A corn picking device

Abstract

The utility model relates to the technical field of corn planting, specifically relates to a corn picking device, including the adjacent setting handle, the connecting frame of fixed connection in handle top, the connecting rod of integral connection in connecting frame top, the swing rod of swing connection between adjacent connecting rod, the picking assembly of fixed connection in connecting rod top, picking assembly includes the adjacent distribution limit cover, and it is out convex setting and is connected through bottom hinge turnover, and the auxiliary protrusion of fixed setting in the outside surface of limit cover. Through the guide plate of horizontal setting reaches the effect that corn and its stem leaf are separated quickly, and the guide plate is set over, can use according to the self -adaptation adjustment of corn size, through the limit cover of arc setting reaches the effect that corn is surrounded and limited, through the auxiliary protrusion reaches the effect that corn and its stem leaf are separated by auxiliary guide plate, and it is convenient for subsequent picking operation.

Description

Technical Field

[0001] This utility model relates to the technical field of corn planting, and specifically to a corn harvesting device. Background Technology

[0002] In the corn planting industry, corn harvesting typically relies on manual picking by hand or the use of simple tools. Traditional manual harvesting methods have the following problems:

[0003] Low efficiency: Harvesting corn by hand requires peeling off the husks one by one and twisting the ears of corn, which is labor-intensive and can easily lead to hand fatigue or even injury for workers during long periods of work.

[0004] Corn that is easily damaged: It is difficult to control the force precisely by handling it manually, which can easily squeeze or scratch the corn kernels and affect the quality of the product.

[0005] To address the aforementioned issues, some corn harvesting devices have been proposed in the existing technology, but they still have the following shortcomings:

[0006] Bulky structure: Some devices use a solid metal frame, which can easily cause arm pain and reduce work efficiency if operated for a long time.

[0007] Poor adaptability: Fixed-size limiting mechanisms cannot adapt to corn of different diameters, causing small-sized corn to fall off or large-sized corn to get stuck;

[0008] Insufficient durability: The blades are prone to dulling, and the hinge joints are easily worn and loosened due to metal-to-metal friction, affecting cutting accuracy and equipment lifespan;

[0009] Meanwhile, existing harvesting devices cannot effectively and quickly separate the stalks and leaves from the corn in actual use, lack a positioning and protection mechanism for the corn, and are prone to accidentally cutting the stalks and leaves or immature ears of corn. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides a corn harvesting device that can solve the following problems:

[0011] The structure is bulky, has poor adaptability and insufficient durability. At the same time, the existing harvesting devices cannot effectively and quickly separate the stalks and leaves from the corn in actual use, lack a positioning and protection mechanism for the corn, and are prone to accidentally cutting the stalks and leaves or immature ears.

[0012] To solve the above-mentioned technical problems, the present invention proposes the following technical solution:

[0013] A corn harvesting device includes adjacent handles, a connecting frame fixedly connected to the top of the handles, a connecting rod integrally connected to the top of the connecting frame, a rotating rod movably connected between adjacent connecting rods, and a harvesting component fixedly connected to the top of the connecting rod.

[0014] Furthermore, the harvesting assembly includes adjacently distributed limiting covers, which are arc-shaped and protrude outwards and are connected by a bottom hinge; an auxiliary protrusion fixedly disposed on the outer surface of the limiting cover; a harvesting blade disposed on the inner side of the limiting cover; a spring connected between the harvesting blade and the limiting cover; and a guide plate movably connected to the top of the limiting cover.

[0015] Furthermore, a flexible pad is provided on the inner side of the limiting cover, and a replaceable rubber edge is provided on the edge; the auxiliary protrusion is a hemispherical rubber protrusion, which is embedded in the outer surface of the limiting cover.

[0016] Furthermore, the guide plate is rectangular and is connected to the limiting cover by a shaft and a torsion spring sleeve; the top of the guide plate has a spherical protrusion.

[0017] Furthermore, the harvesting blade is crescent-shaped and made of high-carbon stainless steel; the edge of the harvesting blade has a combination of serrated and smooth sections, and the springs are a pair of compression springs connected at both ends between the harvesting blade and the limiting cover.

[0018] Furthermore, the connecting frame is a hollow aluminum alloy frame, and a weight-reducing grid is provided in the transition section between it and the handle; the connecting rod is an aluminum alloy hollow tube with transverse reinforcing ribs on the inner wall; the two ends of the connecting rod are thickened and narrowed in the middle.

[0019] Furthermore, the rotating rod is connected using self-lubricating bearings or nylon bushings, and anti-detachment buckles are provided at both ends of the rotating rod.

[0020] As can be seen from the above technical solution, the beneficial effects of this utility model are:

[0021] 1. This utility model achieves the effect of quickly separating corn and its stalks and leaves through a horizontally arranged guide plate. At the same time, the guide plate is flipped to adapt to the size of the corn. The arc-shaped limiting cover achieves the effect of surrounding and limiting the corn. The auxiliary protrusions help the guide plate to separate the corn and its stalks and leaves, which facilitates the subsequent harvesting operation.

[0022] 2. This utility model achieves the effect of cutting and harvesting corn inside the limiting cover by using a harvesting blade. The serrated part on its surface is used to quickly cut the corn stalk, while the smooth part avoids damaging the corn kernels.

[0023] 3. In this utility model, the connecting frame adopts a hollow aluminum alloy frame with a weight-reducing grid in the transition section, which significantly reduces the amount of material used while maintaining structural rigidity. The connecting rod is made of hollow aluminum alloy tube, combined with a hollow + transverse reinforcing rib design. While ensuring bending and torsional strength, it is lighter than a solid metal rod, making it easier to operate for a long time. The design of thickening at both ends and narrowing in the middle of the connecting rod strengthens the stress concentration area and prevents deformation or breakage due to repeated stress. The transverse reinforcing ribs on the inner wall improve the local compressive strength of the hollow tube, prevent the tube wall from collapsing when picking, and suppress vibration transmission, making the cutting more stable. The overall lightweight design reduces user arm fatigue, and is especially suitable for long-term, high-frequency corn picking operations. It can ensure no elastic deformation when force is applied, so that the picking blade can accurately cut the corn root and avoid incomplete picking or corn damage caused by tool shaking. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a front view of the overall structure of this utility model;

[0026] Figure 2 This is a front view of the overall device in use according to this utility model;

[0027] Figure 3 This is a front view of the picking component connection in this utility model.

[0028] Figure label:

[0029] 1. Handle; 2. Connecting frame; 3. Rotating rod; 4. Connecting rod; 5. Picking assembly; 6. Limiting cover; 7. Picking blade; 8. Spring; 9. Auxiliary protrusion; 10. Guide plate. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] See Figure 1-3As shown, a corn harvesting device includes adjacent handles 1, a connecting frame 2 fixedly connected to the top of the handles 1, a connecting rod 4 integrally connected to the top of the connecting frame 2, a rotating rod 3 movably connected between adjacent connecting rods 4, a harvesting component 5 fixedly connected to the top of the connecting rod 4, the harvesting component 5 including adjacent limiting covers 6, an auxiliary protrusion 9 fixedly connected to the outer surface of the limiting cover 6, a harvesting blade 7 provided on the inner side of the limiting cover 6, a spring 8 fixedly connected between the harvesting blade 7 and the limiting cover 6, and a guide plate 10 movably connected to the top of the limiting cover 6.

[0032] In this embodiment of the utility model, the limiting cover 6 is arranged in an arc shape with an outward protrusion. Two adjacent sets of limiting covers 6 are connected by a bottom hinge. A flexible pad is provided on the inner side of the limiting cover 6, and a replaceable rubber edge is provided on its edge. The auxiliary protrusion 9 is a hemispherical protrusion located above the outer surface of the limiting cover 6. The auxiliary protrusion 9 is a rubber protrusion and is embedded in the outer surface of the limiting cover 6. The outer surface of the limiting cover 6 has a corresponding embedding opening. The guide plate 10 is a rectangular plate and is connected to the top of the limiting cover 6 by a shaft and a torsion spring sleeve. The top of the guide plate 10 is a spherical protrusion. The horizontally arranged guide plate 10 achieves the effect of quickly separating the corn and its stalks and leaves. At the same time, the guide plate 10 is flipped to adapt to the size of the corn. The arc-shaped limiting cover 6 achieves the effect of surrounding and limiting the corn. The auxiliary protrusion 9 assists the guide plate 10 in separating the corn and its stalks and leaves, which facilitates subsequent harvesting operations.

[0033] When using this device, the user guides the unharvested corn into the limiting cover 6 through the opening between the two sets of guide plates 10. During this process, the guide plates 10 move along the surface of the corn, separating the outer stalks and leaves from the corn body. Since the corn is elliptical when the leaves are not removed, the flipped guide plates 10 can adaptively flip and adjust according to the actual size of the corn to ensure the separation between the corn and the outer stalks. The above operation continues until the guide plates 10 are moved to the position where the corn and the stalks meet. During this process, the hemispherical auxiliary protrusions 9 are positioned between the corn and the stalks to maintain the separation between the corn and the stalks, facilitating subsequent harvesting operations.

[0034] The harvesting blade 7 is crescent-shaped and is fixedly connected to the limiting cover 6 with an elastic layer. Springs 8 are in pairs and fixedly connected to both ends between the harvesting blade 7 and the limiting cover 6. The springs 8 are compression springs. The harvesting blade 7 is made of high carbon stainless steel and the blade edge is designed with a combination of serrated and smooth sections. The harvesting blade 7 achieves the effect of cutting and harvesting the corn inside the limiting cover 6. The serrated part on its surface is used to quickly cut the corn stalks, and the smooth section avoids damaging the corn kernels.

[0035] After the guide plate 10 is moved to the position where the corn and the stalk meet, since the corn and the outer stalk and leaves are separated, the user controls the two sets of limit covers 6 to move closer by gripping the handle 2, which drives the picking blades 7 on the inside to cut the corn and the root. This process can effectively avoid cutting the stalk and leaves outside the corn at the same time, thereby achieving a fast and efficient picking operation.

[0036] The connecting frame 2 is a hollow aluminum alloy frame, with a weight-reducing grid in the transition section between it and the handle 1. The connecting rod 4 is a hollow aluminum alloy tube with transverse reinforcing ribs on its inner wall. The ends of the connecting rod are thickened, while the middle section narrows. The connecting frame 2 uses a hollow aluminum alloy frame with weight-reducing grids in the transition section, significantly reducing material usage while maintaining structural rigidity. The connecting rod 4 uses a hollow aluminum alloy tube, combined with a hollow design and transverse reinforcing ribs, which is lighter than a solid metal rod while ensuring bending and torsional strength, making it easier to operate for extended periods. Furthermore, the design of the connecting rod 4, which is thickened at both ends and narrowed in the middle, strengthens the connection point in the stress concentration area, preventing deformation or breakage due to repeated stress. The transverse reinforcing ribs on the inner wall enhance the local compressive strength of the hollow tube, preventing the tube wall from collapsing when harvesting and suppressing vibration transmission, making the cutting more stable. The overall lightweight design reduces user arm fatigue, making it especially suitable for long-term, high-frequency corn harvesting operations. It can ensure no elastic deformation when applying force, allowing the harvesting blade 7 to accurately cut the corn root, avoiding incomplete harvesting or corn damage caused by tool shaking.

[0037] In this device, the rotating rod 3 uses a self-lubricating bearing or nylon bushing to reduce friction at the hinge and avoid loosening caused by metal wear. Anti-disengagement buckles are added to both ends to prevent the connecting rod 4 from accidentally disengaging after long-term use.

[0038] Aluminum alloy parts are anodized, while steel parts such as blades and shafts are galvanized or Dacromet-plated to adapt to humid farmland environments.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A corn harvesting device, characterized in that: It includes a handle (1) arranged adjacent to each other, a connecting frame (2) fixedly connected to the top of the handle (1), a connecting rod (4) integrally connected to the top of the connecting frame (2), a rotating rod (3) movably connected between adjacent connecting rods (4), and a picking component (5) fixedly connected to the top of the connecting rod (4).

2. The corn harvesting device according to claim 1, characterized in that, The harvesting assembly (5) includes adjacently distributed limiting covers (6), which are arc-shaped and convex outwards and connected by a bottom hinge; an auxiliary protrusion (9) fixedly disposed on the outer surface of the limiting cover (6); a harvesting blade (7) disposed on the inner side of the limiting cover (6); a spring (8) connected between the harvesting blade (7) and the limiting cover (6); and a guide plate (10) movably connected to the top of the limiting cover (6).

3. A corn harvesting device according to claim 2, characterized in that: The inner side of the limiting cover (6) is provided with a flexible pad and the edge is provided with a replaceable rubber guard; the auxiliary protrusion (9) is a hemispherical rubber protrusion, which is embedded in the outer surface of the limiting cover (6).

4. A corn harvesting device according to claim 2, characterized in that: The guide plate (10) is rectangular and is connected to the limiting cover (6) by a shaft and a torsion spring sleeve; the top of the guide plate (10) is spherical protrusion.

5. A corn harvesting device according to claim 2, characterized in that: The picking blade (7) is crescent-shaped and made of high-carbon stainless steel. The edge of the picking blade (7) is provided with a combination of serrated and smooth sections. The spring (8) is a pair of compression springs connected at both ends between the picking blade (7) and the limiting cover (6).

6. A corn harvesting device according to claim 1, characterized in that: The connecting frame (2) is a hollow aluminum alloy frame, and a weight-reducing grid is provided in the transition section between it and the handle (1); the connecting rod (4) is an aluminum alloy hollow tube with transverse reinforcing ribs on the inner wall; the two ends of the connecting rod (4) are thickened and narrowed in the middle.

7. A corn harvesting device according to claim 1, characterized in that: The rotating rod (3) is connected by a self-lubricating bearing or a nylon bushing, and anti-detachment buckles are provided at both ends of the rotating rod (3).

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