CN212812815U

CN212812815U - Sunflower harvesting tool

Info

Publication number: CN212812815U
Application number: CN202021921054.9U
Authority: CN
Inventors: 姚彤; 贺亮生
Original assignee: Vocational and Technical College of IMAU
Current assignee: Vocational and Technical College of IMAU
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-03-30
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a sunflower harvesting tool, belonging to the field of agricultural tools; the cutting tool comprises a fixed cutter and a movable cutter, wherein the fixed cutter comprises a fixed rod and a fixed cutter head, a first cutting edge of the fixed cutter head is an arc-shaped cutting edge protruding upwards, and the fixed rod is fixed at one end of the first cutting edge; the movable knife comprises a movable rod and a movable knife head, a second cutting edge of the movable knife head is of a downward concave shape, and the movable rod is fixed at one end of the movable knife head; the movable rod is provided with a sleeve joint part, the movable rod is sleeved on the fixed rod in parallel through the sleeve joint part, the movable cutter head is positioned above the fixed cutter head, and the second cutter edge is opposite to the first cutter edge; the movable rod can only move up and down along the fixed rod and cannot rotate relatively; this instrument is from the relative centre gripping cutting sunflower stalk in both sides, and it is faster than current hook reaps the unilateral cutting, and safer.

Description

Sunflower harvesting tool

Technical Field

The utility model relates to an agricultural apparatus field, in particular to sunflower reaps instrument.

Background

The large-area planting of the sunflowers adopts a harvester with higher automation degree to harvest, and for the small-area planting situation, such as the harvesting of the small-area planting adopting machine in the sunflower experimental field and the family is limited by the planting field, the harvesting operation of the machine is difficult, and the harvesting cost is high; in addition, for the new variety of the cultivated sunflowers, especially the expensive variety, the sunflower seeds can be damaged by adopting the extensive harvesting of a harvester, so the traditional manual harvesting is also adopted, and the sickle is usually adopted to cut the flower disc; the height of the sunflower is 1-3.5 m, and the diameter is 10-30 cm; the flower disc can droop after the sunflower is ripe, the right hand hooks the stem near the flower disc by the sickle and pulls down to the height which can be reached by the left hand, the left hand grasps the flower disc, and the right hand cuts off the stem by the sickle; the stems are thick, cutting from one side is laborious, and the sickle blade faces towards people, so that the risk of hurting people exists; therefore, the inventor further improves and designs a harvesting tool on the basis of the existing sickle.

Disclosure of Invention

An object of the utility model is to provide a sunflower harvesting tool, solve current hook and reap the hard problem of existence unilateral cutting.

The utility model adopts the technical scheme as follows: a sunflower harvesting tool comprises a fixed knife and a movable knife, wherein the fixed knife comprises a fixed rod and a fixed knife head, a first cutting edge of the fixed knife head is an arc-shaped cutting edge protruding upwards, and the fixed rod is fixed at one end of the first cutting edge; the movable knife comprises a movable rod and a movable knife head, a second cutting edge of the movable knife head is of a downward concave shape, and the movable rod is fixed at one end of the movable knife head; the movable rod is provided with a sleeve joint part, the movable rod is sleeved on the fixed rod in parallel through the sleeve joint part, the movable cutter head is positioned above the fixed cutter head, and the second cutter edge is opposite to the first cutter edge; the movable rod can only move up and down along the fixed rod and cannot rotate relatively.

Preferably, the fixed cutter head is oval, the first cutting edge is an oval upper edge, and the upper end of the fixed rod is fixed on the right side of the fixed cutter head.

Preferably, the movable cutter head is crescent-shaped, the second blade is crescent-shaped lower edge, and the upper end of the movable rod is fixed on the right side of the movable cutter head.

Preferably, the second blade and the first blade are close to each other and coincide, and the blades collide with each other.

Preferably, the second blade overlaps the first blade in a portion adjacent to each other.

Preferably, the cross-section of the fixing rod is non-circular.

Preferably, the cross-section of the fixed rod is square, the center of the sleeve-joint part of the movable rod is a square hole matched with the movable rod, and the fixed rod penetrates through the square hole of the sleeve-joint part.

Furthermore, an operating rod perpendicular to the movable rod is arranged on the movable rod, and a closed annular handle is arranged at the holding end of the operating rod.

Furthermore, the lower end of the fixed rod is longer than the movable rod, and a second handle with a circular or oval section is installed at the lower end of the fixed rod; and the surface of the second handle is provided with anti-skid textures.

Furthermore, the lower end of the movable rod is provided with a reset device, the reset device comprises a tail end rod, the bottom end of the movable rod extends downwards, the tail end rod penetrates through a through hole in the limiting part on the fixed rod and is provided with a limiting block, the limiting block is larger than the through hole in the limiting part and is positioned below the limiting part, the tail end rod is sleeved with a spring, the lower end of the spring is in contact with or connected with the limiting part, and the upper end of the spring is in contact with or connected with the lower end of the movable; under the natural state of the spring, the second blade is far away from the first blade, and a cutting opening between the second blade and the first blade is opened.

The beneficial effects of the utility model reside in that: this instrument is from the relative centre gripping cutting sunflower stalk in both sides, and it is faster than current hook reaps the unilateral cutting, and safer.

Drawings

Fig. 1 is a schematic view of the overall structure of the present tool in the embodiment.

Fig. 2 is a schematic structural diagram illustrating the first blade and the second blade colliding with each other in the embodiment.

Fig. 3 is a schematic structural diagram illustrating a first blade partially overlapping a second blade in the embodiment.

Fig. 4 is a sectional view of the socket part in the embodiment.

Fig. 5 is a schematic view of the overall structure of the additionally-arranged resetting device.

Fig. 6 is a detail structure showing diagram of the resetting device.

In the figure: the cutting tool comprises a fixed knife 1, a fixed rod 2, a fixed knife head 3, a first knife edge 4, a movable knife 5, a movable rod 6, a movable knife head 7, a second knife edge 8, a sleeving part 9, an operating rod 10, an annular handle 11, a second handle 12, a tail end rod 13, a limiting part 14, a limiting block 15 and a spring 16.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Examples

As shown in fig. 1, a sunflower harvesting tool comprises two parts, namely a fixed knife 1 and a movable knife 5, wherein the fixed knife 1 comprises a fixed rod 2 and a fixed knife head 3, a first blade 4 of the fixed knife head 3 is an arc-shaped blade protruding upwards, and the fixed rod 2 is fixed at one end of the first blade 4; in the embodiment, the fixed cutter head 3 is in an oval shape, the first cutter edge 4 is an oval upper edge, and the upper end of the fixed rod 2 is fixed on the right side of the fixed cutter head 3;

the movable knife 5 comprises a movable rod 6 and a movable knife head 7, a second blade 8 of the movable knife head 7 is of a downward concave shape, the second blade 8 is opposite to the first blade 4, the second blade and the first blade are close to each other and can be superposed, and the blades collide with each other, namely the fixed knife head 3 and the movable knife head 7 are originally an integral body and are divided into two blades by an upward convex arc (as shown in figure 2); another situation of the second blade 8 and the first blade 4 is: may partially overlap when adjacent to each other (as shown in fig. 3); the movable rod 6 is fixed at one end of the movable tool bit 7; in the embodiment, the movable cutter head 7 is crescent-shaped, the second blade 8 is the lower edge of the crescent shape, and the upper end of the movable rod 6 is fixed on the right side of the movable cutter head 7; the movable rod 6 is provided with a sleeve joint part 9, the movable rod 6 is sleeved on the fixed rod 2 in parallel through the sleeve joint part 9, the movable cutter head 7 is positioned above the fixed cutter head 3, and the second cutter edge 8 is opposite to the first cutter edge 4; the movable rod 6 can move up and down along the fixed rod 2 and move downwards, the second blade 8 approaches to the first blade 4, and the sunflower stems are cut off; the movable rod 6 can only move up and down along the fixed rod 2 and cannot rotate relatively, otherwise the second blade 8 and the first blade 4 are crossed and are not beneficial to cutting off the sunflower stems; the cross section of the fixing rod 2 is non-circular and can be square or triangular; as shown in fig. 4, in this embodiment, the cross section of the fixing rod 2 is square, the center of the sleeve portion 9 of the movable rod 6 is a square hole matching with the sleeve portion, and the fixing rod 2 passes through the square hole of the sleeve portion 9.

The conventional use method of the tool comprises the following steps: the left hand grips the lower extreme of dead lever 2, and the right hand holds the lower extreme of holding movable rod 6, moves up movable rod 6, and first sword 4 is kept away from to second sword 8, and the cutting opening is opened between second sword 8 and the first sword 4, colludes the cutting opening with the sunflower stalk in, and the right hand pulls down movable rod 6, and second sword 8 is close to first sword 4, cuts off the sunflower stalk.

Further, as shown in fig. 1, the fixed rod 2 is too close to the movable rod 6, and the movable rod 6 is inconvenient to hold and move, so that the operating rod 10 perpendicular to the movable rod 6 is arranged on the movable rod 6, and a closed annular handle 11 can be further added to the holding end of the operating rod 10 to prevent the hands from being taken off.

Further, as shown in fig. 1, the lower end of the fixed rod 2 is held by the left hand, and in order to prevent the movable rod 6 from moving downward and striking the left hand, the lower end of the fixed rod 2 is longer than the movable rod 6, and the lower end of the fixed rod 2 is preferably provided with a second handle 12 with a circular or oval cross section; and the surface of the second handle 12 is provided with anti-slip textures.

Further, as shown in fig. 5 and 6, the lower end of the movable rod 6 is provided with a resetting device, the resetting device comprises a tail end rod 13 extending downwards from the bottom end of the movable rod 6, the tail end rod 13 penetrates through a through hole on a limiting part 14 on the fixed rod 2 and is provided with a limiting block 15, the limiting block 15 is larger than the through hole on the limiting part 14 and is positioned below the limiting part 14, a spring 16 is sleeved outside the tail end rod 13, the lower end of the spring 16 is contacted with or connected with the limiting part 14, and the upper end of the spring 16 is contacted with or connected with the lower end of the movable rod; as shown in fig. 5, in a natural state of the spring 16, the second blade 8 is far away from the first blade 4, a cutting opening between the second blade 8 and the first blade 4 is opened, the spring 16 is compressed and the right hand is released in the process of pulling down the movable rod 6 to cut the sunflower stem each time, the spring 16 is reset, and the movable rod 6 moves upwards; thus, the operation is more labor-saving.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that modifications may be made to the above-described embodiments, or equivalent changes and modifications may be made to some of the technical features of the embodiments.

Claims

1. A sunflower harvesting tool is characterized by comprising a fixed knife and a movable knife, wherein the fixed knife comprises a fixed rod and a fixed knife head, a first cutting edge of the fixed knife head is an arc-shaped cutting edge protruding upwards, and the fixed rod is fixed at one end of the first cutting edge; the movable knife comprises a movable rod and a movable knife head, a second cutting edge of the movable knife head is of a downward concave shape, and the movable rod is fixed at one end of the movable knife head; the movable rod is provided with a sleeve joint part, the movable rod is sleeved on the fixed rod in parallel through the sleeve joint part, the movable cutter head is positioned above the fixed cutter head, and the second cutter edge is opposite to the first cutter edge; the movable rod can only move up and down along the fixed rod and cannot rotate relatively.

2. The sunflower harvesting tool of claim 1, wherein: the fixed cutter head is oval, the first cutting edge is oval upper edge, and the upper end of dead lever is fixed on the right side of fixed cutter head.

3. The sunflower harvesting implement of claim 2, wherein: the movable cutter head is crescent, the second cutting edge is crescent lower edge, and the upper end of the movable rod is fixed on the right side of the movable cutter head.

4. The sunflower harvesting tool of claim 3, wherein: the second blade and the first blade are close to each other and coincide, and the blades touch each other.

5. The sunflower harvesting tool of claim 3, wherein: the second blade and the first blade are partially overlapped close to each other.

6. The sunflower harvesting implement of any one of claims 1-5, wherein: the cross section of the fixing rod is non-circular.

7. The sunflower harvesting tool of claim 6, wherein: the cross-section of the fixed rod is square, the center of the sleeve joint part of the movable rod is a square hole matched with the movable rod, and the fixed rod penetrates through the square hole of the sleeve joint part.

8. The sunflower harvesting implement of any one of claims 1-5, wherein: an operating rod perpendicular to the movable rod is arranged on the movable rod, and a closed annular handle is arranged at the holding end of the operating rod.

9. The sunflower harvesting implement of any one of claims 1-5, wherein: the lower end of the fixed rod is longer than the movable rod, and a second handle with a circular or oval section is installed at the lower end of the fixed rod; and the surface of the second handle is provided with anti-skid textures.

10. The sunflower harvesting implement of any one of claims 1-5, wherein: the lower end of the movable rod is provided with a reset device, the reset device comprises a tail end rod, the bottom end of the movable rod extends downwards, the tail end rod penetrates through a through hole in the limiting part on the fixed rod and is provided with a limiting block, the limiting block is larger than the through hole in the limiting part and is positioned below the limiting part, the tail end rod is sleeved with a spring, the lower end of the spring is in contact with or connected with the limiting part, and the upper end of the spring is in contact with or connected with the lower end of the; under the natural state of the spring, the second blade is far away from the first blade, and a cutting opening between the second blade and the first blade is opened.