connecting support rods 711 and the second connecting support rods 712, the remaining multiple support shafts 6 are driven to move along the support shaft 6 at the center. When the support shaft 6 moves, the anti-winding plate 5 on its outer side is driven to move, and the multiple anti-winding plates 5 move in opposite directions, further achieving the effect of fully removing the weeds on the outer side of the mud guard cover 2. Example

[0063] See also Fig.10 Embodiment 2 is a further supplementary explanation of Embodiment 1, specifically: a swing frame 743 is located at one end of the entrance of the mud guard 2 and is connected to a cutting piece 94, and the cutting piece 94 is used to cut and remove the weeds entangled on the side of the entrance.

[0064] The cutting piece 94 includes a positioning shaft 941 fixedly passing through one end of the swing frame 743;

[0065] A limit frame 942 is provided on the top of the positioning shaft 941. The limit frame 942 is installed at the adjustment opening 22, and an arc opening is provided on the limit frame 942. The positioning shaft 941 is slidably connected with the arc opening.

[0066] A support plate 943 is fixedly installed at the bottom of the positioning shaft 941, a support roller 944 is fixedly installed at the bottom of the support plate 943, and a plurality of cutting blades 945 are fixed around the outside of the support roller 944, and the cutting blades 945 are also made of high-speed steel. The support roller 944 and the cutting blades 945 on its outside are located on the inner side of the entrance of the mud guard 2, and do not affect the cutting of weeds by the cutting disc 3. At the same time, this arrangement does not affect the cutting blades 945 during the process of the cutting of weeds by the cutting disc 3.

[0067] Specific implementation process: When the weeds are located on both sides of the mud guard 2, and some of the weeds are located on one side of the entrance of the mud guard 2, when the swing frame 743 moves a certain angle, it drives the support plate 943 to move synchronously through the positioning shaft 941. When the support plate 943 moves, the cutting blade 945 is driven by the support roller 944 to cut the weeds entangled at the entrance along the edge of the entrance.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural weeding device, comprising a weeder body (1), a mud guard (2) mounted at the front end of the weeder body (1), and a cutting disc (3) mounted inside the mud guard (2), wherein a driving mechanism (4) for driving the cutting disc (3) is mounted on one side of the weeder body (1), characterized in that: Also included are: Both sides of the mud guard (2) are provided with openings (21); An anti-winding plate (5), wherein a plurality of the anti-winding plates (5) are provided, and the plurality of the anti-winding plates (5) are equidistantly distributed at the opening (21), both sides of the anti-winding plate (5) are conical, and the anti-winding plate (5) is made of high-speed steel; A support shaft (6), the support shaft (6) passing through the center of the anti-winding plate (5), a plurality of the support shafts (6) being slidably connected to the bottom of the opening (21), and the bottom of the support shaft (6) located at the center of the opening (21) being rotatably connected to the opening (21); A state adjustment mechanism (7), the state adjustment mechanism (7) being mounted on the top of the opening (21) of the mud guard (2), and the state adjustment mechanism (7) drives the plurality of support shafts (6) so that the plurality of anti-winding plates (5) remove weeds entangled between the mud guard (2) and the mud guard (2) and the cutting disc (3); The mud guard (2) is provided with an adjustment opening (22) at a position corresponding to the state adjustment mechanism (7), and the adjustment opening (22) is located above the opening (21); The state adjustment mechanism (7) comprises a telescopic connection member (71) connected to the tops of the plurality of support shafts (6) at the opening (21), a protective shell (72) is installed outside the adjustment opening (22), and the telescopic connection member (71) is located inside the protective shell (72); A positioning sleeve (73), wherein a plurality of the positioning sleeves (73) are provided, and the plurality of positioning sleeves (73) are all located above the telescopic connecting member (71), and the positioning sleeves (73) are fixedly sleeved on the top of the supporting shaft (6); A swing mechanism (74), the swing mechanism (74) being located at the adjustment opening (22), and the swing mechanism (74) being used to adjust the connection angles of the plurality of positioning sleeves (73); The telescopic connecting member (71) comprises a first connecting rod (711) and a second connecting rod (712) which are respectively slidably sleeved on the outside of the support shaft (6) from bottom to top, the first connecting rod (711) having two ends hingedly connected to two adjacent second connecting rods (712) via a pin, and the second connecting rod (712) having two ends hingedly connected to two adjacent first connecting rods (711) via a pin; A third connecting support rod (713) and a fourth connecting support rod (714), wherein two third connecting support rods (713) and two fourth connecting support rods (714) are provided, and the third connecting support rod (713) and one fourth connecting support rod (714) form a group, and the two groups of third connecting support rods (713) and fourth connecting support rods (714) are respectively located at two ends of the adjustment opening (22) and are rotatably connected to each other via connecting shafts, and the third connecting support rod (713) and the fourth connecting support rod (714) are hinged to the adjacent first connecting support rod (711) or the second connecting support rod (712) via a pin shaft; A moving block (715), wherein two moving blocks (715) are provided, and the two moving blocks (715) are rotatably sleeved on the outsides of two connecting shafts at both ends of the adjustment port (22); A moving mechanism (8), wherein the moving mechanism (8) is installed inside the protective shell (72), and the moving mechanism (8) is used to drive the two moving blocks (715).

2. An agricultural weeding device according to claim 1, characterized in that: The moving mechanism (8) comprises a bidirectional threaded rod (81) rotatably connected to the inner side of the protective shell (72), the two moving blocks (715) are respectively threadedly sleeved on the two ends of the bidirectional threaded rod (81), and a driving motor (82) for driving the bidirectional threaded rod (81) is mounted on the protective shell (72).

3. The agricultural weeding device according to claim 1, characterized in that: A limiting groove (211) is provided at the bottom of the opening (21), and the bottoms of the plurality of support shafts (6) are all slidably connected to the limiting groove (211).

4. The agricultural weeding device according to claim 1, characterized in that: The swing mechanism (74) comprises a swing plate (741) respectively fixedly connected to a plurality of positioning sleeves (73); a swing shaft (742) is fixedly mounted on the top of one end of the swing plate (741) away from the positioning sleeve (73); A swing frame (743) is sleeved on the outer side between the plurality of swing shafts (742), and a swing member (9) for driving the swing block is installed on the top of the adjustment opening (22).

5. The agricultural weeding device according to claim 4, characterized in that: The swing member (9) comprises a swing motor (91) fixedly mounted on the top of the adjustment port (22); a rotating plate (92) is fixedly mounted on the output end of the swing motor (91); a synchronous shaft (93) is fixedly mounted on the top of one end of the rotating plate (92); and the synchronous shaft (93) is rotatably connected to the top of the swing frame (743).

6. The agricultural weeding device according to claim 5, characterized in that: One end of the swing frame (743) located at the entrance of the mud guard (2) is connected to a cutting piece (94), and the cutting piece (94) is used to cut and remove weeds entangled on the side of the entrance.

7. An agricultural weeding device according to claim 6, characterized in that: The cutting piece (94) comprises a positioning shaft (941) fixedly penetrating one end of the swing frame (743); A limit frame (942) is provided on the top of the positioning shaft (941), the limit frame (942) is installed at the adjustment opening (22), and an arc opening is provided on the limit frame (942), and the positioning shaft (941) is slidably connected to the arc opening; A support plate (943) is fixedly mounted on the bottom of the positioning shaft (941), a support roller (944) is fixedly mounted on the bottom of the support plate (943), and a plurality of cutting blades (945) are fixedly mounted around the outside of the support roller (944).

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