Precise seed-metering device with buckling and tightening functions and seeding machine with precise seed-metering device

Abstract

The utility model relates to the field of agricultural equipment, in particular to a precise seed-metering device with a buckling and tightening function. The precise seed-metering device with the buckling and tightening functions comprises a front shell and a rear shell, the rear shell is arranged at the rear end of the front shell and is attached to the front shell, a seeding cavity is formed between the rear shell and the front shell, and the edges of the front shell and the rear shell are connected through a plurality of opening and closing structures distributed at intervals so that the front shell and the rear shell can be closed. One end of the front shell deviating from the rear shell is integrally provided with a seeding box communicated with the seeding cavity, the lower part of one side of the front shell is provided with a seed falling port communicated with the seeding cavity, the rear shell is integrally provided with an air pipe communicated with the seeding cavity, and the parts of the edges of the front shell and the rear shell, which are not provided with the opening and closing structures, are buckled through a buckle structure. The device has the advantages that the structural design is simple and reasonable, a restraining effect after the shells are closed can be achieved through the design of the buckle structure, the front shell and the rear shell of the seed-metering device are prevented from being opened and closed in the operation process, and seeds are prevented from being mixed in a shell closing gap.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery and equipment, in particular to a precision seed metering device with a buckling and tightening function and a seeding machine with the same. Background Art

[0002] my country is a major agricultural country, with a wide variety of seed drills. Seeder mechanisms are largely similar, with most adopting finger-type and air-suction types. Seeding seeds such as soybeans and corn requires precision. A well-designed seed drill can increase seeding speed, reduce missed and reseeded rates, and minimize the coefficient of variation.

[0003] The seeding device is not designed to plant a single seed. Depending on the user's sowing scenario and crop type, the seeding device needs to be frequently opened and closed, the seed tray needs to be replaced, and the seeds need to be cleaned. Currently, traditional seeding devices all use conventional opening and closing springs as the structure between the two shells. Usually, there is one opening and closing spring on each side of the seeding device shell (some may have multiple opening and closing springs). This can easily cause debris to accumulate in the seeding device, resulting in the front and rear shells of the seeding device not closing tightly (this situation is more serious near the seed drop port), causing the seeding device to malfunction.

[0004] Based on this, it is necessary to develop a precision seed metering device with a snap-on and tightening function to overcome the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a precision seed metering device with a buckling and tightening function and a seeder with the same, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A precision seed metering device with a snap-fitting and tightening function comprises a front shell and a rear shell, wherein the rear shell is arranged at the rear end of the front shell and fits together to form a seeding cavity. The edges of the front shell and the rear shell are connected by a plurality of opening and closing structures distributed at intervals so that the two shells are combined. A seeding box connected to the seeding cavity is integrally provided at one end of the front shell facing away from the rear shell, a seeding port connected to the seeding cavity is provided at the lower part of one side of the front shell, and an air pipe connected to the seeding cavity is integrally provided on the rear shell. The portions of the edges of the front shell and the rear shell where no opening and closing structures are provided are snapped together by a snap-fitting structure.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the buckle structure is arranged at a position near the seed drop port at the lower portion of the edge of the front shell and the rear shell.

[0010] Furthermore, an ear plate is provided at the lower portion of the rear shell, and the buckle structure is provided on the ear plate.

[0011] Furthermore, the above-mentioned snap-fit structure includes a main body integrally formed with the above-mentioned ear plate and vertically arranged, and a wedge-shaped hook is provided at one end of the above-mentioned main body away from the above-mentioned ear plate, and the above-mentioned hook is hooked on the front side of the lower edge of the above-mentioned front shell.

[0012] Furthermore, a slag discharge window communicating with the seeding cavity is provided at a position corresponding to the above-mentioned snap structure at the rear lower portion of the above-mentioned rear shell. The above-mentioned slag discharge window is located in the middle area of the lower portion of the above-mentioned rear shell or near the middle area.

[0013] Furthermore, it also includes a second buckle, which is detachably mounted on the front side of the ear plate and buckled on the lower edge of the front shell.

[0014] Furthermore, the second clip is a "Z"-shaped part, one end of the second clip is attached to the front side of the ear plate and is detachably connected to the ear plate, and the other end of the second clip is buckled at the lower edge of the front shell.

[0015] Furthermore, a screw hole is provided on the rear side of the ear plate, and one end of the second clip is threadedly connected to the screw hole on the ear plate through a bolt passing through the second clip.

[0016] Furthermore, the second buckle is an elastic metal piece.

[0017] The beneficial effects of the utility model are: the structural design is simple and reasonable, and the buckle structure can play a restraining role after the shell is closed, preventing the front shell and the rear shell of the seed metering device from opening and closing during operation, and avoiding seeds from being mixed in the gap between the shells.

[0018] A seeder is also provided, comprising a precision seed metering device with a snap-on and tightening function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a rear view of the precision seed metering device with a snap-on and tightening function according to the present invention;

[0020] Figure 2 The utility model is a three-dimensional precision seed metering device with a buckling and tightening function. Figure 1 ;

[0021] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 The utility model is a three-dimensional precision seed metering device with a buckling and tightening function. Figure 2 ;

[0023] Figure 5 for Figure 4 A magnified view of the structure of part B;

[0024] Figure 6 This is a schematic structural diagram of the second buckle in the precision seed metering device with a buckling and tightening function of the present utility model;

[0025] Figure 7 This is a rear view of another embodiment of the precision seed metering device with a snap-on and tightening function of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of the structure of part C in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Front shell; 2. Rear shell; 3. Opening and closing structure; 4. Snap-on structure; 5. Second snap-on; 11. Seeding box; 12. Seeding port; 21. Air pipe; 22. Ear plate; 23. Slag discharge window; 41. Main body; 42. Hook. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] Example: Figure 1 、 2 As shown in Figure 3, the precision seed metering device with a snap-fitting and tightening function of this embodiment includes a front shell 1 and a rear shell 2. The rear shell 2 is arranged at the rear end of the front shell 1 and fits together to form a seeding cavity. The edges of the front shell 1 and the rear shell 2 are connected by a plurality of opening and closing structures 3 distributed at intervals to make the two shells fit together. A seeding box 11 connected to the seeding cavity is integrally provided at one end of the front shell 1 away from the rear shell 2, and a seeding port 12 connected to the seeding cavity is provided at the lower part of one side of the front shell 1. An air pipe 21 connected to the seeding cavity is integrally provided on the rear shell 2. The portions of the edges of the front shell 1 and the rear shell 2 where the opening and closing structures 3 are not provided are snapped together by a snap-fit structure 4.

[0031] The main components of the precision seed metering device with a snap-fitting and tightening function of this embodiment are conventional technologies (i.e., prior art) in existing seed metering devices. The main design feature is the design in which the front shell 1 and rear shell 2 are further snapped together by a snap-fit structure 4 after they are closed. After the two shells are closed, the snap-fit structure 4 is simultaneously set in a position where the opening and closing structure 3 is not provided (mainly near the seed drop port 12), and the two shells are more tightly fastened together, making the two shells close together more tightly. The overall structural design is simple and reasonable. The snap-fit structure design can play a restraining role after the shells are closed, preventing the front and rear shells of the seed metering device from opening and closing during operation, and preventing seeds from being trapped in the gap between the shells.

[0032] It should be noted that the opening and closing structure 3 involved in this embodiment generally adopts a conventional opening and closing elastic wire, which belongs to the existing technology (a structure similar to a latch, which locks the two to close the shell), and is generally arranged on both sides of the front shell 1 and the rear shell 2. Multiple ones can also be designed as needed and distributed at intervals.

[0033] In this embodiment, it is best that the buckle structure 4 is arranged at the lower part of the edge of the front shell 1 and the rear shell 2 near the seed drop opening 12. In this way, the problem of loose shells near the seed drop opening 12 will not occur.

[0034] As a preferred embodiment, Figure 2 As shown, a lug plate 22 is provided at the lower portion of the rear shell 2 , and the buckle structure 4 is provided on the lug plate 22 .

[0035] In the above embodiment, the design of the ear plate 22 facilitates the arrangement of the snap-fit structure 4 , and the ear plate 22 is manufactured by a process of integrally forming the ear plate 2 with the rear housing 2 .

[0036] In this embodiment, the front shell 1 and the rear shell 2 are generally integrally formed by injection molding of plastic. The ear plate 22 and the rear shell 2 are also integrally formed by injection molding.

[0037] As a preferred embodiment, Figure 3 As shown, the above-mentioned snap-fit structure 4 includes a main body 41 integrally formed with the above-mentioned ear plate 22 and vertically arranged. A wedge-shaped hook portion 42 is provided at one end of the above-mentioned main body 41 away from the above-mentioned ear plate 22, and the above-mentioned hook portion 42 is hooked on the front side of the lower edge of the above-mentioned front shell 1.

[0038] In the above embodiment, when the front shell 1 and the rear shell 2 are combined, the hook portion 42 hooks the front side of the front shell 1 and “hooks and pulls” the edge of the front shell 1 backward, thereby tightly combining the front shell 1 and the rear shell 2.

[0039] As a preferred embodiment, Figure 7 、 8 As shown, a slag discharge window 23 communicating with the sowing cavity is provided at the lower rear portion of the rear shell 2 corresponding to the snap structure 4 . The slag discharge window 23 is located in the lower middle area of the rear shell 2 or near the middle area.

[0040] In the above embodiment, since the slag discharge window 23 is located at the bottom of the seed meter, under the influence of gravity, debris (such as weeds, broken seeds, soil, stones, etc.) is easily accumulated in the middle area and vicinity of the bottom of the seed meter, that is, the area where the slag discharge window 23 is located is prone to accumulation of debris. Therefore, without the design of this slag discharge window 23, the debris cannot be discharged. The addition of the slag discharge window 23 can facilitate the discharge of debris. This improves the problem that the traditional seed meter has no debris discharge port, and the debris is easily stored in the seed meter, resulting in the front shell 1 and the rear shell 2 of the seed meter not closing tightly, causing the seed meter to malfunction.

[0041] As a preferred embodiment, Figure 4 、 5 As shown, it also includes a second buckle 5, which is detachably mounted on the front side of the ear plate 22 and buckled on the lower edge of the front shell 1.

[0042] In the above embodiment, the main function of the second clip 5 is to further enhance the tightness of the housing after the snap structure 4 is added. On the other hand, because the snap structure 4 is an integrally injection-molded structure with the back cover 2 (using plastic material), the snap structure 4 may break after repeated or prolonged use. Therefore, the configuration of the second clip 5 can prevent the problem of loose housing after the snap structure 4 breaks, thus adding a "safety" to prevent the problem.

[0043] As a preferred embodiment, Figure 6 As shown, the second clip 5 is a "Z"-shaped part, one end of the second clip 5 is attached to the front side of the ear plate 22 and is detachably connected to the ear plate 22, and the other end of the second clip 5 is fastened to the lower edge of the front shell 1.

[0044] In the above embodiment, the second buckle 5 is designed to be "Z"-shaped, which is adapted to the shapes of the corresponding parts of the front shell 1 and the rear shell 2, making it easy to install and the buckle is tighter.

[0045] In this embodiment, a screw hole is provided on the rear side of the ear plate 22, and one end of the second clip 5 is threadedly connected to the screw hole on the ear plate 22 via a bolt passing through the second clip 5. This facilitates quick assembly and disassembly of the second clip 5 as a whole.

[0046] In this embodiment, the second clip 5 is a resilient metal component. The metal clip is formed from sheet metal, has a thickness of 1.5 mm, and is simple to form. Harder metal materials such as carbon steel and stainless steel can be used to provide better support. Typically, the second clip 5 is secured to the planter support frame together with the rear housing 2 via bolts.

[0047] Example 2

[0048] The seeder of this embodiment includes the precision seed metering device with a snap-on and tightening function in Example 1.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0052] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A precision seed metering device with a snap-on and tightening function, comprising a front shell (1) and a rear shell (2), wherein the rear shell (2) is arranged at the rear end of the front shell (1) and fits together to form a seeding cavity, wherein the front shell (1) and the rear shell (2) are connected at their edges by a plurality of opening and closing structures (3) spaced apart so that the two shells can be combined, a seeding box (11) connected to the seeding cavity is integrally provided on one end of the front shell (1) away from the rear shell (2), a seeding port (12) connected to the seeding cavity is provided on the lower portion of one side of the front shell (1), and an air pipe (21) connected to the seeding cavity is integrally provided on the rear shell (2), and the device is characterized in that: The portions of the edges of the front shell (1) and the rear shell (2) where the opening and closing structure (3) is not provided are fastened together by means of a snap-fit structure (4).

2. The precision seed metering device with a snap-on and tightening function according to claim 1, characterized in that: The buckle structure (4) is arranged at a position close to the seed drop opening (12) at the lower portion of the edges of the front shell (1) and the rear shell (2).

3. The precision seed metering device with a snap-on and tightening function according to claim 2, characterized in that: The lower part of the rear shell (2) is provided with an ear plate (22), and the buckle structure (4) is provided on the ear plate (22).

4. The precision seed metering device with a snap-on and tightening function according to claim 3, characterized in that: The snap-fit structure (4) comprises a main body (41) integrally formed with the ear plate (22) and arranged vertically, and a wedge-shaped hook portion (42) is provided at one end of the main body (41) away from the ear plate (22), and the hook portion (42) is hooked on the front side of the lower edge of the front shell (1).

5. The precision seed metering device with a snap-on and tightening function according to claim 4, characterized in that: A slag discharge window (23) communicating with the sowing cavity is provided at a portion of the rear lower portion of the rear shell (2) corresponding to the snap structure (4), and the slag discharge window (23) is located in a middle region of the lower portion of the rear shell (2) or near the middle region.

6. A precision seed metering device with a snap-on and tightening function according to any one of claims 3 to 5, characterized in that: It also includes a second buckle (5), which is detachably mounted on the front side of the ear plate (22) and buckled on the lower edge of the front shell (1).

7. The precision seed metering device with a snap-on and tightening function according to claim 6, characterized in that: The second clip (5) is a "Z"-shaped piece, one end of the second clip (5) is attached to the front side of the ear plate (22) and is detachably connected to the ear plate (22), and the other end of the second clip (5) is buckled at the lower edge of the front shell (1).

8. The precision seed metering device with a snap-on and tightening function according to claim 7, characterized in that: A screw hole is provided on the rear side of the ear plate (22), and one end of the second clip (5) is threadedly connected to the screw hole on the ear plate (22) via a bolt passing through the second clip (5).

9. The precision seed metering device with a snap-on and tightening function according to claim 7, characterized in that: The second buckle (5) is a metal piece with elasticity.

10. A seed drill, characterized in that: It comprises the precision seed metering device with a snap-on and tightening function as described in any one of claims 1 to 9.

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