A type of hand-push crop seeder

Abstract

This utility model belongs to the field of seeders and proposes a hand-push seeder for crops, including a seed box, a hand-held mechanism, wheels, a seed box, a duckbill nozzle, and a seed dispensing mechanism. The seed dispensing mechanism includes a seed storage bin connected to the seed box. Near the bottom of the seed storage bin, a seed support block is integrally formed with it. The seed support block has 2-5 axially spaced swing grooves. A seed dispensing arm with a seed dispensing groove is hinged to each swing groove. The inner wall of the seed box has multiple levers corresponding to the duckbill nozzle, which are used to actuate the top of the seed dispensing arm. This utility model, by employing a seed dispensing mechanism that coordinates the seed dispensing arm with the seed storage bin, can produce intermittent actuation as the seed box rotates, dispensing a controllable number of seeds, thus meeting the requirements of hand-push seeding. Furthermore, this equipment has a reasonable design, a simple internal structure, which helps reduce the failure rate and improves actual utilization, making it suitable for large-scale promotion.

Description

Technical Field

[0001] This utility model belongs to the field of seeders, and in particular relates to a hand-push seeder for crops. Background Technology

[0002] A push seeder is a common agricultural planting tool that uses manual pushing to complete the planting operation. It is characterized by its simple operation, flexibility, and convenience, and is suitable for planting in small plots of farmland or areas with complex terrain. The main components of a push seeder include a seed box, a seed metering device, wheels, and a hand-held mechanism.

[0003] The utility model patent with publication number CN206713359U discloses a sowing mechanism for a hand-push roller seeder. The seeder includes a storage bin and a traveling wheel with a duckbill. The sowing mechanism includes a seed wheel 1 that is rotatably connected to the storage bin and can receive the seed material in the storage bin. The seed wheel 1 is driven to the traveling wheel and can put the seed material into the duckbill by rotating. The sowing mechanism also includes a seed wheel 2 that can receive the seed material in the storage bin and can put the seed material into the duckbill by rotating. The seed wheel 1 (4) and the seed wheel 2 are connected by a clutch assembly. The sowing mechanism also includes a drive assembly that can drive the clutch assembly to separate or engage. This solves the problem of low working efficiency of existing sowing mechanisms and improves sowing efficiency. However, the internal mechanism of this equipment is complex, which increases the probability of failure and the cost is also high, affecting its actual utilization rate. Utility Model Content

[0004] This utility model addresses the technical problems of the aforementioned hand-push seeders by proposing a reasonably designed, simple internal structure that helps reduce the failure rate and improves the actual utilization rate of a crop hand-push seeder.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a hand-push seeder for crops, including a seed box, a hand-holding mechanism on the seed box, wheels at the bottom of the hand-holding mechanism, a seed box on one side of the seed box, and multiple evenly distributed duckbill nozzles on the rolling circumference of the seed box. The inside of the seed box is equipped with a seed dispensing mechanism for dispensing seeds into the duckbill nozzles. The seed dispensing mechanism includes a seed storage compartment connected to the seed box, the longitudinal section of which is crescent-shaped. The bottom faces the duckbill device located directly below the seeding box. The seed storage bin has an integrated seed support block near its bottom. The seed support block has a V-shaped structure and 2 to 5 axially spaced swing grooves. A seed dispensing arm is hinged in the swing groove. The bottom of the seed dispensing arm has a seed dispensing groove that communicates with the seed storage bin. The top of the seed dispensing arm extends towards the duckbill device near the top of the seeding box. The inner wall of the seeding box has multiple levers that correspond one-to-one with the duckbill device. The levers are used to move the top of the seed dispensing arm.

[0006] Preferably, the seed metering trough includes a buffer portion that connects and cooperates with the inner bottom surface of the seed support block, the end of the buffer portion is provided with a guide portion that is distributed in a herringbone shape with it, the end of the guide portion is provided with a seed outlet portion that communicates with the bottom surface of the seed metering arm, and the root of the swing trough is provided with a paddle that elastically contacts and cooperates with the bottom surface of the seed metering arm.

[0007] Preferably, the seeding box includes two symmetrically distributed shaft end plates, each shaft end plate having a circular structure. A connecting shaft is provided at the center of each shaft end plate. The outer sides of the two shaft end plates are clamped and engaged with the two sides of the hand-holding mechanism. A ring box body is provided on the circumferential surface of each shaft end plate, which rotates and engages with it. The duckbill device is provided on the ring box body.

[0008] Preferably, the duckbill device includes a mounting plate with an installation port communicating with the interior of the ring box. A duckbill groove is provided in the installation port, and an opening and closing plate is provided at the opening of the duckbill groove. An opening and closing shaft is provided at one end of the opening and closing plate, and the top of the opening and closing shaft cooperates with an opening and closing brake provided on one side of the seeding box.

[0009] Preferably, the opening and closing shaft includes a horizontal section, one end of which is provided with an L-shaped section, the top of which faces the center of the seeding box, and a torsion spring is provided on the horizontal section. The torsion spring includes a spiral section, one end of which is provided with a straight section, and the end of which is provided with a U-shaped section that engages with the L-shaped section.

[0010] Preferably, the opening and closing brake includes a fixed plate, the bottom of which is provided with a triangular plate rotatably connected to it, the bottom of which is provided with two brake wheels, and the inner side of the triangular plate is connected to the inner side of the fixed plate by a V-shaped spring.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] This utility model provides a hand-push seeder for crops. By adopting a seed dispensing mechanism that combines a seed dispensing arm with a seed storage bin, the seed dispensing mechanism can produce intermittent pulsation as the seed box rotates, and can dispense a controllable number of seeds, which can meet the requirements of hand-push seeding. Furthermore, this equipment is reasonably designed, adopts a simple internal structure, which helps to reduce the failure rate and improve the actual utilization rate, making it suitable for large-scale promotion. Attached Figure Description

[0013] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A perspective view of a hand-push crop seeder provided in the embodiment;

[0015] Figure 2 A perspective view of a hand-push crop seeder provided in an embodiment, taken from another direction;

[0016] Figure 3 Rear view of a hand-push crop seeder provided for an embodiment;

[0017] Figure 4 for Figure 3 A cross-sectional view of a hand-push seeder for crops along the GG direction;

[0018] Figure 5 for Figure 2 An enlarged schematic diagram of a hand-push seeder for a type of crop at point A;

[0019] Figure 6 A three-dimensional view of the seed box, the duckbill device, and the seed metering mechanism;

[0020] Figure 7 A cross-sectional view of the seed box, the duckbill device, and the seed metering mechanism;

[0021] Figure 8 A perspective view of the opening and closing brake provided in the embodiment;

[0022] In the above figures:

[0023] 1. Seeding box; 11. Shaft end plate; 12. Connecting shaft; 13. Ring box body;

[0024] 2. Handrail mechanism;

[0025] 3. Wheels;

[0026] 4. Seed box;

[0027] 5. Duckbill; 51. Mounting plate; 52. Mounting port; 53. Duckbill groove; 54. Opening and closing plate; 55. Opening and closing shaft; 551. Horizontal section; 552. L-shaped section; 56. Torsion spring; 561. Spiral section; 562. Straight section; 563. U-shaped section;

[0028] 6. Seed metering mechanism; 61. Seed storage bin; 62. Seed support block; 63. Slot; 64. Seed metering arm; 65. Seed metering trough; 651. Buffer section; 652. Guide section; 653. Seed dispensing section; 66. Paddle plate; 67. Paddle blade;

[0029] 7. Opening and closing brake; 71. Fixing plate; 72. Triangular plate; 73. Brake wheel; 74. V-shaped spring. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] Examples, such as Figures 1-8 The present invention provides a hand-push seeder for crops, comprising a seed box 1, a hand-holding mechanism 2, wheels 3 at the bottom of the hand-holding mechanism 2, a seed box 4 on one side of the seed box 1, and multiple evenly distributed duckbill nozzles 5 on the rolling circumference of the seed box 1. The inside of the seed box 1 is equipped with a seed-discharging mechanism 6 for discharging seeds into the duckbill nozzles 5. The portion of the seed box 1 fixedly connected to the hand-holding mechanism 2 does not rotate, while the outer circumference of the seed box 1 rotates around its center as the duckbill nozzles 5 roll. The duckbill nozzles 5 have an opening and closing function; as the seed box 1 is pushed forward, the duckbill nozzles 5 successively contact the ground and open at the rear, discharging the seeds into the soil to complete the sowing. The hand-holding mechanism 2, wheels 3, and duckbill nozzles 5 are existing technologies and will not be described further in this embodiment.

[0033] To reduce the failure rate of the seed metering mechanism 6, this utility model adopts a relatively simple structural design. Specifically, the seed metering mechanism 6 includes a seed storage chamber 61 connected to the seed box 4. The longitudinal section of the seed storage chamber 61 is crescent-shaped and its bottom faces the duckbill device 5 located directly below the seed box 1. Near the bottom of the seed storage chamber 61, there is a seed support block 62 integrated with it. The seed support block 62 has a V-shaped structure and is provided with 2 to 5 axially spaced swing grooves 63. A seed metering arm 64 is hinged in the swing groove 63, and the bottom end of the seed metering arm 64 is left with a swinging allowance. The bottom of the seed metering arm 64 is provided with a seed metering groove 65 connected to the seed storage chamber 61. The top end of the seed metering arm 64 extends towards the duckbill device 5 near the top of the seed box 1. The inner wall of the seed box 1 is provided with multiple levers 66 corresponding to the duckbill device 5. The levers 66 are used to move the top end of the seed metering arm 64.

[0034] In this device, the seed box 4 is assembled with the internally threaded post on the seeding box 1 via screws. The seed box 4 has a connection port near its bottom to release a certain amount of seeds into the seeding box 1, ensuring a sufficient quantity of seeds in the seed storage chamber 61. The crescent-shaped design of the seed storage chamber 61 bypasses the connecting shaft 12 of the seeding box 1, allowing seeds to slide to a position near the bottom of the seed storage chamber 61. This device employs a seed dispensing mechanism 6 that works in conjunction with the seed storage chamber 61. The seed storage chamber 61 and the seed box 4 remain relatively stationary, while the seed dispensing arm 64 intermittently moves with the rotation of the seeding box 1. The gap created at the bottom of the seed dispensing arm 64 allows for orderly and controllable seed dispensing, meeting the requirements of manual sowing, such as corn sowing, where 2-5 seeds can be dispensed in one seed hole. The seed dispensing mechanism 6 provided by this device has a simple internal structure, which helps reduce the failure rate and improves practical utilization.

[0035] To improve the seed dispensing efficiency of the seed dispensing mechanism 6, the seed dispensing trough 65 provided by this utility model includes a buffer part 651 that connects and cooperates with the inner bottom surface of the seed support block 62. The end of the buffer part 651 is provided with a guide part 652 that is distributed in a herringbone shape with it. The end of the guide part 652 is provided with a seed outlet part 653 that communicates with the bottom surface of the seed dispensing arm 64. The root of the swing trough 63 is provided with a lever 67 that elastically contacts and cooperates with the bottom surface of the seed dispensing arm 64. The width of the lever 67 is greater than the diameter of the seed outlet part 653, which can prevent the seed dispensing arm 64 from getting stuck at the end of the lever 67 when resetting. The buffer section 651 allows seeds within the range of the seed support block 62 to enter its interior in its original position, and the depth of the buffer section 651 is not too large, thus preventing excessive seed retention. The buffer section 651 has a certain arc length on one side of the V-shaped surface of the seed support block 62, allowing the seeds in the buffer section 651 to move towards the guide section 652. The connection node between the guide section 652 and the buffer section 651 can prevent large areas of seeds from being squeezed into the guide section 652. The seed outlet section 653 serves as the end of the guide section 652, allowing the seeds to enter the pre-discharge posture. The bottom of the seed outlet section 653 is blocked by the paddle 67 to prevent the seeds from being discharged randomly. During the rotation of the seed box 1, the paddle 66 near the top section of the seed metering arm 64 successively paddles it. At the moment of paddle movement, the seed outlet section 653 can be separated from the paddle 67 and vibrate to a certain extent, allowing the last seed to quickly leave the seed metering arm 64, thereby controlling the single-time seed metering efficiency of the seed metering mechanism 6.

[0036] To improve the cooperation performance between the seed metering mechanism 6 and the seed box 1, the seed box 1 provided by this utility model includes two symmetrically distributed shaft end plates 11. The shaft end plates 11 have a circular structure, and a connecting shaft 12 is provided at the center of the shaft end plates 11. The outer sides of the two shaft end plates 11 are clamped and cooperated with the two sides of the hand-holding mechanism 2. An annular box body 13 is provided on the circumferential surface of the shaft end plates 11 and rotates with it. The duckbill device 5 is provided on the annular box body 13. The connecting shaft 12 is connected to the shaft cylinder at the center of the shaft end plates 11. With the clamping action of the hand-holding mechanism 2, the axial distance between the two shaft end plates 11 can be controlled. The inner ring of the annular box body 13 is provided with an annular protrusion, which rotates and cooperates with the annular groove provided on the inner wall of the shaft end plates 11. In this way, during the process of moving the device by hand, the ring box 13 can rotate around the axis of the connecting shaft 12. On the one hand, it can match the sowing spacing of the duckbill device 5, and on the other hand, it can provide sowing power to the seed metering mechanism 6 through the dial plate 66 that rotates synchronously with the ring box 13, thereby achieving the sowing requirements of controllable spacing.

[0037] To improve sowing efficiency, the duckbill device 5 provided by this utility model includes a mounting plate 51. The mounting plate 51 is provided with a mounting opening 52 that communicates with the interior of the ring box 13. A duckbill groove 53 is provided in the mounting opening 52. An opening and closing plate 54 is provided at the opening of the duckbill groove 53. An opening and closing shaft 55 is provided at one end of the opening and closing plate 54. The top of the opening and closing shaft 55 cooperates with the opening and closing brake 7 provided on one side of the sowing box 1. The opening and closing shaft 55 can rotate synchronously with the duckbill device 5. In particular, as it passes through the opening and closing brake 7 with the rotation of the ring box 13, the top of the opening and closing shaft 55 rubs against the opening and closing brake 7. When the duckbill groove 53 leaves the soil, the top of the opening and closing shaft 55 and the opening and closing brake 7 will have relative displacement, which will cause the opening and closing shaft 55 to rotate. After opening the duckbill groove 53, the seeds in the duckbill groove 53 are quickly discharged into the seed hole, and then automatically reset, thereby obtaining the corresponding sowing effect.

[0038] Furthermore, the opening and closing shaft 55 provided by this utility model includes a horizontal section 551, one end of which is provided with an L-shaped section 552, the top of which faces the center of the seeding box 1. A torsion spring 56 is provided on the horizontal section 551. The torsion spring 56 includes a spiral section 561 connected to the rotational position of the opening and closing shaft 55. One end of the spiral section 561 is provided with a straight section 562, and the end of the straight section 562 is provided with a U-shaped section 563 that engages with the L-shaped section 552. Among them, the L-shaped opening of the L-shaped segment 552 faces forward and adopts an obtuse angle L-shaped opening design; under the action of the torsion spring 56, after the L-shaped segment 552 contacts the opening and closing brake 7, the friction of the opening and closing plate 54 causes the torsion spring 56 to generate a torsional tendency. At the moment when the L-shaped segment 552 separates from the opening and closing brake 7, the deformation displacement of the torsion spring 56 is the largest. On the one hand, it ensures that the opening and closing plate 54 and the duckbill groove 53 have a sufficient opening angle. On the other hand, it provides the opening and closing plate 54 with the ability to reset, ensuring that the duckbill device 5 has a stable closing effect after leaving the ground, and avoiding random seeding or soil entering the duckbill device 5.

[0039] To improve the real-time coordination performance between the opening / closing brake 7 and the duckbill device 5, the opening / closing brake 7 provided by this utility model includes a fixed plate 71. A triangular plate 72, rotatably connected to the bottom of the fixed plate 71, is provided. Two brake wheels 73 are provided at the bottom of the triangular plate 72. The inner side of the triangular plate 72 is connected to the inner side of the fixed plate via a V-shaped spring 74. The two brake wheels have different linear distances from the opening / closing shaft 55 in the rotation direction. As the opening / closing shaft 55 rotates past the two brake wheels 73, the V-shaped spring 74 first compresses and then quickly returns to its original position. In the direction of rapid return, the rear brake wheel 73 quickly strikes the top of the opening / closing shaft 55, causing the opening / closing plate 54 to open rapidly to complete the sowing process.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A hand-push crop seeder, comprising a seed box, a hand-holding mechanism on the seed box, wheels at the bottom of the hand-holding mechanism, a seed box on one side of the seed box, a plurality of evenly distributed duckbill nozzles on the rolling circumference of the seed box, and a seed dispensing mechanism inside the seed box for dispensing seeds into the duckbill nozzles, characterized in that, The seed metering mechanism includes a seed storage compartment connected to the seed box. The seed storage compartment has a semi-circular longitudinal section with its bottom facing the duckbill device located directly below the seed box. Near its bottom, the seed storage compartment has an integral seed support block. The seed support block has a V-shaped structure and is provided with 2 to 5 axially spaced swing grooves. A seed metering arm is hinged in the swing groove. The bottom of the seed metering arm is provided with a seed metering groove connected to the seed storage compartment. The top of the seed metering arm extends towards the duckbill device near the top of the seed box. The inner wall of the seed box is provided with multiple levers corresponding to the duckbill device. The levers are used to move the top of the seed metering arm.

2. A hand-propelled planter for crops as claimed in claim 1, wherein, The seed metering trough includes a buffer section that connects and cooperates with the inner bottom surface of the seed support block. The end of the buffer section is provided with a guide section that is distributed in a herringbone shape with it. The end of the guide section is provided with a seed outlet section that communicates with the bottom surface of the seed metering arm. The root of the trough is provided with a paddle that elastically contacts and cooperates with the bottom surface of the seed metering arm.

3. A hand-propelled planter for crops as claimed in claim 2, wherein, The seeding box includes two symmetrically distributed shaft end plates, each shaft end plate having a circular structure. A connecting shaft is provided at the center of each shaft end plate. The outer sides of the two shaft end plates are clamped and engaged with the two sides of the hand-holding mechanism. A ring box body is provided on the circumferential surface of each shaft end plate, which rotates and engages with it. The duckbill device is provided on the ring box body.

4. A hand-propelled planter for crops as claimed in claim 3, characterized in that The duckbill device includes a mounting plate with an installation port communicating with the interior of the ring box. A duckbill groove is provided in the installation port, and an opening and closing plate is provided at the opening of the duckbill groove. An opening and closing shaft is provided at one end of the opening and closing plate, and the top of the opening and closing shaft cooperates with an opening and closing brake provided on one side of the seeding box.

5. A hand-propelled planter for crops as claimed in claim 4, wherein, The opening and closing shaft includes a horizontal section, one end of which is provided with an L-shaped section. The top of the L-shaped section faces the center of the seeding box. A torsion spring is provided on the horizontal section. The torsion spring includes a spiral section. One end of the spiral section is provided with a straight section. The end of the straight section is provided with a U-shaped section that engages with the L-shaped section.

6. A hand-propelled planter for crops as claimed in claim 5, characterized in that The opening and closing brake includes a fixed plate, and a triangular plate rotatably connected to the bottom of the fixed plate. Two brake wheels are provided at the bottom of the triangular plate, and the inner side of the triangular plate is connected to the inner side of the fixed plate by a V-shaped spring.

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