Height adjustable seeder

Abstract

The utility model discloses a height adjustable formula seeder, including seeding box, the seeding box below is installed and opens the ditcher, the both sides of seeding box are installed with two X type racks of symmetrical setting, the middle X type frame is rotatably connected with the main shaft, and the main shaft is set along the transverse and penetrates seeding box bottom, and the main body of main shaft rotatably installs the seed metering device, and the seed metering device is located seeding box inner chamber bottom, and the side of seed metering device is fixedly connected with driven sprocket, X type frame bottom is installed with the adjusting arm that can make it fold, and the adjusting arm is composed of the hollow arm of middle and the hinged arm of both ends thereof. The height adjustable formula seeder provided by the utility model can effectively solve the inconvenient depth adjustment of seeding and the seed waste problem when turning at the head of land.

Description

Technical Field

[0001] This utility model relates to a seeder, specifically a height-adjustable seeder, belonging to the field of seeding machinery technology. Background Technology

[0002] Traditional hand-held seeders are seeding machines where the operator walks behind to support and control the direction. They fall between purely human-powered seeders and large tractor-trailer-drawn seeders, and are suitable for small plots of land, terraced fields, and vegetable gardens.

[0003] Traditional walk-behind seeders still have the following technical problems, based on practical experience: 1. To improve adaptability to different crops and agronomic practices, the sowing depth needs to be changed by adjusting the depth of the furrow opener. However, this adjustment requires tightening and loosening bolts using tools, which presents a problem of inconvenience in adjusting the sowing depth. 2. The seed metering device moves with the machine to meter seeds. When turning in the field, the seeds will be sown in places that are not needed, resulting in seed waste when turning.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a height-adjustable seeder, which can effectively solve the problems of inconvenient sowing depth adjustment and seed waste when turning at the edge of the field.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: The height-adjustable seeder includes a seed box, a furrow opener installed below the seed box, two symmetrically arranged X-shaped frames on both sides of the seed box, the middle of the X-shaped frames being rotatably connected to the main shaft, the main shaft being set horizontally through the bottom of the seed box, a seed metering device being rotatably mounted on the main shaft body, the seed metering device being located at the bottom of the inner cavity of the seed box, and the side of the seed metering device being fixedly connected to the driven sprocket; an adjustable arm that can be folded is installed at the bottom of the X-shaped frame, the adjustable arm consisting of a hollow arm in the middle and hinged arms at both ends.

[0007] Furthermore, each of the lower ends of the X-shaped frame is equipped with a ground wheel, and a drive sprocket is installed on the side of the ground wheel at the front end of the X-shaped frame along the direction of travel.

[0008] Furthermore, the driving sprocket is connected to the driven sprocket on the side of the seed metering device via a transmission chain.

[0009] Furthermore, the seed metering device is provided with multiple seed metering grooves arranged in a circular pattern around its periphery.

[0010] Furthermore, the outer end of the articulated arm is hinged to the X-shaped frame, and the inner end of the articulated arm passes through the hollow arm and is threadedly connected to it.

[0011] Furthermore, the top of the X-shaped frame is hinged to the bottom of the X-shaped bracket.

[0012] Furthermore, fixed shafts are fixedly installed on the walls of the seeding box on both sides along the direction of travel.

[0013] Furthermore, the fixed shaft is located inside the X-shaped bracket, which is provided with a guide groove for the fixed shaft to slide.

[0014] Furthermore, a handrail is connected to the rear end of the X-shaped frame along the direction of travel.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: The operator can adjust the height of the seed box and furrow opener by rotating the hollow arm to change the folding angle of the X-shaped frame, thereby achieving flexible adjustment of the seeding depth. This height adjustment does not require tools and can quickly adapt to different crops or soil conditions. By using the front wheel-linked seed metering device, when the seeder turns at the edge of the field, pressing down the handle will lift the front wheel off the ground and stop its rotation, thus cutting off the power source of the seed metering device and achieving immediate stop of sowing when the wheel is lifted, directly avoiding the waste of seeds in non-sowing areas.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the seed metering device installation; Figure 3 yes Figure 2 Top view of the structure; Figure 4 This is a schematic diagram of the articulated arm.

[0018] In the diagram, 1-seeding box, 2-X-type frame, 3-main shaft, 4-ground wheel, 5-seed metering device, 6-driven sprocket, 7-drive sprocket, 8-furrow opener, 9-adjusting arm, 901-hinged arm, 902-hollow arm, 10-handrail, 11-X-type bracket, 12-fixed shaft. Detailed Implementation

[0019] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0020] like Figures 1-4As shown in the figure, this utility model provides a height-adjustable seeder, including a seed box 1, two X-shaped frames 2 symmetrically arranged on both sides of the seed box 1, the middle of the X-shaped frames 2 being rotatably connected to the main shaft 3, and the main shaft 3 being arranged horizontally through the bottom of the seed box 1.

[0021] A seed metering device 5 is rotatably mounted on the main body of the main shaft 3. The seed metering device 5 has multiple seed metering grooves arranged in a circular pattern around its periphery. The seed metering device 5 is located at the bottom of the inner cavity of the seed box 1, and its side is fixedly connected to the driven sprocket 6. The driven sprocket 6 can drive the seed metering device 5 to rotate, filling, carrying and finally placing the seeds in the seed box 1 into the seed grooves one by one.

[0022] A furrow opener 8 is installed below the seed box 1, which guides the seeds carried by the seed metering device 5 to the designated position.

[0023] The lower end of the X-shaped frame 2 is equipped with a ground wheel 4. The side of the ground wheel 4 at the front end of the X-shaped frame 2 along the direction of travel is equipped with a drive sprocket 7. The drive sprocket 7 rotates synchronously with the ground wheel 4. The drive sprocket 7 is connected to the driven sprocket 6 on the side of the seed metering device 5 through a transmission chain.

[0024] The bottom of the X-shaped frame 2 is equipped with an adjusting arm 9 that allows it to fold. The adjusting arm 9 consists of a hollow arm 902 in the middle and hinged arms 901 at both ends.

[0025] The outer end of the hinged arm 901 is hinged to the X-shaped frame 2, and the inner end of the hinged arm 901 passes through the hollow arm 902 and is threadedly connected to it. During the rotation of the hollow arm 902, the two hinged arms 901 move towards or away from each other, thereby driving the X-shaped frame 2 to move.

[0026] The top of the X-shaped frame 2 is hinged to the bottom of the X-shaped support 11, and the X-shaped frame 2 drives the X-shaped support 11 above to move during the folding motion.

[0027] Fixed shafts 12 are fixedly installed on the walls of the seeding box 1 on both sides along the direction of travel. The fixed shafts 12 are located inside the X-shaped bracket 11, and the X-shaped bracket 11 is provided with guide grooves for the sliding of the fixed shafts 12. The stability of the seeding box 1 during the lifting and lowering process is ensured by the movement of the X-shaped bracket 11 along the fixed shafts 12.

[0028] The X-shaped frame 2 is connected to a handrail 10 at its rear end along the direction of travel.

[0029] The specific working principle of this utility model is as follows: The operator pushes the seeder forward by using the handle 10. The ground wheel 4 rotates, driving the drive sprocket 7, which in turn drives the driven sprocket 6 and the seed metering device 5 to rotate in sequence to achieve continuous sowing.

[0030] When the seeding height needs to be adjusted, the operator rotates the hollow arm 902 of the adjusting arm 9, and changes the folding angle of the X-shaped frame 2 via the hinged arm 901, thereby adjusting the height of the seed box 1 and the furrow opener 8. This height adjustment requires no tools and can quickly adapt to different crops or soil conditions.

[0031] When the seeder needs to turn in the field, the operator can press down on the seeder with the handle 10 to lift the front wheel 4 off the ground, thus stopping the seeding when the wheel is lifted.

[0032] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A height-adjustable seeder, characterized in that: Includes a seed box (1), a furrow opener (8) installed below the seed box (1), two symmetrically arranged X-shaped frames (2) installed on both sides of the seed box (1), the middle of the X-shaped frame (2) is rotatably connected to the main shaft (3), the main shaft (3) is set to pass through the bottom of the seed box (1) in the transverse direction, a seed metering device (5) is rotatably installed on the main body of the main shaft (3), the seed metering device (5) is located at the bottom of the inner cavity of the seed box (1), and the side of the seed metering device (5) is fixedly connected to the driven sprocket (6); an adjusting arm (9) that can be folded is installed at the bottom of the X-shaped frame (2), the adjusting arm (9) is composed of a hollow arm (902) in the middle and hinged arms (901) at both ends.

2. The height-adjustable seeder as described in claim 1, characterized in that: The lower end of the X-type frame (2) is equipped with a ground wheel (4), and the side of the ground wheel (4) at the front end of the X-type frame (2) along the direction of travel is equipped with a drive sprocket (7).

3. The height-adjustable seeder as described in claim 2, characterized in that: The driving sprocket (7) is connected to the driven sprocket (6) on the side of the seed metering device (5) via a transmission chain.

4. The height-adjustable seeder as described in claim 1, characterized in that: The seed metering device (5) has multiple seed metering troughs arranged in a circular pattern around its periphery.

5. The height-adjustable seeder as described in claim 1, characterized in that: The outer end of the hinged arm (901) is hinged to the X-shaped frame (2), and the inner end of the hinged arm (901) passes through the hollow arm (902) and is threadedly connected to it.

6. The height-adjustable seeder as described in claim 1, characterized in that: The top of the X-shaped frame (2) is hinged to the bottom of the X-shaped bracket (11).

7. The height-adjustable seeder as described in claim 6, characterized in that: The seeding box (1) has fixed shafts (12) fixedly installed on the box walls on both sides along the direction of travel.

8. The height-adjustable seeder as described in claim 7, characterized in that: The fixed shaft (12) is located inside the X-shaped bracket (11), and the X-shaped bracket (11) is provided with a guide groove for the fixed shaft (12) to slide.

9. The height-adjustable seeder as described in claim 1, characterized in that: The X-shaped frame (2) has a handrail (10) connected to the rear end along the direction of travel.

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