Soil loosening and weeding mechanism and weeding assembly for orchard

Abstract

The soil loosening and weeding mechanism comprises a mounting frame, a soil loosening harrow and a weeding coulter, the mounting frame is horizontally arranged in the front-back direction, a seat body is arranged at the front lower end of the mounting frame, the soil loosening harrow is provided with a rotating shaft, and the weeding coulter is arranged on the rotating shaft. The rotary shaft is horizontally arranged in the left-right direction and connected with the base body, a shaft piece is further vertically arranged on the portion, located behind the base body, of the mounting frame, the blade of the weeding coulter faces forwards, and the lower end of the shaft piece is connected with the upper end of the weeding coulter. When the soil loosening and weeding mechanism moves forwards, the soil loosening harrow makes contact with the earth surface, the weeding coulter descends into the soil layer, when the soil loosening and weeding mechanism moves forwards, the soil loosening harrow loosens soil on the earth surface in advance, the weeding coulter plows and turns soil on the shallow layer of the earth surface, the roots of weeds are cut off, and the weeds are covered with the turned soil.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly relates to a soil loosening and weeding mechanism and a weeding assembly for orchards. Background Art

[0002] At present, for orchards, weeds are easily bred between plant rows, and weeds will compete with plants for nutrients and attract pests and diseases. Therefore, the weeds between plant rows need to be removed regularly. At present, most of them are removed manually using hoe-like tools, but their efficiency is low. Of course, some orchard weeding machines have also appeared on the market. For example, the soil loosening and weeding machine disclosed in document No. CN210868640U "A kind of electric soil loosening and weeding machine for orchard" has its own chassis, which has a complex structure and high investment cost, and cannot be driven by a tractor. In addition, document No. CN210630186U "A kind of orchard soil loosening and weeding device" has no power and needs to be pushed manually, so its operating efficiency is low. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a soil loosening and weeding mechanism which has a simple structure and can loosen the soil and cut off the roots of weeds on the surface at the same time.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a soil loosening and weeding mechanism, including a mounting frame, a soil loosening rake and a weeding plow, the mounting frame is horizontally arranged along the front and rear direction, a seat body is arranged at the front lower end of the mounting frame, the soil loosening rake has a rotating shaft, the rotating shaft is horizontally arranged along the left and right direction and connected to the seat body, and a shaft member is also vertically arranged on the mounting frame at the rear of the seat body, the blade of the weeding plow faces forward, and the lower end of the shaft member is connected to the upper end of the weeding plow.

[0005] The beneficial effect of the above technical solution is that when the soil loosening and weeding mechanism is in operation, its soil loosening harrow contacts the ground surface, and the weeding plow goes down into the soil layer. When the soil loosening and weeding mechanism moves forward, the soil loosening harrow loosens the ground surface in advance, and the weeding plow plows and turns the shallow soil on the ground surface to cut off the roots of weeds and cover the weeds with the turned soil.

[0006] The above technical solution also includes a driving member, the upper end of the shaft member is rotatably connected to the mounting frame, the driving member is arranged on the mounting frame, and its driving end is transmission-connected to the shaft member, and the driving member is used to drive the weeding plow to swing along the left and right directions with the blade facing forward for unfolding, or drive the weeding plow to swing backward and be distributed along the front and rear directions for storage.

[0007] The beneficial effect of the above technical solution is that when the weeding plow approaches the fruit tree plant, the driving member can drive the weeding plow to swing backward to be distributed in the front-to-back direction, at which time the plant can be avoided to avoid damage to the equipment or damage to the root system of the plant.

[0008] The loosening rake in the above technical solution also includes a rake disc, which is vertically arranged in the front-to-back direction and coaxially connected to the rotating shaft. When the rotating shaft is coaxially rotatably connected to the rake disc, the rotating shaft is fixedly connected to the seat body, or when the rotating shaft is coaxially fixedly connected to the rake disc, the rotating shaft is rotatably connected to the seat body.

[0009] The beneficial effect of the above technical solution is that its structure is simple, so that when the soil loosening and weeding mechanism moves forward, the lower edge of the harrow disc cuts into the ground while rotating, and the ground is loosened.

[0010] In the above technical solution, the rake disc is spherical, and the notch side of the rake disc faces away from the seat body. The edge of the rake disc is convexly provided with a plurality of rake teeth at even intervals in an annular direction.

[0011] The beneficial effect of the above technical solution is that the edge of the harrow disc has a good cutting effect and has a certain soil loosening width after cutting into the ground.

[0012] The seat body in the above technical solution includes an upper seat body, a first engaging seat and a lower seat body, the upper seat body and the lower seat body are both vertically arranged, and the upper seat body is located above the lower seat body, the lower end of the upper seat body and the upper end of the lower seat body are connected through the engaging seat, the upper end of the upper seat body is connected to the mounting frame, and the rotating shaft is connected to the lower seat body.

[0013] The beneficial effect of the above technical solution is that: it has a simple structure and the direction of the notch of the rake disc can be adjusted by the first engagement seat.

[0014] In the above technical scheme, the first engaging seat includes a first upper engaging seat, a first lower engaging seat, a first bolt and a first nut, the first upper engaging seat and the first lower engaging seat are both cylindrical and vertically arranged, the middle parts of the first upper engaging seat and the first lower engaging seat are coaxially provided with upper and lower penetrating holes, and the lower end of the first upper engaging seat and the upper end of the first lower engaging seat are both circumferentially evenly spaced with engaging grooves, the lower end of the upper seat body is connected to the edge of the upper end of the first upper engaging seat, the upper end of the lower seat body is connected to the edge of the lower end of the first lower engaging seat, the first upper engaging seat is located at the upper end of the first lower engaging seat, and the holes in the middle of the two are aligned with each other and the first bolt is inserted, the first nut is threadedly installed on the threaded end of the first bolt and tightened to press the first upper engaging seat and the first lower engaging seat to engage with the engaging grooves thereon.

[0015] The beneficial effect of the above technical solution is that its structure is simple, so that the first upper engaging seat and the first lower engaging seat are not easy to rotate relative to each other to loosen after being assembled and abutted.

[0016] In the above technical solution, the lower end of the shaft is connected to one end of the weeding coulter through a second engagement seat.

[0017] The beneficial effect of the above technical solution is that the direction of the blade side of the weeding plow can be adjusted through the second engagement seat.

[0018] In the above technical scheme, the second engaging seat includes a second upper engaging seat, a second lower engaging seat and a second bolt, the second upper engaging seat and the second lower engaging seat are both cylindrical and vertically arranged, the lower end of the second lower engaging seat is integrally formed with one end of the weeding plow, the upper end of the second upper engaging seat is coaxially distributed with the lower end of the shaft and integrally formed, the lower end of the second upper engaging seat and the upper end of the second lower engaging seat are both concavely provided with engaging grooves at uniform intervals along the circumferential direction, the middle part of the lower end of the second upper engaging seat is coaxially concave with a thread groove upward, the middle part of the second lower engaging seat is coaxially provided with a hole penetrating up and down, the hole in the middle part of the second lower engaging seat is aligned with the thread groove in the middle part of the second upper engaging seat and the second bolt is inserted to be threadedly connected with the thread groove, and the second bolt is tightened to press the second upper engaging seat and the second lower engaging seat to engage with the engaging grooves thereon.

[0019] The beneficial effect of the above technical solution is that it is not easy for the second upper engagement seat and the second lower engagement seat to rotate relative to each other and become loose after they are assembled and fit together.

[0020] The driving member in the above technical solution is a telescopic cylinder, and a swing ear is horizontally protruded on the shaft member. One end of the driving member is swingably connected to the mounting frame, and the telescopic end is swingably connected to the swing ear. The driving member extends or contracts to drive the weeding plow to swing to unfold or retract.

[0021] The beneficial effects of the above technical solution are: its structure is simple and the driving force is strong.

[0022] The second purpose of the utility model is to provide an orchard weeding assembly which has a simple structure and can loosen and weed the soil on both sides of the rows of orchard plants.

[0023] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a weeding assembly for an orchard, comprising a frame and two soil loosening and weeding mechanisms as described above, the frame being horizontally arranged in the left and right directions, and the two soil loosening and weeding mechanisms being symmetrically arranged at both ends of the frame, and the two mounting frames being connected to the frame or integrally formed therewith.

[0024] The beneficial effect of the above technical solution is that in this way, the soil on both sides of the plant rows can be loosened and weeded by the two soil loosening and weeding mechanisms during the forward movement of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a side view of the soil loosening and weeding mechanism described in Example 1 of the utility model;

[0026] Figure 2 It is a front view of the soil loosening and weeding mechanism described in Example 1 of the utility model;

[0027] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0028] Figure 4 This is a schematic structural diagram of the first engagement seat in Example 1 of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the second engagement seat in Example 1 of the utility model;

[0030] Figure 6 It is a side view of the soil loosening and weeding mechanism described in Example 2 of the utility model;

[0031] Figure 7 A schematic diagram of the driving member in Embodiment 2 of the present utility model being a telescopic cylinder and being connected to the shaft member in a transmission manner;

[0032] Figure 8 This is a schematic diagram of Embodiment 2 of the utility model when the weeding coulter is in an unfolded state;

[0033] Fig. 9 This is a schematic diagram of Embodiment 2 of the utility model when the weeding coulter is in a stored state;

[0034] Fig.10 This is a schematic structural diagram of the orchard weeding assembly described in Example 3 of the utility model.

[0035] In the figure: 1. loosening and weeding mechanism; 11. mounting frame; 12. loosening rake; 121. rotating shaft; 122. rake disc; 1221. rake teeth; 13. weeding plow; 14. driving member; 15. seat body; 151. upper seat body; 152. first meshing seat; 1521. first upper meshing seat; 1522. first lower meshing seat; 1523. first bolt; 1524. first nut; 153. lower seat body; 16. shaft member; 161. first vertical shaft; 162. second vertical shaft; 163. first flange connecting plate; 164. second flange connecting plate; 17. second meshing seat; 171. second upper meshing seat; 1711. threaded groove; 172. second lower meshing seat; 173. second bolt; 18. swinging ear; 2. frame. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0037] Example 1

[0038] like Figure 1 and Figure 2 As shown, this embodiment provides a soil loosening and weeding mechanism, including a mounting frame 11, a soil loosening rake 12 and a weeding coulter 13, the mounting frame 11 is horizontally arranged in the front-back direction, a seat body 15 is arranged at the front lower end of the mounting frame 11, the soil loosening rake 12 has a rotating shaft 121, the rotating shaft 121 is horizontally arranged in the left-right direction and connected to the seat body 15, and a shaft member 16 is vertically arranged on the mounting frame 11 at the rear of the seat body 15, the blade of the weeding coulter 13 faces forward, and the lower end of the shaft member 16 is connected to the upper end of the weeding coulter, so that when the soil loosening and weeding mechanism is in operation, its soil loosening rake contacts with the ground surface, and the weeding coulter goes down into the soil layer, and when the soil loosening and weeding mechanism moves forward, the soil loosening rake loosens the ground surface in advance, and the weeding coulter plows and turns the shallow soil on the ground surface to cut off the roots of weeds and cover the weeds with the turned soil. In this embodiment, the upper end of the shaft is fixedly connected to the mounting frame.

[0039] The loosening rake 12 in the above technical solution also includes a rake disc 122, which is vertically arranged in the front-rear direction and coaxially connected with the rotating shaft 121. When the rotating shaft 121 is coaxially rotatably connected with the rake disc 122, the rotating shaft 121 is fixedly connected with the seat 15, or when the rotating shaft 121 is coaxially fixedly connected with the rake disc 122, the rotating shaft 121 is rotatably connected with the seat 15. The structure is simple, so that when the loosening and weeding mechanism moves forward, the lower edge of the rake disc cuts into the ground while rotating, and the ground is loosened. The upper end of the shaft member in this embodiment is fixedly connected with the mounting frame.

[0040] The rake disc 122 in the above technical solution is spherical, and its notch side is away from the seat body 15. The edge of the rake disc 122 is convexly provided with multiple rake teeth 1221 at even intervals in an annular direction, so that the edge of the rake disc has a good cutting effect and has a certain loosening width after cutting into the ground.

[0041] like Figure 3 As shown, the seat body 15 in the above technical solution includes an upper seat body 151, a first engaging seat 152 and a lower seat body 153, the upper seat body 151 and the lower seat body 153 are both vertically arranged, and the upper seat body 151 is located above the lower seat body 153, the lower end of the upper seat body 151 and the upper end of the lower seat body 153 are connected through the engaging seat, the upper end of the upper seat body 151 is connected to the mounting frame 11, and the rotating shaft 121 is connected to the lower seat body 153, the structure is simple, and the direction of the rake disc notch can be adjusted through the first engaging seat.

[0042] In this embodiment, the upper seat body 151 and the lower seat body 153 can both be straight bars.

[0043] like Figure 4 As shown, in the above technical solution, the first engagement seat 152 includes a first upper engagement seat 1521, a first lower engagement seat 1522, a first bolt 1523 and a first nut 1524. The first upper engagement seat 1521 and the first lower engagement seat 1522 are both cylindrical and vertically arranged. The middle parts of the first upper engagement seat 1521 and the first lower engagement seat 1522 are coaxially provided with holes penetrating from top to bottom, and the lower end of the first upper engagement seat 1521 and the upper end of the first lower engagement seat 1522 are both concavely provided with toothed grooves at uniform intervals along the circumferential direction. The lower end of the upper seat body 151 is engaged with the upper end of the first upper engagement seat 1521. The first upper engaging seat 1521 is located at the upper end of the first lower engaging seat 1522, and the holes in the middle of the two are aligned with each other and the first bolt 1523 is inserted into the first nut 1524. The first nut 1524 is threadedly installed on the threaded end of the first bolt 1523 and tightened to press the first upper engaging seat 1521 and the first lower engaging seat 1522 to engage with the engaging grooves thereon. The structure is simple, so that after the first upper engaging seat and the first lower engaging seat are assembled and fit together, the two are not easy to rotate relative to each other to loosen.

[0044] In the above technical solution, the lower end of the shaft 16 is connected to one end of the weeding coulter 13 through the second engagement seat 17, so that the direction of the blade side of the weeding coulter can be adjusted through the second engagement seat.

[0045] like Figure 5As shown, in the above technical solution, the second engagement seat 17 includes a second upper engagement seat 171, a second lower engagement seat 172 and a second bolt 173. The second upper engagement seat 171 and the second lower engagement seat 172 are both cylindrical and vertically arranged. The lower end of the second lower engagement seat 172 is integrally formed with one end of the weeding plow 13. The upper end of the second upper engagement seat 171 is coaxially distributed with the lower end of the shaft 16 and is integrally formed. The lower end of the second upper engagement seat 171 and the upper end of the second lower engagement seat 172 are both concavely provided with toothed grooves evenly spaced along the circumferential direction. A thread groove 1711 is coaxially recessed upwardly in the middle part of the lower end of 71, and a hole penetrating upward and downward is coaxially arranged in the middle part of the second lower engaging seat 172. The hole in the middle part of the second lower engaging seat 172 is aligned with the thread groove 1711 in the middle part of the second upper engaging seat 171 and the second bolt 173 is inserted to be threadedly connected with the thread groove 1711. The second bolt 173 is tightened to press the second upper engaging seat 171 and the second lower engaging seat 172 to engage with the engaging grooves thereon, so that the second upper engaging seat and the second lower engaging seat are not easy to rotate relative to each other to loosen after being assembled and fitted.

[0046] Among them, the weeding plow described in this embodiment is in the shape of a strip plate, and one side of its length direction is a blade. Its material and thickness are similar to those of the current plows, and the blade side of the weeding plow can be slightly tilted downward at an angle of 1-5°. Preferably, the end of the weeding plow away from the connection with the shaft can be slightly bent upward in an arc shape until it is tilted, so that the soil loosening effect is better.

[0047] See Figure 1 As shown, the shaft member 16 in this embodiment includes a first vertical shaft 161, a second vertical shaft 162, a first flange connecting plate 163 and a second flange connecting plate 164; the first vertical shaft and the second vertical shaft are both vertically arranged, and the first flange connecting plate 163 is coaxially fixed to the lower end of the first vertical shaft, and the second flange connecting plate is coaxially fixed to the upper end of the second vertical shaft, and the first flange connecting plate and the second flange connecting plate are connected by bolts and nuts (which belong to the prior art and are not described here), the upper end of the first vertical shaft constitutes the upper end of the shaft member, and the lower end of the second vertical shaft constitutes the lower end of the shaft member, so that the second vertical shaft, the second engagement seat and the weeding coulter can be easily replaced.

[0048] Example 2

[0049] Same as Example 1, except that Figure 6As shown, the above technical solution also includes a driving member 14, the upper end of the shaft member 16 is rotatably connected to the mounting frame 11, the driving member 14 is arranged on the mounting frame 11, and its driving end is transmission-connected to the shaft member 16, the driving member 14 is used to drive the weeding plow 13 to swing to be distributed along the left-right direction with the blade facing forward for unfolding, or drive the weeding plow 13 to swing backward to be distributed along the front-back direction for storage, so that when the weeding plow approaches the fruit tree plant, the driving member drives the weeding plow to swing backward to be distributed along the front-back direction, and the plant can be avoided at this time to avoid damage to the equipment or damage to the root system of the plant.

[0050] like Figure 8 and Fig. 9 As shown, the unfolded state of the weeding coulter in this embodiment is that it is swung to be perpendicular to the mounting frame (i.e., in a left-right distribution state), so that it can be lowered into the shallow soil of the surface to perform tillage and weeding operations, and the stored state of the weeding coulter is that it is swung backward to be distributed along the front-back direction and below the mounting frame, so that fruit trees can be avoided, wherein, Figure 8 and Fig. 9 The direction of the arrow in the middle indicates the forward direction of the mounting bracket.

[0051] In this embodiment, the harrow disc can be located just in front of the shaft member, so that when the weeding coulter is swung to storage, the weeding coulter is just behind the harrow disc, and the harrow disc does not need to avoid the plants.

[0052] The driving member in this embodiment can be a rotary cylinder or a servo brake motor, and of course can also be a telescopic cylinder (preferably a telescopic cylinder), such as Figure 7 As shown, when the driving member 14 is a telescopic cylinder, a swing ear 18 is horizontally protruded on the shaft member 16, one end of the driving member 14 is swingably connected to the mounting frame 11, and the telescopic end thereof is swingably connected to the swing ear 18, and the driving member 14 extends or contracts to drive the weeding plow 13 to swing to unfold or retract, and its structure is simple and the driving force is strong.

[0053] Example 3

[0054] like Fig.10 As shown, this embodiment provides a weeding assembly for an orchard, comprising a frame 2 and two soil loosening and weeding mechanisms 1 as described in Example 1 or Example 2, wherein the frame 2 is horizontally arranged in the left-right direction, and the two soil loosening and weeding mechanisms 1 are symmetrically arranged at both ends of the frame 2, and the two mounting frames 11 are connected to or integrally formed with the frame 2, so that during the forward movement of the frame, the soil on both sides of the plant rows can be loosened and weeded by the two soil loosening and weeding mechanisms (the two weeding plows are swung outwards and away from each other when unfolded).

[0055] In this embodiment, three hanging points can be set in the middle of the upper end of the frame to cooperate with the three-point suspension parts at the rear of the tractor for hanging (the setting of the three hanging points on the frame is a standard part in the agricultural machinery field and will not be repeated here).

[0056] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A soil loosening and weeding mechanism, characterized in that: The utility model comprises a mounting frame (11), a soil loosening rake (12) and a weeding coulter (13), wherein the mounting frame (11) is horizontally arranged in the front-back direction, a seat body (15) is arranged at the front lower end of the mounting frame (11), the soil loosening rake (12) has a rotating shaft (121), the rotating shaft (121) is horizontally arranged in the left-right direction and connected to the seat body (15), and a shaft member (16) is vertically arranged on the mounting frame (11) at the rear of the seat body (15), the blade of the weeding coulter (13) faces forward, and the lower end of the shaft member (16) is connected to the upper end of the weeding coulter.

2. The soil loosening and weeding mechanism according to claim 1, characterized in that: The utility model also comprises a driving member (14), wherein the upper end of the shaft member (16) is rotatably connected to the mounting frame (11), the driving member (14) is arranged on the mounting frame (11), and the driving end thereof is drivingly connected to the shaft member (16), and the driving member (14) is used to drive the weeding coulter (13) to swing along the left-right direction with the blade facing forward for unfolding, or to drive the weeding coulter (13) to swing backward and be distributed along the front-back direction for storage.

3. The soil loosening and weeding mechanism according to claim 1, characterized in that: The loosening rake (12) further comprises a rake disc (122), which is arranged vertically along the front-rear direction and is coaxially connected to the rotating shaft (121). When the rotating shaft (121) and the rake disc (122) are coaxially rotatably connected, the rotating shaft (121) and the seat body (15) are fixedly connected, or when the rotating shaft (121) and the rake disc (122) are coaxially fixedly connected, the rotating shaft (121) and the seat body (15) are rotatably connected.

4. The soil loosening and weeding mechanism according to claim 3, characterized in that: The rake disc (122) is spherical in shape, and its notch side faces away from the seat body (15). The edge of the rake disc (122) is convexly provided with a plurality of rake teeth (1221) at even intervals in an annular direction.

5. The soil loosening and weeding mechanism according to any one of claims 1 to 4, characterized in that: The seat body (15) comprises an upper seat body (151), a first engaging seat (152) and a lower seat body (153); the upper seat body (151) and the lower seat body (153) are both arranged vertically, and the upper seat body (151) is located above the lower seat body (153); the lower end of the upper seat body (151) and the upper end of the lower seat body (153) are connected through the engaging seat; the upper end of the upper seat body (151) is connected to the mounting frame (11); and the rotating shaft (121) is connected to the lower seat body (153).

6. The soil loosening and weeding mechanism according to claim 5, characterized in that: The first engagement seat (152) comprises a first upper engagement seat (1521), a first lower engagement seat (1522), a first bolt (1523) and a first nut (1524); the first upper engagement seat (1521) and the first lower engagement seat (1522) are both cylindrical and vertically arranged; the middle parts of the first upper engagement seat (1521) and the first lower engagement seat (1522) are both coaxially provided with holes penetrating from top to bottom; and the lower end of the first upper engagement seat (1521) and the upper end of the first lower engagement seat (1522) are both concavely provided with toothed grooves at uniform intervals along the circumferential direction; the upper seat body (151) The lower end of the lower seat body (153) is connected to the edge of the upper end of the first upper engaging seat (1521), and the upper end of the lower seat body (153) is connected to the edge of the lower end of the first lower engaging seat (1522). The first upper engaging seat (1521) is located at the upper end of the first lower engaging seat (1522), and the holes in the middle of the two are aligned with each other and the first bolt (1523) is inserted into the first nut (1524), which is threadedly installed on the threaded end of the first bolt (1523) and tightened to press the first upper engaging seat (1521) and the first lower engaging seat (1522) to engage with each other in the engaging grooves thereon.

7. The soil loosening and weeding mechanism according to any one of claims 1 to 4, characterized in that: The lower end of the shaft (16) is connected to one end of the weeding coulter (13) via a second engagement seat (17).

8. The soil loosening and weeding mechanism according to claim 7, characterized in that: The second engagement seat (17) comprises a second upper engagement seat (171), a second lower engagement seat (172) and a second bolt (173); the second upper engagement seat (171) and the second lower engagement seat (172) are both cylindrical and vertically arranged; the lower end of the second lower engagement seat (172) is integrally formed with one end of the weeding plow (13); the upper end of the second upper engagement seat (171) is coaxially distributed with the lower end of the shaft (16) and is integrally formed; the lower end of the second upper engagement seat (171) and the upper end of the second lower engagement seat (172) are both evenly spaced along the circumferential direction and are provided with concave portions. The second upper engaging seat (171) is coaxially provided with a thread groove (1711) in the middle of the lower end, and the second lower engaging seat (172) is coaxially provided with a hole penetrating from top to bottom. The hole in the middle of the second lower engaging seat (172) is aligned with the thread groove (1711) in the middle of the second upper engaging seat (171) and the second bolt (173) is inserted to be threadedly connected with the thread groove (1711). The second bolt (173) is tightened to press the second upper engaging seat (171) and the second lower engaging seat (172) to engage with the engaging grooves thereon.

9. The soil loosening and weeding mechanism according to claim 2, characterized in that: The driving member (14) is a telescopic cylinder, and a swing ear (18) is horizontally protruded on the shaft member (16). One end of the driving member (14) is swingably connected to the mounting frame (11), and the telescopic end is swingably connected to the swing ear (18). The driving member (14) extends or contracts to drive the weeding coulter (13) to swing to unfold or retract.

10. A weeding assembly for an orchard, characterized in that: It comprises a frame (2) and two soil loosening and weeding mechanisms (1) as described in any one of claims 1 to 9, wherein the frame (2) is horizontally arranged in the left-right direction, and the two soil loosening and weeding mechanisms (1) are symmetrically arranged at both ends of the frame (2), and the two mounting frames (11) are connected to the frame (2) or are integrally formed.

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