A new type of cutting tooth

By designing a new type of blade with an anti-tangling blade and an inclined plate structure, the problems of weed root entanglement and soil protection have been solved, achieving efficient weeding and convenient cleaning, and improving the operability and efficiency of the equipment.

CN224419295UActive Publication Date: 2026-06-30GUANGXI ELECTRICAL POLYTECHNIC INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI ELECTRICAL POLYTECHNIC INST
Filing Date
2025-08-07
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of agricultural machinery and discloses a novel blade tooth, including a protective shell, a blade shaft, three blade discs, and multiple blade tooth bodies. Holes are formed on the lower end faces of both sides of the outer wall of the protective shell. Four inclined plates are fixedly installed on the top inner surface of the protective shell. A cleaning cover is hinged to the front end of the upper end face of the protective shell via a pin. Four anti-entanglement blades are fixedly installed on the outer wall of the blade shaft. Grooves are formed on both sides and the upper and lower end faces of the outer walls of the three blade discs. Insert blocks are fixedly installed on one side of the outer wall of each of the multiple blade tooth bodies. A handle is fixedly installed on the upper end face of the cleaning cover. A connecting block is fixedly installed on the upper end face of the cleaning cover at the rear end face of the handle. The connecting block is fixedly connected to the upper end face of the protective shell by screws. In this utility model, the blade tooth can effectively prevent weed roots from entangled in the blade shaft and can also quickly clean the mud inside the protective shell.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a novel cutting tooth. Background Technology

[0002] Due to its high efficiency, durability, and adaptability, the new type of cutting blade has been widely used in agriculture, landscaping, forestry management, and public facility maintenance. Using this new cutting blade device for weeding in rice cultivation can solve the problems of high pollution from chemical weeding and low efficiency of manual weeding, while also meeting the demands of modern agriculture for high efficiency, environmental protection, and precision operations.

[0003] However, when using common new-type blades to weed rice paddies, weed roots easily become entangled in the blade shaft, increasing the motor load. Furthermore, a large amount of mud is thrown into the protective casing of these blades, increasing the overall weight of the integrated equipment and making operation more difficult.

[0004] Therefore, this application provides a novel cutting tooth to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel blade tooth that can effectively prevent weeds and roots from entangled in the blade shaft and can also quickly clean the mud inside the protective shell.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A novel type of cutting tooth includes a protective shell, a cutting shaft, three cutting discs, and multiple cutting tooth bodies. Holes are formed on the lower ends of both sides of the outer wall of the protective shell. Four inclined plates are fixedly installed on the top inner surface of the protective shell. A cleaning cover is hinged to the upper end of the protective shell near the front end via a pin. Four anti-winding blades are fixedly installed on the outer wall of the cutting shaft. Grooves are formed on both sides and the upper and lower ends of the outer walls of the three cutting discs. Insert blocks are fixedly installed on one side of the outer wall of each of the multiple cutting tooth bodies. Four cutting tooth bodies are mounted on the same cutting disc.

[0008] Furthermore, a handle is fixedly provided on the upper end face of the cleaning cover, and a connecting block is fixedly provided on the upper end face of the cleaning cover at the rear end face of the handle. The connecting block is fixedly connected to the upper end face of the protective shell by screws.

[0009] Furthermore, the two ends of the outer wall of the cutter shaft are respectively rotatably disposed inside two holes.

[0010] Furthermore, the three cutter discs are fixedly disposed around the cutter shaft and located in the middle of the four anti-winding blades.

[0011] Furthermore, the plurality of insert blocks are slidably disposed inside the plurality of grooves and are all fastened by the threaded engagement of bolts and nuts.

[0012] Furthermore, the multiple blade bodies are respectively rotatably disposed between the four inclined plates.

[0013] Furthermore, all of the aforementioned blade bodies are rotatably disposed inside the protective shell.

[0014] This utility model has the following beneficial effects:

[0015] 1. The present invention proposes a novel blade tooth. When using the blade tooth, when weed roots are wrapped around the outside of the blade shaft, the blade tooth rotates with the blade shaft to surround the weed roots around the anti-winding blade. When the anti-winding blade contacts the inclined plate, the blade of the anti-winding blade cuts off the weed roots with the assistance of the inclined plate.

[0016] 2. The present invention proposes a novel blade tooth, wherein the upper end of the protective shell of the blade tooth is hinged with a cleaning cover by a pin. After using the blade to clean weeds for a period of time, the screw on the connecting block can be unscrewed and the cleaning cover opened to clean the mud inside. Attached Figure Description

[0017] Figure 1 This is a bottom view of one side of the entire utility model;

[0018] Figure 2 This is a bottom view of the other side of the entire utility model;

[0019] Figure 3 This is a bottom view of the protective shell of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning plate connection structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cutter shaft connection structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the cutter head connection structure of this utility model.

[0023] Legend:

[0024] 1. Protective shell; 2. Hole; 3. Cutter shaft; 4. Cutter disc; 5. Cutter tooth body; 6. Bolt; 7. Nut; 8. Inclined plate; 9. Cleaning cover; 10. Pin; 11. Anti-winding blade; 12. Handle; 13. Connecting block; 14. Insert block; 15. Groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 — Figure 6 This utility model provides an embodiment of a novel cutting tooth, comprising a protective shell 1, a cutting shaft 3, three cutting discs 4, and multiple cutting tooth bodies 5. Holes 2 are provided on the lower end faces of both sides of the outer wall of the protective shell 1. The two ends of the outer wall of the cutting shaft 3 are rotatably disposed within two of the holes 2. The three cutting discs 4 are fixedly disposed around the cutting shaft 3 and located between four anti-winding blades 11. Four inclined plates 8 are fixedly disposed on the inner top surface of the protective shell 1, and the multiple cutting tooth bodies 5 are rotatably disposed between the four inclined plates 8. A cleaning cover 9 is hinged to the upper end face of the protective shell 1 near the front end via a pin 10. Four anti-winding blades are fixedly disposed on the outer wall of the cutting shaft 3. The blade 11 has grooves 15 on both sides and the top and bottom surfaces of the three blade discs 4. Multiple blade teeth 5 are rotatably mounted inside the protective shell 1. Insert blocks 14 are fixedly mounted on one side of the outer wall of each of the multiple blade teeth 5. Four blade teeth 5 are mounted on the same blade disc 4. Multiple insert blocks 14 are slidably mounted inside multiple grooves 15 and are fastened by the threaded engagement of bolts 6 and nuts 7. A handle 12 is fixedly mounted on the upper surface of the cleaning cover 9. A connecting block 13 is fixedly mounted on the upper surface of the cleaning cover 9 at the rear end of the handle 12. The connecting block 13 is fixedly connected to the upper surface of the protective shell 1 by screws.

[0027] Specifically, when using the cutting teeth, first insert the inserts 14 of multiple cutting tooth bodies 5 into multiple grooves 15, and then tighten them with multiple nuts 7 and bolts 6. This allows connection to the integrated equipment for rice weeding. During weeding, the multiple cutting tooth bodies 5 can cut the weeds and press them into the mud, preventing them from seeing sunlight and photosynthesizing. If weed roots are wrapped around the outer edge of the cutting shaft 3, rotating the cutting shaft 3 causes the blades of multiple anti-winding blades 11 to contact multiple inclined plates 8, cutting off the wrapped weed roots. When using the cutting teeth for extended periods, the machine can be stopped to clean the mud inside the protective shell 1. Unscrew the screws at the top of the connecting block 13 and open the cleaning cover 9 to clean the mud inside. Over time, some cutting tooth bodies 5 may become damaged and unusable. The corresponding bolts 6 and nuts 7 can be removed, and the damaged cutting tooth body 5 can be replaced. The cutter shaft 3, rotatably mounted inside two holes 2, drives four cutter discs 4, multiple blade bodies 5, four anti-tangling blades 11, multiple bolts 6, and multiple nuts 7 to rotate via the integrated device. The three cutter discs 4 drive the multiple blade bodies 5 to cut weeds. Multiple inclined plates 8, engaging with the blades of the multiple anti-tangling blades 11, cut off weed roots entangled around the cutter shaft 3. The cleaning cover 9 is secured to the protective shell 1 using connecting blocks 13 and screws to prevent it from detaching. The protective shell 1 prevents mud from being flung into the integrated device by the multiple blade bodies 5. Opening the cleaning cover 9 allows for quick cleaning of the mud inside the protective shell 1. Multiple inserts 14 are inserted into the grooves 15 and secured with nuts 7 and bolts 6, allowing for quick installation or removal of the blade bodies 5.

[0028] Working principle: Multiple blade bodies 5 are installed inside the grooves 15 of three cutter discs 4 using multiple bolts 6 and multiple nuts 7. The blades are then connected to the integrated equipment to clean weeds from rice paddies. During the cleaning process, the blades of multiple anti-tangling blades 11, in conjunction with multiple inclined plates 8, can cut off the tangled weed roots. If there is too much mud inside the protective shell 1, unscrew the screws at the top of the connecting block 13 and open the cleaning cover 9 to clean the mud inside.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of cutter tooth comprising a protective shell (1), a cutter shaft (3), three cutter discs (4) and a plurality of cutter tooth bodies (5), characterized in that: Holes (2) are provided on both sides of the lower end face of the outer wall of the protective shell (1). Four inclined plates (8) are fixedly provided on the inner top surface of the protective shell (1). A cleaning cover (9) is hinged to the upper end face of the protective shell (1) near the front end by a pin (10). Four anti-winding blades (11) are fixedly provided on the outer wall of the cutter shaft (3). Grooves (15) are provided on both sides and the upper and lower end faces of the outer walls of the three cutter discs (4). Insert blocks (14) are fixedly provided on one side of the outer wall of the multiple cutter tooth bodies (5). Four of the multiple cutter tooth bodies (5) are installed on the same cutter disc (4).

2. The novel cutting tooth according to claim 1, characterized in that: A handle (12) is fixedly provided on the upper end face of the cleaning cover (9), and a connecting block (13) is fixedly provided on the upper end face of the cleaning cover (9) at the rear end face of the handle (12). The connecting block (13) is fixedly connected to the upper end face of the protective shell (1) by screws.

3. The novel cutting tooth according to claim 1, characterized in that: The two ends of the outer wall of the cutter shaft (3) are respectively rotatably set inside the two holes (2).

4. The novel cutting tooth according to claim 1, characterized in that: The three cutter discs (4) are fixedly arranged around the cutter shaft (3) and located in the middle of the four anti-winding blades (11).

5. A novel cutting tooth according to claim 1, characterized in that: The multiple inserts (14) are slidably disposed inside the multiple grooves (15) and are all fastened by the threaded engagement of bolts (6) and nuts (7).

6. A novel cutting tooth according to claim 1, characterized in that: Multiple blade bodies (5) are rotatably disposed between the four inclined plates (8).

7. A novel cutting tooth according to claim 1, characterized in that: Multiple blade bodies (5) are rotatably disposed inside the protective shell (1).