Seed box of concentrated-discharging drum-type seed-discharging body

Abstract

The utility model discloses a seed box of a centralized seeding drum type seeding body, relates to the technical field of seeders, and aims to provide a seed box structure scheme of which a box cover is convenient to operate and disassemble. The box comprises a box body and a box cover, wherein the box body is hinged with the box cover; a sealing ring is arranged on the outer side of a box opening of the box body; the box body is connected with a rotating shaft, and a special-shaped wheel is fixed on the rotating shaft; the special-shaped wheel is provided with a limiting groove; the box cover is provided with a supporting base and a limiting rod located on the supporting base. When the box cover is pressed on the sealing ring, the limiting rod can enter the limiting groove by rotating the rotating shaft, and the limiting groove applies acting force towards the inner side of the box body to the limiting rod so that the box cover can press the sealing ring tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of seeders, and particularly relates to a seed box of a centralized row and drum type seed metering body. Background Art

[0002] For some pneumatic seed metering bodies, especially drum type seed metering bodies, during their working process, the air flow entering the box body of the seed metering body needs to move along a specific route, so the seed box needs to have sealing performance and thus requires special design. The traditional box cover sealing structure usually adopts a flange type, but this method is not conducive to disassembly and assembly. For a seeder that needs to frequently add seeds, it is obviously not applicable. This application aims to propose a structural solution that is easy to operate. Content of the Utility Model

[0003] The utility model provides a seed box of a centralized row and drum type seed metering body, which comprises a box body and a box cover. The box body is hinged to the box cover; a sealing ring is arranged outside the box opening of the box body; the box body is connected with a rotating shaft, and a special-shaped wheel is fixed on the rotating shaft; the special-shaped wheel is provided with a limiting groove; the box cover is provided with a supporting seat and a limiting rod located on the supporting seat; when the box cover presses on the sealing ring, the limiting rod can enter the limiting groove by rotating the rotating shaft, and the limiting groove exerts a force towards the inner side of the box body on the limiting rod so as to press the box cover tightly against the sealing ring.

[0004] A further setting of the utility model is that the inside of the sealing ring is hollow.

[0005] A further setting of the utility model is that the special-shaped wheel has a cam part for jacking up the limiting rod during rotation.

[0006] A further setting of the utility model is that the rotating shaft is connected with a handle, and the handle is located outside the box body.

[0007] A further setting of the utility model is that a locking hook is arranged on the outer wall of the box body, and a locking opening is arranged on the handle for hanging on the locking hook to limit the handle.

[0008] A further setting of the utility model is that the box body is provided with a concave platform, and the box opening and the sealing ring are arranged in the concave platform.

[0009] A further setting of the utility model is that the box cover is provided with a convex rib for pressing on the sealing ring.

[0010] The beneficial effect of the utility model is that the tight sealing work of the box cover can be realized only by operating the handle, which has the advantages of high efficiency and speed. Description of the Drawings

[0011] Figure 1 This is a schematic structural view of the box cover in the open state of the present utility model;

[0012] Figure 2 This is a schematic structural view of the special-shaped wheel locking the limit rod in the present utility model;

[0013] Figure 3 is Figure 2 a half-sectional view of;

[0014] Figure 4 This is a schematic structural view of the box cover in the lifted state of the present utility model;

[0015] Figure 5 is Figure 4 a half-sectional view of;

[0016] Figure 6 is Figure 2 a partial enlarged view of the position A in;

[0017] Reference numerals: 1, box body; 11, concave platform; 12, sealing ring; 13, box opening; 14, locking hook; 2, box cover; 21, convex rib; 3, rotating shaft; 4, special-shaped wheel; 41, limit groove; 42, cam portion; 5, handle; 51, locking opening; 6, limit rod; 7, support seat. Detailed implementation manners

[0018] The following will describe the preferred implementation manners of the present utility model with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0019] Referring to Figures 1 - 6 , the present utility model provides a collective row drum type seed metering device seed box, including a box body 1 and a box cover 2.

[0020] A concave platform 11 is provided at the top of the box body 1. A box opening 13 and a sealing ring 12 are provided in the concave platform 11. The sealing ring 12 is wound around the outside of the box opening 13. The inside of the sealing ring 12 is hollow.

[0021] The box body 1 is hinged to the box cover 2. The box cover 2 is provided with a circle of convex ribs 21, and the convex ribs 21 are used to press on the sealing ring 12 when the box cover 2 is buckled. The box cover 2 is provided with a support seat 7 and a limit rod 6 located on the support seat 7. The support seat 7 is located inside the convex ribs 21. The support seat 7 is two plates welded to the box cover 2; both ends of the limit rod 6 are fixedly connected to the two plates.

[0022] A rotating shaft 3 is arranged inside the box body 1. The rotating shaft 3 is rotatably connected to the box body 1, and one end of the rotating shaft 3 is connected to a handle 5 outside the box body 1. A special-shaped wheel 4 is fixed on the rotating shaft 3. The special-shaped wheel 4 is provided with a limit groove 41 and a cam portion 42.

[0023] Function of the limiting groove 41: When the lid 2 presses on the sealing ring 12, the limiting rod 6 can enter the limiting groove 41 by rotating the rotating shaft 3, and the limiting groove 41 exerts a force on the limiting rod 6 towards the inside of the box body 1 to press the lid 2 tightly against the sealing ring 12. In other words, the distances from the two ends of the limiting groove 41 to the rotating shaft 3 are different, so as to be able to exert a force on the limiting rod 6. For details, see Figure 3 Function of the cam portion 42: It is used to lift the limiting rod 6 during the rotation process.

[0024] The rotating shaft 3 can be driven to rotate by the handle 5. A locking hook 14 is provided on the outer wall of the box body 1, and a corresponding locking opening 51 is provided on the handle 5. The locking opening 51 is used to hang on the locking hook 14 to limit the handle 5.

[0025] When the lid 2 needs to be closed, first put down the lid 2 so that the convex rib 21 presses on the sealing ring 12, and then rotate the rotating shaft 3 through the handle 5. During the rotation process, the limiting rod 6 enters the limiting groove 41 and moves along the limiting groove 41. During the movement, the limiting rod 6 will be forced to move downward, that is, the restraining effect of the limiting groove 41 on the limiting rod 6, so that the convex rib 21 presses the sealing ring 12 tightly to play a sealing role. At this time, further press the handle 5 downward and at the same time outward so that the handle 5 bypasses the lower part of the locking hook 14, and then release the handle 5, and the locking opening 51 will hang on the locking hook 14. It should be noted here that when the locking opening 51 hangs on the locking hook 14, the limiting rod 6 is not at the end of the limiting groove 41, or the deepest part. It only needs to be in an appropriate position and exert enough force on the lid 2 to leave space for the further rotation of the handle 5 so that the handle 5 can bypass the locking hook 14. Figure 3 The figure shows the extreme position of the limiting rod 6 in the limiting groove 41, which is only a schematic representation of the structure. When the lid 2 needs to be opened, just operate the handle 5 in the reverse process of the above. However, as the handle 5 rotates continuously, when the limiting rod 6 comes out of the limiting groove 41 and contacts the cam portion 42, the lid 2 will be lifted under the action of the cam portion 42, which is convenient for directly lifting the lid 2.

[0026] In summary, the above-mentioned tight sealing work of the lid can be achieved only by operating the handle, which has the advantages of high efficiency and speed.

[0027] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0028] In the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0031] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A seed box of a collective row-by-row drum type seed metering device, comprising a box body and a box cover, characterized in that: The box body is hingedly connected to the box cover; A sealing ring is provided on the outer side of the box opening of the box body; The box body is connected to a rotating shaft, and a special-shaped wheel is fixed on the rotating shaft; the special-shaped wheel is provided with a limiting groove; The box cover is provided with a support seat and a limiting rod located on the support seat; When the box cover presses on the sealing ring, the limiting rod can enter the limiting groove by rotating the rotating shaft, and the limiting groove exerts a force on the limiting rod towards the inner side of the box body so that the box cover presses the sealing ring tightly.

2. The seed box of the centralized row and drum type seed metering device according to claim 1, characterized in that: The inside of the sealing ring is hollow.

3. The seed box of the centralized row drum type seed metering device according to claim 1, characterized in that: The special-shaped wheel has a cam portion for being able to lift the limiting rod during rotation.

4. The seed box of the centralized row and drum type seed metering device according to claim 1, characterized in that: The rotating shaft is connected to a handle, and the handle is located outside the box body.

5. The seed box of the grouped row roller type seed metering device according to claim 4, characterized in that: A locking hook is provided on the outer wall of the box body, and a locking opening is provided on the handle, and the locking opening is used to hang on the locking hook to limit the handle.

6. The seed box of the collective row-by-row drum type seed metering device according to claim 1, characterized in that: The box body is provided with a concave platform, and the box opening and the sealing ring are arranged in the concave platform.

7. The seed box of the collective row-by-row drum type seed metering device according to claim 6, characterized in that: The box cover is provided with a convex rib, and the convex rib is used to press on the sealing ring.

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