A weeder that avoids damaging seedlings

Abstract

The utility model provides a kind of avoid seedling's soil loosening weeder, belong to the technical field of soil loosening weeding device, including protective component, including support shaft and arc protective plate, the outside rotation of support shaft is connected with disc, the inside fixed connection of disc has sawtooth plate, the outside fixed connection of support shaft has U plate, the top fixed connection of U plate has handle cylinder, the outside fixed connection of U plate has scraping plate, the outside of U plate is provided with positioning assembly, the inside of positioning assembly is provided with extrusion assembly. By being set up protective component, effectively avoid the damage to seedling in working process, by changing the position of rotating plate and being limited, it is convenient to adjust the angle of arc protective plate, when soil loosening weeder is inclined and moves, arc protective plate can contact seedling stem before sawtooth plate, form physical obstruction, fundamentally prevent rotating sawtooth plate directly impacting or cutting seedling.

Description

Technical Field

[0001] This utility model belongs to the technical field of soil loosening and weeding devices, specifically relating to a soil loosening and weeding device that avoids damaging seedlings. Background Technology

[0002] Existing soil loosening and fertilizing devices typically consist of a disc, a serrated plate, a U-shaped plate, and a handle. In use, the operator holds the handle and pushes the device to move it, causing the disc to rotate and, with the help of the serrated plates, to loosen the soil and remove weeds.

[0003] In actual use, when the soil loosening and weeding device tilts and moves close to the crop row, the hard serrated plate is very likely to come into contact with and collide with the stems or roots of the crop seedlings, thereby scratching or cutting the fragile tissues of the seedlings. This not only affects the final yield and quality of the crop, but in severe cases, it can even lead to the death of the seedlings, resulting in missing seedlings and broken rows, thus causing losses. Utility Model Content

[0004] The purpose of this invention is to provide a soil loosening and weeding device that avoids damaging seedlings, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A soil loosening and weeding device to avoid damaging seedlings includes a protective component comprising a support shaft and an arc-shaped protective plate. A disc is rotatably connected to the outside of the support shaft, and a serrated plate is fixedly connected to the inside of the disc. A U-shaped plate is fixedly connected to the outside of the support shaft, and a handle cylinder is fixedly connected to the top of the U-shaped plate. A scraper is fixedly connected to the outside of the U-shaped plate, and a positioning component is provided on the outside of the U-shaped plate. A squeezing component is provided inside the positioning component. A warning component includes a cylinder fixedly connected inside the U-shaped plate, and a limit component is provided inside the cylinder.

[0006] In a preferred embodiment of this utility model, the positioning component includes an arc-shaped block, which is fixedly connected to the inner wall of the U-shaped plate. A rotating plate is slidably connected to the outside of the arc-shaped block, and the rotating plate is fixedly connected to the arc-shaped protective plate. A housing is fixedly connected to the outside of the U-shaped plate, and a post is slidably connected to the inside of the U-shaped plate. A square tube is fixedly connected to the outside of the post, and a triangular block is fixedly connected to the inner wall of the square tube.

[0007] As a preferred embodiment of this utility model, a through hole is provided inside the rotating plate at the position corresponding to the insertion post, and the insertion post is slidably connected in the through hole.

[0008] In a preferred embodiment of this utility model, the extrusion assembly includes a guide post, which is fixedly connected to the outside of the U-shaped plate and to the housing. An extension block is fixedly connected to the outside of the square tube, and a first spring is provided between the outside of the extension block and the housing. An extrusion plate is slidably connected to the inside of the housing, and the extrusion plate contacts the triangular block. A baffle is fixedly connected to the outside of the extrusion plate and to the inside of the extrusion plate.

[0009] In a preferred embodiment of this utility model, a through hole is provided inside the extension block at a position corresponding to the guide post, and the guide post is slidably connected inside the through hole.

[0010] In a preferred embodiment of this utility model, the limiting component includes a threaded sleeve, which is fixedly connected to the inner side of the rotating plate. A positioning block is slidably connected to the outside of the threaded sleeve, and a bolt is threadedly connected to the inside of the threaded sleeve. An extension plate is fixedly connected to the inside of the positioning block, and a metal sheet is fixedly connected to the inside of the extension plate. A slider is slidably connected to the inside of the cylinder, and a second spring is provided between the top of the slider and the cylinder. A metal column is fixedly connected to the bottom of the slider, and the metal column contacts the metal sheet.

[0011] As a preferred embodiment of this utility model, a through hole is provided inside the positioning block at the position corresponding to the bolt, and the bolt passes through the through hole.

[0012] As a preferred embodiment of this utility model, a through hole is provided inside the cylinder at a position corresponding to the metal column, and the metal column is slidably connected in the through hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The protective components effectively prevent damage to seedlings during operation. By changing the position of the rotating plate and limiting its movement, the angle of the arc-shaped protective plate can be adjusted. When the soil loosening and weeding device tilts, the arc-shaped protective plate can contact the seedling stem before the saw blade, forming a physical barrier. This fundamentally prevents the rotating saw blade from directly impacting or cutting the seedling, protecting the integrity of the plant and thus avoiding yield reduction and seedling death caused by seedling damage, thereby improving the safety and reliability of the operation.

[0014] 2. With the reminder component, after the rotating plate is adjusted to the appropriate angle, the positioning block is installed to facilitate the positioning of the metal plate, thus adding a memory function to the angle adjustment of the rotating plate. After the curved protective plate is disassembled and cleaned, the metal plate is tapped by the metal column to facilitate quick positioning of the rotating plate and the curved protective plate, making it easy to quickly position the curved protective plate at the appropriate angle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram showing the positional relationship of the arc-shaped blocks in this utility model; Figure 3 This is a schematic diagram showing the positional relationship of the triangular blocks in this utility model; Figure 4 This is a schematic diagram showing the positional relationship of the pressing rod of this utility model; Figure 5 This is a schematic diagram of the overall structure of the extrusion assembly of this utility model; Figure 6 This is a schematic diagram showing the positional relationship of the bolts in this utility model; Figure 7 This is a schematic diagram showing the positional relationship of the second spring of this utility model.

[0016] In the diagram: 10. Support shaft; 11. Arc-shaped protective plate; 12. Disc; 13. Serrated plate; 14. U-shaped plate; 15. Handle cylinder; 16. Scraper blade; 17. Positioning assembly; 171. Arc-shaped block; 172. Rotating plate; 173. Housing; 174. Insert post; 175. Square tube; 176. Triangular block; 18. Extrusion assembly; 181. Guide post; 182. Extension block; 183. First spring; 184. Extrusion plate; 185. Baffle; 186. Pressing rod; 20. Cylinder; 21. Limiting assembly; 211. Threaded sleeve; 212. Positioning block; 213. Bolt; 214. Extension plate; 215. Metal sheet; 216. Slider; 217. Second spring; 218. Metal column. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0018] Reference Figures 1-5This is the first embodiment of the present invention. This embodiment provides a soil loosening and weeding device that avoids damaging seedlings. It includes protective components, including a support shaft 10 and an arc-shaped protective plate 11. A disc 12 is rotatably connected to the outside of the support shaft 10. A serrated plate 13 is fixedly connected to the inside of the disc 12. A U-shaped plate 14 is fixedly connected to the outside of the support shaft 10. A handle cylinder 15 is fixedly connected to the top of the U-shaped plate 14. A scraper 16 is fixedly connected to the outside of the U-shaped plate 14. A positioning component 17 is provided on the outside of the U-shaped plate 14. A squeezing component 18 is provided inside the positioning component 17.

[0019] The support shaft 10 and the U-shaped plate 14 together form the core support frame of the entire device. The disc 12 and the serrated plate 13 are the main components for performing the function of loosening soil and removing weeds. Several serrated plates 13 are installed at equal intervals. The handle cylinder 15 is used for the installation of the handle. The operator first installs the push handle on the handle cylinder 15, holds the push handle and pushes the device forward. The disc 12 rotates as the device moves forward, driving the serrated plate 13 to loosen soil and remove weeds. When it is necessary to adjust the initial angle of the arc-shaped protective plate 11, it is done by operating the positioning component 17 and the squeezing component 18.

[0020] Furthermore, the positioning component 17 includes an arc-shaped block 171, which is fixedly connected to the inner wall of the U-shaped plate 14. A rotating plate 172 is slidably connected to the outside of the arc-shaped block 171. The rotating plate 172 is fixedly connected to the arc-shaped protective plate 11. A housing 173 is fixedly connected to the outside of the U-shaped plate 14. An insert post 174 is slidably connected to the inside of the U-shaped plate 14. A square tube 175 is fixedly connected to the outside of the insert post 174. A triangular block 176 is fixedly connected to the inner wall of the square tube 175. The arc-shaped block 171 provides a precise sliding trajectory for the rotating plate 172 and the arc-shaped protective plate 11 fixed thereto, ensuring the stability of angle adjustment. The insert post 174, driven by the square tube 175, locks and releases the rotating plate 172 by inserting or withdrawing from it, making it easy to adjust the angle of the arc-shaped protective plate 11 according to the operator's usage habits.

[0021] The rotating plate 172 has a through hole at the position corresponding to the insertion post 174, and the insertion post 174 is slidably connected in the through hole. The through hole on the rotating plate 172 and the insertion post 174 cooperate to form a reliable pin locking mechanism. When the insertion post 174 is inserted into the through hole under the drive of the pressing component 18, the angle of the rotating plate 172 is fixed, thereby locking the protective position of the arc-shaped protective plate 11.

[0022] Furthermore, the extrusion assembly 18 includes a guide post 181, which is fixedly connected to the outside of the U-shaped plate 14 and to the housing 173. An extension block 182 is fixedly connected to the outside of the square tube 175. A first spring 183 is provided between the outside of the extension block 182 and the housing 173. An extrusion plate 184 is slidably connected inside the housing 173, contacting the triangular block 176. A baffle 185 is fixedly connected to the outside of the extrusion plate 184. A baffle 185 is fixedly connected to the inner side of the plate 184. The guide post 181 provides guidance for the movement of the extension block 182 and the square tube 175. During operation, the user presses down the pressing rod 186, which drives the pressing plate 184 to move down and press the inclined surface of the triangular block 176, forcing the square tube 175 and the insert post 174 to move outward against the elastic force of the first spring 183, thereby releasing the lock. After the baffle 185 is released, all parts automatically reset under the action of the first spring 183, and the insert post 174 is locked back in.

[0023] The extension block 182 has a through hole at the position corresponding to the guide post 181, and the guide post 181 is slidably connected in the through hole. The guide post 181 constrains the movement trajectory of the extension block 182, ensuring that the insertion post 174 can be accurately aligned and smoothly inserted into or removed from the through hole on the rotating plate 172.

[0024] In use, by installing the push handle inside the handle cylinder 15, when it is necessary to adjust the protective angle of the arc-shaped protective plate 11, the operator moves the pressing rod 186 downward, causing the squeezing plate 184 to move downward and squeeze the triangular block 176, thereby causing the square cylinder 175 to move outward, causing the extension block 182 to squeeze the first spring 183, thereby causing the insertion post 174 to move away from the rotating plate 172. With the cooperation of the arc-shaped block 171, the angle between the rotating plate 172 and the arc-shaped protective plate 11 is adjusted, so that the arc-shaped protective plate 11 is adjusted to a suitable angle according to the operator's height, so that it does not contact the ground. By releasing the pressing rod 186, under the elastic action of the first spring 183, the insertion post 174 returns to its original position and slides into the through holes equidistantly opened inside the rotating plate 172, completing the limiting work of the rotating plate 172 and the arc-shaped protective plate 11. By holding the handle and pushing the U-shaped plate 14, the operator can carry out soil loosening and weeding work with the cooperation of the serrated plate 13. Example 2

[0025] Reference Figures 6-7 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a reminder component, which includes a cylinder 20. The cylinder 20 is fixedly connected to the inside of the U-shaped plate 14, and a limit component 21 is provided inside the cylinder 20.

[0026] Furthermore, the limiting component 21 includes a threaded sleeve 211, which is fixedly connected to the inner side of the rotating plate 172. A positioning block 212 is slidably connected to the outside of the threaded sleeve 211. A bolt 213 is threadedly connected to the inside of the threaded sleeve 211. An extension plate 214 is fixedly connected to the inner side of the positioning block 212. A metal sheet 215 is fixedly connected to the inside of the extension plate 214. A slider 216 is slidably connected to the inside of the cylinder 20. A second spring 217 is provided between the top of the slider 216 and the cylinder 20. A metal post 218 is fixedly connected to the bottom of 16. The metal post 218 contacts the metal plate 215. When the arc-shaped protective plate 11 is at the optimal angle, the positioning block 212 is put on the threaded sleeve 211 and the bolt 213 is tightened to complete the position memory. When disassembling and reassembling, the arc-shaped protective plate 11 is rotated. When the metal plate 215 rotates with the rotating plate 172 to the bottom of the metal post 218, the metal post 218 bounces up under the action of the second spring 217 and strikes the metal plate 215, issuing a prompt signal to indicate that it has been reset to the memory position.

[0027] The positioning block 212 has a through hole at the position corresponding to the bolt 213, and the bolt 213 passes through the through hole. The through hole on the positioning block 212 allows the bolt 213 to pass through. When the bolt 213 is screwed into the threaded sleeve 211, the clamping force generated by tightening the bolt 213 will firmly fix the positioning block 212 on the rotating plate 172.

[0028] The cylinder 20 has a through hole at the position corresponding to the metal column 218, and the metal column 218 is slidably connected in the through hole. The through hole provides precise guidance for the up and down movement of the metal column 218, ensuring that the metal column 218 always maintains a perpendicular relationship with the metal sheet 215.

[0029] In use, after the rotating plate 172 is positioned to the appropriate location, the positioning block 212 is fitted onto the outside of the threaded sleeve 211 in the appropriate position. With the cooperation of the bolt 213, the positioning block 212 is positioned to complete the positioning of the extension plate 214 and the metal piece 215. When the arc-shaped protective plate 11 needs to be disassembled and cleaned, the extension plate 214 comes into contact with the metal column 218 after the rotating plate 172 is reinstalled. This causes the slider 216 to move upward a certain distance and compress the second spring 217. When the metal piece 215 moves to the bottom of the metal column 218, the metal column 218 strikes the metal piece 215 under the elastic action of the second spring 217, thus generating sound feedback. This quickly positions the rotating plate 172 to the appropriate location, facilitating the rapid positioning and installation of the arc-shaped protective plate 11.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A soil loosening and weeding device that avoids damaging seedlings, characterized in that: include, The protective component includes a support shaft (10) and an arc-shaped protective plate (11). A disc (12) is rotatably connected to the outside of the support shaft (10). A serrated plate (13) is fixedly connected to the inside of the disc (12). A U-shaped plate (14) is fixedly connected to the outside of the support shaft (10). A handle cylinder (15) is fixedly connected to the top of the U-shaped plate (14). A scraper (16) is fixedly connected to the outside of the U-shaped plate (14). A positioning component (17) is provided on the outside of the U-shaped plate (14). An extrusion component (18) is provided inside the positioning component (17). The reminder component includes a cylinder (20) which is fixedly connected to the inside of a U-shaped plate (14), and a limit assembly (21) is provided inside the cylinder (20).

2. The soil loosening and weeding device according to claim 1, characterized in that: The positioning component (17) includes an arc-shaped block (171), which is fixedly connected to the inner wall of the U-shaped plate (14). A rotating plate (172) is slidably connected to the outside of the arc-shaped block (171). The rotating plate (172) is fixedly connected to the arc-shaped protective plate (11). A housing (173) is fixedly connected to the outside of the U-shaped plate (14). A plug (174) is slidably connected to the inside of the U-shaped plate (14). A square tube (175) is fixedly connected to the outside of the plug (174). A triangular block (176) is fixedly connected to the inner wall of the square tube (175).

3. The soil loosening and weeding device according to claim 2, characterized in that: The rotating plate (172) has a through hole at the position corresponding to the insertion post (174), and the insertion post (174) is slidably connected in the through hole.

4. A soil loosening and weeding device to avoid damaging seedlings according to claim 2, characterized in that: The extrusion assembly (18) includes a guide post (181), which is fixedly connected to the outside of the U-shaped plate (14). The guide post (181) is fixedly connected to the housing (173). An extension block (182) is fixedly connected to the outside of the square tube (175). A first spring (183) is provided between the outside of the extension block (182) and the housing (173). An extrusion plate (184) is slidably connected inside the housing (173). The extrusion plate (184) contacts the triangular block (176). A baffle (185) is fixedly connected to the outside of the extrusion plate (184). A baffle (185) is fixedly connected to the inside of the extrusion plate (184).

5. A soil loosening and weeding device to avoid damaging seedlings according to claim 4, characterized in that: The extension block (182) has a through hole at the position corresponding to the guide post (181), and the guide post (181) is slidably connected in the through hole.

6. A soil loosening and weeding device to avoid damaging seedlings according to claim 4, characterized in that: The limiting component (21) includes a threaded sleeve (211), which is fixedly connected to the inner side of the rotating plate (172). A positioning block (212) is slidably connected to the outside of the threaded sleeve (211). A bolt (213) is threadedly connected to the inside of the threaded sleeve (211). An extension plate (214) is fixedly connected to the inside of the positioning block (212). A metal sheet (215) is fixedly connected to the inside of the extension plate (214). A slider (216) is slidably connected to the inside of the cylinder (20). A second spring (217) is provided between the top of the slider (216) and the cylinder (20). A metal column (218) is fixedly connected to the bottom of the slider (216). The metal column (218) contacts the metal sheet (215).

7. A soil loosening and weeding device to avoid damaging seedlings according to claim 6, characterized in that: The positioning block (212) has a through hole at the position corresponding to the bolt (213), and the bolt (213) passes through the through hole.

8. A soil loosening and weeding device to avoid damaging seedlings according to claim 6, characterized in that: The cylinder (20) has a through hole at the position corresponding to the metal column (218), and the metal column (218) is slidably connected in the through hole.

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