Portable weeding device for crops

Abstract

The utility model relates to the field of agriculture, in particular to a portable crop weeding device which comprises a control box, a motor is fixedly connected to the upper surface of the control box, an output shaft is rotatably connected to the interior of the motor, a fixing rod is fixedly connected to the inner bottom wall of the control box, and the outer circumferential surface of the fixing rod is rotatably sleeved with two lantern rings; the outer circumferential face of each lantern ring is fixedly connected with a connecting plate, and the outer circumferential face of each lantern ring is fixedly connected with a fixing frame. According to the weeding device, the control rod is rotated to drive the positioning plate to move, so that the positioning rod can be moved out from the interior of the mounting plate, the positioning limitation on the cutting knife is relieved, the weeding structure of the weeding device can be conveniently mounted and dismounted, and the situation that more time is spent on maintenance when the weeding structure is damaged is avoided; and the problems that when a weeding structure of an existing weeding device is damaged, maintenance and replacement are not convenient, and practicability is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agriculture, in particular to a portable weeding device for crops. Background Art

[0002] Agriculture is an industry that utilizes the growth and development laws of animals and plants to obtain products through artificial cultivation. Agriculture belongs to the primary industry. The science that studies agriculture is agronomy. The objects of agricultural labor are plants, animals and other organisms. The products obtained come from the organisms themselves, such as silk and musk. Agriculture is a basic industry that provides support for the construction and development of the national economy.

[0003] Weeds not only rob crops of nutrients, but also cause pest problems. Therefore, it is very important to weed crops during agricultural production. However, existing weeding devices are generally large in size and have low flexibility. They are not convenient to carry around and require the use of tricycles and other means of transportation. This is difficult for some older people to carry, and it is not easy to replace the weeding structure when it is damaged, reducing the practicality of the weeding device.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the following shortcomings and defects: the existing weeding devices are generally large in size, low in flexibility, inconvenient to carry around and use, and inconvenient to replace when the weeding structure is damaged.

[0006] The utility model discloses a portable weeding device for crops, comprising a control box, the upper surface of the control box is fixedly connected with a motor, the inside of the motor is rotatably connected with an output shaft, the inner bottom wall of the control box is fixedly connected with a fixing rod, the outer circumferential surface of the fixing rod is rotatably sleeved with two rings, the outer circumferential surface of each ring is fixedly connected with a connecting plate, the outer circumferential surface of each ring is fixedly connected with a fixing frame, the inside of the fixing frame is rotatably plugged with two control rods, the outer circumferential surface of each control rod is threadedly connected with a positioning plate, the front side of the fixing frame is provided with a mounting plate, the front side of the mounting plate is fixedly connected with a cutting knife, the outer surface of the cutting knife is fixedly connected with equidistantly arranged cutting cones, and the upper surface of the control box is fixedly connected with a handle.

[0007] By adopting the above scheme, the weeding device can be carried by the handle for use, which is convenient to carry and avoids the difficulty of carrying when using a larger weeding device. Since the weeding structure of the existing weeding device is not convenient to replace when damaged, the control lever can be rotated to drive the positioning plate to move, and the positioning plate drives the positioning rod to move out of the mounting plate, which is convenient for disassembly and replacement of the cutting knife, thereby improving the flexibility and practicality of the weeding device.

[0008] Optionally, the outer circumferential surface of the output shaft is fixedly connected to two connecting frames, and the outer circumferential surface of each connecting frame is fixedly sleeved with a sliding rod, and the outer circumferential surface of the sliding rod is slidably connected to the connecting plate through a hollow groove opened inside the connecting plate.

[0009] By adopting the above solution, the sliding rod can drive the connecting plate to reciprocate with the fixed rod as the fulcrum during the process of following the rotation of the output shaft, so that the cutting knife and the cutting cone can alternately reciprocate to complete the weeding operation.

[0010] Furthermore, a limiting ring 1 is fixedly sleeved on the outer circumferential surface of the sliding rod, and the outer circumferential surface of the limiting ring 1 is slidably connected to the connecting plate through a hollow groove provided inside the connecting plate.

[0011] By adopting the above solution, the connection between the sliding rod and the connecting plate is reinforced and restricted, so as to prevent the sliding rod from deviating from the track and increase the stability of the sliding rod during movement.

[0012] Furthermore, the outer circumferential surface of the control rod is fixedly sleeved with a second limiting ring, and the outer circumferential surface of the second limiting ring is rotatably connected to the inside of the fixing frame.

[0013] By adopting the above solution, the control rod is restricted, the sliding and deviation of the control rod is avoided, and the stability of the movement of the control rod is increased.

[0014] Furthermore, two limiting rods are fixedly inserted inside the fixing frame, and each of the limiting rods is slidably inserted into the interior of the positioning plate.

[0015] By adopting the above solution, the positioning plate is restricted to prevent the positioning plate from rotating along with the control rod, so that the positioning plate is always kept moving laterally.

[0016] Furthermore, a positioning rod is fixedly inserted inside the positioning plate, and the outer circumferential surface of the positioning rod is slidably inserted into the mounting plate through a hollow groove provided inside the mounting plate.

[0017] By adopting the above solution, the positioning of the mounting plate is completed by the positioning rod, thereby facilitating the installation and disassembly of the cutting knife, thereby improving the practicality of the weeding device.

[0018] Furthermore, a base is fixedly connected to the back of the control box, and a grip rod is inserted into the internal thread of the base.

[0019] By adopting the above scheme, the grip rod can be used for weeding as needed, avoiding the user from continuously bending over to weed, reducing the user's workload, improving work efficiency, and providing convenience for the user.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model drives the positioning plate to move by rotating the control rod, so that the positioning rod can be moved out from the inside of the mounting plate, thereby releasing the positioning restriction on the cutting knife, thereby facilitating the installation and disassembly of the weeding structure of the weeding device, avoiding the time-consuming maintenance when the weeding structure is damaged, and delaying the weeding operation. It solves the problem that the weeding structure of the existing weeding device is not convenient to repair and replace when damaged and has low practicality.

[0022] 2. The utility model has a simple structure, is easy to use, has a small size, can be picked up and placed at any time, occupies less space, is easy to carry and use, avoids the difficulty of carrying when using a larger weeding device, increases the burden of carrying and using by the user, reduces the flexibility of the weeding device, and facilitates the disassembly and replacement of the weeding structure, avoids the impact of damage to the weeding structure on the weeding operation, and increases the practicality of the weeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the output shaft structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the positioning plate structure of the utility model.

[0028] In the figure: 1. control box; 2. motor; 3. output shaft; 4. connecting frame; 5. sliding rod; 6. limit ring 1; 7. fixing rod; 8. collar; 9. connecting plate; 10. fixing frame; 11. control rod; 12. limit ring 2; 13. positioning plate; 14. limit rod; 15. positioning rod; 16. mounting plate; 17. cutting knife; 18. cutting cone; 19. base; 20. grip rod; 21. handle. DETAILED DESCRIPTION

[0029] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0030] See also Figure 1 - Figure 4 The utility model is a portable crop weeding device, comprising a control box 1, a motor 2 is fixedly connected to the upper surface of the control box 1, an output shaft 3 is rotatably connected to the inside of the motor 2, a fixed rod 7 is fixedly connected to the inner bottom wall of the control box 1, and two collars 8 are rotatably sleeved on the outer circumference of the fixed rod 7. Specifically, the inner diameter of the contact portion between the collar 8 and the fixed rod 7 is smaller than the outer diameter of the fixed rod 7, and a connecting plate 9 is fixedly connected to the outer circumference of each collar 8;

[0031] The outer circumference of the output shaft 3 is fixedly connected to two connecting frames 4. Specifically, the angle between the two connecting frames 4 is 180 degrees. The outer circumference of each connecting frame 4 is fixedly sleeved with a slide bar 5. The outer circumference of the slide bar 5 is slidably connected to the connecting plate 9 through a slot provided inside the connecting plate 9. The outer circumference of the slide bar 5 is fixedly sleeved with a limit ring 6. The outer circumference of the limit ring 6 is slidably connected to the connecting plate 9 through a slot provided inside the connecting plate 9, thereby increasing the stability of the connection between the slide bar 5 and the connecting plate 9.

[0032] In this embodiment, after the motor 2 is started, it will drive the two connecting frames 4 to rotate through the output shaft 3, and the connecting frame 4 will drive the upper and lower connecting plates 9 to perform reciprocating rotation in opposite directions with the fixed rod 7 as the fulcrum through the sliding rod 5;

[0033] In a preferred embodiment, the outer circumference of each collar 8 is fixedly connected to a fixing frame 10, and two control rods 11 are rotatably inserted inside the fixing frame 10. The outer circumference of the control rod 11 is fixedly sleeved with a second limiting ring 12, and the outer circumference of the second limiting ring 12 is rotatably connected to the inside of the fixing frame 10 to limit the control rod 11 and prevent the control rod 11 from sliding and deviating.

[0034] like Figure 4 As shown, the outer circumferential surface of each control rod 11 is threadedly connected with a positioning plate 13, and two limiting rods 14 are fixedly inserted inside the fixing frame 10. Each limiting rod 14 is slidably inserted into the inside of the positioning plate 13 to limit the positioning plate 13 to prevent the positioning plate 13 from rotating and increase the stability of the movement of the positioning plate 13. A mounting plate 16 is provided on the front of the fixing frame 10;

[0035] A positioning rod 15 is fixedly inserted inside the positioning plate 13, and the outer circumferential surface of the positioning rod 15 is slidably inserted with the mounting plate 16 through the empty groove opened inside the mounting plate 16. The mounting plate 16 is positioned and restricted by the positioning rod 15, which facilitates the installation and removal of the mounting plate 16. A cutting knife 17 is fixedly connected to the front of the mounting plate 16, and the outer surface of the cutting knife 17 is fixedly connected to the cutting cones 18 arranged at equal distances. A handle 21 is fixedly connected to the upper surface of the control box 1;

[0036] In this embodiment, when the connecting plate 9 reciprocates and rotates in opposite directions, the fixing frame 10 drives the cutting knife 17 and the cutting cone 18 to reciprocate and rotate in an interlaced manner with the fixing rod 7 as the center. At this time, the weeding operation can be completed by aligning the cutting knife 17 and the cutting cone 18 with the roots of the grass. When the cutting knife 17 or the cutting cone 18 is damaged, the control rod 11 can be rotated to drive the positioning rod 15 to move out of the inside of the mounting plate 16 through the positioning plate 13 to release the positioning restriction on the mounting plate 16, and then replace the new cutting knife 17, and then rotate the control rod 11 to reposition it.

[0037] like Figure 1 As shown, a base 19 is fixedly connected to the back of the control box 1, and a grip rod 20 is inserted into the internal thread of the base 19. The user can use grip rods 20 of different lengths to perform operations as needed, avoiding continuous bending over for weeding, providing convenience for the user and reducing the user's workload. The user can directly pick up the weeding device through the handle 21 to carry or use it.

[0038] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A portable crop weeding device, comprising a control box (1), characterized in that: The upper surface of the control box (1) is fixedly connected to a motor (2), the inside of the motor (2) is rotatably connected to an output shaft (3), the inner bottom wall of the control box (1) is fixedly connected to a fixing rod (7), the outer circumferential surface of the fixing rod (7) is rotatably sleeved with two collars (8), the outer circumferential surface of each collar (8) is fixedly connected to a connecting plate (9), the outer circumferential surface of each collar (8) is fixedly connected to a fixing frame (10), the inside of the fixing frame (10) is rotatably plugged with two control rods (11), the outer circumferential surface of each control rod (11) is threadedly connected to a positioning plate (13), the front of the fixing frame (10) is provided with a mounting plate (16), the front of the mounting plate (16) is fixedly connected to a cutting knife (17), the outer surface of the cutting knife (17) is fixedly connected to cutting cones (18) arranged equidistantly, and the upper surface of the control box (1) is fixedly connected to a handle (21).

2. A portable crop weeding device according to claim 1, characterized in that: The outer circumferential surface of the output shaft (3) is fixedly connected to two connecting frames (4), and the outer circumferential surface of each connecting frame (4) is fixedly sleeved with a sliding rod (5), and the outer circumferential surface of the sliding rod (5) is slidably connected to the connecting plate (9) through a hollow groove provided inside the connecting plate (9).

3. A portable crop weeding device according to claim 2, characterized in that: The outer circumferential surface of the slide rod (5) is fixedly sleeved with a limit ring (6), and the outer circumferential surface of the limit ring (6) is slidably connected to the connecting plate (9) via a hollow groove provided inside the connecting plate (9).

4. The portable crop weeding device according to claim 1, characterized in that: The outer circumferential surface of the control rod (11) is fixedly sleeved with a second limiting ring (12), and the outer circumferential surface of the second limiting ring (12) is rotatably connected to the interior of the fixing frame (10).

5. The portable crop weeding device according to claim 1, characterized in that: Two limiting rods (14) are fixedly inserted inside the fixing frame (10), and each limiting rod (14) is slidably inserted into the inside of the positioning plate (13).

6. The portable crop weeding device according to claim 1, characterized in that: A positioning rod (15) is fixedly inserted inside the positioning plate (13), and the outer circumferential surface of the positioning rod (15) is slidably inserted into the mounting plate (16) through a hollow groove provided inside the mounting plate (16).

7. The portable crop weeding device according to claim 1, characterized in that: The back of the control box (1) is fixedly connected to a base (19), and the internal thread of the base (19) is plugged with a grip rod (20).

Images