Air discharging device, air discharging assembly and centralized-discharging drum-type seed discharging body

Abstract

The utility model discloses an air discharging device, an air discharging assembly and a centralized-discharging drum-type seed metering body, relates to the technical field of seeders, and provides a corresponding structural scheme for meeting the requirement of blocking an air guide hole. The device comprises a supporting arm, a swinging arm and an elastic piece, the middle of the swing arm is connected with the supporting arm in a rotating mode, and one end of the swing arm is connected with the supporting arm through the elastic piece. A wind discharging wheel is arranged at the other end of the swinging arm; the supporting arm is provided with an installation hole used for being arranged on a shaft body in a penetrating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of seeders, in particular to an air discharger, an air discharge component and a collecting and discharging drum type seeding body. Background Art

[0002] The brief structure of the collecting and rowing drum type seeding body is described as follows: it includes a box body and a seeding drum inside the box body. The seeding drum is provided with a number of air guide holes. When working, two air flows are generated in the box body, one of which is used to blow the seeds upwards, and most of the air flows are discharged to the outside of the box body through the air guide holes through the inside of the seeding drum. In this process, the seeds will be blown onto the air guide holes, causing the seeds to rotate with the seeding drum. When the seeds rotate to the top of the seeding drum, the air guide holes need to be blocked so that the suction at the air guide holes disappears, and at the same time, another air flow blows the seeds out to the outside of the box body. The collecting and rowing drum type seeding body can refer to the Chinese utility model patent with patent number CN222827658U. In response to the need to block the air guide holes, this application aims to propose a new structural solution. Utility Model Content

[0003] The utility model proposes an air unloader, comprising a support arm, a swing arm, and an elastic member; the middle portion of the swing arm is rotatably connected to the support arm, and one end of the swing arm is connected to the support arm through the elastic member; an air unloading wheel is provided at the other end of the swing arm; and the support arm is provided with a mounting hole for penetrating the shaft.

[0004] The present invention is further configured as follows: it also includes a support rod, the support rod passes through at least one support arm; the support rod is used to limit the rotation angle of the swing arm so that the elastic member is in a stretched state.

[0005] The present invention is further configured as follows: the elastic member is a spring.

[0006] The present invention is further configured as follows: the support arm is provided with a hook, and one end of the elastic member is hooked on the hook.

[0007] The utility model is further configured as follows: the swing arm is provided with a hanging hole, and one end of the elastic member is hooked into the hanging hole.

[0008] The utility model is further configured as follows: two wind unloading wheels are provided and are symmetrically located on both sides of the swing arm.

[0009] The present invention further proposes an air unloading assembly, comprising a support rod and two air unloaders as described above, wherein the support rod simultaneously passes through and connects the support arms in each of the air unloaders.

[0010] The present utility model also proposes a collecting and rowing drum type seeding body, comprising a box body, wherein a main shaft and a seeding drum are arranged in the box body, the seeding drum is rotationally connected to the main shaft, and the main shaft and the box body are relatively fixedly arranged; a plurality of air unloaders as described above are arranged on the main shaft; the air unloaders are located on the inner side of the seeding drum.

[0011] The beneficial effects of the utility model are:

[0012] The wind unloading wheel has a relatively larger range of movement, and the force required to swing the wind unloading wheel is smaller, and it is easy to adapt and install.

[0013] The support rod supports the top of the support arm and improves the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the air unloader in Example 1;

[0015] Figure 2 is a structural schematic diagram of the air unloading assembly in Example 2;

[0016] Figure 3 The utility model is a structural schematic diagram of the utility model in which the middle air discharge component is installed in the seeding drum.

[0017] Figure numerals: 1. support arm; 11. hook; 12. mounting hole; 2. swing arm; 21. hanging hole; 3. wind wheel; 4. elastic member; 5. support rod; 6. seeding drum; 61. air guide hole; 7. main shaft. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] Example 1

[0020] See also Figure 1 This embodiment discloses an air unloader comprising a support arm 1, a swing arm 2, and an elastic member 4. The support arm 1 is a cut-to-shape metal plate. Its bottom is provided with a mounting hole 12 for passing through a shaft. Its top is pivotally connected to the middle of the swing arm 2. The swing arm 2's rotational plane is parallel to the surface of the support arm 1.

[0021] One end of the swing arm 2 is connected to the support arm 1 through an elastic member 4. Specifically, the elastic member 4 is a spring, the support arm 1 is provided with a hook 11, and the swing arm 2 is provided with a hanging hole 21. One end of the elastic member 4 is hooked to the hook 11 and the other end is hooked to the hanging hole 21.

[0022] A wind unloading wheel 3 is provided at one end of the swing arm 2. Two wind unloading wheels 3 are provided and are symmetrically located on either side of the swing arm 2. The two wind unloading wheels 3 share a common rotating shaft, the axis of which is perpendicular to the surface of the support arm 1. The wind unloading wheels 3 are made of polyurethane material, which gives them elasticity.

[0023] When the unloading wheel 3 moves toward the mounting hole 12, the swing arm 2 rotates, and the elastic member 4 is stretched. When the force acting on the unloading wheel 3 is removed, the unloading wheel 3 is reset under the action of the elastic member 4. In addition, the distance from the center of the unloading wheel 3 to the center of the swing arm 2 is greater than the distance from the center of the hanging hole 21 to the center of the swing arm 2. This is equivalent to extending the force arm of the unloading wheel 3. In the case where the deformation amplitude of the elastic member 4 is inconvenient, the unloading wheel 3 has a larger range of motion, which is equivalent to adapting to seeding drums 6 of different sizes. Secondly, during the installation process, swinging the unloading wheel 3 reduces the force required to rotate the swing arm 2, which facilitates installation.

[0024] Example 2

[0025] This embodiment discloses an air unloading assembly, comprising a support rod 5 and at least two air unloading devices as described in Example 1. Figure 2 As shown, the support rod 5 passes through the support arms 1 in the two air unloaders at the same time and is fixedly connected to the support arms 1. The support rod 5 supports the top of the support arm 1 and improves the stability of the structure.

[0026] Example 3

[0027] This embodiment discloses a centralized seeding drum type seeding body, including a box body, a relatively fixed main shaft 7 is set in the box body, a seeding drum 6 is also set in the box body, the seeding drum 6 is rotatably connected to the main shaft 7, and a plurality of rows of air guide holes 61 are set on the seeding drum 6. Since the improvement of this utility model only involves the air discharger and the air discharge assembly, other unrelated structures are not included in the description. Figure 3 Detailed display in.

[0028] The air discharge assembly is mounted on the main shaft 7, which passes through the mounting hole 12 and is welded to the support arm 1. Each air discharge wheel 3 corresponds to a row of air guide holes 61. The air discharge wheel 3 presses against the inner wall of the seeding drum 6. When the seeding drum 6 rotates, the air discharge wheel 3 blocks the air guide holes 61 on the inner side of the seeding drum 6.

[0029] This embodiment has all the advantages of the above-mentioned embodiment 1 and embodiment 2.

[0030] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0031] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0034] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An air unloader, characterized in that: It includes a support arm, a swing arm, and an elastic part; the middle part of the swing arm is rotatably connected to the support arm, and one end of the swing arm is connected to the support arm through the elastic part; a wind unloading wheel is provided at the other end of the swing arm; and the support arm is provided with a mounting hole for passing through the shaft.

2. The air unloader according to claim 1, characterized in that: The elastic member is a spring.

3. The air unloader according to claim 1, characterized in that: The support arm is provided with a hook, and one end of the elastic member is hooked on the hook.

4. The air unloader according to claim 1, characterized in that: The swing arm is provided with a hanging hole, and one end of the elastic member is hooked on the hanging hole.

5. The air unloader according to claim 1, characterized in that: The wind unloading wheels are provided with two and are symmetrically located on both sides of the swing arm.

6. A wind unloading assembly, characterized in that: It comprises a support rod and at least two air unloaders according to any one of claims 1 to 5, wherein the support rod passes through and connects the support arms in each of the air unloaders.

7. A collecting and rowing drum type seeding body, characterized in that: It includes a box body, in which a main shaft and a sowing drum are arranged, the sowing drum is rotationally connected to the main shaft, and the main shaft and the box body are relatively fixed; a plurality of air unloaders as described in any one of claims 1 to 6 are arranged on the main shaft; the air unloader is located on the inner side of the sowing drum.

Images