Prevention and removal device for tribulus terrestris

Abstract

The utility model discloses a long tribulus terrestris grass preventing and removing device which comprises a horizontally-arranged rake body, an operating rod is installed on the rake body in an upward inclined mode, a plurality of triangular rake teeth are horizontally and evenly distributed and connected to the rake body in the length direction, telescopic clamping tooth assemblies are arranged on the two sides of the roots of the rake teeth, and the telescopic clamping tooth assemblies are connected with the operating rod. The rake body is provided with a wedge block driving assembly used for driving the telescopic clamping tooth assembly to stretch out and draw back. The device has the advantages that the telescopic clamping teeth are arranged on the two sides of the rake teeth, the wedge block driving assembly is designed to drive the clamping teeth to stretch out and draw back, when the operating rod is rotated to pull out long tribulus terrestris plants, the wedge block driving assembly can be automatically triggered, the clamping teeth are driven to clamp stalks of the long tribulus terrestris, and therefore the long tribulus terrestris plants are pulled out. The clamping teeth are automatically loosened after pulling, cleaning of the clamping teeth and the rake teeth and automatic falling of the plants are facilitated, use is faster and more convenient, and the device is worthy of large-scale application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of weeding equipment, in particular to a device for controlling long-thorny tribulus terrestris. Background Art

[0002] Long-spined Tribulus terrestris is a vicious invasive alien species with the characteristics of high stress resistance and high reproductive capacity. After invading grasslands or farmlands, it competes with other plants for resources such as light, water, and fertilizer, inhibits the growth of other plants, and affects the yield of farmland, grassland community structure, and biodiversity. In addition, its thorny buds can easily injure humans and animals and damage small tires. Currently, the invasion of long-spined Tribulus terrestris is controlled by manual mechanical eradication as the main method and chemical control as the auxiliary method. When performing manual mechanical eradication, a weeding rake is usually used as a tool. The structure of the weeding rake includes a long rake body, on which a number of triangular rake teeth are arranged along the length direction. An operating rod is installed on the rake body in an upward tilted manner. When removing long-thorn thorn grass, the user first holds the operating rod to rake the ground so that the stems of the long-thorn thorn grass enter between the rake teeth, and then rotates the operating rod outward to pry, thereby removing the long-thorn thorn grass plants. The weeding rake tool of this structure generally has the following disadvantages: 1. The rake teeth cannot clamp and fix the stems of the thorn grass. When the operating rod is rotated to pry the plant, especially when the soil is hard, the stem and the rake teeth are prone to relative sliding, resulting in low efficiency in removing the thorn grass; 2. After the removal, the thorn grass plant is easily stuck between the rake teeth and is difficult to fall off, making it difficult to clean, affecting normal use. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model aims to provide a device for controlling long-thorn thorn grass to solve the technical problems of low efficiency in removing thorn grass and difficulty in cleaning of the weeding rake in the prior art.

[0005] (II) Technical solution

[0006] The content of the utility model: A device for controlling long thorny grass, which includes a horizontally arranged rake body, an operating rod is installed on the rake body in an inclined upward manner, a plurality of triangular rake teeth are connected to the rake body in a horizontally evenly distributed manner along the length direction, telescopic clamping tooth assemblies are arranged on both sides of the root of the rake teeth, a first slide groove matching the telescopic clamping tooth assembly is opened in the rake body, the telescopic clamping tooth assembly is slidably connected to the first slide groove left and right, a wedge drive assembly for driving the telescopic clamping tooth assembly to retract and retract is arranged on the rake body, a second slide groove matching the wedge drive assembly is opened vertically upward at the bottom end of the rake body, the wedge drive assembly is slidably connected to the second slide groove up and down, and the wedge surface of the telescopic clamping tooth assembly is slidably fitted with the wedge drive assembly.

[0007] Furthermore, the telescopic clamping tooth assembly includes a trapezoidal clamping tooth, the clamping tooth is slidably connected to the first slide groove left and right, a first limiting groove is opened at the top of the rake body, the first limiting groove is communicated with the first slide groove, a first limiting plate is connected to the clamping tooth, the first limiting plate is slidably connected to the first limiting groove left and right, a first compression spring is installed in the first limiting groove, the first compression spring is located on the outer side of the first limiting plate, and the wedge-shaped surface is arranged on the inner side of the clamping tooth.

[0008] Furthermore, the clamping surface of the clamping teeth is sawtooth-shaped.

[0009] Furthermore, a through cavity is provided in the rake teeth, and the clamping teeth are located in the through cavity.

[0010] Furthermore, the wedge block driving assembly includes an isosceles trapezoidal wedge block, the inclined surface of the wedge block is slidably fitted with the wedge-shaped surface of the clamping tooth, the wedge block is slidably connected to the second slide groove up and down, the bottom end of the wedge block extends outside the second slide groove, the second slide groove is connected to the first slide groove, a second limiting groove is opened on the back side of the rake body, the second limiting groove is connected to the second slide groove, a second limiting plate is connected to the wedge block, the second limiting plate is slidably connected to the second limiting groove up and down, a second compression spring is installed in the second limiting groove, and the second compression spring is located above the second limiting plate.

[0011] Furthermore, a pressing rod is horizontally arranged below the rake body, and the pressing rod is connected to the bottom end of the wedge block.

[0012] Furthermore, a cover plate is fixedly connected to the rake body, the cover plate covers the first limiting groove, the second sliding groove, and the second limiting groove, and the operating rod is connected to the cover plate.

[0013] (III) Beneficial effects

[0014] The beneficial effects of the utility model are as follows: the utility model is provided with retractable clamping teeth at both sides of the rake teeth, and a wedge drive assembly is designed to drive the clamping teeth to retract and retract. When the operating rod is rotated to remove the long-thorny tribulus terrestris plants, the wedge drive assembly can be automatically triggered, thereby driving the clamping teeth to clamp the stems of the long-thorny tribulus terrestris plants, thereby improving the removal efficiency. After the removal, the clamping teeth are automatically loosened, which is convenient for cleaning the clamping teeth and the rake teeth and automatically falling off the plants. The utility model is quicker and more convenient to use, and is worthy of large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the local structure of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the assembly position of the clamping teeth and the wedge block;

[0018] Figure 4 It is a partial view of the top view of the utility model;

[0019] Figure 5 for Figure 4 Section view along AA;

[0020] Figure 6 for Figure 4 Section view along BB;

[0021] In the figure, the rake body 1, the rake teeth 2, the clamping teeth 3, the through cavity 4, the first slide groove 5, the first limit groove 6, the first limit plate 7, the first compression spring 8, the second slide groove 9, the second limit groove 10, the second limit plate 11, the second compression spring 12, the wedge block 13, the operating rod 14, the wedge surface 15, the pressing rod 16, and the cover plate 17. DETAILED DESCRIPTION

[0022] like Figures 1 to 6 As shown, a device for controlling long-thorny tribulus terrestris comprises a horizontally arranged rake body 1, on which an operating rod 14 is installed obliquely upward, a plurality of triangular rake teeth 2 are connected to the rake body 1 in a horizontally evenly distributed manner along the length direction, and telescopic clamping tooth assemblies are arranged on both sides of the roots of the rake teeth 2, a first slide groove 5 matching the telescopic clamping tooth assembly is provided in the rake body 1, and the telescopic clamping tooth assembly is slidably connected to the first slide groove 5 left and right, a wedge drive assembly for driving the telescopic clamping tooth assembly to extend and retract is arranged on the rake body 1, a second slide groove 9 matching the wedge drive assembly is vertically opened at the bottom end of the rake body 1, the wedge drive assembly is slidably connected to the second slide groove 9 up and down, and the wedge surface 15 of the telescopic clamping tooth assembly is slidably fitted with the wedge drive assembly.

[0023] like Figure 2 , Figure 3 and Figure 5 As shown, the telescopic clamping tooth assembly includes a trapezoidal clamping tooth 3, the clamping tooth 3 is slidably connected to the first slide groove 5 left and right, a first limiting groove 6 is opened at the top of the rake body 1, the first limiting groove 6 is communicated with the first slide groove 5, a first limiting plate 7 is connected to the clamping tooth 3, the first limiting plate 7 is slidably connected to the first limiting groove 6 left and right, a first compression spring 8 is installed in the first limiting groove 6, the first compression spring 8 is located on the outside of the first limiting plate 7, and the wedge surface 15 is provided on the inner side of the clamping tooth 3; in order to improve the clamping effect, the clamping surface of the clamping tooth 3 is serrated; as shown Figure 4 and Figure 6 As shown, a through cavity 4 is provided in the rake tooth 2 , and the clamping tooth 3 is located in the through cavity 4 .

[0024] like Figure 2 , Figure 3 and Figure 6 As shown, the wedge block driving assembly includes an isosceles trapezoidal wedge block 13, the inclined surface of the wedge block 13 is slidably fitted with the wedge surface 15 of the clamping tooth 3, the wedge block 13 is slidably connected with the second slide groove 9 up and down, the bottom end of the wedge block 13 extends to the outside of the second slide groove 9, the second slide groove 9 is connected with the first slide groove 5, a second limiting groove 10 is opened on the back side of the rake body 1, the second limiting groove 10 is connected with the second slide groove 9, a second limiting plate 11 is connected to the wedge block 13, the second limiting plate 11 is slidably connected with the second limiting groove 10 up and down, a second compression spring 12 is installed in the second limiting groove 10, and the second compression spring 12 is located above the second limiting plate 11.

[0025] like Figure 1 and Figure 6 As shown, in order to improve the consistency of the extension and retraction of the clamping teeth 3 , a pressing rod 16 is horizontally arranged below the rake body 1 , and the pressing rod 16 is connected to the bottom end of the wedge block 13 .

[0026] like Figure 1 As shown, in order to prevent impurities from entering the rake body 1 , a cover plate 17 is fixedly connected to the rake body 1 , the cover plate 17 covers the first limiting groove 6 , the second sliding groove 9 , and the second limiting groove 10 , and the operating rod 14 is connected to the cover plate 17 .

[0027] When removing long-thorned thorn grass, Figures 1 to 6 As shown, the ground is raked with the operating lever 14 so that the stems of the long thorn grass enter between the rake teeth 2, and then the operating lever 14 is rotated outward to pry and pull out the long thorn grass. When prying, the pressing rod 16 contacts the ground and is pressed, and the pressing rod 16 drives the wedge block 13 to move upward, thereby driving the clamping teeth 3 to move outward, so that the serrated clamping surfaces of the clamping teeth 3 firmly clamp the stems of the long thorn grass, which is convenient for applying force to pull out the long thorn grass and improving the pulling efficiency. After the pulling is completed, the pressing rod 16 is naturally relaxed, and the clamping teeth 3 move inward to loosen the stems of the long thorn grass, which is convenient for the automatic falling off of the stems.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for controlling long-thorn grass, characterized in that: The invention comprises a horizontally arranged rake body (1), on which an operating rod (14) is installed obliquely upward, a plurality of triangular rake teeth (2) are evenly distributed horizontally on the rake body (1) along the length direction, telescopic clamping tooth assemblies are arranged at both sides of the root of the rake teeth (2), a first slide groove (5) matching the telescopic clamping tooth assembly is provided in the rake body (1), the telescopic clamping tooth assembly is slidably connected to the first slide groove (5) left and right, a wedge drive assembly for driving the telescopic clamping tooth assembly to extend and retract is arranged on the rake body (1), a second slide groove (9) matching the wedge drive assembly is vertically opened at the bottom end of the rake body (1), the wedge drive assembly is slidably connected to the second slide groove (9) up and down, and the wedge surface (15) of the telescopic clamping tooth assembly is slidably fitted with the wedge drive assembly.

2. The device for controlling long-thorn grass according to claim 1, characterized in that: The telescopic clamping tooth assembly comprises a trapezoidal clamping tooth (3), the clamping tooth (3) being slidably connected to the first slide groove (5) in the left and right directions, a first limiting groove (6) being provided at the top end of the rake body (1), the first limiting groove (6) being communicated with the first slide groove (5), a first limiting plate (7) being connected to the clamping tooth (3), the first limiting plate (7) being slidably connected to the first limiting groove (6) in the left and right directions, a first compression spring (8) being installed in the first limiting groove (6), the first compression spring (8) being located on the outer side of the first limiting plate (7), and the wedge-shaped surface (15) being provided on the inner side of the clamping tooth (3).

3. The device for controlling long-thorn grass according to claim 2, characterized in that: The clamping surface of the clamping teeth (3) is sawtooth-shaped.

4. The device for controlling long-thorn grass according to claim 2, characterized in that: A through cavity (4) is provided in the rake tooth (2), and the clamping tooth (3) is located in the through cavity (4).

5. The device for controlling long-thorn grass according to claim 2, characterized in that: The wedge block driving assembly comprises an isosceles trapezoidal wedge block (13), the inclined surface of the wedge block (13) is slidably fitted with the wedge surface (15) of the clamping tooth (3), the wedge block (13) is slidably connected to the second slide groove (9) up and down, the bottom end of the wedge block (13) extends outside the second slide groove (9), the second slide groove (9) is connected to the first slide groove (5), a second limiting groove (10) is opened on the back side of the rake body (1), the second limiting groove (10) is connected to the second slide groove (9), a second limiting plate (11) is connected to the wedge block (13), the second limiting plate (11) is slidably connected to the second limiting groove (10) up and down, a second compression spring (12) is installed in the second limiting groove (10), and the second compression spring (12) is located above the second limiting plate (11).

6. The device for controlling long-thorn grass according to claim 5, characterized in that: A pressing rod (16) is horizontally arranged below the rake body (1), and the pressing rod (16) is connected to the bottom end of the wedge block (13).

7. The device for controlling long-thorn grass according to claim 5, characterized in that: A cover plate (17) is fixedly connected to the rake body (1), the cover plate (17) covers the first limiting groove (6), the second sliding groove (9), and the second limiting groove (10), and the operating rod (14) is connected to the cover plate (17).

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