CN217523201U - Air-closing valve adjusting device for air-suction type seed sowing device - Google Patents

Abstract

The utility model discloses an air-lock valve adjusting device for an air-suction seed sowing device, which comprises an installation column arranged in an air chamber shell, an adjuster capable of rotating along the circumferential direction of the installation column and an air-lock valve; the air-blocking valve is connected with the end part of the regulator far away from the mounting column. The utility model discloses can guarantee to close the requirement in the entering pipe that the gas position satisfies behind the gas that closes the reasonable position of closing the pneumatic valve of big or small adjustment of seed, improve the homogeneity of seed seeding back plant spacing.

Description

Air-closing valve adjusting device for air-suction type seed sowing device

Technical Field

The utility model relates to a gas check valve adjusting device for air-aspiration type seed metering ware belongs to seed metering ware technical field.

Background

The seeding requirement of the air-aspiration type precision seeder needs to have accurate seeding quantity and uniform seeding plant spacing, the air-tight effect and the air-tight position of the air-tight valve arranged in the air chamber shell directly influence the uniformity of the plant spacing seeding, and due to the fact that the sizes of different seeds are different, the air-tight valve can smoothly enter the seed guide pipe after the seeds are air-tight by needing a proper air-tight position aiming at different material seeds and the installation positions of different seed plates and seed guide pipes, and the uniformity of the plant spacing after the seeds are seeded is ensured. Therefore, there is an urgent need for an air-lock valve adjusting device capable of adjusting the air-lock position.

Disclosure of Invention

To the problem that above-mentioned prior art exists, the utility model provides a close pneumatic valve adjusting device for air-suction type seed metering ware can guarantee to close in the suitable gas position that closes of size adjustment of seed, the entering pipe that the seed can be smooth after the gas, and then improve the homogeneity of seed seeding back plant spacing.

In order to achieve the purpose, the utility model provides an air-lock valve adjusting device for an air-suction seed sowing device, which comprises an installation column arranged in an air chamber shell, an adjuster capable of rotating along the circumferential direction of the installation column and an air-lock valve; the air-blocking valve is connected with the end part of the regulator far away from the mounting column.

As a preferred scheme, a limiting groove is formed in the side wall of the mounting column, and the end part, close to the mounting column, of the regulator is inserted into the limiting groove to be connected with the mounting column.

As a preferable scheme, a pin hole is formed in the position, opposite to the limiting groove, of the mounting column, a mounting hole is formed in one end, close to the mounting column, of the adjuster, and the adjuster is connected with the mounting column through the pin hole and the mounting hole in a mode that a pin shaft penetrates through the pin hole.

As a preferred scheme, the device further comprises a pointer, the pointer is arranged at the end portion of the pin shaft, and a graduated scale used for indicating the rotation condition of the regulator is arranged on the mounting column.

As a preferred scheme, the mounting hole is a square hole, the middle part of the pin shaft is provided with a protruding part matched with the square hole, the diameters of two ends of the pin shaft are different, the diameter of the lower end of the pin shaft is smaller than that of the upper end of the pin shaft, the diameter of the pin hole above the limiting groove is equal to that of the upper end of the pin shaft, and the diameter of the pin hole below the limiting groove is equal to that of the lower end of the pin shaft; the side length of the pin shaft protruding part is larger than the diameter of the lower end of the pin shaft.

Compared with the prior art, the utility model has the advantages of it is following:

1) The utility model discloses can be according to the suitable closed gas position of the big or small adjustment of seed, ensure the entering pipe that the seed can be smooth behind the closed gas, and then improve the homogeneity of seed seeding back plant spacing.

2) The utility model discloses be equipped with pointer and scale, drive at the regulator and close the pneumatic valve rotation in-process, the round pin axle will rotate along with the regulator is synchronous in the pinhole, and the pointer also rotates along with it, can in time know the concrete rotation condition of closing the pneumatic valve according to observing the scale on the pointer indication scale.

3) The utility model has the advantages of simple integral structure, convenient use and low cost.

Drawings

Fig. 1 is a schematic view of the installation structure of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is a schematic view of the regulator and air-lock valve of the present invention;

fig. 4 is a schematic structural diagram of the mounting post of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 4, the air-lock valve adjusting device for an air-suction seed sowing device of the present embodiment comprises a mounting column 3 arranged in an air chamber shell 4, an adjuster 2 capable of rotating along the circumferential direction of the mounting column 3 and an air-lock valve 1; the air-blocking valve 1 is connected with the end of the regulator 2 far away from the mounting column 3.

Considering that the position of the air-blocking valve 1 is directly related to the position of the seed on the rotating seed-metering disc 5, the adsorption force disappears after the air-blocking valve 1 blocks the air on the seed-metering disc 5, and the seeds fall into the seed guide pipe under the action of gravity. Meanwhile, because the seeds are different in size and the air-closing position is matched with the seed guide pipe for use, the seeds can fall vertically along the tangential direction when the air-closing position is in the horizontal direction generally. However, in the actual operation process, the relative positions of different seeds and the seed metering device are different, for example, corn and soybean, the corn seeds are larger and slightly heavier, the soybean seeds are smaller and slightly lighter, the horizontal speeds from the seed guiding pipe outlets are different, and if the same air-tight position is adopted, the bounce falling into the seed ditch is increased easily, and the plant spacing is not uniform. Experiments show that when the air-closing position of the smaller seeds is close to a point, the included angle between the tangential speed and the vertical direction of the smaller seeds is possibly a little, and the smaller seeds fall along the curved surface of the seed guiding pipe more ideally. The event the utility model discloses the accessible rotates the adjustment that the regulator realized closing valve 1 position to realize the adjustment of closing the gas position, specific adjustment direction can be decided according to the size of seed. When larger seeds are sowed, the regulator 2 can be controlled to rotate anticlockwise so as to meet the requirement that the air-closing valve 1 is close to the lower point, namely the included angle between the air-closing valve 1 and the horizontal direction is slightly smaller; when smaller seeds are sowed, the regulator 2 can be controlled to rotate clockwise, so that the air closing valve 1 moves upwards, namely, the air closing valve 1 is close to a point, and the included angle between the air closing valve 1 and the horizontal direction is slightly larger.

In this embodiment, the whole assembly relationship is as shown in fig. 1, the air-blocking valve 1 is mounted on the regulator 2, the regulator 2 is mounted in the mounting column 3, and the seed-metering disc 5 is mounted on the mounting column 3 and rotates synchronously with the air chamber housing 4. Before use, the regulator 2 is rotated according to the size of the seeds, so that the position of the air-closing valve 1 meets the requirement that the seeds fall off from a proper place on the seed-metering disc. After the position of the air-blocking valve is adjusted and seeds are loaded, air pressure is introduced into the air chamber shell 4, the seed discharging disc 5 and the air chamber shell 4 rotate synchronously, the air-blocking valve 1 is in a fixed state after being adjusted to a proper position through the regulator 2 arranged on the mounting column 3, after the seeds carried by the seed discharging disc 5 reach the air-blocking position of the air-blocking valve 1, the adsorption force disappears, the seeds fall under the action of gravity, enter the seed guide pipe and fall into the seed ditch along the seed guide pipe, and the uniformity of the seed spacing after the seeds are sowed is improved.

In some embodiments, a limiting groove 8 is formed on a side wall of the mounting post 3, and an end of the adjuster 2 close to the mounting post 3 is inserted into the limiting groove 8 to be connected with the mounting post 3. Spacing groove 8 is arranged along the erection column 3 axial, and regulator 2 is the connecting rod structure, and one end stretches into spacing groove 8 and links with erection column 3, and regulator 2 controls the rotation in spacing groove 8.

In some embodiments, a pin hole 9 is formed in the mounting post 3 at a position opposite to the limiting groove 8, a mounting hole (not shown) is formed in one end of the adjuster 2 close to the mounting post 3, and the adjuster 2 and the mounting post 3 are connected by a pin shaft penetrating through the pin hole 9 and the mounting hole. The mounting hole is a square hole, the middle of the pin shaft is provided with a protruding part matched with the square hole, the diameters of two ends of the pin shaft are different, the diameter of the lower end of the pin shaft is smaller than that of the upper end of the pin shaft, correspondingly, the diameter of the pin hole above the limiting groove is equal to that of the upper end of the pin shaft, and the diameter of the pin hole below the limiting groove is equal to that of the lower end of the pin shaft. The side length of the pin shaft protruding part is larger than the diameter of the lower end of the pin shaft. The lower end of the pin shaft penetrates through the upper pin hole (namely the pin hole above the limiting groove), the mounting hole and the lower pin hole (namely the pin hole below the limiting groove) from top to bottom to realize the connection between the regulator 2 and the mounting column 3, and the device is simple to operate and low in cost.

In some embodiments, as shown in fig. 2 and 3, a pointer 6 may be further included, the pointer 6 is disposed at an end of the pin, and the mounting post 3 is provided with a scale 7 for indicating the rotation of the adjuster 2. In the process that the regulator 2 drives the air closing valve 1 to rotate, the pin shaft synchronously rotates along with the regulator 2 in the pin hole, the pointer 6 also rotates along with the pin shaft, and the specific rotation condition of the air closing valve 1 can be known according to the scale on the scale 7 indicated by the observation pointer 6; when waiting that regulator 2 drives shut valve 1, round pin axle and rotate to suitable position, can be with the round pin axle for the erection column 3 stationary, stability when guaranteeing to use.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (5)

1. An air-blocking valve adjusting device for an air-suction seed sowing device is characterized by comprising a mounting column arranged in an air chamber shell, an adjuster capable of rotating along the circumferential direction of the mounting column and an air-blocking valve; the air-blocking valve is connected with the end part of the regulator far away from the mounting column.

2. The air-lock valve adjusting device for an air-suction seed metering device as claimed in claim 1, wherein a limiting groove is formed on the side wall of the mounting column, and the end of the adjuster close to the mounting column is inserted into the limiting groove to be connected with the mounting column.

3. The air-lock valve adjusting device for an air-suction seed metering device as claimed in claim 2, wherein a pin hole is formed in the mounting column at a position opposite to the limiting groove, a mounting hole is formed in one end of the adjuster close to the mounting column, and the adjuster and the mounting column are connected by a pin shaft penetrating through the pin hole and the mounting hole.

4. The air-lock valve adjusting device for an air-suction seed metering device as claimed in claim 3, further comprising a pointer, wherein the pointer is arranged at the end of the pin shaft, and a graduated scale for indicating the rotation condition of the adjustor is arranged on the mounting column.

5. The air-lock valve adjusting device for an air-suction seed metering device as claimed in claim 3, wherein the mounting hole is a square hole, the middle part of the pin shaft is provided with a protrusion part matched with the square hole, the two ends of the pin shaft have different diameters, the diameter of the lower end of the pin shaft is smaller than that of the upper end of the pin shaft, the diameter of the pin hole above the limiting groove is equal to that of the upper end of the pin shaft, and the diameter of the pin hole below the limiting groove is equal to that of the lower end of the pin shaft; the side length of the pin shaft protruding part is larger than the diameter of the lower end of the pin shaft.

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