A weeding wheel

Abstract

A weeding wheel comprises a cylinder, a first annular plate and a second annular plate are arranged on the cylinder at intervals, a knife-shaped blade can be detachably installed between the first annular plate and the second annular plate, the knife-shaped blade is distributed in a circular array along the center of the cylinder, the first annular plate and the cylinder are an integral fixed connection structure, the second annular plate is sleeved on the cylinder and is locked and positioned by a locking nut, the first annular plate and the second annular plate are respectively processed with a first slot and a second slot, the knife-shaped blade extends at both ends along the length direction to form a limit block, and the limit block is respectively inserted into the first slot and the second slot. In the weeding wheel structure, the knife-shaped blade and the first annular plate and the second annular plate are connected by a plug-in positioning method and locked with a locking nut, the knife-shaped blade and the second annular plate are detachable as a whole, and the installation is convenient, and it is also convenient to replace the knife-shaped blade later.

Description

Technical Field

[0001] The utility model relates to a weeding wheel. Background Art

[0002] One of the main contents of landscaping maintenance project construction is plant maintenance. There are many types of specific construction projects, including loosening soil, fertilizing, replanting, weeding, pruning, and pest and disease control. Among them, one of the most important tasks to improve the quality of landscaping maintenance projects is weeding. The effect of weeding directly affects whether plants can grow healthily. Existing weeding methods include chemical weeding, handheld manpower weeding, remote control weeding, etc. Whether it is an automatic or manual weeder, the weeding wheel is one of the main structures of the weeder. The blades on the existing weeding wheels are fixed structures and cannot be disassembled. They are mostly fixed by welding. Not only is the processing process complicated, but when individual blades are worn, they need to be scrapped as a whole, affecting the overall service life. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a weeding wheel.

[0004] To achieve the above-mentioned purpose, the utility model provides a weeding wheel, including a cylinder body, on which a first annular plate and a second annular plate are arranged at intervals, and a knife-shaped blade is detachably installed between the first annular plate and the second annular plate, and the knife-shaped blades are distributed in a circular array along the center of the cylinder body, and the first annular plate and the cylinder body are an integral fixed connection structure, the second annular plate is sleeved on the cylinder body and is locked in place by a locking nut, and the first annular plate and the second annular plate are respectively processed with a first slot and a second slot, and the knife-shaped blade extends at both ends along the length direction to form a limit block, and the limit blocks are respectively inserted into the first slot and the second slot.

[0005] As a further improvement of the utility model, the cylinder body has a stepped shaft structure, and the cylinder body includes a shaft body section, a shaft neck section, and a shaft head section along the direction from large to small diameter. The first annular plate is fixed on the shaft body section, and the second annular plate is sleeved on the shaft neck section. The length of the shaft neck section matches the thickness of the second annular plate, and the outer periphery of the shaft head section is machined with an external thread that cooperates with the locking nut.

[0006] As a further improvement of the present invention, the second annular plate and the shaft neck section are connected by a spline structure, an internal spline is processed at the center of the second annular plate, and an external spline is processed at the outer periphery of the shaft neck section to match the internal spline.

[0007] As a further improvement of the present invention, a washer is provided between the second annular plate and the locking nut.

[0008] As a further improvement of the present invention, the knife-shaped blade includes a blade body and a blade edge, the limit blocks are arranged at both ends of the blade body, the blade is arranged at one end of the blade body away from the cylinder body, and the end of the blade exceeds the outer circumferential surface of the first annular plate and the second annular plate.

[0009] As a further improvement of the present invention, the knife-shaped blades are distributed obliquely on the second annular plate in a centrally symmetrical manner.

[0010] As a further improvement of the present invention, the first slot and the second slot are rectangular structures.

[0011] The beneficial effects of the utility model are:

[0012] The knife-shaped blades and the first and second annular plates in the weeding wheel structure are connected by a plug-in positioning method and are locked with a locking nut. The knife-shaped blades and the second annular plate are detachable as a whole, which is convenient for installation and convenient for replacing damaged knife-shaped blades at a later time, thereby increasing the service life of the overall weeding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a central cross-sectional view of a weeding wheel of the utility model;

[0014] Figure 2 This is a top view of a weeding wheel of the utility model;

[0015] Figure 3 is a top view of the second annular plate 4;

[0016] Figure 4 It is a top view of the cylinder 1.

[0017] In the figure: 1, cylinder; 11, shaft body section; 12, shaft neck section; 121, external spline; 13, shaft head section; 131, external thread; 2, first annular plate; 21, first slot; 3, knife-shaped blade; 31, blade body; 32, blade; 33, limit block; 4, second annular plate; 41, second slot; 42, internal spline; 5, washer; 6, locking nut. DETAILED DESCRIPTION

[0018] like Figure 1 , Figure 2As shown, a weeding wheel described in an embodiment of the utility model comprises a cylinder 1, on which a first annular plate 2 and a second annular plate 4 are arranged at intervals, and a knife-shaped blade 3 can be detachably installed between the first annular plate 2 and the second annular plate 4, and the knife-shaped blade 3 is distributed in a circular array along the center of the cylinder 1, and the first annular plate 2 and the cylinder 1 are in an integral fixed connection structure, and the second annular plate 4 is sleeved on the cylinder 1 and locked and positioned by a locking nut 6, and the first annular plate 2 and the second annular plate 4 are respectively processed with a first slot 21 and a second slot 42, and the first slot 21 and the second slot 42 are rectangular structures, and the knife-shaped blade 3 extends at both ends along the length direction to form a limit block 33, and the limit block 33 is respectively inserted into the first slot 21 and the second slot 42;

[0019] The cylinder 1 is a stepped shaft structure. The cylinder 1 includes a shaft body section 11, a shaft neck section 12, and a shaft head section 13 along the direction from large to small diameter. The first annular plate 2 is fixed on the shaft body section 11, and the second annular plate 4 is sleeved on the shaft neck section 12. The length of the shaft neck section 12 matches the thickness of the second annular plate 4. The outer circumference of the shaft head section 13 is processed with an external thread 131 to match the locking nut 6. The second annular plate 4 and the shaft neck section 12 are connected by a spline structure. The center of the second annular plate 4 is processed with an internal spline 42. The outer circumference of the shaft neck section 12 is processed to form an external spline 121 to match the internal spline 42 (see Figure 3 , Figure 4 ), a washer 5 is provided between the second annular plate 4 and the locking nut 6;

[0020] The knife-shaped blade 3 includes a blade body 31 and a blade edge 32. The limit blocks 33 are arranged at both ends of the blade body 31. The blade edge 32 is arranged at the end of the blade body 31 away from the cylinder 1. The end of the blade 32 exceeds the outer circumferential surface of the first annular plate 2 and the second annular plate 4. The knife-shaped blade 3 is obliquely distributed in a centrally symmetrical manner on the second annular plate 4.

[0021] The knife-shaped blades and the first and second annular plates in the weeding wheel structure are connected by a plug-in positioning method and are locked with a locking nut. The knife-shaped blades and the second annular plate are detachable as a whole, which is convenient for installation and convenient for replacing damaged knife-shaped blades at a later time, thereby increasing the service life of the overall weeding wheel.

[0022] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0023] During installation, the cylinder is placed vertically with the shaft head section of the cylinder facing upwards, the limit block at the lower end of the knife-shaped blade is inserted into the first slot of the first annular plate, and multiple knife-shaped blades are symmetrically distributed along the center. Then the second annular plate is sleeved on the shaft neck section of the cylinder, and the second slot on the second annular plate is correspondingly engaged with the limit block at the upper end of the knife-shaped blade. The internal spline at the center of the second annular plate cooperates with the external spline of the shaft neck section, thereby limiting the radial rotation of the second annular plate. Finally, a washer is sleeved on the shaft head section of the cylinder and locked in place with a locking nut. If individual knife-shaped blades are damaged during use and need to be replaced, just unscrew the locking nut and remove the second annular plate for replacement.

[0024] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A weeding wheel, characterized in that: The invention comprises a cylinder (1), wherein a first annular plate (2) and a second annular plate (4) are arranged on the cylinder (1) at intervals, a knife-shaped blade (3) is detachably mounted between the first annular plate (2) and the second annular plate (4), the knife-shaped blade (3) is distributed in a circular array along the center of the cylinder (1), the first annular plate (2) and the cylinder (1) are in an integral fixed connection structure, the second annular plate (4) is sleeved on the cylinder (1) and is locked in place by a locking nut (6), the first annular plate (2) and the second annular plate (4) are respectively processed with a first slot (21) and a second slot (41), the knife-shaped blade (3) is extended at both ends along the length direction to form a limit block (33), the limit block (33) is respectively inserted into the first slot (21) and the second slot (41).

2. A weeding wheel according to claim 1, characterized in that: The cylinder (1) is in the form of a stepped shaft structure. The cylinder (1) comprises a shaft body section (11), a shaft neck section (12), and a shaft head section (13) in the direction from large to small diameter. The first annular plate (2) is fixedly mounted on the shaft body section (11). The second annular plate (4) is sleeved on the shaft neck section (12). The length of the shaft neck section (12) matches the thickness of the second annular plate (4). The shaft head section (13) is provided with an external thread (131) on its outer periphery to cooperate with the locking nut (6).

3. A weeding wheel according to claim 2, characterized in that: The second annular plate (4) and the shaft neck section (12) are connected by a spline structure; an internal spline (42) is machined at the center of the second annular plate (4), and an external spline (121) is machined on the outer periphery of the shaft neck section (12) to match the internal spline (42).

4. A weeding wheel according to claim 2, characterized in that: A washer (5) is provided between the second annular plate (4) and the locking nut (6).

5. The weeding wheel according to claim 1, characterized in that: The knife-shaped blade (3) comprises a blade body (31) and a blade edge (32); the limit blocks (33) are arranged at both ends of the blade body (31); the blade edge (32) is arranged at one end of the blade body (31) away from the cylinder (1); and the end of the blade edge (32) exceeds the outer circumferential surface of the first annular plate (2) and the second annular plate (4).

6. A weeding wheel according to claim 1, characterized in that: The knife-shaped blades (3) are distributed obliquely on the second annular plate (4) in a centrosymmetric manner.

7. The weeding wheel according to claim 1, characterized in that: The first slot (21) and the second slot (41) are rectangular structures.

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